专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US4915172A Method for completing a non-vertical portion of a subterranean well bore 失效
标题翻译：完成井下非垂直部分的方法
公开(公告)号：US4915172A
公开(公告)日：1990-04-10
申请号：US357173
申请日：1989-05-25
申请人： Joseph F. Donovan , Edward C. Spatz , John V. Salerni , Elmer R. Peterson , John B. Weirich
发明人： Joseph F. Donovan , Edward C. Spatz , John V. Salerni , Elmer R. Peterson , John B. Weirich
IPC分类号： E21B17/10 , E21B23/00 , E21B43/04
CPC分类号： E21B23/00 , E21B17/1014 , E21B43/045
摘要： A method and apparatus for effecting the completion of non-vertical, including horizontally disposed, portions of a deviated well bore traversing a production formation. To facilitate the insertion of a gravel packing tool string through the curved portion of the well bore, stabilizer elements are maintained in a radially retracted position and then operated to engage the well bore after the tool string is run-in. An anti-rotation tool may be incorporated for connecting the work string to the left hand threads conventionally provided on a conventional packer in order to permit rotation of the entire tool string to facilitate passage through the curved portion of the well bore. Two gravel packing modifications are disclosed, the one employing a single packer and a cross-over tool located at the top end of a plurality of serially connected screens. In the other modification, a plurality of gravel packing sections, including stabilizers, screens, a sleeve valve housing and a packer are serially connected together and run-in. A cross-over tool is then inserted by a separate tubular work string to be initially positioned adjacent the lowermost packer to accomplish the packing of the lowermost screens and then moved to the next packer to successively effect the gravel packing of all of the gravel packing sections.
摘要翻译：完成穿过生产组合的偏斜井的非垂直（包括水平设置）部分的方法和装置。为了便于将砾石包装工具串穿过井眼的弯曲部分，稳定器元件保持在径向缩回位置，然后在工具串进入后操作以接合井眼。可以结合用于将工作串连接到常规设置在常规封隔器上的左手螺纹的防旋转工具，以允许整个工具柱的旋转以便于通过井眼的弯曲部分。公开了两个砾石包装的变型，其中采用单个封隔器和位于多个串联连接的屏幕顶端的交叉工具。在另一变型中，包括稳定器，筛网，套筒阀壳体和封隔器的多个砾石填充部分串联连接在一起并进入。然后将交叉工具通过单独的管状工作线插入，以最初位于最下面的封隔器附近，以完成最下面的筛网的包装，然后移动到下一个封隔器，以连续地实现所有砾石包装部分的砾石包装。

IPRDB

热门服务

关于我们

友情链接

联系方式