CN208981995U - Installation tool for marine drilling casing head and sealing device - Google Patents
Installation tool for marine drilling casing head and sealing device Download PDFInfo
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- CN208981995U CN208981995U CN201821587831.3U CN201821587831U CN208981995U CN 208981995 U CN208981995 U CN 208981995U CN 201821587831 U CN201821587831 U CN 201821587831U CN 208981995 U CN208981995 U CN 208981995U
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Abstract
The utility model discloses a kind of installation tools for marine drilling casing head and sealing device, comprising: central tube, central tube offer runner；End cap, piston cylinder and the inner piston cylinder being set in outside central tube, end cap, piston cylinder, inner piston cylinder and central, tubular are provided with communicating valve, have press section on piston cylinder side wall at an annular space in annular space；Hung drum between interior piston cylinder and piston cylinder is set, first through hole is offered on end cap, the second through-hole is offered on piston cylinder, the connecting rod for connecting hung drum is equipped in first through hole and the second through-hole, flexible shear pin is set on hung drum；Rotating cylinder between hung drum and inner piston cylinder is set, is caught in set；The opening lock ring of interior piston cylinder lower end is set, and being caught in set can move up and down with rotating cylinder and then make to be caught in the gap that set is caught between opening lock ring and inner piston cylinder.Casing head and sealing device can be conveniently sent into from marine riser and be mounted in underwater well head by the application.
Description
Technical field
The utility model relates to a kind of ocean deepwater drilling power tools, in particular to a kind of to be used for marine drilling set
The installation tool of tube head and sealing device.
Background technique
Marine oil and gas resource has become the important sources of energy supply.Due to the influence of the depth of water in ocean, it is located at deep water
The marine exploration and development and land oil-gas exploration and development in region have huge difference, need using underwater well head and matched peace
Holding tool installs wellhead equipment, so lays the foundation to be drilled going on smoothly for well construction with subsea production tree installation.Underwater well
Mouth internal sleeve is equipped with multilayer sleeve head and sealing device, and casing head is used for connecting sleeve, and the weight of casing string is applied under water
On well head, sealing device blocks the annular space between casing head and underwater well head, the annular of separation sleeve tube head top and lower section
Space provides safe and reliable pressure environment for oil/gas well production.
When installing casing head, need casing head and sealing device using dedicated installation tool together from marine riser
Send to underwater well head, and casing head connect and sealed with underwater well head, last installation tool and casing head be detached from and from every
In taking in water pipe, start next stage drillng operation.The structure of installation tool not only influences the operation of casing head and sealing device
Step, the process of well cementing operation can also be generated it is certain influence, therefore, need a kind of reasonable mechanical structure, simplified operation step
Suddenly, the higher installation tool of reliability.
Utility model content
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide for the utility model embodiment
A kind of installation tool for marine drilling casing head and sealing device, can be conveniently by casing head and sealing device
It is sent into and is mounted in underwater well head from marine riser.
The specific technical solution of the utility model embodiment is:
A kind of installation tool for marine drilling casing head and sealing device, the installation tool includes:
Central tube with axis, the central tube offer runner along the vertical direction；
End cap, piston cylinder and the inner piston cylinder being set in outside the central tube, the end cap, the piston cylinder, it is described in
Piston cylinder and the central, tubular are provided with communicating valve in the annular space, the communicating valve controls institute at an annular space
State the connection and disconnection of runner Yu the annular space, there is press section on the piston cylinder side wall, the piston cylinder with it is described
Sliding can be generated between inner piston cylinder, so that the press section moves down；
Hung drum between the inner piston cylinder and the piston cylinder is set, offers first through hole on the end cap,
The second through-hole is offered on the piston cylinder, is equipped in the first through hole and second through-hole for connecting the suspension
The connecting rod of cylinder is provided with the elastic shear pin for being clamped with sealing device on the lateral wall of the hung drum；
Rotating cylinder between the hung drum and the inner piston cylinder is set, is connected to being caught in for the rotating cylinder lower end
Set, the rotating cylinder and described be caught between set can rotate, and be threadedly coupled between inner piston cylinder and the rotating cylinder, institute
Stating hung drum can drive the rotating cylinder to rotate, and can generate cunning between the hung drum and the rotating cylinder in the axial direction
It is dynamic；
The opening lock ring of interior piston cylinder lower end is set, and the opening lock ring is described to be caught in for fastening with casing head
Set can move up and down with the rotating cylinder and then make described to be caught in set and be caught between the opening lock ring and the inner piston cylinder
Gap.
