LPG IMPORT JETTY AT DAHEJ, GUJARAT - Environmental ...

LPG IMPORT JETTY AT DAHEJ, GUJARAT PRE - FEASIBILITY REPORT

JUNE 5, 2021 HINDUSTAN PETROLEUM CORPORATION LIMITED

MUMBAI

PFR for the proposed construction of LPG Import Jetty with dispatch station and Onshore pipeline to Vadadora at Dahej village, Bharuch District, Gujarat.

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Table of Contents

EXECUTIVE SUMMARY .................................................................................................................... 4

1 INTRODUCTION ....................................................................................................................... 5

1.1 Identification of Project & Proponent .............................................................................. 5

1.2 Description & Nature of the Project ................................................................................. 6

1.3 Need for the Project ......................................................................................................... 7

1.4 Demand-Supply Gap ......................................................................................................... 7

1.5 Imports vs Indigenous Production .................................................................................... 8

1.6 Employment Generation due to the Project .................................................................... 8

1.7 Codes and Standards ........................................................................................................ 8

2 PROJECT DESCRIPTION ......................................................................................................... 10

2.1 Types of Project including Interlinked and Interdependent Project, if any. .................. 10

2.2 Location of the Project ................................................................................................... 10

2.3 Details of alternate sites considered and selection criteria ........................................... 12

2.4 Bathymetry ..................................................................................................................... 12

2.5 Size or Magnitude of Operation ..................................................................................... 13

2.6 Project Description with Process Details ........................................................................ 14

2.6.1 Jetty Facilities .......................................................................................................... 14

2.6.2 Marine Loading Arm (MLA) ..................................................................................... 15

2.6.3 LPG Handling ........................................................................................................... 16

2.7 Vessel Characteristics ..................................................................................................... 18

2.8 Vessel Pumping Capacity ................................................................................................ 18

2.9 Berth Occupancy ............................................................................................................. 18

2.10 Methodology ............................................................................................................... 19

2.11 Raw Materials required and Quantum ....................................................................... 20

2.12 Resource optimization / recycling .............................................................................. 20

2.13 Water & Power Requirement ..................................................................................... 20

2.14 Quantity of Wastes ..................................................................................................... 20

2.15 Manpower Requirement ............................................................................................. 21

2.16 Preliminary Cost Estimate Summary........................................................................... 21

3 SITE ANALYSIS ....................................................................................................................... 22

3.1 Connectivity .................................................................................................................... 22

3.2 Land Ownership .............................................................................................................. 22

3.3 Topography ..................................................................................................................... 22


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3.4 Soil Profile ....................................................................................................................... 22

3.5 Climatic Conditions ......................................................................................................... 23

3.6 Winds .............................................................................................................................. 23

3.7 Rainfall ............................................................................................................................ 23

3.8 Temperature and humidity............................................................................................. 24

3.9 Visibility ........................................................................................................................... 24

3.10 Tide Levels ................................................................................................................... 24

3.11 Wave Parameters ........................................................................................................ 24

3.12 Cyclonic Storms ........................................................................................................... 25

3.13 Existing land use pattern ............................................................................................. 25

3.14 Existing Infrastructure ................................................................................................. 25

3.15 Social Infrastructure available..................................................................................... 25

4 PLANNING (BRIEF) ................................................................................................................ 26

4.1 Planning Concept ............................................................................................................ 26

4.2 Population Projection ..................................................................................................... 26

4.3 Land use planning ........................................................................................................... 26

4.4 Assessment of infrastructure Demand ........................................................................... 27

4.5 Amenities / Facilities ....................................................................................................... 27

4.6 Work Elements and Scope .............................................................................................. 27

5 PROPOSED INFRASTRUCTURE .............................................................................................. 28

5.1 Industrial Area (Processing Area) ................................................................................... 28

5.2 Residential Area (Non – Processing Area) ...................................................................... 28

5.3 Green belt ....................................................................................................................... 28

5.4 Social Infrastructure ....................................................................................................... 28

5.5 Connectivity .................................................................................................................... 28

5.6 Drinking Water management ......................................................................................... 28

5.7 Sewerage System ............................................................................................................ 28

5.8 Industrial Waste Management ....................................................................................... 28

5.9 Solid waste management ............................................................................................... 28

6 REHABILITATION & RESETTLEMENT (R&R) PLAN ................................................................ 30

7 PROJECT SCHEDULE AND COST ESTIMATES ......................................................................... 31

7.1 Start of Construction & Completion ............................................................................... 31

7.2 Estimated Project Cost.................................................................................................... 31

8 ANALYSIS OF PROPOSAL & RECOMMENDATIONS .............................................................. 32


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8.1 Financial Assessment ...................................................................................................... 32

8.2 Social Benefit .................................................................................................................. 32

9 CONCLUSION ......................................................................................................................... 33

List of Figures

Figure 2-1: Geographical Location of Dahej .................................................................................. 10

Figure 2-2: Location of proposed jetty (Option – 01 & 02) ........................................................... 11

Figure 2-3: Proposed Dispatch Station Location ........................................................................... 11

Figure 2-4: Location for Jetty project (Option 1 & 2) .................................................................... 12

Figure 2-5: Bathymetry Area ......................................................................................................... 13

Figure 2-6: Facilities at Unloading Platform .................................................................................. 15

Figure 2-7 Loading position and operating envelope (HHWS) ...................................................... 16

Figure 2-8 Process Flow Diagram .................................................................................................. 18

Figure 3-1: Annual wind rose diagram at jetty head ..................................................................... 23

List of Tables

Table 1-1: List of National and International Standards ................................................................. 8

Table 2-1 Typical properties of Propane and Butane.................................................................... 17

Table 2-2: Vessel Characteristics ................................................................................................... 18

Table 2-3: Vessel Pumping Capacity .............................................................................................. 18

Table 2-4: Berth Occupancy Estimate ........................................................................................... 19

Table 3-1: Soil Parameters for approach trestle zone A, B ........................................................... 22

Table 3-2: Soil parameters for Approach zone C and Jetty ........................................................... 22

Table 3-3: Wind parameters .......................................................................................................... 23


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EXECUTIVE SUMMARY

S.No Description Details

1. Name of the Project LPG Import Jetty along with dispatch station at Village: Dahej, Taluka: Vagra, District: Bharuch, Gujarat

2. Location and Features of the Project

Location: LPG import Jetty (5 MMTPA capacity) with approach trestle, and all associated facilities such as loading arms, firefighting facilities, electrical and mechanical equipments, piping and pipelines up to the proposed Dahej Onshore Dispatch Station, where-in, onshore pumping station will be located.

