Well treatment using ball sealers
US5309995A · kind A · utility
39Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Mar 19, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/138
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Ball sealers comprising a polyetheretherketone are introduced into a well to seal well perforations and divert fluid therein. In the preferred embodiment the ball sealers have a density less than the treating fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.