本文選題：車鎮(zhèn)凹陷 + 大王莊油田　； 參考：《中國石油大學(xué)(華東)》2015年碩士論文

【摘要】：大王莊油田位于車鎮(zhèn)凹陷南部,構(gòu)造上處于大王北洼陷和義和莊凸起之間的斜坡帶,沙二段是其主力含油層系,具有非常好的勘探潛力。然而,區(qū)內(nèi)大2、大5、大13、大18等塊缺乏系統(tǒng)的地質(zhì)統(tǒng)層和儲層研究,沉積相變化快、成藏規(guī)律認(rèn)識不夠清楚,勘探進(jìn)入徘徊期。針對工區(qū)勘探現(xiàn)狀,本文在總結(jié)前人研究成果的基礎(chǔ)上,對研究區(qū)沙二段沉積微相、儲層特征及油氣分布規(guī)律進(jìn)行了系統(tǒng)研究。本文研究將大王莊地區(qū)沙二段劃分為4個砂層組和21個小層,其中四砂組與下伏地層沙三段呈角度不整合接觸。從整體來看,大王莊沙二段地層具有北厚南薄、東厚西薄的特點,而且在研究區(qū)中北部斷失較明顯。大王莊沙二段屬濱淺湖灘壩發(fā)育區(qū),主要發(fā)育有壩主體、壩側(cè)緣、灘脊、灘席和泥微相等沉積微相類型。灘砂和壩砂在平面上連續(xù)成片分布,縱向上相互疊置,橫向連通性好。沙二段灘壩儲層巖性以粉砂巖和細(xì)砂巖為主,主要發(fā)育中孔中滲和中孔低滲儲層,可分為Ⅰ類儲層、Ⅱ類儲層和Ⅲ類儲層。Ⅰ類儲層和Ⅱ類儲層是孔滲性較好的儲層,主要分布于壩砂中。大王莊沙二段灘壩油藏在平面上表現(xiàn)為面積小、零星發(fā)育,在垂向上表現(xiàn)為多薄油層發(fā)育。二砂組和三砂組為主力含油層系,發(fā)育多套薄油層。油氣分布主要受油源條件、儲集條件以及構(gòu)造條件三大因素的控制,研究區(qū)具備了優(yōu)越的運(yùn)移條件,斷層發(fā)育較多,儲層的孔滲性較好,使該區(qū)具備了良好的油氣成藏條件。通過地震剖面和圈閉預(yù)測等特征,優(yōu)選了三個有利勘探目標(biāo),即大2井區(qū)斷塊油氣藏、大5-11井區(qū)斷塊油氣藏、大132井區(qū)背斜油氣藏。
[Abstract]:Dawangzhuang oil field is located in the south of Cazhen sag and is structurally located in the slope zone between the Dawangbei depression and Yihezhuang uplift. The second member of Shahezhuang is the main oil-bearing strata and has very good exploration potential. However, there is a lack of systematic study of geological strata and reservoirs in blocks Da 2, Da 5, Da 13 and Da 18 in the region, where sedimentary facies change rapidly, the rules of reservoir formation are not well understood, and exploration enters into a wandering period. In view of the present situation of exploration in the working area, the sedimentary microfacies, reservoir characteristics and oil and gas distribution of the second member of the Shahejie formation are systematically studied in this paper on the basis of summarizing the previous research results. In this paper, the second member of the Sha member in Dawangzhuang area is divided into 4 sand formations and 21 sub-layers, in which the four sand formations are in contact with the third member of the underlying formation in an angle unconformity. On the whole, the strata of the second member of Dawangzhuang Sha formation are thick in the north, thick in the south and thin in the east and west, and the fault loss is obvious in the central and northern part of the study area. The second member of Dawangzhuang Sha belongs to the shoreline shallow lake beach and dam development area. The main body of the dam, the lateral edge of the dam, the beach ridge, the beach mat and the mud microfacies are mainly developed. The beach sand and the dam sand are distributed continuously on the plane and superimposed on each other longitudinally, and the transverse connectivity is good. The lithology of the reservoir is mainly siltstone and fine sandstone, and mainly develops mesoporous and mesoporous low permeability reservoirs, which can be divided into 鈪，

本文編號：1988912