底水气藏高导流能力断层纵向水侵数值模拟研究  

Numercial Simulation Research of Vertical Water Flooding in a Bottom Water Gas Field with High Flow Conductivity Faults

作　　者：刘华林[1] 刘晓华[1] 邹春梅[1] 罗瑞兰[1] 苏云河[1] 郭辉[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《科学技术与工程》2018年第5期39-44,共6页Science Technology and Engineering

基　　金：中国石油股份公司深层油气重大专项(2014E-3203)资助

摘　　要：断层纵向水侵严重影响气藏地质储量动用甚至报废气井,开展断层水侵研究关系气藏开发成败,现有断层水侵研究主要集中在水侵数学方程建立与求解的理论层面及断层复杂形态描述等方面,商业数值模拟软件也仅能研究断层侧向封堵性质,而无法模拟其纵向开启对边底水的沟通作用。参考数值模拟中对压裂裂缝的处理理念,提出加密断层面两侧网格并赋予加密网格活跃属性的方法来实现对断层纵向水侵的数值模拟。实例显示,断层面两侧加密网格渗透率越大,水体沿着断层纵向推进速度越快,说明模拟断层纵向水侵的方法是有效可行的。针对断层水侵数值模拟依然存在的问题,创新性提出断层独立的网格粗化技术、断层独立的数值模拟技术、多功能集成的属性编辑技术三条技术展望。Faults＇ vertical water flooding has severe impact on the producing of a gas field＇s reserves,even scrapes a gas well,and the research of it determines whether a gas field can develop successfully or not. Previous studies on faults＇ water flooding mainly focus on water flooding mathematical equations＇ establishment and solution at theoretical level or the description of faults＇ complex shape,even commercial numerical simulation software can only simulate faults＇ lateral sealing characteristic but can＇t work on the simulation of vertical opening faults＇ impact on bottom water. Referring to the way of how a fractured fracture be handled in numerical simulation,a method that refines grids beside faults and the refined grids active properties are given to numerically simulate faults＇ vertical water flooding. Real case shows that the higher the permeability of refined grids beside faults,the quicker the speed of vertical water flooding along faults,so,it proves that the method is effective and workable. According to the problems that still exist in numerical simulation of faults＇ vertical water flooding,grids coarsening technology without faults,numerical simulation technology with independent faults and multifunctional integrated attributes editing technology these three items technology prospect are presented innovatively.

关 键 词：断层水侵 地质储量 数值模拟 侧向封堵 加密网格 

分 类 号：E312[军事—军事理论]