1. 41st Gas-Lift Workshop Houston, Texas, USA June 3 - 7, 2019
Gas Lift Validation Needs and Requirements for Deepwater
Steven Freeman
Eli Adams
Wayne Mabry
2019 Gas-Lift Workshop
June 3 - 7, 2019

2. Where is the need? Project only economical with Gas Lift
Location 150 miles southeast of New Orleans
Subsea well head 4,000 Ft water
Desired analogue
23Ksi
350˚F
PKR- 26K FT
5.5” tubing & 4.5”
30 year well life
8-10 MMUSD to pull GLV
2019 Gas-Lift Workshop
June 3 - 7, 2019

3. Gas Lift Capabilities in 2012
Back Checks rated to TR2385 requirements & API
Design for 10Ksi back check at max rated design temperature
1 back check unit tested for validation
20cc leak rate over 10 minute hold minimum
Ambient back pressure validation testing & at max temp
Max pressure validation testing & at max temp
Liquid flow testing
Gas Flow rate testing
Testing is in sequence as stated in TR2385
Validation testing often not witnessed by Statoil staff
Validation of TR2385 is accepted by Shell for Dry Tree projects
2019 Gas-Lift Workshop
June 3 - 7, 2019

4. Deepwater Gas Lift Validation Requirements
Control document that establishes the requirements for Shell’s subsea gas lift kit:
Side Pocket Mandrel-SPM
Flow Control Devices, Non-Metallics & Latches
Intervention tools
The requirements in this document may exceed the current requirements in the API 19G series documents. In case of any deviation between this document and the API 19G series documents, this document shall supersede the requirements for vendors to use.
Work along side suppliers providing expertise when necessary
Witness 100% of development, testing & manufacturing
Require API 19G 1,2,3 & Q1 qualification from supplier
2019 Gas-Lift Workshop
June 3 - 7, 2019

5. Why Create a Deepwater Gas Lift Control Document
Project Cost
Est. to drill & complete subsea well MM USD
Est. cost to pull subsea tubing 20 MM USD
Recomplete upper completion 25 MM USD
Dependence on gas lift to be economical
Subsea well cost makes ALS desirable from day 1
Intervention cost for ALS systems in Subsea
Increased reliability & run life is the need
Decreased intervention frequency adds value
2019 Gas-Lift Workshop
June 3 - 7, 2019

6. Deepwater Gas Lift Control Document’s Achievement
Design Validation Process
Establishes Design methodology
General design requirements
Project specific data provided
Dictates involvement of end user’s experts with supplier
Software required
Required materials & banned
Technical specifications
Vendor requirements
Testing requirements & validation process
Quality expectations
Audits
Establish manufacturing requirements
Final reports
Prototype Phase Requirements
Locks design & provides required validation testing necessary to satisfy project requirements.
FCDs- successful testing of 3 units with out fail or redress
Differential test at ambient & well conditions
Long duration flow test of well specific SG at well temperature
Liquid unloading test
Long duration chattering test
Full FEA review
Full CFD review
API monogram
SPM- successful testing of 1 unit from required material
Full FEA review to ASME VII. Div3 & strain gauge test
Welding WPS, with heat treatment established
Intervention Tools- Successful design acceptance to API 19G
Establishes in-well SIT acceptance
Non-metallics-establish life expectancy of non-metallics
Long term testing with: Thermo Chemical, Mechanical, Cyclical
Temperature
Well pressure,
Well fluids
Chemicals
2019 Gas-Lift Workshop
June 3 - 7, 2019

7. The Next Step of the Control Document
All well specific and end user data has been removed
Permission granted to turn over document to API 19G committee
Desire to see document utilized by 19G in a capacity beneficial to the gas lift community.
Hope to see document referred to as “Wayne Mabry’s Magnum Opus”
2019 Gas-Lift Workshop
June 3 - 7, 2019

8. Copyright
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 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.
2019 Gas-Lift Workshop
June 3 - 7, 2019

9. Disclaimer
The following disclaimer shall be included as the last page of a Technical Presentation or Continuing Education Course. A similar disclaimer is included on the front page of the Gas-Lift Workshop Web Site.
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.
2019 Gas-Lift Workshop
June 3 - 7, 2019