Kondenseringsprosess for naturgass.

    公开(公告)号:NO20130998L

    公开(公告)日:2002-11-14

    申请号:NO20130998

    申请日:2013-07-17

    Applicant: STATOIL ASA

    Abstract: Oppfinnelsen gjelder kondensering av naturgass og spesielt tilpasset for bruk offshore. Oppfinnelsen omhandler et naturgasskondenseringsapparat hvor en hovedavkjølingskrets benytter som et kjølemiddel en gasstrøm hvor minst en del av denne er utvinnet fra naturgasskilden. Oppfinnelsen omhandler også en fremgangsmåte for å produsere kondensert naturgass hvor en ustabilisert kondensatproduktstrøm er produsert. Videre omhandler oppfinnelsen en fremgangsmåte for å transportere naturgassprodukter hvor det fremskaffes en ustabilisert kondensatproduktstrøm, og deretter transport av den nevnte strømmen.

    33.
    发明专利
    未知

    公开(公告)号:BR0016623A

    公开(公告)日:2002-09-03

    申请号:BR0016623

    申请日:2000-12-22

    Applicant: STATOIL ASA

    Abstract: A system for supplying cooling water to a process on board a floating vessel for the production of hydrocarbons, wherein the vessel (1) is anchored by means of a bottom-anchored turning unit (20) mounted in a receiving space (7) in the hull (34) of the vessel and allowing turning of the vessel (1) about the turning unit, and wherein the turning unit (20) supports a swivel unit (24) for the transfer of hydrocarbons from production risers (28) extending between the seabed and the turning unit (20), the system comprising a conduit means (30) depending from the vessel (1) to a depth for taking in cooled sea water, and a pump means (44) for pumping of the sea water from the conduit to a place of use for the process. The turning unit (20) is designed as a seawater swivel, the unit being provided with one or more passages (29) for receiving upper end portions of respective seawater risers (30) constituting the conduit means, and with a means for transferring sea water from the upper end portions of the risers (30) to an annulus (31) arranged at the boundary surface between mutually movable parts (21, 22) of the turning unit (20) or between the tuning unit (20) and the vessel hull (34), and communicating with one or more passages (41) arranged in the vessel hull and leading to said place of use, a seawater sealing means (37, 39) being arranged on each side of the annulus (31).

    Cooling water system
    34.
    发明专利

    公开(公告)号:GB2372236A

    公开(公告)日:2002-08-21

    申请号:GB0212316

    申请日:2000-12-22

    Applicant: STATOIL ASA

    Abstract: A system for supplying cooling water to a process on board a floating vessel for the production of hydrocarbons, wherein the vessel (1) is anchored by means of a bottom-anchored turning unit (20) mounted in a receiving space (7) in the hull (34) of the vessel and allowing turning of the vessel (1) about the turning unit, and wherein the turning unit (20) supports a swivel unit (24) for the transfer of hydrocarbons from production risers (28) extending between the seabed and the turning unit (20), the system comprising a conduit means (30) depending from the vessel (1) to a depth for taking in cooled sea water, and a pump means (44) for pumping of the sea water from the conduit to a place of use for the process. The turning unit (20) is designed as a seawater swivel, the unit being provided with one or more passages (29) for receiving upper end portions of respective seawater risers (30) constituting the conduit means, and with a means for transferring sea water from the upper end portions of the risers (30) to an annulus (31) arranged at the boundary surface between mutually movable parts (21, 22) of the turning unit (20) or between the turning unit (20) and the vessel hull (34), and communicating with one or more passages (41) arranged in the vessel hull and leading to said place of use, a seawater sealing means (37, 39) being arranged on each side of the annulus (31).

    COOLING WATER SYSTEM
    35.
    发明专利

    公开(公告)号:CA2395361A1

    公开(公告)日:2001-07-05

    申请号:CA2395361

    申请日:2000-12-22

    Applicant: STATOIL ASA

    Abstract: A system for supplying cooling water to a process on board a floating vessel for the production of hydrocarbons, wherein the vessel (1) is anchored by means of a bottom-anchored turning unit (20) mounted in a receiving space (7 ) in the hull (34) of the vessel and allowing turning of the vessel (1) about the turning unit, and wherein the turning unit (20) supports a swivel unit (24) for the transfer of hydrocarbons from production risers (28) extending between the seabed and the turning unit (20), the system comprising a condui t means (30) depending from the vessel (1) to a depth for taking in cooled sea water, and a pump means (44) for pumping of the sea water from the conduit t o a place of use for the process. The turning unit (20) is designed as a seawater swivel, the unit being provided with one or more passages (29) for receiving upper end portions of respective seawater risers (30) constituting the conduit means, and with a means for transferring sea water from the uppe r end portions of the risers (30) to an annulus (31) arranged at the boundary surface between mutually movable parts (21, 22) of the turning unit (20) or between the turning unit (20) and the vessel hull (34), and communicating wi th one or more passages (41) arranged in the vessel hull and leading to said place of use,a seawater sealing means (37, 39) being arranged on each side o f the annulus (31).

    A method of recovering a hydrocarbon mixture from a subterranean formation

    公开(公告)号:GB2481594A

    公开(公告)日:2012-01-04

    申请号:GB201010855

    申请日:2010-06-28

    Applicant: STATOIL ASA

    Inventor: PAUROLA PENTTI

    Abstract: A method of recovering a hydrocarbon mixture from a subterranean formation comprises (i) injecting an oxygen-rich gas into said formation; (ii) combusting said oxygen-rich gas in said formation thereby heating and reducing the viscosity of said hydrocarbon mixture and generating CO2-rich gas; and (iii) recovering said heated hydrocarbon. A further step (iv) may comprise storing at least a portion of CO2 from said CO2-rich gas in a formation.

    40.
    发明专利
    未知

    公开(公告)号:DE10233410A1

    公开(公告)日:2004-02-12

    申请号:DE10233410

    申请日:2002-07-23

    Abstract: A process for liquefying a flow of natural gas with simultaneous recovery of a C 3 /C 4 -rich fraction is described, whereby the liquefaction of the flow of natural gas is carried out in heat exchange for at least one refrigerant and/or mixed refrigerant flow, and the flow of natural gas that is to be liquefied, after precooling, is subjected to a rectifying column, in which higher hydrocarbons are separated from the flow of natural gas, and then is subjected to further cooling and liquefaction, whereby a C 2+ -rich fraction that is recovered in the subsequent cooling of the flow of natural gas is fed to the rectifying column as a reflux liquid. According to the invention, a C 4 /C 5 -rich fraction ( 20, 35 ) is fed directly and/or indirectly to rectifying column (T 1 ) as an additional reflux liquid, whereby the feed point of the C 4 /C 5 -rich [fraction ( 20, 35 ) is located at the top of rectifying column (T 1 ) or is identical to the feed point of the C 2+ -rich fraction ( 5 ).]

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