塔河油田碳酸盐岩小尺度缝洞体的预测识别技术研究及应用  

Research and application of prediction and identification technology for small scale fractured caverns in carbonate rock in Tahe Oilfield

作　　者：丁立明 Ding Liming(Sinopec Northwest Oilfield Company,Urumqi 830001)

机构地区：[1]中国石化西北油田分公司,新疆乌鲁木齐830001

出　　处：《石化技术》2024年第2期57-59,共3页Petrochemical Industry Technology

摘　　要：针对塔河油田小尺度缝洞体分布零散、种类复杂、识别动用难度大的特点,常规缝洞体检测技术如反演阻抗、分频振幅、杂乱度等方法不能很好刻画小尺度缝洞体。基于绕射波识别的方法原理,从小尺度缝洞正演模拟分析入手,运用绕射波分离技术,在地震数据中去除反射波,对绕射波进行单独成像。实际资料应用表明,绕射波分离成像技术提高小尺度缝洞体的横向分辨能力,对小尺度缝洞有明显聚焦成像效果,提升小尺度缝洞体的预测精度,提高缝洞型储层的油气藏识别能力,实现对有利储层发育区的有效预测。In view of the characteristics of scattered distribution,complex types and difficult identification and application of small-scale fractured caverns in Tahe oilfield,conventional fractured caverns detection techniques such as inverse impedance,frequency division amplitude and clutter degree can not describe the small-scale fractured caverns well.Based on the method principle of diffraction wave recognition,the diffraction wave separation technology is used to remove the reflected wave from the seismic data and image the diffraction wave separately.The application of actual data shows that the diffraction wave separation imaging technology can improve the lateral resolution of small-scale fractured caverns,have obvious focusing imaging effect on small-scale fractured caverns,improve the prediction accuracy of small-scale fractured caverns,improve the ability of reservoir identification of fracture-vuggy reservoirs,and realize effective prediction of favorable reservoir development areas.

关 键 词：塔河油田 奥陶系碳酸盐岩储层 小尺度缝洞 绕射波 

分 类 号：TE321[石油与天然气工程—油气田开发工程]