CN206319850U - Continuous cyclic drilling realizing active sealing formula swivel control head - Google Patents
Continuous cyclic drilling realizing active sealing formula swivel control head Download PDFInfo
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- CN206319850U CN206319850U CN201621113536.5U CN201621113536U CN206319850U CN 206319850 U CN206319850 U CN 206319850U CN 201621113536 U CN201621113536 U CN 201621113536U CN 206319850 U CN206319850 U CN 206319850U
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Abstract
The utility model discloses the rotating cylinder, glue core support tube and glue core cylinder that a kind of continuous cyclic drilling realizing active sealing formula swivel control head includes being arranged in a housing；The rotating cylinder, the glue core support tube and glue core cylinder are set with successively from the outside to the core；Wherein, glue core cylinder inwall inwardly obliquely downwards projection be axially formed it is spaced it is multiple be used to encircling drilling rod conical ring make to help seal structure as multistage pressure, to cooperate extrude glue core cylinder by hydraulic action and encircle drilling rod and realize with the special construction of rotating cylinder, glue core support tube seals；The continuous cyclic drilling realizing active sealing formula swivel control head novelty simple in construction, it can effectively realize that pressure helps envelope function, it is simple to operate and glue core is not easy to wear, can as continuous circulation drilling device the seal apparatus of drilling rod half, the drill string of sealing rotation is realized, the function of shackle in the continuous circulation of drill string is completed.
Description
Technical field
The utility model is related to drilling equipment technical field, more particularly to a kind of continuous cyclic drilling realizing active sealing formula rotation
Control head.
Background technology
Swivel control head is the critical equipment in continuous cyclic drilling equipment, and half seal apparatus is played in continuous EGR
Effect, its function be coordinate other devices formation above and below two seal cavities, upper drilling string male joint pass through swivel control head
In upper seal cavity, the female joint of lower drilling string is insulated in lower seal cavity, female joint injection drilling fluid makes in pit shaft
Keep circulation.During being detained in continuous circulation, connected after the supercharging of top seal cavity with lower cavity, in the drive of power jaw mechanism
Portion's drill string rotating makes its male joint and the female joint of lower drilling string complete to snap through journey；Vice versa for continuous circulation shackle process.
At present, conventional half envelope ram preventer, conventional passive seal can be equipped with as half encapsulation of continuous EGR
Formula swivel control head and other kinds of active swivel control head；Conventional half envelope gate rubber core is directly directly ground by drilling rod
Wipe, the fragile short life of glue core；Conventional passive seal formula swivel control head height is big, and needs leading cone guiding to penetrate glue core, but
Drilling rod can not use leading cone when being detained on continuous EGR.In current published patent, patent CN 204984334U are public
Realizing active sealing formula swivel control head has been opened, but volume is big, weight big, and also using the similar glue core of annular preventer, glue core is closed
The time opened again after conjunction is longer, and unsuitable drill string button of unloading frequently opens, closes the operation of glue core；Patent CN
101761320A discloses realizing active sealing formula swivel control head, and the glue core design of the realizing active sealing formula swivel control head is unreasonable,
Glue core upper-lower seal face does not have pressure to help envelope to act on, and glue core inner is smooth surface with drill string sealing surface, and sealing function is poor, and cavity
Interior pressure is to the helpless envelope effect of sealing between glue core and drill string, it is necessary to which higher sealing oil pressure offsets the pressure in cavity；And
And lower house does not bypass the pressure in release cavity；Note, drain oil design on housing is unreasonable, it is impossible to is rapidly injected, arranges
Go out hydraulic oil, glue core closure, to open efficiency low.
Utility model content
The purpose of this utility model, which is to provide one kind, can realize sealing rotary drill column, complete the drill string continuously upper shackle of circulation
Continuous cyclic drilling realizing active sealing formula swivel control head.
