AD地区沙河子组致密砂砾岩气测井评价方法研究

发布时间：2018-06-17 01:24

本文选题：致密砂砾岩气 + 测井评价　；参考：《东北石油大学》2017年硕士论文

【摘要】：AD地区沙河子组致密砂砾岩气储层位于营城组火山岩下部,随着该地区某井获得20.8×104m3的高产工业气流,展现了良好的勘探前景,使其成为储量接替重要且现实的领域,但沙河子组以往为兼探目标,没有开展系统的致密气测井评价研究,为了满足储量提交、单井解释及工程评价的需要,亟需开展技术攻关,建立一套AD地区沙河子组致密砂砾岩气储层测井评价方法。AD地区致密砂砾岩气测井评价主要存在以下技术难题,一是岩石类型多、成分较复杂,测井响应特征差异较小,岩性准确识别难;二是储层致密,孔隙结构较复杂,非均质性也较强,储层参数准确计算困难;三是储层烃源岩测井评价难;四是致密砂砾岩储层岩石力学计算难。因此,开展致密砂砾岩气储层的“七性”参数解释方法,将对今后非常规天然气储层评价具有较大大指导意义。本论文针对上述技术问题,系统开展AD地区沙河子组致密砂砾岩气储层“七性”测井评价研究。研究了沙河子储层不同岩性测井响应特征,建立了常规测井资料和成像测井资料的岩性识别方法;根据核磁、常规、压汞资料,开展储层孔隙结构及导电机理研究,建立储层孔隙度、渗透率、饱和度和泥质含量参数解释模型;根据声波、核磁、常规测井等资料,建立了不同类型储层的流体识别图版;分析了烃源岩测井响应特征,建立了TOC,Ro测井计算方法;依据纵横波测井特征,建立了弹性参数、岩石脆性指数、地应力大小及方向测井评价方法,实现了工程品质参数评价。通过应用形成的一套AD地区沙河子组致密气储层测井综合评价技术,在生产中见到了较好的效果,为勘探部署、储量提交和工程评价提供技术支撑。
[Abstract]:The tight sand gravel gas reservoir of Shahezi formation in AD area is located in the lower part of volcanic rock of Yingcheng formation. With a well of 20. 8 脳 104m3 high industrial airflow in this area, it shows a good prospect of exploration and makes it an important and realistic field of reserve replacement. However, the Shahezi formation has not carried out systematic research on the evaluation of tight gas logging in the past because it was also a target of exploration. In order to meet the needs of reserve submission, single well interpretation and engineering evaluation, it is urgent to carry out technical research. To establish a set of logging evaluation method for tight sand gravel gas reservoir in Shahezi formation, AD area. There are several technical problems in logging evaluation of dense sand gravel gas reservoir in AD area. Firstly, there are many types of rocks, complex components and little difference in logging response characteristics. It is difficult to identify the lithology accurately; second, the reservoir is compact, the pore structure is complex, the heterogeneity is also strong, the reservoir parameters are difficult to calculate accurately; the third is the logging evaluation of reservoir source rock; the fourth is the difficulty of rock mechanics calculation of tight sand and gravel reservoir. Therefore, it is of great guiding significance for the evaluation of unconventional natural gas reservoirs to develop the "seven properties" parameter interpretation method for tight sandstone and gravel gas reservoirs. In view of the above technical problems, this paper systematically studies the evaluation of the "seven properties" of the tight sand gravel gas reservoir in the Shahezi formation in AD area. The response characteristics of different lithologic logging in Shahezi reservoir are studied, the lithology identification method of conventional logging data and imaging logging data is established, the pore structure and conductive mechanism of reservoir are studied according to nuclear magnetic, conventional and mercury injection data. The interpretation model of reservoir porosity, permeability, saturation and muddy content parameters is established. Based on the data of acoustic wave, nuclear magnetic field and conventional logging, the fluid identification charts of different types of reservoirs are established. The logging response characteristics of source rock are analyzed. According to the characteristics of P-S wave logging, the evaluation methods of elastic parameters, rock brittleness index, in-situ stress and direction logging are established, and the evaluation of engineering quality parameters is realized. Through the application of a set of comprehensive evaluation techniques for tight gas reservoir of Shahezi formation in AD area, good results are found in production, which provides technical support for exploration deployment, reserve submission and engineering evaluation.
【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;P631.81

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