Patent · US Active

Water-based drilling fluid for protecting high-permeability reservoirs, and preparation method and use thereof

US10040984B1 · kind B1 · utility

0Cited by

3References

15Claims

0Family size

Assignee

CHINA UNIVERSITY OF PETROLEUM (EAST CHINA) · CN

Inventors

Kaihe Lv · Qingdao, CN
Jinsheng Sun · Qingdao, CN
Jingping Liu · Beijing, CN

Key dates

Filing date	Nov 10, 2017
Grant date	Aug 7, 2018
Priority date	—
Expiry date	Nov 10, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B21/003
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed herein are water-based drilling fluids for protecting high-permeability reservoirs. The drilling fluid comprises bentonite, a tackifier, a thinner, a filtrate reducer, an anti-collapse agent, a reservoir protectant, a lubricant, and water.

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