Description Latitude Longitude

Jetty 21°44’03.36’’ N 21°43’50.89’’ N 21°46’10.48’’ N 21°45’07.31’’ N

72°32’19.41’’ E 72°27’56.82’’ E 72°28’21.07’’ E 72°32’38.76’’ E

LFP 21°44'3.55"N 72°32'27.50"E

Small Storage Facility

Inside the On-shore Dispatch Station

Salient features of the project

Development of necessary facility/equipment for ship berthing and mooring,

LPG unloading arms with all safety measures.

LPG storage and pumping facilities

Natural Gas pipeline for connectivity to storage cavern facilities at Vadodara

Fire Pump house

Jetty Control room cum substation building

Parking and passing bays, other misc. buildings/ cabin for Safety/Security etc.

3. Product/ Volume Handling Capacity

LPG- 5 MMTPA

4. Total land requirement for the project

The on shore Dispatch Station at Dahej - approximately 30 Acres

Dedicated approach connecting the dispatch station to the jetty approach bund/ trestle- approx.4 acres

5. Total Water requirement & Source

5 KLD

6. Manpower During the construction phase, services of about 500 Nos. laborers would be hired mostly from nearby areas. Subsequently, in operation about 50 Nos. of man power shall be employed directly/indirectly

7. Estimated Cost of the Project Rs. 1333 Crores


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1 INTRODUCTION

1.1 Identification of Project & Proponent

Hindustan Petroleum Corporation Limited (HPCL) was formed on July 15, 1974. HPCL is a

Maharatna Central Public Sector Enterprise (CPSE) and an S&P Plats Top 250 Global Energy

Company with a ranking of 55 with Annual Gross sales of Rs. 2, 86,250 Crore during financial year

2019-20. HPCL enjoys over 18% market share in India and has a strong presence in Refining &

Marketing of petroleum products in the country. During 2019-20, HPCL recorded Profit after Tax

(PAT) of Rs. 2,637 Crore.

In response to EoI from IOCL and subsequent consultation with other OMCs (HPCL, BPCL) and

stakeholders, PNGRB invited bids for revised pipeline configuration i.e. 2650 km long Petroleum

and Petroleum Products (LPG) pipeline from Kandla (Gujarat) to Gorakhpur (Uttar Pradesh) with

additional feeder lines of Pipavav-Ahmedabad, Dahej-Koyali and associated branch lines to Bina

Refinery & BPCL/ HPCL‟s bottling plants, hereinafter referred as “KGPL”, with a system capacity

of 8.25 MMTPA.

Petroleum and Natural Gas Regulatory Board (PNGRB), a regulatory body under Govt. of India,

has granted authorization to the IHB Ltd a joint venture of Indian Oil Corp. Ltd, Hindustan

Petroleum Corp. Ltd. and Bharat Petroleum Corp. Ltd. for laying of 2757 Kms. long Kandla -

Gorakhpur LPG Pipeline on 31.12.2018. The estimated project cost is Rs. 10070 Crores &

completion period is 36 months from the date of authorization. The authorized capacity of this

pipeline is 8 MMTPA. The proposed pipeline connects the LPG Import facilities in Gujarat, Koyali

Refinery (IOCL), Bina Refinery (BPCL JV) with 22 nos. of OMCs (Oil Marketing Companies) LPG

bottling plants in Gujarat, MP and UP KGPL. The pipeline will cater to the LPG demand gap of

Central and Northern states of India.

The 2800 Km infrastructure being developed by the 3 Central PSUs participated JV- IHB Ltd is

towards above objectives with a large investment over Rs.10000 crores. Honorable Prime

Minister has laid the foundation stone of this mega Infrastructure Project of Kandla-Gorakhpur

Pipeline project on 24.02.2019.

HPCL owns and operates Refineries at Mumbai (west coast) & Visakhapatnam (East coast) with

designed capacities of 7.5. MMTPA (Million Metric Tonnes Per Annum) & 8.3 MMTPA

respectively. HPCL also owns the largest Lube Refinery in the country at Mumbai for producing

Lube Oil Base Stock with a capacity of 428 TMTPA. HPCL holds 48.99% equity stake in JV Company,

HPCL-Mittal Energy Limited (HMEL) that operates a 11.3 MMTPA capacity refinery at Bathinda


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(Punjab) and also has 16.96% equity stake in Mangalore Refinery and Petrochemicals Limited

(MRPL) which operates a 15 MMTPA capacity refinery at Mangalore (Karnataka).

HPCL has a vast marketing network consisting of 14 Zonal offices in major cities and 133 Regional

Offices facilitated by a Supply & Distribution infrastructure comprising 43 Terminals/TOPS/

Installations, 44 Aviation Fuel Stations, 50 LPG Bottling Plants and 68 Inland Relay/Lube Depots.

The customer touch points constitute of 16,868 Retail Outlets, 1,638 SKO/LDO dealers and 6,137

LPG Distributorships, 115 carrying and forwarding agents, 253 Lube distributorships with a

customer base of over 8.4 Crore domestic LPG consumers.

HPCL has the second largest share of product pipelines in India with a pipeline network length of

3,775 kms. HPCL undertakes Exploration & Production (E&P) of hydrocarbons through its wholly

owned subsidiary M/s. Prize Petroleum Company Limited (PPCL). HPCL also conducts business

through 19 Joint Venture (JV) & Subsidiary companies operating across oil & gas value chain.

