Data Mining Operator Benchmarking Studies for Artificial Lift Statistics, Technology Trends and Equipment Details Wonuola Scott & Aaron Duffus: Rushmore Reviews Cameron Laing: Laing Engineering & Training Services Ltd. 17 th June 2014
Benchmarking The prime objective of benchmarking is to understand those practices which will provide a competitive advantage in the market place; target setting is secondary. Paul Allaire Chairman, Xerox Corporation
Reviewing Best Practice Every day that a better idea goes unused is a lost opportunity! We have to share more and faster to drive learning and improvement. We emphasize shopping for knowledge - outside rather than inventing everything ourselves. Ken Derr Former CEO, Chevron
Rushmore Reviews Drilling Performance Review, since 1989 Completions Performance Review, since 1994 Well Abandonment Performance Review, since 2008 Well Interventions Performance Review, since 2011 Shale Performance Review, since 2012 Data from hundreds of Operating Companies in 100 countries Over 52,000 DPR wells & 12,000 CPR completions WellView TM / OpenWells TM / DataNet TM etc. compatible for data input Web based search & analysis tools
Completions Review - Data & Uses 143 Data Items & Text Comments covering Well Description Depths /Temp /Press /Angle/ Multilaterals/Zonal Isolation/ PDHG /Compl fluid/ Csg-Liner-Tbg- OH/Perforation Conveyance /Materials /H 2 S-CO 2 /Sand Control Equipt/Tree type/ Artificial Lift / Workover Reasons & remedial ops/stimulation & other ops/ New Technology etc. Operational Timing Activity time / Non-productive time / WOW time Well Cost Total Cost / Overheads / Tangibles Completion Diagram Some Time/Event Plots Used for Planning / Timing /Budgets /Economics / Performance Comparison / Experience Sharing / Peer to Peer Contacts / Ideas!
Well count Norway, Denmark & UK Producing Oil Wells with AL Number of Completions per Year Platform and Subsea 2013 data not yet fully published Platform Subsea
Significance of Artificial Lift 80% of UK Subsea Well Completions are designed for Artificial Lift 67% of North Sea Offshore Completions are designed for Artificial Lift >75% in UK and ~50% in Norway No UK/Norway government statistics on Artificial Lifted Production no special R&D emphasis.
Artificial Lift Types in UK/NO/DK 15% ESP / 80% Gas Lift / 5% HSP
Rushmore Reviews Database Global Offshore Artificial Lift Types UK/NO/DK Rest of the world Other, 0.32% GL, 80.19%
Rushmore Reviews Database Global Offshore Artificial Lift Types UK/NO/DK Rest of the world Other, 0.32% (Platform) ESP (Subsea), 2.70% GL, 80.19%
Rushmore Reviews Database Global Lift Types Offshore Land
Combinations & Innovations found in the Review data ESP with Gas Lift back-up UK subsea / West Africa platform Gas Lift with Hydraulic Jet Pump option (Pakistan land ) Deepwater wells with lift on seafloor (ESP/Multi-phase pump) Auto Gas Cap Gas Lift (hydraulic control) subsea Water Injectors / Gas Wells with AL (ESP/GL/HJP) for clean up / back flow Can-K Twin Screw PDP (ESP motor drive)
Innovative AL Completion Diagrams
ESP Equipment Trends: Last 30 UK Offshore ESP Completions Location 21 platform & 9 subsea (30%) 4 Operators Chevron: 11 / Ithaca: 10 / EnQuest: 7 / Talisman-Sinopec: 2 Subsea: Ithaca:5 / Enquest:2 / Talisman-Sinopec: 2 Dual ESPs 15 (50%) / 6 Platform & 9 Subsea (100% of Subsea ESP completions) Pod ESPs 23 (77%) / 16 Platform & 7 Subsea (78% of Subsea ESP completions) 13 Dual Pods / 6 Platform & 7 Subsea Workovers 15 W/O: 14 Platform & 1 Subsea Average time since last installation: 3.3 years Average time since last installation (excluding unique cases*): 1.5 years Subsea well time since last installation: ~2 years * two platform well re-entries 12 & 15 years after last installation
Example ESP Completion Diagrams
Gas Lift Equipment Trends: Last 30 UK Offshore GL Completions Location 13 Platform & 17 Subsea (57%) Annular Safety Valves 3 Platform (23%) & 0 Subsea 1 Dual Tubing Hanger (no ASV) Number of Mandrels Maximum: 7 10 or more seen in older North Sea Completions Average: 2.75 Dual Gas Lift Completions None since original Union Oil Heather completions?
Gas Lift Equipment
Well Interventions Review New Review with 130+ well interventions and growing 7 interventions involved gas lift work - at least 1 GLV change out required multiple runs 1 intervention was related to confirming a successful switch between dual ESPs
Well count Completion Depth ESP vs Gas Lift
Temperature Range for New Equipment Design
Operator Benchmarking Completion Running Time
Operator Benchmarking Non-Productive Time (NPT)
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