Roto-Slide Steerable Mud Motor

Gary L. Smith

Benefits

•Cost effective

•Mature, proven technology

• Operational simplicity (surface control)

• Lower Lost in Hole (LIH) cost

• Broad range of available bits

Roto-Slide Steerable Mud Motor

2015 All Rights Reserved 5907 Laguna Falls Ct., Houston, TX 77041

• 6.125” to 6.75” bit size• Effective WOB • No loss of ROP while sliding • No tortuosity or drag issues • Excellent hole cleaning

MWD Tool(Conventional)

Drill Pipe(Continuous Rotation)

Reverse PDM(Counter clockwise rotation)

Steerable Mud Motor(Conventional)

Benefits

•Significantly higher ROP

• Improved borehole quality

Potential issues

•Downlink commands•Mechanical/Electrical complexity•Reduced dogleg capability• Lower reliability•High LIH Insurance•Higher Daily Cost

Rotary Steerable Systems RSS


Electro Mechanical

Non-Rotating Housing

Offset Mechanism

Directional Gamma MWD Tool

Downlink Receiver

Sensors

Roto-Slide Dual Motor Technology

2015 All Rights Reserved - IEC Systems 5907 Laguna Falls Ct., Houston, TX 77041


Bent Housing

Near-Bit Stabilizer


Medium Torque, Low Speed Rotor/Stator


High Torque, Low Speed Rotor/Stator

NO ROTATIONZero Top Drive RPM

Drill Pipe RPM <<< Reverse PDM RPM



2015 All Rights Reserved - IEC Systems

SLIDING MODEMatch Top Drive RPM to Neutral Point

Drill Pipe RPM = Reverse PDM RPM

5907 Laguna Falls Ct., Houston, TX 77041


Bent Housing

Near-Bit Stabilizer









Bent Housing

Near-Bit Stabilizer






ROTATING MODEIncrease Top Drive RPM above Neutral Point

Drill Pipe RPM > Reverse PDM RPM

• Continuous Rotation of drill pipe while sliding

• Maintains high ROP without losses due to sliding

• Improved hole quality, automatic course changes as needed

• Simplicity of steerable mud motors

• Priced between Conventional and Rotary Steerable Systems

• Lower complexity

• Lower LIH than RSS (tool capital cost)

• Enables closed loop drilling automation system

• Completely computer driven, no driller intervention required

• No downlink required – all toolface corrections made at top drive

• Requires integration with rig VFD control systems

Directional Drilling – Roto-Slide Motors


Integrated MWDTool

Bent Housing

Near-Bit Stabilizer

PDM Motor

Counter Rotation PDM Motor

Drill Pipe

• Extremely precise control of motor speed and torque• Highly responsive automatic driller

• Increased rate of penetration

• Extended bit life

• Reduced non-productive time

• Consistent and safe operations

• Automation of repetitive tasks• Improved operational efficiency

• Reduced operating cost

• Improved power factor increases fuel efficiency

• Reduced long term maintenance costs

AC Variable Frequency Drive (VFD) Rigs


Automatic Directional Driller

2015 All Rights Reserved - IEC Systems

MWD Downhole RPMMWD Highside Toolface

Request Control TD

MWD Telemetry

Target RPM

MWD & Steerable Motor

MWD Decoder

Drilling Rig

Give Control TDSet TD RPM to SPRPM01

Receive Actual TD RPM

Initiate Auto Drill System

5907 Laguna Falls Ct., Houston, TX 77041

Black Box

Powered by DRILL-IT©


Warrior Technology’s DRILL-IT software integrates with Roto-Slide to complete the Automated Closed Loop Directional Drilling System

Real Time • Communications with MWD / Roto-Slide• Directional drilling performance analysis • Steering Directives• Slips-to-Slips hands free directional driller

Prototype Flow Loop


• Dual mud motor system with non-rotating sensors.

• Operational principle involves the following components:

• Upper reverse rotation, positive displacement mud motor (PDM) power section.

• Measurement-while-drilling (MWD) tool.

• Lower, Steerable Mud Motor and drill bit.

• AC VFD Top Drive RPM control that offsets the upper reverse PDM RPM

Shell Patent – Exclusive License


Gary L. Smith

Roto-Slide Steerable Mud Motor

Documents

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