Oxazolidine friction reducing additives for aqueous drilling...

Details Oxazolidine friction reducing additives for aqueous drilling... Oxazolidine friction reducing additives for aqueous drilling...

C - Chemistry, Metallurgy

09

K

31/30

C09K 8/22 (2006.01) C07D 498/04 (2006.01)

Patent

CA 1069290

ABSTRACT The friction created by rotating and reciprocating a drill pipe in a well penetrating a subterranean formation is reduced by including an ester of an oxazolidine derivative in an aqueous drilling fluid. This ester of an oxazolidine derivative is represented by the following general formula: Image (1) wherein n is an integer within the range of about 5 to 20.

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