Consistent excellent performance has been made possible by highly motivated workforce of over

9,800 employees working all over India at various refining and marketing locations. HPCL is

committed to conducting business with an objective of preserving the environment, sustainable

development, being a safe work place and enrichment of the quality of life of employees,

customers and the community.

HPCL’s CSR reaffirms the continuing commitment of corporation toward societal development.

The key focus areas are in the fields of Child Care, Education, Health Care, Skill Development &

Community Development, positively impacting the lives of less privileged. The overall spend on

CSR activities was Rs. 182 crore during 2019-20.

1.2 Description & Nature of the Project

Petroleum and Natural Gas Regulatory Board (PNGRB), a regulatory body under Govt. of India,

has granted authorization to the IHB Ltd a joint venture of Indian Oil Corp. Ltd, Hindustan

Petroleum Corp. Ltd. and Bharat Petroleum Corp. Ltd. for laying of 2757 Kms. long Kandla -

Gorakhpur LPG Pipeline on 31.12.2018. The estimated project cost is Rs. 10070 Crores &

completion period is 36 months from the date of authorization.

In order to feed LPG into Kandla-Gorakhpur pipeline; HPCL is required to have LPG Import Facility

along with Jetty at Dahej Port, for receipt of LPG through Ocean Tankers and Storage facilities at at

Dahej, Gujarat for feeding into the proposed upcoming KGPL

HPCL had also signed a MOU with Gujarat Maritime Board on 18.01.2019 during the Vibrant

Gujarat Summit towards facilitating HPCL for establishing the subject LPG Import Facility at Dahej.

Honorable Prime Minister has laid the foundation stone of this mega Infrastructure Project of

Kandla-Gorakhpur Pipeline project on 24.02.2019.


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1.3 Need for the Project

Govt. of India is constantly promoting cleaner fuel especially in the rural thru various schemes

like Pradhan Mantri Ujjwala Yojana; under which till date more than 9 Crores LPG connections

have been given with majority of the connections being given in rural areas to promote the

Government of India’s vision of safer and greener fuel usage replacing the traditional fuels of

wood, cow dung, coal etc. This effort is also directly linked with India’s commitment towards

reducing its carbon footprint.

LPG (Liquefied Petroleum gas) is Govt. controlled priced product predominantly for domestic

consumption. This being an essential commodity, emphasis always has been distribution by the

3 Oil Marketing PSUs authorized by MoPNG and hence, this is required to be sourced as well as

distributed at optimum cost.

Country’s requirement of import cargos are procured on joint basis by all 3 Central PSUs (IOCL,

HPCL & BPCL). LPG Jetty infrastructure at Dahej proposed by HPCL can be used by all 3 Central

PSUs, for meeting the increasing country deficit LPG requirement. Further, with other initiatives

like the National Infrastructure Pipeline, the Govt. of India is requiring the PSUs to substantially

improve infrastructure investments to give boost for the economy with the aim of reaching the

5 Trillion $ economy scale by 2024.

1.4 Demand-Supply Gap

It is a very well-known fact that India as a country is deficit in domestic gas production and

approximately 80% of the energy basket is through imports. LPG also is a similar case wherein

India is pre-dominantly dependent on the imports to source the LPG for meeting the ever growing

domestic demand.

As per the PNGRB authorization details of pipeline distances, Dahej, Pipavav, Kandla are the

nearest connecting import locations in the order of proximity for supplies thru the Kandla

Gorakhpur LPG pipeline. HPCL does not have any own import facilities connected to the proposed

KGPL, while IOC has Kandla import facility which is presently catering to Jamnagar Loni Pipeline

(JLPL). The net import requirement of HPCL (excluding product offtake from Bina Refinery) for

supply through KGPL by 2033-34, is 1.77 MMTPA.

The current import facility of Gujarat Chemical Port Terminal Company (GCPTCL) at Dahej has

capacity of only 0.5 MMTPA out of which presently HPCL is utilizing 0.14 MMTPA. IOCL Kandla’s

present capacity of 1.2 MMTPA is being fully utilized by them for JLPL. They have plans for

capacity expansion in two phases to 2.5 MMTPA & 5 MMTPA. However, their own requirement

of JLPL & KGPL are expected to be more than the possible expansion. A new LPG import facility

of Adani has come up at Mundra with 2.5 MMTPA capacity and with a phase-II capacity of 5


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MMTPA. However, this source has maximum pipeline distance to receiving plants as compared

to Dahej and others Gujarat Ports Chhara and Pipavav and hence, is not economical for product

sourcing.

Accordingly, Dahej is the first preferred port for LPG imports to meet HPCL input requirement

into KGPL in view of shorter distance to the proposed KGPL alignment. Therefore, HPCL has

proposed to build the Jetty at Dahej and Cavern storage at Vadodara for overall cost optimization

in distribution of LPG Product into the upcoming Kandla-Gorakhpur Pipeline. View above and for

the proposed Dahej LPG Import Facilities to be developed by HPCL, which is crucial infrastructure

project to fulfil the growing LPG demands and in order to meet Govt. of India schemes like

Pradhan Mantri Ujjwala Yojana, National Infrastructure Pipeline.

1.5 Imports vs Indigenous Production

The proposed jetty is planned to be developed for import of LPG. The jetty construction in

hinterland through backward / forward integration would be able to effectively use the jetty.

1.6 Employment Generation due to the Project

During the construction phase, services of about 500 Nos. laborers would be hired mostly from

nearby areas. Subsequently, in operation about 50 Nos. of man power shall be employed

directly/indirectly. HPCL will give preference to the local people during construction and

operation phase of the project depending upon the skill, job requirement and capability. Several

other indirect employment opportunities will be created in the surrounding areas viz., Transport,

business, workshops, grocery & retails, medical, etc.

1.7 Codes and Standards

The jetty facilities shall be designed in accordance with various national and international design

standards, codes, guidelines as issued from various agencies. These are listed in Table 1-1.

