Chevron U.s.a. Inc.

Halliburton Energy Services, Inc.

Jon E Burger

Varadarajan Dwarakanath

Lin Li

Marcus Oliver Wigand

Guo-Qing Tang

Douglas K McCarty

Dyung Tien Vo

Christopher Michael Jones

Richard J Drozd

Patrick Jacobs

A workflow to optimize a fracturing fluid for injection into a subterranean formation is provided. The workflow comprises measurement of fundamental properties and characteristics of reservoir rock and fluid, their interaction with fracturing fluid, computer-based models and laboratory performance testing to select preferred fracturing base fluid and additives package for use in fracturing/re-fracturing stimulation of specific shale formations to enhance hydrocarbon recovery.

Processes and systems for characterizing and optimizing fracturing fluids

A method for measuring the infiltration of coring fluid into a core sample taken from a formation comprises a) providing a coring fluid containing cesium in a first concentration, b) using the coring fluid and a coring means to generate the core sample, c) determining the concentration of cesium present in the core sample; and d) comparing the core sample cesium concentration to the first concentration. A further preferred step comprises using the comparison in step d) to calculate the degree of infiltration of the coring fluid into the core sample.

Use of cesium as a tracer in coring operations

Growing community of inventors

Houston, TX, United States of America

Jon E Burger