金家油田古近系油氣富集規(guī)律研究
發(fā)布時間：2018-09-14 15:01
【摘要】：金家油田地處山東省桓臺縣,構(gòu)造位置位于濟陽坳陷東營凹陷南斜坡金家樊家鼻狀構(gòu)造帶南端,主力油層為古近系沙河街組。金家油田油藏具有含油面積小且多為斷層所遮擋的特征,由于控藏因素復雜,至今尚未搞清油氣富集規(guī)律,因此亟需利用現(xiàn)有的技術(shù)優(yōu)勢重新認識研究區(qū)古近系油氣富集規(guī)律,指導油氣勘探開發(fā)。論文在充分利用地震、鉆井、測井及分析測試等資料的基礎(chǔ)上,結(jié)合前人研究成果,通過對油氣成藏地質(zhì)要素的分析和典型油藏的精細解剖,明確了油氣成藏主控因素,建立了油氣成藏模式,揭示了油氣富集規(guī)律,預測了有利勘探區(qū)帶。油氣成藏地質(zhì)要素研究表明,金家地區(qū)油源主要來自于博興凹陷Es4和Es3下優(yōu)質(zhì)烴源巖,目前均已大量生烴;古近系儲層以三角洲相為主,砂體較發(fā)育,以沙一、沙三上和沙三下最優(yōu),多屬于中孔—低滲和高孔—中高滲儲層;生儲蓋組合分為側(cè)變式和下生上儲式兩種類型;斷層和砂體是主要的油氣輸導通道,與不整合共同組成砂體-斷層-砂體和砂體-斷層-不整合兩種主要的輸導體系類型,控制油氣自北向南呈階梯狀運移;圈閉類型多樣,以巖性-構(gòu)造圈閉最為發(fā)育,油氣藏整體保存條件較好。油藏解剖結(jié)果表明,優(yōu)質(zhì)烴源巖、良好的儲集層及輸導體系有效性是金家油田有利的成藏條件,主要發(fā)育構(gòu)造-巖性、不整合遮擋和巖性等類型油氣藏,不同類型油氣藏成藏主控因素存在差異,發(fā)育了源外斷-砂輸導巖性圈閉成藏模式、源外斷-砂輸導巖性—斷層復合圈閉成藏模式和源外斷-砂-不整合輸導地層圈閉成藏模式。受輸導體系、圈閉形態(tài)、有利儲層及保存條件的控制,油氣縱向上主要富集于沙一段、沙二段和沙三上亞段的剝蝕線及斷層附近,平面上集中于沙一段。通過對油氣成藏綜合研究和評價,預測了不同層位、不同類型油氣藏的有利勘探區(qū)帶和目標。
[Abstract]:Jinjia Oilfield is located in Huantai County Shandong Province. The structural position is located at the southern end of Jinjiafangjia-nose structural belt on the south slope of Dongying Sag in Jiyang Depression. The main reservoir is Shahejie formation of Paleogene system. The reservoir of Jinjia Oilfield has the characteristics of small oil area and mostly blocked by fault. Because of the complex factors of controlling reservoir, it is not clear about the law of oil and gas enrichment so far. Therefore, it is urgent to re-understand the law of oil and gas enrichment of Paleogene in the study area by using the existing technical advantages. To guide oil and gas exploration and development. On the basis of making full use of seismic, drilling, logging and analyzing and testing data, combined with the previous research results, the main controlling factors of oil and gas accumulation are determined by analyzing the geological elements of oil and gas accumulation and the fine anatomy of typical reservoirs. The oil and gas accumulation model is established, the law of oil and gas enrichment is revealed, and the favorable exploration zone is predicted. The study of oil and gas accumulation geological elements shows that the oil source in Jinjia area mainly comes from the high quality hydrocarbon source rocks under Es4 and Es3 in Boxing Sag, and has a large amount of hydrocarbon generation at present, and the Paleogene reservoirs are mainly delta facies, sand bodies are relatively developed, and the main source rocks are sand one. Most of them belong to mesoporous low permeability and high porosity to medium high permeability reservoirs, the assemblage of source, reservoir and cap is divided into two types: lateral variation type and lower generation upper reservoir type, fault and sand body are the main oil and gas transportation channels, Together with unconformity, two main types of transport systems, sand body, fault sand body and sand body, fault and unconformity, are formed, which control oil and gas migration from north to south, the types of traps are various, the lithologic and structural traps are the most developed. The overall preservation conditions of oil and gas reservoirs are good. The results of reservoir anatomy show that high quality source rock, good reservoir and transportation system are favorable reservoir forming conditions in Jinjia Oilfield, and they mainly develop structural lithology, unconformity occlusion and lithology, etc. The main factors of reservoir formation are different in different types of oil and gas reservoirs, and the reservoir forming model is developed by fault-sand transport lithologic traps outside the source. The reservoir forming model of the complex trap of source fault sand transport lithology and fault and the reservoir formation model of source fault sand unconformity transport stratigraphic trap. Controlled by the transport system, trap morphology, favorable reservoir and preservation conditions, oil and gas are mainly concentrated in the first member of Sha, the denudation lines and faults of the second member of Sha and the upper submember of the third member of the sand, and the plane is concentrated in the first member of sand. Through the comprehensive study and evaluation of oil and gas accumulation, the favorable exploration zones and targets of different layers and different types of reservoirs are predicted.
