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    Process and apparatus for filtration of oil and gas well fluids
    91.
    发明授权
    Process and apparatus for filtration of oil and gas well fluids 失效
    油气井过滤过程和设备

    公开(公告)号：US4560483A

    公开(公告)日：1985-12-24

    申请号：US606966

    申请日：1984-05-04

    Applicant: Theodore J. Warning ,  John A. Cairo, Jr.

    Inventor： Theodore J. Warning ,  John A. Cairo, Jr.

    IPC: B01D29/15 ,  B01D35/12 ,  B01D37/02

    CPC classification number: B01D37/02 ,  B01D29/15 ,  B01D35/12 ,  B01D2201/0438

    Abstract: A filter system using at least two filter vessels with a plurality of filter elements having absolute filtration capability. The filter elements use a nominal filter of diatomaceous earth, or a Perlite filter aid precoat layer, an outer wire layer, an absolute filter layer, a fine wire layer, a coarse wire layer, and a tube core for receiving filter flow therein. A pump is provided for injecting a predetermined amount of filter aid to a precoat tank containing clean fluid. The slurry of filter aid and clean fluid is then pumped into one of the filter vessels for precoating the filtering elements. The unfiltered fluid is then allowed to enter the vessel and be filtered through the filtering elements while virgin filter aid is continuously injected into the unfiltered fluids prior to the fluids entering the filter vessel. One filter vessel is converted to a cleaning mode while the second filter vessel continues filtering in response to a signal in a differential pressure element. The filter vessels are cleaned by backwashing from a pressurized fluid source. The filter vessels are alternately backwashed and coated with the precoating filter aid to provide for a continuous filtering operation.

    Abstract translation: 一种使用具有绝对过滤能力的多个过滤元件的至少两个过滤容器的过滤系统。 过滤元件使用硅藻土的标称过滤器，或者珍珠岩助滤剂预涂层，外部线层，绝对过滤层，细线层，粗线层和用于接收过滤器流的管芯。 提供了一种用于将预定量的助滤剂注入含有清洁流体的预涂罐的泵。 然后将助滤剂和清洁流体的浆液泵入一个过滤容器中以预涂过滤元件。 然后将未过滤的流体进入容器并通过过滤元件过滤，同时在流体进入过滤容器之前将原始助滤剂连续注入未过滤的流体中。 一个过滤器容器转换成清洁模式，而第二过滤器容器响应于压差元件中的信号继续过滤。 通过来自加压流体源的反洗来清洁过滤容器。 过滤容器交替反洗，涂上预涂助滤剂以提供连续的过滤操作。

    Method and apparatus for quick replacement of cartridge filters used in well fluid cleaning operations
    92.
    发明授权
    Method and apparatus for quick replacement of cartridge filters used in well fluid cleaning operations 失效
    快速更换液体清洗操作中使用的滤芯滤芯的方法和装置

    公开(公告)号：US4421170A

    公开(公告)日：1983-12-20

    申请号：US307974

    申请日：1981-10-02

    Applicant: Edward R. Swift, Jr. ,  Philip W. Schmuck

    Inventor： Edward R. Swift, Jr. ,  Philip W. Schmuck

    IPC: B01D29/00 ,  B01D27/00 ,  B01D27/08 ,  B01D29/10 ,  E21B43/00

    CPC classification number: B01D29/15 ,  B01D29/52 ,  B01D2201/0438

    Abstract: A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, with a filter adapter securable therein, the adapter having a passageway extending to the chambers. The adapter has a cylindrical housing having an enlarged cartridge positioning portion. A grooveway is defined on the adapter extending exteriorly therearound for securing one end of a cartridge filter. A cartridge filter is positionable on the adapter and provides a seal having an interiorly facing circumferentially extending lip for contact with the exterior of the cylindrical housing when the filter is located on the adapter, for sealingly securing the filter to the adapter.

    Abstract translation: 圆柱形壳体适于在地下井中接收和排出流体。 在优选的形式中，板被定位在气缸中，将其分离成第一和第二腔室。 过滤器适配器接收装置跨过板设置，其中安装有过滤器适配器，适配器具有延伸到室的通道。 适配器具有圆柱形壳体，其具有扩大的盒定位部分。 沟槽位于适配器外侧延伸，用于固定滤芯的一端。 筒式过滤器可定位在适配器上，并且当过滤器位于适配器上时，提供具有内部朝向周向延伸的唇缘的密封件，用于与圆柱形壳体的外部接触，以将过滤器密封地固定到适配器上。

