Oil-based settable spotting fluid

Details Oil-based settable spotting fluid Oil-based settable spotting fluid

C - Chemistry, Metallurgy

09

K

C09K 8/467 (2006.01) C04B 28/18 (2006.01) C09K 8/502 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2353771

Oil-based settable spotting fluid compositions and methods of using the compositions are provided. The oil-based settable spotting fluid compositions are basically comprised of oil, an emulsifying surfactant for emulsifying the oil with water whereby an oil-external emulsion is formed, a de-emulsifying surfactant which in time de-emulsifies said oil-external emulsion when the emulsion is contacted with external water, a hydraulic settable component selected from the group consisting of ASTM Class C or the equivalent fly ash and ASTM Class F or the equivalent fly ash together with a source of calcium and water selected from the group consisting of fresh water and salt water.

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