一种具有减阻提速双作用的钻井工具
By combining oscillating subs and pulse generating subs, and utilizing the coupling of hydraulic differential and helical springs, vibration and impact forces are generated, solving the problem of high friction between the drill string and the wellbore, thus reducing friction and resistance of the drill string, improving rock breaking efficiency, and extending the tool's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHEAST GASOLINEEUM UNIV
- Filing Date
- 2023-11-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hydraulic oscillators have problems in oil drilling, such as easy wear of rubber parts, complex and costly turbine-type structures, and poor stability of jet-type structures. These problems lead to high friction between the drill string and the well wall, resulting in pressure drag and affecting drilling speed.
By combining oscillating subs and pulse generating subs, and utilizing the hydraulic differential between the plug and the central flow channel and the coupling of the helical spring, periodic vibration and axial impact force are generated. Through the valve and bushing made of high-strength, high-toughness, wear-resistant alloy steel, friction reduction and drag reduction of the drill bit are achieved.
It effectively reduces friction between the drill string and the well wall, increases drilling speed, extends tool life, reduces manufacturing costs, and has a simple structure that is easy to install and maintain.
Smart Images
Figure CN117365274B_ABST