建南气田长二、飞三气藏合采可行性研究

发布时间：2018-03-20 10:31

本文选题：碳酸盐岩　切入点：多层合采　出处：《重庆科技学院》2017年硕士论文　论文类型：学位论文

【摘要】：建南气田位于四川盆地东部川东褶皱带的石柱复向斜中部,主要产气层为飞三段和长二段。建南气田长二、飞三气藏属于低孔、低渗、常压、中—深层碳酸盐岩气藏。建南气田长二和飞三气藏经多年be开采现已出现采出程度低,采气速度慢、建井和采气成本高等特点,研究建南气田长二和飞三气藏合采技术界限,优选合采气井,优化合采井的工作制度,为加快建南气田采气速度,降低采气成本提供技术支持。本文主要通过已有资料的对比、气藏工程研究、气井数值模拟研究和类比调研分析等。完成了如下研究内容:(1)收集整理长二、飞三气藏静动态资料对比长二、飞三气藏的构造特征、储层特征、流体性质、目前地层压力,为建南气田长二、飞三气藏合采研究打下基础。(2)长二和飞三气藏合采技术界限评价。通过对长二和飞三气藏合采层间干扰的评价和在储层物性、渗流特征差异下,多层合采与分层开采的效果的对比确定一个适合于气层合采的定量的参数范围。(3)根据长二和飞三气藏合采技术界限研究结合实际生产资料优选出适合长二和飞三气藏合采的气井。(4)在优选出合采井的基础上建立合采模型对所选出的气井进行合理配产。
[Abstract]:The Jiannan gas field is located in the middle of the Shizhu compound slope of the eastern Sichuan fold belt in the eastern part of Sichuan Basin, and the main gas producing beds are the third member of the Fei3 and the second member of the Chang 2. The gas reservoirs of Changer 2 and Fei3 are low porosity, low permeability and normal pressure in Jiannan gas field. Changer and Fei3 gas reservoirs in Jiannan gas field have been developed for many years with the characteristics of low production degree, slow gas recovery rate, high well building and gas production cost, etc. The technical limits of combined production of Changer and Fei-3 gas reservoirs in Jiannan gas field are studied. In order to speed up the gas recovery rate and reduce the gas production cost in Jiannan gas field, this paper provides technical support for the optimization of gas production wells and the working system of combined production wells. This paper mainly through the comparison of existing data, gas reservoir engineering research, Numerical simulation of gas wells and analogical investigation and analysis, etc. The following research contents have been completed: 1) collecting and arranging static and dynamic data of Chang2, Fei3 gas reservoirs, contrasting Chang2, Fei3 gas reservoirs, structural characteristics, reservoir characteristics, fluid properties, current formation pressure, etc. In order to lay a foundation for the study of combined production of Chang2 and Fei3 gas reservoirs in Jiannan gas field, the technical limits of combined production of Changer and Fei3 gas reservoirs are evaluated. Through the evaluation of interlayer interference between the combined production zones of Changer and Fei-3 gas reservoirs and under the difference of reservoir physical properties and percolation characteristics, Comparing the effect of multilayer combined production and stratified production to determine a quantitative parameter range of gas reservoir combined production.) according to the study of the technical limit of combined production of Changer and Fei3 gas reservoirs, combining with the actual data of production, select the suitable for Changer and Fei3 gas reservoirs. Based on the optimal selection of combined production wells, a combined production model is established for the reasonable production of selected gas wells.
【学位授予单位】：重庆科技学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE37

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