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A platform for research: civil engineering, architecture and urbanism
Well cementing
A hydraulic well cementing composition is disclosed. The well cementing composition contains a hydraulic cement and a fluid loss additive. The fluid loss additive is the polymerization reaction product of a two vinylamide monomers, wherein the polymerization reaction is conducted in the presence of a molecular weight control agent. One of the vinylamide monomers includes a sulfonic acid function, the second vinylamide monomer does not include a sulfonic acid function. The fluid loss additive controls fluid loss at temperatures up to 350° F.
Well cementing
A hydraulic well cementing composition is disclosed. The well cementing composition contains a hydraulic cement and a fluid loss additive. The fluid loss additive is the polymerization reaction product of a two vinylamide monomers, wherein the polymerization reaction is conducted in the presence of a molecular weight control agent. One of the vinylamide monomers includes a sulfonic acid function, the second vinylamide monomer does not include a sulfonic acid function. The fluid loss additive controls fluid loss at temperatures up to 350° F.
Well cementing
FERRELL JR JAMES C (author) / GALLAGHER LAUREN T (author) / BAZZI BILAL H (author)
2017-04-04
Patent
Electronic Resource
English
CEMENTING COMPOSITION, CEMENTING METHOD AND WELL DRILLING METHOD
| European Patent Office | 2015
| Engineering Index Backfile | 1947