Mitigating Formation Evaluation Riskpetroleumclub.ro/downloads/Seeupstream/2014/Fabric... · •...
Transcript of Mitigating Formation Evaluation Riskpetroleumclub.ro/downloads/Seeupstream/2014/Fabric... · •...
© 2012 Weatherford. All rights reserved. © 2012 Weatherford. All rights reserved.
Mitigating Formation Evaluation Risk: "Logging Wells Which Were Deemed Impossible to Log Before"
Fabricio Cardenas Wireline BD Manager Eastern Europe April 2014
© 2012 Weatherford. All rights reserved. © 2012 Weatherford. All rights reserved.
Topics
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Mitigating Associated Risk Associated with Wireline Services
AssureTM Conveyance Options
Case Studies
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The Case for Efficient Conveyance
• Efficient Conveyance is actually about mitigating risks in today’s drilling environment.
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Mitigating Associated Risks of Formation Evaluation.
6.25 in. (159 mm) borehole
3.98 in. (101 mm)
2.25 in. (57 mm)
Conventional tools in 6.25-in (159 mm)
hole (2.25 in. from tool to wall)
Compact™ tools in 6.25-in (159 mm)
hole (4 in. from tool to wall)
Competitor’s triple combo
(38 ft x 4.50 in.) (11.6 m x 114 mm)
Competitor’s old triple combo
(90 ft x 4.50 in.) (27.4 m x 114 mm)
Compact triple combo
(29 ft x 2.25 in.) (8.8 m x 57.2 mm)
6.25 in. (159 mm) borehole
3.98 in. (101 mm)
2.25 in. (57 mm)
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Mitigating Associated Risks of Formation Evaluation.
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De-Risking Formation Evaluation
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Topics
7
Mitigating Associated Risk Associated with Wireline Services
AssureTM Conveyance Options
Case Studies
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Assure Conveyance Options
Achieve your formation evaluation objectives,
Regardless of complex wellbore geometry
With or without wireline
including imaging and pressure/sampling
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Memory Based Well Logging
Compact Well Shuttle
•Tools are protected inside Garage Drillpipe and deployed at reaching total depth
• Without Wireline Drillpipe can be rotated hence memory logs can be combined with other operations
Compact Drop Off
•Drillpipes are dressed with a No-Go arrangement and lowered to total depth.
• Memory tools are then deployed on Wireline at No-Go and pulled up with Drillpipe
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Assure™ Conveyance Options
• The key to overcome limitations and mitigate risk to guarantee logging is to eliminate Wireline
• Benefits:
– Acquisition of high-value data in wells which were deemed impossible to log before
– Better Well Control during operation. Drillers can rotate and circulat
– Freedom from constraints on well construction
– Reduced risk of no/partial logs and stuck/lost tools
© 2012 Weatherford. All rights reserved. © 2012 Weatherford. All rights reserved.
Topics
14
Mitigating Associated Risk Associated with Wireline Services
AssureTM Conveyance Options
Case Studies
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Case Studies Eastern Europe
Case Study: Economic and Safe Alternative to LWD in Challenging Field (Ukraine)
Case Study – Compact™ Drop-off Acquires Crucial Formation Data (Petrom)
Case Study: Logging objectives achieved after logging was cancelled (Bulgaria)
• Costs and risk threatened the economics of a horizontal drilling development program in eastern Ukraine
• WFT’s PrecisionPulse MWD system and Compact Well Shuttle technique was used to successfully achieve Well and Logging Objectives
• Standard wireline deployed tools bridged @ 4106m.
• After several failed attempts, logging was cancelled.
• TDL logging successful. Recommendation letter from client
• Significant rig time savings by navigating the
tools past well obstructions without requiring a
separate cleanup trip.
• CDO operation took only 9 hours of rig time
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Conclusions
• Weatherford’s unique Compact and Assure Conveyance options deliver a wide range of formation evaluation answers in wells where no one else can log
• Case studies in every region document that we reduce operating costs and acquire high-quality data in holes deemed “impossible” by others