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Intelligent Gas Lift Peter Watson, Camcon Oil Limited 37 th Gas-Lift Workshop, Houston February 5 th - 6 th, 2014 This presentation is the property of.

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Presentation on theme: "Intelligent Gas Lift Peter Watson, Camcon Oil Limited 37 th Gas-Lift Workshop, Houston February 5 th - 6 th, 2014 This presentation is the property of."— Presentation transcript:

1 Intelligent Gas Lift Peter Watson, Camcon Oil Limited 37 th Gas-Lift Workshop, Houston February 5 th - 6 th, 2014 This presentation is the property of the author(s) and his/her/their company(ies). It may not be used for any purpose other than viewing by Workshop attendees without the expressed written permission of the author(s). Cameron Laing, LETS Limited

2 Intelligent Gas Lift – Why? Feb. 3 rd – 7 th, 2014 2 2014 Gas Lift Workshop Weak equipment design Weak & inflexible operational design Requires intervention Frequent wire-line problems OK for depletion drive reservoirs Current 1950s Technology is no longer fit for purpose

3 North Sea sub-sea wells - example data Feb. 3 rd – 7 th, 2014 3 2014 Gas Lift Workshop ~$15m per intervention (semi-sub) 1 well lost completely 90+% valves failed combined TRO re-test and reverse flow check test Only 1 passed TRO test Well fluids in dome / de-pressured dome / cracked mandrel / bent latches / loose latches / one field installed latch not locked in mandrel 13 valves pulled from 4 wells, < 3 years old

4 Conventional Valve Operating Limits Feb. 3 rd – 7 th, 2014 4 2014 Gas Lift Workshop Max CHP IPO Re-Opening Stability Limit

5 Injection Rate Flexibility Feb. 3 rd – 7 th, 2014 5 2014 Gas Lift Workshop 3mm Port 4.5mm Port

6 Intelligent Gas Lift – Flexibility Feb. 3 rd – 7 th, 2014 6 2014 Gas Lift Workshop Ideal depth of injection changes Optimum gas allocation changes Recognised in the original 1954 retrievable valve patent Continuous injection through IPO valve not recommended by vendors but implied in designs for many sub-sea wells Flexible designs produce more oil Well Inflow Performance changes over time

7 What now ? Feb. 3 rd – 7 th, 2014 7 2014 Gas Lift Workshop Further development of the old ideas? High Pressure Gas Lift? Casing integrity Cost Hydraulic Gas Lift Valves? For single point gas cap lift Out dated technology? Are there alternatives?

8 What is the solution? Feb. 3 rd – 7 th, 2014 8 2014 Gas Lift Workshop Remote control Variable rates of injection Without using injection pressure control Data acquisition Retrievable Annular Safety Valves 2013 36 Th ASME/ALRDC International Gas Lift Workshop What the experts said !

9 Camcon Apollo Gas Lift Unit Feb. 3 rd – 7 th, 2014 9 2014 Gas Lift Workshop ¼ control line for remote control 6 independent, electrically actuated, valves for variable injection rate Not injection pressure controlled No temperature sensitivity Real time pressure and temperature Real time well and field optimisation Without intervention The solution

10 10 First Installation

11 Apollo Gas Lift: Oman Installation Feb. 3 rd – 7 th, 2014 11 2014 Gas Lift Workshop Brought on line: in October 2013 Valves run closed on installation Valves actuated remotely Electrical connections secure Data transmission ongoing in real time Operator testing ongoing. Field challenges experienced and addressed First unit installed and operational

12 Original Data Plot Apollo Gas Lift: Oman Installation Downhole Temperature and Pressure Pick up re-start of gas injection and unloading valve closure

13 Chart clearly shows impact of intervention activity Apollo Gas Lift: Oman Installation Well intervention in progress

14 Tubing Pressure Shows Unloading Valve Action & Temperature Tracks Production. Unloading valve action seen here Apollo Gas Lift: Oman Installation

15 15 Apollo Gas Lift: Oman Installation

16 Feb. 3 rd – 7 th, 2014 16 2014 Gas Lift Workshop Plans going forward Expand reference base of users On Shore Off Shore Flow testing Higher P & T, Longer Reach Multiple Unit Installation Intelligent Well and Field Optimisation

17 What are the applications? Feb. 3 rd – 7 th, 2014 17 2014 Gas Lift Workshop Intervention limitations: subsea / high angle / bed space / wireline crew scheduling or skillset Dual Gas Lift Completions Multi well start-up & optimisation acceleration Liquids removal from gas wells Unloading control to protect surface separators Deepwater flow control (fibre optic line built in) Onshore and Offshore deployments

18 Intelligence in the Upper Wellbore Feb. 3 rd – 7 th, 2014 18 2014 Gas Lift Workshop Move to the 21 st century with intelligent gas lift Surface controlled Electrically actuated valves Multi Ported Real time well and field optimisation Without intervention THANK YOU

19 Copyright 19 Rights to this presentation are owned by the company(ies) and/or author(s) listed on the title page. By submitting this presentation to the Gas-Lift Workshop, they grant to the Workshop, the Artificial Lift Research and Development Council (ALRDC), and the American Society of Mechanical Engineers (ASME), rights to: –Display the presentation at the Workshop. –Place it on the www.alrdc.com web site, with access to the site to be as directed by the Workshop Steering Committee. –Place it on a CD for distribution and/or sale as directed by the Workshop Steering Committee. Other uses of this presentation are prohibited without the expressed written permission of the company(ies) and/or author(s) who own it and the Workshop Steering Committee. Feb. 6 - 10, 2012 2012 Gas Lift Workshop

20 Disclaimer 20 The Artificial Lift Research and Development Council and its officers and trustees, and the Gas-Lift Workshop Steering Committee members, and their supporting organizations and companies (here-in-after referred to as the Sponsoring Organizations), and the author(s) of this Technical Presentation or Continuing Education Training Course and their company(ies), provide this presentation and/or training material at the Gas-Lift Workshop "as is" without any warranty of any kind, express or implied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded under any relevant law) and these members and their companies will not be liable for unlawful actions and any losses or damage that may result from use of any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained. The views, opinions, and conclusions expressed in these presentations and/or training materials are those of the author and not necessarily those of the Sponsoring Organizations. The author is solely responsible for the content of the materials. The Sponsoring Organizations cannot and do not warrant the accuracy of these documents beyond the source documents, although we do make every attempt to work from authoritative sources. The Sponsoring Organizations provide these presentations and/or training materials as a service. The Sponsoring Organizations make no representations or warranties, express or implied, with respect to the presentations and/or training materials, or any part thereof, including any warrantees of title, non-infringement of copyright or patent rights of others, merchantability, or fitness or suitability for any purpose. Feb. 6 - 10, 2012 2012 Gas Lift Workshop


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