Patent · US Active

Realtime dogleg severity prediction

US9043152B2 · kind B2 · utility

16Cited by

5References

8Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Frank Schuberth · Hannover, DE
Hanno Reckmann · Wathlingen, DE
John D. Macpherson · Spring, US
James A. Hood · Concord, US

Key dates

Filing date	Aug 8, 2011
Grant date	May 26, 2015
Priority date	—
Expiry date	Jul 3, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/022
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method for estimating an inclination and azimuth at a bottom of a borehole includes forming a last survey point including a last inclination and a last azimuth; receiving at a computing device bending moment and at least one of a bending toolface measurement and a near bit inclination measurement from one or more sensors in the borehole; and forming the estimate by comparing possible dogleg severity (DLS) values with the bending moment value.

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