Table 1-1: List of National and International Standards

Code Description

Marine Facilities

IS 4651 Code of Practice for Planning and Design of Port and Harbours.

Part 1 Site Investigation

Part 2 Earth Pressure

Part 3 Loading

Part 4 General design considerations

Part 5 Layout and functional requirements

BS 6349 Code of practice for maritime structures

Part 1 General Criteria

Part 2 Design of Quay walls, jetties and dolphins

Part 4 Fendering and Mooring System

Loading

IS 1893 Criteria for Earthquake Resistant Design of Structures.


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Code Description

Part 1:2002 General Provisions and Buildings

IS 875:1987 Code of Practice for Design Loads (Other than Earthquake) for Buildings and Structures – Part 3 : Wind Loads,

Structural Steel Design

IS 800 Code Practice for General Construction of steel

AISC Manual of steel construction 14th Edition

Steel Pile Design

API RP 2A Recommended practice for planning, design and constructing fixed off-shore structure.

AWS D1.1 Structural Welding code steel

RC and Pre-stressed Concrete Design

IS 456 - 2000 Plain and Reinforced Concrete – Code of Practice

IS 1786 Specification for high strength deformed steel bars and wires for concrete reinforcement

RC Bored Pile Design

IS 2911-1979 Part II Design and construction of Pile Foundations – Concrete Piles

Mooring

OCIMF Guidelines and Recommendations for the safe mooring of large ships at piers and sea islands

OCIMF Design and Construction specification for marine loading arms

OCIMF Recommendations for Oil Tanker manifolds and associated equipment

Fender system

PIANC Guidelines The guidelines for the design of fender system, 2002

PIANC Guidelines Harbour Approach Channels Design Guidelines Report No. 121-2014

PIANC Guidelines Development of Modern Marine Terminals Supplement to Bulletin No. 56

PIANC Guidelines Criteria for movement of moored ships in harbour Supplement to Bulletin No. 88 -1995

ISGOTT International Safety Guide for Oil Tankers and Terminals

OISD 116 Fire Protection facilities for petroleum refineries and oil/gas processing plants.

OISD 117 Fire Protection facilities for petroleum depots, terminals and pipeline installations

OISD 118 Layout for oil and gas installations

OISD 156 Fire Protection facilities for Ports handling hydrocarbons

OISD 194 Standard for the storage and handling of Liquefied natural gas

OISD 244 Storage and handling of petroleum products at depots and terminals including standalone crude oil storage facilities

NFPA-59A Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG)

SIGGTO IP. No. 14 Site Selection & Design for LNG Ports & Jetties

DNV-RP-B401 Cathodic protection Design.

CIRIA 154-1991 Manual on the use of rock in coastal and shoreline engineering

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2 PROJECT DESCRIPTION

2.1 Types of Project including Interlinked and Interdependent Project, if any.

The project consists of following three major work elements;

LPG import Jetty (5 MMTPA capacity) with approach trestle, and all associated facilities

such as loading arms, firefighting facilities, electrical and mechanical equipment,

Piping and pipelines on the Jetty & Trestle up to the proposed Dahej Onshore Dispatch

Station

On shore Dahej Dispatch Station for Pumping LPG towards Vadodara

2.2 Location of the Project

Dahej is located Gulf of Khambhat, Gujarat, about 150 km south west of Vadodara and 50 km

west of Baruch and Ankleshwar as shown in figure 2-1

Figure 2-1: Geographical Location of Dahej

Dahej is a coastal town with several industrial developments over the last few decades. Due to

rapid growth of industrial activities, many jetties and berths have been constructed in the

western part of the city facing Gulf of Khambhat.

HPCL signed a memorandum of understanding for the development of LPG import facility at

Dahej and Gujarat Maritime Board (GMB) for carrying out survey and site investigation works

within the following coordinates for the proposed LPG import Jetty North of existing Birla Copper


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jetty at Dahej. The final co-ordinates given by GMB of four corners of proposed site is given in

figure 2-2 & 2-3.

Figure 2-2: Location of proposed jetty (Option – 01 & 02)

The area proposed by GMB is north of existing Birla Copper Jetty by 1600m towards north. The

available waterfront is approximately 2000m. The minimum distance to reach low water line is

approximately 2.3 km (south location) and 3.0 km (north location) respectively. This is due to the

shifting of high water line (coast line) towards inside near the existing Dahej Port. It can be seen

from above figure that the inter-tidal zone is very long in the order of 1km to 1.5km. It is seen

from picture that deep water area (depth > 20m) is approximately 4.4km away and hence

dredging may not be required if the jetty is located in the close vicinity to 4.0km location.

Figure 2-3: Proposed Dispatch Station Location


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2.3 Details of alternate sites considered and selection criteria

The Location of proposed jetty for option-1 and option-2 is shown in figure 2-2. It can be seen

from figure that the distance to the shoreline is approximately 3000m and 4000m for option–1

and option-2 respectively where in 16m depth is available. The figure 2-4 also shows the location

of available land space that may be allotted for land based facilities such as dispatch station.

Figure 2-4: Location for Jetty project (Option 1 & 2)

Sr. No

Point COORDINATES

LATITUDE LONGITUDE

1. HPCL 1 21°44’03.36” N 72°32’19.41” E

2. HPCL 2 21°43’50.89” N 72°27’56.82” E

3. HPCL 3 21°46’10.58” N 72°28’21.07” E

4. HPCL 4 21°45’07.31” N 72°32’38.76” E

5. HPCL 5 21°42’51.22” N 72°31’53.84” E

6. HPCL 6 21°42’25.88” N 72°27’47.83” E

2.4 Bathymetry

The Gulf of Khambhat extends from East & West coasts of Gujarat with a coverage area of more

than 200,000 Ha with a coastal distance of nearly 200km. The area is covered with intertidal mud

flats, creeks, mangroves, salt pans and marsh land. The discharge from Tapti, Narmada, Mahi and

Sabarmati and several other minor rivers joins the gulf with large amount of sediments. Gulf of

Khambhat is the largest intertidal region with spring tide in excess of 8m. The current in the

region exceeds 3 m/sec during spring tide and 2m/sec during neap tide.

