Patent · US Active

Pressure-bearing plugging agent and preparation method and use thereof

US11453814B2 · kind B2 · utility

0Cited by

0References

12Claims

0Family size

Assignee

Southwest Petroleum University · CN

Inventors

Yang Bai · Beaverton, US
Lingfeng Wu · Chengdu, CN
Pingya Luo · Chengdu, CN
Haibo Liang · Beijing, CN
Wen Xu · Chengdu, CN
Wenzhe Li · Middletown, US
Feng-Wei Dai · Beijing, CN
Guancheng Jiang · Beijing, CN
Gang Xie · Nanhu, CN
Jiading Deng · Chengdu, CN

Key dates

Filing date	Oct 19, 2021
Grant date	Sep 27, 2022
Priority date	—
Expiry date	Oct 19, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K8/508
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present disclosure a pressure-bearing plugging agent, comprises a core, a first coating layer and a second coating layer which are sequentially coated on an outer surface of the core, wherein the core is made of a water-absorbing swellable material, the first coating layer is a paraffin layer, and the second coating layer is obtained by cementing the rigid particles with an adhesive.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.