NO20043201L - Oppsprekkingsportkrage for bronntetningssystem - Google Patents

Oppsprekkingsportkrage for bronntetningssystem

Info

Publication number
NO20043201L
NO20043201L NO20043201A NO20043201A NO20043201L NO 20043201 L NO20043201 L NO 20043201L NO 20043201 A NO20043201 A NO 20043201A NO 20043201 A NO20043201 A NO 20043201A NO 20043201 L NO20043201 L NO 20043201L
Authority
NO
Norway
Prior art keywords
collar
ports
lower sealing
fluid
wellbore
Prior art date
Application number
NO20043201A
Other languages
English (en)
Other versions
NO337894B1 (no
Inventor
Gary Duron Ingram
Corey E Hoffmann
Richard L Giroux
Original Assignee
Weatherford Lamb
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 Weatherford Lamb filed Critical Weatherford Lamb
Publication of NO20043201L publication Critical patent/NO20043201L/no
Publication of NO337894B1 publication Critical patent/NO337894B1/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/124—Units with longitudinally-spaced plugs for isolating the intermediate space
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures

Abstract

En krage (500) for injeksjon av fluid som for eksempel formasjonsbehandlingsfluid, i et brønnhull, og en fremgangsmåte for bruk av samme. Kragen anbringes mellom det øvre og nedre tetningselement (40,41) i et tetningssystem under behandlingen av et interesseområde i et brønnhull. Kragen omfatter først en innvendig stamme (550) som i all vesentlighet løper langs hele kragens lengde. Den innvendige boring i kragen står i fluidforbindelse med ringrommet mellom kragen og den omgivende, perforerte f6ring ved hjelp av et sett med aktiveringsporter (552). Et andre sett med porter (554), kjent som oppsprekkingsporter, er plassert inne i stammen. I henhold til ett aspekt av oppfinnelsen omfatter kragen videre et rørhus som i alt vesentlig tetter oppsprekkingsportene i en første stilling og glir langs utsiden av stammen for å blott-legge oppsprekkingsportene i en andre stilling. I drift settes det øvre og nedre tetningselement ved et første fluidtrykknivå. Ved anvendelse av et andre, høyere fluidtrykknivå beveger det øvre og nedre tetningselement seg lenger fra hverandre i samsvar med en beregnet slaglengde, noe som så blottlegger oppsprekkingsportene.
NO20043201A 2002-02-11 2004-07-27 Oppsprekkingsportkrage for brønntetningssystem og en fremgangsmåte for bruk av kragen NO337894B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/073,685 US6695057B2 (en) 2001-05-15 2002-02-11 Fracturing port collar for wellbore pack-off system, and method for using same
PCT/GB2003/000509 WO2003069117A1 (en) 2002-02-11 2003-02-05 Fracturing port collar for wellbore pack-off system

Publications (2)

Publication Number Publication Date
NO20043201L true NO20043201L (no) 2004-11-01
NO337894B1 NO337894B1 (no) 2016-07-04

Family

ID=27732344

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20043201A NO337894B1 (no) 2002-02-11 2004-07-27 Oppsprekkingsportkrage for brønntetningssystem og en fremgangsmåte for bruk av kragen

Country Status (6)

Country Link
US (1) US6695057B2 (no)
AU (1) AU2003244986A1 (no)
CA (1) CA2474518C (no)
GB (1) GB2401628B (no)
NO (1) NO337894B1 (no)
WO (1) WO2003069117A1 (no)

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Also Published As

Publication number Publication date
AU2003244986A1 (en) 2003-09-04
NO337894B1 (no) 2016-07-04
GB0416306D0 (en) 2004-08-25
US6695057B2 (en) 2004-02-24
US20020195248A1 (en) 2002-12-26
WO2003069117A1 (en) 2003-08-21
GB2401628A (en) 2004-11-17
CA2474518A1 (en) 2003-08-21
GB2401628B (en) 2005-07-20
CA2474518C (en) 2008-09-30

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: WEATHERFORD TECHNOLOGY HOLDINGS, US

MK1K Patent expired