Future Jetty

Proposed Jetty


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The bathymetry in the region is typically same from south to north from Petronet LNG jetty

towards the existing Dahej old Port. The mudflat and shallow water extends up to a distance of

approximately 2000m from high tide line. This region is inter-tidal in nature, at low tide the whole

area is exposed, and at high tide it is covered with tidal water.

The seabed elevation beyond this limit is covered with water body even during low tide as seen

from the google maps. The water depth increases to 10m to 15m suddenly and it extends to a

distance of at least another 500m to 600m beyond which the water depth is nearly 20m. This can

be seen from the hydrographic charts of the area as shown in figure 2.5. This means that the jetty

shall be located at the shallow water area at a distance of at least 2000 to 2500m from high water

line so that at all times sufficient water depth will be available for berthing and unloading of

cargo.

Figure 2-5: Bathymetry Area

2.5 Size or Magnitude of Operation

LPG import Jetty (5 MTPA) complete with loading arm facilities, firefighting facilities, electrical

and mechanical equipment, piping and pipelines up to land fall point where in onshore pumping

station and terminal control will be located.

The on shore Dispatch Station at Dahej for pumping LPG received from VLGC (Very large Gas

Carriers) is proposed to be located in the existing government land admeasuring approximately

28.12 Hectare besides the old GMB Port at Dahej. The preliminary layout and equipment


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configurations suggests requirement of approx. 30 acres land for the station along with 4-5 acres

of land for dedicated approach connecting the dispatch station to the jetty approach bund/

trestle.

2.6 Project Description with Process Details

The project consists of following three major work elements:

LPG import Jetty (5 MMTPA capacity) with approach trestle, and all associated facilities

such as loading arms, firefighting facilities, electrical and mechanical equipment,

Piping and pipelines on the Jetty & Trestle up to the proposed Dahej Onshore Dispatch

Station

On shore Dahej Dispatch Station for Pumping LPG towards Vadodara

There is no process involved except loading/unloading of LPG and the transportation the berths

to transit storage and to their destinations from hinterland to transit storage and transports to

berths and loading area.

2.6.1 Jetty Facilities

The proposed LPG import jetty is intended for primarily import of LPG. However, additional

requirements for use by ONGC and other users have also been included. Hence sufficient number of

marine loading arms, manifold and associated piping shall be provided. The layout at the jetty head

is shown in Figure below. A total of 5 loading arms are proposed

1 x 12” for Propane

1 x 12” for Butane

3 x 12” spare (Future loading arm)

The propane and Butane loading arm shall be connected to the blending station through

individual 24” pipeline. In case the blended LPG is imported from vessel, any one of the pipeline

will be used for pumping to the dispatch station and bypass arrangement shall be provided to

connect to LPG booster pump. Sufficient space including design of the structures shall be

provided for future loading arms and pipelines. All pipelines shall be provided with space for

pigging facilities at the jetty.


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Figure 2-6: Facilities at Unloading Platform

Other facilities include fire water curtain, gangway, slop tank, fire monitor towers are also

provided on the platform. The facilities provided at the unloading / loading platform are given

below.

Local control room

Access platform

12” Marine Loading / Unloading Arms

Hydraulic power pack for Maring Loading Arms

Pipelines

Pig Launching system

Telescopic Gangway with Jib Crane

Tower Monitors, Ground Monitor and Jumbo curtain nozzles

Slop collection tanks (RCC) and Slop pumps

Bollards

Fenders and Quick release mooring hooks on dolphins

High mast lights (30m height)

2.6.2 Marine Loading Arm (MLA)

The proposed arrangement of marine loading with access / maintenance platform and envelope

is shown in figure below.


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Figure 2-7 Loading position and operating envelope (HHWS)

The marine loading arms will be fitted with the following as a minimum.

Hydraulically operated quick connect/disconnect coupler (QC/DC)

Emergency release system (ERS) will be of three stages

Individual hydraulic power pack

Storm locking device

Insulating flange

Audio-visual alarm for safety

IP 66 is proposed as degree of protection for all outdoor electrical equipment.

2.6.3 LPG Handling

Liquefied Petroleum Gas (LPG) is a mixture of Propane (C3H8) 30 to 40% and Butane (C4H10) 60

to 70% by volume. The LPG is a mixture of certain light hydrocarbon predominately C3H8 &

C4H10, derived from petroleum & natural gas. These will be at gaseous state at ambient

temperature and pressure, may be condensed to a liquid state at normal ambient temperature

by the application of moderate pressure (12 to 14 kg/cm2g) or by cooling to temperature beyond

their boiling point at ambient pressure and conforming to IS : 4576.

The critical temperature of LPG (highest temperature to retain liquid state) is 97°C for propane

and 152°C for Butane. Similarly, the critical pressure for Propane and Butane are 43 kg/cm2 and

39 kg/cm2 respectively. Critical pressure is the minimum pressure required keep the liquid state.

It is proposed to import LPG using large gas carriers in the range of 40,000 MT to 75,000 MT parcel

size. Two loading arms shall be provided for import of Propane and Butane and three spare slot for


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future purposes (12” each loading arm size) is planned for the design purposes. Two options are

considered at present.

a) The imported propane and butane will be blended using a blending unit provided at the

dispatch station.

b) Import directly the blended LPG from the LPG carrier as an option.

The Propane and Butane will be blended at the dispatch station located at a distance of 7.00 km

from jetty in the vicinity of existing Dahej port backup land. Additional booster pumping facilities

shall be provided at the dispatch station to pump the LPG to the underground cavern located at

Vadodara at 150 km. Hence, Two pipelines (one for propane and one for Butane) are proposed

for the transportation LPG from Jetty to the dispatch Station. However, space for three additional

lines is provision for future use. The overall process flow arrangement is shown figure 4.3. In case

the blended LPG is imported from vessel, any one of the pipeline will be used for pumping to the

dispatch station.

