Whipstock assemblies with a retractable tension arm
US10364607B2 · kind B2 · utility
2Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Sep 27, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A whipstock assembly includes a whipstock providing a ramped surface, and a mill releasably coupled to the whipstock with a shear bolt and providing a mill profile. A tension arm is pivotably coupled to the whipstock and movable between a stowed position, where the tension arm is received within a cavity defined in the ramped surface, and an engaged position, where an engagement head of the tension arm mates with the mill profile to assume at least a portion of a tensile load assumed by the shear bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.