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湖北潜江凹陷张家湖地区具有较好的成藏条件,其位于储层发育有利相带为汉水三角洲前缘水下分流河道、滨浅湖亚相沉积,局部为半深湖亚相。然而地面条件复杂,受张家湖、大苏湖、东荆河等影响,地震资料品质较差,无法进行地震储层预测。因此搞清本区地质构造,科学建立地质模型,满足一定的面元尺寸要求,选取合理的炮检距,分析适合工区的观测系统属性,进行采集参数论证,采取符合条件的观测系统。
The Zhangjiahu area in the Qianjiang Sag, Hubei Province has good reservoir forming conditions. The favorable facies belt in the reservoir development is the submarine distributary channel in the front of the Hanjiang River Delta, the subfacies of the shallow-shore lake and the partial semi-deep lake subfacies. However, the ground conditions are complex. Due to the influence of Zhangjiahu, Dahu Lake and Dongjinghe, the seismic data are of poor quality and can not be predicted by seismic reservoirs. Therefore, it is necessary to find out the geologic structure in this area, establish the geological model scientifically, meet the requirements of certain boulder size, select the reasonable offset, analyze the attributes of the observation system suitable for the working area, carry out the argument of acquisition parameters and adopt the observing system that meets the requirements.