鲁西茌平背斜构造带的演化及其古生界原生油气勘探前景

鲁西茌平背斜构造带被夹持在东侧寿张凹降和西侧监清坳陷的莘县凹陷之间，处于“凹中之隆”的有利勘探位置。该构造带的演化受西侧兰聊断裂活动的严格控制，晚三叠世，该断裂的产生接开背斜带演化的序幕。兰聊断裂的燕山期具右旋平移性质，使区内北北东向次级正断层发育，构造带基本定型。该带是相邻两凹限油气运移的主要指向地区，两凹陷内含下古生界开阔（局限）海相烃源岩和上古生界煤系源岩；带内下古生介顶部风化壳为良好储层；

Evolution of Chiping Anticline Structural Zone in West of Shandong and Its Paleozoic Primary Oil-Gas Prospecting

Chiping anticline structural zone located in between Shouzhang sag to the east and Xinxian sag of Linqing depression to the west is an advantage uplift among sags.The structural zone evolution is controlled by Lanliao fault produced in Late Triassic.The Lanliao fault appeared as right-lateral strike slip in Yanshan,which made the region developed with NNE second-order normal faults and the structural zone basically fixed.The zone is the main directional area of oil-gas migration from the two adjacent sags where there is Lower Paleozoic open(limited)marine source rock and Upper Paleozoic coal- measure source rock.The weathering crust in the top of Lower Paleozoic in the zone is a good reservoir.Mite developed in the bottom of Carboniferous-Permian overlay may be an excellent direct caprock.It is considered that there is a nice reservoir-caprock association,a matched pool-forming time and an advantage trap conditions in the zone.