[1]刘旭鹏,袁彬,戴彩丽,等.低渗油藏活性纳米颗粒减阻增注解析模拟方法[J].深圳大学学报理工版,2021,38(6):563-571.[doi:10.3724/SP.J.1249.2021.06563]
 LIU Xupeng,YUAN Bin,,et al.A novel analytical simulation method of utilization of surfactant-active nanoparticles for well injection enhancement in low-permeability reservoirs[J].Journal of Shenzhen University Science and Engineering,2021,38(6):563-571.[doi:10.3724/SP.J.1249.2021.06563]
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低渗油藏活性纳米颗粒减阻增注解析模拟方法()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第38卷
期数:
2021年第6期
页码:
563-571
栏目:
环境与能源
出版日期:
2021-11-15

文章信息/Info

Title:
A novel analytical simulation method of utilization of surfactant-active nanoparticles for well injection enhancement in low-permeability reservoirs
文章编号:
202106002
作者:
刘旭鹏1袁彬123戴彩丽123李跃1韩明亮1
1)中国石油大学(华东)石油工程学院,山东青岛266580
2)中国石油大学(华东)非常规油气开发教育部重点实验室,山东青岛266580
3)山东省油田化学重点实验室,山东青岛266580
Author(s):
LIU Xupeng1 YUAN Bin1 2 3 DAI Caili1 2 3 LI Yue1 and HAN Mingliang1
1)School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong Province, P.R.China
2)Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao 266580, Shandong Province, P.R.China
3)Shandong Key Laboratory of Oilfield Chemistry, Qingdao 266580, Shandong Province, P.R.China
关键词:
油田开发低渗油藏降压增注活性纳米颗粒特征线法疏水滑移
Keywords:
oilfield development low permeability reservoirs pressure drop and injection enhancement surfactant-active nanoparticles method of characteristics (MOC) hydrophobic slip
分类号:
TE348
DOI:
10.3724/SP.J.1249.2021.06563
文献标志码:
A
摘要:
为研究活性纳米颗粒在低渗储层中减阻增注的作用机理,真实模拟储层孔隙表面粗糙条件,构建了周期性矩形凹槽结构的微管模型和粗糙表面纳米颗粒受力均衡模型,形成了孔隙表面活性纳米颗粒极限附着体积分数模型.利用特征线法解析模拟了低渗储层孔隙活性纳米颗粒悬浮-附着-堵塞耦合的渗流过程.综合考虑注入纳米颗粒附着及堵塞等储层损害机制和颗粒附着产生的滑移效应,建立活性纳米颗粒降压增注理论模型.结果表明:注入纳米颗粒后,岩心两端压降(垂直表面的压强差)较未注入时下降明显,降压率可达40%;通过比对注入前后注水指数的大小,注入活性纳米流体后岩心注水能力得到显著提高.该模型为低渗油藏活性纳米流体降压增注技术提供了一定的理论基础.
Abstract:
In order to study the mechanism of surfactant-active nanoparticles in drag reduction and injection enhancement in low-permeability reservoirs and to simulate the rough condition of the pore surface of the reservoirs, we construct a microtube model with periodic rectangular groove structure and a force balance model of nanoparticles on rough surface to get the limit adhesion concentration fraction model of surfactant-active nanoparticles on pore surface. The method of characteristics (MOC) is used to analyze and simulate the seepage process of the suspension-adhesion-plugging coupling of surfactant-active nanoparticles in pores of low permeability reservoirs. By comprehensively considering reservoir damage caused by the mechanisms such as particle attachment and blockage and the slip effect established by nanoparticle attachment, a theoretical model for resistance reduction and injection enhancement of surfactant-active nanoparticles has been formed. The results show that comparing with the core without nanoparticles flooding, the pressure drop of the core decreases significantly after the injection of nanoparticles, and the pressure drop reaches 40%. At the same time, by comparing the water injection index before and after injection, the core injection capacity is significantly improved after the surfactant-active nanofluid injection. This model provides a certain theoretical basis for the technology of pressure reduction and injection enhancement of surfactant-active nanoparticles in low permeability reservoirs.

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备注/Memo

备注/Memo:
Received:2021-07-21;Accepted:2021-09-01;Online(CNKI):2021-10-09
Foundation:National Natural Science Foundation of China (52074338); National Key R & D Program of China (2019YFA0708700); The Fundamental Research Fundation for the Central Universities (20CX06071A)
Corresponding author:Professor YUAN Bin. E-mail: yuanbin@upc.edu.cn
Citation:LIU Xupeng, YUAN Bin, DAI Caili, et al. A novel analytical simulation method of utilization of surfactant-active nanoparticles for well injection enhancement in low-permeability reservoirs[J]. Journal of Shenzhen University Science and Engineering, 2021, 38(6): 563-571.(in Chinese)
基金项目:国家自然科学基金资助项目(52074338);国家重点研发计划资助项目 (2019YFA0708700);中央高校基本科研业务费专项资金资助项目(20CX06071A)
作者简介:刘旭鹏(1997—),中国石油大学(华东)硕士研究生.研究方向:资源与环境石油与天然气工程.
E-mail:liuxvpeng11@163.com
引文:刘旭鹏,袁彬,戴彩丽,等.低渗油藏活性纳米颗粒减阻增注解析模拟方法[J]. 深圳大学学报理工版,2021,38(6):563-571.
更新日期/Last Update: 2021-11-30