CN109577903A - Rotating blowout preventer rotation assembly easy to assemble - Google Patents
Rotating blowout preventer rotation assembly easy to assemble Download PDFInfo
- Publication number
- CN109577903A CN109577903A CN201811613654.6A CN201811613654A CN109577903A CN 109577903 A CN109577903 A CN 109577903A CN 201811613654 A CN201811613654 A CN 201811613654A CN 109577903 A CN109577903 A CN 109577903A
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- sleeve
- mandrel
- sealing sleeve
- bearing
- movable sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 144
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 70
- 239000003292 glue Substances 0.000 claims abstract description 56
- 241001633942 Dais Species 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000008439 repair process Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
The present invention relates to rotating blowout preventer revolving part technical fields, are a kind of rotating blowout preventer rotation assembly easy to assemble comprising gluing core attachment base, gluing core mounting cylinder, mandrel, upper movable sealing sleeve, lower movable sealing sleeve and lower glue core mounting base.Structure of the invention is reasonable and compact, it is easy to use, compared to existing rotating blowout preventer rotation assembly, the present invention changes gluing core attachment base and gluing core mounting cylinder between the two, glue core mounting cylinder, between upper movable sealing sleeve and mandrel three and mandrel, connection type between lower movable sealing sleeve and lower glue core mounting base three, the present invention is set to be easier to dismount, swivel control head rotation assembly can be repaired at the scene, maintenance, maintenance and transportation cost is effectively reduced, the dynamic sealing failure replacement for effectively solving existing rotation assembly is difficult, maintenance cycle is long, problem at high cost.
Description
Technical field
The present invention relates to rotating blowout preventer revolving part technical fields, are a kind of rotating blowout preventer rotation assembly easy to assemble.
Background technique
Rotating blowout preventer is to implement one of under balance pressure drilling, the key equipment of controlled pressure drilling.Its main function provides well head
Pressure control, realizes rotatory sealing.Wherein, rotation assembly is the chief component of rotating blowout preventer, is in drilling tool rotation strip
The important component of wellhead sealing is realized under part.
Rotation assembly used at present is as shown in Fig. 1, gluing core mounting means be gluing core print seat by bolt with
Core connection is glued, is then put into gluing core cylinder, core print seat gland is then glued and connects gluing core cylinder in a manner of screw thread, compress gluing
Core print seat.During field operation, due to well head vibration, rotation, it may appear that the gluing core cylinder of rotation assembly and gluing core gland rotation
Occur back-off phenomenon during turning, leads to rotation assembly eccentric wear, scraps and wellhead sealing failure conditions.
Meanwhile the specific connection type of upper dynamic sealing of rotation assembly are as follows: upper dynamic sealing connects rotation in a manner of screw thread
The mandrel of assembly, to prevent upper dynamic sealing tripping in rotary course, respectively in upper dynamic sealing and several points on mandrel contact plane
On welded, to prevent upper dynamic sealing to be buckled in rotary course, and glue core cylinder with bolt connecting mode and upper dynamic
It is tightly connected.During field operation, it may appear that upper dynamic sealing is because of long-term rotation wear-out failure phenomenon in rotary course, due to upper
Dynamic sealing is welded on several points respectively with mandrel, in dismounting and change when dynamic sealing, need to polish remove dynamic sealing with
The several pads of mandrel, in-situ processing can damage mandrel, cause bearing damage；When scene can not repair replacement, factory's dimension can only be returned
It repairs, maintenance cycle is long, and transportation cost is high.
In addition, dynamic sealing is packed into mandrel in a manner of screw thread under rotation assembly, to prevent lower dynamic sealing tripping in rotary course,
Several points are taken to be welded respectively in lower dynamic sealing and mandrel contact plane, and the lower glue core seat of rotation assembly is connected with bolt
Mode is connect to connect with lower dynamic sealing.During field operation, it may appear that lower sealing is because of long-term rotation wear-out failure in rotary course
Phenomenon under dismounting and change when dynamic sealing, need to polish under removal since lower sealing is welded on several points respectively with mandrel
Sealing and the several pads of mandrel, in-situ processing are equally easy to damage mandrel, cause bearing damage；Scene can not repair replacement
When, can only depot repair, maintenance cycle is long, and transportation cost is high.
The production domesticization rotation of domestic Guanghan drilling institute, middle petrochemical industry triumph drilling well institute and the production of other petroleum equipment companies is anti-
The rotation assembly of spray apparatus mostly uses lower dynamic sealing to be connected and be welded in a manner of screw thread on the bearing of rotation assembly.
