Difunctional phosphorus-based gelling agents and gelled nonaqueous treatment fluids and associated methods
US7163060B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides methods of treating a portion of a subterranean formation, one of which includes: providing a gelled nonaqueous treatment fluid that comprises a nonaqueous base fluid and a difunctional gelling agent that comprises a polyvalent metal salt of a bisorganophosphinic acid, a polyvalent metal salt of a bisorthophosphoric acid diester, and/or a polyvalent metal salt of a bisorganophosphonic acid monoester; and treating the portion of the subterranean formation. Methods of fracturing, providing some degree of sand control, cleaning a portion of a pipeline, treatment fluid compositions, and difunctional gelling agent compositions also are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.