Patent · US Active

Alignment of downhole strings

US9200487B2 · kind B2 · utility

14Cited by

10References

4Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Ian Draper · Godalming, GB
John H. Clark · Los Alamos, US
David C. Brands · Portland, US

Key dates

Filing date	Dec 8, 2011
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Jan 9, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B23/14
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A downhole system includes a downhole string insertable within a subterranean wellbore and a roller assembly coupled with the string. The roller assembly includes rollers mounted on lateral sides of the downhole string for reducing the resistance of deploying the string within the wellbore. The string is rotatable about its axis with respect to the roller assembly; bearing surfaces, or low torque surfaces, are included in the roller assembly to further reduce rotational friction so the string precisely positions itself to a designated orientation.

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