From the above mentioned it is found that rotation assembly is because of the limitation of its assembly method, scene can not be dismantled and be assembled, therefore be needed
It relies on producer to repair maintenance, thus leads to following problems:
(1) increase of the transportation cost of rotation assembly replacement, while site operation is influenced, cause operating cost to increase.Sometimes it is
It avoids a rotation assembly failure from leading to the influence to site operation, needs to be equipped with two assemblies simultaneously, reduce rotation assembly
And rotating blowout preventer service efficiency.
(2) rotation assembly return factory transport and maintenance cost it is high.
Summary of the invention
The present invention provides a kind of rotating blowout preventer rotation assembly easy to assemble, overcome the defects of the prior art,
It can effectively solve existing rotating blowout preventer rotation assembly scene to be difficult to dismount, and the problem that depot repair is at high cost.
The technical scheme is that realized by following measures: a kind of rotating blowout preventer rotation assembly easy to assemble,
Including gluing core attachment base, gluing core mounting cylinder, mandrel, upper movable sealing sleeve, lower movable sealing sleeve and lower glue core mounting base；Glue core
Upper chuck and the lower chuck for being fixedly connected with gluing core, upper chuck and gluing core are equipped at intervals on the outside of attachment base from top to bottom
Bolt connecting mode fixed installation is passed through at the top of mounting cylinder；It is integrally fixed in the inside top of upper movable sealing sleeve
Upper connection boss glues the bottom of core mounting cylinder, the upper connection boss of upper movable sealing sleeve and mandrel top three and leads to from top to bottom
Cross bolt connecting mode fixed installation；Lower connection boss is integrally fixed in lower movable sealing sleeve bottom inside, it is mandrel bottom, lower dynamic
The lower connection boss of sealing shroud and lower glue core mounting base three pass through bolt connecting mode fixed installation；Outside mandrel
Side interval is fixedly installed with shell, on the outside of mandrel and on the inside of shell between be fixedly installed with positioned at upper movable sealing sleeve, it is lower move it is close
Bearing assembly between big envelope.
Here is the further optimization and/or improvements to invention technology described above scheme:
Above-mentioned gluing core attachment base includes upper mounting seat body, upper chuck is equipped in the upper outside of upper mounting seat body, in upper installation
Pedestal lower outside is equipped with the lower chuck for being fixedly connected with gluing core top, is equipped with limit convex in upper mounting seat body bottom
Ring is equipped in upper mounting seat body upper inner for the interior limit concave station to driver sleeve axial limiting；Along circle on upper chuck
The first threaded hole is distributed in weekly interval, be circumferentially intervally distributed on lower chuck for the second spiral shell for connecting at the top of gluing core
Pit；It is equipped between upper chuck and lower chuck convenient for installing the spacing of fastener into the second threaded hole；At interior limit concave station
Side is equipped with the thread segment for being fixedly connected with driver sleeve in upper mounting seat body；The longitudinal cross-section of position limiting convex ring is in wide at the top and narrow at the bottom
It is trapezoidal.
Above-mentioned gluing core mounting cylinder includes glue core cylinder, is circumferentially arranged at intervals in glue core cylinder top and glues core company
Corresponding upper tapped blind hole above and below first threaded hole of joint chair, by upper and lower corresponding first threaded hole and upper tapped blind hole
Bolt, which is fixedly mounted, to be fixedly connected at the top of upper chuck and gluing core mounting cylinder；Glue core cylinder top on the inside of upper tapped blind hole
End is circumferentially arranged at intervals with sealed groove, and sealing element is fixedly installed in sealed groove；In the bottom inside of glue core cylinder
It is provided with connection land, is circumferentially arranged at intervals with and connection screw thread corresponding above and below the screw hole at the top of mandrel in connection land
Hole is provided in connection land bottom end for the limited ring groove to axial limiting at the top of upper movable sealing sleeve.
Above-mentioned upper movable sealing sleeve includes upper sleeve gasket ontology, is integrally fixed with upper company in the inside top of upper sleeve gasket ontology
Boss is connect, corresponding first connection above and below screw hole is circumferentially equipped at intervals at the top of the mandrel with rotation assembly on upper connection boss
Hole will glue core by the way that bolt is fixedly mounted in the screw hole at the top of upper and lower corresponding connection screw thread hole, mandrel and the first connecting hole
Mounting cylinder bottom, upper sleeve gasket ontology upper connection boss and mandrel at the top of three be fixedly connected simultaneously；Upper connection boss bottom end
Form the first limited ring dais to axial limiting at the top of mandrel；It is upper connection outside the boss upper sleeve gasket bodies top circumferentially
It is equipped at intervals with opening up upper seal groove, sealing element, upper sleeve gasket body upper part one are fixedly installed in upper seal groove
It is fixed with the outer lug boss being sleeved in limited ring groove, upper seal groove is arranged at the top of outer lug boss.
