水平井裸眼分段压裂完井是改变低渗透油气田多井低产、转变发展方式、实现少井高产的重要手段.为了最大限度地提高苏里格气田低压、低渗透气藏的产量,苏里格气田采用了水平井裸眼分段压裂完井技术.截至目前,该气田已在15口水平井上应用了水平井裸眼分段压裂完井技术,完井后的产气量是周围常规酸化压裂邻井的5～10倍.介绍了水平井裸眼分段压裂完井管柱的结构、工作原理、技术特点以及配套工具的结构特征.以苏20-13-21H井为例,介绍了水平井裸眼分段压裂完井的设计原则、裂缝参数优化方法、压裂材料优选方法及分段压裂完井的工艺流程.%Staged fracturing in horizontal openhole wells is an important method to reverse low production rate in low permeability reservoir, change development method, and achieve high production rate. At present,this technology has been used in 15 horizontal wells in Sulige Gas Field. The production rate increased by 5-10 times compared with offset wells using conventional acid fracturing. This paper introduced the structure,working principles,technical characteristics of completion string and its associated equipment structure. Using Well Su 20-13-21H as an example, the design principle,fracturing parameter optimization method,fracturing material selection and staged fracturing procedure was introduced.
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