扭力冲击器 工具原理  Torsion impactor Tool principle

       扭冲工具是一个安装于螺杆钻具/钻铤和PDC钻头之间的管状工具。在其内部靠近钻铤一端， 有一个泥浆流量分配器，它将具有200-400马力巨大功率的泥浆二次分配到管状工具内。

       来源于泥浆的巨大能量使得工具内的冲击锤的两个动力部分相互反转起来，产生周向上的、均匀恒定的高频冲击力，这种频率达到750-1500次每分钟，而且集中均匀地给到了整个钻头体上。

       这样对钻头的井下振动（横向/纵向/扭向振动或共振 ）起到了一个平衡和稳定的作用。

       The torsion tool is a tubular tool installed between the downhole drilling motor/drill collar and the PDC bit. At the end near the drill collar, inside there is a mud flow distributor , which distributes the mud with a huge power of 200-400 horsepower to the tubular tool for a second time.

       The huge energy from the mud makes the two power parts of the impact hammer in the tool reverse each other, generating a circumferential, uniform and constant high-frequency impact force. This frequency reaches 750-1500 times per minute, and concentratedly and evenly give it to the entire drill body.

       This has a balanced and stable effect on the downhole vibration (lateral/longitudinal/torsional vibration or resonance) of the drill bit.

水力振动器 工具原理  Hydraulic oscillator Tool principle

       水力脉冲轴向振荡钻井技术是将钻井液产生压力脉冲的液压能转化为机械能， 通过钻柱的轴向振荡来减小钻柱与井眼之间的静摩擦力，从而改善钻压传递。

       钻具轴向振荡首先可以通过静、动摩 擦力转化减阻，而且通过改变摩擦力的方向，当振荡发生时，管壁上某一点会在一定振幅内来回振荡，如果管柱的叠加运动速度方向改变，则摩擦力的方向也改变， 从而减小了管柱与井壁间的总摩擦力。

       The hydraulic pulse axial oscillation drilling technology converts the hydraulic energy of the pressure pulse generated by the drilling fluid into mechanical energy, and reduces the static friction between the drill string and the borehole through the axial oscillation of the drill string, thereby improving the bit weight transmission.

       The axial oscillation of the drilling tool can firstly transform the static and dynamic friction to reduce the drag, and by changing the direction of the friction, when the oscillation occurs, a certain point on the pipe wall will oscillate back and forth within a certain amplitude. If the superimposed movement speed direction of the pipe string changes, the direction of friction also changes, thereby reducing the total friction between the pipe string and the well wall.
 

液力冲击马达 工具原理  Hydraulic driving motor 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.