Table 2-1 Typical properties of Propane and Butane


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Figure 2-8 Process Flow Diagram

2.7 Vessel Characteristics

The maximum length, width and draft for these classes of gas carriers are given in Table 3.1. The

berth shall be configured for the vessel length 294m with a maximum draft of 12.3m. Basis past

experience at the site, water depth of 16m shall be available easily at 3km from the shore.

Table 2-2: Vessel Characteristics

Item Gas Carriers

50,000 DWT 70,000 DWT 100,000 DWT

Displacement (MT) 78,000 105,000 144,000

Capacity (MT) 40,000 50,000 75,000

Length Overall (LOA) (m) 237 263 294

Moulded Breadth (m) 37.2 41.2 45.8

Moulded Depth (m) 22.8 25.7 29.2

Loaded Draft (m) 12.3 12.3 12.3 Note: Dimensions considered are from PIANC guidelines (MARCOM WG33).

2.8 Vessel Pumping Capacity

For each product the maximum vessel size expected is provided together with pumping capacity

available in the vessel is provided in Table 2-3.

Table 2-3: Vessel Pumping Capacity

Product Vessel Size Pumping Capacity

LPG 50,000 DWT 1,000 MT/hr

LPG 70,000 DWT 1,200 MT/hr

LPG 100,000 DWT 1,500 MT/hr

2.9 Berth Occupancy

Berth occupancy is an important measure of tech-economic efficiency of the proposed facility.

Typical berth occupancy of 60 to 70% is considered optimum while higher berth occupancy may


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result in waiting time due to unforeseen situations. The berth occupancy shall be calculated to

make sure that the proposed facility can operate and deliver the traffic projection expected for

the business proposal. The calculations indicate that the 5.0 MTPA traffic can be easily achieved.

The preliminary throughput calculations for 5 MTPA is given in Table 2-4.

Table 2-4: Berth Occupancy Estimate

Description LPG carrier

50,000 VLGC 70,000 VLGC 100,000 VLGC

Projected Throughput (MTPA) 5.0 5.0 5.0

Ship Size (Displacement) 50,000 70,000 100,000

Parcel size (Tonnes) 40,000 50,000 75,000 Unloading rate / day (Tonnes / day) 24,000 24,000 24,000

Unloading time (days) 1.67 2.08 3.13

Berthing/De berthing time (days) 0.25 0.25 0.25

Number of ship calls / year 125 100 67

Total berth occupancy days / year 239.6 233.3 225.0

Number of non-operable days / year 65.0 65.0 65.0

Total working days / year 300.0 300.0 300.0

Berth Occupancy 79.9% 77.8% 75.0%

2.10 Methodology

The estimation is divided in following groups,

LPG Import Jetty

Jetty Structure consisting of unloading platform, breasting and mooring dolphins

Approach Trestle

Port craft jetty

Steel catwalk

Fire Water pump house

Substation – jetty

Berth infrastructures (Fenders, Mooring hook etc.,)

Approach bund

Jetty equipment

Firefighting system

Electrical system and Instrumentation

Engineering and Management

Dispatch station & LPG Pipelines

Admin building

Fire pump house

Substation building


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Blending station building

Firewater storage tank

Parking shed

Roadway, fencing, earthwork etc.,

LPG Pipelines from Jetty to Dispatch Station

Dispatch station equipment

Firefighting system for dispatch station

Electrical system and Instrumentation

Engineering and Management.

2.11 Raw Materials required and Quantum

The raw materials are required only for the construction of Jetty & storage facilities

2.12 Resource optimization / recycling

The Proposed project is a construction of jetty and its operation. Therefore, resource

optimization will be mainly in the form of effective use of infrastructure created and optimization

of berth occupancy and utilities and services.

2.13 Water & Power Requirement

(a) Availability of water & source

The water will be sourced locally through approved sources/ govt. department.

(b) Energy / power requirement & Source

Power connection will be taken from Gujarat State Electricity Corporation Limited (GSECL). GSECL

will provide electric power supply through a single feeder overhead line at 66 kV level to the

facility. An outdoor 66 kV switch yard shall be established at the near vicinity of compound wall

near north east corner of the dispatch station premises

Electric power requirements of the jetty & dispatch station shall be met by a single 11 kV power

feeder. Electric power distribution equipment at the jetty shall comprise of 11 kV switchgear

panels, 11 kV / 0.433 kV step down transformers and 415 V Power & Motor Control Centre.

2.14 Quantity of Wastes

Domestic solid waste is estimated to be generated from construction and operation activities.

This will be collected from designated location and segregated into organic and inorganic waste.

The inorganic non-biodegradable will be sold to GPCB authorized vendor for recycling. The

biodegradable waste will be disposed-off according to SHW (Management and Handling) Rules,

2016. No commercial waste shall be generated


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2.15 Manpower Requirement

During the construction phase, services of about 500 Nos. laborers would be hired mostly from

nearby areas. Subsequently, in operation about 50 Nos. of man power shall be employed

directly/indirectly.

2.16 Preliminary Cost Estimate Summary

The preliminary project cost for Dahej LPG jetty is estimated based on preliminary design. The

cost for each work elements are given below:

Jetty with Approach Trestle Option 2) = Rs 1183 Crores

Dispatch Station and Facilities = Rs 150 Crores


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3 SITE ANALYSIS

3.1 Connectivity

The site is easily accessible by a village road from Gujarat State Highway SH 206 [POb] – 2.9 km

(SE). Nearest Railway station is Bharuch Junction – 47 km (E).

3.2 Land Ownership

The ownership of land is in possession with Government, near to the land fall point admeasuring

approx. 35 acres has been requested for allotment for approach to the jetty trestle and

construction of on-shore pumping & dispatch station.

The land surface is covered with mud flat and natural vegetation. The existing ground level in the

proposed area is around -1.0m to 2m above chart datum.