In a preferred embodiment, the outer cylinder being fixed on the end cap, the piston cylinder and described outer
It is connected between cylinder by shear pin.
In a preferred embodiment, aperture is offered on the side wall of the central tube；The communicating valve includes: valve
Body, the interior through hole having in the axial direction of the valve body, the intercommunicating pore being connect with through hole；Valve in through hole is set
Core, elastic component, one end of the elastic component resist the spool, and the other end of the elastic component resists the central tube so that institute
It states spool and cuts off the aperture and the annular space, the lower end surface of the prominent valve body in the lower end of the spool, when the valve
When the lower end surface stress of core moves up the valve body, the aperture is connected to by intercommunicating pore with the annular space.
In a preferred embodiment, the upper surface of the piston cylinder is connected with the annular space.
In a preferred embodiment, the end cap fixed sleeves are equipped with outer cylinder, the side of the outer cylinder and piston cylinder
Shear pin is provided between wall.
In a preferred embodiment, there is the keyway extended in the axial direction, institute on the inner wall of the hung drum
It states and pin block is installed on rotating cylinder, the pin block is embedded in the keyway.
In a preferred embodiment, the rotating cylinder is connected with described be caught between set by annular interconnecting piece
It connects, the lower end for being caught in set offers the notch extended in the axial direction, is fixedly installed on the side wall of the inner piston cylinder
Flat key, the flat key are embedded in the notch.
In a preferred embodiment, the lateral wall of the hung drum offers blind hole, the elasticity shear pin installation
In the blind hole.
In a preferred embodiment, the lower end of the central tube is connected with lower contact, the side of the lower contact
There is limiting section on wall, when the gap for being caught in and covering and being caught between the opening lock ring and the inner piston cylinder, the limit
Position portion resists the inner piston cylinder.
In a preferred embodiment, there is lug boss, the lug boss can support on the lateral wall of the hung drum
State the press section of piston cylinder in residence.
The technical solution of the utility model have it is following significant the utility model has the advantages that
In the application for marine drilling casing head and sealing device installation tool can by casing head and sealing device from
It is sent in marine riser to seabed, and casing head is fixed in underwater well head by rotating, lifting drilling rod and apply hydraulic mode
And annulus space is insulated by sealing device.And in entire work progress have installation free step is few, operation difficulty is small,
Installation reliability height and permission annular space wait solidifying the advantages of building the pressure.
Referring to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies practical
Novel principle can be in a manner of adopted.It should be understood that the embodiments of the present invention in range not thus by
Limitation.In the range of the spirit and terms of appended claims, the embodiments of the present invention includes many changes, modifications
With it is equivalent.The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.
Fig. 1 is that the structure in the utility model embodiment for the installation tool of marine drilling casing head and sealing device is shown
It is intended to；
Fig. 2 is the installation tool and casing that marine drilling casing head and sealing device are used in the utility model embodiment
The structural schematic diagram that head, sealing device connect；
Fig. 3 is to complete to install for the installation tool of marine drilling casing head and sealing device in the utility model embodiment
Set working state schematic representation.
The appended drawing reference of the figures above:
1, end cap；11, first through hole；2, central tube；21, runner；22, aperture；3, piston cylinder；31, press section；32,
Two through-holes；4, inner piston cylinder；41, flat key；5, annular space；6, communicating valve；61, valve body；62, through hole；63, intercommunicating pore；64,
Spool；65, elastic component；7, connecting rod；8, hung drum；81, keyway；82, lug boss；9, elastic shear pin；10, rotating cylinder；101,
Pin block；12, it is caught in set；13, be open lock ring；14, outer cylinder；15, shear pin；16, lower contact；17, drilling rod；18, sealing device；
19, casing head；20, cementing tool；23, casing；24, underwater well head.
