Methods for drilling multiple parallel wells with passive magnetic ranging
US10858929B2 · kind B2 · utility
7Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2016 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Nov 16, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method for drilling a second well with respect to a first well is disclosed. A first drill string having a known magnetic signature is disposed at a first depth in the first well. A second drill string is used to drill the second well. The second drill string includes a magnetometer that obtains a magnetic measurement of the first drill string during drilling of the second well. A processor uses the obtained magnetic measurement and the magnetic signature of the first drill string to steer the second drill string to drill the second well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.