Invention Grant
- Patent Title: Force monitoring tractor
- Patent Title (中): 力监测拖拉机
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Application No.: US12434108Application Date: 2009-05-01
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Publication No.: US08905148B2Publication Date: 2014-12-09
- Inventor: Keith R. Nelson , Gohar Saeed , Franz Aguirre
- Applicant: Keith R. Nelson , Gohar Saeed , Franz Aguirre
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Trevor Grove
- Main IPC: E21B23/00
- IPC: E21B23/00 ; E21B4/18 ; E21B17/10 ; E21B23/14

Abstract:
A downhole tractor assembly that is configured for open-hole applications. The assembly includes a force monitoring mechanism to help monitor and control forces imparted through a drive mechanism of the tractor in real time. As such, damage to open-hole formations due to excessive tractoring forces may be minimized along with mechanical damage to the tractor. Furthermore, the drive mechanism of the tractor may include multiple sondes and bowsprings with gripping saddles specially configured for contacting the well wall across a large area in a non-point and line manner so as to avoid digging into and damaging the well wall during tractoring.
Public/Granted literature
- US20090236101A1 Force Monitoring Tractor Public/Granted day:2009-09-24
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