Patent ID: 11945995
Assignee: CHINA UNIVERSITY OF PETROLEUM
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 2:
3. A method for preparing the temporary plugging agent of claim 1, comprising the following operations:
adding laponite to water and stirring until the laponite is completely dissolved, adding acrylamide and stirring until the acrylamide is completely dissolved, adding composite crosslinking agent and stirring until the composite crosslinking agent is completely dissolved, adding ammonium persulfate and stirring until the ammonium persulfate is completely dissolved to obtain a mixture; and
stirring and reacting the mixture at 40° C. until the mixture is gelatinous, and taking out and air-drying the mixture at 40° C. for 24 to 48 hours and then granulating to prepare the temporary plugging agent.