Above-mentioned lower movable sealing sleeve includes lower sleeve gasket ontology, is integrally fixed with lower company in the bottom inside of lower sleeve gasket ontology
Connect boss, be circumferentially equipped at intervals on lower connection boss with the second connecting hole corresponding above and below the screw hole of mandrel bottom, and second
Connecting hole is corresponding up and down with the screw hole of lower glue core seat, by upper and lower corresponding mandrel bottom screw hole, the second connecting hole and lower glue
Bolt is fixedly mounted in the screw hole of core print seat by mandrel bottom, the lower connection boss of lower sleeve gasket ontology and lower glue core seat three simultaneously
It is fixedly connected；Lower connection boss top forms the second limited ring dais to mandrel bottom axial limiting, and mandrel bottom is sleeved on
In two limited ring dais.
It is T-shaped to be equipped with longitudinal cross-section for from-inner-to-outer between on the inside of the lower outside and upper shell of above-mentioned upper movable sealing sleeve
Upper oil-sealing sleeve and upper interstage sleeve, the traversing section of upper interstage sleeve are fixed on the top of shell, in upper movable sealing sleeve lower end outside and shell
The bottom end of upper interstage sleeve between inside is fixedly installed with upper limit set, and the traversing section of upper oil-sealing sleeve is fixedly mounted on the cross of interstage sleeve
To in section, sealing element is fixedly installed between upper limit set and upper oil-sealing sleeve；On the outside of the lower movable sealing sleeve on the inside of shell it
Between be equipped with lower interstage sleeve, the bottom end of shell is fixed on the lower outside of lower interstage sleeve, on the outside of lower movable sealing sleeve between lower interstage sleeve
It is set with the T-shaped lower oil-sealing sleeve in longitudinal cross-section, the traversing section of lower oil-sealing sleeve and lower interstage sleeve bottom end are fixedly mounted, on lower interstage sleeve top
Portion is fixed with the lower limit set for being sleeved on lower movable sealing sleeve upper outside, is fixedly installed between lower limit set and lower oil-sealing sleeve
Sealing element；Bearing assembly includes first bearing, second bearing, 3rd bearing, fourth bearing and 5th bearing, first bearing,
Axial limiting is mounted between mandrel and shell from top to bottom for two bearings, 3rd bearing, fourth bearing and 5th bearing.
Structure of the invention is reasonable and compact, easy to use, and compared to existing rotating blowout preventer rotation assembly, the present invention changes
Gluing core attachment base and gluing core mounting cylinder between the two, between gluing core mounting cylinder, upper movable sealing sleeve and mandrel three with
And the connection type between mandrel, lower movable sealing sleeve and lower glue core mounting base three, make the present invention be easier to dismount, it can be at the scene
Swivel control head rotation assembly is repaired, is maintained, maintenance and transportation cost is effectively reduced, effectively solves existing rotation assembly
Dynamic sealing failure replacement it is difficult, maintenance cycle is long, problem at high cost.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure of existing rotating blowout preventer rotation assembly.
Attached drawing 2 is schematic diagram of main cross-sectional structure of preferred embodiment.
Attached drawing 3 is the main view section view enlarged structure schematic diagram for gluing core attachment base.
Attached drawing 4 is the main view section view enlarged structure schematic diagram for gluing core mounting cylinder.
Attached drawing 5 is the main view section view enlarged structure schematic diagram of upper movable sealing sleeve.
Attached drawing 6 is the main view section view enlarged structure schematic diagram of lower movable sealing sleeve.
