Sealing quality detection device and sealing quality evaluating method for gas extraction boreholes
US12140013B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Mar 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sealing quality detection device for gas extraction boreholes includes a detection host, a detection pipe, a sealing element, and a three-way pipe. A plurality of air inlets and a plurality of exhaust ports are formed above the detection host, a negative pressure injector is arranged in the detection host, a quick joint and a control switch are also arranged on the detection host, the quick joint is used to be connected with an underground wind pipe, the underground wind pipe is connected to an underground compressed air tube, and the control switch is used for starting and switching off the negative pressure injector in the detection host. A sealing quality evaluating method for gas extraction boreholes is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.