气藏型地下储气库的库存量曲线特征与达容规律  

Curve characteristics and rules of the storage capacity establishment of a reservoir-type underground gas storage(UGS)

作　　者：王东旭[1] 马小明[2] 伍勇[1] 张顺慈 张建国[1] 马东山[4] 游良容[1] 杨艳[2] 马东博[5] 

机构地区：[1]中国石油长庆油田公司勘探开发研究院 [2]中国石油大港油田公司勘探开发研究院 [3]中国石油西南油气田公司华油凯源北新分公司 [4]中国石油天然气管道工程有限公司天津分公司 [5]中国石油大港油田公司第四采油厂

出　　处：《天然气工业》2015年第1期115-119,共5页Natural Gas Industry

摘　　要：中国石油天然气集团公司2010年启动的第二批地下储气库正在陆续建成投产,地下储气库开始进入达容阶段,需要提前了解和掌握地下储气库库容量的达容规律和达容特征。为此,论述了气库达容物质平衡原理、气库达容库存量曲线特征和气库达容的普遍性规律,以气藏物质平衡理论为基础,阐述了地下储气库的库容参数与压力的对应逻辑关系,建立了库容量计算方程,定义了库容参数,以国内第一批地下储气库即大港储气库群的扩容达容生产实践为依据,建立了地下储气库逐步扩容达容的库存量曲线的基本模式,从技术上论述了库存量曲线的物理意义、曲线特征、关键点参数,并介绍了应用地下储气库生产动态资料绘制库存量曲线的方法,以气库物质平衡理论结合地下储气库扩容达容的库存量曲线特征,系统总结了地下储气库由开始扩容到多周期达容的普遍规律,为指导和掌握地下储气库的扩容达容规律提供了理论知识与技术方法。Along with the completion and successively being put into production of CNPC＇s second batch of underground gas storage （UGS） tanks initiated in 2010, the follow up evaluation and expansion of the storage capacity reaching the design reference has become a realistic issue. Therefore, we need a better understanding of the corresponding rules and characteristics. First, we explained the involved mass balance principle, curve features, and general rules. On this basis, we discussed the logic relationship between the storage capacity parameters and pressures, then built the calculation formula of storage capacity and defined the relevant parameters. Taking the Tianjin Dagang UGS group （the first batch of UGS tanks） as an example, we established the basic mode of storage capacity curves reflecting the expansion and reaching the design reference and discussed from the technical perspective the physical meaning of curves, curve characteristics and key parameters. In addition, we also introduced a method of drawing the storage capacity curves by use of the dynamic performance data of UGS and summarized the general rules of UGS from the beginning of the expansion to multi-cycle of the capacity establishment. This study provides theoretical knowledge and technical support for the UGS storage capacity expansion and establishment.

关 键 词：地下储气库 大港储气库群 气藏型地下储气库 库容量 库存量曲线 达容规律 物质平衡原理 

分 类 号：TE972.2[石油与天然气工程—石油机械设备]