Coding in attached drawing is respectively as follows: 1 for gluing core attachment base, and 2 be gluing core mounting cylinder, and 3 be mandrel, 4 be on move it is close
Big envelope, 5 be lower movable sealing sleeve, and 6 be lower glue core mounting base, and 7 be gluing core, and 8 be lower chuck, and 9 be upper connection boss, and 10 be lower company
Connect boss, 11 be shell, and 12 be upper mounting seat body, and 13 be position limiting convex ring, and 14 be interior limit concave station, and 15 be the first threaded hole, 16
It is glue core cylinder for the second threaded hole, 17,18 be upper tapped blind hole, and 19 be sealed groove, and 20 be sealing element, and 21 be connection ring
Platform, 22 be limited ring groove, and 23 be upper sleeve gasket ontology, and 24 be the first connecting hole, and 25 be the first limited ring dais, and 26 be upper sealing
Slot, 27 be outer lug boss, and 28 be lower sleeve gasket ontology, and 29 be the second connecting hole, and 30 be the second limited ring dais, and 31 be upper oil-sealing sleeve,
32 be upper interstage sleeve, and 33 be upper limit set, and 34 be lower interstage sleeve, and 35 be lower oil-sealing sleeve, and 36 be lower limit set, and 37 be first bearing, 38
It is 3rd bearing for second bearing, 39,40 be fourth bearing, and 41 be 5th bearing, and 42 be gluing core print seat, and 43 be gluing core print seat pressure
Lid, 44 be gluing core cylinder, and 45 be driver sleeve, and 46 be upper dynamic sealing, and 47 be lower dynamic sealing, and 48 be lower glue core seat, and 49 be lower glue
Core, 50 be upper retaining ring, and 51 be lower retaining ring, and 52 be upper chuck, and 53 be connection screw thread hole.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 2
Butut mode be described, such as: front, rear, top, and bottom, left and right positional relationship be the cloth according to Figure of description 2
Figure direction determines.
Below with reference to examples and drawings, the invention will be further described:
As shown in attached drawing 2 to 6, the rotating blowout preventer rotation assembly easy to assemble include gluing core attachment base 1, gluing core mounting cylinder 2,
Mandrel 3, upper movable sealing sleeve 4, lower movable sealing sleeve 5 and lower glue core mounting base 6；1 outside of gluing core attachment base is set at interval from top to bottom
Have upper chuck 52 and for the lower chuck 8 that is fixedly connected of gluing core 7, upper chuck 52 with glue the top of core mounting cylinder 2 from upper
Mode is bolted under and to be fixedly mounted；It is integrally fixed with upper connection boss 9 in the inside top of upper movable sealing sleeve 4, on
The bottom of glue core mounting cylinder 2, the upper connection boss 9 of upper movable sealing sleeve 4 and 3 top three of mandrel pass through and are bolted
Mode is fixedly mounted；Lower connection boss 10,3 bottom of mandrel, lower movable sealing sleeve are integrally fixed in lower 5 bottom inside of movable sealing sleeve
5 lower connection boss 10 and 6 three of lower glue core mounting base pass through bolt connecting mode fixed installation；Outside mandrel 3
Side interval is fixedly installed with shell 11, be fixedly installed between the outside of mandrel 3 and 11 inside of shell positioned at upper movable sealing sleeve 4,
Bearing assembly between lower movable sealing sleeve 5.
The gluing core attachment base 1 replaces the gluing core print seat 42 and gluing core print seat gland of existing rotating blowout preventer rotation assembly
43, gluing core attachment base 1 replaces existing gluing core cylinder 44 and gluing core print seat gland with gluing core mounting cylinder 2 with bolt connecting mode
43 screwed connection mode makes the present invention under the premise of being readily disassembled with assembling, in rotation assembly rotary course, effectively avoids
Occur being buckled to and leading to wellhead sealing failure, rotation assembly at the screwed connection of existing gluing core cylinder 44 and gluing core print seat gland 43
Eccentric wear, the occurrence of scrapping, to effectively improve the service life of rotation assembly.Due to gluing core mounting cylinder 2 and gluing
Core attachment base 1 is connected by screw bolts mode, which has played the role of axial limiting to gluing core attachment base 1, institute
Not have to that limiting stand is arranged in gluing core mounting cylinder 2, keep structure of the invention more simplified.
After upper 4 seal failure of movable sealing sleeve, can scene directly unload bolt, take down glue core mounting cylinder 2, remove move it is close
Big envelope 4 is replaced；It follows that the structure setting of upper movable sealing sleeve 4 and gluing core mounting cylinder 2, it is readily disassembled and group
Dress effectively prevent dismantling the case where movable sealing sleeve 4 damages the parts such as mandrel 3, bearing.
After lower 5 seal failure of movable sealing sleeve, live bolt can be directly unloaded, unload lower glue core mounting base 6, moved under removing close
Big envelope 5 is replaced；It follows that the structure setting of lower movable sealing sleeve 5, is readily disassembled and assembles, it effectively prevent dismantling
The case where this lower movable sealing sleeve 5 damages the parts such as mandrel 3, bearing.
