Surge assembly with fluid bypass for well control
US11248442B2 · kind B2 · utility
0Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2019 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Dec 10, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of providing an underbalance in a wellbore that includes positioning a surge assembly within the wellbore; bypassing a differential chamber that extends along a portion of the length of the surge assembly when flowing fluid through a fluid passageway that extends along the length of the surge assembly; and placing the fluid passageway in fluid communication with the air chamber to create an underbalance in the fluid passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.