• 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 well blowout preventer packer unit is characterized by long life, and induced back to front (radial) rubber feeding between metallic inserts to close on well pipe for producing a pressure gradient against the pipe which is greatest at the bottom of the packer extent engaging the pipe, and lowest at the top of the packer extent engaging the pipe.
    公开号:SU1322986A3
    申请号:SU823456998
    申请日:1982-06-24
    公开日:1987-07-07
    发明作者:Дж.Хью Вей；Мурман Фернандо；Мацуда Ойджин
    申请人:Хайдрил Ко (Фирма)；
    IPC主号:
    专利说明:

    113.72986g
    Ioebr. Teeie refers to the FICJU / I igfructuary of Lunia blinker
    zodozhivayuschey industry-penisti, l named-nol mip nmikuogtm 3. but to preventive equipment;, K-type and; the friend of the coolest of the invention - Guy's name and nepxiKu.
    Reliability of work of compacting zig-5gch :. t slope ,, which you change h
    ment, CMMMtJrpHHHhix rldi, 1l planes,
    Figure 1 shows the packer gele-through which the initial joint in the fuse assembly is a pinch-out radial compression of the sequence, a longitudinal section; on the .2-lighter sections of the flat-slit F section of A-L in FIG. 1; in fig. 3 - ra: 1re Ostremrmta efforts per unit on bB in Fig. 2; in fig. - U1 bridging of the forward displacement; torshn for the sealing element; in fig. 5 - more rapid closure, FI then the preventer in partial closed state is like the final research institute; Fig. 6 shows a section B-B in Fig. 5; the compression of the post-sectional areas of the upn 7 of the liner is a side view; On the container side (for example, Fig. 8 is an insert, type D in Fig. 7; in the case of a seal around a Buropoi), Fig. 9 is a view D in Fig. 7; 10-h is slowed down or reduced to be cut in Fig. 3; in fig. 11 - pt-ali: atsi 1 is longer than that of milliseach; there is a cut out on MF on fig.Z; Fig. 12 shows a modified ratio of the application of a larger preventer in the open state; a., from any effort, lia, a unit of the direction, a top view; Fig. 13 shows the upwardly displaced piston. In addition to AND-I in FIG. 12; on Fig - packer, apparently, the piston penetrates inside of the top; FIG. 15 is a sectional view of the QC, radially outwardly from the inserts 14. FIG. 14; FIG. 16 shows a modified O-ring cam insert used in the member; the bulk surface 1 contains the first member of FIG. 17 view L in FIG. 16; in FIG. 18 —Stock 13, in the form of a truncated cone with view M in FIG. 16. Lower tilt angle x. The Preventor contains a metal-central axis 16 (or a parallel body 1, the lowest extension of the casing; its lines) and the second section 17 of the other is shown fitted with a flange 2 on the truncated cone with a booster bolt and a bolt 3 with a flange with a tilt angle relative to the axis , casing or other equipment, and radially outwardly with a simple wellhead. The housing is woundly separated from the surfaces which may have various forms, the liners 18 and 19. Sections 15 and 17 contain a piston 5, movable in the crown 35 intersect in the annular zone 20, its direction in the chamber 6 with a small portion 17 is located closer to the upper vein fluid pressure on the pore-surface of the sealing element crank plane 7 There is such a movement 21, my section 15. The zone 20 of the piston serves to compress the QOL-ICT when it is bent. sealing element 8 with a 0-
    pressure from piston distance. Similarly, piston 5 has an inner inner cam surface – cam surface; engage the outer surface –– cam surface;
    iir.-i sealing element. Porshneva
    NOS T AND PD to c r a
     The cam surface has a change. The sealing element has a bottom-10 of its angle of inclination, which coincides with
    the new body part 9, intended for the corners of the cam surface of the sealing inward-facing mixing element with the direction
    the piston with its axial over-upward displacement of the piston. The piston has
    the upper part of the body, before - ,,, the first inner part 22 of the upper part intended for axial compression tioeru in the form of a truncated cone with
    the piston during its displacement so that a relatively small angle of inclination
    the upper part with the force of interaction-ut relative to the axis 16 in symmetrical
    with a surface of knockout-radial arms, a skeleton and an engaging
    of the body wall (for example, in m (5 hundred. 11 ie section 13 of the surface of the seal 12) of the body during the removal of the piston element. The piston is also named. The wall 12 has the form of a truncated section 23 of the corner crown to facilitate the inner surface in the form of a truncated cone
    giving elastomer in the top location. very sternly bol1,; 1: they will be overlapped with an angle of more than 45 between two
    ma 1 about axis 16 and in symmetrical radial planes and meshed with section 17 of the surface of the pilot element. Usually angle
    ss may be less than 45, angle / m
    and the difference U by the angles сС and jb may exceed 15. Other angles are also possible. Surface areas 22, 23,
    15 and 17 expand upwards.
