中原油田致密砂岩裂缝性储层测井评价方法

The Well-logging Evaluation Method of Tightly Fractured Sandstone Reservoir in Zhongyuan Oilfield

赵俊峰 陈汉林 李凤琴 王轩然

ZHAO Junfeng CHEN Hanlin LI Fengqin WANG Xuanran

中国石化集团中原石油勘探局测井公司, 河南漼阳 457001

Well Logging Company of Zhongyuan Oilfield of SINOPEC, Puyang Henan 457001, China

为有效识别和评价以"双孔介质"为特征的三叠系致密砂岩裂缝性储层,利用"双标定"技术,在地质条件及测试资料的约束下,通过"四性"关系研究,总结出三叠系裂缝性砂岩储层的测井响应特征,形成了一套划分裂缝性储层的有效方法,建立了裂缝性储层参数的定量评价模型,分区块建立了油水识别标准。据已测试的21口井看,该评价方法的测井解释符合率达87.5%,提高了测井对三叠系储层的识别能力,解决了裂缝性储层的定量评价问题。

In order to effectively identify and evaluate tight-sandstone Triassic fracture reservoirs with characteristics of double porosity, the double calibration technology has been used. Under the constraints of geologic conditions and testing data, through study on lithologic, electronic,physical properties and HC existence in fractured reservoirs, the well logging response of fractured sandstone in Triassic has been summarized, and the effective method to identify fractured reservoir has been formed. In addition, the quantitative evaluation models on parameters of fractured reservoir have been constructed, and the oil and water identification standards for different blocks have been established. According to the testing results of twenty-one wells, the coincidence rate of this method with log interpretation results is up to 87.5%. With this method, the identification capability on fractured reservoir with well-logging data has been improved, and the quantitative evaluation on fractured reservoirs can be conducted

https://doi.org/10.3969/j.issn.1008-2336.2012.03.086