������ݾ����������ݻ��׶�: �����ڡ������ںͷ�ת�ڡ���Ӫ�ǡ��۽�����ˮĩ�ڣ���������¡�����ز����ܰ�ʴ�����ݵ����꾮�Ͳ⾮���ϣ�ѡ������ʱ��͵ز��������취���Զ����е�4 �ھ������˰�ʴ�����㡣�����ʾ��Ӫ�ǡ��۽�����ˮĩ��ƽ����ʴ���ֱ�Ϊ417. 5 m��205 m ��342. 5 m���ڵز��ʴ������Ļ����ϣ������˹����ݻ�ʷ�ָ����о�����ϴ������������ľ�һ�¶Ȳ��Խ�����ó�������ݸ����쵥Ԫ�����ɲ��ڴΣ�˫���ӹ���Ӫ����͵�¦������Ȼ�����������ڳɲأ���������Ӫ����͵�¦�������һ�ڳɲأ�����Ȫ����Ȫͷ����Ȼ������һ�ڳɲء�

Changling fault depression went through three stages in evolution��including the faulted period�� depression period and inversion period�� The fault rised and the formation generated erosion were in the late Yingcheng formation��late Nenjiang formation and late Mingshui formation�� Based on seismic and drilling data of the 4 wells located in the studied area by sonic velocity analysis and stratigraphic trend extension method��we get the result that the average erosion volume of the three periods mentioned above were 417. 5 m��205 m and 342. 5 m respectively�� Based on the stratigraphic denudation quantity calculation and the comprehensive study on homogenization temperature fluid inclusion in reservoir��we research on the oil-gas reservoir forming time and the period of each tectonic unit in Changling fault depression�� The Yingcheng Formation and Denglouku Formation of Shuangtuozi structure have gas accumulation for two phases�� The Yingcheng Formation and Denglouku Formation of Haerjin structure have gas accumulation for one phase�� The Quantou Formation of Fulongquan structure has gas accumulation for one phase��