蚂蚁追踪技术在辛34断块解释中的应用

东辛油田辛34断块断裂复杂,多数为低级序断裂,识别难度较大,利用蚂蚁追踪技术对辛34断块内断层进行自动追踪解释.地震资料构造平滑处理之后,利用方差体属性检测地震数据在空间上的不连续性,在方差体属性基础上生成蚂蚁属性体,将自动解释成果与人工解释成果进行对比.结果表明:蚂蚁属性体虽含有断裂假象,但其平面和剖面断层的空间展布痕迹较清晰;三维断片编辑后可直接转化为解释数据并用于构造模型建立;自动解释成果与人工解释成果相差不大,对于某些低级序断层,蚂蚁自动解释识别能力更强,蚂蚁属性体断裂痕迹可以有效地指导断裂平面及剖面解释,使得解释效果更加精确;验证了该方法的实用性和有效性,可以辅助人工解释.

Application of ant tracking technology to the interpretation of the faults in fault block Xin 34

The faults in Xin 34 fault block of Dongxin Oilfield are complex,most of which are low-level sequence fractures,and they are difficult to be recognized. The ant tracking technology is applied to the automatic fault interpretation of the seismic data in Xin 34 block. After the smooth processing of seismic data,the spatial discontinuity of seismic data is detected by means of the attributes of variance body,ant attribute body is generated based on the attributes of variance body,and the automatic interpretation result is compared with the manual interpretation program. The results show that,there is false appearance of faults in ant attribute body,but the spatial distribution traces of the plane and profile faults in the ant attribute body are clear; the edited 3D fault slices can directly be transformed into interpretation data and can be used for establishing structure model; there is little difference between the automatic interpretation result and manual interpretation program. The ant automatically recognizing ability is stronger for some low-level sequence faults. The fault traces of ant attribute body can be used for effectively guiding the plane and profile interpretation of faults,which can make interpretation result more accurate. Ant automatic interpretation can be used as auxiliary manual interpretation.