• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A stage collar for stage cementing a well casing includes a slidable closing sleeve (18) having ports (20) alignable with ports (14) in the stage collar case. These closing sleeve and stage collar ports communicate with an annulus around the well casing when the stage collar is open. A shift sleeve (26) closes the ports during running in and is actuable by simple drill pipe movements to open and re­close the stage collar ports. The shift sleeve (26) is oper­ably coupled to the closing sleeve (18) by a latch ring (28) which locks the closing sleeve closed and cooperates therewith to form a smooth and substantially uniform inner stage collar bore. The drill pipe is operably connected to the stage collar by a screw-in or latch-in shifting tool (100) which cooperates with the stage collar elements to form a fluidtight passage from the drill pipe to the annulus without entering the well casing interior. A dual stage shifting tool (150) is also shown which permits a two-stage cementing operation to be performed with only one run down the hole.
    公开号:SU1609460A3
    申请号:SU864028765
    申请日:1986-10-03
    公开日:1990-11-23
    发明作者:Стивен Биссоннетт Гарольд
    申请人:Доуэлл Шлюмбергер Инк (Фирма)；
    IPC主号:
    专利说明:

    . g / g /
    openings t) equip each other;) bore-hole 2 bodies 1, Coupling 7 and case I iptol) .. we with grooves 12 forming an annular cavity, pots, expanding retaining ring 10. Case 1 has a stepped annular groove to ensure that the output ring 10 of engagement with the clutch 7 when the axial movement of the latter in the intermediate position of the device and
    fixing ring 10 coupling 4 in its final position. After the ring 10 is gripped and clamped in the gap between the housing 1 and the upper part of the coupling 7, the ring no longer comes into contact or engages with the coupling 7 and it can easily be removed from the well along with the drill string. Next hole
    6 are offset relative to the holes 2. 5 shi
    The invention relates to primary cementing of wells, in particular, to devices for step cementing of wells,
    The purpose of the invention is to increase the reliability of the device due to the possibility of sealing the radial holes after the end of cementing.
    Fig, 1 shows the device, a general view; in fig. 2-4 - the same in the process of work; Fig. 5 shows the mechanism for driving the device to the working position.
    The device comprises a hollow body 1 with radial holes 2 for communicating the cavity 3 of the body with a borehole well spaced, closing the sleeve 4 placed in the body 1 on the shear elements 5, filled with radial holes 6 and the radial holes 2 of the body can be blocked at its axial movement, the mechanism for moving the closing clutch from the transport position to the working one, made in the form of moving clutch 7 with connection 8 sub-drill string 9 with the possibility of axial movement during axial movement drill string 9
    - and interaction with the closing clutch 4 and the interaction element of the moving clutch with the closing clutch, made in the form of an expanding retaining ring 10 mounted on the moving clutch 7. In this case the closing clutch
    4 and the housing 1 form a uniform axial passage I1. The outer surface of the moving clutch 7 interacts with the inner surface of the closing clutch 4 and forms with it a sealed surface.
    0
    five -
    five
    0
    0
    The closing sleeve 4 is made with radial holes 6 against the radial holes 2 of the body, and the moving sleeve 7 and the body 1 are made with grooves 12, forming an annular cavity 13 under the expanding retaining ring 10.
    In this case, the housing 1 is made with a stepped annular groove to allow the expanding retaining ring 10 to be removed from the coupling with the displacement coupling 7 when it is axially moved to the intermediate position of the device. By the same expanding retaining ring 10, the closing sleeve 4 is fixed in its final position. The closure sleeve 4 has a plurality of notches to accommodate sealing elements such as conventional sealing rings 14 and gasket gasket 15 to provide liquid tight sealing between adjacent surfaces of the closure sleeve 4 and the housing.
    The transfer sleeve 7 also has a plurality of notches for receiving sealing elements, such as sealing rings 16, to create a liquid-tight seal between the adjacent surfaces of the transfer sleeve 7 and the closing sleeve 4.