Specific embodiment
In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood
Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without
It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that
Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.It needs to illustrate
It is that when element is referred to as " being set to " another element, it can directly on the other element or there may also be placed in the middle
Element.When an element is considered as " connection " another element, it can be directly to another element or can
Centering elements can be existed simultaneously.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or
Electrical connection, the connection being also possible to inside two elements can be directly connected, can also indirectly connected through an intermediary,
For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.Made herein
Term " vertical ", " horizontal ", "upper", "lower", "left", "right" and similar statement simply to illustrate that mesh
, it is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
In order to which casing head and sealing device are sent into from marine riser conveniently and are mounted in underwater well head,
A kind of installation tool for marine drilling casing head and sealing device is proposed in the application, Fig. 1 is the utility model implementation
The structural schematic diagram of the installation tool of marine drilling casing head and sealing device is used in example, as shown in Figure 1, the installation tool can
To include: the central tube 2 with axis, central tube 2 offers runner 21 along the vertical direction；The end cap being set in outside central tube 2
1, piston cylinder 3 and inner piston cylinder 4, end cap 1, piston cylinder 3, inner piston cylinder 4 and central tube 2 form an annular space 5, annular space
Communicating valve 6 is provided in 5, communicating valve 6 controls the connection and disconnection of runner 21 and annular space 5, has on 3 side wall of piston cylinder and press
Splenium 31 can generate sliding between piston cylinder 3 and inner piston cylinder 4, so that press section 31 moves down；Setting interior piston cylinder 4 with
Hung drum 8 between piston cylinder 3 offers first through hole 11 on end cap 1, and the second through-hole 32 is offered on piston cylinder 3, and first is logical
It is equipped with the connecting rod 7 for connecting hung drum 8 in hole 11 and the second through-hole 32, is provided with and is used on the lateral wall of hung drum 8
The elastic shear pin 9 being clamped with sealing device 18；Rotating cylinder 10 between hung drum 8 and inner piston cylinder 4 is set, is connected to
10 lower end of rotating cylinder is caught in set 12, rotating cylinder 10 and is caught between set 12 and can rotate, inner piston cylinder 4 and rotating cylinder 10
Between be threadedly coupled, hung drum 8 can drive rotating cylinder 10 to rotate, and can produce in the axial direction between hung drum 8 and rotating cylinder 10
Raw sliding；The opening lock ring 13 of interior 4 lower end of piston cylinder is set, and opening lock ring 13 is caught in set for fastening with casing head 19
12 can move up and down with rotating cylinder 10 and then make to be caught in the gap that set 12 is caught between opening lock ring 13 and inner piston cylinder 4.
As shown in Figure 1, central tube 2 offers runner 21 along the vertical direction, the upper end of central tube 2 offers internal screw thread,
For jointed rod 17.The mode that the lower end of central tube 2 is connected through a screw thread is connected with lower contact 16, on the side wall of lower contact 16
With limiting section, when being caught in the gap that set 12 is caught between opening lock ring 13 and inner piston cylinder 4, limiting section resists inner piston cylinder
4, so that inner piston cylinder 4 be avoided further to move down.Sealing ring can be set between lower contact 16 and central tube 2, to guarantee two
Air-tightness between person.Aperture 22 is offered on the side wall of central tube 2, by the aperture 22 and communicating valve 6, in central tube 2
Runner 21 can be conducted with annular space 5.
