摘要:
Limited by multiple geological conditions,the 3D seismic interpretation results of some regions are not reliable.It is a fast way to calculate an ant attribute volume using ant-tracking technology.Then we can extract the attribute of ant volume along a given horizontal layer to analyze the fault structure,the results can predict the characteristics of different-scale of faults.The idea of "body interpretation" was used,not only reduced the period of data interpretation,but also reduced the influence of subjective factors.Firstly,median filter and structural smoothing were carried out to enhance the continuity of the event.Secondly,variance technology was applied to strengthen the discontinuity of the seismic volume.Finally,though the tests of ant-tracking parameters,and the choose of proper parameter,high quality of ant attribute volume was acquired.The line of predicted fracture can provide geological basis for the interpretation of relevant data,and 3D visualization can be used to check the relationship of faults,to make sure the results of interpretation more reasonable.Analysis shows that,predicted fracture using the ant tracking technology is more clear than variance cube technology,the effect of subjective factor was reduced in the results,the efficiency of explanation is high.%由于受多种地质条件的限制,有些地区三维地震构造解释成果可靠性较低,利用蚂蚁追踪技术快速对地震数据体进行蚂蚁属性体的计算,并对蚂蚁属性体提取顺层属性来对断裂构造进行分析和提取,其结果能够反映不同尺度断裂的平面展布特征.采用"体解释"的思路,既缩短了解释周期,也克服了人为解释主观因素的影响.先对地震数据体进行中值滤波、构造平滑等预处理,增强地震反射波的连续性;再采用方差体技术来增强地震数据的不连续性;最后通过合理选择蚂蚁追踪参数,得到质量优良的蚂蚁属性体.该方法所预测出来的断裂痕迹线可为资料体解释提供地质依据,通过三维可视化来检查断裂交切关系,使解释成果更合理.分析表明,蚂蚁追踪技术所预测的断裂痕迹比方差体技术更为清晰,解释结果减少了人为主观因素的影响,解释效率高.