会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 71. 发明申请
    • Field-Assemblable Bow-Spring Casing Centralizer and Method of Making A Centralizer
    • 现场组合弓弹簧套管集中器和制造扶正器的方法
    • US20080264629A1
    • 2008-10-30
    • US11739284
    • 2007-04-24
    • Jean BuytaertEugene Edward Miller
    • Jean BuytaertEugene Edward Miller
    • E21B17/10
    • E21B17/1028
    • A casing centralizer is provided that may be shipped unassembled and is then assemblable at a well site. According to one embodiment, first and second collars each have a plurality of circumferentially spaced aligning slots and a corresponding plurality of threaded, extruded through-holes. A plurality of bow-springs each have a foot at each end. Each bow-spring axially extends between the first and second collars. The foot at one end of each bow-spring is disposed in one of the aligning slots of the first collar, and the foot at the other end is disposed in one of the aligning slots on the second collar. A plurality of threaded fasteners corresponding in number to the threaded extruded through-holes secure the ends of the bow-springs to the threaded extruded through-holes. The extruded through-holes have a flange height greater than a collar thickness adjacent to the extruded through-holes. The increased flange height allows more threads to be formed within the extruded holes, resulting in a stronger threaded connection with the threaded fasteners, and a correspondingly stronger, more durable centralizer. The foot is retained within the aligning slot to reinforce the coupling between the bow-spring and the collar. A method of manufacturing the casing centralizer is also provided.
    • 提供一种套管扶正器,其可以被未组装运输,然后可以在井场装配。 根据一个实施例,第一和第二轴环各自具有多个周向间隔开的对准槽和相应的多个螺纹的挤压通孔。 多个弓弹簧各自在每一端具有脚。 每个弓形弹簧在第一和第二轴环之间轴向地延伸。 每个弓形弹簧的一端的脚设置在第一轴环的一个对准槽中,另一端的脚设置在第二轴环上的一个对准槽中。 多个对应于螺纹挤压通孔的螺纹紧固件将弓形弹簧的端部固定到螺纹挤压通孔。 挤出的通孔的凸缘高度大于与挤出的通孔相邻的套环厚度。 增加的法兰高度允许在挤出的孔内形成更多的螺纹,导致与螺纹紧固件的更强的螺纹连接以及相应更坚固,更耐用的扶正器。 脚保持在对准槽内,以加强弓弹簧和套环之间的联接。 还提供了一种制造套管扶正器的方法。