Invention Grant
- Patent Title: Downhole wireline intervention tool
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Application No.: US16256214Application Date: 2019-01-24
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Publication No.: US11428066B2Publication Date: 2022-08-30
- Inventor: Tomas Sune Andersen
- Applicant: Welltec Oilfield Solutions AG
- Applicant Address: CH Zug
- Assignee: Welltec Oilfield Solutions AG
- Current Assignee: Welltec Oilfield Solutions AG
- Current Assignee Address: CH Zug
- Agency: Nixon & Vanderhye P.C.
- Priority: EP18153490 20180125
- Main IPC: E21B33/127
- IPC: E21B33/127 ; E21B43/26

Abstract:
The present invention relates to a downhole wireline intervention tool for performing intervention in a well, comprising a wireline, a motor powered by the wireline, a positive displacement pump driven directly or indirectly by the motor for delivering a flow of fluid, an expandable bladder expanded by fluid delivered by the positive displacement pump, and a flow control device comprising an inlet, a piston and a venting port fluidly connected to the well, the piston being movable between a first position in which the venting port is fluidly connected to the expandable bladder and a second position in which the venting port is fluidly isolated from the expandable bladder for expanding the expandable bladder. The present invention also relates to a downhole system comprising a well tubular metal structure, an intervention method for intervening a well by means of the downhole wireline intervention tool according to the present invention and finally, the use of the downhole wireline intervention tool according to the present invention.
Public/Granted literature
- US20190226299A1 DOWNHOLE WIRELINE INTERVENTION TOOL Public/Granted day:2019-07-25
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