Intra-layer reinforcement method, and consolidation and reconstruction simulation experiment system and evaluation method for gas hydrate formation
US11905812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2022 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Apr 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0246
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An intra-layer reinforcement method, and a consolidation and reconstruction simulation experiment system and an evaluation method for a gas hydrate formation are provided. In the intra-layer reinforcement method, the formation reconstruction and fracturing grouting reinforcement technologies are combined; a fracturing grouting process is adopted to create fractures in the gas hydrate formation; and a consolidation liquid enters the fractures and penetrates into the formation through a pressure difference to form a reinforcement with a ribbed slab structure and a specified strength and permeability, which supports the formation to achieve collapse prevention and sand prevention. A specific consolidation and reconstruction simulation experiment system is adopted, where the necessary conditions for the generation and decomposition of a hydrate are tested, and the fracturing, formation consolidation, and cementing experiments are simulated to study a rational exploitation method of a gas hydrate, thereby solving the problem of sand production of the hydrate layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.