Apparatus and method for removing production-inhibiting liquid from a wellbore
US5501279A · kind A · utility
98Cited by
15References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1995 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Jan 12, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/121
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method are disclosed for continually and intermittently removing water from a wellbore which penetrates a solid carbonaceous subterranean formation, such as a coalbed, while concurrently removing methane from the formation. The apparatus utilizes a linear access means which facilitates switching the apparatus from a continuous water removal mode of operation to an intermittent water removal mode of operation using wireline retrievable tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.