Schlumberger Technology Corporation

Robert L Jeffries

Erik Rylander

Sammy S Haddad

Ali Mamdouh Osman

Caleb James Haley

Andrea Caines

Johnathan Adam Wallis

Glenn Houston

The present disclosure relates to systems and methods for determining the retraction rate of a coring bit based on sensed environmental factors associated with coring operations. In certain embodiments, a downhole tool is positioned in a wellbore extending into a subterranean formation, coring operations are commenced by rotating a coring bit of the downhole tool and extending the rotating coring bit into a first location along a sidewall of the wellbore, a first environmental factor associated with the coring operations at the first location is sensed, and a rate of retraction of the coring bit at the first location is determined based on the first sensed environmental factor.

Systems and methods for core recovery

A method and apparatus for testing formations surrounding an earth borehole. The method includes the following steps: providing a tool movable through the borehole; providing a flow line in the tool; establishing fluid communication between the formations and the flow line of the tool; and providing a sand trap in communication with the flow line of the tool for trapping sand flowing with fluid from the formations.

Formation testing apparatus and method

Growing community of inventors

New Orleans, LA, United States of America

Robert L Jeffries