【摘要】 生物礁作为一种特殊的碳酸盐岩隆,是石油和天然气良好的储存场所。为了揭示其地震波场响应特征,采用高精度相移加插值波场延拓算子,对根据某地区二叠系生物礁储层的地质特征所设计的2个复杂生物礁储层模型进行正演和偏移成像处理。结果表明生物礁的特殊地质条件决定了其在地震剖面上必然出现的异常响应,对响应特征的分析解释能够在油气勘探中发挥作用,所做地震数值模拟工作对生物礁油气藏勘探具有指导性意义。更多还原

【Abstract】 As a kind of special carbonate uplift, reef was a good storage place of oil and gas. To reveal its seismic wave field response characteristics, a high-precision phase shift plus interpolation wave field continuation operator was used in the forward modeling and immigration on two complicated reef models built based on geologic features of Permian reef reservoirs. The results show that abnormal response on seismic section is consequentially induced by its peculiar geologic conditions. The analysis and interpretation on response characteristics are helpful in oil and gas exploration, and seismic wave field simulation can be the guidance of oil and gas exploration in reef reservoirs.更多还原