    The lower end of the transfer sleeve 7 comprises a plurality of pins 17 of the split collet chuck, which is used for initial installation and holding this sleeve in the housing. There are many opposing protrusions (studs) 18 (only one is shown) on the housing with the calculation of the position between the fingers 17 of the chuck. The lower ends of the fingers 17 are initially set.
    in the free and unstressed state in the corresponding slot 1 9.
    The sealing rings 16 form a liquid-tight sealing above and below the radial channels 6 of the closing sleeve.
    The drill string 9 in the lower part has a displacement member 20 provided with an annular groove 21 on the outer surface, with radial channels 22 against the annular groove with sealing elements 23 on either side of the annular groove 21.
    The device works as follows.
    If the bottom hole operations are brought to the point where it is required to open the device for step cementing to produce cementing, the movement element 20 of the drill string 9 is engaged with the movement sleeve 7. At this point, the step cementing clutch is in the closed position (FIG. 2). The drill string 9 having a displacement member 20 is moved upward to displace the displacement clutch 7. A sufficient upward force is applied to force the fingers 17 of the chuck to come out of the slots 19 and to move the displacement clutch 7 upwards. The expandable ring 10 continues to remain in the bore 12, also moves upwards with the movable sleeve 7.
    The expanding retaining ring 10 is compressed in the annular groove of the displacement clutch 7, in the groove 12 and held there by the opposite part of the housing.
    The upward movement of the moving coupling 7 and the expanding locking ring 10 continues until the upper peripheral edge of the expanding locking ring comes into contact or contact with the lower peripheral edge of the closing locking ring.
    couplings 4. This is a contact or end-stop ring 10 and a moving
    The cycle is fixed on the surface by a sharp increase in the tension. Multiple shear screws and anti-rotating protrusions (not shown)
    the clutch 7 moves upward until the upper peripheral edge of the closing clutch 4 comes into contact with the edge of the lower hull of the housing is provided to prevent further 55 The expanding retaining ring 10 of the most upward movement of the closing further expands and is clamped to the clutch 4 at this time , and the necessary dawn, which is formed as a result of this effort. This tension applied by the upward closing movement, the coupling to the displacement coupling 7, should not be 4 away from the lower part: or-the body.
    exceed the shear force of the elements 5 The distance up traveled by the drillstring 9, the moving coupling 7 and the expanding retaining ring 10, from the position shown in FIG. 2 to the position shown in FIG. 3 may be marked on the surface by marking the drill string and be, for example, about two inches.
    The undercut of the housing seizes the expandable retaining ring 10 when it moves upwards and is in contact with the closure collar 4. As it is extended to the retaining ring. initially compressed in the annular groove 12 of the movement clutch, the housing undercut provides ample opportunity for the retaining ring 10 to expand away from the movement clutch 7, as shown in FIG. 3. However, the housing undercut is shallow and narrow enough so that the expanding
    snap ring 10 still partially
    is kept in the annular groove 12 and, thus, continues in the working position to engage with the displacement clutch 7.
    When the upward movement is prevented by the expanding retaining ring 10, which engages with the closing sleeve 4, the radial openings of the housing moving and closing
    couplings are combined (Fig. 3). The device is prepared for cementing.
    After cementing is complete, it is necessary to close the step cementing device again to insulate the zone.
    The drill string is lifted with a closing force from 30 to 40 thousand pounds more than the weight of the column. The force is applied to the displacement clutch 7
    through the drill string 9. This force is connected to the closing sleeve 4 by means of the expanding retaining ring 10. When cutting elements 5, the closing sleeve 4 expands
    FIG. 2
    FIG. five
    Fi5.
