NO980815L - filter Composition - Google Patents

filter Composition

Info

Publication number
NO980815L
NO980815L NO980815A NO980815A NO980815L NO 980815 L NO980815 L NO 980815L NO 980815 A NO980815 A NO 980815A NO 980815 A NO980815 A NO 980815A NO 980815 L NO980815 L NO 980815L
Authority
NO
Norway
Prior art keywords
filter
support member
inner support
filter composition
martensite
Prior art date
Application number
NO980815A
Other languages
Norwegian (no)
Other versions
NO980815D0 (en
Inventor
Michael B Whitlock
Original Assignee
Pall Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pall Corp filed Critical Pall Corp
Publication of NO980815D0 publication Critical patent/NO980815D0/en
Publication of NO980815L publication Critical patent/NO980815L/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners
    • E21B43/082—Screens comprising porous materials, e.g. prepacked screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B01D29/216—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets with wound sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Filtering Materials (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Et filter for underjordiske miljøer har en indre støttedel (10; 72), et filterlegeme (12) inneholdende et filtermedium anbragt rundt den indre støttedelen og, hvor minst en endehylse (14,16; 76) er sveiset fast til den indre støttedelen og forbundet til en lengde- vis ende av filterlegemet. Sveisesømmen (70) er hovedsakelig fri for martensitt. Det blir også beskrevet enf remgangsmåte for sveising av et filter omfattende sveisesøm som er hovedsakelig fri for martensitt.An underground environment filter has an inner support member (10; 72), a filter body (12) containing a filter medium disposed around the inner support member and, where at least one end sleeve (14, 16; 76) is welded to the inner support member and connected. to a longitudinal end of the filter body. The weld seam (70) is mainly free of martensite. Also described is a method of welding a filter comprising welding seams which is substantially martensite free.

NO980815A 1995-08-30 1998-02-26 filter Composition NO980815L (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US298795P 1995-08-30 1995-08-30
US1102196P 1996-02-01 1996-02-01
PCT/US1996/013723 WO1997007870A1 (en) 1995-08-30 1996-08-30 Filter assembly

Publications (2)

Publication Number Publication Date
NO980815D0 NO980815D0 (en) 1998-02-26
NO980815L true NO980815L (en) 1998-03-24

Family

ID=26671120

Family Applications (1)

Application Number Title Priority Date Filing Date
NO980815A NO980815L (en) 1995-08-30 1998-02-26 filter Composition

Country Status (4)

Country Link
EP (1) EP0847300A1 (en)
AU (1) AU6901896A (en)
NO (1) NO980815L (en)
WO (1) WO1997007870A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378840A (en) * 1981-04-28 1983-04-05 Uop Inc. Bimetallic well screen use in injection wells and method of making same
US4613369A (en) * 1984-06-27 1986-09-23 Pall Corporation Porous metal article and method of making
US5318119A (en) * 1992-08-03 1994-06-07 Halliburton Company Method and apparatus for attaching well screens to base pipe

Also Published As

Publication number Publication date
AU6901896A (en) 1997-03-19
WO1997007870A1 (en) 1997-03-06
EP0847300A1 (en) 1998-06-17
NO980815D0 (en) 1998-02-26

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