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    Well casing assembly with erosion protection for inner screen
    231.
    发明授权
    Well casing assembly with erosion protection for inner screen 失效
    外壳组件，内屏防腐保护

    公开(公告)号：US5881809A

    公开(公告)日：1999-03-16

    申请号：US926308

    申请日：1997-09-05

    Applicant: George A. Gillespie ,  Stephen A. Uban

    Inventor： George A. Gillespie ,  Stephen A. Uban

    IPC: B01D29/15 ,  B01D46/24 ,  E21B43/08

    CPC classification number: B01D46/0024 ,  B01D29/15 ,  B01D46/0045 ,  B01D46/2411 ,  E21B43/088 ,  B01D2201/0407 ,  B01D2201/313

    Abstract: Well casing assembly for use in oil and gas wells, and especially deviated or horizontal wells, has an inner pipe member with threaded ends which permit a number of casing assemblies to be joined in a string. The inner pipe has a series of perforations along a segment of its length which are covered by an elongated screen member which prevents the passage of sand particles. A concentric outer protective cover member is devoid of perforations in regions which are radially opposite the inner screen to prevent damage to the screen. One or more perforated segments of the outer member are axially spaced from the screen member so that inward flow from a formation will have its energy and velocity reduced before it reaches the screen, thereby minimizing erosion of the screen surface. If desired, perforated flow control devices such as annular rings can be located between the inner pipe and outer member at the ends of the screen segment to allow a more uniform flow to the screen, and thus further reduce erosion.

    Abstract translation: 用于油气井，尤其是偏斜或水平井的井筒组件具有带有螺纹端部的内管构件，其允许多个壳体组件以串连接。 内管具有沿其长度的段的一系列穿孔，其被细长的筛网构件覆盖，防止砂粒通过。 同心的外保护罩构件在与内屏幕径向相对的区域中没有穿孔，以防止损坏屏幕。 外部构件的一个或多个穿孔区段与屏幕构件轴向间隔开，使得来自地层的向内流动在其到达屏幕之前将具有其能量和速度降低，从而最小化屏幕表面的侵蚀。 如果需要，诸如环形圈的穿孔流量控制装置可以位于筛管段末端处的内管和外部构件之间，以允许更均匀地流向筛网，从而进一步减少侵蚀。

    Wire mesh filter
    232.
    发明授权
    Wire mesh filter 失效

    公开(公告)号：US5849188A

    公开(公告)日：1998-12-15

    申请号：US862889

    申请日：1997-05-23

    Applicant: Benn Arild Voll ,  Bennett M. Richard ,  Allen Dale Gabrysch

    Inventor： Benn Arild Voll ,  Bennett M. Richard ,  Allen Dale Gabrysch

    IPC: B01D29/15 ,  B01D39/12 ,  B01D46/24 ,  E21B43/08

    CPC classification number: B01D29/15 ,  B01D39/12 ,  B01D46/2411 ,  E21B43/084 ,  E21B43/088 ,  B01D2201/0407 ,  B01D2201/313 ,  Y10T29/496 ,  Y10T29/49604

    Abstract: A filter is provided which combines a woven wire mesh over a supporting body. The supporting body is typically a metal perforated tube which provides fluid communication between the well bore and the production equipment string. The woven wire mesh acts as a filter to prevent the influx of sand particles, provides openings oriented at various angles relative to its surface, so that some area is available for fluid entry even when particulate matter is lodged on the surface above an opening, provides interior channels that allow fluid to travel from one location on the mesh surface to another location over an opening into the supporting body, and does not provide "straight-through" openings, thus forcing the fluid to make multiple turns to pass through the mesh, thereby dissipating the fluid's energy and increases the mesh's erosion resistance. When particulate matter accumulates on the mesh's surface, the resulting particle cake remains porous, heightening the filter's resistance to plugging.

    Filter with over-laid pleats in intimate contact
    236.
    发明授权
    Filter with over-laid pleats in intimate contact 失效
    过滤与过度褶皱紧密接触

    公开(公告)号：US5543047A

    公开(公告)日：1996-08-06

    申请号：US170934

    申请日：1993-12-21

    Applicant: Richard C. Stoyell ,  Kenneth M. Williamson ,  Scott D. Hopkins ,  Stephen A. Geibel ,  Terry L. Wolff

    Inventor： Richard C. Stoyell ,  Kenneth M. Williamson ,  Scott D. Hopkins ,  Stephen A. Geibel ,  Terry L. Wolff

    IPC: B01D27/06 ,  B01D29/07 ,  B01D29/085 ,  B01D29/11

    CPC classification number: B01D29/111 ,  B01D2201/0407 ,  Y10S493/941 ,  Y10T156/1038

    Abstract: A filter includes a cylindrical filter element having a longitudinal axis, first and second end surfaces, and a plurality of longitudinal pleats. Each of the pleats has a pair of legs with first and second surfaces. The pleats are in a laid-over state in which the first surface of each leg is in intimate contact with the first surface of an adjoining leg and the second surface of each leg is in intimate contact with the second surface of an adjoining leg over substantially the entire height of each leg and over a continuous region extending for at least approximately 50% of the axial length of the filter element. An impervious end cap is connected to the first end surface of the filter element.

