Composite multiple zone test tool
US3987847A · kind A · utility
5Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Jul 17, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1295
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An oil well type of tool for testing a plurality of formations in a single trip into the hole. It has a full bore test tool which has a retrievable packer for making conventional tests. In addition there are a plurality of bridge plugs releasably connected in series below the test tool for plugging the hole above each formation after it is tested, without any additional trips into the hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.