南华201区块高压物性实验研究  

Experimental research on high pressure physical properties of Nanhua 201 block

作　　者：徐敏 路盼盼 薛龙龙 王佳俊 杨昌华 XU Min;LU Panpan;XUE Longlong;WANG Jiajun;YANG Changhua(College of Petroleum Engineering,Xi'an Shiyou University,Xi'an Shaanxi 710065,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《石油化工应用》2022年第3期108-110,共3页Petrochemical Industry Application

摘　　要：地层油高压物性参数主要受温度、压力等因素的影响,而地层油自身的组成也对其有着重要影响,对南华201区块的地层进行了一系列高压物性实验研究。实验结果表明:随着地层压力的不断增大,地层原油体积不断减少,在减小过程中,出现明显的拐点,该点即为地层饱和压力4.25 MPa;根据实验结果,地层原油的相对体积与地层压力呈现负相关;地层压力越大,地层原油相对体积反而减小;由多级脱气实验可得,地层原油体积系数也随着压力的不断增大而减小;地层原油密度也受压力影响较大,呈现正相关的趋势。随着压力增大,原油体积减小,密度增大。The high-pressure physical properties of formation oil are mainly affected by factors such as temperature and pressure, and the composition of the formation oil itself also has an important influence on it. A series of high-pressure physical properties experiments were carried out on the formation of Nanhua 201 block. The experimental results show that, with the continuous increase of formation pressure, the volume of formation crude oil continues to decrease. In the process of reduction, an obvious inflection point appears, which is the formation saturation pressure of 4.25 MPa. According to the experimental results, the relative volume of formation crude oil is negatively correlated with formation pressure. The greater the formation pressure, the relative volume of crude oil in the formation decreases. It can be obtained from the multi-stage degassing test that the volume coefficient of the formation crude oil also decreases with the continuous increase of pressure. The density of formation crude oil is also greatly affected by pressure, showing a positive correlation trend. As the pressure increases, the volume of crude oil decreases and the density increases.

关 键 词：油气组成 高压物性 原油密度 体积系数 

分 类 号：TE311[石油与天然气工程—油气田开发工程]