    Compiled by V.Grishanov Editor N, Tupitsa Tehred M. Khodanpch Proofreader V. Girn
    Order 3627
    Circulation 471
    VNIIPI State Committee on Invention (not open at the State Science and Technology Committee of the USSR 113035, Moscow, FZ, Raushsk ilb., 4/5
    Production and Publishing Combine Patent, g .. burned, st. Gagarin, 101
    FIG. five
    Subscription
    权利要求:
    Claims (1)
    [1]
    Claim
    A device for stepped cementing of casing in a well 2θ Zach containing a hollow body with radial holes for communication of the housing cavity with annular well space, covering the sleeve, placed in the body on the shear elements 25, made with the possibility of blocking the radial holes at its axial sliding movement, the mechanism for moving the closing clutch from the transport position to the working one, made in the form of a moving clutch, made with d drill string and with the possibility
    axial movement during axial movement of the drill string and interaction with the closing coupling, and an element of interaction of the moving coupling with the closing coupling made in the form of expanding. a stop ring mounted on the displacement coupling, wherein the closure coupling and the housing form an equal axial passage, characterized in that, in order to increase the reliability of the device due to the possibility of sealing the radial holes after the end of cementing, the outer surface of the displacement coupling interacts with the inner the surface of the closing sleeve and forms with it an airtight surface, the closing sleeve is made with radial holes against the radial holes of the housing, and the moving The coupling and housing are made with grooves forming an annular cavity under the expanding retaining ring, the housing being made with a stepped annular groove to allow the expanding retaining ring to be disengaged from the moving coupling when the latter is axially moved to the intermediate position of the device and fixed by the expanding retaining ring of the closing coupling in its final position.
    2
    1609460
    . 5
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1609460A3|1990-11-23|Apparatus for stepped cementing of casings in wells
    US6513595B1|2003-02-04|Port collar assembly for use in a wellbore
    US3498376A|1970-03-03|Well apparatus and setting tool
    US4246968A|1981-01-27|Cementing tool with protective sleeve
    US4260017A|1981-04-07|Cementing collar and method of operation
    US3356140A|1967-12-05|Subsurface well bore fluid flow control apparatus
    US4674569A|1987-06-23|Stage cementing tool
    US4405017A|1983-09-20|Positive locating expendable plug
    US4842061A|1989-06-27|Casing hanger packoff with C-shaped metal seal
    US5044441A|1991-09-03|Pack-off well apparatus and method
    US4969516A|1990-11-13|Packoff running tool with rotational cam
    US3494418A|1970-02-10|Well bore apparatus
    US2606618A|1952-08-12|Well packer
    US4411455A|1983-10-25|Riser connector
    US3824850A|1974-07-23|Pressure controlled test valve system for offshore wells
    US4406324A|1983-09-27|Bottom lock pipe seal assembly
    US4479544A|1984-10-30|Pressure actuated pack-off and method
    US4479545A|1984-10-30|Well-cementing stage collar
    US5330000A|1994-07-19|Squeeze packer latch
    US4687063A|1987-08-18|Well cementing method and apparatus
    US4161216A|1979-07-17|Mechanical latch with hydraulic locking mechanism
    EP0020155B1|1984-05-23|Valve with actuator for use in wells
    US5271462A|1993-12-21|Zone isolation apparatus
    US3105553A|1963-10-01|Fluid flow control apparatus
    CA2115702C|1997-03-04|Shifting tool for sliding sleeve valves
    同族专利:
    公开号 | 公开日