3.3 Topography

The seashore in this area is generally flat. The land surface is covered with natural vegetation and

mud flat. The existing ground level in the proposed area is around -1.0m to 2m above chart

datum. Observations can be made based on site visit data.

(a) The proposed area has natural flora to an extent of 600m to 700m from the high water line

(b) The inter-tidal zone extends to a distance of 2000m to 2250m from the high water line.

3.4 Soil Profile

Based on the available information from the neighboring facility, following soil layers have been

assumed to be present at the proposed HPCL jetty location and along the approach trestle.

Table 3-1: Soil Parameters for approach trestle zone A, B

S.No Soil Description Soil Profile

elevation (m) Layer

Thickness

Assumed soil parameters

ᶲ / Cu

(Deg or kPa)

ꙋ (kN / m3)

1. Medium Dense sand 5.70 to 4.20 1.50 30 19.0

2. Silty clay 4.20 to - 3.15 7.35 170 19.0

3. Stiff clay - 3.15 to -19.0 15.85 200 19.0

4. Dense sand - 19.0 to -35.0 16.0 35 19.5

5. Very stiff clay - 35.0 to -64.0 29.0 38 20.0

Table 3-2: Soil parameters for Approach zone C and Jetty

S.No Soil Description Soil Profile

elevation (m) Layer

Thickness

Assumed soil parameters

ᶲ / Cu

(Deg or kPa)

ꙋ (kN / m3)

1. Dense sand -16.0 to -19.0 3 35 19.5

2. Medium Dense sand -19.0 to -22.0 3 30 19.0

3. Dense sand -22.0 to -40.0 18.0 38 20.0

4. Very Dense sand -40.0 to -67.0 27.0 38 20.0


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3.5 Climatic Conditions

The environmental conditions described here under have been based on in-house data and that

procured from the Indian Metrological Department (IMD). Wherever insufficient information was

available, expert judgments have been made. It will be necessary to perform model testing and

detailed analysis at the design phase of the project to confirm the assumed data.

The climate in the region has a typical monsoon character. Two monsoons dominate the climate

- the southwestern summer monsoon and the northeastern winter monsoon. The summer

monsoon starts around the beginning of June and holds on until September. The northeast

monsoon starts by the latter half of October and lasts until December. The summer monsoon is

stronger than the winter monsoon and the months between both monsoons form a transition

period of calmer weather. Storms occur particularly in autumn months.

3.6 Winds

From the compilation of wind parameters, it is observed that the wind speeds are high during

the month of May, June, July, August. Wind speeds are found to be low during the month of

February. During the rest of months, i.e. January, March, April and September to December the

wind speed is moderate. The details of the design wind speed arrived by the hind casting

database are given in Table 3-3.

Figure 3-1: Annual wind rose diagram at jetty head

Table 3-3: Wind parameters

S.No Return Period (Yr) Design wind (m/s)

1. 1 13.5

2. 50 27.0

3. 100 29.8

3.7 Rainfall

The total annual average rainfall in the Bharuch district for the last four years is 582 mm. Majority

of the rainfall is received during southwest monsoon in the month of June, July, August and

September. There is practically no rainfall from December to March. The southwest monsoon


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contributes about 75% of the average annual rainfall of about 600 mm. The highest rainfall is

reported for the month of July, which often forms about 20 to 25% of the total rainfall.

3.8 Temperature and humidity

Variation in maximum temperature are observed throughout the year, as it ranges from 29.6°C

to 39.2°C. The minimum temperatures varied from 12.3°C to 27.1°C. April and May are the

hottest months of the year with a mean maximum temperature of about 40° C recorded. January

is the coldest month with mean minimum temperature of about 13º C.

The area experiences high relative humidity. The average relative humidity varies from the lowest

of 25% in February to the highest of 82% during August. The monthly average humidity is lowest

in February (25%) and highest in August (82%).

3.9 Visibility

Visibility at sea is good throughout the year, and fog is occasional. Reduction in visibility is mostly

due to heavy rainfall during monsoon. Generally, visibility in the region is greater than 10km for

an average of 310 days in a year.

3.10 Tide Levels

The tide and storm surge value for the Dahej site. The tides at Dahej is semidiurnal.

S.No Description Tidal levels with respect to CD

1. Highest Astronomical Tide (HAT) +10.8m

2. Highest High water spring (HHWS) +10.2m

3. Mean High water spring (MHWS) +8.8m

4. Mean High water Neap (MHWN) +7.1m

5. Mean Sea Level (MSL) +5.1m

6. Mean Low water Neap (MLWN) +1.8m

7. Mean Low water Spring(MLWS) +0.9m

8. Lowest Low water Spring (LLWS) +0.7m

9. Lowest Astronomical Tide (LAT) -1.0m

3.11 Wave Parameters

The wave climate in the Gulf of Khambhat is more influenced by the monsoon. The project site is

located 12 km upstream and connected by shallow depths.

From wave transformation study, it is observed that the significant wave height remains less than

1.5 m for 95% times. The peak wave period remains between 2 and 8 s for 78 % of times. The

predominant wave direction remains between 180Â° and 225Â° for 80% of times. The wave

activity is considerably more during the southwest monsoon period particularly between June to

September.


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3.12 Cyclonic Storms

Cyclonic storms are not very common in west coast and few storms of different intensity have

crossed the project site in the past. Information on the crossing of cyclonic storms in the Gulf of

Khambhat were collected from various sources including Indian Meteorological Department

(IMD), Mumbai. The maximum wind speeds during these storms have been estimated to be

between 90 and 200 km/hr. Most of these storms occur during the months of October -

December with few occurring during the month of June and September.

3.13 Existing land use pattern

Existing Land use is coastal region with natural flora, vegetation and saltpan.

3.14 Existing Infrastructure

Communication facilities such as telephone, tele-fax and Internet are not available in vicinity of

the proposed area.

3.15 Social Infrastructure available

The proposed location is about 4km from village where habitations, institutional, medical

facilities is available.


