The Research and Application of High Temperature Resistance Plugging Agent and Plugging Technology

WANG Chunsheng, SUN Yingfan, ZHANG Zhenzhen, MENG Shan, XU Chang

Abstract


For high temperature steam channeling problem of the middle and later of the heavy oil reservoir, using simple variable method to optimize the ratio of the of proportion the plugging agent and Static and dynamic performance are evaluated; combined the experimental data with CMG numerical simulation software to optimize the plugging process parameters. The formula of high temperature resistant gel type plugging agent system: The first working liquid: 1.8%cross-linking agent II+ 6% modified high temperature resistant main agent; The second working liquid: 0.03% coagulant aid+2.2% cross-linking agent I. The gelling viscosity of the plugging agent more than 2 x 106 mPa·s, PH = 6-8 is applied, heat-resistant > 280 ℃, plugging rate > 96.75%; Using the double fluid method and low-pressure low-emission to inject. Optimizing the radius of profile control is 15 m, valid for 7-10 months, it has the obvious effect of increasing oil and controlling water.
Key words: Steam flooding; Steam channeling; High temperature; Plugging agent; Profile control; Double fluid method

Keywords


Steam flooding; Steam channeling; High temperature; Plugging agent; Profile control; Double fluid method

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References


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DOI: http://dx.doi.org/10.3968%2Fj.aped.1925543820140701.1933

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