Oil well cementing process and composition

Details Oil well cementing process and composition Oil well cementing process and composition

C - Chemistry, Metallurgy

04

B

260/133, 31/19

C04B 7/02 (2006.01) C04B 24/18 (2006.01) C09K 8/46 (2006.01) E21B 33/14 (2006.01)

Patent

CA 1150244

Abstract Oil well cementing compositions and processes are produced using a high efficiency sulfoalkylated lignin retarder composition and modificatoons thereof to produce cement compositions without gelation problems, having high early strength and with pre- cisely controllable setting time.

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