水平井气水两相阵列光纤持率计实验及解释方法研究  

Research on the experiment and interpretation method of gas-watertwo-phase array fiber holdup meter in horizontal wells

作　　者：郭海敏[1] 牛月 张怡然 卢鑫 GUO Haimin;NIU Yue;ZHANG Yiran;LU Xin(Key Laboratory of Exploration Technologies for Oil and Gas Resources,Ministry of Education(Yangtze University),Wuhan 430100,Hubei;Reservoir Performance Monitoring Center,Shengli Oilfield Company,SINOPEC,Dongying 257000,Shandong;School of Geophysics and Petroleum Resources,Yangtze University,Wuhan 430100,Hubei)

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北武汉430100 [2]中国石化胜利油田分公司油藏动态监测中心,山东东营257000 [3]长江大学地球物理与石油资源学院,湖北武汉430100

出　　处：《长江大学学报（自然科学版）》2023年第5期81-90,共10页Journal of Yangtze University(Natural Science Edition)

基　　金：国家自然科学基金项目“页岩气水平井气水两相生产测井模拟实验研究”(41474115)。

摘　　要：针对低产水平井井内流体流型不易预测的问题,在分析阵列光纤持率计测井原理及各传感器响应情况的基础上,借助多相流动模拟实验设备进行模拟实验研究,利用实验数据对比研究距离反比加权插值算法和高斯径向基插值算法这两种适用于低产水平井气水两相流流型的持率计算方法。利用空气和自来水模拟井下气水条件,分别设置气、水流体总流量300 m^(3)/d和500 m^(3)/d,每个流量条件下的含水率分别是15%、30%和80%,实验包括单相刻度实验和气水两相流流型实验。研究结果表明,距离反比加权插值算法的相对误差小于15%,而高斯径向基插值算法的相对误差小于10%。表明高斯径向基插值算法在低产水平井情况下适用于处理解释阵列光纤持率计测井数据。In view of the difficulty in predicting the fluid flow pattern in low-production horizontal wells,on the basis of analyzing the logging principle of the array fiber holdup meter and the response of each sensor,the multiphase flow simulation experimental equipment was used to carry out a simulation experiment research,and the experimental data were used to compare and study the inverse distance weighted interpolation algorithm and Gaussian radial basis interpolation algorithm,which are suitable for calculating the holdup of gas-water two-phase flow in low-production horizontal wells.Using air and tap water to simulate downhole gas-water conditions,the total flow of gas-water fluid was set to 300 m^(3)/d and 500 m^(3)/d respectively,and the water content under each flow condition was 15%,30%,and 80%,respectively.The experiments include single-phase calibration experiments and gas-water two-phase flow experiments.The research results show that the relative error of the inverse distance weighted interpolation algorithm is less than 15%,while the relative error of the Gaussian radial basis interpolation algorithm is less than 10%.It shows that the Gaussian radial basis interpolation algorithm is suitable for processing and interpreting the logging data of the array fiber holdup meter in the case of low-production horizontal wells.

关 键 词：生产测井 水平井 气水两相流流型 持水率 

分 类 号：TE132.14[石油与天然气工程—油气勘探]