芳121区块扶余油层储层地震预测

发布时间：2018-05-22 19:38

本文选题：扶余油层 + 地震属性　；参考：《东北石油大学》2017年硕士论文

【摘要】：松辽盆地北部的非常规油气资源,尤其是致密油资源储量巨大,其中渗透率小于2mD的扶杨油层比重较大,开发前景广阔,但实际有效控制储量相对较低,为了实现探明储量向控制储量的升级,引入水平井用以提高产量。本文以地震技术为主要手段对研究区开展地震储层预测,划分水平井部署有利区域,为下一步部井提供可靠地质依据。本文首先在前人研究的基础上分析研究区构造、储层、沉积特征,落实研究区地质背景;其次利用地震资料、测井资料、钻井资料,通过频谱分析、地震属性对比分析等技术筛选有利层位,确定储层评价目的层;后通过精细层位标定、地震地质统层、断层刻画以及高精速度场的建立,完成对研究区的层位标定、精细构造解释,精细构造成图,分析研究区构造特征;最后以储层地震地质特征分析为基础,利用多属性交汇技术、地震属性分析技术及储层反演定量描述进行地震属性定性预测,综合评价储层,划分有利区。最终分选出有利层位及次级有利层位,准确刻画研究区断裂发育的小断层规律,落实研究区内的构造成图的精度,完成地震属性优选,确定储层预测属性类型。结合研究区资料分类、地震反演预测砂体将研究区进行三级分类,实现研究区的地震储层预测,达到下一步水平井的部署提供技术支撑的目的。
[Abstract]:In the north of Songliao Basin, the unconventional oil and gas resources, especially the dense oil resources, have huge reserves, among which the Fuyang reservoir with permeability less than 2mD has a large proportion and broad development prospects, but the actual effective control reserves are relatively low. In order to upgrade proven reserves to controlled reserves, horizontal wells are introduced to increase production. In this paper, seismic reservoir prediction is carried out with seismic technology as the main means, and favorable areas for horizontal well deployment are divided, which provides reliable geological basis for the next step. In this paper, first of all, based on the previous studies, the structure, reservoir and sedimentary characteristics of the study area are analyzed, and the geological background of the study area is carried out. Secondly, using seismic data, logging data, drilling data and spectrum analysis, Seismic attribute contrast analysis and other techniques are used to screen favorable horizons and determine the target layers for reservoir evaluation, and then through fine layer calibration, seismic geological strata, fault characterization and the establishment of high precision velocity field, the horizon calibration of the study area is completed. Fine structure interpretation, fine structure mapping, analysis of the structural characteristics of the study area; finally, based on the analysis of the seismic geological characteristics of the reservoir, the use of multi-attribute intersection technology, The seismic attribute analysis technique and the reservoir inversion quantitative description are used to predict the seismic attribute qualitatively, evaluate the reservoir synthetically and divide the favorable area. Finally, the favorable and secondary favorable layers are sorted out, the law of small faults developed in the study area is accurately described, the accuracy of structural mapping in the study area is carried out, the seismic attributes are optimized, and the types of reservoir prediction attributes are determined. Combined with the classification of the data of the study area, seismic inversion prediction sand bodies will be classified into three levels in order to achieve seismic reservoir prediction in the study area, and achieve the purpose of providing technical support for the deployment of horizontal wells in the next step.
【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;P631.4;TE31

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