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当今时代,科技的发展日新月异,石油产业上也不断有新的技术产生,水平井不稳定试井越来越广泛的应用在油气藏的开采。要想更好的利用水平井来开发油气藏,就有必要弄懂清油气地下渗流特征及其压力动态,要达到这一目标,就要对水平井不稳定试井进行试井分析,并通过建立各种数学模型的方法来进行产量递减分析。本文在传统的研究方法的基础上,利用现代数学分析方法对水平井不稳定试井和产量递减进行了分析,得到井底压力动态表达式,并得到了油气地下渗流特征及其压力动态,划分了流动阶段,志在解决水平井负表皮问题。
In today’s era, the development of science and technology is changing with each passing day. New technologies are continuously produced in the petroleum industry. Horizontal well instability testing is increasingly used in the exploitation of oil and gas reservoirs. To make better use of horizontal wells to develop oil and gas reservoirs, it is necessary to understand the characteristics of underground oil and gas flow and its pressure dynamics. To achieve this goal, it is necessary to conduct well test analysis of horizontal well instability well test and pass Establish mathematical models for production decline analysis. Based on the traditional research methods, this paper analyzes the instability test of horizontal wells and the decline of production by using modern mathematical analysis method, obtains the dynamic expression of bottom hole pressure, and obtains the characteristics of underground oil and gas flow and its pressure dynamic, The flow stage, is intended to solve the horizontal well negative skin problems.