Controllable downhole drilling and completion tool separating device and their method of use
US11988055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2023 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Jan 3, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B31/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A controllable downhole drilling and completion tool separating device and their method of use are provided. The device includes an upper mandrel connector, an outer sleeve, a claw clamp sleeve, a claw clamp locking ring, a mandrel sleeve, a lower connector, a piston ring and a pressure bearing ball. The upper end of the lower connector is on the outer side of the upper connector in a sleeving mode. A first annular cavity is between the lower connector and the upper connector. The piston ring is on the outer side of the upper connector in a sleeving mode and located in the first annular cavity. The claw clamp sleeve and the outer sleeve are sequentially arranged on the outer side of the upper connector in a sleeving mode. A second annular cavity is communicated with the first annular cavity and formed between the claw clamp sleeve and the upper connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.