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花海-金塔盆地已有21年的勘探历史,花海坳陷下白垩统新民堡群为主要生油层系,生油条件好.在钻探过程中多处见到油气显示,但一直未取得突破.本文在综合分析大量地质资料的基础上,通过磷灰石裂变径迹、包裹体测温、镜质体反射率等多种古地温研究手段,取得了花海坳陷古地温高、油气生成、运移期早,与构造圈闭形成期配置关系不理想.因此要将中生代形成的地层岩性圈闭放在重要位置这一突破性新认识,指明了今后油气勘探的方向.
Huahai-Quinta Basin has 21 years of exploration history, and the Lower Cretaceous Xinhuabao Group in Huaihai Depression is a major oil-bearing formation with good oil generation conditions. Many oil and gas shows were seen during drilling, but they were not obtained Based on the comprehensive analysis of a large number of geological data, this paper obtained many paleo-geothermal research methods, such as apatite fission track, temperature measurement of inclusions and vitrinite reflectance, Generation and migration period are early and are not ideal for the configurational period of tectonic traps.Therefore, it is necessary to lay a new understanding of formation lithology trap formed by Mesozoic in an important position, indicating the direction of future oil and gas exploration.