Therefore, technical solutions of the utility model are as follows：
A kind of continuous cyclic drilling realizing active sealing formula swivel control head, including be arranged in a housing rotating cylinder, glue core
Support tube, gluing core platen, lower glue heart platen and glue core cylinder；The rotating cylinder, glue core support tube and glue core cylinder from the outside to the core according to
Secondary suit；Specifically：
Rotating cylinder top inwall and bottom inwall, which extend internally, is respectively formed with ring-shaped step and lower ring-shaped step；
The glue core support tube is sleeved on the glue core cylinder outside, and the top and bottom point of the glue core support tube and glue core cylinder
The lower surface of the upper ring-shaped step and the lower annular are not press-fitted to by the gluing core platen and the lower glue heart platen
On the upper surface of step；The glue core support tube inwall has inwardly convexed to form at least two groups obliquely downwards spaced to be used for
Embrace the conical ring of drilling rod；
The glue core drum outer wall, which caves inward, is formed with an annular groove, makes the glue core support tube and the glue core cylinder
Between be formed with the first annular space space；The internal diameter of the rotating cylinder be more than the glue core support tube external diameter, make the rotating cylinder and
The second annular space space is formed between the glue core support tube；Multiple rows of company is offered vertically on the side wall of the glue core support tube
Lead to the oil-through hole group of first annular space space and second annular space space, being often drained through oilhole group includes along the circumferential direction opening up
Multiple oil-through holes；The feed liquor duct inside and outside the rotating cylinder is communicated with the wall of the rotating cylinder side；
The rotating cylinder is set and is fixed in the housing by upper bearing (metal) system and lower bearing system respectively, is made described
Rotating cylinder can be relative to the housing into rotation；The ring between the housing and the rotating cylinder is provided with the housing sidewall
Absolutely empty connection first through hole and the second through hole；Housing bottom side wall is provided with by-pass prot；The housing top surface and bottom
Third through-hole and drain oil that the annular space space between the housing and the rotating cylinder is connected are respectively equipped with face.
Further, the upper bearing (metal) system is included in set gradually from top to bottom on the rotating cylinder tip side wall upper
Taper roll bearing and upper rolling bearing, and on described taper roll bearing and it is described on be provided between rolling bearing
End ring；The lower bearing system is included in the lower rolling bearing set gradually from top to bottom on the rotating cylinder bottom end side wall
With lower taper roll bearing, and lower bearing back-up ring is provided between the lower rolling bearing and the lower taper roll bearing.
Further, the rotating cylinder includes upper rotating cylinder and lower rotating cylinder；On described on the bottom end face of rotating cylinder
It is along the circumferential direction convex provided with multiple spaced first energy lug bosses and second with distinguishing on the lower rotating cylinder top end face
The portion of rising；Wherein, the first energy lug boss axial length is more than the axial length of second lug boss and described first can be convex
Rise portion can be cooperated with second lug boss, make between the upper rotating cylinder and lower rotating cylinder by lug boss insert be
One.
Further, the seal casinghousing includes top cover labyrinth and lower seal casinghousing；The lower seal casinghousing lower inner diameter
A ring-shaped step for being used to set the rotating cylinder is formed with less than upper inner diameter and at reducing；The top cover labyrinth lid dress is simultaneously
It is fixed on by peripherally disposed multiple first screws on the lower seal casinghousing, the top cover labyrinth bottom surface is press-fitted to
On the top surface of the rotating cylinder.
Further, double sealing circle is provided between the contact wall of the top cover labyrinth and the lower seal casinghousing,
The top cover labyrinth sealing is set to be capped and be fixed on the lower seal casinghousing.
Further, it is described it is upper rotation the drum outer wall wall of the contact with the housing between, the lower rotating cylinder outer wall with
Double sealing circle is provided between the contact wall of the housing.
Further, between the inwall of the outer wall of the gluing core platen and the upper rotating cylinder, the lower glue core platen
With outer wall and the lower rotating cylinder inwall between be also equipped with double sealing circle.
