Well treating process and composition

Details Well treating process and composition Well treating process and composition

E - Fixed Constructions

21

B

31/26

E21B 33/14 (2006.01) C04B 28/04 (2006.01) C09K 8/46 (2006.01)

Patent

CA 1216748

Abstract of the Disclosure A process for treating a subterranean zone by emplacing therein a hardenable aqueous slurry and then permitting the slurry to harden, where the slurry comprises a hydraulic cement, water, sodium bentonite, sodium metasilicate, and a hydroxyethyl cellulose. The composition and process employing same is particularly useful in the treatment of oil and gas wells where cementing of a weak formation or very long string cementing, in a single stage, is desired.

444720

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