From the above mentioned it is found that compared to existing rotating blowout preventer rotation assembly, the present invention change gluing core attachment base 1 with
Glue core mounting cylinder 2 between the two, it is gluing core mounting cylinder 2, between 3 three of upper movable sealing sleeve 4 and mandrel and mandrel 3, lower dynamic
Connection type between 6 three of sealing shroud 5 and lower glue core mounting base, makes the present invention be easier to dismount, and can control at the scene to rotation
Head rotation assembly processed is repaired, is maintained, and maintenance and transportation cost is effectively reduced, effectively solves the dynamic sealing of existing rotation assembly
Failure replacement is difficult, and maintenance cycle is long, problem at high cost.
Above-mentioned rotating blowout preventer rotation assembly easy to assemble can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 3, gluing core attachment base 1 includes upper mounting seat body 12, is equipped in the upper outside of upper mounting seat body 12 upper
Chuck 52,12 lower outside of upper mounting seat body be equipped with for the lower chuck 8 that is fixedly connected at the top of gluing core 7, in upper installation
12 bottom of pedestal is equipped with position limiting convex ring 13, is equipped in 12 upper inner of upper mounting seat body for 45 axial limiting of driver sleeve
Interior limit concave station 14；The first threaded hole 15 is circumferentially intervally distributed on upper chuck 52, circumferentially interval is divided on lower chuck 8
Be furnished with for the second threaded hole 16 for connecting at the top of gluing core 7；It is equipped with and is convenient for the second spiral shell between upper chuck 52 and lower chuck 8
The spacing of installation fastener in pit 16；It is interior limit concave station 14 at upper mounting seat body 12 on the inside of be equipped with for driver sleeve 45
The thread segment being fixedly connected；The longitudinal cross-section of position limiting convex ring 13 is with a narrow upper and lower width trapezoidal.
Upper chuck 52 is fixedly connected with 2 top of gluing core mounting cylinder by installing bolt in the threaded hole of the two.
As shown in Fig. 4, gluing core mounting cylinder 2 includes glue core cylinder 17, is circumferentially spaced and sets on 17 top of glue core cylinder
It is equipped with upper tapped blind hole 18 corresponding with gluing the first about 15 threaded hole of core attachment base 1, by up and down corresponding first
Bolt is fixedly mounted in threaded hole 15 and upper tapped blind hole 18 and is fixedly connected with upper chuck 52 with the top of gluing core mounting cylinder 2；
It is circumferentially arranged at intervals with sealed groove 19 on 17 top of glue core cylinder of upper 18 inside of tapped blind hole, it is solid in sealed groove 19
Dingan County is equipped with sealing element 20；The bottom inside of glue core cylinder 17 is provided with connection land 21, in connection land 21 circumferentially
Be arranged at intervals with corresponding connection screw thread hole 53 above and below the screw hole at the top of mandrel 3, be provided with and be used in connection 21 bottom end of land
To the limited ring groove 22 of upper 4 top axial limiting of movable sealing sleeve.
Pass through the first threaded hole 15 of the upper chuck 52 of upper tapped blind hole 18 and gluing core attachment base 1 in glue core cylinder 17
Glue core cylinder 17 is fixedly connected by interior installation bolt with gluing core attachment base 1.
As shown in Fig. 5, upper movable sealing sleeve 4 includes upper sleeve gasket ontology 23, in the inside top of upper sleeve gasket ontology 23
It is integrally fixed with connection boss 9, is circumferentially equipped at intervals on upper connection boss 9 corresponding with above and below 3 top screw hole of mandrel
First connecting hole 24 is pacified by fixed in upper and lower corresponding connection screw thread hole 53,3 top screw hole of mandrel and the first connecting hole 24
Fill bolt the upper connection boss 9 and 3 top three of mandrel that glue 2 bottom of core mounting cylinder, upper sleeve gasket ontology 23 is fixed simultaneously
Connection；Upper connection 9 bottom end of boss forms the first limited ring dais 25 to 3 top axial limiting of mandrel；In upper 9 outside of connection boss
The top of upper sleeve gasket ontology 23 be circumferentially equipped at intervals with opening up upper seal groove 26, be fixedly mounted in upper seal groove 26
There is sealing element 20,23 top of upper sleeve gasket ontology is integrally fixed with the outer lug boss 27 being sleeved in limited ring groove 22, upper seal groove
26 settings are at 27 top of outer lug boss.
