多参数找水在油气水分析中的应用  

Application of multiple parameters water detection in oil-gas-water analysis

作　　者：白秀云[1] 韩志国[1] 闫宝东[1] 

机构地区：[1]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《大庆石油地质与开发》2007年第6期95-98,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：由于地面与井下的流体环境不同,井下流体产状与地面产状又有不同,多相流体间存在滑脱等影响,因此,找水录取到的产液及含水率值在两相分析的情况下与实际状况存在差距;引入流体力学理论建立滑脱速度模型,把多参数找水测得产液及含水通过气-液和油-水滑脱进行叠加校正,得到井下实际流体体积流量和含水值;把多参数找水测得井下状态的压力、温度等数据用于气液密度及溶解油气比的计算,再通过气态方程和气体压缩因子计算井下各测量点原油体积系数,建立各找水测量点的井下状态与地面标准状态的气-液流量及含水关系模型。从而,通过多参数找水的压力、温度、流量、含水等参数得到地面脱气原油、伴生气、溶解气、水的体积流量,克服了两相分析的不足。通过实际应用,收到较好效果。There is slip between multi-phase flowing, and there is difference between liquids production and water - cut according to water detection and those under real condition down hole. Due to the difference between ground and down hole condition, the performance of liquids down hole is different from that on ground. Based on fluid mechanics, the model of slip velocity is established. Through stack correction of gas-liquid and oil-water slip to liquid production and water-cut measured by multiple parameters water ＇detection , the actual fluids volume and water cut down hole can be got. Apply pressure and temperature got by multiple parameters water detection to calculation of gas-liquid density and dissolved oil-gas ratio, and then calculate crude oil volume factor based on gas function and gas compressibility factor, the model about the relation between gas-liquid flow volume and water cut both down hole and under ground standard conditions can be built. According to the parameters, pressure, temperature, flow volume, water cut, etc. , the volume flow rates of degassed oil, associated gas, solution gas and water cut on the ground can be obtained. It can meet the demands of three-phase production monitoring in oil field at present conditions, and the actual application results are better .

关 键 词：多参数 找水 油 气 水 滑脱速度 

分 类 号：TE353[石油与天然气工程—油气田开发工程]