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在介绍四川盆地东北地区下三叠统飞仙关组和上二叠统生物礁测井解释的经验和技术基础上,对X井飞仙关组、长兴组的地质和储层特征进行了对比分析,并充分利用该井的常规测井和成像测井的信息,精细地评价了该井的礁滩储层,准确地进行了气水解释,较为精确地获得了储层的参数。研究认为:在飞仙关和长兴组同时找到的礁滩叠合体具有储层发育程度高、溶蚀作用强、产量高的特点,具有较大的勘探潜力,这也得到了试油结果的验证;有效的测井组合是常规测井、电阻率成像、阵列声波、重复式地层测试器,可选择的是核磁共振测井,该井气层的测井解释成功为LG地区油气勘探提供了技术支持。
Based on the experience and techniques of interpretation of the Lower Triassic Feixianguan Formation and the Upper Permian reef log in the northeastern Sichuan Basin, the geological and reservoir characteristics of Feixianguan Formation and Changxing Formation in X-Well are compared Analysis and make full use of conventional well logging and imaging logging information of the well, finely evaluate the reef bank reservoir of the well, accurately explain the gas and water, and obtain the reservoir parameters more accurately. The research shows that the reef bank assemblage, which was found at the same time in Feixianguan and Changxing formations, has the characteristics of high reservoir development degree, strong dissolution and high yield and great exploration potential, which has also been verified by oil test results. Valid well logging combinations are conventional logging, resistivity imaging, array acoustics, and repeatable formation testers, optionally with NMR logging, which successfully provided logistical support for hydrocarbon exploration in the LG area .