Gravel pack liner assembly and selective opening sleeve positioner assembly for use therewith
US4105069A · kind A · utility
121Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Jun 9, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved liner assembly for open hole, multi-zone gravel pack completions employing full opening gravel and cementing collars and full opening inflatable packers. The valve mechanism of each full opening collar and full opening packer comprises an inner valve sleeve operated solely by vertical reciprocation by a drill string received therein and carrying an improved selective opening sleeve positioner assembly on the lower end thereof. A method of gravel packing and cementing utilizing the improved liner assembly and selective opening sleeve positioner assembly is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.