基于物质平衡方程的CO_(2)理论构造埋存量计算新方法  

A New Method for Calculating the Theoretical Tectonic CO_(2)Storage Volume Based on Material Balance Equation

作　　者：崔传智[1] 李安慧 吴忠维 马思源 邱小华 刘敏[3] Cui Chuanzhi;Li Anhui;Wu Zhongwei;Ma Siyuan;Qiu Xiaohua;Liu Min(China University of Petroleum(East China),Qingdao,Shandong 266580,China;China National Offshore Oil(China)Co.,Ltd,Tianjin Company,Tianjin 300452,China;PetroChina Changqing Oilfield Company,Xi′an,Shaanxi 710000,China)

机构地区：[1]中国石油大学(华东),山东青岛266580 [2]中海石油(中国)有限公司天津分公司,天津300452 [3]中国石油长庆油田分公司,陕西西安710000

出　　处：《特种油气藏》2023年第1期74-78,共5页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金“致密油藏多段压裂水平井时空耦合流动模拟及参数优化法”(51974343);青岛市博士后应用研究项目“致密油藏体积压裂支撑剂分布模拟与参数优化研究”(qdyy20200084)。

摘　　要：为进一步提高盐水层中CO_(2)埋存潜力评价的准确性,基于物质平衡方法,建立CO_(2)构造埋存过程的物质平衡方程,在对CO_(2)可埋存地下体积准确计算的基础上,提出了一种新的CO_(2)理论构造埋存量计算方法。结果表明:新方法计算的CO_(2)理论构造埋存量,与面积法、容积法相比,误差更小,仅约为10%;新方法可同时预测CO_(2)增压埋存条件下和保压埋存条件下的理论构造埋存量,且随着注入时间或注采比的增加,CO_(2)理论构造埋存量和地层压力均呈现不断增加的趋势。该方法对CO_(2)构造埋存量研究及CO_(2)注入量实时动态控制具有重要意义。To further improve the evaluation accuracy of CO_(2)storage potential in saline layer,a new method for calculating the theoretical tectonic CO_(2)storage volume was proposed based on the material balance equation of CO_(2)tectonic storage process and the accurate calculation of underground volume of CO_(2)storage.As found in the results,the error of theoretical tectonic CO_(2)storage volume calculated by the new method was smaller than that of area method and volume method,which was only about 10%;the new method can predict the theoretical tectonic storage volume under both CO_(2)pressurized and pressure-retaining underground storage conditions;both theoretical tectonic CO_(2)storage volume and formation pressure showed a trend of increasing with the increase of injection time or injection-production ratio.The new method is of great significance to the study of CO_(2)tectonic storage and real-time dynamic control.

关 键 词：CO_(2)构造埋存 盐水层 理论构造埋存量 物质平衡 

分 类 号：TE155[石油与天然气工程—油气勘探]