    BR8604834A|1987-07-07|
    US4669541A|1987-06-02|
    NO178410C|1996-03-20|
    DE3688179D1|1993-05-06|
    NO863958L|1987-04-06|
    DE3688179T2|1993-07-08|
    NO863958D0|1986-10-03|
    NO178410B|1995-12-11|
    EP0224942B1|1993-03-31|
    CA1244342A|1988-11-08|
    EP0224942A1|1987-06-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2584428C1|2015-01-27|2016-05-20|Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Северо-Кавказский федеральный университет"|Device for stage cementing of casing strings|US2659438A|1946-08-16|1953-11-17|L L Rector|Means for cementing wells|
    US2630999A|1947-02-24|1953-03-10|Baker Oil Tools Inc|Well casing cementing apparatus|
    US3071193A|1960-06-02|1963-01-01|Camco Inc|Well tubing sliding sleeve valve|
    US3223160A|1960-10-20|1965-12-14|Halliburton Co|Cementing apparatus|
    US3414060A|1967-11-20|1968-12-03|Joseph T. Zak|Selective shifting tool|
    US3811500A|1971-04-30|1974-05-21|Halliburton Co|Dual sleeve multiple stage cementer and its method of use in cementing oil and gas well casing|
    US3768562A|1972-05-25|1973-10-30|Halliburton Co|Full opening multiple stage cementing tool and methods of use|
    US4421165A|1980-07-15|1983-12-20|Halliburton Company|Multiple stage cementer and casing inflation packer|
    EP0080527B1|1981-11-30|1985-08-28|The Dow Chemical Company|Device for shifting a port collar sleeve|GB8620004D0|1986-08-16|1986-09-24|Easfind Ltd|Cementing of boreholes|
    US4850432A|1988-10-17|1989-07-25|Texaco Inc.|Manual port closing tool for well cementing|
    US4941535A|1988-10-17|1990-07-17|Texaco Inc.|Manual port closing tool for well cementing|
    US5411095A|1993-03-29|1995-05-02|Davis-Lynch, Inc.|Apparatus for cementing a casing string|
    GB9513657D0|1995-07-05|1995-09-06|Phoenix P A Ltd|Downhole flow control tool|
    US5810084A|1996-02-22|1998-09-22|Halliburton Energy Services, Inc.|Gravel pack apparatus|
    US5842517A|1997-05-02|1998-12-01|Davis-Lynch, Inc.|Anti-rotational cementing apparatus|
    US6634431B2|1998-11-16|2003-10-21|Robert Lance Cook|Isolation of subterranean zones|
    US6712154B2|1998-11-16|2004-03-30|Enventure Global Technology|Isolation of subterranean zones|
    US6745845B2|1998-11-16|2004-06-08|Shell Oil Company|Isolation of subterranean zones|
    GB2344606B|1998-12-07|2003-08-13|Shell Int Research|Forming a wellbore casing by expansion of a tubular member|
    US6557640B1|1998-12-07|2003-05-06|Shell Oil Company|Lubrication and self-cleaning system for expansion mandrel|
    US7357188B1|1998-12-07|2008-04-15|Shell Oil Company|Mono-diameter wellbore casing|
    US6575240B1|1998-12-07|2003-06-10|Shell Oil Company|System and method for driving pipe|
    US6725919B2|1998-12-07|2004-04-27|Shell Oil Company|Forming a wellbore casing while simultaneously drilling a wellbore|
    US6823937B1|1998-12-07|2004-11-30|Shell Oil Company|Wellhead|
    US6640903B1|1998-12-07|2003-11-04|Shell Oil Company|Forming a wellbore casing while simultaneously drilling a wellbore|
    AU770359B2|1999-02-26|2004-02-19|Shell Internationale Research Maatschappij B.V.|Liner hanger|
    EG22306A|1999-11-15|2002-12-31|Shell Int Research|Expanding a tubular element in a wellbore|
    US6513595B1|2000-06-09|2003-02-04|Weatherford/Lamb, Inc.|Port collar assembly for use in a wellbore|
    US7886831B2|2003-01-22|2011-02-15|Enventure Global Technology, L.L.C.|Apparatus for radially expanding and plastically deforming a tubular member|
    US6845820B1|2000-10-19|2005-01-25|Weatherford/Lamb, Inc.|Completion apparatus and methods for use in hydrocarbon wells|
    US6655459B2|2001-07-30|2003-12-02|Weatherford/Lamb, Inc.|Completion apparatus and methods for use in wellbores|
