Acid removable low density well cement compositions and methods

Details Acid removable low density well cement compositions and methods Acid removable low density well cement compositions and methods

E - Fixed Constructions

21

B

E21B 43/22 (2006.01) C04B 9/02 (2006.01) C04B 28/32 (2006.01) C04B 38/10 (2006.01) C04B 40/00 (2006.01) C09K 8/46 (2006.01) E21B 33/134 (2006.01) E21B 33/16 (2006.01)

Patent

CA 2089854

Abstract of the Disclosure Low density well cement compositions which set into hard substantially impermeable masses, but which are removable by dissolution in acid, and methods of utilizing such compositions for forming removable cement plugs or seals in subterranean zones are provided. The compositions are comprised of pumpable foamed slurries of magnesium oxychloride cement.

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