Closed loop multiphase underbalanced drilling process
US7654319B2 · kind B2 · utility
4Cited by
16References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2008 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Feb 6, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides apparatus and methods for handling fluids returning from a well. The fluids are introduced into a separator and a separated gas stream is recovered or recycled. The gas stream may comprise more than one phase. The separated gas stream is urged through a multiphase pump before it is recovered. Alternatively, the return fluids may pass through a multiphase pump before it is introduced into the separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.