As shown in Figure 1, end cap 1 is set in outside central tube 2, it is mutually solid by pin, screw etc. between end cap 1 and central tube 2
Fixed connection.Piston cylinder 3 and inner piston cylinder 4 are set in outside central tube 2, end cap 1,2 shape of piston cylinder 3, inner piston cylinder 4 and central tube
At an annular space 5, specifically, the lateral wall of the upper end of piston cylinder 3 is close to the inner sidewall of end cap 1,4 upper end of inner piston cylinder
The inner sidewall of lateral wall and piston cylinder 3 offset, the inner wall of inner piston cylinder 4 is mutually close to the lateral wall of central tube 2, inner piston cylinder
It can be relatively moved between 4 and central tube 2 in axis direction.The upper end of piston cylinder 3 between end cap 1 and inner piston cylinder 4,
Piston cylinder 3 can be moved up and down.The upper surface of piston cylinder 3 is connected with annular space 5, the pressure in annular space 5
When increase, the upper surface of piston cylinder 3 is subject to downward pressure, when pressure to a certain degree when, piston cylinder 3 will be to moving down
It is dynamic.Sealing ring can be set between piston cylinder 3 and end cap 1, sealing ring can be set between piston cylinder 3 and inner piston cylinder 4,
Sealing ring can be set between inner piston cylinder 4 and central tube 2, the air-tightness between can guaranteeing through the above way.
As shown in Figure 1, having press section 31 on 3 side wall of piston cylinder, cunning can be generated between piston cylinder 3 and inner piston cylinder 4
It is dynamic, so that press section 31 moves down.Fig. 3 is to complete in the utility model embodiment for the installation tool of casing head and sealing device
Installation sets working state schematic representation, as shown in figure 3, being used for will be in sealing device 18 when press section 31 moves down
Sealing material preferably push the annulus space blocked between casing head 19 and underwater well head 24, simultaneously, moreover it is possible to give erector
Have external annular space and applies downward pressure, so that the lower depression cement slurry of sealing device 18, and then improve the sealing matter of cement slurry
Amount.
As shown in Figure 1, the top in annular space 5 is arranged in communicating valve 6, runner 21 and annular space 5 can control
Connection and disconnection.Communicating valve 6 may include: valve body 61, have through hole 62 and through hole in the axial direction in valve body 61
The intercommunicating pore 63 of 62 connections；Spool 64, elastic component 65 in through hole 62 are set, one end of elastic component 65 resists spool 64,
The other end of elastic component 65 resists central tube 2 so that spool 64 cuts off aperture 22 and annular space 5, the prominent valve in the lower end of spool 64
The lower end surface of body 61, when the lower end surface stress of spool 64 moves up valve body 61, the aperture 22 of central tube 2 passes through intercommunicating pore
63, through hole 62 is connected to annular space 5.It can be fixedly connected by screw etc. between valve body 61 and central tube 2, to avoid valve
Body 61 rotates and causes aperture 22 that can not be aligned with intercommunicating pore 63.Sealing ring can be set between valve body 61 and end cap 1, to protect
The air-tightness of card between the two.
In a preferred embodiment, first runner 21 and second flow channel 21 are offered in spool 64, when communicating valve 6
When being in an off state, the first runner 21 of spool 64 is opposite by intercommunicating pore 63 and aperture 22, and first runner 21 is connected to aperture
22 with the upper surface of spool 64.When communicating valve 6 is in connected state, 21 intercommunicating pore 63 of second flow channel of spool 64 and aperture 22
Relatively, second flow channel 21 is connected to the lower end surface of aperture 22 and spool 64, i.e. connection aperture 22 and annular space 5.
As shown in Figure 1, hung drum 8 is arranged between interior piston cylinder 4 and piston cylinder 3.It is offered in the axial direction on end cap 1
First through hole 11 offers the second through-hole 32 on piston cylinder 3 in the axial direction, is equipped in first through hole 11 and the second through-hole 32
For connecting the connecting rod 7 of hung drum 8, it is connected between connecting rod 7 and hung drum 8 by screw thread, is arranged on the side wall of end cap 1
There is snap ring, snap ring is used to resist the upper end of connecting rod 7, prevents connecting rod 7 from easing out.It is provided with and is used on the lateral wall of hung drum 8
The elastic shear pin 9 being clamped with sealing device 18.In a kind of feasible embodiment, the lateral wall of hung drum 8 is offered
Blind hole, elastic shear pin 9 are mounted in blind hole.
