Method and apparatus for establishing communication with a downhole portion of a control fluid pipe
Patent
·
OSTI ID:6024518
This patent describes the method of establishing communication with a downhole portion of a control fluid conduit extending from the surface to a downhole tool in a subterranean well. The downhole tool having a tubular housing portion. It comprises: providing an axially extending bore in the wall of the tubular housing portion; providing a recess in the bore wall of the tubular housing portion encompassing a portion of the axially extending bore; running a control fluid conduit through the axially extending bore and the recess; mounting a cutting element in the recess for radial movement; mounting a wedge element in the tubular housing portion for axial movement relative to the cutting element; and inserting engaging means. This patent also describes an apparatus for establishing downhole fluid communication with an installed control fluid conduit. It comprises: a downhole fluid pressure operated tool having a tubular housing; an axially extending bore in the wall of the tubular housing; a control fluid conduit passing through the axially extending bore; a recess in the bore wall of the housing encompassing a portion of the control fluid conduit; a cutting tool block having a cutting edge; the cutting tool block being mounted in the recess for generally radial movement relative to the tubular housing with the cutting edge disposed on the radially outer portion of the cutting tool block; a wedge element mounted in the recess for axial movement; a wedge actuating sleeve; and the wedge actuating sleeve.
- Assignee:
- Baker Hughes Inc., Houston, TX (USA)
- Patent Number(s):
- US 4981177; A
- Application Number:
- PPN: US 7-422774
- OSTI ID:
- 6024518
- Country of Publication:
- United States
- Language:
- English
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