一种覆岩离层注浆溢流处理方法
By constructing an in-well circulation and top overflow grouting method during the overburden separation grouting process, the problem of grouting overflow was solved, ensuring construction progress and environmental protection, and realizing the harmless development of the coal industry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 山西霍尔辛赫煤业有限责任公司
- Filing Date
- 2022-11-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have failed to effectively address the overflow problem during the grouting process for overburden separation, which affects construction progress and the environment, and is prone to causing pollution.
The well-killing fluid is pumped into the borehole and returned through the annular space between the borehole and the casing to create an in-well circulation, discharge the diluted slurry, and in the event of well-killing failure, the top overflow slurry drilling method is adopted to discharge the overflow slurry to a designated slurry discharge pool.
This effectively avoids spillage accidents at construction sites, ensures the smooth progress of grouting operations, and promotes the green and harmless development of the coal industry.
Smart Images
Figure CN115711105B_ABST