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靖边气田优化布井技术是针对靖边气田下古气藏埋藏深、含气面积大、侵蚀沟谷分布复杂、气层薄、非均质性强、单井产量差距大等地质特点而开展的集地震、地质、测井和气藏工程等多学科为一体的综合布井技术，其核心思想是以多学科分专题研究为基础，以各学科分支点为切入点，最终达到微观和宏观结合、动态和静态结合及多学科综合优化布井的目的。地震研究以识别侵蚀沟谷分布特征和储层厚度为指导思想，为井位优化奠定了良好的物质基础；地质研究紧紧抓住下古生界气藏岩溶型储层的形成机理，成功地确定出气藏主控因素，筛选出天然气高产富集区，为优化布井区的选择指明了方向；气藏工程以气井生产动态资料为主，紧密结合压力系统等理论知识，准确地分析出储层流体中高渗流连通区块，为各区块井距的设计和井位优化提供了动态技术保障；文章最后以各学科研究成果为基础，综合天然气高产富集区和储层流体连通区，优化布井有利区，部署开发井位。1999—2000年产能建设实施证明，井位优选技术思路和方法正确，经济效益巨大。

Optimizing Well Spacing Technique Used for Jingbian Gas Field and Its Application in Productivity Construction

??The optimizing well spacing technique used for Jingbian gas field is a comprehensive well spacing technique of applying multiple disciplines as seismics,geology,well logging and gas reservoir engineering in light of these geological characteristics of Low Paleozoic gas reservoir,such as large burial depth,wide gas-bearing-area,complicated erosional groove distribution,thin gas-bearing layer,strong heterogeneity greatly changeful individual well production,etc.Its core,videa is to take the monographic studies of multiple disciplines as the basis and the discipline branching point as the cutting-in point so as to attain the goal of optimizing the well spacing at last through the combination of microcosm with macrocosm,the combination of dynamic behavior with static behavior and the synthesis of multiple disciplines.In the paper,it is pointed out that the erosonal groove distribution characteristics and reservoir thickness may be identified by seismic research,thus laying a material foundation for optimizing well site;in light of the geological research on the formation mechanism of the karstic reservoir beds in Lower Paleozoic gas reservoirs,the major control factors of gas reservoir formation were successfully determined and the gas-richening areas were found out,thus pointing the way out for selecting optimal well spacing regions;in gas reservoir engineering research,mainly based on gas well producing performance data,the high-permeability fluid connecting areas were accurately divided up by closely combining with the pressure system theory,thus providing necessary dynamic data for designing well spacing and optimizing well site in various regions;and,on the basis of the research results of various disciplines,the beneficial well spacing regions and development well site deployment were optimized finally by synthetically considering the gas-richening areas and reservoir fluid connecting areas.Through productivity construction implemented in 1999??2000,it was proved that the technical idea and method of optimizing well site are correct and have great economic returns.