公开(公告)号：US4386653A

公开(公告)日：1983-06-07

申请号：US346639

申请日：1982-02-08

申请人： Eldon L. Drake

发明人： Eldon L. Drake

IPC分类号： F04D7/02 ,  E21B43/00 ,  E21B43/12 ,  F04D9/00 ,  F04D13/10 ,  F04D29/66

CPC分类号： E21B43/121 ,  F04D13/10 ,  F04D9/001 ,  Y10S415/901

摘要： An anti-gas locking apparatus for a downhole pump comprises a sleeve disposed below the pump and in fluid communication with the pump inlet, a housing disposed about the sleeve and fluidly communicating at its upper end with the well in which the pump is disposed, and a cross-over assembly communicating lower portions of the housing with the lower end of the sleeve. The cross-over assembly comprises a cross-over diffuser including a jacket member, the upper end of which mates with the lower end of the sleeve, and a dome member within the jacket member. Apertures are formed through the jacket member and dome member and webs extend between these members to form inlet passages into the interior of the dome member from the annulus between the housing and the sleeve and outlet passages about the dome member to the sleeve. An impeller is disposed within the jacket member below the dome member. Disclosed is an improved geometry of the cross-over diffuser in which webs forming the walls of the inlet and outlet passage spiral about the dome member with ever increasing vertical slope to a substantially vertical disposition and the diffuser is provided with similarly shaped flow shaping vanes within the outlet passages. The impeller is provided with vanes that increase in vertical dimension fromm the center of the impeller toward the periphery thereof so that, with the improved geometry of the diffuser, turbulence of well fluids passing through the diffuser is avoided to prevent evolution of gases in the diffuser.

摘要翻译： 用于井下泵的防气体锁定装置包括设置在泵下方并与泵入口流体连通的套筒，围绕套筒设置的壳体并且在其上端处与泵设置在其中的流体连通， 交叉组件将壳体的下部与套筒的下端连通。 交叉组件包括交叉扩散器，该交叉扩散器包括其上端与套筒的下端配合的护套构件和套管构件内的圆顶构件。 孔通过护套构件和圆顶构件形成，并且腹板在这些构件之间延伸，以形成从壳体和套筒之间的环空以及围绕圆顶构件到套筒的出口通道进入圆顶构件内部的入口通道。 叶轮设置在穹顶构件下方的护套构件内。 公开了一种改进的交叉扩散器的几何形状，其中形成入口和出口通道的壁的腹板围绕穹顶构件螺旋地以越来越大的垂直倾斜向基本垂直的配置旋转，并且扩散器设置有类似形状的流动成形叶片， 出口通道。 叶轮设有叶片，叶片的垂直尺寸从叶轮的中心向其周边增加，以便随着扩散器的几何形状的改进，避免了通过扩散器的井液的湍流，以防止扩散器中气体的逸出 。

公开(公告)号：US4377763A

公开(公告)日：1983-03-22

申请号：US245615

申请日：1981-03-19

申请人： Eldon L. Drake

发明人： Eldon L. Drake

IPC分类号： F04D13/10 ,  H02K5/132 ,  H02K5/12

CPC分类号： F04D13/10 ,  H02K5/132

摘要： A seal section for connecting a downhole motor and pump used to remove fluids from an oil well comprising a plurality of balance chambers which are vertically stacked and fluidly interconnected in a serial manner such that a fluid path between the well and the motor extends through a series of balance chambers. Each balance chamber is comprised of two concentric, open ended tubes disposed within a tubular casing member and the tubes of each balance chamber are mounted on different ones of seal heads which are spaced vertically along the seal section to delimit the ends of the balance chambers. Each seal head intermediate the seal heads disposed at upper and lower ends of the seal section is provided with one upperwardly extending tube and one downwardly extending tube such that any selected number of balance chambers can be formed by selecting the number of intermediate seal heads to be incorporated into the seal section.

摘要翻译： 一种密封部分，用于连接用于从油井中移出流体的井下电机和泵，其包括多个平衡室，所述多个平衡室以串联方式垂直堆叠并流体互连，使得井与电动机之间的流体路径延伸通过一系列 的平衡室。 每个平衡室由设置在管状壳体构件内的两个同心开放的管组成，并且每个平衡室的管安装在沿密封部分垂直间隔的不同的密封头上，以限定平衡室的端部。 设置在密封部分的上端和下端处的密封头之间的每个密封头设置有一个向上延伸的管和一个向下延伸的管，使得可以通过选择中间密封头的数量来形成任何选定数量的平衡室 并入密封部分。

公开(公告)号：US4511307A

公开(公告)日：1985-04-16

申请号：US529058

申请日：1983-09-02

申请人： Eldon L. Drake

发明人： Eldon L. Drake

IPC分类号： F04D29/04 ,  F04D29/02

CPC分类号： F04D29/041

摘要： The centrifugal pump is of the submersible type and is useful in pumping sand laden fluids. The pump includes a rotatable impeller and fixed diffuser and has an improved bearing that comprises an annular thrust member that is constructed from material having a hardness greater than the hardness of sand. The thrust member is attached to the impeller and has a bearing surface thereon. A second annular bearing member, which is also constructed from material having hardness greater than sand, is attached to the diffuser and has a bearing surface thereon disposed in juxtaposition with the bearing surface on the thrust member.

摘要翻译： 离心泵是潜水型，可用于泵送含沙液体。 泵包括可旋转的叶轮和固定的扩散器，并且具有改进的轴承，其包括由硬度大于砂的硬度的材料构成的环形推力构件。 推力构件附接到叶轮并且在其上具有支承表面。 第二环形轴承构件也由硬度大于砂的材料构成，附接到扩散器，并且在其上具有一个支承表面，该轴承表面与推力构件上的支承表面并置设置。

公开(公告)号：US3568771A

公开(公告)日：1971-03-09

申请号：US3568771D

申请日：1969-04-17

申请人： BORG WARNER ,  PAN AMERICAN PETROLEUM CORP ,  RENIC P VINCENT ,  ELDON L DRAKE

发明人： VINCENT RENIC P ,  DRAKE ELDON L

IPC分类号： E21B43/12 ,  F04D13/10 ,  F04D15/00 ,  F04D31/00 ,  E21B43/00 ,  E21B47/06 ,  F04D27/00

CPC分类号： F04D31/00 ,  E21B43/128 ,  F04D13/10 ,  F04D15/0066

摘要： Many oil wells, especially in their latter stage of primary or secondary recovery, produce foamy crude oil. This crude oil will vary from mostly liquid to mostly foam. Pumping such a fluid is rather difficult. The main difficulty is due to reduced bulk density of the fluids. Thus, a constant r.p.m. submersible centrifugal pump has very low efficiency. This invention controls the r.p.m. as a function of the bulk density of the crude in the well bore. Various means of obtaining this are given.