As shown in Figure 1, having lug boss 82 on the lateral wall of hung drum 8, lug boss 82 can resist the press section of piston cylinder 3
31, so that the degree moved down to piston cylinder 3 controls.
As shown in Figure 1, outer cylinder 14 is fixed on end cap 1, pass through 15 phase of shear pin between piston cylinder 3 and outer cylinder 14
Connection, when shear pin 15 is cut off by piston cylinder 3, piston cylinder 3 can move in the axial direction.
As shown in Figure 1, rotating cylinder 10, be caught in set 12 be arranged between hung drum 8 and inner piston cylinder 4, be caught in set 12 connection
In 10 lower end of rotating cylinder.Rotating cylinder 10 be caught in set 12 between by annular interconnecting piece be connected, in this way, rotating cylinder 10 be caught in
Set 12 between can rotate, while rotating cylinder 10 and be caught in set 12 between other side can be driven to move in the axial direction each other
It is dynamic.Be threadedly coupled between inner piston cylinder 4 and rotating cylinder 10, the lateral wall of inner piston cylinder 4 offers external screw thread, rotating cylinder 10 it is interior
Wall offers internal screw thread, and so the two is connected, and when rotating cylinder 10 rotates, can drive inner piston cylinder 4 in the axial direction
It moves up and down.
As shown in Figure 1, having the keyway 81 extended in the axial direction on the inner wall of hung drum 8, it is equipped on rotating cylinder 10
Pin block 101, pin block 101 are embedded in keyway 81.By the above-mentioned means, hung drum 8 can drive rotating cylinder 10 to rotate, and hung drum 8
Sliding can be generated in the axial direction between rotating cylinder 10.
As shown in Figure 1, the setting of opening lock ring 13, in interior 4 lower end of piston cylinder, the lock ring 13 that is open is used for and 19 phase card of casing head
It closes.The lower end for being caught in set 12 offers the notch extended in the axial direction, is fixedly installed flat key on the side wall of inner piston cylinder 4
41, flat key 41 is embedded in notch.By the above-mentioned means, being caught in set 12 can move up and down with rotating cylinder 10 and then make to be caught in 12 card of set
The gap for entering to be open between lock ring 13 and inner piston cylinder 4, so that opening lock ring 13 is opened with clamping casing head 19.
In the application installation tool use process is as follows: Fig. 2 be the utility model embodiment in be used for marine drilling set
The structural schematic diagram that the installation tool of tube head and sealing device is connect with casing head, sealing device, as shown in Fig. 2, by central tube 2
It is connected with drilling rod 17 by screw thread, lifts installation tool using drilling rod 17, by sealing device 18 from the lower square set of installation tool
Enter, when elastic 9 contact sealing device 18 of shear pin on the lateral wall of hung drum 8 retracts in hung drum 8, and installation tool is allowed to continue
Downlink, when elastic shear pin 9 comes downwards to the rectangular channel of sealing device 18, the elastic pop-up of shear pin 9 is protruded into rectangular channel, stops decentralization
Drill string completes the connection of installation tool and sealing device 18.
The lower end of central tube 2 is threadedly coupled by lower contact 16 with 20 phase of cementing tool, is then lifted drill string, will be installed
Tool is migrated together with sealing device 18 to rig floor, and casing head 19 and casing 23 are completed to connect and be placed on rig floor, transfers drill string,
When the conical surface of piston cylinder 3 in hung drum 8 and the conical surface of casing head 19 are adjacent to, stop decentralization drill string.Then, brill is rotated to the left
Column, so that drill string drives central tube 2, end cap 1, connecting rod 7, piston cylinder 3, hung drum 8, rotating cylinder 10 to rotate, due to rotating cylinder
It is threadedly coupled between 10 and inner piston cylinder 4, can form the effect of screw mechanism, rotating cylinder 10, which rotates and then makes to be caught in set 12, to be strutted
Be open lock ring 13, is embedded in it in groove of casing head 19, and the lower end surface for being caught in set 12, which is migrated to stopping in inner piston cylinder 4, continues
It moves down, stop rotating drilling rod 17, completes the connection of installation tool and casing head 19.
