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通过对河125断层几何学特征的分析发现弧形断裂平行于断层走向剖面上表现为断槽、断脊组合;垂直于断层走向剖面上断层分为竖滑段、倾滑段和平滑段3段,生长指数规律为弧中大于弧翼,断层倾角规律为弧中小于弧翼。断裂的几何学特征与运动学特征具有相关性。断层几何学特征对浊积扇具有重要的控制作用:平面上,弧中位置浊积扇最发育,弧翼为不同浊积扇的分界线;断槽为浊积砂体的补给通道,断脊为扇体不同补给区的分水岭;垂向上,倾滑段下部发育远岸浊积扇,中上部发育滑塌浊积岩,形成典型的弧扇对应现象。断层对油藏的控制表现为:控制储层展布、改善储层物性、沟通油源和形成生长背斜及断鼻油气藏。
Through the analysis of the geometric characteristics of the He 125 fault, it is found that the arc-shaped fault is parallel to the strike of the fault and is characterized by broken troughs and ridge ridges. The faults vertical to the strike of the fault are divided into three sections, ie, the vertical slide, the inclined slide and the smoothing , The law of growth index is larger than the arc in the arc, and the law of the dip is less than the arc in the arc. The geometry of the fracture is related to the kinematic characteristics. The fault geometry has important control over the turbidite fan: in the plane, the turbidite fan is the most developed in the arc and the arc is the dividing line of turbidite fan; the fault channel is the recharge channel of turbidite sandbody, In the vertical direction, the turbidite fan in the lower part of the dip-slip segment developed, and the turbidite in the middle and upper part developed, which formed a typical arc-fan correspondence. The faults control the reservoirs by controlling the reservoir distribution, improving reservoir physical properties, communicating oil sources and forming growth anticlines and fault gas reservoirs.