Test piece holder for coalbed fracturing
US11630049B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2022 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Nov 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/616
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test piece holder for coalbed fracturing comprises a pressure chamber, first sliding rods, second sliding rods, third sliding rods, fourth sliding rods, fifth sliding rods, oil cylinders and a sealing ring, upper and lower ends of a test piece are both provided with an electrode needle and a gas-guide and liquid-guide conducting bolt, the gas-guide and liquid-guide conducting bolt has a hollow rod structure, an inside end of the gas-guide and liquid-guide conducting bolt located above is communicated with a water-gas channel and an outside end of the gas-guide and liquid-guide conducting bolt located above is a water-gas outlet, an inside end of the gas-guide and liquid-guide conducting bolt located below is communicated with the water-gas channel and an outside end of the gas-guide and liquid-guide conducting bolt located below is respectively provided with a gas inlet and a water inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.