本文選題：南黃海盆地　切入點：中—古生代　出處：《天然氣工業(yè)》2017年05期 　論文類型：期刊論文

【摘要】：南黃海盆地中—古生代海相地層發(fā)育齊全且厚度較大,油氣多源多期成藏,具備形成大型油氣藏的物質(zhì)基礎,但一直未獲得實質(zhì)性的油氣勘探突破。研究認為,多期構造事件造就了該疊合盆地復雜的構造格局,其良好的靜態(tài)油氣保存條件受到不同程度的后期疊加改造或破壞,油氣保存條件成為關乎該區(qū)海相油氣勘探能否取得突破的關鍵要素。為此,從構造運動與烴源巖條件、蓋層特征、巖漿活動、水文地質(zhì)地球化學特征等多個方面對該盆地海相地層的油氣保存條件進行了綜合分析。結(jié)果表明:(1)多期構造事件造就了該盆地復雜的構造格局,2個主要階段(中—古生代海相盆地穩(wěn)定演化階段和中—新生代構造變格與成盆階段)控制了區(qū)域烴源巖的發(fā)育及演化,呈現(xiàn)出差異性油氣保存的特點;(2)相對較弱的構造改造及品質(zhì)較好的厚層烴源巖發(fā)育、縱向上良好的蓋層封蓋性能、較弱的巖漿活動、相對封閉性的水文地質(zhì)條件是該區(qū)海相地層油氣保存有利區(qū)需要同時具備的前提條件。結(jié)論認為:該盆地中部的嶗山隆起構造穩(wěn)定、斷裂活動及巖漿活動較弱,油氣保存條件較為優(yōu)越,發(fā)育多個油氣地質(zhì)條件良好且生儲蓋組合完整的大型構造圈閉,是該區(qū)海相古生界油氣勘探最為有利的遠景區(qū)帶。
[Abstract]:The Meso-Paleozoic marine strata in the South Huang Hai Basin are well developed and thicker, with multi-source and multi-stage oil and gas reservoirs, and have the material foundation to form large oil and gas reservoirs, but no substantial breakthrough in oil and gas exploration has been obtained. The multi-period tectonic events created the complex tectonic framework of the superimposed basin, and its good static oil and gas preservation conditions were altered or destroyed by superposition or destruction in different degrees. The preservation condition of oil and gas has become the key factor to make a breakthrough in marine oil and gas exploration in this area. Therefore, based on tectonic movement, source rock conditions, caprock characteristics and magmatic activity, The oil and gas preservation conditions of marine strata in the basin have been comprehensively analyzed from several aspects, such as hydrogeological and geochemical characteristics. The results show that the multi-stage tectonic events have resulted in the complex tectonic framework of the basin and two main stages (middle stage). The stable evolution stage of Paleozoic marine basin and the Meso-Cenozoic tectonic change and basin stage) control the development and evolution of regional source rocks. It shows the characteristics of differential oil and gas preservation, such as relatively weak structural transformation, well developed thick hydrocarbon source rocks with good quality, good seal property of cap rocks and weak magmatic activity. The relatively closed hydrogeological condition is the prerequisite for the favorable area of marine strata oil and gas preservation. It is concluded that Laoshan uplift in the central part of the basin is stable in structure, weak in fault activity and magmatic activity. The oil and gas preservation conditions are superior, and several large structural traps with good oil and gas geological conditions and intact assemblages of source, reservoir and cap are developed, which are the most favorable prospective zones for oil and gas exploration in the marine Paleozoic in this area.
【作者單位】： 中國海洋大學海洋地球科學學院;國土資源部海洋油氣資源與環(huán)境地質(zhì)重點實驗室·中國地質(zhì)調(diào)查局青島海洋地質(zhì)研究所;青島海洋科學與技術國家實驗室海洋礦產(chǎn)資源評價與探測技術功能實驗室;
【基金】：中國地質(zhì)調(diào)查局“海域油氣資源調(diào)查”工程項目(編號:DD20160152)、“南黃海前第三系油氣前景研究”(編號:XQ-2005-01)、“南黃海嶗山隆起和灘海區(qū)海相地層油氣資源戰(zhàn)略選區(qū)”(編號:2009GYXQ10)
【分類號】：P618.13

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