英台气藏产能评价技术研究

发布时间：2018-02-22 13:56

本文关键词： 英台气藏产能评价测试方法效果预测　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着油田开发的逐年深入,低品质资源逐渐开发,分析评价方法已不完全适用。英台气田是一个低品质资源,由四个区块组成,虽然都为火山岩储层,但分为火山岩熔岩储层和火山碎屑岩储层,并且各区块探井试气产能差异较大(0.2-18万方),试气过程中产少量凝析油,为此对于处于前期评价阶段的复杂非均质气藏,由于单纯的静态地质研究方法在有效储层识别、单井控制连通范围及形态描述方面精度不够,目前国内外广泛利用试井、试采动态资料在储层动态特征描述方面的优势,通过大量高精度试井压力资料的录取及精细分析研究,深入刻画描述了单井控制有效储层的参数及展布形态、单井控制动态储量大小等开发关键参数,以此对气井开发生产动态进行预测,并作为指导气田开发规划与开发主体技术选择的依据。对英台气藏通过相图判别法及经验统计法进行相态特征确定、多参数分析产能影响因素分析、气井试井及产能评价方法研究、气井动态分析综合评价及产能预测等方法对该地区形成了一套可行的分析评价方法。针对气田火山岩气藏的复杂性,以及吉林油田同类含凝析油气藏的独特性,通过分析评价深化认识火山岩储层的连通性、单井控制范围、气井产能提高的潜力、底水锥进的影响、水平井效果评价等,实现深层天然气的安全、高效开发意义重大。
[Abstract]:With the deepening of oilfield development and the gradual development of low-quality resources, the analysis and evaluation method is not fully applicable. Yingtai gas field is a low-quality resource, consisting of four blocks, although all of them are volcanic reservoirs. However, it can be divided into volcanic lava reservoir and pyroclastic reservoir, and the gas test productivity of exploration wells in each block is quite different from 0.2-18 million square meters, and a small amount of condensate oil is produced in the process of gas testing. Therefore, for the complex heterogeneous gas reservoirs which are in the early stage of evaluation, Because the static geological research method is not accurate enough in effective reservoir identification, single well control connectivity and shape description, the advantages of well test and production test dynamic data in reservoir dynamic feature description are widely used at home and abroad. By taking and analyzing a large number of high precision well test pressure data, the parameters and distribution of effective reservoir controlled by single well and the key parameters of development such as the size of dynamic reserves controlled by single well are described in depth. Based on the prediction of gas well development and production performance, and as the basis for guiding gas field development planning and development main technology selection, the phase behavior characteristics of Yingtai gas reservoir are determined by phase diagram discrimination and empirical statistics. Multi-parameter analysis of productivity factors analysis, well testing and productivity evaluation method research, The comprehensive evaluation of gas well performance analysis and productivity prediction have formed a set of feasible analysis and evaluation methods for this area. In view of the complexity of volcanic gas reservoirs in gas fields and the uniqueness of similar condensate reservoirs in Jilin Oilfield, By analyzing and evaluating the connectivity of volcanic reservoir, the control range of single well, the potentiality of gas well productivity improvement, the influence of bottom water coning, and the evaluation of horizontal well effect, it is of great significance to realize the safety and high efficiency development of deep gas.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE155

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