肇源南長(zhǎng)47井區(qū)油水分布規(guī)律及主控因素研究
發(fā)布時(shí)間:2018-05-01 16:19
本文選題:肇源南地區(qū) + 扶余油層。 參考:《東北石油大學(xué)》2015年碩士論文
【摘要】:利用肇源南地區(qū)長(zhǎng)47井區(qū)三維疊前偏移處理數(shù)據(jù)體,結(jié)合水平切片、相干體、屬性體及多項(xiàng)彩色顯示等技術(shù),對(duì)肇源南地區(qū)進(jìn)行了三維立體精細(xì)構(gòu)造解釋、儲(chǔ)層預(yù)測(cè)等方面研究,結(jié)合剖面及平面斷裂特征,分析了肇源南地區(qū)斷裂發(fā)育特征及斷裂期次,結(jié)合已鉆井油水分布特點(diǎn),探討了不同期次斷裂對(duì)扶余油層成藏的控制作用。從三維地震剖面看:縱向上主要呈“花狀”組合模式和“塹壘”式組合模式。本研究區(qū)斷層共發(fā)育有3期斷層:分別為早白堊世早期早期斷層、泉頭組沉積末期─青山口組沉積初期的中期斷層以及嫩江組末期及以后各沉積時(shí)期形成的斷層。肇源南長(zhǎng)47井區(qū)扶余油層斷裂以中期斷層為主,早期斷層和晚期斷層發(fā)育較少。肇源南地區(qū)扶余油層油氣主要來(lái)源于三肇凹陷扶楊油層中的油在浮力作用下沿被河道砂體溝通的斷裂密集帶長(zhǎng)距離側(cè)向運(yùn)移至肇源南地區(qū)。在斷裂期次劃分及砂體發(fā)育情況的基礎(chǔ)上,利用已鉆井的測(cè)井、試油等資料,對(duì)長(zhǎng)47區(qū)塊油水分布規(guī)律及油藏類型研究,得到油藏類型主要是以斷層—巖性油藏為主。其主控因素為垂向運(yùn)移斷層遮擋控藏模式、先垂向后砂體側(cè)向運(yùn)移斷層遮擋和巖性雙重控藏模式。
[Abstract]:Using the data volume of 3D prestack migration processing in Chang47 well area of Zhaoyuannan area, combined with the techniques of horizontal slice, coherent volume, attribute volume and multi-color display, the three-dimensional fine structure interpretation of Zhaoyuannan area is carried out. Based on the study of reservoir prediction and combined with the characteristics of profile and plane faults, this paper analyzes the characteristics of fault development and fault periods in Zhaoyuannan area, and discusses the controlling effect of different faults on the reservoir formation of Fuyu reservoir in combination with the distribution characteristics of oil and water in drilling wells. From the three-dimensional seismic profile, there are mainly "flower-like" and "cut barrier" combination models in longitudinal. There are three faults in this study area: the early Cretaceous fault, the middle fault in the early Qantou formation, the middle fault in the early Qingshankou formation, and the fault formed in the late Nenjiang formation and later sedimentary periods. The fault of Fuyu reservoir in Nanchang 47 well area of Zhaoyuan is mainly intermediate fault, but the early fault and late fault are less developed. The oil and gas of Fuyu reservoir in Zhaoyuannan area is mainly derived from the long distance lateral migration of oil from Fuyang reservoir in Sanzhao sag along the faulted dense zone communicated by channel sand body to Zhaoyuannan area under buoyancy. On the basis of the division of fault stages and the development of sand bodies, the distribution of oil and water and reservoir types in Block Chang47 are studied by using well logging and oil testing data. The results show that the main reservoir types are fault-lithologic reservoirs. The main controlling factors are vertical migration fault occlusion and reservoir control mode, first vertical sand body lateral migration fault occlusion and lithologic dual reservoir control model.
【學(xué)位授予單位】:東北石油大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:P618.13
【參考文獻(xiàn)】
相關(guān)期刊論文 前2條
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