Well treatment fluids and methods for the use thereof
US6432885B1 · kind B1 · utility
41Cited by
29References
57Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1999 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Aug 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a well treatment fluid and a method to treat an/or fracture a subterranean formation comprising:injecting a well treatment fluid into the formation at sufficient pressure to fracture the formation wherein the fluid comprises:(a) one or more amphoteric surfactants;(b) water; and(c) one or more nonaqueous solvents;(d) optionally, an acid forming compound, and(e) provided that if the acid forming compound is present a hydrophilic alcohol may also be optionally present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.