Buffering device for preventing drilling tool from being stuck in deep well drilling
Through the synergistic effect of the disc spring group and the damper and the gradient flow channel design, the drilling problems caused by radial load and rock chip accumulation in deep well drilling are solved, and efficient well wall finishing and mud chip carrying are achieved, reducing the risk of drilling and maintenance costs.
CN120401973AActive Publication Date: 2025-08-01POWERCHINA JIANGXI ELECTRIC POWER ENGINEERING CO LTD
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Patent Information
- Application Number
- CN202510726892.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2045-06-03
AI Technical Summary
Technical Problem
Existing deep well drilling devices are difficult to cope with radial loads and rock chip accumulation in complex formations, resulting in drilling problems, and the maintenance cost of the integrated structure is high.
Method used
The disc spring group and the damper work together, combined with the ball assembly and gradient flow channel design, realize the axial-radial composite unblocking mechanism, dynamically adjust the mud pressure distribution, and improve the well wall trimming and mud chip carrying efficiency through the split reamer and replaceable counterweight design.
Benefits of technology
Significantly reduce the probability of drilling, extend the service life of the device, reduce downtime and maintenance time, and reduce operation and maintenance costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of deep well drilling, in particular to a deep well drilling anti-jamming buffer device which comprises a first connecting piece, a threaded groove is formed in the upper portion in the first connecting piece, a first through hole is formed in the first connecting piece, and a limiting block is installed on the lower portion of the first connecting piece. The second connecting piece is connected to the lower portion of the first connecting piece in a sliding mode, a threaded groove is formed in the middle of the second connecting piece, the shielding piece is installed on the second connecting piece, and the disc spring is installed between the second connecting piece and the first connecting piece. Through the synergistic effect of the disc spring set and the damper, nonlinear absorption of axial impact energy is achieved, radial self-adaptive aligning of the ball assembly is matched, the multidirectional load of the drill rod in a complex stratum and the gap adjusting function of the inclined face of the shielding piece and the reamer are effectively balanced, mud pressure distribution can be dynamically optimized, and the drilling efficiency is improved. And through combination of reaming cutting and ball resistance reduction, an axial-radial composite jam releasing mechanism is formed, and the probability of jamming of the drill is remarkably reduced.
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