Baker Hughes Corporation

Christopher A Wolfe

Michael Reese

Stefan Wessling

David Alexander Curry

Andreas G Sadlier

James Peter Dwyer

Javier Alejandro Franquet

Martin Brudy

Ji Soo Lee

Terrance H Quinn

Antonio Santagati

Mark Alan Jenkins

A method and apparatus for estimating a rock strength profile of a formation is disclosed. A tool having a testing surface is conveyed into a wellbore in the formation. The testing surface is propelled to impact the formation at a plurality of depths in the wellbore. A measurement of hardness of the formation is obtained from a rebound of the testing surface from the formation at the plurality of depths. The rock strength profile of the formation is estimated using the obtained measurements of hardness at the plurality of depths. A parameter for drilling the wellbore can be affected using the estimated rock strength profile.

Downhole rebound hardness measurement while drilling or wireline logging

A method for generating an alert or advice for drilling a borehole penetrating an earth formation includes: receiving with a processor a borehole image from a downhole tool disposed at a drill tubular drilling the borehole; detecting a first breakout and a second breakout shifted approximately 180&#xb0; apart from the first breakout if breakouts are in the image using a method for detecting breakouts implemented by the processor; and generating an alert or advice with the processor if the first and second breakouts are detected.

System and method for generation of alerts and advice from automatically detected borehole breakouts

Apparatus and method of conducting a drilling operation are provided. One embodiment of the method includes drilling a borehole, predicting a value of a first parameter relating to the drilling of the borehole using a geomechanical model, estimating a value of a second parameter from measurements taken by a sensor, updating the geomechanical model based at least in part on the estimated value of the second parameter, predicting a second value of the first parameter using the updated geomechanical model, and altering a drilling parameter for drilling the borehole based on the predicted second value of the first parameter.

System and methods for real-time wellbore stability service

Growing community of inventors

Katy, TX, United States of America

Christopher A Wolfe