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Title: Differential actuating system for downhole tools

Patent ·
OSTI ID:6039114

A downhole tool apparatus is described, comprising: a housing having a power chamber defined therein, and having power passage means defined in said housing for providing fluid pressure communication between said power chamber and first and second zones of a well; and pressure transfer control means for selectively applying a pressure differential between said first and second zones of said well across said power chamber to operate said downhole tool apparatus.

Assignee:
Halliburton Co., Duncan, OK (United States)
Patent Number(s):
US 5238070; A
Application Number:
PPN: US 7-838373
OSTI ID:
6039114
Resource Relation:
Patent File Date: 19 Feb 1992
Country of Publication:
United States
Language:
English