Compared with prior art, the continuous cyclic drilling realizing active sealing formula swivel control head novelty simple in construction, Neng Gouyou
Effect realizes that pressure helps envelope function, simple to operate and glue core is not easy to wear, can be sealed as the drilling rod half of continuous circulation drilling device
Device, realizes the drill string of sealing rotation, completes the function of shackle in the continuous circulation of drill string.
Brief description of the drawings
Fig. 1 is the cross-sectional view of continuous cyclic drilling realizing active sealing formula swivel control head of the present utility model；
Upper rotating cylinders and lower rotation of the Fig. 2 for continuous cyclic drilling realizing active sealing formula swivel control head of the present utility model
Cylinder occlusal surface B is to structural representation；
Fig. 3 is the A-A cross-sectional views of upper rotating cylinder in Fig. 1；
Fig. 4 is the upper rotating cylinder and lower rotating cylinder of continuous cyclic drilling realizing active sealing formula swivel control head of the present utility model
Mutual inserting coordinate dimensional structure diagram；；
Fig. 5 is Fig. 1 partial enlarged drawing；
Fig. 6 shows for the cross-section structure of the glue core cylinder of continuous cyclic drilling realizing active sealing formula swivel control head of the present utility model
It is intended to.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described further to the utility model, but following embodiments are right absolutely not
The utility model has any limitation.
As shown in figure 1, the continuous cyclic drilling realizing active sealing formula swivel control head includes the rotation being arranged in a housing
Cylinder, glue core support tube 5, gluing core platen 6, lower glue core platen 7 and glue core cylinder 8；Wherein, the rotating cylinder, glue core support
Cylinder 5 and glue core cylinder 8 are set with successively from the outside to the core；Specifically：
As shown in figs. 2 to 4, the rotating cylinder includes upper turnbarrel 3 and lower turnbarrel 4；The upper turnbarrel 3
Bottom end face is provided with the first lug boss of multiple circumferentially spaced settings, the top end face of the lower turnbarrel 4
The second lug boss provided with multiple circumferentially spaced settings, first lug boss can be mutual with second lug boss
Coordinate the axial length of inserting and first lug boss to be more than the axial length of second lug boss, make the upper rotary sleeve
Cylinder 3 and the lower turnbarrel insert about 4 and are integrated and were left at inserting liquid gap；
The rotating cylinder top and bottom inwall extend internally and be respectively formed with first annular boss and second annular
Boss；The external diameter of the gluing core platen 6 and the lower glue core platen 7 is consistent with the internal diameter of the rotating cylinder, and center is opened up
There is the through hole consistent with the second annular boss internal diameter with first annular boss；The bottom outer wall of gluing core platen 6 and it is described under
The top outer wall of glue core platen 7, which caves inward, is formed with symmetrical first annular step and the second ring-shaped step, and described first
One group of annular groove respectively symmetrically is offered on the end face of ring-shaped step and second ring-shaped step, the glue core is supported
The top and bottom of cylinder 5 are inserted into the annular groove of the gluing core platen 6 and the lower glue core platen 7 respectively forms branch
Support, the first annular boss and second convex annular are against by the gluing core platen 6 and the lower glue core platen 7 respectively
On the lower surface and upper surface of platform；Wherein, the internal diameter at the first annular boss and second annular boss with it is described on
Glue core platen 6 is consistent with the internal diameter in the central through hole aperture of the lower glue core platen 7 and glue core cylinder 8, and is all higher than boring
Bar external diameter；
The glue core cylinder 8 is sleeved on the inner side of the glue core support tube 5；The top of the glue core cylinder 8 and bottom inwall are equal
Cave inward and be respectively formed with the 3rd annular table cooperated with the first annular step and second ring-shaped step
Rank and fourth annular step；Wherein, it is interior respectively inside top and low side to be provided with as shown in figure 5, glue core cylinder 8 is when pouring
Annular is tightened up a screw connecting plate 17 and the lower screw connection plate 19 of annular, and in connecting plate 17 and the lower screw connection of tightening up a screw
