The invention belongs to the technical field of perforating completion of an oil well, and particularly discloses a gas cleaning device for an oil downhole laser perforator. The device comprises a high pressure gas source, high pressure pipe, fixed shell, rotating shell and shell rotation controller; high pressure gas source, the high-pressure pipe and fixed shell are connected and fixed arranged on the shell can rotate relative to the shell casing sliding, and the rotation of the shell is equipped with a nozzle, a rotary shell controller installed on the fixed shell and rotating the shell is connected to control the rotation motion of a housing, and fixed shell and the downhole laser perforator is connected with high pressure gas by high pressure gas introduction device, nozzle through the movement direction controllable injection impurity interference laser path away, and then provide clean channel for downhole laser perforator perforating operation, improve the downhole laser perforation operation efficiency.
【技术实现步骤摘要】
【技术保护点】
１．一种石油井下激光射孔器气体清扫装置，其特征在于，该装置包括高压气源（１０１）、高压气管（１０２）、固定外壳（１０５）、旋转外壳（１０４）和旋转外壳控制器（１０８）；其中：高压气管（１０２）一端经固定外壳（１０５）与气体清扫装置内部（１０３）相通，另一端与高压气源（１０１）连接；固定外壳（１０５）为一侧壁上设有敞口的壳体，在敞口处安装有可相对于固定外壳（１０５）滑动的旋转外壳（１０４），该旋转外壳（１０４）上设有喷嘴（１１４），在与敞口所在侧壁相对的固定外壳（１０５）的另一侧壁上设有透光窗（１０７），该设有透光窗（１０７）的侧壁与激光射孔器（１１１）相连接；旋转外壳控制器...
【技术特征摘要】
【专利技术属性】
技术研发人员：白晋涛，张云博，陈浩伟，陆宝乐，许冠军，任兆玉，
申请(专利权)人：西北大学，
类型：发明
国别省市：87
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