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从文、马油田的地质特点、开发历程出发，分析了大孔道的形成因素。针对其渗透率高、孔喉半径大、油水井连通性好的特点，进行了室内堵剂种类、浓度的筛选及堵剂性能的评价，对原有调剖工艺进行了改进，并进行了现场试验，形成并逐步完善了封堵大孔道工艺技术。１９９７年以来运用该工艺封堵大孔道井２５口，累计增油７３０３ｔ，降水２９ ９２２ｍ~３，投入产出比达１：３．７，有效地解决了封堵大孔道的难题。该工艺改善了层间矛盾，提高了水驱采收率，具有较大的推广应用价值。
Based on the geological characteristics and development history of Wen and Ma oilfields, the forming factors of macropores are analyzed. According to the characteristics of high permeability, large pore throat radius and good connectivity of oil and water well, the type and concentration of indoor plugging agent and the evaluation of plugging performance were evaluated. The original profile control technology was improved and the site Test, to form and gradually improve the closure of large-hole technology. Since 1997, 25 large-aperture wells have been sealed by this process, with a total increase of 7303 tons of oil and 29 922 m 3 of precipitation. The input-output ratio reached 1: 3.7, which effectively solved the problem of plugging large channels. The process to improve the contradiction between layers and improve the recovery of water flooding, with a larger promotion and application value.