摘要
根据研究区地质资料和生产数据,采用三维地质建模和数值模拟的方法,对研究区生产井进行了生产数据分析和历史拟合,研究了不同孔隙度、渗透率、储层厚度、井间距、排水速率、排采时间和井底流压条件下的储层压力扩展动态,分析各因素对压降传播的影响,研究认为:孔隙度偏小、渗透率偏大、储层厚度偏小、井间距偏小、排水速率偏大、排采时间偏长和井底流压偏低,更有利于压降漏斗在储层中的扩展。
According to the geological data and production data of the target area,the production data analysis and history fitting of the production wells in the target area were carried out by means of 3D geological modeling and numerical simulation.The reservoir pressure expansion dynamics under different porosity,permeability,reservoir thickness,well spacing,drainage rate,drainage time and bottomhole flow pressure were studied,and the impact of various factors on pressure drop propagation was analyzed.The result show that,when value of the porosity is low,the permeability is low,the reservoir thickness is thin,the spacing between the wells is narrow,the drainage rate is larger,the drainage time is longer and the bottom hole flow pressure is lower,the pressure-reduction funnel is more conducive to the propagate in the reservoir.
作者
刘玮
张遂安
彭川
白铁峰
李欢欢
饶庆
刘成
LIU Wei;ZHANG Sui-an;PENG Chuan;BAI Tie-feng;LI Huan-huan;RAO Qing;LIU Cheng(School of Petroleum Engineering,China University of Petroleum(Beijing),Beijing 102249,China;PetroChina Zhejiang Oil field Company Limited,Hangzhou 310023,China)
出处
《煤炭技术》
CAS
2019年第10期18-21,共4页
Coal Technology
基金
国家科技重大专项(2016ZX05067)
关键词
煤层气
三维地质建模
压降特征
数值模拟
coalbed methane
3D geological modeling
pressure drop characteristics
numerical simulation
作者简介
刘玮(1993-),陕西西安人,硕士研究生,研究方向:煤层气开发,电子信箱:752107931@qq.com.
