MULTI-CYCLE CIRCULATING TOOL
    11.
    发明专利

    公开(公告)号:CA2877369C

    公开(公告)日:2017-07-25

    申请号:CA2877369

    申请日:2013-07-10

    Inventor: WILSON TIMOTHY L

    Abstract: A method and apparatus for circulating fluid in a wellbore includes a bottom sub 130 having a bottom sub port and a mandrel 35, wherein the mandrel 35 substantially forms an inner bore of the circulating tool and includes a mandrel port. The circulating tool may also include an activation piston 46 that is movable in a first direction and a port piston 64 movable in a second direction when the activation piston 46 moves in the first direction. The circulating tool may further include an inner sleeve 90 coupled to the port piston 64 and movable with the port piston, the inner sleeve 90 having an inner sleeve port in selective communication with the mandrel port. When the inner sleeve port is in communication with the mandrel port at least partially, circulating fluid is allowed to flow through the bottom sub port to the wellbore.

    INTERNAL RISER ROTATING CONTROL HEAD

    公开(公告)号:CA2858555C

    公开(公告)日:2016-09-06

    申请号:CA2858555

    申请日:2003-10-27

    Abstract: A system and method provides a holding member for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

    INTERNAL RISER ROTATING CONTROL HEAD

    公开(公告)号:CA2446984C

    公开(公告)日:2014-12-16

    申请号:CA2446984

    申请日:2003-10-27

    Abstract: A system and method provides a holding member for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

    Nedihullsverktøy og fremgangsmåte ved styring av samme

    公开(公告)号:NO334910B1

    公开(公告)日:2014-07-07

    申请号:NO20041391

    申请日:2004-04-05

    Abstract: Den foreliggende oppfinnelse tilveiebringer generelt et nedihullsverktøy med et forbedret middel for overføring av data til og fra et verktøy ved bruk av rør med ledning som er i · stand til å overføre et signal og/eller kraft mellom brønnens overflate og en hvilken som helst komponent i en borestreng. Ved ett aspekt innbefatter et nedihullsverktøy et legeme og en spindel (110) som er plassert i legemet, og hvor spindelen er bevegelige med hensyn til legemet. En ledningsforbindelse (135) løper over hele lengden av legemet og tillater signaler og/eller kraft i å overføres gjennom legemet mens verktøyet skifter lengde.

    Innvendig, roterende reguleringshode for stigerør

    公开(公告)号:NO332998B1

    公开(公告)日:2013-02-11

    申请号:NO20034795

    申请日:2003-10-27

    Abstract: Et system og en fremgangsmåte anordner et holdeelement for løsbar plassering av en roterende reguleringshodesammenstilling i et undervannshus. Holdeelementet går i inngrep med en Innvendig formasjon i undervannshuset for å motstå bevegelse av den roterende reguleringshode-sammenstilling i forhold til undervannshuset. Den roterende reguleringshodesammenstilling tettes mot undervannshuset når holdeelementet går i inngrep med den innvendige formasjon. En utstrekkbar del av holdeelementsammenstillingen ekstruderer en elastomer mellom en øvre del og en nedre del av det indre hus for å tette den roterende reguleringshodesammenstilling mot undervannshuset. Trykkavlastningsmekanismer slipper ut overtrykk i undervannshuset, og en trykkutjevningsmekanisme trykksetter lagre i lagersammenstillingen ved et på forhånd bestemt trykk.

    Internal riser rotating control head

    公开(公告)号:GB2431425B

    公开(公告)日:2007-06-06

    申请号:GB0701330

    申请日:2003-10-24

    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

    MULTI-CYCLE CIRCULATING TOOL
    19.
    发明专利

    公开(公告)号:CA2877369A1

    公开(公告)日:2014-01-16

    申请号:CA2877369

    申请日:2013-07-10

    Inventor: WILSON TIMOTHY L

    Abstract: A method and apparatus for circulating fluid in a wellbore includes a bottom sub 130 having a bottom sub port and a mandrel 35, wherein the mandrel 35 substantially forms an inner bore of the circulating tool and includes a mandrel port. The circulating tool may also include an activation piston 46 that is movable in a first direction and a port piston 64 movable in a second direction when the activation piston 46 moves in the first direction. The circulating tool may further include an inner sleeve 90 coupled to the port piston 64 and movable with the port piston, the inner sleeve 90 having an inner sleeve port in selective communication with the mandrel port. When the inner sleeve port is in communication with the mandrel port at least partially, circulating fluid is allowed to flow through the bottom sub port to the wellbore.

    Internal Riser Rotating Control Head

    公开(公告)号:AU2013206699A1

    公开(公告)日:2013-07-25

    申请号:AU2013206699

    申请日:2013-07-04

    Abstract: A system and method provides a holding member for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

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