公开(公告)号：WO1998005847A1

公开(公告)日：1998-02-12

申请号：PCT/US1997015205

申请日：1997-08-08

Applicant: PUROLATOR PRODUCTS COMPANY

Inventor： PUROLATOR PRODUCTS COMPANY ,  SIMONE, Anthony, D. ,  PANCIERA, Michael, J.

IPC: E21B43/08

CPC classification number: E21B43/084 ,  B01D29/111 ,  B01D29/15 ,  B01D29/58 ,  B01D2201/0407 ,  B01D2201/188 ,  E21B43/082

Abstract: A particle control screen assembly for a perforated pipe (22) used in a well, a sand filter system, and methods of making same are provided. The screen assembly (21) includes a woven mesh filter media (27) disposed about the perforated pipe (22), and a protective wrapper (28) disposed about the filter media (27). The protective wrapper (28) comprises an outer perforated layer (30) and an inner layer (29, 43) that is disposed between the outer layer (30) and the filter media (27). A surface (36) of the inner layer (29, 43) that faces the outer perforated layer (30) has a non-smooth contour (38), with this surface (36) of the inner layer (29, 43) having portions in direct contact with an inner surface of the outer layer (30). The inner layer (29, 43) is provided with apertures that are disposed in such a way that fluid cannot flow from the outer surface of the outer perforated layer (30) directly radially both through holes (35) of the outer layer and through the apertures of the inner layer (29, 43).

Abstract translation: 提供了一种用于井中的多孔管（22）的颗粒控制筛组件，砂过滤器系统及其制造方法。 筛网组件（21）包括围绕多孔管（22）设置的织网过滤介质（27）和围绕过滤介质（27）设置的保护性包裹物（28）。 保护性包装物（28）包括外部穿孔层（30）和设置在外层（30）和过滤介质（27）之间的内层（29,43）。 所述内层（29,43）面向所述外多孔层（30）的表面（36）具有非平滑轮廓（38），所述内层（29,43）的所述表面（36）具有部分 与外层（30）的内​​表面直接接触。 内层（29,43）设置有孔，所述孔以这样的方式设置，使得流体不能从外部穿孔层（30）的外表面直接径向地穿过外层的通孔（35），并通过 内层（29,43）的孔。

公开(公告)号：EP0917616A1

公开(公告)日：1999-05-26

申请号：EP97939643.0

申请日：1997-08-08

Applicant: Purolator Products Company

Inventor： SIMONE, Anthony, D. ,  PANCIERA, Michael, J.

IPC: B01D29 ,  E21B43

CPC classification number: E21B43/084 ,  B01D29/111 ,  B01D29/15 ,  B01D29/58 ,  B01D2201/0407 ,  B01D2201/188 ,  E21B43/082

Abstract: A particle control screen assembly for a perforated pipe used in a well, a sand filter system, and methods of making same are provided. The screen assembly includes a woven mesh filter media disposed about the perforated pipe, and a protective wrapper disposed about the filter media. The protective wrapper comprises an outer perforated layer and an inner layer that is disposed between the outer layer and the filter media. A surface of the inner layer that faces the outer perforated layer has a non-smooth contour, with this surface of the inner layer having portions in direct contact with an inner surface of the outer layer. The inner layer is provided with apertures that are disposed in such a way that fluid cannot flow from the outer surface of the outer perforated layer directly radially both through holes of the outer layer and through the apertures of the inner layer.