【摘要】 以大庆长垣油田X区S油层研究为例,阐述了重构反演实现过程中测井曲线均一化及重构处理、地震-地质合成记录标定、小层约束低频模型等关键环节,开展了以约束稀疏脉冲确定性反演为背景的随机模拟反演。反演结果证实了密井网条件对油藏精细描述是有效果的。井震结合后河道砂体的位置多处有新的变化,反演不仅能够提高砂泥岩薄互层条件下小层、砂体的准确程度,同时进一步明确了较厚的主力油层及主力砂体接触关系,尤其是河道砂体的边界位置。重构反演对砂体边界的预测直接影响了后期剩余油挖潜和结构调整,这对日后推广地震反演识别砂体的方法和剩余油预测是非常有意义的。更多还原

【Abstract】 S reservoir in X Area was taken for example,the key processes of logging curve homogenization inversion of the implementation process and reconfigurable processing,seismic-geological synthetic seismogram calibration,small layer constrained low-frequency model and other key points were described to carry out the sparse pulse deterministic inversion of the stochastic simulation of the background.The inversion results prove that the dense pattern is effective for detailed reservoir description.After well is combined with seismic process,position of channel sand body has greatly changed,the inversion can not only improve the accuracy of small layer,sand body on condition of thin interbed mudstone layers,but also further clarify the contact relationship between thicker main reservoirs and main sand body at the same time,especially the boundary position of the channel sand body.It is found out that the forecast of reconstruction inversion for sand border has direct effect on tapping the potential of remaining oil and structure adjustment,it is of significant for popularizing the method of identification of sand body and forecasting remaining oil with seismic inversion.更多还原