公开(公告)号：EP2447466B1

公开(公告)日：2018-10-31

申请号：EP10192151.8

申请日：2010-11-23

申请人： Weatherford Technology Holdings, LLC

发明人： Ward, Ryan ,  Williams, Ron ,  Smith, Roddie R.

IPC分类号： E21B34/10

CPC分类号： E21B34/10 ,  E21B34/101 ,  E21B2034/007

摘要： A downhole flow device has a sliding and ported sleeves. A seal has a first component on the sliding sleeve and a second component on the ported sleeve. These components engage one another to seal flow through the ports in the ported sleeve. The components move apart to allow fluid flow through the ports. The components are protected from abrasion and flow by virtue of the seal's structure and how it is opened. The sliding sleeve moves hydraulically along an axis of the ported sleeve to reveal successive ports defined along the sleeve's axis. Operation of the device and the seal address both erosion and damage from differential pressure problems. Thus, the seal prevent damage when unloading a differential pressure across it, and abrasive flow does not have the opportunity to impinge on the sealing surfaces to cause erosion.

公开(公告)号：EP2447466A3

公开(公告)日：2017-03-15

申请号：EP10192151.8

申请日：2010-11-23

申请人： Weatherford Technology Holdings, LLC

发明人： Ward, Ryan ,  Williams, Ron ,  Smith, Roddie R.

IPC分类号： E21B34/10

CPC分类号： E21B34/10 ,  E21B34/101 ,  E21B2034/007

摘要： A downhole flow device has a sliding and ported sleeves. A seal has a first component on the sliding sleeve and a second component on the ported sleeve. These components engage one another to seal flow through the ports in the ported sleeve. The components move apart to allow fluid flow through the ports. The components are protected from abrasion and flow by virtue of the seal's structure and how it is opened. The sliding sleeve moves hydraulically along an axis of the ported sleeve to reveal successive ports defined along the sleeve's axis. Operation of the device and the seal address both erosion and damage from differential pressure problems. Thus, the seal prevent damage when unloading a differential pressure across it, and abrasive flow does not have the opportunity to impinge on the sealing surfaces to cause erosion.

摘要翻译： 井下流动装置具有滑动和移动的套筒。 密封件具有滑动套筒上的第一部件和移动套筒上的第二部件。 这些部件彼此接合以密封流过移动套筒中的端口的流动。 组件移动分开，以允许流体流过端口。 通过密封件的结构以及如何打开这些部件，保护部件免受磨损和流动。 滑动套筒沿着移动套筒的轴线液压地运动，以显示沿套筒轴线限定的连续端口。 设备和密封件的操作既解决了差压问题的侵蚀和损坏。 因此，当在其上卸载压差时，密封件防止损坏，并且磨料流不会碰撞在密封表面上以引起侵蚀。