ABC Jakarta Small
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Transcript of ABC Jakarta Small
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7/26/2019 ABC Jakarta Small
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Analysis BehindCasing
James Hemingway
New Technology Advisor
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CHFR ToolstringTelemetry
Electronics
Insulating joint
Top current
electrode
Arm section
Hydraulics
Bottomcurrent
electrode 0.0m
13.0m
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CHFR Principle - Two Steps
Rt
Rc
I I
Measure
Rt Formation ResistivityRc Casing Resistance
K Tool factor
Calibrate
Current Source
I
V1
V2
VoRc
and Rc
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RxoRt
Rm
Rm
Rxo
Rt
Laterolog
Laterolog
LaterologLaterologR
esponse
Response
Response
Response
Induction
Response
Induction
Response
Induction
Response
Induction
Response
Logging ToolLogging ToolLogging ToolLogging Tool
Borehole/Borehole/Borehole/Borehole/
CasingCasingCasingCasing
UninvadedUninvadedUninvadedUninvaded ZoneZoneZoneZone
Invaded Zone/Invaded Zone/Invaded Zone/Invaded Zone/
Cement/Cement/Cement/Cement/RxoRxoRxoRxo
Laterolog Physics
CHFRCHFRCHFRCHFR
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CHFR Major Specifications Tool dimensions 3-3/8, (2 1/8 as of 2004)
Pressure/Temperature 15000psi / 150C (300F)
Casing O.D. Range 4.5 to 9-5/8( 2 7/8 for slim
tool)
Maximum Well Deviation None - Use standoffs above
70 deg
Stationary measurement ~ 1 - 5 minutes
Resistivity range ~ 1 - >100 Ohmm (use tool
planner)(depends on Csg wt, #cycles, > 300 Ohmm in Indonesia)
Vertical Resolution 4 feet (similar to LLD)
Depth of investigation ~3+ feet (similar to deep
laterolog)
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1600BWPD to 300BOPD after CHFR
SPE 76730SPE 76730SPE 76730SPE 76730
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Waterentries, lowresistivity
Oil entries,highresistivity
CHFR / PLT Data
(SPE 71715 AGIP North Sea)
3 300
CHFR ILD
1 0
CHFRGR
0 3000
OILFLOW
0 5000
WATERFLOW
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Gas
Waterbreakthrough
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Multi-layered reservoir
Oil production dropped to4bopd
Water-cut of 99 %.
Remediation based onCHFR-Plus results:
Bridge-plug set at xx96 ft.
Results:
Oil production increased
to 970970970970 bopd
Water-cut reduced to 32323232%.the Bridge-plug will be set
later at xx50 ft.