Methods and compositions for forming permeable cement sand...

Details Methods and compositions for forming permeable cement sand... Methods and compositions for forming permeable cement sand...

E - Fixed Constructions

21

B

E21B 43/04 (2006.01) C04B 28/02 (2006.01) C04B 40/06 (2006.01) C08L 1/00 (2006.01) C08L 1/04 (2006.01) C09K 8/46 (2006.01) E21B 43/02 (2006.01) E21B 43/08 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2413710

Methods of forming a permeable cement composition in a well bore adjacent to a fluid producing zone therein and cement compositions for forming permeable cement sand screens in well bores are provided. A cement composition of the invention is comprised of a hydraulic cement, a particulate cross-linked aqueous gel having a size in the range of from about 100 microns to about 3000 microns containing an internal temperature activated breaker, a particulate dehydrated cross-linked aqueous gel having a size in the range of from about 40 microns to about 500 microns containing an internal temperature activated breaker and water present in an amount sufficient to form a slurry.

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