CAJ | 학술논문

根据钻井、岩心、测井、地震等资料，将高邮凹陷缓坡带划分为3个长期旋回，8个中期旋回。MSC1-MSC3时期，研究区持续湖进，湖盆面积不断扩张，到MSC4时期趋于稳定。中期基准面旋回由一系列具有进积、加积和退积叠加样式的短期基准面旋回层序叠加而成，旋回结构以对称型（C型）为主，代表了较大幅度的湖进-湖退过程。应用高分辨率层序地层学理论对研究区目的层进行隐蔽圈闭预测研究结果表明，地层超覆油气藏发育于MSC1-MSC3沉积期内基准面上升时期的中下部，断层-岩性油气藏的形成不但与层序地层有关，而且断层也是该类圈闭形成的主控因素之一，砂岩上倾尖灭油气藏主要发育于短期基准面上升时期的低部位，而研究区透镜体圈闭主要发育于基准面下降时期或者向上变浅非对称型短期旋回内部。
근거찬정、암심、측정、지진등자료，장고유요함완파대화분위3개장기선회，8개중기선회。MSC1-MSC3시기，연구구지속호진，호분면적불단확장，도MSC4시기추우은정。중기기준면선회유일계렬구유진적、가적화퇴적첩가양식적단기기준면선회층서첩가이성，선회결구이대칭형（C형）위주，대표료교대폭도적호진-호퇴과정。응용고분변솔층서지층학이론대연구구목적층진행은폐권폐예측연구결과표명，지층초복유기장발육우MSC1-MSC3침적기내기준면상승시기적중하부，단층-암성유기장적형성불단여층서지층유관，이차단층야시해류권폐형성적주공인소지일，사암상경첨멸유기장주요발육우단기기준면상승시기적저부위，이연구구투경체권폐주요발육우기준면하강시기혹자향상변천비대칭형단기선회내부。
According to data from drilling,cores,logging,seism,and so on,the northern gentle slope in Gaoyou Sag was divided into 3 long-term sedimentary cycles,which are subdivided into 8 middle-term sedimentary cycles.From the MSC1 to the MSC3 period,the lake basin enlarged continuously,and became to be stable during the MSC4 period.The middle-term base level cycle was overlaid by a series of short-term base level cyclic sequences in manners of prograding,retrogra-ding,and aggrading.Symmetric pattern (C-pattern)is the main cycle structure,which represents the large transgressive and regressive process.Subtle traps of the target stratum in the research area were predicted in terms of the sedimentology,high-resolution sequence stratigraphy theory.Results suggest that the stratigraphic overlap reservoirs were developed in the lower-middle part of the base level rising period at the depositional stage of MSC1-MSC3.The formation of fault-lithologic reser-voirs is not only related to sequence stratigraphy,but also faults are one of main controlling factors.The sandstone updip pin-chout reservoirs were developed in the lower part of the short-term base level rising period.The lenticular traps were mainly formed in the base level descending period or the rising asymmetric short-terms cycle.