E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/13 (2006.01) C09K 8/50 (2006.01) E21B 33/138 (2006.01)
Patent
CA 2505896
The current invention provides a method for enhancing the formation stability of water sensitive, reactive formations penetrated by a wellbore. The method of the current invention provides an accurate evaluation of the impact of cementing fluids on water sensitive, reactive formations and provides the ability to accurately formulate cementing fluids in order to enhance the stability of such formations. When necessary, the method of the current invention additionally provides for the application of an osmotic semi- permeable membrane to the face of the formation.
L'invention concerne un procédé pour accroître la stabilité de formations souterraines réactives, sensibles à l'eau, traversées par un puits. Le procédé selon l'invention permet d'obtenir une évaluation précise de l'impact des fluides de cimentation sur les formations réactives, sensibles à l'eau, et permet de formuler des fluides de cimentation avec précision de façon à accroître la stabilité desdites formations. Si nécessaire, le procédé selon l'invention peut en outre faire appel à une membrane osmotique semi-perméable appliquée sur la face de la formation.
Heathman James F.
Ravi Krishna M.
Tare Uday A.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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