【正文】 ormity structure styles. Petroleum distribution and its scale are controlled by generating ability of Source rock. Petroleum accumulation area is decided by positive tectonic units. If carrier system existed , oil column of stratigraphic reservoirs is effected by four main factors which including generation expulsion quantity,migrating distance, dip angle and capillary resistance of carrier layer. Based on the analysis of single factor, the prediction model of height of oil columu through multi—factor regressions was established . Based on the model , the paper defruited favorable areas, which reserves in these areas exceed x 1 08t . Formation Mechanism and Distribution of PaleogeneNeogene Stratigraphic Reservoirs in Jiyang Depression 2 Research results of the paper bined closely with exploration practice, and according to previous research results， 31 exploration wells had been drilled, which of them 17 wells were successfully from 2020 to 2020. There is accumulation proved reserves Was up to 2362x104t. and predict reserves was to 3684x104t . Keywords： Paleogene。 Jiyang depression Formation Mechanism and Distribution of PaleogeneNeogene Stratigraphic Reservoirs in Jiyang Depression 3 1. Preface Foundationnd and signifacance of the topic Theme origin The theme is from the Sinopcc project： Forming and distribution of Tertiary stratigraphic reservoir of Jiyang depression . Theme number： P06012， deadline： 20202020 Foundation and baekground of the theme The tectonic events frequently occurred in Jiyang depression in paleogeneNeogene． It was favour of forming stratigraphic reservoir because of existence of several kinds of unconformity . Based on statistical data , beneficial area reservoired oil is about 9500km2, and the remaining resource is about 16x 108t in stratigraphic reservoirs of paleogeneNeogene stratas． Since 1980s， many overlap and unconformity reservoirs have been founded , explored reserves Was apparently increased with deep exploring. By the end of 2020 , explored resource had been up to 108t which showed a large exploring potential. But , in fact , the research on stratigraphic reservoir is lack or Uttle , especially, Accumulation pattern and forecasting model of oil have not been studied systematically. For example , the successful ratio of exploration well testing which is the lowest in allkinds reservoirs Was only ％ about stratigraphie reservoir in paleogeneNeogene in Jiyang depression from 20202020 . The main loss reason for the overlap andunconformity reservoirs exploration is migration and trap of oil that is ％ and ％ .Hereby , oil migration problem and trap validity are importantaspects for overlap and unconformity reservoir exploring. In short， it has three aspects as followed： (1)Shallow prehension about conduction of ability of unconformity Research on unconformity in present indicated that it is not a simple surface threedimension body which is important for migration of oil and gas． There