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4 PLANNING (BRIEF)

4.1 Planning Concept

Jetty: The proposed LPG import jetty is intended for primarily import of LPG. However, additional

requirements for use by ONGC and other users have also been included. Hence sufficient number

of marine loading arms, manifold and associated piping shall be provided. The layout at the jetty

head is shown in figure-4. A total of 5 loading arms are proposed.

1 x 12” for Propane

1 x 12” for Butane

3 x 12” spare (Future loading arm)

The propane and Butane loading arm shall be connected to the blending station through

individual 24” pipeline. In case the blended LPG is imported from vessel, any one of the pipeline

will be used for pumping to the dispatch station and bypass arrangement shall be provided to

connect to LPG booster pump. Sufficient space including design of the structures shall be

provided for future loading arms and pipelines. All pipelines shall be provided with space for

pigging facilities at the jetty.

Dispatch Station: The proposed dispatch station is located on the space adjacent to existing Old

Dahej Port. The overall dimension of the dispatch station is 125m x 75m and the total area is 2.32

Acre. The access to the dispatch station is north facing and west facing direction.

The 24” propane and butane pipelines from jetty are terminated at the blending station in

dispatch station. These two pipelines are connected to a blending unit in the blending station and

the blended LPG is pumped using booster pump and transported through a 24” pipeline to

Storage Facility in Dahej and subsequently to Vadodara which is located approximately at 150 km

from Dahej.

4.2 Population Projection

The population projection for the proposed project is only related to direct and indirect

employment generation. In construction stage, services of about 500 Nos. laborers would be

hired mostly from nearby areas. Subsequently, in operation about 100 Nos. of man power shall

be employed directly/indirectly.

4.3 Land use planning

The land will be utilized for LPG facilities of which 33% will be left for Greenbelt. Remaining plot

area shall be designed for various facilities ensuring minimum inter-distances between the

facilities as mandated by PESO, OISD and PNGRB regulations for Oil & Gas Installations.


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4.4 Assessment of infrastructure Demand

The Infrastructure needs are assessed with respect to LPG demand and proposed to developed

in phases as per need. HPCL would like to develop the Dahej jetty on an EPC Turnkey basis as it

would yield optimum and economical results.

4.5 Amenities / Facilities

All infrastructure facilities such as education, health facilities and other social facilities are

adequate at district headquarter which site makes the region adequate in amenities.

4.6 Work Elements and Scope

The development of LPG jetty includes the following work elements.

Construction of approach trestle and Jetty head

Fire fighting facilities

Installation of marine loading arms, telescopic gangway.

Laying LPG and utility pipe lines

Facilities to combat and contain oil spills in the sea

Construction of On-shore Dispatch Station


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5 PROPOSED INFRASTRUCTURE

5.1 Industrial Area (Processing Area)

The proposed LPG import jetty shall be developed for a maximum throughput of 5 MMTPA.

5.2 Residential Area (Non – Processing Area)

There is no proposed residential area as part of this project.

5.3 Green belt

Green belt will be provided as per specified norms.

5.4 Social Infrastructure

HPCL has well-defined CSR policy to Carryout social development and welfare measures in the

surrounding villages. Under CSR activity HPCL will initiate community development projects, in

the fields of health, education and environmental preservation, in the study area around the

terminal lease area.

HPCL’s CSR reaffirms the continuing commitment of corporation toward societal development.

The key focus areas are in the fields of Child Care, Education, Health Care, Skill Development &

Community Development, positively impacting the lives of less privileged. The overall spend on

CSR activities was Rs. 182 crore during 2019-20.

5.5 Connectivity

Transport of personnel/material during construction phase will be done by existing roads only as

the site is well connected with existing roadways.

5.6 Drinking Water management

The drinking water shall be sourced through local approved sources/ govt. department. The

required water quantity is 2-3 KLD.

5.7 Sewerage System

The project does not generate any process effluent. Effluent from human uses and cleaning

activities will be released after proper treatment.

5.8 Industrial Waste Management

There is no industrial waste except waste water and solid waste generated from this project. The

waste water shall be treated in sewerage treatment plant (STP).

5.9 Solid waste management

Domestic solid waste is estimated to be generated from construction and operation activities.

This will be collected from designated location and segregated into organic and inorganic waste.

The inorganic non-biodegradable will be sold to GPCB authorized vendor for recycling. The


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biodegradable waste will be disposed-off according to SHW (Management and Handling) Rules,

2016. No commercial waste shall be generated


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6 Rehabilitation & Resettlement (R&R) PLAN

As there is no rehabilitation or resettlement of people, there is no need for any plan for R & R

under govt policy.


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7 PROJECT SCHEDULE AND COST ESTIMATES

7.1 Start of Construction & Completion

The bar chart the project schedule is given below

7.2 Estimated Project Cost

The preliminary project cost for Dahej LPG jetty is estimated based on preliminary design. The

cost for each work elements are given below:

Jetty with Approach Trestle (Option 2) = Rs 1183 Crores

Dispatch Station and Facilities = Rs 150 Crores


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8 ANALYSIS OF PROPOSAL & RECOMMENDATIONS

8.1 Financial Assessment

Based on the preliminary financial assessment the project benefits are,

i. To HPCL

Increased LPG handling capacity

Earnings in the form revenue share

Increase in revenue operations of port due to traffic handling

Reducing congestion at other jetties

ii. To Local community

Indirect economic activity for nearby areas

More employment opportunities for local people.

8.2 Social Benefit

However, apart from the cost-benefit analysis from economic considerations, the project has

considerable benefits from the point of view of social benefit analysis. The proposed project will

have major impact on social and economic up liftment of the region by overall improvement in

living standard through creation of new jobs, increase in volume of general trade, general

improvement in infrastructural facility with better transport and communication network. The

Project shall feed the mega infrastructure pipeline from Kandla to Gorakhpur aimed at bringing

cleaner and greener LPG fuel to millions of Indian homes.


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9 CONCLUSION

As project is viable from techno-economic considerations as well as social aspects. The project is

recommended for implementation after completing necessary formalities with respect to various

permissions from statutory and local bodies.

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