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层间圈闭的解释方法,首先对测井曲线分段求出变V0和变β速度参数,使深度-时间转换准确;然后用约束反演方法合成井旁地震道,以此细致地标定地震反射层位;最后用储层横向预测方法对层间圈闭进行定量研究,编制层间圈闭顶面构造图及储层厚度图。该方法应用于泌阳凹陷B93井区,新发现3个层间圈闭,总面积5.03km2,为该区的油气勘探提供了新的目标。
Firstly, the parameters of variable V0 and variable β are obtained by segmenting the logging curve, so that the depth-time transformation is accurate. Then the well-side seismic traces are synthesized by constrained inversion method to finely delineate the earthquakes Finally, the interlayer trap is quantitatively studied by lateral reservoir lateral prediction method, and the top-level structural map and reservoir thickness map of interlayer traps are compiled. This method is applied to the B93 well in Biyang Depression. Three newly discovered interlamellar traps with a total area of 5.03km2 provide a new target for oil and gas exploration in this area.