Multiple fixing holes are circumferentially offered on plate 19, are made when the top and bottom of glue core cylinder 8 are inserted respectively and are press-fitted to described
When on gluing core platen 6 and the lower glue core platen 7, by being along the circumferential direction distributed and being axially inserted into the gluing core platen
6 and the lower glue core platen 7 at least ten second screws 16 and at least ten the 3rd screws 18 by the He of gluing core platen 6
The lower glue core platen 7 is fastened on the top and bottom of the glue core cylinder 8, wherein, second screw 16 and the 3rd spiral shell
The bottom of nail 18 is inserted under annular tighten up a screw connecting plate 17 and annular in the fixing hole of screw connection plate 19；
As shown in fig. 6,8 middle part outer walls of the glue core cylinder cave inward and are formed with annular groove, make the glue core support tube 5
The first annular space space is formed between the glue core cylinder 8；The internal diameter of the rotating cylinder is more than the external diameter of the glue core support tube 5,
Make to form the second annular space space between the rotating cylinder and the glue core support tube 5；In the middle part of the side wall of the glue core support tube 5
Multiple rows of oil-through hole group is offered vertically, and being often drained through oilhole includes multiple along the circumferential direction uniform oil-through holes 20；
Glue core cylinder 8 is made of rubber, as shown in fig. 6, its inwall it is local inwardly obliquely downwards it is raised vertically from
Spaced first conical ring and the second conical ring are sequentially formed with above；First conical ring and second taper
The internal diameter of ring is consistent with drilling rod external diameter, and encircling drilling rod makes to help the glue core cylinder of seal structure by the first annular space of entrance as multistage pressure
The effect extruding drilling rod of hydraulic oil plays a part of pressure and helps envelope in space；Wherein, the first conical ring and the second conical ring are separated by
Metric space rubber for being extruded when can store glue core closure；
The housing includes top cover labyrinth 1 and lower seal casinghousing 2；It is provided with the bottom end face of the top cover labyrinth 1
Double sealing circle, makes the top cover labyrinth 1 be fixed on by along the circumferential direction uniform at least 16 the first screws 15 sealing
Housing is formed on the lower seal casinghousing 2 overall；The upper inner diameter of lower seal casinghousing 2 is more than lower inner diameter and the shape at reducing
The ring-shaped steps of Cheng You five, make the rotating cylinder be arranged on the 5th ring-shaped step, top press-fitting has the top cover labyrinth 1
It is fixed；
The upper inner diameter of lower seal casinghousing 2 is more than the external diameter of the rotating cylinder, and the rotating cylinder is by being arranged on top
Upper bearing (metal) system on outer wall sets and is fixed on the lower seal casinghousing 2 with the lower bearing system being arranged on the outer wall of bottom
On the inside of portion；Specifically, the upper bearing (metal) system is upper on the top outer wall of upper rotating cylinder 3 including being successively set on from top to bottom
Taper roll bearing 9 and upper rolling bearing 10, on described taper roll bearing 9 and it is described on be provided between rolling bearing 10
Upper bearing (metal) back-up ring；Accordingly, the lower bearing system includes being successively set on from top to bottom on the bottom outer wall of lower rotating cylinder 4
Lower rolling bearing 12 and lower taper roll bearing 14, between the lower rolling bearing 12 and the lower taper roll bearing 14
It is provided with lower bearing back-up ring 13；Wherein, it is each provided with a convex annular on the outer wall of the upper rotating cylinder 3 and the lower rotating cylinder 4
Edge, spacing or support is carried out to the upper bearing (metal) system and the lower bearing system；
First connected with second annular space space is offered respectively on the offside side wall on the top of lower seal casinghousing 2
The through hole 202 of through hole 201 and second, the first through hole 201 and second through hole 202 are used to inject into the first annular space space
Hydraulic oil；The third through-hole 101 and use for exhaust are also offered respectively in the top cover labyrinth 1 and the lower seal casinghousing 2
In the drain oil 203 of draining；The lower inner diameter of lower seal casinghousing 2 is consistent with the glue core 8 internal diameters of cylinder；In the lower capsul
