延安气田上古生界致密砂岩气藏井控规模研究  

The study focuses on the well control scale of the Upper Paleozoic tight sandstone gas reservoir in Yan'an Gas Field.

作　　者：雷开宇 高小平[1] 李云[1] 马云贵 吕敏 刘洋洋 Lei Kaiyu;Gao Xiaoping;Li Yun;Ma Yungui;Lv Min;Liu Yangyang(Gas Field Company of Shaanxi Yanchang Petroleum(Group)Co.LTD,Yan’an 716000)

机构地区：[1]陕西延长石油(集团)有限责任公司气田公司,陕西延安716000

出　　处：《石化技术》2024年第4期242-244,共3页Petrochemical Industry Technology

摘　　要：延安低渗致密砂岩气田具有气藏地质状况复杂,储层物性差,非均质性强,单井控制范围小、储量动用程度低、开发难度大等特点。延安气田延145-延气2-延128井区作为最早投产开发的区域,经过2012年以来的陆续开发,气井目前普遍出现产量、压力下降快等问题,为了尽可能延长气田稳产期,达到经济高效开发的目的,明确气井产能和压力变化规律、动态储量、控制规模等开发动态,对于延安气田后续开发调整方案的制定及气田持续稳产高效开发至关重要。基于生产动态数据,采用气藏工程方法,对研究区井控储量及控制规模进行了系统评价,在此基础上对气田下一步开发调整方式进行了综合建议。Yan'an gasfield has the characteristics of complex geological conditions,poor reservoir physical properties,strong heterogeneity,small single well control range,low reserve production degree,and difficult development.As the earliest development area,after continuous development since 2012,well production and pressure decline rapidly in Yan-145-yanqi-2-yan-128 block.In order to extend the stable production period of the gas field as far as possible and achieve the purpose of economic and efficient development,the gas well productivity and pressure changes are determined Development trends such as regularity,dynamic reserves,control scale which are very important for the development of Yan'an gasfield.In this paper,based on the production dynamic data,combined with a variety of gas reservoir engineering methods,a comprehensive and in-depth analysis of well control scale in the study area of Yan'an gas field is carried out.On this basis,comprehensive suggestions are made for the next development adjustment mode of the gasfield.

关 键 词：致密砂岩气 动态储量 泄气范围 井控规模 

分 类 号：TE37[石油与天然气工程—油气田开发工程]