液力冲击马达 Hydraulic driving motor
工具原理 Tool principle
钻井液力冲击马达在旋转提供扭矩的同时，产生高频的纵向冲击力来提高钻进过程中钻压的传递及钻进的效率。
液力冲击马达将普通马达产生的横向震动，转换成轴向的冲击力，液力冲击马达装有液动短节，产生的轴向力传递到螺杆本体，螺杆本体产生拉拽力带动钻柱高频低幅的向下蠕动，使工具产生最大的效率。
The drilling hydraulic driving motor generates high-frequency longitudinal impact force while rotating to provide torque to improve the transmission of weight on bit and the efficiency of drilling during the drilling process.
The hydraulic driving motor converts the lateral vibration generated by the ordinary motor into an axial impact force. The hydraulic driving motor is equipped with a hydraulic nipple, the axial force generated is transmitted to the body of downhole drilling motor, and the body generates a pulling force to drive the drill string high-frequency and low-amplitude creeping downwards allows the tool to produce maximum efficiency.
工具特点 Tool features
通过马达的扭矩带动限流阀改变过流面积大小产生周期性水力冲击力变化，传递到增幅装置中进行力度控制及调整,大大增加了冲击力的稳定性及力度。
液力冲击马达产生22-24Hz振动，显著降低钻杆与井壁的摩阻，且在钻头与地层之间形成一个规则的敲击振动，生成地层微裂缝，大大提高钻井效率。
液力冲击装置可以有效的增加冲击力并配合马达产生全方位的三维振动，提高工具的能量利用率，增加工具可靠性。
液力冲击马达动力部分采用全新的加工工艺使其功率输出大于普通螺杆的25%以上：
注胶：采用全新的热浇注模式，完全消除了气泡和应力，提升了定子的生产质量，精度控制精准，并确保了定子寿命。
加工：采用全新一次成型技术，加工精度大幅提高，可以保证线型啮合更好，输出扭矩更大。
The torque of the motor drives the flow limiting valve to change the flow area to produce a periodic hydraulic impact force change, which is transmitted to the amplifying device for strength control and adjustment, which greatly increases the stability and strength of the impact force.
The hydraulic driving motor generates 22-24Hz vibration, which significantly reduces the friction between the drill pipe and the borehole wall, and forms a regular percussion vibration between the drill bit and the stratum, generating stratum micro-fractures, and greatly improving drilling efficiency.
The hydraulic driving device can effectively increase the impact force and cooperate with the motor to generate omni-directional three-dimensional vibration, improve the energy utilization rate of the tool, and increase the reliability of the tool.
The power part of the hydraulic driving motor adopts a new processing technology to make the power output more than 25% of the ordinary downhole drilling motor:
Glue injection: The use of a new hot casting mode completely eliminates air bubbles and stress, improves the production quality of the stator, has accurate control of precision, and ensures the life of the stator.
Processing: The new one-step molding technology is adopted to greatly improve the processing accuracy, which can ensure better linear meshing and greater output torque.
性能对比 Performance comparison
动力端-马达的改进及提高 Power end-improvement and enhancement of the motor
螺杆钻具技术参数表 Technical parameter table of downhole drilling motor
注：可根据客户要求设计不同型号的液力冲击马达
Note: Different types of hydraulic driving motors can be designed according to customer requirements.