    During the upward movement of the piston, the lower annular opening 13 is first formed, the internal bulge then gradually moves upwards as the piston moves upwards. The sealing element, with a sufficient displacement of the radially inward seal around the drill pipe, shown passing axially vertically through the preventer. Since the sealing of the sealing element occurs from bottom to top, the pressure gradient on the pipe is greatest at the bottom and the lowest at the top of the packer engaging the pipe, which is consistent with the distribution of the highest fluid pressure in the well at the lower strone of the pilot element with no pressure in the well above the packer. In the absence of a pipe, the sealing element 8 will completely block the vertical channel 24 through the preventer when the element is substantially compressed by the piston 5. The upper part of the sealing element has a larger full radial dimension R of the piston in the extended position than in the retracted position of the piston.
    When the piston moves downward in response to the application of fluid pressure to the surface 25, the sealing element expands radially outward to the open position. The piston annular surface 26 may have a sliding guide engagement with the hole 27 of the housing body. The sealing element is usually limited vertically down the lower inner surface 28 of the roofs.
    ki case.
    These functions are further enhanced by the implementation of the inclined lengths of the sections 22 and 15 of the cam surfaces substantially longer than the inclined lengths of the sections 23 and 17 of the cam surfaces.
    Overall horizontal annular protruding area A, backwards
    five
     5 20 30 35
    29864
    The river section of the piston is approximately equal to the full horizontal downwardly protruding area A, the cross section open to the pressure of the fluid in the well. This ensures a balanced pressure condition on the piston and packer before the packer is compressed. When this pressure of the fluid well gets access to the space 29 in the lower part of the piston through the holes 30 in the annular rod 31.
    The sealing element 8 contains metal inserts 14, usually separated by an annular gap from the central vertical axis 16, the inserts having partitions 32, which usually extend longitudinally along. verticals The element also has a ring 33 of elastomeric material extending around axis 16 and surrounding the bulkheads so that they hold the elastomeric material during the inward compressive displacement of the packer element. Usually, the rubber adheres to the metal inserts. The elastomeric material may consist, for example, of natural or synthetic rubber. The radial thickness of the elastomeric material at position 34 between the vertical inner edges 18 of the partitions and the opening 35 of the preventer 36 is less than the radial thickness of the material at position 37 between the vertical outer edges 19 of the partitions and the outer periphery 38 of the sealing element.

    In addition, the upper extensions 39 of the baffles 32 have internal surfaces 40 or edges facing radially inward in the direction of the axis 16, which extend down and out at an angle U (Fig. 6) relative to the vertical to resist the upward displacement of the sealing material in response Inwardly directed piston seal. This state is with a partially closed sealing element, but an elastomeric material protruding inward at the outlet position 13, i.e. at a lower level than the levels of the edges or surfaces 40. The material of the seal adjacent to the latter can also be attached. Upward displacement of material by pressure in a well below convexity P
    limited with increased efficiency.
