Method and apparatus for reaming well bore surfaces nearer the center of drift
US9657526B2 · kind B2 · utility
1Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2014 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Jan 30, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a method and apparatus for increasing the drift diameter and improving the well path of the well bore, accomplished in one embodiment by cutting away material primarily forming surfaces nearer the center of the drift, thereby reducing applied power, applied torque and resulting drag compared to conventional reamers that cut into all surfaces of the well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.