System and method for determining position within a wellbore
US8267172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2010 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Nov 1, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/098
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of locating a wellbore feature, comprising delivering a mechanical position determination tool into the wellbore, selectively causing an undulating curvature of the mechanical position determination tool in response to a change in a fluid pressure, moving the mechanical position determination tool along a longitudinal length of the wellbore, and sensing a change in resistance to continued movement of the mechanical position determination tool. A mechanical position location tool for a wellbore, comprising pressure actuated elements configured to cooperate to selectively provide an unactuated state in which the mechanical position location tool lies substantially along a longitudinal axis and the pressure actuated elements further configured to cooperate to selectively lie increasingly deviated from the longitudinal axis in response to a change in pressure applied to the mechanical position location tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.