现代地质Issue(4)：817-823,7.
渗透回流模式白云石化作用对碳酸盐岩储层的影响
A Study of the Effect of the Dolomitization on the Carbonate Reservoir in the Seepage Reflux Mode
摘要
Abstract
Dolomitization has a significant influence on the carbonate rock reservoirs which contain oil and gas resources.Previous studies mainly focus on formation models of the dolomite,however,a fair description of its formation process is quite rare,needless to say a reasonable quantitative analysis for the transformation level of the reservoir by dolomitization.In this paper,a 1 -D model was set up based on the seepage reflux dolomitiza-tion model.Under the comprehensive advantage of TOUGHREACT,a multicomponent multiphase flow and sol-ute transport simulation software,the exploration on the transformation of the reservoir by dolomitization is fully re-alized.As the obvious results illustrate:when the concentrated sea water with high Mg/Ca ratio intrudes into the aquifer,calcite dissolution and dolomite precipitation are inevitable and actually happen in this case.The porosity and permeability are greater than the initial value.In 50,000 years,by force of gravity,seepage reflux dolomiti-zation can affect 50 m depth of the reservoir resulting in the formation of a certain scale dolomite reservoir.关键词
白云石化/渗透回流/储层物性/TOUGHREACTKey words
dolomitization/seepage reflux/physical properties of reservoir/TOUGHREACT分类
能源科技引用本文复制引用
杨冰,李佳琦,杨磊磊,许天福..渗透回流模式白云石化作用对碳酸盐岩储层的影响[J].现代地质,2014,(4):817-823,7.基金项目
中国石油天然气股份有限公司科学研究与技术开发项目（2011A -0207）；吉林大学研究生创新基金资助项目（2014026）。 （）
