System for tracking and maintaining on on-grade horizontal borehole
US7896107B2 · kind B2 · utility
7Cited by
42References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2009 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Apr 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tracking receiver system is used to track the progress of a downhole tool along a subsurface path having a desired grade. The tracking receiver system is adapted to detect a reference line originating from a reference line receiver and to determine the position of the downhole tool along a desired subsurface path relative to the reference line. In an alternative embodiment the tracking receiver system may comprise a global positioning satellite system to provide information used to determine the position of the downhole tool relative to the desired subsurface path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.