Invention Grant
- Patent Title: System and method for thru tubing deepening of gas lift
- Patent Title (中): 气升通道加深系统及方法
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Application No.: US12420425Application Date: 2009-04-08
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Publication No.: US07954551B2Publication Date: 2011-06-07
- Inventor: Jeffrey L. Bolding
- Applicant: Jeffrey L. Bolding
- Applicant Address: US TX Houston
- Assignee: BJ Services Company LLC
- Current Assignee: BJ Services Company LLC
- Current Assignee Address: US TX Houston
- Agency: Zarian Midgley & Johnson PLLC
- Main IPC: E21B43/00
- IPC: E21B43/00

Abstract:
The present disclosure is directed to a gas lift system adapted to provide a gas injection point to a deeper location in a wellbore. A turn-over suspension mandrel can be landed inside a side pocket mandrel and connected to a gas lift valve on one end and a coil on the other end. A length of production tubing can extend from the side pocket mandrel. The production tubing can include a production packer to seal the annulus between the tubing and the well casing. The turn-over suspension mandrel can be constructed such that gas entering the gas lift valve is directed down through the coil and into the wellbore beneath the production packer. A plug can be placed at the bottom of the coil in order to prevent blowouts during installation of the gas lift system. An alternative embodiment of the present disclosure provides a coil and plug hung from a gas lift valve of a pack-off assembly.
Public/Granted literature
- US20090255684A1 SYSTEM AND METHOD FOR THRU TUBING DEEPENING OF GAS LIFT Public/Granted day:2009-10-15
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