龙虎泡油田金27复杂断块构造解释方法研究

发布时间：2018-05-06 15:21

本文选题：构造 + 精细解释　；参考：《东北石油大学》2017年硕士论文

【摘要】：研究区块位于松辽盆地龙虎泡油田金27三维地震工业区内,萨尔图油层为河流、三角洲及滨浅湖相沉积,沉积岩层厚度较薄,砂泥岩薄互层发育,是受断层、构造、岩性多种因素控制的复合型油藏,储层物性差异较大,层间矛盾突出,不同区块的砂体分布形态不同,区块构造特征较为复杂,水平井开发效果优于直井。所以,为提高水平井钻井效果,降低钻井风险及工作量,需要对该区块的复杂构造进行解释。目前常采用的构造解释方法,受地震资料分辨率的影响,对断层复杂的区块构造解释精度不能满足实际生产的需要。因此,需要开展复杂断层构造精细解释方法的研究。根据研究目的,本文共有4部分内容。第一部分:对某区块的地理位置和构造位置、地层特征及沉积相特征开展研究,了解该区块的地质概况;第二部分:根据某区块的井斜数据,明确影响斜井构造校正产生误差的主要因素,并结合Landmark、双狐等软件,对多种井斜数据校正方法对比,优选出最佳的井斜数据校正方法;第三部分:采用井震结合的方法,实现该区块构造的三维精细解释,得到该区块断层、小层顶面构造面等构造特征,以满足油田开发的需要;第四部分:三维地震构造精细解释与构造图研究。通过开展该研究,建立某区块构造精细解释的标准;充分认识该区块的构造特征对研究油气成藏、剩余油分布、油水分布规律等方面具有重要作用;对该区块的构造解释、水平井钻井、区块构造成图等工作提供技术支撑;为降低钻井风险,减少钻井调整工作量,提高水平井钻井效果,提供地质参考;形成一套复杂断层区块的构造精细解释方法,为其他油田构造的精细解释提供经验借鉴。
[Abstract]:The research block is located in the Jin27 Three-dimensional Seismic Industrial Zone of Longhubao Oilfield, Songliao Basin. The Saltu oil layer is a fluvial, delta and shore-shallow lacustrine facies. The sedimentary rock layer is thin in thickness, and the sand and mudstone thin interbed is developed. It is a fault and structure. In complex reservoirs controlled by many lithology factors, the reservoir physical properties are different, the contradiction between layers is prominent, the distribution of sand bodies in different blocks is different, the structural characteristics of blocks are more complex, and the development effect of horizontal wells is better than that of straight wells. Therefore, in order to improve the drilling effect of horizontal well and reduce the drilling risk and workload, it is necessary to interpret the complex structure of the block. The structural interpretation method, which is often used at present, is affected by the resolution of seismic data, so the interpretation accuracy of blocks with complex faults can not meet the needs of actual production. Therefore, the fine interpretation method of complex fault structure needs to be studied. According to the purpose of the research, there are four parts in this paper. The first part is to study the geographical and structural location, stratigraphic characteristics and sedimentary facies characteristics of a certain block, to understand the geological situation of the block, the second part: according to the well deviation data of a certain block, It is clear that the main factors that affect the error of structural correction of inclined wells, and combined with Landmark, Shuanghu and other software, the best correction method of well deviation data is selected by comparing many kinds of well deviation data correction methods. The third part: the method of combining well and earthquake is adopted. In order to meet the needs of oil field development, the structural features of the block are obtained, such as fault of the block and structural plane of the top of the small layer. Part IV: fine interpretation of 3D seismic structure and study of structural map. By carrying out the research, the standard of fine interpretation of the structure of a certain block is established, the structural characteristics of the block are fully understood, which plays an important role in the study of oil and gas accumulation, the distribution of remaining oil, the distribution of oil and water, and the structural interpretation of the block. Horizontal well drilling and block structure mapping provide technical support; provide geological reference for reducing drilling risk, reducing drilling adjustment workload, improving horizontal well drilling effect, and forming a set of fine structural interpretation methods for complex fault blocks. It can be used for reference for fine interpretation of other oilfield structures.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13

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