【學位授予單位】：中國石油大學(華東)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13
[Abstract]:Jinjia Oilfield is located in Huantai County Shandong Province. The structural position is located at the southern end of Jinjiafangjia-nose structural belt on the south slope of Dongying Sag in Jiyang Depression. The main reservoir is Shahejie formation of Paleogene system. The reservoir of Jinjia Oilfield has the characteristics of small oil area and mostly blocked by fault. Because of the complex factors of controlling reservoir, it is not clear about the law of oil and gas enrichment so far. Therefore, it is urgent to re-understand the law of oil and gas enrichment of Paleogene in the study area by using the existing technical advantages. To guide oil and gas exploration and development. On the basis of making full use of seismic, drilling, logging and analyzing and testing data, combined with the previous research results, the main controlling factors of oil and gas accumulation are determined by analyzing the geological elements of oil and gas accumulation and the fine anatomy of typical reservoirs. The oil and gas accumulation model is established, the law of oil and gas enrichment is revealed, and the favorable exploration zone is predicted. The study of oil and gas accumulation geological elements shows that the oil source in Jinjia area mainly comes from the high quality hydrocarbon source rocks under Es4 and Es3 in Boxing Sag, and has a large amount of hydrocarbon generation at present, and the Paleogene reservoirs are mainly delta facies, sand bodies are relatively developed, and the main source rocks are sand one. Most of them belong to mesoporous low permeability and high porosity to medium high permeability reservoirs, the assemblage of source, reservoir and cap is divided into two types: lateral variation type and lower generation upper reservoir type, fault and sand body are the main oil and gas transportation channels, Together with unconformity, two main types of transport systems, sand body, fault sand body and sand body, fault and unconformity, are formed, which control oil and gas migration from north to south, the types of traps are various, the lithologic and structural traps are the most developed. The overall preservation conditions of oil and gas reservoirs are good. The results of reservoir anatomy show that high quality source rock, good reservoir and transportation system are favorable reservoir forming conditions in Jinjia Oilfield, and they mainly develop structural lithology, unconformity occlusion and lithology, etc. The main factors of reservoir formation are different in different types of oil and gas reservoirs, and the reservoir forming model is developed by fault-sand transport lithologic traps outside the source. The reservoir forming model of the complex trap of source fault sand transport lithology and fault and the reservoir formation model of source fault sand unconformity transport stratigraphic trap. Controlled by the transport system, trap morphology, favorable reservoir and preservation conditions, oil and gas are mainly concentrated in the first member of Sha, the denudation lines and faults of the second member of Sha and the upper submember of the third member of the sand, and the plane is concentrated in the first member of sand. Through the comprehensive study and evaluation of oil and gas accumulation, the favorable exploration zones and targets of different layers and different types of reservoirs are predicted.
【學位授予單位】：中國石油大學(華東)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13
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相關(guān)期刊論文 前10條
1 張立寬;羅曉容;宋國奇;郝雪峰;邱桂強;宋成鵬;雷裕紅;向立宏;劉克奇;解玉寶;;油氣運移過程中斷層啟閉性的量化表征參數(shù)評價[J];石油學報;2013年01期
2 吳孔友;鄒才能;g，
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