    EP1972752A2|2002-04-12|2008-09-24|Enventure Global Technology|Protective sleeve for threated connections for expandable liner hanger|
    US7918284B2|2002-04-15|2011-04-05|Enventure Global Technology, L.L.C.|Protective sleeve for threaded connections for expandable liner hanger|
    EP1552271A1|2002-09-20|2005-07-13|Enventure Global Technology|Pipe formability evaluation for expandable tubulars|
    CA2517883C|2003-03-05|2010-01-12|Weatherford/Lamb, Inc.|Full bore lined wellbores|
    WO2004081346A2|2003-03-11|2004-09-23|Enventure Global Technology|Apparatus for radially expanding and plastically deforming a tubular member|
    WO2004094766A2|2003-04-17|2004-11-04|Enventure Global Technology|Apparatus for radially expanding and plastically deforming a tubular member|
    US7712522B2|2003-09-05|2010-05-11|Enventure Global Technology, Llc|Expansion cone and system|
    CA2457329A1|2004-02-10|2005-08-10|Richard T. Hay|Downhole drilling fluid heating apparatus and method|
    US7416026B2|2004-02-10|2008-08-26|Halliburton Energy Services, Inc.|Apparatus for changing flowbore fluid temperature|
    GB2432866A|2004-08-13|2007-06-06|Enventure Global Technology|Expandable tubular|
    US7303014B2|2004-10-26|2007-12-04|Halliburton Energy Services, Inc.|Casing strings and methods of using such strings in subterranean cementing operations|
    NO324703B1|2006-01-20|2007-12-03|Peak Well Solutions As|Cement valve assembly|
    US7798213B2|2006-12-14|2010-09-21|Baker Hughes Incorporated|Radial spring latch apparatus and methods for making and using same|
    US20090090516A1|2007-03-30|2009-04-09|Enventure Global Technology, L.L.C.|Tubular liner|
    US20090260816A1|2008-04-21|2009-10-22|Earl Webb|Method and System for Cementing|
    NO329532B1|2008-08-25|2010-11-08|I Tec As|Valve for high differential pressure in a wellbore|
    CA2689480C|2008-12-31|2013-09-03|Weatherford/Lamb, Inc.|Dual isolation mechanism of cementation port|
    US8215404B2|2009-02-13|2012-07-10|Halliburton Energy Services Inc.|Stage cementing tool|
    US8267174B2|2009-08-20|2012-09-18|Halliburton Energy Services Inc.|Internal retention mechanism|
    DE102010036411B4|2010-07-15|2012-03-22|Geowatt Ag|Method for backfilling a borehole and arrangement therefor|
    US8967255B2|2011-11-04|2015-03-03|Halliburton Energy Services, Inc.|Subsurface release cementing plug|
    US9856714B2|2013-07-17|2018-01-02|Weatherford Technology Holdings, Llc|Zone select stage tool system|
    US9316091B2|2013-07-26|2016-04-19|Weatherford/Lamb, Inc.|Electronically-actuated cementing port collar|
    US10113372B2|2013-07-30|2018-10-30|Weatherford Technology Holdings, Llc|Centralizer|
    GB201323121D0|2013-12-30|2014-02-12|Darcy Technologies Ltd|Downhole Apparatus|
    US10280695B2|2014-06-27|2019-05-07|Weatherford Technology Holdings, Llc|Centralizer|
    EP2963232A1|2014-06-30|2016-01-06|Welltec A/S|A downhole flow control device|
    WO2016057496A1|2014-10-08|2016-04-14|Weatherford Technology Holdings, Llc|Stage tool|
    WO2016161306A1|2015-04-01|2016-10-06|Weatherford Technology Holdings, Llc|Metal-to-metal sealing valve with managed flow erosion across sealing member|
    US10161198B2|2015-07-08|2018-12-25|Weatherford Technology Holdings, Llc|Centralizer with integrated stop collar|
    US10597977B2|2015-09-29|2020-03-24|Halliburton Energy Services, Inc.|Closing sleeve assembly with ported sleeve|
    US10571027B2|2017-06-09|2020-02-25|Gryphon Oilfield Solutions, Llc|Metal ring seal and improved profile selective system for downhole tools|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/784,401|US4669541A|1985-10-04|1985-10-04|Stage cementing apparatus|
    [返回顶部]