Patent · US Active

Method of forming fluid impermeable plug in a subterranean formation

US9868892B2 · kind B2 · utility

2Cited by
34References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 18, 2013
Grant dateJan 16, 2018
Priority date—
Expiry dateMar 17, 2035

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B33/138
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Water and gas flow into a subterranean reservoir may be reduced by pumping into the reservoir a multi-aldehyde crosslinking agent and a low molecular weight polyacrylamide capable of crosslinking with the crosslinking agent. The reaction product forms a gel plug impermeable to water and gas.

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