落球黏度计对QK17-2油田原油黏温的影响  

Effect of the falling sphere viscometer on viscosity properties of the crude oil in QK17-2 oilfield

作　　者：郑继龙[1,2] 向靖[2] 翁大丽[1] 陈平[1] 运入轩 赵军[1] 胡雪[1] 

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452 [2]中国石油大学(北京)石油工程学院,北京102249

出　　处：《应用科技》2015年第3期81-84,共4页Applied Science and Technology

基　　金：国家重大专项子课题资助项目(2011ZX05024-002-001)

摘　　要：利用高温高压落球黏度计和高温高压转配样装置对QK17-2油田原油黏温特征进行了室内实验研究,分别测量了不同温度、不同压力条件下该油田原油和油水混合物的黏温及油藏条件下注入不同氮气量时油气混合液的黏温。研究结果表明,高含蜡导致QK17-2油田原油在一般高温下黏温异常增高,偏离黏温指数曲线;油水混合液的黏温随含水率变化存在极大值;注氮气达气油比为20以后,降黏效果不明显。The viscosity-temperature features of the crude oil of QK17-2 oil field were studied with high temperature-pressure falling ball viscometer and high temperature-pressure preparing and transferring equipment. The viscosity-temperature features of the oil-water mixture and crude oil under different temperatures and different pressures were measured. And the viscosity-temperature features of the oil-gas mixture under reservoir conditions with different ni-trogen injection volumes were also measured. The results show that the viscosity of QK17-2 crude abnormally rises under low temperatures because of the high wax content which deviates from the viscosity-temperature index curve. As temperatures rise, the viscosity temperature of oil-water mixture exists a maximum with the change of water ratio. Also the viscosity reduction efficiency is not obvious while the oil-nitrogen ratios are bigger than 20.

关 键 词：落球黏度计 油-水混合物 QK17-2油田 黏温 黏温特性 含水率 气油比 

分 类 号：TE357[石油与天然气工程—油气田开发工程]