Apparatus for chemical cutting
Patent
·
OSTI ID:5403854
A cylindrical down-hole chemical jet cutting tool includes a generally cylindrical slip body having pipe gripping slips connected to a coaxially disposed expandable piston-cylinder biased toward a retracted position by a return spring. Each slip includes a pivoting head pivotally retained by the slip body and biased toward a retracted from deployed position by a garter spring. Each slip defines at least 2 sets of gripping teeth having different gripping faces such that each gripping face becomes substantially parallel with the tool body axis as the slip becomes deployed a different respective distance from the tool. A slip expansion mandrel disposed within the slip array deploys the slips into gripping engagement as the piston-cylinder is actuated in response to application of fluid pressure. A chemical fluid cutting means, including a fluid chamber defined within the tool body between 2 diaphragms, can rupture from application of a designated differential fluid pressure. The fluid jet discharge part of the tool is adapted to direct fluid chemical from the tool body at high velocity. 12 claims.
- Assignee:
- Gearhart Industries Inc.
- Patent Number(s):
- US 4345646
- OSTI ID:
- 5403854
- Country of Publication:
- United States
- Language:
- English
Similar Records
Downhole well tool and anchoring assembly
Hydraulically operated well packer
Single bore packer with dual flow conversion for gas lift completion
Patent
·
Mon Nov 14 23:00:00 EST 1983
·
OSTI ID:5294312
Hydraulically operated well packer
Patent
·
Tue Apr 14 00:00:00 EDT 1992
·
OSTI ID:5158622
Single bore packer with dual flow conversion for gas lift completion
Patent
·
Tue May 19 00:00:00 EDT 1992
·
OSTI ID:5054615