试井资料在徐深气田开发中的应用分析

发布时间：2018-05-06 14:21

本文选题：试井解释资料 + 井温压力　；参考：《东北石油大学》2015年硕士论文

【摘要】：伴随着我国经济持续发展,能源战略安全形势日益严峻,能源需求越来越大,供需矛盾日益增加。天然气的开发利用愈加受到重视,因此对针对天然气田勘探与开发的力度也不断加大,由于近几年深层气井的压裂、固井等钻采技术都取得了较大突破,使得近年来大庆油田产气量也逐年增加,仅2006年就已达24.4亿立方米。而大庆油田“稳四上五”目标的提出,更是使得天然气勘探开发已经呈现出跨度式增长态势。但是随着气田的开发规模越来越大,气田的地质条件和动态生产情况也日趋复杂,相关的动态监测及其分析工作也就愈发重要。如何更加有效的开展气田动态监测及解释评价研究工作是目前的首要任务。例如在气藏生产管理中,重点开展气田动态监测工作,通过对有关资料进行收集、分析,满足资料录取和动态分析需要,为气田合理开发提供有利的分析依据,从而达到正确认识、开发气藏的目的,在压力恢复试井、建立和求解不稳定渗流数学模型、气井合理关井时间的确定方法等方面的了解。试井是气田开发动态监测中的重要技术手段之一,试井工程师目前最亟待解决的问题就是,在面对越来越复杂的地质条件下,通过分析利用试井资料发现并解决气田开发中遇到的问题。反之亦然,如何利用试井资料诊断气田开发中的矛盾也成为了检验试井资料的有效手段。所以,严峻的开发形势给试井技术带来了挑战的同时也带来了发展机遇,试井技术在不断解决开发矛盾的同时也在逐步的发展和完善。本文总结了试井技术的发展过程,并以大庆油田徐深气田为例,阐述了试井解释资料在气田动态开发过程中的实际应用,具体分析了不同试井资料在气田开发过程中相应的指导作用。同时在气井二项式产能方程基础上,建立了能够直接描述流压与产量关系的、且能计算地层压力的广义产能方程模型。并通过与常规的作图法和最小二乘法对比验证此方法是可靠的。
[Abstract]:With the sustainable development of our economy, the security situation of energy strategy is becoming more and more severe, the energy demand is increasing, and the contradiction between supply and demand is increasing day by day. The exploitation and utilization of natural gas have been paid more attention to, so the exploration and development of natural gas fields have been increasingly strengthened. Due to the fracturing of deep gas wells in recent years, drilling and production techniques such as cementing have made great breakthroughs. In recent years, Daqing Oilfield gas production has increased year by year, in 2006 alone has reached 2.44 billion cubic meters. However, the target of "stable four and top five" in Daqing Oilfield has made the exploration and development of natural gas become more and more spanned. However, with the development of gas field becoming larger and larger, the geological conditions and dynamic production of gas field are becoming more and more complicated, and the related dynamic monitoring and analysis work is becoming more and more important. How to more effectively carry out the research work of gas field dynamic monitoring and interpretation evaluation is the primary task at present. For example, in the production management of gas reservoirs, it is important to carry out the monitoring work of gas field performance. By collecting and analyzing the relevant data, we can meet the needs of data acquisition and dynamic analysis, and provide a favorable analysis basis for the rational development of the gas field. In order to realize the correct understanding and develop the gas reservoir, it is necessary to establish and solve the mathematical model of unstable percolation, to establish and solve the mathematical model of unstable percolation, and to determine the reasonable shut-in time of gas well. Well testing is one of the important technical means in monitoring the development performance of gas field. The most urgent problem to be solved by well test engineers is that, in the face of more and more complicated geological conditions, The problems encountered in gas field development are found and solved through analysis and utilization of well test data. Vice versa, how to use well test data to diagnose the contradiction in gas field development has become an effective means to test well test data. Therefore, the severe development situation not only brings challenges to well testing technology, but also brings opportunities for development. Well test technology is developing and perfecting step by step while solving the development contradiction constantly. This paper summarizes the development process of well test technology, and takes Xushen gas field in Daqing Oilfield as an example to expound the practical application of well test interpretation data in the process of dynamic development of gas field. The guiding role of different well test data in gas field development is analyzed in detail. On the basis of binomial productivity equation of gas well, a generalized productivity equation model which can directly describe the relationship between flow pressure and production rate and can calculate formation pressure is established. Compared with the conventional drawing method and the least square method, the method is proved to be reliable.
【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】：TE373

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