Pass through the first connecting hole in the connection screw thread hole 53 of mutual corresponding connection land 21 up and down, upper movable sealing sleeve 4
24 and the top of mandrel 3 tapped blind hole in bolt is installed, glue core cylinder 17, upper movable sealing sleeve 4 and 3 three of mandrel are linked as one
Body.
As shown in Fig. 6, lower movable sealing sleeve 5 includes lower sleeve gasket ontology 28, in the bottom inside of lower sleeve gasket ontology 28
It is integrally fixed with lower connection boss 10, is circumferentially equipped at intervals on lower connection boss 10 corresponding with above and below 3 bottom screw hole of mandrel
The second connecting hole 29, and the second connecting hole 29 and the screw hole of lower glue core mounting base 6 are corresponding up and down, by corresponding core up and down
Bolt is fixedly mounted in the screw hole of 3 bottom screw hole of axis, the second connecting hole 29 and lower glue core mounting base 6 by 3 bottom of mandrel, lower sealing
The lower connection boss 10 of set ontology 28 is fixedly connected simultaneously with 6 three of lower glue core mounting base；Lower 10 top of connection boss is formed pair
Second limited ring dais 30 of 3 bottom axial limiting of mandrel, 3 bottom of mandrel are sleeved in the second limited ring dais 30.
The screw hole of 3 bottom of the second connecting hole 29 and mandrel of the screw hole of lower glue core mounting base 6, lower movable sealing sleeve 5, San Zheshang
Mandrel 3, lower movable sealing sleeve 5 and lower glue core mounting base 6 can be linked together by same root bolt, make to dismount by lower correspondence
It operates more simple.
As shown in Fig. 2, on the inside of 11 upper end of lower outside and shell of upper movable sealing sleeve 4 between from-inner-to-outer be equipped with it is vertical
The upper oil-sealing sleeve 31 and upper interstage sleeve 32 T-shaped to section, the traversing section of upper interstage sleeve 32 are fixed on the top of shell 11, upper dynamic
The bottom end of upper interstage sleeve 32 between 11 inside of 4 lower end outside of sealing shroud and shell is fixedly installed with upper limit set 33, upper oil-sealing sleeve
31 traversing section is fixedly mounted on the traversing section of interstage sleeve 32, is fixedly installed between upper limit set 33 and upper oil-sealing sleeve 31
Sealing element 20；It is equipped with lower interstage sleeve 34 between lower 5 outside of movable sealing sleeve and 11 inside of shell, the bottom end of shell 11 is fixed on lower block
On the lower outside of set 34, the T-shaped lower oil-sealing sleeve in longitudinal cross-section is set between lower 5 outside of movable sealing sleeve and lower interstage sleeve 34
35, the traversing section of lower oil-sealing sleeve 35 and lower 34 bottom end of interstage sleeve are fixedly mounted, be fixed at the top of lower interstage sleeve 34 under being sleeved on move it is close
The lower limit set 36 of 5 upper outside of big envelope, is fixedly installed with sealing element 20 between lower limit set 36 and lower oil-sealing sleeve 35；Bearing
Component includes first bearing 37, second bearing 38,3rd bearing 39, fourth bearing 40 and 5th bearing 41, first bearing 37,
Axial limiting is mounted on mandrel 3 and shell 11 from top to bottom for two bearings 38,3rd bearing 39, fourth bearing 40 and 5th bearing 41
Between.
The above technical characteristic constitutes highly preferred embodiment of the present invention, with stronger adaptability and best implementation effect
Fruit can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (7)
1. a kind of rotating blowout preventer rotation assembly easy to assemble, it is characterised in that including gluing core attachment base, gluing core mounting cylinder, core
Axis, upper movable sealing sleeve, lower movable sealing sleeve and lower glue core mounting base；It is equipped at intervals with upper chuck from top to bottom on the outside of gluing core attachment base
With the lower chuck for being fixedly connected with gluing core, passes through and be bolted at the top of upper chuck and gluing core mounting cylinder
Mode is fixedly mounted；Integrally be fixed with upper connection boss in the inside top of upper movable sealing sleeve, glue core mounting cylinder bottom, on
Three passes through bolt connecting mode fixed installation at the top of the upper connection boss and mandrel of movable sealing sleeve；In lower dynamic sealing
Set bottom inside is integrally fixed with lower connection boss, mandrel bottom, the lower connection boss of lower movable sealing sleeve and lower glue core mounting base
Three passes through bolt connecting mode fixed installation；It is fixedly installed with shell in mandrel outside spacers, on the outside of mandrel
The bearing assembly being fixedly installed between shell inside between upper movable sealing sleeve, lower movable sealing sleeve.
