A study and application of high-resolution methods for reef reservoir identification
A study and application of high-resolution methods for reef reservoir identification
复制标题
高分辨率生物礁储层识别方法研究与应用
DOI：
10.1007/s11600-017-0074-1
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发表时间：
2017-09
期刊：
影响因子：
2.3
通讯作者：
Qian Zhongping
中科院分区：
文献类型：
--
作者：
Yan Lili;Cheng Bingjie;Xu Tianji;Wei Shuijian;Qian Zhongping
珊瑚礁是一种特殊类型的碳酸盐圈闭，在油气藏的运移、聚集和形成中发挥着关键作用。它们通常是勘探和开发的目标。然而，珊瑚礁具有复杂的内部结构，并且很容易生长为薄的、互层的地质框架，具有包括珊瑚礁盖、核心和底部的珊瑚礁微相。由于地震信号频率低、带宽窄等固有缺陷，难以准确识别生物礁储层。幸运的是，可以利用地震的频率、相位、能量、波形等动态和几何特性来补偿能量，扩展频率带宽，并对子波进行分解和重构，以获得高分辨率的地震数据。这些数据可以突出显示礁石的某些地震响应，包括边界反射、礁石轮廓的圆顶形反射、礁盖的强反射、礁石底部的反射以及礁石侧面的重叠反射。通过将测井数据与地质和高分辨率地震数据相结合进行礁储层反演，观察到一些阻抗响应规律，例如礁盖相对于礁核和生物碎屑滩的较低阻抗以及礁滩复合体的波动阻抗。这些方法已应用于元坝气田长兴组。通过与原始地震资料和测井曲线的对比分析，测井与地震资料一致性较高，取得了良好的预测效果。
Reefs represent a special type of carbonate trap that plays a key role in the migration, accumulation, and formation of a reservoir. They have commonly been the targets of exploration and development. However, reefs have complex interior structures and easily grow as thin, interbedded geological frames with reef microfacies that include the cap, core, and base of the reef. Because of the inherent drawbacks of seismic signals, including their low frequencies and narrow bandwidths, it is difficult to accurately identify reef reservoirs. Fortunately, the seismic frequency, phase, energy, waveform and other dynamic and geometrical properties can be used to compensate for the energy, expand the frequency bandwidth, and decompose and reconstruct the wavelet to obtain high-resolution seismic data. These data can highlight certain seismic responses of reefs, including boundary reflections, dome-shaped reflections from the reef outline, strong reflections from the reef cap, reflections from the reef bottom, and onlap reflections from the reef flanks. Some impedance response regularities, such as the lower impedance of the reef cap relative to the reef core and biodetritus beach and the fluctuating impedance of the reef-flat complex, are observed by combining log data with geological and high-resolution seismic data for a reef reservoir inversion. These methods were applied to the Changxing Formation in the Yuanba Gas Field. Good prediction results were obtained with a high consistency between the log and seismic data in a comparative analysis with the original seismic data and well logs.
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影响因子：
0.7
作者：
Zishun Li;Xuebin Guo
通讯作者：
Zishun Li;Xuebin Guo
DOI：
--
发表时间：
2010
期刊：
Journal of Chengdu University of Technology
影响因子：
--
作者：
Wen Xue-kang
通讯作者：
Wen Xue-kang
影响因子：
--
作者：
Gavin Hills-Jones
通讯作者：
Gavin Hills-Jones
影响因子：
3.3
作者：
M. Sugihara;T. Ishido
通讯作者：
M. Sugihara;T. Ishido
影响因子：
--
作者：
KJARTANSSON, E
通讯作者：
KJARTANSSON, E