论文部分内容阅读
深部调剖驱油技术作为厚油层层内剩余油挖潜的重要措施在油田注水开发后期起着越来越重要的作用。在综合调研国内外有关深部调剖技术的研究和应用基础上,综合分析了凝胶类、微生物类、沉淀型无机盐类和粘土颗粒类等4类调剖驱油剂在国内外的发展和应用状况,指出了它们的适用范围和特点,重点对比了本体弱凝胶(BG)、胶态分散凝胶(CDG)、黄原胶(XC)和预交联凝胶颗粒(PG)等4种常用深部调剖剂的优缺点,并对凝胶类调驱剂的交联剂选择进行了分析,分析了深部调驱剂的发展潜力和方向。
Deep profile control and oil displacement technology as an important measure for tapping potential of remaining oil in thick oil layers plays an increasingly important role in the late stage of oilfield waterflooding. Based on the comprehensive research and application of deep profile control technology both at home and abroad, the development and application of four types of profile control oil displacement agents such as gels, microorganisms, precipitated inorganic salts and clay particles are analyzed comprehensively The applications and their applications are pointed out, and the applications of bulk gels (BG), colloidal disperse gels (CDG), xanthan gum (XC) and pregelatinized gel particles (PG) The advantages and disadvantages of the commonly used deep profile control agent are analyzed. The selection of cross-linking agent for gel-type transfer agent is analyzed. The development potentiality and direction of deep transfer agent are analyzed.