A by-pass prot 204 for being used to inject drilling fluid is offered on the lower sides of body 2；Wherein, the first through hole 201, the second through hole
202nd, drain oil 204 and third through-hole 101 are processed as screwed connection hole, and the first through hole 201, the second through hole 202, put
Oilhole 203 is connected by connecting pipeline with external hydraulic oil system, and studding blind hole is formed with the week side of boss wall of by-pass prot 204 4
And the by-pass prot 204 is connected by crossover sub with outside borehole fluid system；In the through hole of first through hole 201 and second
Choke valve is installed in 202 connecting pipeline；
It is this described top cover labyrinth 1 because the device by applying pressure to glue core cylinder 8 to hydraulic oil realizes sealing function
Caved inward on the upside of 5th ring-shaped step of bottom inwall and the lower seal casinghousing 2 and be formed with the 6th ring-shaped step and the 7th
Ring-shaped step, and on described between the outer wall of rotating cylinder 3 and the contact wall of the 6th ring-shaped step and the lower rotation
Double sealing circle is provided between the outer wall and the contact wall of the 7th ring-shaped step of cylinder 4；In addition in the gluing core platen 6
Outer wall and the upper rotating cylinder 3 inwall between, the lower glue core platen 7 and outer wall and the lower rotating cylinder 4 inwall
Between be also equipped with double sealing circle.
The continuous cyclic drilling realizing active sealing formula swivel control head is used cooperatively when using with many flashboard pressure seal arrangements,
Specifically, the connection that many flashboard pressure seal arrangements pass through the bottom of the continuous cyclic drilling realizing active sealing formula swivel control head
Flange 205 is connected；Glue core cylinder 8 produces radial deformation under the extruding of hydraulic oil and encircles brill to central axial direction extruding
Rotary drill column is driven on outer surface of column, top, and glue core is rotated with drill string, the associated mechanisms that lower drilling string passes through many flashboard pressure seal arrangements
Fix and clamp lower drilling string, complete the shackle and upper button operation of drill string；Concrete operation step is as follows：
1) equipment prepares：By the flange connection 205 and bottom Duo Zha of continuous cyclic drilling realizing active sealing formula swivel control head
Plate pressure seal arrangement is connected, and bypass 204 is connected by crossover sub to related ground circulation of drilling fluid pipeline, oil circuit control system
System is connected with through hole 201,202 and drain oil 203；
2) equipment works：
1. shackle：Above carry drill string, drill string joints in place after, oil path control system passes through first through hole 201, the second through hole
202 injection hydraulic oil, third through-hole 101 opens exhaust initial stage in hydraulic oil injection, and third through-hole is closed after hydraulic oil exhaust
101, continue to inject hydraulic oil and make to be full of hydraulic oil at glue core drum outer wall, hydraulic oil promotes the wall of glue core cylinder 8 radially to become
Shape encircles drill string outer surface to central axial direction extruding, is reached when the oil pressure sensor being arranged in housing detects oil pressure pressure
To stopping injection hydraulic oil during certain value；The connecting line being connected with by-pass prot 204 is opened, passes through the bypass of lower seal casinghousing 2
Hole 204 is injected into device cavity after drilling fluid is filled in drilling fluid, cavity, closes the corresponding connecting line of by-pass prot 204, leads to
The by-pass prot for crossing many flashboard pressure seal arrangements in bottom continues injection drilling fluid into cavity and is pressurized in cavity liquid, many flashboards
The associated mechanisms of pressure seal arrangement are fixed and clamp lower drill string part, and upper drilling string, which is reversely rotated, completes shackle；Slightly above carry and unloading
Drill string, when the drill string male joint in place after, close two chambers above and below the blind rams of many flashboard pressure seal arrangements, formation
Body, is again turned on the corresponding connecting line of by-pass prot (204), makes discharge opeing pressure release in upper cavity, then empties the brill in upper cavity
Well liquid；Outage 203 is opened, oil pressure is discharged, makes glue core cylinder 8 above propose to unload drill string after resetting, the continuous of lower step can be carried out
Operation is detained in circulation.
