公开(公告)号：US07984766B2

公开(公告)日：2011-07-26

申请号：US12261104

申请日：2008-10-30

申请人： Donn J. Brown ,  B. Lyle Wilson ,  Earl B. Brookbank

发明人： Donn J. Brown ,  B. Lyle Wilson ,  Earl B. Brookbank

IPC分类号： E21B43/00 ,  E21B43/38

CPC分类号： E21B43/124

摘要： A gas extraction device for down hole oilfield applications utilizes the flow of the liquid, created by an artificial lift device, to produce conditions by which the gas is drawn into tubing. A venturi creates a low pressure area through a constricted section of the tubing. The pressure within the throat of the venturi drops the pressure in the casing. The device is axially adjusted to allow communication ports to a lower pressure area of the casing annulus. The lower pressure in the venturi draws the gas into the liquid stream and into the production tubing above the device. The gas is then transferred through the well head within the liquid stream.

摘要翻译： 用于井下油田应用的气体提取装置利用由人造提升装置产生的液体的流动来产生气体被吸入管道的条件。 文氏管通过管道的收缩部分产生低压区域。 文丘里管喉咙内的压力降低了套管内的压力。 该装置被轴向调节以允许连通端口到壳体环空的较低压力区域。 文氏管中的较低压力将气体吸入液体流中并进入设备上方的生产管道中。 然后将气体通过液体流中的井头转移。

公开(公告)号：US06899517B2

公开(公告)日：2005-05-31

申请号：US10290924

申请日：2002-11-08

申请人： Farral D. Gay ,  Terry W. Shafer ,  B. Lyle Wilson

发明人： Farral D. Gay ,  Terry W. Shafer ,  B. Lyle Wilson

IPC分类号： F04D1/06 ,  F04D29/04 ,  F04D29/041 ,  F04D29/62 ,  F01D3/00

CPC分类号： F04D29/0413 ,  F04D1/063 ,  F04D29/628 ,  Y10T29/49318

摘要： A method of installing an annular bearing element within a centrifugal pump utilizes a mechanical staking operation. The bearing element locates within a receptacle of a pump stage that is surrounded by a retaining wall. Once the bearing element is located within the retaining wall, the retaining wall is permanently deformed at various points against the bearing element. The bearing element, if of a hard wear resistant metal, may have flats for the circumferentially spaced apart deformations to locate within. The bearing element may be a thrust washer for transmitting downward thrust, or it may be a radial support bearing sleeve.

摘要翻译： 将环形轴承元件安装在离心泵内的方法利用机械铆接操作。 轴承元件位于由挡土墙包围的泵台的容器内。 一旦轴承元件位于挡土墙内，挡土墙将在与轴承元件相对的各个点处永久地变形。 轴承元件（如果是耐磨损金属）可以具有用于周向间隔开的变形的平面以定位在其内。 轴承元件可以是用于传递向下推力的止推垫圈，或者其可以是径向支撑轴承套筒。