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US 2019/0161669 A1Published application
Slurry comprising an encapsulated expansion agent for well cementing
AssigneeSchlumberger Technology Corporation
InventorsNicolas DROGER, Mickael ALLOUCHE, Katia DENNIS, Sylwia KOMOCKI
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Abstract
Methods to prepare a well cementing slurry include coating particles comprising an expanding agent with a component selected from the group consisting of a phenolic resin, a silica, a calcination product of a polysiloxane oil, and a combination thereof; and combining the coated particles with mix water and hydraulic cement to form a cement slurry for cementing a well.
Claims19
A method to prepare a well cementing slurry, comprising:
- coating particles comprising an expanding agent with a component selected from the group consisting of a phenolic resin, a silica, a calcination product of a polysiloxane oil, and a combination thereof;
- and
- combining the coated particles with mix water and hydraulic cement to form a cement slurry for cementing a well.
A well cementing slurry, comprising:
- water, a hydraulic cement, and a plurality of particles comprising an expanding agent coated with a component selected from the group consisting of a phenolic resin, a silica, a calcination product of a polysiloxane oil, and a combination thereof.
Dependencies are inferred from the claim text.