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泌阳凹陷北部斜坡带地质构造相对复杂,而主要目的层又是浅层,是较为典型的浅层复杂断块油气藏。对于浅层资料来说,有它难以回避的劣势:受地表因素的影响较大、覆盖次数较低。必然造成干扰波严重,横向稳定性降低,速度场的求解精度不高,偏移处理难度较大等问题。因此,在处理过程中要着重做好叠前去噪处理、静校正处理、地表一致性处理、速度分析和偏移成像处理等技术。实际处理中见到了良好的效果,有效地解决了浅层资料存在的问题,满足了深化研究的需要。
The geological structure of the northern slope belt in Biyang depression is relatively complicated, while the main target layer is shallow, which is a typical shallow complex fault block reservoir. For shallow data, it has its unavoidable disadvantages: it is more affected by surface factors and has a lower coverage. Will inevitably lead to serious interference wave, lateral stability is reduced, the velocity field of the solution accuracy is not high, the offset processing difficulty and other issues. Therefore, in the process of focusing on pre-stack noise reduction, static correction, surface consistency, velocity analysis and migration imaging techniques. The actual treatment has seen good results, effectively solve the problems of shallow data, to meet the needs of deepening the study.