Apparatus and method for forming multiple plugs in a wellbore
US7472752B2 · kind B2 · utility
21Cited by
29References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2007 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Apr 13, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/142
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for forming plugs in a wellbore, according to which a first volume of slurry is introduced into a work string in a wellbore so that it flows through the work string and discharges before hardening to form a plug. A second volume of slurry is also introduced into the work string so that it flows through the work string and discharges before hardening to form an additional plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.