has some deep knows about the basins in west China and the marine basins in China. The systematic theory is lack about structure characteristic which deeply affect accumulating oil and gas. (2)The remain uncertain migration and accumulation process of oil and gas about Formation Mechanism and Distribution of PaleogeneNeogene Stratigraphic Reservoirs in Jiyang Depression 4 stratigraphic reservoir remain uncertain . Stratigraphic reservoir lay in edge of basin . So it is difficult to exactly hold accumulation regular of oil and gas because far distance traps and hydrocarbon resources make a plicated migration process. (3)Forecasting model of stratigraphic reservoir that could be used to guide explore is lack It is necessity to finely evaluate and explore stratigraphic reservoir along with degree of exploration. Mayor controlling factors remain uncertain in construction of forecasting model of stratigraphic reservoirs. Aim, sense and application value of theme The study resolves the problem of statigraphic reservoir formation and distribution of PaleogeneNeogene in Jiyang depression. By analysis of uniformity structure, their affect on statigraphic reservoir formation will be identify。近些年，濟陽坳陷相繼發(fā)現(xiàn)了多個古近系．新近系地層油藏 ,探明儲量呈明顯上升趨勢，充分展示了該類油藏具有較大的勘探潛力。以巖心分析為約束，應(yīng)用有序數(shù)列最優(yōu)分割與主成分分析方法，建立了不整合結(jié)構(gòu)測井量化判識圖版，實現(xiàn)了無巖心情況下的不整合結(jié) 構(gòu)識別。由于陸相斷陷盆地以砂泥巖互層為主，泥巖層風化后物性改善不大，不利于油氣沿不整合長距離橫向輸導(dǎo)，而只在局部地區(qū)起橫向或垂向輸導(dǎo)作用。 關(guān)鍵詞： 古近系 。根據(jù)最新資料，古近系一新近系地層油藏所處有利區(qū)帶面積 9500km2，區(qū)帶剩余資源量 16 X 108t。不整合三維結(jié)構(gòu)體對油氣的輸導(dǎo)與遮擋產(chǎn)生重要的作用，這在中國西部盆地及海相盆地已經(jīng)有了一些較深入認識。 研究成果不僅可有效指導(dǎo)濟陽坳陷古近系．新近系地層油藏目標的勘探，提高鉆探成功率，為中石化上游增儲上產(chǎn)提供重要的技術(shù)支持 ，而且對于整個渤海灣盆地地層油藏的勘探具有重要的借鑒意義。 從國內(nèi)外有關(guān)地層油藏的研究內(nèi)容來看，主要涉及到三大部分，一是不整合及其控藏作用，二是地層圈閉發(fā)育規(guī)律，三是地層油藏油氣運聚機制。 上世紀 90 年代以來，國內(nèi)外學者在塔里木、鄂爾多斯、準噶爾、渤海灣等盆地相繼開展了不整合及其控藏作用方面的研究并取得一定成果。綜合起來，主要表現(xiàn)在控儲、控圈、控運、控聚及對油藏的破壞等五個方面。童曉光等根據(jù)中國東部第三紀陸相斷陷盆地隱蔽油藏發(fā)育規(guī)律的研究，提出了箕狀斷陷盆地地層超覆油藏和不整合遮擋油藏發(fā)育的四大主控因素，一是前古近系基巖的時代、巖性、產(chǎn)狀和風化。并將以上巖性配置關(guān)系與樣式組合成多種構(gòu)建樣式類型，認為不整合對油氣的這種運聚能力 主要取決于不整合上、下地層的巖性配置關(guān)系，不同的巖性配置能起到不同的輸導(dǎo)和遮擋作用。當代地層學和現(xiàn)代油氣成藏理論有力地推動了不整合的研究和應(yīng)用，尤其是層序地層學在應(yīng)用不整合推斷空缺歷史方面起到了重要的作用。按照圈閉所處的位置、產(chǎn)狀、遮擋條件，可進一步分為地層超覆油藏、不整合遮擋油藏及古潛山油藏。以往對地層油藏含油程 濟陽坳陷古近系一新近系地層油藏形成機制與分布規(guī)律 4 度的還沒有開展相關(guān)研究，含油程度主控因素還很不清楚，沒有建立起合適的含油程度預(yù)測模型 。對制約古近系一新近系地層油藏勘探的關(guān)鍵地質(zhì)問題進一步分析，可歸納為以下三方面： 一是不整合樣式結(jié)構(gòu)及其控藏作用認識還較膚淺。 濟陽坳陷 選題依據(jù)及意義 課題來源 課題來源于中國石化股份公司《濟陽坳陷第三系不整合油氣藏形成與分布規(guī) 濟陽坳陷古近系一新近系地層油藏形成機制與分布規(guī)律 3 律》科研項目。課題研究與實踐緊密結(jié)合。其中，地層超覆圈閉形成于削超樣式、平超樣式的不整合中，不整合面上、下為滲透性結(jié)構(gòu)層、非滲透性結(jié)構(gòu)層 濟陽坳陷古近系一新近系地層油藏形成機制與分布規(guī)律 2 對接；不整合遮擋圈閉則主要形成于削超樣式、削平樣式的不整合中，不整合面上、下為非滲透性結(jié)構(gòu)層、滲透性結(jié)構(gòu)層對接。垂向上發(fā)育三層結(jié)構(gòu)，即不整合頂板巖石、風化粘土層和半風化巖石，風化粘土層缺失時成為二層結(jié)構(gòu)，部分半風化巖石頂部因后期完全充填而形成一層致密“硬殼”。Lhezhuang reservoir mainly lie in 100m above old burial hill old layer reflect shaft in 2020. Capping formation and barrier f