论文部分内容阅读
塔里木盆地轮南2油田JIV油组电阻率普遍偏低,个别油层电阻率比水层电阻率还低,含油性评价主要根据试油和试采结论;未试油层段储层含油和油藏油水界面不明确。为精细解释储层流体性质、判断油水界面及解决采收率低等问题,利用轮南2油田JIV油组12口取心井的岩石热解和荧光薄片图像分析进行流体性质划分,明确在不同流体性质下岩石热解数据和荧光显微图像的变化特征。利用岩心含油性观察、岩心物性分析和生产动态资料,制定划分储层流体性质的方法,建立一套适合轮南2油田JIV油组的流体性质半定量划分标准。生产动态资料分析证明流体性质划分标准的准确性和方法的实用性。
The resistivity of JIV oil group in Lunnan 2 oil field in Tarim Basin is generally low, and the resistivity of individual reservoirs is lower than the resistivity of water layer. The evaluation of oil content is mainly based on the conclusion of test oil and trial production. The interface is not clear. In order to explain the fluid properties of reservoirs finely, determine the interface between oil and water and solve the problem of low oil recovery, the fluid properties are divided according to the rock pyrolysis and fluorescence sheet image analysis of 12 cored wells in JIV oil group of Lunnan 2 oil field. Variation Characteristics of Pyrolytic Data and Fluorescence Microscopic Images of Rock under Fluid Properties. Based on the observation of core oil content, core physical property analysis and production data, a method of delineating reservoir fluid properties was developed and a set of semi-quantitative criteria for fluid properties suitable for JIV oil group in Lunnan 2 field was established. Production data analysis to prove the accuracy of the fluid properties of the classification criteria and the practicality of the method.