泡点压力处地层原油黏度预测  

Prediction of crude viscosity in the formation at bubble point

作　　者：张可[1] 李实[1] 马德胜[1] 陈兴隆[1] 

机构地区：[1]提高石油采收率国家重点实验室中油勘探开发研究院,北京100083

出　　处：《特种油气藏》2014年第2期86-88,92,共4页Special Oil & Gas Reservoirs

基　　金：国家重大基础研究计划"多孔介质中CO2地层油体系相态理论与数值模拟"(2011CB707304);国家油气重大专项"CO2-地层油体系关键参数应用方法"(2011ZX05016-001)

摘　　要：在分析300余个地层油样品高压物性测试数据的基础上,运用麦夸特法和通用全局优化法,利用气油比和油藏温度下地面原油黏度值,预测油藏温度下泡点压力处地层油黏度关系式。结果表明:通过与现有的黏度预测关系式对比,该预测关系式形式简单,便于现场快速计算,预测精度满足工程要求,同时为油藏工程方案设计及数值模拟器的修改完善提供了可靠的参考黏度关系式。On the basis of more than 300 data used for PVT test of formation crude sample,the relationship of crude viscosity in the formation at reservoir temperature and bubble point has been predicted from the GOR and surface crude viscosity data at reservoir temperature by means of Levenberg- Marquardt method and the universal global optimization. It is shown from the results that the predicted relationship is simple in form,easy for quick calculation on site as compared to the existing relationship for viscosity prediction. The prediction has an accuracy meeting the engineering requirement,and as a reference,provides reliable viscosity relationship for oil reservoir engineering design and improvement and perfection of numerical simulators.

关 键 词：泡点 地面油黏度 地层油黏度 气油比 预测 

分 类 号：TE311[石油与天然气工程—油气田开发工程]