“井工厂”压裂模式在大牛地气田的应用　　

Application of “well plant” fracturing mode in Daniudi gas field

李克智 何青 秦玉英 李国锋 张永春 李月丽

LI Kezhi HE Qing QIN Yuying LI Guofeng ZHANG Yongchun LI Yueli

中国石化华北分公司，河南郑州　450006

Huabei Branch, Sinopec, Zhengzhou 450006, China

为进一步加快大牛地气田利用水平井组开发天然气步伐，结合盒1气层改造的要求，在多级管外封隔器水平井分段压裂工艺的基础上，开展了井组压裂模式的研究。通过优化压裂设计，同时结合施工参数及裂缝监测结果对设计参数进行实时调整，形成了丛式水平井组“井工厂”压裂模式分段压裂工艺。在R井组6口水平井进行了现场试验，压后井组无阻流量达77.88×104 m3/d，成功探索出了适合致密砂岩气藏水平井组“井工厂”压裂开发的有效途径。

To accelerate gas field development of Daniudi field using horizontal well pattern, considering the demand of He-1 gas layer stimulation, well pattern fracturing mode study is conducted, based on horizontal well sectional fracturing technique with multi-stage packers. Through optimizing fracturing design, the design parameters are adjusted real-time combined with the operation parameters and fracture monitoring results, and the cluster horizontal wells “well plant” fracturing mode is formed. Field applications are conducted on the 6 horizontal wells in R pattern, with the result of 77.88×104 m3/d as absolute open flow rate. The study explores successfully the effective method to develop tight sand gas reservoirs by horizontal well fracturing.