摘要
近年在塔里木盆地顺南地区沿走滑断裂的碳酸盐岩勘探取得了良好的油气成果,证实了碳酸盐岩断控储层发育的有效性。顺南地区受沙漠地表、储集体埋深等因素影响,信噪比较低,给叠后油气预测带来了极大困难。首先基于实际地震偏移叠加剖面和钻井资料,建立符合顺南地区过井含油气地震地质模型;然后基于逼近实际观测系统的AVO正演模拟的道集数据,验证了叠前AVO同步反演技术在顺南地区含油气预测的适应性,进而将该技术应用于实际地震资料的含油性预测,反演结果与钻井吻合率较高。结果表明,叠前AVO反演技术可以提高碳酸盐岩储层含油气性预测精度,为后续钻井部署提供可靠的依据。
In recent years,the exploration of carbonate rocks along the strike-slip fault has obtained good oil and gas achievements in the Shunnan area of Tarim basin.The validity of the fracture control reservoir development is verified.Influenced by the deserts surface and large buried depth,the signal to noise ratio（SNR）of seismic data in Shunnan area is low,which has brought great difficulties for the prediction of post-stack oil and gas.Based on the actual seismic shift overlay section and the actual drilling data,this paper establishes a seismic and geological model of oil and gas in Shunnan area.Based on AVO forward modeling data that approach to actual observation system,the adaptability of Pre-stack AVOsynchronous inversion technique is verified.Then,it is applied to the oil-bearing prediction of the actual seismic data,and the inversion result is good with drilling consistency.It is shown that the AVO inversion technique can improve the prediction accuracy of hydrocarbon reservoir in carbonate reservoirs,which provides a reliable basis for subsequent drilling deployment.
作者
任丽丹
王鹏
刘成芳
黄超
Ren Lidan;Wang Peng;Liu Chengfang;Huang Chao(College of Geophysics and Petroleum Resources,Yangtze University,Wuhan Hubei 430100,China;Research Institute of Exploration ＆ Development,Northwest Oilfield Company of Sinopec,Urumqi Xinjiang 830011,China)
出处
《工程地球物理学报》
2018年第3期292-298,共7页
Chinese Journal of Engineering Geophysics
关键词
碳酸盐岩
储层
叠前AVO反演
模型验证
含油气性
carbonate rock
reservoir
pre -stack AVO inversion
model validation
oil - bearing
