非均相复合驱数值模拟方法研究与应用

doi:10.11743/ogg20160419

石油与天然气地质 ›› 2016, Vol. 37 ›› Issue (4): 606-611.doi: 10.11743/ogg20160419

非均相复合驱数值模拟方法研究与应用

曹伟东¹, 戴涛¹, 于金彪¹, 鲁统超², 程爱杰², 席开华²

1. 中国石化胜利油田分公司勘探开发研究院, 山东东营 257015;
2. 山东大学数学学院, 山东济南 250100

收稿日期:2015-10-21 修回日期:2016-03-23 出版日期:2016-08-08 发布日期:2016-09-06
作者简介:曹伟东(1983-),男,博士研究生、高级工程师,油藏数值模拟。E-mail:caoweidong085.slyt@sinopec.com。
基金资助:
国家科技重大专项（2011ZX05011-004，2016ZX05011003）。

A numerical simulation method of heterogeneous combination flooding

Cao Weidong¹, Dai Tao¹, Yu Jinbiao¹, Lu Tongchao², Cheng Aijie², Xi Kaihua²

1. Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying, Shandong 257015, China;
2. School of Mathematics, Shandong University, Jinan, Shandong 250100, China

Received:2015-10-21 Revised:2016-03-23 Online:2016-08-08 Published:2016-09-06

摘要/Abstract

摘要： 非均相复合驱是一项应用于聚合物驱后油藏进一步提高采收率的化学驱方法，其主要的驱替剂为预交联凝胶颗粒B-PPG、聚合物和表面活性剂。从室内实验结果看，B-PPG颗粒的物理化学性质及驱油特征与聚合物有着明显的区别。传统的化学驱数学模型与应用软件无法准确描述其驱油机理。为深入研究非均相复合驱体系的驱油机理，基于室内实验的认识，引入了颗粒通过因子的概念，描述B-PPG颗粒的非连续性运移特征，并修正了残余阻力系数的数学表征方式，建立了新的数学模型，进行了快速求解算法研究和软件实现。算例测试表明，新的数学模型较好地反映了预交联凝胶颗粒的驱油机理，拟合了室内实验结果，并实现了矿场的拟合、跟踪应用。

关键词: 渗流特征, 通过因子, 数学模型, 数值模拟, 非均相复合驱, 提高采收率

Abstract: Heterogeneous combination flooding is a new chemical flooding method for further enhancing oil recovery in post-polymer-flooding reservoirs,and its main components of displacing agents include branched preformed particle gel(B-PPG),polymer and surfactant.According to laboratory experiments,the physicochemical properties of B-PPG and its oil-displacing characteristics are obviously different from that of polymer.The traditional mathematics model and simulators for chemical flooding can not accurately describe the oil displacement mechanism of B-PPG.In order to figure out the mechanism of heterogeneous combination flooding,a concept of particle throughput factor was introduced based on laboratory experiment results.We described the discontinuous migration features of B-PPG particles,modified the mathematical representation of residual resistance coefficient,built a new mathematical model,and performed fast solution algorithm research and software realization.Numerical experiments showed that the mathematical model can satisfactorily describe the oil-displacing mechanism of B-PPG,fit laboratory experiment results,and show good performance in history matching and dynamic tracking in field application.

Key words: seepage characteristics, throughput factor, mathematical model, numerical simulation, heterogeneous combination flooding, enhanced oil recovery

中图分类号:

TE357

曹伟东,戴涛,于金彪,等. 非均相复合驱数值模拟方法研究与应用[J]. 石油与天然气地质, 2016, 37(4): 606-611. doi: 10.11743/ogg20160419 Cao Weidong,Dai Tao,Yu Jinbiao,et al. A numerical simulation method of heterogeneous combination flooding[J]. Oil & Gas Geology, 2016, 37(4): 606-611. doi: 10.11743/ogg20160419

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非均相复合驱数值模拟方法研究与应用

A numerical simulation method of heterogeneous combination flooding

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