Southwest Petroleum University

Pingquan Wang

Yang Bai

Pingya Luo

Mingyi Deng

Jinjun Huang

Dachuan Liang

Rusen Feng

Xinmin Zhang

Yongjun Guo

The present invention relates to the field of reagents for oil and gas wells, and discloses a plugging agent for improving bearing capacity and a preparation method of the plugging agent, wherein, the plugging agent contains water, bridging granules, packing granules, and a cementing material, and, based on 100 parts by weight of water, the content of the bridging granules is 3-15 parts by weight, the content of the packing granules is 5-23 parts by weight, and the content of the cementing material is 4-11 parts by weight. The plugging agent in the present invention can improve the bearing capacity of the formation during well plugging, is applicable to shielded temporary plugging against serious leakage loss during extra-deep well drilling, has efficient and quick plugging performance, and is especially applicable to plugging against serious leakage loss in a formation where the well depth is greater than 3,000 m and conventional plugging agents can't attain a satisfactory plugging effect.

Plugging agent for improving formation bearing capacity and preparation method thereof

Growing community of inventors

Chengdu, China

Pingquan Wang