2. it is upper to detain：Drill string male joint reaches precalculated position through the tapered ring part of glue core cylinder 8, and oil path control system passes through the
One through hole 201 and the second through hole 202 injection hydraulic oil, hydraulic oil promote the wall of glue core cylinder 8 radially deformed to axis direction
Extruding encircles drill string outer surface and forms sealing, stops injection when oil pressure pressure reaches certain value；The correspondence of by-pass prot 204 is kept to connect
Adapter road is closed, and injecting drilling fluid into cavity by drill string male joint makes to fill drilling fluid in upper cavity and increase
Pressure, opens blind rams when pressure reaches that pressure in lower cavity is identical in upper cavity, makes drill string slow in sealed states
Speed rotation decentralization, the female joint with bottom completes to detain；Open the corresponding connecting line of by-pass prot 204, cavity discharge opeing pressure release to chamber
Internal drilling fluid emptying, that is, complete other subsequent process steps of continuous upper button；Outage 203 is opened, hydraulic oil pressure is discharged,
Glue core cylinder 8 resets, and snaps through journey in completion, you can continue other drilling operations.
Claims (7)
1. a kind of continuous cyclic drilling realizing active sealing formula swivel control head, it is characterised in that including the rotation being arranged in a housing
Rotating cylinder, glue core support tube (5), gluing core platen (6), lower glue heart platen (7) and glue core cylinder (8)；The rotating cylinder, the support of glue core
Cylinder (5) and glue core cylinder (8) are set with successively from the outside to the core；
Rotating cylinder top inwall and bottom inwall, which extend internally, is respectively formed with ring-shaped step and lower ring-shaped step；It is described
Glue core support tube (5) is sleeved on the outside of the glue core cylinder (8), and the top of the glue core support tube (5) and glue core cylinder (8)
It is press-fitted to the lower end of the upper ring-shaped step by the gluing core platen (6) and the lower glue heart platen (7) respectively with bottom
On face and the upper surface of the lower ring-shaped step；Glue core support tube (5) inwall has inwardly been convexed to form at least obliquely downwards
Two groups of spaced conical rings for being used to embrace drilling rod；
Described glue core cylinder (8) outer wall, which caves inward, is formed with an annular groove, makes the glue core support tube (5) and glue core cylinder
(8) the first annular space space is formed between；The internal diameter of the rotating cylinder is more than the external diameter of the glue core support tube (5), makes described
The second annular space space is formed between rotating cylinder and the glue core support tube (5)；Along axle on the side wall of the glue core support tube (5)
To the oil-through hole group for offering multiple rows of connection first annular space space and second annular space space, being often drained through oilhole group includes
The multiple oil-through holes (20) along the circumferential direction opened up；The inlet opening inside and outside the rotating cylinder is communicated with the wall of the rotating cylinder side
Road；
The rotating cylinder is set and is fixed in the housing by upper bearing (metal) system and lower bearing system respectively, makes the rotation
Cylinder can be relative to the housing into rotation；The annular space between the housing and the rotating cylinder is provided with the housing sidewall empty
Between the first through hole (201) that connects and the second through hole (202)；Housing bottom side wall is provided with by-pass prot；The housing top
Annular space space is connected between the housing and the rotating cylinder third through-hole (101) and drain the oil are respectively equipped with face and bottom surface
Hole (203).
2. continuous cyclic drilling realizing active sealing formula swivel control head according to claim 1, it is characterised in that the upper axle
The system of holding is included in the upper taper roll bearing (9) and the upper axis of rolling set gradually from top to bottom on the rotating cylinder tip side wall
Hold (11), and upper bearing (metal) back-up ring (10) is provided with described between taper roll bearing (9) and the upper rolling bearing (11)；
The lower bearing system be included in the lower rolling bearing (12) that is set gradually from top to bottom on the rotating cylinder bottom end side wall and under
Taper roll bearing (14), and under being provided between the lower rolling bearing (12) and the lower taper roll bearing (14)
End ring (13).
