Invert emulsion fluids suitable for drilling

Details Invert emulsion fluids suitable for drilling Invert emulsion fluids suitable for drilling

C - Chemistry, Metallurgy

09

K

C09K 8/52 (2006.01) C09K 8/32 (2006.01) C09K 8/36 (2006.01) E21B 21/06 (2006.01)

Patent

CA 2237599

New drilling fluids have been invented which are invert emulsion fluids comprisng an aleaginous liquid, a non-oleaginous liquid, and a protonated amine. Such fluids are acidic and thus useful in drilling wells in which acidic gases such as CO2 or H2S are likely to be encountered and break, i.e. de-emulsify, the drilling fluid.

On a découvert des nouveaux fluides de forage, lesquels se composent d'une émulsion inverse comprenant un liquide oléagineux, un liquide non oléagineux ainsi qu'une amine protonée. De tels fluides sont acides et sont par conséquent utiles dans des puits de forages dans lesquels on est susceptible de rencontrer des gaz acides tels que CO2 ou H2S, lesquels peuvent rompre, c'est-à-dire désémulsionner, le fluide de forage.

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