专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5263683A Sliding sleeve valve 失效
标题翻译：滑套阀
公开(公告)号：US5263683A
公开(公告)日：1993-11-23
申请号：US878734
申请日：1992-05-05
申请人： Fred S. Wong
发明人： Fred S. Wong
IPC分类号： E21B34/14 , F16K51/00
CPC分类号： E21B34/14
摘要： A sliding sleeve valve for downhole use. A tubular main body has a radial flow port there-through and a primary annular seal carried adjacent its inner diameter and spaced longitudinally from the flow port in a first direction. A sleeve is carried co-axially within the main body for selective relative longitudinal movement. The sleeve has a seal section with an outer diameter sized to slidably sealingly engage the primary seal. The sleeve also has a radial aperture through the seal section and a recess in the outer surface of the seal section, surrounding and longer than the radially outer end of the aperture. The sleeve has a closed position, wherein the aperture and recess are longitudinally spaced from the primary seal in the first direction, and an open position, wherein the aperture is longitudinally spaced from the primary seal in a second direction opposite the first. The recess is sized and configured to permit the aperture to pass the primary seal while moving from closed to open position, under given temperature and pressure conditions, without substantial damage to the primary seal.
摘要翻译：用于井下使用的滑动套管阀。管状主体在其上具有径向流动端口，并且邻近其内径承载并沿着第一方向与流动端口纵向间隔开的主环形密封件。套筒在主体内同轴地承载，用于选择性的相对纵向移动。套筒具有密封部分，其外径的尺寸可滑动地密封地接合主密封件。套筒还具有穿过密封部分的径向孔和在密封部分的外表面中的凹部，围绕并且比孔的径向外端长。套筒具有闭合位置，其中孔和凹部在第一方向上与主密封件纵向间隔开，并且打开位置，其中孔与主密封件在与第一方向相反的第二方向纵向间隔开。凹槽的尺寸和构造允许孔在给定的温度和压力条件下从闭合到打开位置移动通过主密封，而不会对主密封件造成实质损坏。

IPRDB

热门服务

关于我们

友情链接

联系方式