玉门H低渗透裂缝油藏强化泡沫防气窜实验研究

doi:10.11885/j.issn.1674-5086.2019.06.19.02

西南石油大学学报(自然科学版) ›› 2019, Vol. 41 ›› Issue (5): 96-104.DOI: 10.11885/j.issn.1674-5086.2019.06.19.02

玉门H低渗透裂缝油藏强化泡沫防气窜实验研究

胡灵芝^1,2, 赵金洲¹, 魏鹏³, 张艺文¹

1. “油气藏地质与开发工程”国家重点实验室·西南石油大学, 四川成都 610500;
2. 中国石油玉门油田分公司老君庙采油厂, 甘肃玉门 735200;
3. 新疆大学化学与化工学院, 新疆乌鲁木齐 830001

收稿日期:2019-06-19 出版日期:2019-10-10 发布日期:2019-10-10
通讯作者: 胡灵芝,E-mail:hulz@petrochina.com.cn
作者简介:胡灵芝,1973年生,男,汉族,四川渠县人,高级工程师,硕士,主要从事油气田开发技术研究及管理等方面的工作。E-mail:hulz@petrochina.com.cn;赵金洲,1962年生,男,汉族,湖北仙桃人,教授,博士生导师,主要从事油气田开采和增产新技术新理论的研究。E-mail:zhaojz@swpu.edu.cn;魏鹏,1987年生,男,汉族,四川成都人,讲师,博士,主要从事油田化学方面的研究。E-mail:shibadin@qq.com;张艺文,1995年生,男,汉族,四川成都人,硕士研究生,主要从事石油化学方面的研究。E-mail:776335183@qq.com

An Experimental Study on Enhanced Foam Anti-gas Channeling in the Yumen H Low Permeability Fractured Reservoir

HU Lingzhi^1,2, ZHAO Jinzhou¹, WEI Peng³, ZHANG Yiwen¹

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Laojunmiao Production Plant, Yumen Oilfield Branch, PertroChina, Yumen, Gansu 735200, China;
3. School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang 830001, China

Received:2019-06-19 Online:2019-10-10 Published:2019-10-10

摘要/Abstract

摘要： 玉门油田贫氧空气驱油先导试验中3口采油井过早发生明显的气窜，使产液量与产油量大幅下降，影响正常生产。采用Waring Blender方法测定了矿化度8.3×10⁴ mg/L、温度114℃条件下的不同配方体系的泡沫性能，确定了较优的0.2% WP4+0.3% NS强化泡沫体系配方，通过岩芯驱替实验研究了该体系的高温高压稳定性、低渗透裂缝岩芯封堵性及气驱后贫氧空气泡沫调驱提高采收率的效果。实验结果表明，强化泡沫在高压条件下稳定性明显提高；能够增加流体在基质及裂缝中流动时的阻力，具有流度控制能力，阻力因子分布在5.09~38.66；对于贫氧空气驱后采用强化泡沫调驱的岩芯，提高采收率可达16.70%~38.11%。

关键词: 玉门油田, 裂缝储层, 强化泡沫, 调驱, 防气窜

Abstract: In a pilot test of the oxygen-poor air drive in the Yumen Oilfield, the three production wells had premature gas channeling, which caused a substantial drop in the liquid and oil production and affected normal production. The foam properties of different formulations with a salinity of 8.3×10⁴ mg/L and a temperature of 114℃, were determined with the Waring Blender method. The optimal formulation was determined:0.2%WP4 + 0.3% NS enhanced foam system. The stability at high-temperature and high-pressure, the plugging of low permeability cracks, and the EOR effect of oxygen-poor air foam injection after gas drive studied. The results show that the stability of the enhanced foam is improved under high-pressure. It can also increase the resistance of the fluid flowing in the matrix and the cracks and can control the fluidity. The resistance factor is between 5.09~38.66. Enhanced foam profile control and displacement after oxygen-poor air drive can increase the recovery efficiency of core by 16.70%~38.11%.

Key words: Yumen Oilfield, fracture reservoir, enhanced foam, profile control and displacement, anti-gas channeling

中图分类号:

TE357

胡灵芝, 赵金洲, 魏鹏, 张艺文. 玉门H低渗透裂缝油藏强化泡沫防气窜实验研究[J]. 西南石油大学学报(自然科学版), 2019, 41(5): 96-104.

HU Lingzhi, ZHAO Jinzhou, WEI Peng, ZHANG Yiwen. An Experimental Study on Enhanced Foam Anti-gas Channeling in the Yumen H Low Permeability Fractured Reservoir[J]. 西南石油大学学报(自然科学版), 2019, 41(5): 96-104.

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玉门H低渗透裂缝油藏强化泡沫防气窜实验研究

An Experimental Study on Enhanced Foam Anti-gas Channeling in the Yumen H Low Permeability Fractured Reservoir

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