    Apparatus and method
    93.
    发明授权
    Apparatus and method 失效
    装置及方法

    公开(公告)号：US4269707A

    公开(公告)日：1981-05-26

    申请号：US93245

    申请日：1979-11-13

    Applicant: Donald J. Butterworth ,  Christopher Halbfoster ,  Robert Loudon

    Inventor： Donald J. Butterworth ,  Christopher Halbfoster ,  Robert Loudon

    IPC: B01D29/11 ,  B01D37/02 ,  B01J47/12

    CPC classification number: B01J47/126 ,  B01D29/111 ,  B01D37/02 ,  B01D2201/0438 ,  B01D2201/188

    Abstract: A filter element having a perforated tubular core and a plurality of layers of strand material wound about the tubular core. The outermost layer has the ability to retain particles smaller than those retained by the innermost layer. The size range of particles retained by the outermost layer is from one to twenty-five microns and the size range of particles retained by the innermost layer is from twenty-five to one hundred microns.According to the method of invention, the filter element is used to purify liquids through the steps of precoating, delivering liquid through the filter, periodically backwashing the filter, and precoating the filter again.

    Abstract translation: 一种过滤元件，其具有穿孔的管状芯和缠绕在管状芯上的多层绞合材料。 最外层具有保留比最内层保留的颗粒小的能力。 由最外层保留的颗粒的尺寸范围为一至二十五微米，并且由最内层保留的颗粒的尺寸范围为二十五至一百微米。 根据本发明的方法，过滤元件用于通过预涂层，通过过滤器输送液体，周期性反洗过滤器和再次预涂过滤器的步骤来净化液体。

    Filter cartridge sealing means
    95.
    发明授权
    Filter cartridge sealing means 失效
    过滤盒密封方式

    公开(公告)号：US3405807A

    公开(公告)日：1968-10-15

    申请号：US64471067

    申请日：1967-06-08

    Applicant: UNION TANK CAR CO

    Inventor： BURKHARDT KENNETH J

    IPC: B01D29/15

    CPC classification number: B01D29/15 ,  B01D29/52 ,  B01D29/902 ,  B01D29/96 ,  B01D2201/0438 ,  B01D2201/34

    Abstract: 1,234,603. Filters. UNION TANK CAR CO. 7 June, 1968 [8 June, 1967], No. 27246/ 68. Addition to 1,066,546. Heading B1D. In a filter comprising a filter tank 12 with a division 26 and at least one filter element 30 held on a seat member 40 supported by and passing through the division member 26, the join between the element and the seating is sealed. In one arrangement, Fig. 2, a resilient gasket 90 is interposed between the end of the element 30 and the top of the seating 40 and a shield 44 is secured to the seating and surrounds the gasket. The element is pressed onto the gasket by a spring 60 acting through a nut 54 adjustable on a rod 53 carrying an extension 80 with a rivet 88 which engages beneath the end of the seating 40. In a modification, Fig. 4 (not shown), the gasket is replaced by an O-ring which is located in a groove of a sleeve embedded in the end of the element and bears on the inner surface of the seating.

    FILTER ASSEMBLY AND RELIEF VALVE OF SAME
    100.
    发明申请
    FILTER ASSEMBLY AND RELIEF VALVE OF SAME 审中-公开

    公开(公告)号：US20180304179A1

    公开(公告)日：2018-10-25

    申请号：US15957005

    申请日：2018-04-19

    Applicant: Fram Group IP LLC

    Inventor： Daniel Auxter ,  Timothy L. Memmer

    IPC: B01D35/147 ,  B01D39/18 ,  B01D29/33 ,  B01D35/153

    CPC classification number: B01D35/1475 ,  B01D29/333 ,  B01D35/153 ,  B01D39/18 ,  B01D2201/0438 ,  B01D2201/0461 ,  B01D2201/12 ,  B01D2201/167 ,  B01D2201/291 ,  B01D2201/34

    Abstract: A filter assembly comprises a housing open at one end, a filter element therein, and a plate at the open end enclosing the filter element within the housing. The filter assembly further includes a fluid flow control assembly disposed between an end of the filter element and the plate. The fluid flow control assembly includes a check valve and a relief valve seat upon which the check valve abuts to prevent flow of fluid through a by-pass passage. The check valve is held in a sealed position against the relief valve seat by a biasing member retained by the relief valve seat. The force of the biasing member is overcome when pressure in the fluid acting upon the check valve reaches or exceeds a certain level, causing the check valve to move away from the relief valve seat, and permitting the fluid to flow through the relief valve assembly to an outlet opening of the filter assembly, bypassing the filter element of the filter assembly.

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