响应面法优化两亲性MoS2纳米流体提高低渗透油藏采收率技术

doi:10.3969/j.issn.1006-6535.2024.06.015

特种油气藏 ›› 2024, Vol. 31 ›› Issue (6): 120-129.DOI: 10.3969/j.issn.1006-6535.2024.06.015

响应面法优化两亲性MoS₂纳米流体提高低渗透油藏采收率技术

梁拓¹, 尹成峰², 屈鸣³, 杨二龙³, 侯吉瑞⁴, 杨昌华¹

1.西安石油大学,陕西西安 710065;
2.中国石油大庆油田责任有限公司,黑龙江大庆 163511;
3.东北石油大学三亚海洋油气研究院,海南三亚 572025;
4.中国石油大学(北京),北京 102249

收稿日期:2023-06-29 修回日期:2024-08-17 出版日期:2024-12-25 发布日期:2025-01-22
通讯作者: 杨昌华(1972—),男,教授,1995年毕业于西安石油学院机械设计与制造专业,2014年毕业于中国石油大学(华东)油气井工程专业,获博士学位,现主要从事调剖调驱、堵水、注气及提高采收率等方面研究工作。
作者简介:梁拓(1994—),男,讲师,2017年毕业于中国石油大学(华东)石油工程专业,2022年毕业于中国石油大学(北京)油气田开发工程专业,获博士学位,现从事智能纳米流体提高采收率、稠油冷采、CCUS等方面研究工作。
基金资助:
陕西省自然科学基础研究计划“特低渗裂缝性油藏微米花与活性纳米片流体协同深部调驱机理”(2024JC-YBQN-0426);陕西省博士后科研项目“超低渗油藏小尺寸活性片状纳米流体渗吸排驱机理研究”(2023BSHTBZZ45)

Optimization of Amphipathic MoS₂ Nanofluids for Enhanced Oil Recovery in Low-Permeability Reservoirs by Response Surface Methodology

Liang Tuo¹, Yin Chengfeng², Qu Ming³, Yang Erlong³, Hou Jirui⁴, Yang Changhua¹

1. Xi'an Shiyou University,Xi'an,Shaanxi 710065,China;
2. PetroChina Daqing Oilfield Co.,Ltd,Daqing,Heilongjiang 163511,China;
3. NEPU Sanya Offshore Oil & Gas Research Institute,Sanya,Hainan 572025,China;
4. China University of Petroleum(Beijing),Beijing 102249,China

Received:2023-06-29 Revised:2024-08-17 Online:2024-12-25 Published:2025-01-22

摘要/Abstract

摘要： 为探究多因素交互作用对纳米流体提高采收率的影响,采用Design Expert软件中的Box-Behnken法进行响应面实验设计,以采收率为目标函数建立了注入孔隙体积倍数、注入速度和渗透率三者之间的二次多项回归方程。显著性分析表明,影响纳米流体提高采收率效果的因素按影响程度由大到小依次为渗透率、注入孔隙体积倍数、注入速度;响应曲面分析结果表明,注入速度和渗透率的交互作用对纳米流体提高采收率的影响最大。此外,利用控制变量法研究了渗透率、闷井时间和注入模式对纳米流体提高采收率的影响。研究表明:当纳米流体注入速度为0.2 mL/min、注入孔隙体积倍数为0.5、渗透率为1.00 mD、闷井时间为6 h、注入模式为多周期小段塞时,一次水驱后可再提高采收率18.63个百分点。该研究成果对两亲性MoS₂纳米流体在低渗透油藏中应用时的技术政策优化具有借鉴意义。

关键词: 低渗透油藏, 两亲性MoS₂纳米流体, 提高采收率, 响应面法, 控制变量法

Abstract: By exploring the influence of multi-factor interaction on enhanced oil recovery of nanofluids,a response surface experimental is designed by using Box-Behnken method in Design Expert.Taking the recovery rate as the objective function,a quadratic polynomial regression equation is established among the injection pore volume multiple,the injection rate and the permeability.The significance analysis shows that the factors affecting the enhanced oil recovery by nanofluids are:permeability,injection pore volume multiple,injection rate;The response surface analysis indicated that the interaction between injection rate and permeability has the greatest impact on the enhanced oil recovery of nanofluids.In addition,the effects of permeability,shut-in time and injection mode on the enhanced oil recovery of nanofluids were studied by using the control variable method.The research indicates that when the nanofluid injection rate is 0.2 mL/min,the injected pore volume multiple is 0.5,the permeability is 1.00 mD,the shut-in time is 6 hours,and the injection mode is multi-cycle pill injecting,the recovery rate can be further increased by 18.63 percent points after a single water flooding.The research results have reference significance for the technical optimization of amphipathic MoS₂ nanofluids for enhanced oil recovery in low-permeability reservoirs.

Key words: low permeability reservoirs, amphipathic MoS₂ nanofluids, enhanced oil recovery, response surface methodology, controlled variable

中图分类号:

TE357

梁拓, 尹成峰, 屈鸣, 杨二龙, 侯吉瑞, 杨昌华. 响应面法优化两亲性MoS₂纳米流体提高低渗透油藏采收率技术[J]. 特种油气藏, 2024, 31(6): 120-129.

Liang Tuo, Yin Chengfeng, Qu Ming, Yang Erlong, Hou Jirui, Yang Changhua. Optimization of Amphipathic MoS₂ Nanofluids for Enhanced Oil Recovery in Low-Permeability Reservoirs by Response Surface Methodology[J]. Special Oil & Gas Reservoirs, 2024, 31(6): 120-129.

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响应面法优化两亲性MoS₂纳米流体提高低渗透油藏采收率技术

Optimization of Amphipathic MoS₂ Nanofluids for Enhanced Oil Recovery in Low-Permeability Reservoirs by Response Surface Methodology

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