    Abstract translation: 过滤器包括具有纵向轴线的圆柱形过滤器元件，第一和第二端面以及多个纵向褶皱。 每个褶都具有一对具有第一和第二表面的腿。 褶皱处于放置状态，其中每条腿的第一表面与邻接的腿的第一表面紧密接触，并且每条腿的第二表面基本上与相邻腿的第二表面紧密接触 每个支腿的整个高度以及延伸至少大约50％的过滤元件的轴向长度的连续区域。 不透水的端盖连接到过滤元件的第一端面。

    Filter and filtration method
    237.
    发明授权
    Filter and filtration method 失效
    过滤和过滤方法

    公开(公告)号：US5275743A

    公开(公告)日：1994-01-04

    申请号：US804370

    申请日：1991-12-10

    Applicant: John D. Miller ,  Richard C. Stoyell ,  James T. Connors, Jr.

    Inventor： John D. Miller ,  Richard C. Stoyell ,  James T. Connors, Jr.

    IPC: B01D39/14 ,  B01D29/21 ,  B01D39/08 ,  B01D27/06

    CPC classification number: B01D39/083 ,  B01D29/21 ,  B01D2201/0407 ,  B01D2239/0618

    Abstract: A filter for filtering a highly viscous material comprises a filter element including a glass fiber filter medium, preferably resin-bonded, having upstream and downstream sides and a polymeric mesh situated on at least one of the upstream and downstream sides of the filter medium, and preferably on both sides of the filer medium. A non-woven sheet, such as a cellulose paper sheet, may be disposed between the downstream side of the filter medium and the downstream polymeric mesh. The filter element is typically cylindrical and longitudinally pleated to maximize the filtration area in as small a volume as possible. Also provided is a method of filtering a highly viscous material, particularly magnetic coating mixes.

    Abstract translation: 用于过滤高粘度材料的过滤器包括过滤元件，其包括玻璃纤维过滤介质，优选树脂粘合，具有上游侧和下游侧以及位于过滤介质的上游侧和下游侧中的至少一个上的聚合物网，以及 优选在滤光器介质的两侧。 可以在过滤介质的下游侧和下游聚合物网之间设置无纺布片材，例如纤维素纸片。 过滤元件通常是圆柱形的并且纵向打褶，以尽可能小的体积使过滤面积最大化。 还提供了一种过滤高粘度材料，特别是磁性涂料混合物的方法。

    Filter cartridge with a connector seal
    239.
    发明授权
    Filter cartridge with a connector seal 失效
    滤芯带有连接器密封

    公开(公告)号：US4609465A

    公开(公告)日：1986-09-02

    申请号：US612424

    申请日：1984-05-21

    Applicant: John D. Miller

    Inventor： John D. Miller

    IPC: B01D29/11 ,  B01D63/06 ,  B01D27/08

    CPC classification number: B01D63/067 ,  B01D29/111 ,  B01D2201/0407

    Abstract: The disclosure describes a filter cartridge for removing particulates from a destructive fluid such as a hot acid or solvent. The filter cartridge comprises a cylindrical filter arrangement having a generally annular cross section and including a cylindrical, microporous fluoropolymeric filter for removing the particulate contaminants as the corrosive fluid flows through the filter. The filter arrangement also includes a cylindrical fluoropolymeric structure coaxially disposed adjacent the filter for supporting the filter. The filter cartridge further includes first and second impervious fluoropolymeric end caps concentrically disposed adjacent the first and second ends, respectively, of the filter arrangement. The first end cap includes a central aperture communicating with the center of the filter arrangement.

    Abstract translation: 本公开描述了一种用于从破坏性流体例如热酸或溶剂去除微粒的滤筒。 滤筒包括具有大致环形横截面并且包括圆柱形微孔含氟聚合物过滤器的圆柱形过滤器装置，用于当腐蚀性流体流过过滤器时除去颗粒污染物。 该过滤器装置还包括一个与过滤器相邻同轴设置的圆柱形氟聚合物结构，用于支撑过滤器。 过滤器滤芯还包括分别与过滤器装置的第一和第二端相邻同心设置的第一和第二不可渗透的含氟聚合物端盖。 第一端盖包括与过滤器装置的中心连通的中心孔。

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