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 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

– 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

co

un

t

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

GL, 80.19%

Rest of the world Other, 0.32%

Rushmore Reviews Database Global Offshore Artificial Lift Types

GL, 80.19%

UK/NO/DK Rest of the world

(Platform) ESP (Subsea), 2.70%

Other, 0.32%

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

Completion Depth ESP vs Gas Lift

Well

co

un

t

Temperature Range for New Equipment Design

Operator Benchmarking Completion Running Time

Operator Benchmarking Non-Productive Time (NPT)

www.RushmoreReviews.com www.letstrain.co.uk

Questions?