致密砂岩气藏稳产后期动用效果评价与动用潜力分析:以子洲气田山2气藏为例  

Evaluation of Production Effect and Analysis of Production Potential of Tight Sandstone Gas Reservoir in the Late Stage of Stable Production:A Case Study of Shan 2 Gas Reservoir,Zizhou Gas Field

作　　者：樊志强[1] 雷小兰[1] 李浩[1] 李博远 代金友[2] 陈代欣 赵世佳 FAN Zhi-qiang;LEI Xiao-lan;LI Hao;LI Bo-yuan;DAI Jin-you;CHEN Dai-xin;ZHAO Shi-jia(The Second Gas Production Plant of PetroChina Changqing Oilfield Company,Yulin 719000,China;College of Petroleum Engineering,China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油长庆油田分公司第二采气厂,榆林719000 [2]中国石油大学(北京)石油工程学院,北京102249

出　　处：《科学技术与工程》2024年第21期8917-8924,共8页Science Technology and Engineering

基　　金：国家科技重大专项-油气重大专项(2016ZX05047-005);国家科技重大专项(2017ZX05035004)。

摘　　要：以子洲气田山2气藏为例,利用钻井及生产动态资料,通过对地质储量、动储量、累产气、累产水和动静储量比的计算与分析,采用综合评判指数法和类比法,详细评价了山2致密砂岩气藏动用效果和动用潜力。结果表明:山2气藏平面动用严重不均衡。7个井区中,主砂体带中部的榆30井区动用效果最好,属Ⅰ类动用区;主砂体带南部的洲3和北部榆81井区动用效果中等,为Ⅱ类动用区;主砂体周边的榆69、榆48、麒麟沟和榆29井区动用效果差,属Ⅲ类动用区。初步预测山2气藏整体动用潜力为198.1×10^(8) m^(3)。其中,Ⅲ类区的动用潜力为174.7×10^(8) m^(3),占88.2%,是山2气藏后续挖潜重点。Taking Shan 2 gas reservoir of Zizhou gas field as an example,the production effect and potential of Shan 2 tight sandstone gas reservoir were evaluated in detail by using the calculation and analysis of geological reserves,dynamic reserves,cumulative gas production,cumulative water production and dynamic reserves to static reserves ratio.The results show that the plane production of Shan 2 gas reservoir is seriously unbalanced.Among the 7 well areas,Yu 30 well area in the middle of the main sand body zone has the best production effect,which belongs to Class I production areas.Zhou 3 well area in the south of the main sand body and Yu 81 well area in the north of the main sand body have medium production effects,which belongs to Class II production areas.The production effects of Yu 69,Yu 48,Qilin Gou and Yu 29 wells around the main sand body are poor,and they belong to Class III production areas.It is preliminarily predicted that the overall production potential of Shan 2 gas reservoir is 198.1×10^(8) m^(3).Among them,the production potential of Class III areas is 174.7×10^(8) m^(3),accounting for 88.2%,which is the focus of the follow-up potential exploration of Shan 2 gas reservoir.

关 键 词：致密砂岩气藏 稳产后期 动用效果 动用潜力 子洲气田山2气藏 

分 类 号：TE328[石油与天然气工程—油气田开发工程]