2. rotating blowout preventer rotation assembly easy to assemble according to claim 1, it is characterised in that gluing core attachment base includes
Upper mounting seat body, upper mounting seat body upper outside be equipped with upper chuck, upper mounting seat body lower outside be equipped with for
The lower chuck being fixedly connected at the top of glue core is equipped with position limiting convex ring in upper mounting seat body bottom, sets in upper mounting seat body upper inner
Have for the interior limit concave station to driver sleeve axial limiting；The first threaded hole is circumferentially intervally distributed on upper chuck,
The second threaded hole for connecting with gluing core top is circumferentially intervally distributed on lower chuck；It is set between upper chuck and lower chuck
Have convenient for installing the spacing of fastener into the second threaded hole；It is interior limit concave station at upper mounting seat body in side be equipped with for drive
The thread segment that dynamic device set is fixedly connected；The longitudinal cross-section of position limiting convex ring is with a narrow upper and lower width trapezoidal.
3. rotating blowout preventer rotation assembly easy to assemble according to claim 2, it is characterised in that gluing core mounting cylinder includes
Glue core cylinder is circumferentially arranged at intervals on corresponding with above and below the first threaded hole of gluing core attachment base in glue core cylinder top
Tapped blind hole, by the way that bolt is fixedly mounted in upper and lower corresponding first threaded hole and upper tapped blind hole by upper chuck and gluing core
It is fixedly connected at the top of mounting cylinder；Glue core cylinder top on the inside of upper tapped blind hole is circumferentially arranged at intervals with sealed groove,
Sealing element is fixedly installed in sealed groove；The bottom inside of glue core cylinder is provided with connection land, in connection land
Circumferentially be arranged at intervals with connection screw thread hole corresponding above and below the screw hole at the top of mandrel, be provided with and be used in connection land bottom end
To the limited ring groove of axial limiting at the top of upper movable sealing sleeve.
4. rotating blowout preventer rotation assembly easy to assemble according to claim 3, it is characterised in that upper movable sealing sleeve includes upper
Sealing shroud ontology is integrally fixed with upper connection boss in the inside top of upper sleeve gasket ontology, on upper connection boss circumferentially
Be equipped at intervals with corresponding first connecting hole above and below screw hole at the top of mandrel, by upper and lower corresponding connection screw thread hole, mandrel top
Be fixedly mounted in portion's screw hole and the first connecting hole bolt by glue core mounting cylinder bottom, upper sleeve gasket ontology upper connection boss and
Three is fixedly connected simultaneously at the top of mandrel；Upper connection boss bottom end forms the first limited ring dais to axial limiting at the top of mandrel；
It is circumferentially equipped at intervals with opening up upper seal groove in the upper sleeve gasket bodies top of upper connection outside the boss, in upper seal groove
It is inside fixedly installed with sealing element, upper sleeve gasket body upper part is integrally fixed with the outer lug boss being sleeved in limited ring groove, upper sealing
Slot is arranged at the top of outer lug boss.
5. rotating blowout preventer rotation assembly easy to assemble according to claim 1 or 2 or 3 or 4, it is characterised in that lower dynamic sealing
Set includes lower sleeve gasket ontology, lower connection boss is integrally fixed in the bottom inside of lower sleeve gasket ontology, in lower connection boss
On be circumferentially equipped at intervals with and the second connecting hole corresponding above and below the screw hole of mandrel bottom, and the spiral shell of the second connecting hole and lower glue core seat
Hole is corresponding up and down, by being fixedly mounted in the screw hole of upper and lower corresponding mandrel bottom screw hole, the second connecting hole and lower glue core seat
The lower connection boss of mandrel bottom, lower sleeve gasket ontology is fixedly connected by bolt simultaneously with lower glue core seat three；Lower connection boss
Top forms the second limited ring dais to mandrel bottom axial limiting, and mandrel bottom is sleeved in the second limited ring dais.
