Patent · US Active

System and method for improved depth measurement correction

US8042624B2 · kind B2 · utility

2Cited by

2References

20Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Lars Quernheim · Sulingen, DE
Dmitriy Dashevskiy · Bad Doberan, DE
John D. Macpherson · Spring, US

Key dates

Filing date	Apr 14, 2009
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Apr 22, 2030

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/04
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for generating corrected geologic depth information is disclosed. The method includes: estimating a depth of each of a plurality of different locations along a length of a drillstring disposed in a borehole; measuring at least one environmental factor at each of the plurality of different locations and determining a deformation of the drillstring at each of the plurality of different locations from the measured environmental factor; and generating a non-linear model of the deformation along the length relative to a reference point. A system and computer program product for generating corrected geologic depth information is also disclosed.

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