Multiple test cased hole formation tester with in-line perforation, sampling and hole resealing means
US5765637A · kind A · utility
33Cited by
21References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Nov 14, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/116
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for perforating a wall, such as the casing wall of a well hole, taking a sample of the fluids which may be behind the wall, and subsequently sealing the perforation so formed in the wall, wherein the perforating portion, the sampling portion and the sealing portion are operably disposed in the apparatus, so as to permit all of the perforating, sampling and sealing functions to be carried out without substantial movement of the apparatus between functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.