    The baffle surfaces 40 extend upward and are located close to and preferably adjacent to the outermost surfaces 41 of the upper plates 42 that are radially inward. in one piece with the upper parts of the partition. The inserts also have lower plates 43, which are made in one piece with the lower parts of the town. The plates 42 are ring-shaped around the axis 16, as are the plates 43. The opposite sides 44 of the plates 42 are made so that they coincide or nearly coincide when closing the 1-st element (1). However, thin strips 45 of elastomeric material can be attached to each such side (FIG. .9) so that they are compacted when the adjacent plates approach a mutually coincident state. The opposite sides 46 of the lower plates are made so as to coincide with or almost coincide during closing of the preventer, but before The sides 44 taper inward towards the axis 16, as well as the sides 46. Also the sides 44 taper upward (Figs. 7-1 and), and the sides 46 taper downward, and the angle of inclination of the taper V to the vertical is less than about I. Lower sections sides 44
    most bhshzki each other in the region of the 17 plots of the surface of the seal is closed, thereby sealing the corresponding 1E of the recess 47 from the grooves 48 and the recess 49 From the grooves 50. Compressing the rubber layers or strips 41
    (Fig. 10) also closes grooves 48 of recess 47 and groove 48 has a configuration of a recess 45. The keyhole, as well as
    each recess 56 and groove 50.
    O-rings 8 contain
    recesses separated by the LaoKpyr space of the i 6 axis and usually extending radially outward from intersections with the annular opening, such recesses adapted to be compressed in response to an inwardly displaced sealing element in order to facilitate the material against the pressure upwards beyond the upper surface 21 of the sealing element, t . in zone 51 (fig.Z). In the example, the recesses 45 are formed in the evil .j right / inward compression of the packer, the one-dimensional material so as to help restrict the inlet from the intersections 52 with the opening of the initial formation of the bulge to. 35 to intersections 53 with a relatively low outer level (Fig. 4). the top of the sealing element. When comparing the full size, the cut-off element may be (15 hold additional cuts 57, spatially separated around axis 16 and passage 1 cte, usually radially outward from intersections 58 with an annular opening. Cuts 57 may be located at a level or level intermediate to the level of two a series of recesses 47 and 56, and are adapted to be filled with excess elastomeric material during

    The recesses 4 / have polygonal cross sections in planes normal to their usually radial extension (Fig. 9). Such polygons may typically have a diamond shape with downwardly diverging walls 54 and 55 of the recesses. During the inward displacement of the sealer, walls 54 and 55 are displaced upward by a flow of excess 3J acToMepHoro material until the depressions collapse (Fig. 10). The grooves 48 interconnecting the upper portions of the recesses and the upper surface of the sealer are also destroyed, sealing the recesses to prevent upward extrusion of the material from the recesses, and thus further material flow is directed radially inwards for hermetic embedding at the drill pipe final closure time of the packer. The necks of the recesses 47 (FIG. 3) are enlarged to facilitate the flow of rubber.
    On the other hand, the lower depressions 56 collapse downward in the direction of the plz 50 as the rubber flows into such depressions 56 during the inward compression of the seal.
    The series of recesses 47 is separated in the axial direction from the row of grooves 48 and is also spatially separated in the axial direction from the first 15 and second
    body element, made in the form of a truncated cone, but closer to the surface section 17 than to section 15. Each combination is deepened inside the packer squeeze, thereby helping to limit the initial formation of a bulge to. relatively low level (figure 4). When comparing the full size, the cut-off element may contain additional cuts 57, spatially separated around axis 16 and passage 1, usually radially outward from intersections 58 with an annular opening. The cutouts 57 may be located at a level or levels intermediate to the level of two rows of recesses 47 and 56, and adapted to be filled with an excess elastomeric material during 71322
    chd 7 (fig. 5), with its reduced size of 58 (.), it can be seen that the number in 57 can be equal to the number of lambings of A5 and they can usually have an annular cross section in planes normal to the direction of their radial length
    Inserts 1A may have partitions with vertical inner sides.