6. rotating blowout preventer rotation assembly easy to assemble according to claim 1 or 2 or 3 or 4, it is characterised in that upper dynamic sealing
From-inner-to-outer is equipped with the T-shaped upper oil-sealing sleeve and upper interstage sleeve in longitudinal cross-section between on the inside of the lower outside and upper shell of set, on
The traversing section of interstage sleeve is fixed on the top of shell, on the inside of the upper movable sealing sleeve lower end outside and shell between upper interstage sleeve bottom
End be fixedly installed with upper limit set, the traversing section of upper oil-sealing sleeve is fixedly mounted on the traversing section of interstage sleeve, upper limit set with
Sealing element is fixedly installed between upper oil-sealing sleeve；Lower interstage sleeve is equipped between on the outside of lower movable sealing sleeve and on the inside of shell, shell
Bottom end is fixed on the lower outside of lower interstage sleeve, and it is T-shaped to be set with longitudinal cross-section between lower interstage sleeve on the outside of lower movable sealing sleeve
Lower oil-sealing sleeve, the traversing section of lower oil-sealing sleeve and lower interstage sleeve bottom end be fixedly mounted, be fixed at the top of lower interstage sleeve be sleeved on it is lower dynamic
The lower limit set of sealing shroud upper outside is fixedly installed with sealing element between lower limit set and lower oil-sealing sleeve；Bearing assembly packet
Include first bearing, second bearing, 3rd bearing, fourth bearing and 5th bearing, first bearing, second bearing, 3rd bearing,
Axial limiting is mounted between mandrel and shell from top to bottom for four bearings and 5th bearing.
7. rotating blowout preventer rotation assembly easy to assemble according to claim 5, it is characterised in that the lower part of upper movable sealing sleeve
From-inner-to-outer is equipped with the T-shaped upper oil-sealing sleeve and upper interstage sleeve in longitudinal cross-section, the cross of upper interstage sleeve between on the inside of outside and upper shell
On the top for being fixed on shell to section, on the inside of the upper movable sealing sleeve lower end outside and shell between upper interstage sleeve the fixed peace in bottom end
Equipped with upper limit set, the traversing section of upper oil-sealing sleeve is fixedly mounted on the traversing section of interstage sleeve, in upper limit set and upper oil-sealing sleeve
Between be fixedly installed with sealing element；Lower interstage sleeve is equipped between on the outside of lower movable sealing sleeve and on the inside of shell, the bottom end of shell is fixed
On the lower outside of lower interstage sleeve, the T-shaped lower oil sealing in longitudinal cross-section is set between lower interstage sleeve on the outside of lower movable sealing sleeve
Set, the traversing section of lower oil-sealing sleeve and lower interstage sleeve bottom end are fixedly mounted, and are fixed with and are sleeved on lower movable sealing sleeve at the top of lower interstage sleeve
Lower limit set on the outside of portion is fixedly installed with sealing element between lower limit set and lower oil-sealing sleeve；Bearing assembly includes first axle
Hold, second bearing, 3rd bearing, fourth bearing and 5th bearing, first bearing, second bearing, 3rd bearing, fourth bearing and
Axial limiting is mounted between mandrel and shell 5th bearing from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613654.6A CN109577903B (en) | 2018-12-27 | 2018-12-27 | Rotary assembly of rotary blowout preventer easy to disassemble and assemble |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613654.6A CN109577903B (en) | 2018-12-27 | 2018-12-27 | Rotary assembly of rotary blowout preventer easy to disassemble and assemble |
Publications (2)
| Publication Number | Publication Date |
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| CN109577903A true CN109577903A (en) | 2019-04-05 |
| CN109577903B CN109577903B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811613654.6A Active CN109577903B (en) | 2018-12-27 | 2018-12-27 | Rotary assembly of rotary blowout preventer easy to disassemble and assemble |
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| CN112253033A (en) * | 2020-12-08 | 2021-01-22 | 中国石油天然气集团有限公司 | Combined type large-drift-diameter rotary control head rotary assembly |
| CN112253035A (en) * | 2020-10-09 | 2021-01-22 | 盐城市荣嘉机械制造有限公司 | Well drilling blowout prevention structure and device thereof |
| CN117948077A (en) * | 2024-03-27 | 2024-04-30 | 山西泰宝科技有限公司 | Rotary assembly sealing device of rotary blowout preventer |
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| CN117948077A (en) * | 2024-03-27 | 2024-04-30 | 山西泰宝科技有限公司 | Rotary assembly sealing device of rotary blowout preventer |
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|---|---|
| CN109577903B (en) | 2024-04-09 |
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Effective date of registration: 20201109 Address after: 100120 Beijing Xicheng District six laying Kang Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 West Drilling and Drilling Engineering Research Institute, 326 South Asia Road, Urumqi Economic and Technological Development Zone, Xinjiang Uygur Autonomous Region Applicant before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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