一种防冒浆混动自锁井口装置
By designing a self-locking wellhead device to prevent slurry leakage, the high-pressure slurry energy is used to achieve rapid sealing, which solves the problem of slurry leakage during drilling and improves construction efficiency and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GENERAL PROSPECTING INSTITUTE OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
In coal mine drilling operations, slurry is prone to overflow, making drilling impossible and impacting the ecological environment. Existing technologies are insufficient to effectively seal the boreholes.
A self-locking wellhead device for preventing slurry leakage is designed. It adopts a plugging component and a mechanical locking module. It utilizes the energy of high-pressure slurry to achieve millisecond-level start-up. The mechanical locking module applies mechanical force to the valve plate to completely eliminate gap jets and improve the sealing level.
It effectively prevents slurry from gushing out of the borehole, reduces ecological and environmental risks, saves environmental restoration costs and time, and achieves rapid-response sealing, adapts to different drill rod outer diameters, and improves construction efficiency.
Smart Images
Figure CN120684142B_ABST