广谱暂堵技术在轮古地区的应用

塔里木轮古地区作为勘探开发的重要地区，油气层保护技术得到了高度的重视。轮古地区是典型的裂缝型碳酸盐岩油气藏，裂缝发育，缝洞间的连通较好。采用屏蔽暂堵技术进行油气层保护的过程中，发现如果只注重暂堵剂粒子的平均粒径与裂缝宽度的平均值之间的匹配，不能达到最好的保护油气层效果。通过对暂堵剂粒子的粒径分布与裂缝分布特征之间的匹配，将达到很好的保护油气层效果。针对轮古地区裂缝性地层的特点，总结该类地层的损害因素，从理论上研究得出了适合于该地区的暂堵剂，通过室内实验证明了该类暂堵剂在轮古地区的适应性，并提出了相应的现场应用工艺技术，取得了很好的保护油气层效果。

Application of Extensive Temporary Plugging Technology in Lungu Block

As an important area of exploration and development,reservoir protection technology has met with much recognition in LunGu block.LunGu block is a typical fractured carbonate rock reservoir,have much crevices and the crevices and holes link well with each other.A great deal of experiments clearly shows that the reservoirs can't get the best protect effectively if just consider the matching between the diameter of temporary plugging agent and the width of the crevices,pay more attention to the matching of distributing characters will reduce damage in reservoirs.On the basis of the fractured characters of LunGu block,using extensive temporary plugging technology,the formulation of temporary plugging agent suited for the block is optimized.Through laboratory testing and field application,it is shown that a good result has been achieved in reservoirs protection.