P气田气井产能及合理配产研究

发布时间：2018-04-15 05:03

本文选题：产能方程 + 修正等时试井　；参考：《西南石油大学》2015年硕士论文

【摘要】：作为我国“川气东输”的主要供气源,P气田位于我国川东北地区,气田的开发建设对我国经济发展、能源的安全、能源的结构调整、自然环境的保护、居民生活保障等具有十分显著的意义。P气田具有高压、高产、埋藏深等特点,其生产动态规律极其复杂,而产能评价又是整个气藏生产动态描述的重要内容。气井产量的过大或者过小都会降低开发效益,因此为保证气田稳定长期生产,正确合理地对其进行产能评价显得尤为重要。本文主要以P气田生产动态资料为基础,从产能评价和合理配产两个方面进行研究,主要研究内容如下：(1)对试气和开发过程中的气井回压试井、修正等时试井等资料进行二项式和指数式分析,对异常测试资料进行校正处理,并以此为基础建立适合P气田的气井产能预测一点法经验公式。(2)以当前生产动态资料为基础,运用稳定渗流理论、稳定点产能分析方法、动态产能评价方法、新建一点法和地层产水影响的产能预测法等方法对气井产能进行预测。(3)利用无阻流量经验法、携液临界流量法、采气指示曲线法、节点分析法、最优化配产法、数值模拟法等配产方法,依据当前产能预测结果对气井进行配产研究,在合理高产的需求下,确定气井的合理配产结果。本文以生产动态资料和产能测试资料分析为基础,采用多种方法较准确的预测了气井当前产能大小和气井合理配产产量,研究成果为气田持续稳产、高产具有一定的参考意义。
[Abstract]:As the main source of gas supply in China, the gas supply gas field is located in northeast Sichuan. The development and construction of gas field is beneficial to our country's economic development, energy security, energy structure adjustment and natural environment protection.P gas field has the characteristics of high pressure, high yield and deep burial, its production dynamic law is extremely complex, and productivity evaluation is the important content of the whole gas reservoir production performance description.Too large or too small production of gas wells will reduce the development benefit, so it is very important to evaluate the production capacity correctly and reasonably in order to ensure the stable long-term production of gas fields.Based on the production performance data of P gas field, this paper mainly studies on productivity evaluation and rational production allocation. The main research contents are as follows: 1) back pressure test of gas well during gas test and development.The modified isochronous well test data are analyzed by binomial and exponential formulas, and the abnormal test data are corrected and processed. Based on this, the empirical formula of one-point method for predicting gas well productivity in P gas field is established, which is based on the current production performance data.Using the theory of steady seepage, the method of productivity analysis of stable point, the method of dynamic productivity evaluation, the method of establishing a new point and the method of predicting the productivity of gas wells affected by formation water production, etc.) using the experience method of unobstructed flow, the method of critical flow rate of carrying liquid, etc.According to the current productivity prediction results, the production distribution of gas wells is studied, and the reasonable production distribution results of gas wells are determined under the reasonable demand of high production under the condition of reasonable and high production demand, such as gas recovery indicator curve method, node analysis method, optimal production allocation method, numerical simulation method, and so on.Based on the analysis of production performance data and productivity test data, this paper uses various methods to accurately predict the current production capacity of gas wells and the reasonable production ratio of gas wells. The research results are of certain reference significance for the sustained and stable production of gas fields.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE328

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