After installation tool is connect with sealing device 18, casing head 19, lift drilling rod 17, removes rig floor slip system, under
Drilling rod 17 is put, so that installation tool, sealing device 18, casing head 19, casing are sent into seabed from marine riser.
When installation tool and casing head 19 are close to underwater well head 24, the lowering velocity of drilling rod 17 can be reduced, observation is flat
Platform hook load size, when load reduction, casing head 19 is resisted against underwater well head 24 or upper one layer of casing head 19 at this time, stops
Lowering drill pipes 17.Then it can be pumped into cement into drilling rod 17, to start cementing well.In the process, can pass through
The hydraulic device 2MPa to 4MPa that builds the pressure into annular space to improve the cementing quality of oil gas cementing slurry for well guarantees the close of cementing concrete
Seal effect；At the same time it can also mark circumferential position and the upright position of drill string on platform.Then drilling rod 17 is rotated to the right, is bored
Bar 17 drives central tube 2, valve body 61, end cap 1, connecting rod 7, piston cylinder 3, hung drum 8, rotating cylinder 10 to rotate to the right, due to rotation
It is threadedly coupled between rotating cylinder 10 and inner piston cylinder 4, can form the effect of screw mechanism, the drive of rotating cylinder 10 is caught in set 12 to moving up
It is dynamic, when the lower end surface for being caught in set 12 is parallel with the opening upper surface of lock ring 13, lock ring 13 is open under the action of natural resiliency
It is contracted to inner piston cylinder 4, at this point, installation tool is freed with the realization of casing head 19.
When drilling rod 17 continues rotation to pre- fixing turn, the rotation of rotating cylinder 10 rises to certain altitude, and pin block 101 is detached from suspension
The keyway 81 of cylinder 8, rotating cylinder 10 stops operating at this time.Then, lowering drill pipes 17, drilling rod 17 drive end cap 1, piston cylinder 3, connection
Bar 7,8 downlink of hung drum, the reduced space of annular space 5, the hydraulic coupling in annular space 5 increase, and hydraulic coupling pushes communicating valve 6
In 64 uplink of spool be connected to inside annular space 5 and central tube 2, the fluid in annular space 5 in this way, communicating valve 6 is opened
It is flowed into the runner 21 of central tube 2 through communicating valve 6.Apply axial force, sealing device 18 to sealing device 18 by drilling rod 17
Sealing material tentatively block the annulus space between casing head 19 and underwater well head 24 under the effect of the pressure.With piston cylinder
3, the components such as valve body 61 continue traveling downwardly, when the vertical deviation of drilling rod 17 reaches predetermined design displacement at platform, inner piston cylinder 4
Overhead-valve core 64 on upper surface, makes communicating valve 6 remain connected state, at this point, operation hydraulic device applies liquid into drilling rod 17
Pressure, high-pressure fluid enter the runner 21 of central tube 2, enter annular space 5 by aperture 22, communicating valve 6, press in annular space 5
Power increases, and piston cylinder 3 is pushed to cut downlink after shear pin 15.As shown in figure 3, the press section 31 at the lower end surface of piston cylinder 3
It moves down and hydraulic coupling is passed into sealing device 18, sealing device 18 is pressed down, and further seals underwater well head 24 and casing head 19
Between annulus space, the fluid of such upper and lower annular space is no longer connected to, and can also apply pressure to annular space outside installation tool
Power improves the airtight quality of cement slurry.Complete sealing after, stop applying to drilling rod 17 it is hydraulic, to drilling rod 17 apply axial tension,
The devices uplinks such as central axis, end cap 1, connecting rod 7, hung drum 8 are driven, elastic shear pin 9 is cut under the action of axial tension, from
And complete freeing for installation tool and sealing device 18.Finally, above mentioning drilling rod 17, installation tool and cementing tool 20 are proposed
Underwater well head 24.