    us or edges everywhere between the upper round of the piston and the contour of the lower side 42 and the lower 43 plates. The upper heads of the head, since the rear part of the plate 42 has a directional radio (outer side) element always inside the extension 59, which is supported and always located in the direction of the contracted state above the partitions, the SRI is prevented from radially inward. Rings 33 ela- 15 rubber breaks. The relative size of the material protrudes in position 60 inward from the inner sides of the partitions and upward in the direction of the overhanging elongations of the upper plates so as to expand in the position 61 61 of the neck radially inwardly relative to usually the intersection of the inside to reach the predetermined right sides 40 partitions and lower sides of the upper plate. As a result, the upward squeezing of the elastomeric material into the area of the opening by 25 plates is inserted by a tube and pipe, which is prevented due to This is intended for compaction of this material below the overhanging elongations of the upper plate with the help of a flow of excess material into collapsing recesses, 30
    The inserts in relation to the cross section of the sealing element and the cam surfaces of the piston provide for quick movement of the locking diameter of the inserts. This locking diameter is minimal to minimize the clearance between
    权利要求:
    Claims (3)
    [1]
    Formula of inventions
    1, Preventer, comprising a housing in which an annular piston is placed, the inner surface of which has the shape of a truncated cone, an annular elastomer made of elastomer
    1, Preventer, comprising a housing in which an annular piston is placed, the inner surface of which has the shape of a truncated cone, an annular elastomer made of elastomer
    In short, a high cone-shaped piston provides a stable and uncomplicated mechanism for providing various mechanical movements for a different, r sealing element, having an upper compression of the filling element and a lower one, made from a cat. When a hydraulic surface is placed, the pressure is located on the closing chamber of the pre-inside conical surface of the piston, the piston is displaced vertically and placed in the upper and lower parts, as a result of which the cut Q and x cutouts terminating in the outer tank are compressed. at the lower or outer surface of the sealing element of the backfill element, the element installed in the cutouts of the sealing element around the axis are spatially separated metal inserts, each cat These are made of an upper plate and a lower one, connected by partitions, the passage of longitudinal compression of rubber at the back of the insert member is radially compressed by compressing the rubber in the center direction until the upper and lower plates of the liners come together, and in this position the inserts get stuck and stop further advance radially inwards. The radial internal displacement of the sleeper and the lower rubber reservoir contributes to the front or inner gauge relative to the vertical axis.
    To the rubber tank inside, the closing movement of the insert acts to displace the rubber between the liners radially inside the bottom of the front (inner) feed
    eight
    JieaepDyapa rubber. After locking the liners, a smaller cone on the piston acts on the lower (outer) reservoir of the sealing element to supply rubber between the inserts to the front or inside of the element.
    The rubber at the rear part of the element is held all the time by the upper contour of the piston and the contour of the lower side of the head. Since the rear part (outer side) of the element is always held and always in a compressed state, rubber breakages are prevented. The relative size radially inward relative to the rubber to achieve a predetermined insert plate and tube, which is designed to seal
    The inserts in relation to the cross section of the sealing element and the cam surfaces of the piston ensure fast movement by the piston and the contour of the lower side of the head. Since the rear part (outer side) of the element is always held and always in a compressed state, rubber breakage is prevented. The relative size radially inward relative to the rubber to achieve a predetermined insert plate and tube, which is designed to seal
    locking diameter. This locking diameter is minimal to minimize the clearance between
    By the piston tour and the contour of the bottom side of the head. Since the rear part (outer side) of the element is always held and always in a compressed state, rubber breaks are prevented. The relative size radially inward relative to the rubber to achieve a predetermined insert plate and tube, which is designed to seal
    Formula of inventions
    By the piston tour and the contour of the bottom side of the head. Since the rear part (outer side) of the element is always held and always in a compressed state, rubber breaks are prevented. The relative size radially inward relative to the rubber to achieve a predetermined insert plate and tube, which is designed to seal
    1, Preventer, comprising a housing in which an annular piston is placed, the inner surface of which has the shape of a truncated cone, an annular elastomer made of elastomer
    a sealing element having an upper part and a lower part, made with a conical surface located inside the conical surface of the piston, and cutouts located in the upper and lower parts, ending on the outer surface of the sealing element, mounted in the notches of the sealing element around the axis, spatially separated metallic liners, each of which is made of an upper plate and a lower one, connected by partitions along the axis of the preventer, characterized in reliability of the sealing element, in the upper part of the inner surface of the annular piston. A bevel is made, the angle of inclination of the preventer core is greater than the angle of inclination relative to this axis of the conical piston section, and additional cuts are made on the inner surface of the sealing element.
