Patent · US Active

Treatment of subterranean formations with crosslinked fluids

US12319872B2 · kind B2 · utility

0Cited by

0References

6Claims

0Family size

Assignees

CNPC USA Corporation · US
Beijing Huamei, Inc. · CN
Xinjiang Oilfield Company · CN

Inventors

Lijun Lin · Sugar Land, US
Chuanxin Zhang · Beijing, CN
Guodong Wu · Beijing, CN
Bo Huang · Beijing, CN
Stephanie Yu · Houston, US

Key dates

Filing date	Sep 16, 2020
Grant date	Jun 3, 2025
Priority date	—
Expiry date	Sep 16, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/267
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed herein is a crosslinked HPG fluid system using a very low concentration of HPG polymer. The fluid system is able to be used at low HPG concentrations while maintaining stable viscosity for over two hours at elevated temperatures.

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