Invention Grant
- Patent Title: Downhole tubular lifter and method of using the same
- Patent Title (中): 井下管式升降机及其使用方法
-
Application No.: US12480580Application Date: 2009-06-08
-
Publication No.: US08146668B2Publication Date: 2012-04-03
- Inventor: Gavin J. Bell
- Applicant: Gavin J. Bell
- Applicant Address: US OK Duncan
- Assignee: Halliburton Energy Services Inc.
- Current Assignee: Halliburton Energy Services Inc.
- Current Assignee Address: US OK Duncan
- Agency: Conley Rose, P.C.
- Agent John W. Wustenberg
- Main IPC: E21B23/00
- IPC: E21B23/00

Abstract:
A method of raising a tubular, comprising attaching a lifter to a tubular associated with a wellbore, and operating the lifter to transmit a downward force to a subterranean formation via a surface of the wellbore formed in the subterranean formation while also operating the lifter to transmit an upward force to the tubular. A lifter for lifting a tubular associated with a wellbore comprising a securing mechanism configured to restrict movement of the securing mechanism relative to an upper tubular portion, and a piston configured to be received within a lower tubular portion and configured to promote a seal between the piston and the lower tubular portion.
Public/Granted literature
- US20100307768A1 Downhole Tubular Lifter and Method of Using the Same Public/Granted day:2010-12-09
Information query