高臺(tái)子油田扶楊油層斷裂特征及其控藏作用
發(fā)布時(shí)間：2019-05-07 06:31
【摘要】：高臺(tái)子油田位于松遼盆地北部中央坳陷區(qū)大慶長(zhǎng)垣南部,扶楊油層在中生界白堊系泉頭組三、四段地層內(nèi)。高臺(tái)子油田斷層較為發(fā)育,油藏受斷層控制明顯,油藏性質(zhì)及其受控因素較為模糊,這些將直接影響到研究區(qū)勘探開發(fā)部署,因此需要研究清楚。本文在綜合前人研究成果和研究區(qū)三維地震、測(cè)井和地質(zhì)資料的基礎(chǔ)上,運(yùn)用構(gòu)造地質(zhì)學(xué)、地震勘探學(xué)和成藏動(dòng)力學(xué)等理論,系統(tǒng)的開展了構(gòu)造演化及發(fā)育特征、油氣成藏主控因素及成藏模式、油水分布規(guī)律等方面的研究。通過(guò)對(duì)高臺(tái)子油田斷裂系統(tǒng)及演化特征研究,在高臺(tái)子油田西北部識(shí)別出逆斷層一條,該逆斷層主要發(fā)育在登婁庫(kù)及泉頭組,是早期正斷層后期反轉(zhuǎn)形成,消失于青山口組泥巖段。該斷層對(duì)其兩側(cè)油氣聚集成藏具有一定的控制作用。基于研究區(qū)斷裂特征的研究,總結(jié)油水分布規(guī)律,分析控制油水分布的因素,研究認(rèn)為,垂向上主要表現(xiàn)為上油下水,不同圈閉的油水界面差別較大,平面上油水分布受局部構(gòu)造控制受斷層分割控制。斷裂密集帶周圍油氣連片分布且相對(duì)富集;構(gòu)造高部位主要發(fā)育油層,并呈現(xiàn)出向低部位逐漸變薄的趨勢(shì),油水分布受到構(gòu)造控制較為明顯。在圈閉解剖的基礎(chǔ)上,研究油氣成藏條件、油藏類型,從構(gòu)造、巖性等方面研究分析成藏主控因素,其中構(gòu)造背景及圈閉發(fā)育條件是油成藏的關(guān)鍵。總結(jié)成藏模式,即源邊近距離垂向運(yùn)聚成藏模式和源外長(zhǎng)距離側(cè)向運(yùn)移斷控成藏模式。
[Abstract]:Gaotaizi Oilfield is located in the southern part of Daqing Placanticline in the northern central depression area of Songliao Basin. The Fuyang oil layer is in the third and fourth member strata of the Cretaceous Quantou formation in the Mesozoic. The faults in Gaotaizi oilfield are relatively well developed, the reservoir is controlled by faults, and the reservoir properties and its controlled factors are fuzzy, which will directly affect the exploration and development deployment in the study area, so it needs to be studied clearly. Based on the previous research results and three-dimensional seismic, logging and geological data of the study area, this paper systematically develops the structural evolution and development characteristics by using the theories of tectonic geology, seismic exploration and reservoir-forming dynamics, etc. The main controlling factors and reservoir-forming model of oil-gas reservoir-forming and the distribution law of oil-water are studied in this paper. By studying the fault system and evolution characteristics of Gaotaizi Oilfield, a reverse fault has been identified in the northwest of Gaotaizi Oilfield. The reverse fault is mainly developed in Denglouku and Quantou formation, which is the reverse formation of the early normal fault and the late stage of the normal fault. It disappears in the mudstone member of Qingshankou formation. The fault can control the accumulation of oil and gas on both sides of the fault to a certain extent. Based on the study of fracture characteristics in the study area, the distribution law of oil and water is summarized, and the factors controlling the distribution of oil and water are analyzed. The results show that the oil-water interface of different traps is different from that of oil-water, and that the oil-water interface of different traps is different greatly. The distribution of oil and water on the plane is controlled by local structure and fault segmentation. The oil and gas patches around the fault dense zone are distributed and relatively enriched, and the oil layers are mainly developed in the high part of the structure and tend to become thinner gradually towards the lower part, and the distribution of oil and water is controlled by the structure obviously. On the basis of trap anatomy, the reservoir forming conditions and reservoir types are studied, and the main controlling factors of reservoir formation are analyzed from the aspects of structure and lithology, among which the tectonic background and trap development conditions are the key factors for reservoir formation. The reservoir-forming model is summarized, that is, the source-side vertical migration-accumulation model and the source-foreign distance lateral migration fault-controlled reservoir-forming 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
本文編號(hào)：2470845
[Abstract]:Gaotaizi Oilfield is located in the southern part of Daqing Placanticline in the northern central depression area of Songliao Basin. The Fuyang oil layer is in the third and fourth member strata of the Cretaceous Quantou formation in the Mesozoic. The faults in Gaotaizi oilfield are relatively well developed, the reservoir is controlled by faults, and the reservoir properties and its controlled factors are fuzzy, which will directly affect the exploration and development deployment in the study area, so it needs to be studied clearly. Based on the previous research results and three-dimensional seismic, logging and geological data of the study area, this paper systematically develops the structural evolution and development characteristics by using the theories of tectonic geology, seismic exploration and reservoir-forming dynamics, etc. The main controlling factors and reservoir-forming model of oil-gas reservoir-forming and the distribution law of oil-water are studied in this paper. By studying the fault system and evolution characteristics of Gaotaizi Oilfield, a reverse fault has been identified in the northwest of Gaotaizi Oilfield. The reverse fault is mainly developed in Denglouku and Quantou formation, which is the reverse formation of the early normal fault and the late stage of the normal fault. It disappears in the mudstone member of Qingshankou formation. The fault can control the accumulation of oil and gas on both sides of the fault to a certain extent. Based on the study of fracture characteristics in the study area, the distribution law of oil and water is summarized, and the factors controlling the distribution of oil and water are analyzed. The results show that the oil-water interface of different traps is different from that of oil-water, and that the oil-water interface of different traps is different greatly. The distribution of oil and water on the plane is controlled by local structure and fault segmentation. The oil and gas patches around the fault dense zone are distributed and relatively enriched, and the oil layers are mainly developed in the high part of the structure and tend to become thinner gradually towards the lower part, and the distribution of oil and water is controlled by the structure obviously. On the basis of trap anatomy, the reservoir forming conditions and reservoir types are studied, and the main controlling factors of reservoir formation are analyzed from the aspects of structure and lithology, among which the tectonic background and trap development conditions are the key factors for reservoir formation. The reservoir-forming model is summarized, that is, the source-side vertical migration-accumulation model and the source-foreign distance lateral migration fault-controlled reservoir-forming 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
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