靶向输送三元复合体系提高采收率技术研究
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国家示范工程 “大庆长垣特高含水油田提高采收率示范工程”(项目编号2011ZX05052), 国家自然科学基金项目 “ASP复合驱油藏油水界面张力变化规律及残余油启动机制研究”(项目编号51174216)


Study on EOR by ASP of Targeted Delivery
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    摘要:

    为减少ASP三元复合驱油体系在近井地带的吸附损失, 进一步提高ASP三元复合体系的利用效率, 提出了一种靶向输送ASP三元复合驱油体系的新方法: 将水射流钻水平井技术与三元复合驱相结合, 应用水射流的工艺钻通注入井附近剩余油较少的区域, 直接将 ASP 三元复合驱油体系输送至剩余油富集区域。使用渗透率100×10-3~1500×10-3mm2的30 cm均质方岩心进行物理模拟, 水驱完成后钻出10 cm的靶向通道, 进行ASP三元复合驱油体系的靶向输送模拟, 考察靶向输送ASP驱油体系的驱油效果, 并与常规ASP三元复合驱油效果做对比。研究结果表明, 对于渗透率为 100×10-3、 700×10-3、 1500×10-3 μm2左右的岩心, 在水驱基础上, 常规驱替 ASP三元复合驱油体系提高采出程度分别为 13.43%、 14.19%、 19.76%; 而在相同条件下采用靶向输送方式注入 ASP三元复合驱油体系的提高采出程度分别为 26.29%、 29.77%、 38.84%, 采用靶向输送方式 ASP 驱替提高采出程度是常规 ASP驱替的两倍左右。靶向输送技术在三元复合驱提高采收率方面具有非常广阔的应用前景。图 3表 1参 11

    Abstract:

    In order to reduce the adsorption loss of ASP flooding system in near the well area and further improve the efficiency of ASP composite system,a new method of transporting ASP flooding system,combining the water jet drilling horizontal well technology with the ASP flooding,was proposed,the area, less of remaining oil near the injection wells, was drilled through using the water jet technology,and the ASP flooding system was directly transported into the area enriched of remaining oil. The physical simulation experiments were performed using the 30 cm homogeneous core with the permeability of 100×10-3—1500×10-3 μm2,after water flooding,the 10 cm target channel was drilled to simulate the targeted transmission of ASP compositebsystem,and thebeffect of the oil displacement of the targeted transmission of ASP composite system was studied,compared with the conventional ASP flooding. The results showed that for the core with the permeability of 100×10-3, 700×10-3 and 1500×10-3 μm2,on the basis of water flooding,the enhanced of oil recovery of the 3 PV conventional ASP flooding was only 13.73%,14.76% and 19.76%, respectively,while the enhanced of oil recovery of the targeted transmission of ASP flooding system was 26.29%,29.77% and 38.84%,respectively,which was twice as much as the former. The targeted transmission technology in ASP flooding enhanced oil recovery has a very broad application prospects.

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侯吉瑞 , 吴 凡 , 马云飞 , 赵凤兰 , 宋兆杰 , 尚丹森 .靶向输送三元复合体系提高采收率技术研究[J].油田化学,2017,34(3):524-527.
HOU Jirui, WU Fan, MA Yunfei, ZHAO Fenglan, SONG Zhaojie, SHANG Dansen. Study on EOR by ASP of Targeted Delivery[J]. OILFIELD CHEMISTRY,2017,34(3):524-527.

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  • 在线发布日期: 2017-11-15
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