摘要：【中文】本发明涉及钻井设备技术领域，具体指一种水力振荡器感应组件；包括中空的固定器，以及水力振荡器的定子和螺杆转子，所述固定器的下端穿设于定子的上端口内，固定器下端的内壁上设有与螺杆转子上端部相对的感应器，螺杆转子的上端设有至少一个的感应标记；本发明结构简单，改装、维护、试验和运输非常方便，便于在现有水力振荡器上进行改进和推广，实现了螺杆转子运动时间、运动频率的准确记录，使水力振荡器的使用寿命和效果得到准确的评估。 【EN】The invention relates to the technical field of drilling equipment, in particular to a hydraulic oscillator induction assembly; the hydraulic vibrator comprises a hollow fixer, a stator of a hydraulic oscillator and a screw rotor, wherein the lower end of the fixer is arranged in an upper port of the stator in a penetrating manner, an inductor opposite to the upper end of the screw rotor is arranged on the inner wall of the lower end of the fixer, and at least one induction mark is arranged at the upper end of the screw rotor; the invention has simple structure, is very convenient to modify, maintain, test and transport, is convenient to improve and popularize on the existing hydraulic oscillator, realizes the accurate record of the movement time and the movement frequency of the screw rotor, and ensures that the service life and the effect of the hydraulic oscillator are accurately evaluated.

摘要：【中文】本发明提供一种适合于页岩气老区加密井的随钻封堵防漏油基钻井液，包括如下组分及其体积份数：油相与水相100份、主乳化剂2.4~3.2份、辅乳化剂0.6～1.0份、石灰1~3份、有机土1~3份、降滤失剂1~5份、封堵剂1~3份、10目的刚性粒子1~2份、80目的刚性粒子1.5~3份、100目的刚性粒子2~4份、80目的柔性变形粒子1.5~2.5份、100目的柔性变形粒子1.5~2.5份、加重剂0~100份。本发明产品具有良好的抗温稳定性、封堵性、防漏性，能适应不同压力层位钻井，具有一定的压裂液抗侵污能力，能够适应于页岩气老区加密井钻进施工。 【EN】The invention provides a plugging-while-drilling leakproof oil-based drilling fluid suitable for an encrypted well in a shale gas old area, which comprises the following components in parts by volume: 100 parts of oil phase and water phase, 2.4-3.2 parts of main emulsifier, 0.6-1.0 part of auxiliary emulsifier, 1-3 parts of lime, 1-3 parts of organic soil, 1-5 parts of filtrate reducer, 1-3 parts of plugging agent, 1-2 parts of 10-mesh rigid particles, 1.5-3 parts of 80-mesh rigid particles, 2-4 parts of 100-mesh rigid particles, 1.5-2.5 parts of 80-mesh flexible deformable particles, 1.5-2.5 parts of 100-mesh flexible deformable particles and 0-100 parts of weighting agent. The product of the invention has good temperature resistance stability, plugging property and leak resistance, can adapt to drilling at different pressure layers, has certain anti-contamination capability of the fracturing fluid, and can be suitable for drilling construction of the shale gas old area encrypted well.