Study on EOR by ASP of Targeted Delivery
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    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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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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  • Online: November 15,2017
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