准噶尔盆地莫10地区侏罗系三工河组油气储层分布预测

发布时间：2018-02-12 00:40

本文关键词： 准噶尔盆地莫10地区三工河组二段构造解释储层预测评价部署　出处：《西南石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：莫10区块位于莫索湾凸起南部斜坡带处,四而环生油凹陷,油气资源丰富、构造位置有利、成藏条件优越,是油气运移的有利指向区域。其三工河组二段油气成臧复杂,岩性横向变化快,含油砂层边界的刻画是勘探成功的关键因素之一。本论文以莫10区块三维地震资料为基础,通过地震地质层位精细标定,建立起侏罗系井震地层格架,对目的层三工河组进行了精细构造解释。工区整体构造为山东南向西北抬升的单斜,地层起伏变化趋势较缓,层问厚度变化均匀,重新确立了大量断层的分布,落实了研究区基本构造形态,工区东南部发育大型鼻状构造带,该鼻状构造被NE-SW和NW-SE向两组断裂切割,使该鼻状构造被分割成多个断块圈闭。新发现构造圈闭6个,总面积33km2,并对各个圈闭进行了精细的圈闭构造描述。在钻测井资料统计分析的基础上,分析了井下储层测井响应特征,通过测井约束反演,地震属性提取对目的层进行了储层预测与含油气检测,其中利用曲线重构的方法提高了储层预测的精度。针对该区地震资料分辨率低、砂体尖灭线难以落实的问题,利用正演技术、频谱分解技术对主力含油砂体尖灭线进行精细刻画。结合沉积相等地质资料,根据构造形态,储层预测,属性分析、砂体尖灭线范围,预测了含油砂体分布范围。最终明确了有利勘探区域,提出了评价井部署方案,为莫10区块下一步评价与开发方案部署奠定了基础。
[Abstract]:Block Mo 10 is located in the southern slope zone of Mosuowan uplift, which is characterized by abundant oil and gas resources, favorable structural location and favorable reservoir forming conditions, and is a favorable direction for oil and gas migration in the second member of the Sangonghe formation, where the formation of oil and gas is complex, and the formation of oil and gas in the second member of the Sangonghe formation is complicated. The lithology changes quickly and the boundary of oil-bearing sand layer is one of the key factors of successful exploration. Based on the 3D seismic data of Mo10 block, the seismic stratigraphic framework of Jurassic well is established by fine calibration of seismic geological horizon. The fine structural interpretation of Sangonghe formation is carried out. The whole structure of the work area is a monoclinal uplift from the south to the northwest of Shandong Province. The variation trend of stratigraphic fluctuation is relatively slow, and the thickness of the strata changes uniformly, so the distribution of a large number of faults has been re-established. The basic structural morphology of the study area has been carried out. In the southeast of the study area, a large rhinoid structural zone has been developed. The nose structure has been cut by two groups of faults, NE-SW and NW-SE, and the nose structure has been divided into several fault block traps. Six new structural traps have been discovered. The total area is 33km2, and the trap structure is described in detail. Based on the statistical analysis of drilling logging data, the logging response characteristics of downhole reservoir are analyzed, and the logging constraint inversion is carried out. Reservoir prediction and oil and gas detection are carried out by seismic attribute extraction, in which the precision of reservoir prediction is improved by curve reconstruction. In view of the low resolution of seismic data in this area, it is difficult to carry out the sand body tip out line. Using forward modeling technique and spectrum decomposition technique to depict the main oil-bearing sand body pinchout line. Combined with sedimentary equivalent geological data, according to structural shape, reservoir prediction, attribute analysis, range of sand body tip out line, The distribution range of oil-bearing sand bodies is predicted. Finally, the favorable exploration area is determined, and the evaluation well deployment scheme is put forward, which lays a foundation for the next evaluation and development plan deployment in Mo 10 Block.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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