金家油田古近系油气富集规律研究
发布时间：2018-09-14 15:01
【摘要】：金家油田地处山东省桓台县,构造位置位于济阳坳陷东营凹陷南斜坡金家樊家鼻状构造带南端,主力油层为古近系沙河街组。金家油田油藏具有含油面积小且多为断层所遮挡的特征,由于控藏因素复杂,至今尚未搞清油气富集规律,因此亟需利用现有的技术优势重新认识研究区古近系油气富集规律,指导油气勘探开发。论文在充分利用地震、钻井、测井及分析测试等资料的基础上,结合前人研究成果,通过对油气成藏地质要素的分析和典型油藏的精细解剖,明确了油气成藏主控因素,建立了油气成藏模式,揭示了油气富集规律,预测了有利勘探区带。油气成藏地质要素研究表明,金家地区油源主要来自于博兴凹陷Es4和Es3下优质烃源岩,目前均已大量生烃;古近系储层以三角洲相为主,砂体较发育,以沙一、沙三上和沙三下最优,多属于中孔—低渗和高孔—中高渗储层;生储盖组合分为侧变式和下生上储式两种类型;断层和砂体是主要的油气输导通道,与不整合共同组成砂体-断层-砂体和砂体-断层-不整合两种主要的输导体系类型,控制油气自北向南呈阶梯状运移;圈闭类型多样,以岩性-构造圈闭最为发育,油气藏整体保存条件较好。油藏解剖结果表明,优质烃源岩、良好的储集层及输导体系有效性是金家油田有利的成藏条件,主要发育构造-岩性、不整合遮挡和岩性等类型油气藏,不同类型油气藏成藏主控因素存在差异,发育了源外断-砂输导岩性圈闭成藏模式、源外断-砂输导岩性—断层复合圈闭成藏模式和源外断-砂-不整合输导地层圈闭成藏模式。受输导体系、圈闭形态、有利储层及保存条件的控制,油气纵向上主要富集于沙一段、沙二段和沙三上亚段的剥蚀线及断层附近,平面上集中于沙一段。通过对油气成藏综合研究和评价,预测了不同层位、不同类型油气藏的有利勘探区带和目标。
[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.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：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.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
【参考文献】
相关期刊论文 前10条
1 张立宽;罗晓容;宋国奇;郝雪峰;邱桂强;宋成鹏;雷裕红;向立宏;刘克奇;解玉宝;;油气运移过程中断层启闭性的量化表征参数评价[J];石油学报;2013年01期
2 吴孔友;邹才能;g，
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