Patent · US Active

Nanometer plugging water-based drilling fluid and preparation method and use thereof

US11162010B2 · kind B2 · utility

1Cited by

1References

2Claims

0Family size

Assignee

Southwest Petroleum University · CN

Inventors

Yang Bai · Beaverton, US
Pingya Luo · Chengdu, CN
Guojun Li · Chengdu, CN
Cheng Li · Beijing, CN
Hao Zhang · Nanhu, CN
Yan Cheng · Chengdu, CN

Key dates

Filing date	Jan 21, 2020
Grant date	Nov 2, 2021
Priority date	—
Expiry date	Jan 21, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/34
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A nanometer plugging water-based drilling fluid and preparation method and use thereof are within this disclosure. The nanometer plugging water-based drilling fluid comprise a nanometer plugging agent. The nanometer plugging agent may be surface modified SiO2 powder with the surfactant. The surfactant may be sodium dodecyl benzene sulfonate and/or sodium dodecyl sulfate. The nanometer plugging water-based drilling fluid may perform effective anti-collapse of stratum and maintain the stability of stratum.

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