Wireline-set tubing-release packer apparatus
US5449040A · kind A · utility
Inventors
Key dates
| Filing date | Oct 4, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Oct 4, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1293
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool, known as FM/WL Tool, utilized with a wireline adaptor kit would be secured to the lower end of a wireline setting tool. The adaptor kit would release from the tool when sufficient setting force is applied, and is retrieved with the wireline setting tool. The wireline setting tool provides for a telescoping action and sufficient force in order to push the outer parts down from the top as the inner mandrel of the tool and the stinger, top sub and bottom sub are pulled upward. The upward pull is transferred to a sleeve by a plurality of lugs on bottom sub assembly. This action causes the packer tool to set by compressing rubber elements and holding the elements compressed by a first upper set of slips and a second lower set of slips wedged between the casing and the upper cone and the lower cone. During the setting action, the pickup sleeve and parts attached will move down until the top slips are wedged against the top cone. The spring, which would be fully open when the tool is lowered downhole, will be compressed until the pickup sleeve adaptor shoulders against spring cap. A lock ring holds the spring compressed. Bottom sub assembly includes a threaded nut having lugs prot…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.