公开(公告)号：WO2017120135A1

公开(公告)日：2017-07-13

申请号：PCT/US2017/012027

申请日：2017-01-03

Applicant: VALVEWORKS USA, INC.

Inventor： ROBERTS, Todd

IPC: F16K3/02 ,  F16K3/22 ,  F16K3/30

CPC classification number: F16K3/26 ,  E21B34/02 ,  E21B43/26 ,  F16K3/0236 ,  F16K3/314 ,  F16K25/04 ,  F16K27/041 ,  F16K31/508 ,  F16K31/523 ,  F16K39/04

Abstract: A gate valve adapted for use in oil and gas operations, such as, for example, fracturing or gravel-packing operations. In an exemplary embodiment, the gate valve includes a valve body, which defines an internal region; a first fluid bore intersecting the internal region and defining a first interior surface in the valve body; and a first annular recess formed in the first interior surface and adjoining the internal region. A first seat element defines a second fluid bore and extends within the first annular recess. A first protective sleeve extends between respective portions of the first seat element and the valve body. The first and second fluid bores have first and second full-bore inside diameters, respectively. The first protective sleeve has a third full-bore inside diameter that is substantially equal to each of the first and second full-bore inside diameters.

Abstract translation: 适用于油气操作中的闸阀，例如压裂或砾石充填操作。 在示例性实施例中，闸阀包括限定内部区域的阀体; 第一流体孔，其与所述内部区域相交并且在所述阀体中限定第一内表面; 以及形成在第一内表面中并邻接内部区域的第一环形凹部。 第一座元件限定第二流体孔并且在第一环形凹部内延伸。 第一保护套在第一座位元件和阀体的相应部分之间延伸。 第一和第二流体孔分别具有第一和第二全孔内径。 第一保护套筒具有第三全孔内径，其基本上等于第一和第二全孔内径中的每一个。