Cutting pipes in wellbores using downhole autonomous jet cutting tools
US11624265B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2021 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Nov 12, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole autonomous jet cutting tool includes a main body with a generally cylindrical configuration. The main body includes a locking unit actuable to engage the tool to an inner surface of the pipe, a hydraulic motor with a rotor and a stator, and a rotatable jet cutting nozzle assembly operable to emit a stream of fluid to cut the pipe. The tool also includes a sensor module to detect interactions between the pipe and walls of the wellbore and a control unit in electronic communication with the sensor module and the locking unit. The control unit can identify, based on output of the sensor module, a location where interaction between the pipe and the walls of the wellbore limits downhole movement of the pipe, actuate the locking unit to engage the tool in the inner surface of the pipe, and initiate the stream of fluid from the nozzle assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.