Wellbore tool orientation
US5409060A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1994 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Apr 4, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B29/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention includes, in one embodiment, a receptacle for use in orienting a tool or member in a wellbore or in a tubular with respect to an anchor (or other member) anchored in the wellbore or tubular. In one aspect the receptacle has hollow cylindrical body with a tapered nose and a lower alignment assembly in a bottom of the hollow body member. The lower alignment assembly receives and releasably holds a top portion of the anchor and facilitates its movement through and orientation with respect to the receptacle. In one aspect the receptacle also includes an upper locking assembly which receives and locks onto the anchor. An anchor according to this invention has a guide key according to this invention with dual opposed carved surfaces which co-act with curved surfaces on the tapered nose of the receptacle's body to facilitate movement of the receptacle in a correct orientation down over the top to the anchor. A survey tool according to this invention has an orientation indicating device secured to an orientation assembly according to the invention. A split lock ring according to the invention has a lower inclined surface on a body thereof to enhance locking engagement…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.