长春油田昌十区块双二段油藏特征及主力剩余油分布

发布时间：2018-01-14 13:04

本文关键词：长春油田昌十区块双二段油藏特征及主力剩余油分布　出处：《吉林大学》2017年硕士论文　论文类型：学位论文

【摘要】：长春油田昌十区块位于鹿乡断陷五星构造带的东北部,工区面积仅为0.5km2。双阳组二段是该区块的主要产油层位。本文结合工区三维地震数据体、二次解释及物性参数资料,以勘查地球物理学、沉积学、石油地质学为理论支撑,运用landmark和双狐软件开展区块内部微幅构造研究并分析油藏特征、成藏条件与剩余油的关系,再结合物性资料划分流动单元。最后运用叠合分析的方法综合考虑沉积微相、微幅构造类型及流动单元的划分结果,预测了双二段主力剩余油分布。具体内容如下:一、微幅构造的类型及分布利用landmark软件完成工区内部33口井的地震合成记录,并在此基础上识别地震反射标志层及断裂位置,制作砂组界面的构造等值线图。最终识别出双二段的56个正向微幅构造分布区,其中正向微幅构造包括微背斜、微鼻状和微断鼻3种。二、生储盖组合及成藏类型区内以下生上储为主,其油源主要来自双一段。大量的烃源岩为形成油藏提供了基础,同时双二段还发育了大量的河道砂体,该砂体物性较好可作为有利储层。双三段泥岩较厚且在全区均有分布,因此可形成稳定的区域盖层。区内成藏类型较多,主要可划分为构造油藏、岩性-构造油藏、岩性油藏三个大类,其中构造油藏可划分为背斜构造油藏、断鼻构造油藏、鼻状构造油藏,岩性-构造油藏主要为砂岩透镜体-构造油藏,岩性油藏可划分为砂岩透镜体油藏和砂体上倾尖灭油藏。三、流动单元划分及剩余油分布优选在前人小层对比以及物性分析的基础上,计算工区内36口井各成因砂体的物性参数并建立了渗流参数J的频数-概率累计曲线,依据频数-概率曲线分布图上不同斜率的直线段将流动单元划分成J≤500、500J≤1500、1500J≤4000、J4000四类,并以沉积相和断点为界制作了流动单元平面分布图,再将流动单元平面图与微幅构造相叠,最终优选出了剩余油分布区,该研究为制定挖潜措施提供了目标。
[Abstract]:Changchun oilfield Chang ten block is located in Lu Xiang Wuxing structural fault depression in the northeast area, the area is only 0.5km2. two segment of Shuangyang Formation is the main oil producing formation in the block area. Based on 3D seismic data interpretation, two physical parameters, in exploration geophysics, sedimentary, petroleum geology theory use block, internal micro structure research and analysis of reservoir characteristics of landmark and DoubleFox software, relationship between the reservoir condition and residual oil, combined with the physical data flow unit division. Finally, by using the method of superposition analysis considering the sedimentary microfacies, micro structure type and division of the flow unit, double two the main section of the residual oil distribution forecast. The specific contents are as follows: first, the synthetic seismogram and the use of landmark software to complete the distribution area of 33 wells within the micro structure of the type, and on the basis of the recognition of seismic reflection The sign layer and fracture location, structural contour map making sand interface. Finally recognize double two section of the 56 positive micro structure distribution, the positive micro structure including micro and micro micro nosing anticline, fault nose 3. Two, source reservoir cap combination and reservoir types in the area below formation, the oil source mainly comes from the first member. A large number of source rock provides the basis for the formation of reservoir, and double two also developed a large number of channel sand body, the sand body with better properties can be used as reservoirs. Three double thick and mudstone in the region are distributed, so it can be the formation of a stable regional caprock. Area reservoir can be divided into many types, the main structural reservoir, lithologic structural reservoir, lithologic reservoir in three categories, which can be divided into structural reservoir anticline reservoir, fault nose structural reservoir, nose structure reservoir, lithologic structural reservoir is mainly sandstone lens body structural oil Reservoir, lithologic reservoir can be divided into sandstone lens reservoir and sandstone pinchout reservoirs. Three, division of flow units and remaining oil distribution optimization based on the analysis of the previous layer correlation and physical property parameters on the calculation in the work area of 36 wells in the sand and set up the frequency of seepage. The number of J probability cumulative curve, according to the frequency - probability distribution curve diagram of different slope of the straight line segment flow unit is divided into J = 500500J = 15001500J = 4000, J4000 four, and the sedimentary facies and the breakpoint boundary made flow unit distribution map, and then flow unit plane map and micro structure overlapping finally, selected the remaining oil distribution area, this study provides a target for the development of measures.

【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE327;P618.13

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