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. 17th June 2014 The prime objective of benchmarking is to understand those practices which will provide a competitive advantage in the market place; target setting is secondary.

Benchmarking Paul Allaire Chairman, Xerox Corporation Reviewing Best Practice Every day that a better idea goes unused is alost opportunity! We have to share more and faster to drive learning and improvement. - We emphasize shopping for knowledge outsiderather 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 WellViewTM / OpenWellsTM / DataNetTM 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 /H2S-CO2/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! Norway, Denmark & UK Producing Oil Wells with AL Number of Completions per Year Platform and Subsea 2013 data not yet fully published Subsea Platform Well count 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 DatabaseGlobal Offshore Artificial Lift Types UK/NO/DK GL, 80.19% Rest of the world Other, 0.32% Rushmore Reviews DatabaseGlobal Offshore Artificial Lift Types GL, 80.19% UK/NO/DKRest of the world (Platform)ESP (Subsea), 2.70% Other, 0.32% Rushmore Reviews DatabaseGlobal Lift Types OffshoreLand Combinations & Innovationsfound 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 Completion Depth ESP vs Gas LiftWell count Temperature Range for New Equipment DesignOperator Benchmarking Completion Running TimeOperator Benchmarking Non-Productive Time (NPT)www.RushmoreReviews.comwww.letstrain.co.uk Questions?