    [2]
    2. A transcript of no. 1, which is filled with polygons.
    [3]
    3. A device according to claim 1, in which the rhombic form is.
    . A preventer in accordance with claim 1, that 86IQ
    Lying with b | .1 a short side of the lower plate of the Mkchapysh have klpralylenny down skogy.
     v, Prsentor under item I, about tl and - tea t and and the fact that the angle of inclination of the bevel of the upper part of the piston relative to the non-vertical axis of the preventer is more than 4 :), and the angle of the conical ippon is: - ch1.: the piston is less than 45 .
    28
    21
    at
    ;.

    ten
    12
    26 21
    Fi.5
    VP
    Fi2.6
    chg
    chg
    By dg
    FIG. 12
    P
    FIG. and
    Fig.P
    View
    42
    32, 3
    W „6
    Compiled by I. Kepke Editor A. Koeorie Tehred M. Morgental Proofreader A. Tsko
    Order Circulation 532 Subscription
    VNIIL of the USSR State Committee
    on affairs of invention and discoveries 113035, Moscow, Zh-35, Raushsk nab ,, d.4 / 5
    Production and printing company, Uzhgorod, Projecto st., 4
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2038140A|1931-07-06|1936-04-21|Hydril Co|Packing head|
    US2124015A|1935-11-19|1938-07-19|Hydril Co|Packing head|
    US2163813A|1936-08-24|1939-06-27|Hydril Co|Oil well packing head|
    US2148844A|1936-10-02|1939-02-28|Hydril Co|Packing head for oil wells|
    US2287205A|1939-01-27|1942-06-23|Hydril Company Of California|Packing head|
    US2609836A|1946-08-16|1952-09-09|Hydril Corp|Control head and blow-out preventer|
    US3063467A|1960-04-08|1962-11-13|Mission Mfg Co|Valve seats|
    US3225831A|1962-04-16|1965-12-28|Hydril Co|Apparatus and method for packing off multiple tubing strings|
    NL302722A|1963-02-01|
    US3486759A|1967-08-25|1969-12-30|Hydril Co|Sealing of underwater equipment|
    US3591125A|1968-10-14|1971-07-06|Hydril Co|Multiple-section well blowout preventer packer|
    US3533468A|1968-12-23|1970-10-13|Hydril Co|Well pressure compensated well blowout preventer|
    US3917293A|1974-06-26|1975-11-04|Hydril Co|Controlled closing pattern packing unit for blowout preventer|
    US3958808A|1974-06-26|1976-05-25|Hydril Company|Controlled closing pattern packing unit for blowout preventer|
    US4098341A|1977-02-28|1978-07-04|Hydril Company|Rotating blowout preventer apparatus|
    US4098516A|1977-08-15|1978-07-04|Hydril Company|Blowout preventer packing unit with slanted reinforcing inserts|
    US4283039A|1980-06-05|1981-08-11|Nl Industries, Inc.|Annular blowout preventer with upper and lower spherical sealing surfaces|US4579314A|1983-04-13|1986-04-01|Cameron Iron Works, Inc.|Annular blowout preventer|
    US4657263A|1983-04-18|1987-04-14|Hydril Company|Annular packing unit and insert|
    JPS60501068A|1983-04-18|1985-07-11|
    US4605195A|1985-05-01|1986-08-12|Hydril Company|Annular blowout preventer packing unit|
    US5851013A|1997-07-03|1998-12-22|Hydril Company|Blowout preventer packing element with metallic inserts|
    US5944110A|1997-09-11|1999-08-31|Cooper Cameron Corporation|Variable bore ram packer for a ram type blowout preventer|
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    US20080023917A1|2006-07-28|2008-01-31|Hydril Company Lp|Seal for blowout preventer with selective debonding|
    US9784065B2|2014-01-27|2017-10-10|Katch Kan Holdings Ltd.|Apparatus and method for stripping solids and fluids from a string used in drilling or servicing wells|
    US9580988B2|2014-12-09|2017-02-28|Hydril USA Distribution LLC|Variable ram packer with strain reduction features|
    US10316607B2|2014-12-17|2019-06-11|Managed Pressure Operations Pte. Ltd.|Pressure containment devices|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/277,341|US4461448A|1981-06-25|1981-06-25|Well blowout preventer, and packing element|
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