Method for minimizing delays while drilling using a magnetic ranging apparatus
US8952700B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V11/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system is provided for minimizing delays in a magnetic ranging method. Delays are minimized by establishing synchronicity between triggering of a three-axis magnetometer and energization of a solenoid assembly deployed in the borehole being drilled and the first borehole, respectively. Synchronicity enables measuring various components of the alternating magnetic field created by energization of the solenoid assembly by the magnetometer, the moment the solenoid assembly is energized. The recorded components are used for computation of steering data for drilling the second borehole relative to the first borehole. The steering data can be determined at the surface or downhole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.