Surface gas evaluation during controlled pressure drilling
US8899348B2 · kind B2 · utility
17Cited by
16References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2010 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Jul 7, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/082
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method have a choke in fluid communication with a rotating control device. The choke controls flow of drilling mud from the rotating control device to a gas separator during a controlled pressure drilling operation, such as managed pressure drilling (MPD) or underbalanced drilling (UBD). A probe is in fluid communication with the drilling mud between the choke and the gas separator. During operations, the probe evaluates gas in the drilling mud from the well passing from the choke to the gas separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.