Patent · US Active

Extendable and elongating mechanism for centralizing a downhole tool within a subterranean wellbore

US9163500B2 · kind B2 · utility

5Cited by

13References

21Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Chen Tao · Sugar Land, US
Thomas Meyer · Walchwil, CH

Key dates

Filing date	Sep 29, 2011
Grant date	Oct 20, 2015
Priority date	—
Expiry date	Jul 13, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B17/1014
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus including a downhole tool for conveyance in a wellbore extending into a subterranean formation. The downhole tool includes a feature to physically interface a sidewall of the wellbore, and first and second setting pistons each extendable from the downhole tool opposite the feature. The downhole tool also includes a rigid member spanning and extendable with the first and second setting pistons, wherein a length of the rigid member is variable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.