Patent · US Active

Adjustable bent housing for directional drill string

US9670731B2 · kind B2 · utility

1Cited by

14References

32Claims

0Family size

Inventors

Paul Donald Roberts · Broussard, US
Timothy E. LaGrange · Penhold, CA

Key dates

Filing date	Mar 11, 2014
Grant date	Jun 6, 2017
Priority date	—
Expiry date	Apr 16, 2035

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B7/067
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An adjustable bent housing assembly for a deviated direction drill string having 1.5° adjustment increments between an index sub housing and mandrel has variances of less than 0.02° at 0.25 nominal degree increments between 0° and 3.00° of drill direction deviation.

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