公开(公告)号：US4291764A

公开(公告)日：1981-09-29

申请号：US110078

申请日：1980-01-07

申请人： Davy G. Pampell

发明人： Davy G. Pampell

IPC分类号： E21B37/02

CPC分类号： E21B37/02

摘要： A well casing scraping apparatus includes a generally cylindrical mandrel connected to a power driven rotatable work string or conduit. At least one peripheral ramp surface is formed on the mandrel and an annular scraping means is formed by the assembly of a plurality of externally toothed arcuate segments around the ramp surface portion of the tool support, with each segment having an internal arcuate ramp surface conforming to the adjacent portion of the mandrel ramp surface. Retaining sleeves are provided for the tool segments which not only retain the segments against radial outward movement but confine the segments axially to engagement with a particular portion of the ramp surfaces, whereby the effective working diameter of the segmented scraping means may be effectively controlled by changing the axial position of the retaining sleeves.

摘要翻译： 井套管刮削装置包括连接到动力驱动的可旋转工作线或导管的大致圆柱形的心轴。 在心轴上形成至少一个外周坡道表面，并且通过围绕工具支撑件的斜面部分组合多个外齿弧形段来形成环形刮削装置，每个段具有内弧形斜面，其符合 心轴斜面的相邻部分。 为工具段设置保持套筒，其不仅保持节段抵抗径向向外的运动，而且将节段轴向限制为与斜面的特定部分接合，由此可以通过改变分段刮削装置的有效工作直径来有效地控制 保持套的轴向位置。

公开(公告)号：US4512363A

公开(公告)日：1985-04-23

申请号：US411407

申请日：1982-08-25

申请人： Frank J. Jandrasi ,  Davy G. Pampell ,  Walter J. Stinson

发明人： Frank J. Jandrasi ,  Davy G. Pampell ,  Walter J. Stinson

IPC分类号： F16K3/02 ,  F16K3/316 ,  F16L7/00

CPC分类号： F16K3/316 ,  F16K3/0218 ,  Y10T137/7036

摘要： Disclosed is a slide valve in which the valve internals, the valve seat, guides and slide valve are maintained in position by a clamping action of an abutment in the valve body and on the valve liner secured in the body by a quick make-up connection. The slide valve is suited for all sizes of valves, both large and small and no screws or other fasteners are needed to maintain the valve internals in position. Advantageously, the guides and slides of the slide valve are maintained out of the flow path, and the valve internals including the orifice assembly with its valve seat and guides, and slide valve with its slides are readily removable through the bonnet area.

摘要翻译： 公开了一种滑阀，其中阀内部件，阀座，引导件和滑阀通过紧固在阀体中的抵接件和通过快速补充连接固定在阀体中的阀衬套保持在适当的位置 。 滑阀适用于所有尺寸的大型和小型阀门，不需要螺丝或其他紧固件来将阀门内部件保持在适当位置。 有利地，滑阀的引导件和滑动件保持在流动路径之外，并且包括具有其阀座和引导件的孔口组件以及具有其滑动件的滑阀的阀内件可容易地通过阀盖区域移除。