NO980815L - Filtersammensetning - Google Patents
FiltersammensetningInfo
- 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
Links
- 229910000734 martensite Inorganic materials 0.000 abstract 2
- 238000003466 welding Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
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.
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 (no) | 1998-02-26 |
NO980815L true NO980815L (no) | 1998-03-24 |
Family
ID=26671120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO980815A NO980815L (no) | 1995-08-30 | 1998-02-26 | Filtersammensetning |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0847300A1 (no) |
AU (1) | AU6901896A (no) |
NO (1) | NO980815L (no) |
WO (1) | WO1997007870A1 (no) |
Family Cites Families (3)
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 |
-
1996
- 1996-08-30 WO PCT/US1996/013723 patent/WO1997007870A1/en not_active Application Discontinuation
- 1996-08-30 EP EP96929738A patent/EP0847300A1/en not_active Withdrawn
- 1996-08-30 AU AU69018/96A patent/AU6901896A/en not_active Abandoned
-
1998
- 1998-02-26 NO NO980815A patent/NO980815L/no unknown
Also Published As
Publication number | Publication date |
---|---|
EP0847300A1 (en) | 1998-06-17 |
NO980815D0 (no) | 1998-02-26 |
AU6901896A (en) | 1997-03-19 |
WO1997007870A1 (en) | 1997-03-06 |
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