Completion and workover fluids
US4614601A · kind A · utility
7Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1985 |
| Grant date | Sep 30, 1986 |
| Priority date | — |
| Expiry date | Apr 2, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/925
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A completion and workover fluid is described, containing a soluble salt, a hydroxyethyl cellulose and at least one compound selected from 2-mercaptobenzimidazole compounds, 2-mercaptobenzothiazole compounds, 2-mercaptothiazoline and 2-thioimidazolidone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.