recompletion

Taking Wenliu complicated faultblock oilfield as an example,the article classifies and induces the applying situation of special drilling and 4in casing completion in 51/2in or 7in tube well tchnology used in various reserviors and different developing stages.

以文留复杂断块油藏为例,对特殊钻井和下4″套管重新完井技术在不同类型、不同开发阶段单元开发中的应用进行了归纳分类,认为特殊钻井技术和完井新技术对改善油田开发效果,提高开发综合经济效益发挥了独到的作用;并进行了技术经济评价,指出特殊钻井技术是复杂断块油田经济高效开发的主导钻井技术,下4″套管重新完井技术是解决井况恶化和实现层系细分开发的有效途径。