水力振动器 Hydraulic oscillator
工具原理 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.
减阻增压提速工具主要由动力短节、盘阀总成和振荡短节组成。
动力短节: 由一个动力短节组成, 来驱动阀片做往复运动
盘阀总成: 产生压力脉冲, 脉冲的频率与经过的流量成正比
振荡短节: 将压力脉冲转化为轴向运动
The drag reduction, pressurization and speed-increasing tool is mainly composed of a power nipple, a disc valve assembly and an oscillating nipple.
Power nipple: Composed of a power nipple to drive the valve plate to reciprocate
Disc valve assembly: Generate pressure pulse, the frequency of the pulse is proportional to the passing flow rate
Oscillation nipple: Convert the pressure pulse into an axial movement
工具特点 Tool features
改善井下钻压传递效果 Improve downhole weight on bit transmission effect
有效提高机械钻速 Effectively increase rate of penetration
明显降低摩阻 Significantly reduce friction
与MWD/LWD兼容 Compatible with MWD/LWD
与各种钻头均配合良好 Good coordination with various drill bits
动力部分：采购国外先进技术，马达的优化线性设计，提高振荡频率，达到16-17HZ；动力端具备工作稳定，适应性强等优点；
独特的定阀设计，可以根据现场的排量，选择安装合适的动阀；
双压腔的设计：压耗低，压耗在400-500PSI，震动平稳，提高振动力，震动幅度在3-10mm；
震动温和，不会对仪器信号产生干扰，不会损坏钻头；
Power part: Procurement of foreign advanced technology, optimized linear design of the motor, and increase the oscillation frequency to 16-17HZ; the power end has the advantages of stable work and strong adaptability;
Unique fixed valve design, you can choose and install a suitable moving valve according to the displacement of the site;
Double pressure chamber design: low pressure loss, pressure loss is 400-500PSI, vibration is stable, and vibration force is improved, and the vibration amplitude is 3-10mm;
The vibration is mild, will not interfere with the instrument signal, and will not damage the drill bit;
规格型号 Specification
