Hydraulic stabilizer for bore hole tool
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United States of America Patent
Stats
-
Oct 11, 1988
Grant Date -
N/A
app pub date -
Feb 13, 1987
filing date -
Feb 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stabilizer (36) mounted on a mandrel (14) of a workstring (12) within a casing (10) of a well bore hole. The stabilizer (36) has an upper carrier (38) fixed to the mandrel (14) and a lower carrier (40) mounted on the mandrel (14) for relative sliding movement. Shoes (70) are mounted by links or arms (64, 74) to bearing housing (50, 80) on the carriers (38, 40). The bearing housings (50, 80) are mounted for relative rotation on the carriers (38, 40) and permit the mandrel (14) and workstring (12) to rotate relative to the shoes (70) upon fluid actuation of lower carrier (40) and engagement of the casing (10) by the shoes (70).
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