E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/13 (2006.01) C04B 40/00 (2006.01) C09K 8/46 (2006.01)
Patent
CA 2378541
A method for providing lower than normal API Class cement slurries for use in oil well cementing is disclosed. Rather than the use of any conventional density extenders for hydraulic cement, such as bentonite, only plain water is added to the selected normal API Class slurry to extend its density. The use of cement retarders, cement accelerators, or friction reducers for these purposes, but not for density extension, is contemplated also.
Haberman John P.
Mbm Intellectual Property Law Llp
LandOfFree
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