Directional drilling motor
US9963938B2 · kind B2 · utility
20Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Apr 11, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/068
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling motor for directional drilling in a wellbore has a drill bit at a downhole end, a bent housing having a first bend spaced above the drill bit and defining a first angle, the first bend having an inside bend surface and an outside bend surface, and a guide element that biases the first bend toward the first angle when the bent housing is positioned within a straight section of the wellbore. The guide element may be a pad, a centralizer or a second bend in the bent housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.