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二连油田蒙古林砾岩油藏具有底水活跃,水敏性强,油层较薄,单井自然产能低等特点。油藏开发初期,曾采用常规压裂,限流压裂和土酸酸化等增产措施,但效果不理想。小型压裂试验在该油藏取得好的效果,为该油藏开发稳产起到重要作用。文中分析了压裂用于该油田的理论依据、设计原理、现场实例和应用效果。提出了小型压裂措施的注意事项。
The Mongolian conglomerate reservoir in Erlian Oilfield is characterized by active bottom water, strong water sensitivity, thin oil reservoirs and low natural productivity per well. In the early stage of reservoir development, stimulation measures such as conventional fracturing, current-limited fracturing and acidizing soil had been used, but the results were not satisfactory. Small fracturing test in the reservoir to obtain good results, the stability of the reservoir development plays an important role. In this paper, the theoretical basis, design principles, field examples and application effects of fracturing in this field are analyzed. Put forward the precautions of small-scale fracturing measures.