Hydrogel and preparation method and use thereof, water plugging profile control agent
A hydrogel, glycidyl ether technology, applied in chemical instruments and methods, drilling compositions, etc., can solve hydrogel rheological properties, temperature-sensitive properties pH value response properties, swelling-de-swelling reversibility Problems such as poor shear resistance, to achieve the effect of easy industrial production, good application prospects, and easy realization
Active Publication Date: 2022-05-31
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
[0002] At present, the water plugging and profile control agents widely used in oil fields are difficult to meet the requirements of some high temperature, high salinity reservoirs and alkaline environments. Poor rheological properties, temperature sensitivity, pH response, swelling-de-swelling reversibility, and shear resistance
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[0096]
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Abstract
The invention relates to a hydrogel, a preparation method and application thereof, and a water plugging profile control agent. The hydrogel includes a polymer represented by the following structural formula: wherein, the R and the n are as defined in the description. The hydrogel has better rheological properties, temperature sensitivity, pH value responsiveness, swelling-de-swelling reversibility and shear resistance.
Description
Hydrogel, preparation method and use thereof, water plugging profile control agent technical field The present invention relates to petroleum exploitation technical field, relate in particular to hydrogel and preparation method and purposes thereof, water blocking and profile control agent. Background technique The water plugging and profile control agent widely used in the current oil field is difficult to satisfy some high temperature, high salinity oil reservoirs and alkaline environment. The main reason is that one of the components in the water plugging profile control agent in the related art, that is, the rheological properties and temperature sensitivity of the hydrogel Energy, pH response performance, swelling-unswelling reversibility, and shear resistance were all poor. Therefore, for the above deficiency, it is necessary to provide a kind of rheological properties with better rheological properties, temperature-sensitive properties, pH value responsiveness...
Claims
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IPC IPC(8): C08J3/075C08G81/00C09K8/504C09K8/508C08L87/00
CPCC08J3/075C08G81/00C09K8/5086C09K8/504C08J2387/00
Inventor 王俊王玲刘向斌王力张娜裴钰翟岩亮陈丽铎谭金岩
Owner NORTHEAST GASOLINEEUM UNIV