Immanent factors forming subtle trap is many times spread of lake water body . many large land - carriage clastic system provide large deposit space . ancient heave slope band controls distributing of subtle trap 湖盆水体多次扩展是隐蔽油气藏形成的内在因素；多处大型陆源碎屑体系为隐蔽油气藏的形成提供了广阔的储集空间；古隆起斜坡带控制隐蔽油气藏的分布。
However , huimin sag is a region where few sequence research is done and exploration of subtle trap has just begun . approaches that deal with chronostratigraphic framework . , distribution of supplying sources and subtle targets are strongly needed 隐蔽油气藏勘探刚刚起步，勘探理论和技术都不适应当前勘探的要求，迫切需要一套理论、技术解决等时对比、物源分布和勘探目标等问题。
Application of high - resolution sequence stratigraphy in subtle trap exploration will result in forming some approaches and technologies for subtle oil - gas pool exploration and providing basis for making decisions on subtle explorations for a period since then 通过高分辨率层序地层研究，形成惠民凹陷隐蔽油气藏预测和油气勘探的部分理论和技术，为今后相当时间内隐蔽油气藏勘探提供决策依据。
According to paleo - geomorphology and depositional systems analysis , three kinds of forming models of subtle traps were built . they are fan - delta front - slope - sliding turbidity subtle traps n sub - fan near fault - stepping faults - turbidity subtle traps and fan - delta - furrow - sub - fan - sliding turbidity subtle traps 综合分析表明，临南洼陷具有有利的油气成藏条件，发育有上倾尖灭型隐蔽油气藏、透镜体隐蔽油气藏、断层-岩性隐蔽油气藏等隐蔽油气藏。
With the development of petroleum industry , sequence stratigraphy theories go fast from conventional sequence stratigraphy that is focus on sequence research of basin - type and tectonic oil - gas pool to high - resolution sequence stratigraphy that is applicable to research on subtle traps and reservoir - scale sequence 随着陆相油气勘探开发的深入，层序地层学理论已由适用于盆地规模的经典层序地层学阶段，发展到适用于储层规模勘探开发的高分辨率层序地层学阶段。
Sequence stratigraphy can contribute directly to the exploration of subtle traps . it is effective to increase the precision of stratigraphic correlation , therefor to enhance the reliability of subtle traps prediction , stratigraphic correlation approaches using in this paper based on principle of stratigraphic base - level cycles developed by t . a . cross , which are well tested in shallow marine and coastal plain strata . utilizing core , drilling , logging , seismic data and other information , the paper focus on recognizing the stratigraphic cycles formed by multi - order base - level cycles , establishing the stratigraphic correlation framework , researching on the distribution of reservoir and the prediction of the prospecting targets of the fourth section of shahejie formation in qi - shu area , liaohe basin 本文以t . a . cross成因地层研究小组提出的以地层基准面旋回原理为理论基础进行成因地层分析和储层预测的高分辨率层序地层学为指导，利用钻井、地震、岩心等多种分析资料，对辽河盆地西斜坡中部齐?曙地区沙四段地层进行了层序地层综合研究，建立了研究区高分辨率等时地层格架，在等时格架内对本区沙四段进行了沉积体系特征及其展布规律的研究，在综合分析成藏要素的基础上对沙四段有利目标区进行了预测。
The most favourable sequences for subtle traps are cycle 3 and cycle 4 , and the most favourable oil and gas - pool forming regions are jishan sandstone , fan - delta sandstone of south part of linnan sag , sliding turbidity sandstone of the slope part of shuangfen delta front and turbidity and sub - fan near fault of jiangjia dian 基山砂体、临南洼陷南部沙三下扇三角洲砂体、双丰三角洲前缘的斜坡地带的滑塌浊积岩砂体和江家店地区的浊积扇体和近岸水下扇体是最有利的勘探目标区。
Complex subtle trap further falls into structural lithology , structural unconformity and lithology unconformity reservoirs . so far , the main theories to study subtle trap include early seismic stratigraphy and late sequence stratigraphy , between them sequence stratigraphy is most effective , its stand tract concepts for different depositional systems is of important significance 目前，世界上研究隐蔽油气藏的理论主要有早期的地震地层学理论及新兴的层序地层学理论，其中层序地层学理论最为引人注目，且是寻找隐蔽油气藏的最好的方法，其不同水位期对不同沉积体的寻找具有指导意义。
Their distribution of deposition control lithology subtle trap , die - out around paleo - uplift the distribution of subtle traps in the slope , subtle trap forms along faults and above and beneath unconformity boundary . through exploring and studying in huanghua depression many years , we gradually summarize a series of methods and technologies for subtle trap exploration , they are precise stratigraphy correlation on the basis of sequence stratigraphy , including micromarker correlation , element logging , high frequent cycle stratigraphy and precise sequence stratigraphy , besides conventional biography stratigraphy , logging correlation . through using facies analysis method , the type and distribution of reservoir are determined 在黄骅坳陷通过多年的摸索和引用，逐渐形成了一套系统的隐蔽油气藏的研究方法和技术，它们是以层序地层学为代表的地层精细划分方法，用来解决地层划分及归属问题，除常规的生物地层学、岩电特征对比方法外，创新性的运用了包括微标志层划分方法、元素测井方法、高频旋回对比方法及精细层序地层划分方法等四种精细地层划分方法。
By means of kiba formation , k . ibt " and kibt2 segments analysis on the equivalent time stratigraphic framework , subtle traps will be predicted on stratigraphic traps and lithological traps . the results from the research indicated that : ( 1 ) this paper further indicates the control significance of southern boundary fault displacement component , which downthrown side forms syncline or anticline , and points out that 4 anticlines in south are adjustment zone and are the entering lake position of ancient river 本论文的主要认识和结论如下： ( 1 )进一步认识南缘边界断层位移量对下降盘形成次凹或横向突起的控制意义，认出南缘的4个突起是调节带之所在，也是古河流入湖处。这种格局导致凹陷强烈分割，并以横向搬运为主。
