钻井用水力振荡器阀组压降计算方法  

Methods for Calculation of Pressure Drop of the Valve Section of the Drilling Hydraulic Oscillator

作　　者：赵钰[1,2] 王鹏[1,2] 许凤华[1,2] 周廪 冯定[1,2] 涂忆柳 ZHAO Yu;WANG Peng;XU Feng-hua;ZHOU Lin;FENG Ding;TU Yi-liu(College of Mechanical Engineering,Yangtze University,Oil and Gas Drilling and Well Completion Tools Research Center Jinzhou 434023,China;Hubei Cooperative Innovation Center of Unconventional Oil and Gas,Yangtze University,Wuhan 430100,chin)

机构地区：[1]长江大学机械工程学院湖北省油气钻完井工具工程技术研究中心,荆州434023 [2]长江大学非常规油气湖北省协同创新中心,武汉430100

出　　处：《科学技术与工程》2018年第15期94-98,共5页Science Technology and Engineering

基　　金：国家自然科学基金(51275057);长江大学青年基金(2016cqn30)资助

摘　　要：水力振荡器通过螺杆旋转驱动阀组运动,使过流面积发生周期性变化,导致阀组两端压降产生相应变化,从而产生周期性的轴向力,实现水力振荡效果。为较为准确地得到水力振荡器阀组两端压降,根据阀组流道的结构,建立阀组流道有限元模型。运用滑移网格和Realizable k-ε湍流模型对不同尺寸的阀组组合进行流体仿真分析,并结合试验数据验证仿真模型和结果的正确性。仿真结果对水力振荡器的阀组的参数设计有重要的指导意义。The hydraulic oscillator drive the movement of valve by the rotary screw,changing flow area periodically,resulting in the pressure drop of both ends of the valve section is changed to produce the corresponding axial force,achieving the hydraulic effect. In order to obtain the pressure drop at the two ends of the valve section more accurately,a finite element model was established that is based on the structure of the flow channel of the valve section. Using the sliding mesh and Realizable k-ε turbulence model to emulate and analysis the various combinations of the valve section,and combine with the test data to verify the correctness of the simulation model and results. The results of simulation have important guiding significance for the parameter design of the valve section of the hydraulic oscillator.

关 键 词：水力振荡器 动阀 定阀 压降 有限元 仿真 

分 类 号：TE921[石油与天然气工程—石油机械设备]