水平井气水变形泡状流测井分析模型实验研究  

EXPERIMENTAL STUDY OF GAS-WATER LOGGING ANALYTICAL MODEL FOR ELONGATED BUBBLE FLOW IN HORIZONTAL WELL

作　　者：路菁[1,2] 吴锡令[1,2] 

机构地区：[1]中国石油大学(北京)资源与信息学院,北京昌平102249 [2]"油气资源与探测"国家重点实验室.中国石油大学(北京),北京昌平102249

出　　处：《西南石油大学学报（自然科学版）》2011年第1期83-87,14,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家科技重大专项子课题"多相流测井配套技术及成像测井技术研究"(2008ZX050-020-05)

摘　　要：变形泡状流是水平井气水两相石油开发测井过程中最为常见的流型之一,为建立适用于此流型的测井分析模型,在16m长、可任意倾斜的透明实验环路上,以空气和自来水为介质,利用实际测井仪器串,对井斜75°～90°达到稳定的气水变形泡状流动进行实验测量,通过把握实验过程中变形泡状流的流动特性及机理,选择以漂移流动模型为基础进行理论推导修正。基于实验数据的模型检验证明,实验数据符合修正后模型反映的流动规律。依据实验数据计算的相分布系数与漂移速度系数,体现了水平及近水平井眼中仪器串对井筒内原有流动状态的干扰。分析模型能同时反映水平井气水变形泡状流测井过程中的流动机理以及仪器测量对流型的影响,适用于水平井气水变形泡状流测井解释。Elongated bubble flow is one of the most common flow patterns occurring in gas-water flow in process of production logging in horizontal wells.In order to build an adequate logging analytical model for EB flow,experiments of gas-water flow are conducted on a transparent 16 meters long,inclinable test loop using air and tap water as test media.The experimental pipe inclination ranges from 75° to 90°(horizontal) and production logging tool-string measured inside the pipe while mixed fluids reach steady-state.By grasping the characteristics and mechanisms of EB flow during logging experiments,drift flux model is chosen to develop and modify a new model.The modified drift-flux model verifies that experimental data obey the law of the new model.Distribution and drift velocity coefficients from experimental data reflect the influence on EB flow by production logging tool-string in horizontal or near horizontal borehole.The analytical model describes both mechanisms of EB flow and influences of measurement processing,so it is more adequate to interpret gas-water EB flow logging data in horizontal wells.

关 键 词：水平井 气水两相 变形泡状流 石油开发测井 漂移流动模型 测井分析模型 实验研究 

分 类 号：TE151[石油与天然气工程—油气勘探]