3. continuous cyclic drilling realizing active sealing formula swivel control head according to claim 1, it is characterised in that the rotation
Cylinder includes upper rotating cylinder (3) and lower rotating cylinder (4)；On described on the bottom end face of rotating cylinder (3) and the lower rotating cylinder (4)
Respectively along the circumferential direction can lug boss and the second lug boss provided with multiple spaced first on the end face of top；Wherein, it is described
First can axial length of the lug boss axial length more than second lug boss and the first energy lug boss and described second
Lug boss can cooperate, and make to be integrated by lug boss inserting between the upper rotating cylinder (3) and lower rotating cylinder (4).
4. continuous cyclic drilling realizing active sealing formula swivel control head according to claim 1, it is characterised in that the sealing
Housing includes top cover labyrinth (1) and lower seal casinghousing (2)；Lower seal casinghousing (2) lower inner diameter be less than upper inner diameter and
A ring-shaped step for being used to set the rotating cylinder is formed with reducing；Top cover labyrinth (1) the lid dress simultaneously passes through circumferentially side
It is fixed on to multiple first screws (15) of setting on the lower seal casinghousing (2), top cover labyrinth (1) bottom surface is press-fitted to institute
State on the top surface of rotating cylinder.
5. continuous cyclic drilling realizing active sealing formula swivel control head according to claim 4, it is characterised in that on described
Double sealing circle is provided between the contact wall of closure (1) and the lower seal casinghousing (2), makes the top cover labyrinth (1) close
Envelope is capped and is fixed on the lower seal casinghousing (2).
6. continuous cyclic drilling realizing active sealing formula swivel control head according to claim 3, it is characterised in that the upper rotation
Between rotating cylinder (3) the outer wall wall of the contact with the housing, lower rotating cylinder (4) outer wall contact with housing wall it
Between be provided with double sealing circle.
7. continuous cyclic drilling realizing active sealing formula swivel control head according to claim 3, it is characterised in that the gluing
Between the inwall of the outer wall of core platen (6) and the upper rotating cylinder (3), the lower glue core platen (7) and outer wall with it is described under
Double sealing circle is also equipped between the inwall of rotating cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113536.5U CN206319850U (en) | 2016-10-11 | 2016-10-11 | Continuous cyclic drilling realizing active sealing formula swivel control head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113536.5U CN206319850U (en) | 2016-10-11 | 2016-10-11 | Continuous cyclic drilling realizing active sealing formula swivel control head |
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| Publication Number | Publication Date |
|---|---|
| CN206319850U true CN206319850U (en) | 2017-07-11 |
Family
ID=59262354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113536.5U Active CN206319850U (en) | 2016-10-11 | 2016-10-11 | Continuous cyclic drilling realizing active sealing formula swivel control head |
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| Country | Link |
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| CN (1) | CN206319850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285545A (en) * | 2016-10-11 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | Continuous cyclic drilling realizing active sealing formula swivel control head and upper shackle method thereof |
| CN109577903A (en) * | 2018-12-27 | 2019-04-05 | 中国石油集团西部钻探工程有限公司 | Rotating blowout preventer rotation assembly easy to assemble |
-
2016
- 2016-10-11 CN CN201621113536.5U patent/CN206319850U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285545A (en) * | 2016-10-11 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | Continuous cyclic drilling realizing active sealing formula swivel control head and upper shackle method thereof |
| CN106285545B (en) * | 2016-10-11 | 2019-04-12 | 中国石油集团渤海钻探工程有限公司 | Continuous cyclic drilling realizing active sealing formula swivel control head and thereon shackle method |
| CN109577903A (en) * | 2018-12-27 | 2019-04-05 | 中国石油集团西部钻探工程有限公司 | Rotating blowout preventer rotation assembly easy to assemble |
| CN109577903B (en) * | 2018-12-27 | 2024-04-09 | 中国石油天然气集团有限公司 | Rotary assembly of rotary blowout preventer easy to disassemble and assemble |
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