Running tool
US8408309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jul 21, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An embodiment of a running tool for setting and testing a packoff seal of a well pipe hanger has an elongated stem having an axial passage, a body, a cam, a cam tail, a stem engagement element, and a piston. A method of setting and testing a packoff seal comprises rotating the stem relative to the body to a delivery position, thereby disengaging the engaging element from the stem. The stem moves axially downward relative to the body to land the packoff. The engagement element reengages the stem in a landing position. Fluid pressure is applied to the axial passage to set and seal the packoff, thereby moving the running tool to a set position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.