Method and apparatus for testing wells
US3969937A · kind A · utility
27Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1975 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Sep 12, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method and apparatus for testing wells where extremely high temperatures and pressures are to be encountered in the zone under test. The apparatus provides means for testing and trapping samples of well fluid from the formation in the zone under test for removal from the well bore with substantial reduction in sample pressure at the ground surface. The method permits confining the well fluid under test within the well bore near the zone under test to minimize the possibility of hazardous well fluids reaching the ground surface other than as trapped samples in expandable sampler chambers or otherwise safely controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.