G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 23/222 (2006.01) C04B 22/00 (2006.01) C04B 28/04 (2006.01) C04B 40/00 (2006.01) C09K 8/46 (2006.01) E21B 33/138 (2006.01) E21B 47/00 (2006.01) E21B 47/10 (2006.01)
Patent
CA 2192890
The present invention provides improved traceable well cement compositions and methods. The compositions are basically comprised of hydraulic cement, sufficient water to form a pumpable slurry and a normally non-radioactive tracer compound which becomes radioactive and emits detectible rays over a relatively short time period when exposed to neutrons. The methods of the invention relate to cementing a zone in a well and subsequently detecting the subterranean location of the cement composition therein. A traceable well cement composition of the invention is formed and introduced into a subterranean zone to be cemented. Neutrons are then emitted from a source in the well so that the tracer compound emits detectible rays, the rays are detected and the location of the cement composition in the well is determined.
Buchanan Ronnie J.
Chatterji Jiten
Heathman James F.
Haliburton Company
Halliburton Energy Services Inc.
Swabey Ogilvy Renault
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