Tech Talk: Retrofit Thru-tubing Deep Gas Lift - A Case Study from Brunei

When:  Nov 2, 2023 from 06:00 PM to 08:00 PM (ICT)
Associated with  Vietnam Section

Retrofit Thru-tubing Deep Gas Lift - A Case Study from Brunei

Scott Gutleber & Threedhases Jiamjarasrungsi Weatherford

02 November 2023


Scott and Nat will present a case study for a shut-in offshore oil producer in Brunei with multiple tubing leaks.  An innovative thru-tubing retrofit gas lift system was installed, isolating the leaks and allowing for lift gas injection below the production packer. The gas lift valve was placed 200 m TVD deeper than the lowermost side pocket mandrel, enabling production from a deeper depth than would be possible using conventional gas lift. Within four hours of starting lift gas injection, the well was flowing steadily with 900 kPa of FWHP. This cost-effective approach helped the operator avoid an expensive workover and maximize production potential.


Threedhases Jiamjarasrungsi (Nat) is Operations Manager at Weatherford with over 12 years of experience in artificial lift and production solutions in Thailand, Myanmar, and Vietnam. He holds a Bachelor degree in Mechanical Engineering and began his career as an artificial lift engineer. Over the years, he has held a variety of roles in artificial lift, production chemicals, procurement, and digital solutions. He also served as a Board of Director for the SPE Thailand Chapter.

Scott Gutleber is a Technical Sales Engineer from Weatherford with 14 years of experience in rigless well intervention.  He holds a Bachelors degree in Materials Science Engineering and a Bachelors degree in Finance from the University of Pennsylvania.  Scott is currently based in Bangkok, having completed assignments in Asia, the Middle East, West Africa, and the North Sea.


  • 18:00 - 18:30 - Welcome Drinks and Food
  • 18:30 - 19:30 - Presentation, Q&A
  • 19:30+ - Networking


  • Free entry for all participants
  • This is a face-to-face session only
  • Contact Robert Fargo on +84903689948 or


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Robert Fargo