基于油嘴阀门特性的天然气井流量预测方法  

Natural Gas Well Flow Prediction Method Based on Nozzle Valve Characteristics

作　　者：马文礼 王艳芝 MA Wen-li;WANG Yan-zhi(PetroChina Karamay Petrochemical Co.,Ltd.,Karamay 834003,China;Beijing Key Laboratory of Process Fluid Filtration and Separation,China University of Petroleum-Beijing,Beijing 102249,China)

机构地区：[1]中石油克拉玛依石化有限责任公司,新疆克拉玛依834003 [2]中国石油大学(北京)过程流体过滤与分离技术北京市重点实验室,北京102249

出　　处：《管道技术与设备》2019年第3期23-26,共4页Pipeline Technique and Equipment

基　　金：国家自然科学基金(51776225,51876221)

摘　　要：在流体过油嘴的质量守恒方程、动量守恒方程及能量守恒方程的基础上,考虑了流体过油嘴阀门喉部的不可逆损失,推导了适用于天然气井流量计算的油嘴模型,并给出了该模型流量系数的校正算法。该模型的现场应用结果表明,至少有90%的数据样本点的相对误差落在10%以内,且能够较好地适应调产的情况,基本满足现场要求。Based on the mass conservation equation,momentum conservation equation and energy conservation equation of fluid flowing through the nozzle,and considering the irreversible loss of the valve throat of fluid flowing through the nozzle,the nozzle model suitable for the flow calculation of natural gas well is deduced,and the correction algorithm of the flow coefficient of the model is given.The field application results show that the relative error of at least 90% data points falls within 10%,and it can well adapt to the situation of production adjustment,which basically meets the field application requirements.

关 键 词：天然气井 油嘴阀门 流量预测 流量系数 虚拟流量计 多相流 

分 类 号：TE863[石油与天然气工程—油气储运工程]