Patent · US Active

Segmented sleeve on a downhole tool string component

US7669671B2 · kind B2 · utility

4Cited by

52References

20Claims

0Family size

Inventors

David R. Hall · Provo, US
Paula Turner · Pleasant Grove, US
Nathan Nelson · Provo, US

Key dates

Filing date	Aug 20, 2007
Grant date	Mar 2, 2010
Priority date	—
Expiry date	Mar 31, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B17/046
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In one aspect of the invention a downhole tool string component has a segmented sleeve slideably attached over the exterior of a mandrel which is adapted for connection to an adjacent tool string component. An end of the sleeve is abutted against a shoulder element of the mandrel and an opposite end of the sleeve is axially loaded by a threaded element attached to the mandrel. The sleeve comprises at least one sleeve segment with an engagement end comprising at least one axial anti-rotation assembly adapted to transfer torque to an adjacent sleeve segment, the shoulder element, or the threaded element.

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