水平井选择性完井工艺

SELECTIVE COMPLETION TECHNIQUE FOR HORIZONTAL WELL

徐克彬 尹爱春 顾维军

Xu Kebin Yin Aichun Gu Weijun

华北石油管理局井下作业公司

华北油田任平2井?177.8mm技术套管下至3150.36m潜山顶部,然后用?152.4mm钻头增斜和水平钻至井深3483m。根据测井资料,用3个封隔器和2个CMD滑套的完井管柱将目的层分为两段,先用换位工具将上、下两段的滑套都打开进行合试,然后关闭上段滑套只对下段试油,后又进行了酸化。实践证明,选择性完井工艺是成功的。文中介绍了选择性完井管柱各工具的结构、功能,并详细介绍了在任平2井的使用情况。

In Well Renping 2 of Huabei oil field, the intermediate casing was set to the top of buried hill at 3150. 36 m, then the build up and horizontal sections were drilled with 152. 4 mm bit to 3483 m. A completion string consisted of 3 packers and 2 CMD slide sleeves was used to divide the target interval into two sections. A commingled production test was done with both slide sleeves open by the position switch tool, then only the lower section was tested with the lower slide sleeve closed and an acidizing was applied finally. The prac-tice proved the selective completion technique successful. This paper describes the structure and function of various tools in the selective completion string and presents in detail its appli-cation in Well Renping 2.

10.3969/j.issn.1000-7393.1998.04.001