霸县凹陷长丰镇构造带构造沉积特征及其控藏作用

发布时间：2018-05-20 21:58

本文选题：岩性油气藏 + 沉积微相　；参考：《东北石油大学》2017年硕士论文

【摘要】：长丰镇构造带位于霸县凹陷文安斜坡南部,是文安斜坡四个鼻状构造带之一。该构造带为东抬西倾继承性发育的斜坡,断裂不发育,为一弱构造活动区。而构造不发育也让该区成为整个斜坡区勘探程度最低的区带,钻井密度仅为0.1067/km2。目前只在S88井区、W96井区发现油田。受限于地震资料品质差、沉积储层研究不系统、油气成藏机理不明,近年来对该区微幅构造和岩性油藏的勘探进展不大。本文首先以层序地层学为指导,综合钻井、地震和分析化验等资料为基础,建立长丰镇地区统一的三级或四级等时地层格架。划分出6个三级层序,并在层序划分的基础上,在主要目的层东三段、沙一段划分出了四级层序;利用层序标定对15个层序界面精细构造解释,搭建层序格架。在高分辨率层序格架内分析层序界面、古地貌控砂机理对该区的沉积背景和物源方向进行解剖;运用地震属性分析、测井约束反演等技术,对各层序沉积相类型、沉积特征和砂体平面分布规律进行研究,预测有利储层分布相带和分布地区;结合该区成藏特征分析,指出下步勘探的油藏类型和岩性油藏发育区。
[Abstract]:Changfengzhen structural belt is located in the south of Wenan slope in Baxian sag, which is one of the four nose-like structural belts of Wenan slope. The tectonic belt is an inherited slope of eastward uplift and westward inclination. The fault is not developed, and it is a weak tectonic active area. The lack of structural development also makes the region the lowest exploration zone in the entire slope area, with a drilling density of only 0.1067 / km ~ (2). At present, only oil fields are found in well W96 in well S88. Limited by the poor quality of seismic data, the study of sedimentary reservoir is not systematic, the mechanism of oil and gas accumulation is not clear, and the exploration of microstructural and lithologic reservoirs in this area has not made much progress in recent years. In this paper, based on sequence stratigraphy and comprehensive drilling, seismic and analytical data, a unified third or fourth order isochronous stratigraphic framework is established in Changfeng town. On the basis of the division of the sequence, the third member of the main target layer and the first member of the main target layer are divided into four sequences, and the sequence framework is constructed by using sequence calibration to interpret the fine structure of the 15 sequence interfaces. In order to analyze the sequence interface in the high-resolution sequence framework, the paleogeomorphic sand control mechanism is used to dissect the sedimentary background and source direction of the area, and the types of each sequence sedimentary facies are analyzed by using seismic attribute analysis, logging constrained inversion and other techniques. The sedimentary characteristics and the horizontal distribution of sand bodies are studied to predict the favorable reservoir distribution facies belt and distribution area, and the reservoir types and lithologic reservoir development areas of the next exploration are pointed out in combination with the analysis of the reservoir forming characteristics in this area.
【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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