Halliburton Energy Services, Inc.

Halliburton Company

James L Haney

Diederik W Van Batenburg

David O Johnson

Gerard Glasbergen

David P Ewert

Jose Sierra

David D Onan

Larry Thomas Watters

Ronney R Koch

Mary Van Domelen

Gary E Folmnsbee

Randall D Stilley

Vincent J Bila

Mary Van Domeien

Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Tracking fluid displacement along a wellbore using real time temperature measurements

Improved methods of displacing a first liquid through a pipe with a second liquid while preventing the first and second liquids from mixing are provided. In accordance with the methods, a plug is formed in-situ in the pipe between the first and second liquids by injecting a self-thickening liquid therein and permitting the liquid to thicken. The formed plug and the first liquid are then displaced through the pipe with the second liquid. The methods are particularly suitable for carrying out subterranean well bore cementing operations wherein cement slurries are displaced through pipes disposed in well bores.

Method of displacing liquids through pipes

Methods of displacing liquids through pipes

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Duncan, OK, United States of America

James L Haney