海相油气地质
海相油氣地質
해상유기지질
Marine Origin Petroleum Geology
2015年
4期
49-56
,共8页
南黄海%中部隆起%地震层序%地质时代%地层划分
南黃海%中部隆起%地震層序%地質時代%地層劃分
남황해%중부륭기%지진층서%지질시대%지층화분
Seismic sequence%Geologic age%Stratigraphic division%South Yellow Sea
应用地震地层学研究方法,对南黄海盆地中部隆起近几年新采集、处理的地震剖面进行综合解释,共识别出6个地震层序.通过地震反射特征分析、地层速度分析、重磁震联合反演和区域地质对比,推测这些层序的地质时代属性分别为前震旦系、震旦系、寒武系—奥陶系、志留系—泥盆系、石炭系—下二叠统、以及新近系—第四系.研究区的沉积地层分布广泛,厚度较大,整体呈NNE向和近EW向展布.对中部隆起地层的属性分析结果,不仅能为盆地的结构和地质演化研究提供基础的地质资料,而且对中部隆起的油气勘探和资源评价都具有意义.
應用地震地層學研究方法,對南黃海盆地中部隆起近幾年新採集、處理的地震剖麵進行綜閤解釋,共識彆齣6箇地震層序.通過地震反射特徵分析、地層速度分析、重磁震聯閤反縯和區域地質對比,推測這些層序的地質時代屬性分彆為前震旦繫、震旦繫、寒武繫—奧陶繫、誌留繫—泥盆繫、石炭繫—下二疊統、以及新近繫—第四繫.研究區的沉積地層分佈廣汎,厚度較大,整體呈NNE嚮和近EW嚮展佈.對中部隆起地層的屬性分析結果,不僅能為盆地的結構和地質縯化研究提供基礎的地質資料,而且對中部隆起的油氣勘探和資源評價都具有意義.
응용지진지층학연구방법,대남황해분지중부륭기근궤년신채집、처리적지진부면진행종합해석,공식별출6개지진층서.통과지진반사특정분석、지층속도분석、중자진연합반연화구역지질대비,추측저사층서적지질시대속성분별위전진단계、진단계、한무계—오도계、지류계—니분계、석탄계—하이첩통、이급신근계—제사계.연구구적침적지층분포엄범,후도교대,정체정NNE향화근EW향전포.대중부륭기지층적속성분석결과,불부능위분지적결구화지질연화연구제공기출적지질자료,이차대중부륭기적유기감탐화자원평개도구유의의.
It is known that there is good hydrocarbon potential in lower Paleozoic reservoirs in Central Uplift,South Yellow Sea Basin.Analysis of stratigraphic attribute is significant.Based on the analysis on the seismic profiles that have been acquired and processed in recent years,six seismic sequences are identified in this uplift.According to seismic reflection features,formation velocity,integrated gravity-magnetic-seismic inversion and regional geological correlation,it is inferred that these stratigraphic sequences are attributed to pre-Sinian,Sinian,Cambrian-Ordovician,Silurian-Devonian,Carboniferous-Lower Permian and Neogene-Quaternary.These sequences are widely distributed with huge sedimentary thickness and demonstrate NNE- and EW-trending in general.
