Patent · US Active

System and method to locate, monitor and quantify friction between a drillstring and a wellbore

US8600679B2 · kind B2 · utility

2Cited by

1References

20Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Ralf Zaeper · Hannover, DE
Roland May · Celle, DE
John D. Macpherson · Spring, US
Thomas Dahl · Wendeburg, DE

Key dates

Filing date	Feb 20, 2009
Grant date	Dec 3, 2013
Priority date	—
Expiry date	Mar 24, 2030

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/09
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed herein is a method of locating and quantifying friction between a drillstring and a wellbore. The method includes, positioning a plurality of sensors within a wellbore, communicatively coupling the plurality of sensors, monitoring signals from the plurality of sensors, logging the sensed signals versus time versus depth of each of the plurality of sensors, locating at least one friction zone along the drillstring within the wellbore based on the logging and quantifying friction in the at least one friction zone based on the logging.

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