利用钻、完井技术提高复杂断块油藏开发综合效益

Increasing the Comprehensive Development Benefit of Complicated Fault-block Oilfield by Means of Drilling and Completion Technology

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。

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.The research result is that special drilling and new well completion technology has distinctive action on improving oilfield development effects and increasing development comprehensive economic benefits.At the same time,the following viewpoint can be obtained that special drilling technology is the dominant drilling technology for making complicated faultblock oilfield to realize economic and higheffective development;4in casing completion in 51/2in or 7in tube well tchnology is the effective way of solving casing worsen and the series of strata's.