CAJ | 학술논문

以渤海湾盆地潜山油气勘探实践为基础，综合前人研究成果，系统对比分析不同凹(坳)陷潜山油气成藏条件、油气富集差异性，并探讨其主要控制因素。研究表明：前古近纪构造演化造就了Ⅰ、Ⅱ、Ⅲ型三类基底，新生代构造差异演化形成了早期型、继承型和晚期型三类凹陷，凹陷演化的差异性控制了烃源岩层系由盆地外围早期型凹陷到中心晚期型凹陷逐步变浅，由Ⅰ类基底向Ⅲ类基底，优质储层规模逐渐减小，输导条件逐步变差；潜山油气的宏观分布受前古近纪与新生代演化共同控制，主要富集在Ⅰ、Ⅱ类基底与继承型、早期型耦合的富油气凹陷中；潜山油气的富集程度受凹陷的富油气性、烃源岩层系、优质储层发育规模以及供油窗口等综合因素控制；对不同成藏条件进行定量化，建立潜山油气藏形成的“源-储-导”三元耦合控藏模式，储集条件为首要控制因素。
이발해만분지잠산유기감탐실천위기출，종합전인연구성과，계통대비분석불동요(요)함잠산유기성장조건、유기부집차이성，병탐토기주요공제인소。연구표명：전고근기구조연화조취료Ⅰ、Ⅱ、Ⅲ형삼류기저，신생대구조차이연화형성료조기형、계승형화만기형삼류요함，요함연화적차이성공제료경원암층계유분지외위조기형요함도중심만기형요함축보변천，유Ⅰ류기저향Ⅲ류기저，우질저층규모축점감소，수도조건축보변차；잠산유기적굉관분포수전고근기여신생대연화공동공제，주요부집재Ⅰ、Ⅱ류기저여계승형、조기형우합적부유기요함중；잠산유기적부집정도수요함적부유기성、경원암층계、우질저층발육규모이급공유창구등종합인소공제；대불동성장조건진행정양화，건립잠산유기장형성적“원-저-도”삼원우합공장모식，저집조건위수요공제인소。
Based on exploration results and previous studies, the hydrocarbon accumulation conditions were summarized and the differences were compared in different sags of the Bohai Bay Basin. The results show that the pre-Cenozoic tectonic evolu-tion created three types of basement. Evolution of the Cenozoic formed three types of sags:basin of early rift, basin of inherit-ance rift and basin of lately rift. Evolution differences controlled the distribution of source rock in the sag. The source rock gradually migrated to shallow depth from the periphery to the center of basin. The distribution of reservoir and transport condi-tion became poor gradually from typeⅠbasement to typeⅢbasement. Hydrocarbon enrichment is controlled by the pre-Cenozoic and Cenozoic evolution. Hydrocarbon mainly gathered in those sags with type I or type II basement and also with evolution type of inheritance or early rift basin. The hydrocarbon enrichment is controlled simultaneously by the source rock horizon, the scale of high quality reservoir and the formation of oil supplying window. Our study quantifies different hydrocarbon accumulation conditions, and suggests that three factors, including"source-reservoir-migration" which couple with each other, control the mode of the buried hill reservoirs, and the reservoir conditions are the main controlling factors.