Be a Differentiator in Management of Well Integrity and Risk for Deepwater O&G Wells

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1 How Reliability Data and Software Solutions Can Be a Differentiator in Management of Well Integrity and Risk for Deepwater O&G Wells Presented by Einar Molnes, CTO and Founder einar.molnes@exprosoft.com INTSOK 2014 N i ti D t C f INTSOK 2014 Navigating Deepwater Conference Norris Conference Centre, Houston, February 26 th, 2014

2 Presentation outline 1) Deepwater Challenges 2) Reliability Data Learning from History 3) Well Condition Monitoring and Analytics: Understanding the Current Well Status and Predicting Future Behaviour 4) Case studies 5) Conclusions

3 The Deepwater Challenge High cost associated with downhole equipment failures and associated interventionsentions Increased risk of oil spill/gas leaks during interventions Design for reliability: Incentive is there to put more money up-front to minimize interventions during productive lifetime of wells Design for real-time data acquisition from the well: early diagnostics and mitigation minimizes downtime

4 Understanding and learning from history

5 Reliability Data What is It? Exposurep data: Equipment Data w/service time by Equipment Item Stressors/environmental data Failure Data: Increasing value of data - Failed item/date of failure - Failure Mode - Failure Effect (local, knock-on) - Suspected Cause of Failure - Information on Repair/Remedial Action - Root Cause Failure Analysis(RCFA)

6 Mean time to failure (MTTF) Failure rate Survival probability KPIs Based on Reliability Data Reliability Based KPIs Probability of failure on demand (PFD) Safety integrity level (SIL) Mean residual life (MRL) Blowout probability level (BPL) and blowout escalation risk (BER) Life cycle cost/life cycle profit (LCC/LCP)

7 Master valve configuration? Reliability data - applications Horizontal or vertical Xmas tree? Blowout risk? Maintenance philosophy for well components? Can SCSSV be eliminated? Well risk after barrier failure? Tubing and casing integrity? Effect of deep set plug on integrity of temporary abandoned d wells? Well intervention frequency and OPEX? Dual SCSSV configuration? What is the risk associated with gas lift operations? Optimum test frequency for barrier valves? Benchmarking of manufacturers and operators?

8 Real-time data acquisition What is the health condition of my well? Are my well pressures/temperatures within acceptable limits? Are my well safety barriers working properly? Am I moving towards a failure scenario in my well? Is it safe to continue production from my well or do I need to shut-in the well and intervene?

(DEA) Europe, March 2010. Data compares main challenges faced by operators in managing well performance.

9 Industry challenges Integrity Management Challenges Time to solve problem Competency Equipment availability Gathering & analyzing data 1) SPE North Sea Well integrity forum, Nov 2009 & Drilling Engineering Association (DEA) Europe, March Data compares main challenges faced by operators in managing well performance operator participants. Improving efficiency in gathering and analysis of data represent the target area for WellMaster Software

10 Well Monitoring Monitoring Graphs Monitoring Temperature Monitoring Operations Monitoring Valve pos. Completion Annulus Completion Tubular System admin Monitoring Operations Display readings and history data for operational parameters: Production / Injection GOR Gas production Oil production Water injection i ph H2S O2 CO2 Water Cut Sand production Wellhead/ Annuli Gas Lift Wellhead movement

WellMaster Software Suite WellMaster IMS

system which helps oil and gas operators

reliability, quantify risk, benchmark the

11 WellMaster Software Suite WellMaster IMS is a user friendly and configurable system which helps oil and gas operators maintain asset integrity. WellMaster RMS is a database driven software to track downhole equipment reliability, quantify risk, benchmark the operators wells /equipment and support well design. Key features: Monitor key performance indicators Establish early warning systems Prioritize well management Preventative maintenance logging Risk rank assistance Failure register Customized reporting NORSOK compliance Benchmarking: Mean time to failure (MTTF) Survival probability Mean time between workovers (MTBW) Forecasting: Mean residual life (MRL) Optimum replacement frequency Test frequency Probability of failure on demand (PFD)

12 What does WellMaster RMS do for the operator? Life Cycle Phase Benefit Field lddevelopment Select well design and manage financial i risk: Balance CAPEX vs. OPEX Planning for alternative well designs. Find required number of wells to meet production targets for delivery contracts. Benchmark and select most cost efficient i downhole equipment. Production phase Quantify risk for wells which develop failures: can wells be safely produced rather than being overhauled? Increasing productive time of wells. Achieve additional service life from equipment while ensuring safety is maintained. Describe risk associated with extending lifetime of wells/equipment beyond original design life. Minimize unnecessary interventions. Optimize well maintenance strategy: demonstrate effect of corrective vs. preventative replacement of downhole equipment.

13 30 years of well equipment reliability data Yearly well reliability data & KPIs from 2012

$fracturing and lift gas$ casing failure scenarios and

14 Case Study 1: Lifetime extension for gas lifted production wells(qra) Background: Multiple gas lifted producers with compromized production casing Risk of casing external formation fracturing and lift gas return to platform Examined casing failure scenarios and resulting leak path/rates Formation sands Results: Defined acceptance criteria and mitigation for each well Continued production allowed for several wells subject to implementation of mitigation

15 Case Study 2: Predicting intervention frequency and OPEX to optimize selection of field development options Case Study 1: OPEX study for new field development

16 Conclusions Reliability and integrity data and KPIs can be used for some very powerful decisions in the upstream oil & gas sector Embedding reliability and integrity data into software/database tools provides the ability to manage large well inventories and data uncertainties ti Manage your data! Ensure quality and completeness of data through involvement and motivation of operational staff Learn from your well history to plan the future and optimize well uptime!

17 Contact Details Thank you for your attention! Come visit us at the ExproSoft exhibition in the Magnolia room for further discussions! Contact person, Houston: Chris McPherson, Sales Manager Americas, Mobile:

Case Histories of Life Cycle Well Integrity Management Using iwit Software

Case Histories of Life Cycle Well Integrity Management Using iwit Software SPE London, Nov 29 th, 2011 Liane Smith and Ged Lunt, Intetech Ltd. INTEGRITY TECHNOLOGY Focus: - on integrity in design work