In the application for casing head 19 and sealing device 18 installation tool can by casing head 19 and sealing device 18 from
It send in marine riser to seabed, and casing head 19 is fixed on underwater well by rotating, lifting drilling rod 17 and apply hydraulic mode
Annulus space is insulated in mouth 24 and by sealing device 18.And in entire work progress have installation free step it is few, behaviour
Make that difficulty is small, installation reliability is high and annular space is allowed to wait solidifying the advantages of building the pressure.
Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiments difference.It discloses
All articles and reference, including patent application and publication are hereby incorporated by by quoting for various purposes.Description combination
Term " substantially by ... constitute " should include identified element, ingredient, component or step and essentially without influence should
Other elements, ingredient, component or the step of combined basic novel feature.It is described here using term "comprising" or " comprising "
Element, ingredient, component or step combination it is also contemplated that the implementation being made of substantially these elements, ingredient, component or step
Mode.Here by using term " can with ", it is intended to which the described any attribute for illustrating that " can with " includes all is optional.It is more
A element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Alternatively, single collection
Multiple element, ingredient, component or the step of separation can be divided at element, ingredient, component or step.For describe element,
The open "a" or "an" of ingredient, component or step is not said to exclude other elements, ingredient, component or step.
The foregoing is merely several embodiments of the utility model, although embodiment disclosed by the utility model is such as
On, but the content is only to facilitate the embodiment for understanding the utility model and using, it is practical new to be not intended to limit this
Type.Any those skilled in the art of the present invention are not departing from spirit and scope disclosed by the utility model
Under the premise of, any modification and variation, but the patent of the utility model can be made in the formal and details of embodiment
Protection scope must be still subject to the scope defined in the appended claims.
Claims (10)
1. a kind of installation tool for marine drilling casing head and sealing device, which is characterized in that the installation tool includes:
Central tube with axis, the central tube offer runner along the vertical direction；
End cap, piston cylinder and the inner piston cylinder being set in outside the central tube, the end cap, the piston cylinder, the inner piston
Cylinder and the central, tubular are provided with communicating valve at an annular space in the annular space, the communicating valve controls the stream
The connection and disconnection in road and the annular space have press section, the piston cylinder and the interior work on the piston cylinder side wall
Sliding can be generated between plug tube, so that the press section moves down；
Hung drum between the inner piston cylinder and the piston cylinder is set, offers first through hole on the end cap, it is described
The second through-hole is offered on piston cylinder, is equipped in the first through hole and second through-hole for connecting the hung drum
Connecting rod is provided with the elastic shear pin for being clamped with sealing device on the lateral wall of the hung drum；
Rotating cylinder between the hung drum and the inner piston cylinder is set, be connected to the rotating cylinder lower end be caught in set,
The rotating cylinder and described be caught between set can rotate, and be threadedly coupled between inner piston cylinder and the rotating cylinder, described
Hung drum can drive the rotating cylinder to rotate, and can generate sliding between the hung drum and the rotating cylinder in the axial direction；
The opening lock ring of interior piston cylinder lower end is set, and the opening lock ring is described to be caught in set energy for fastening with casing head
As the rotating cylinder moves up and down and then makes described be caught between set is caught between the opening lock ring and the inner piston cylinder
Gap.
2. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that Gu
Outer cylinder on the end cap is set calmly, is connected between the piston cylinder and the outer cylinder by shear pin.
3. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
It states and offers aperture on the side wall of central tube；The communicating valve includes: valve body, has running through in the axial direction in the valve body
Hole, the intercommunicating pore being connect with through hole；Spool, elastic component in through hole are set, and one end of the elastic component resists described
Spool, the other end of the elastic component resists the central tube so that the spool cuts off the aperture and the annular space,
The lower end surface of the prominent valve body in the lower end of the spool, when the lower end surface stress of the spool moves up the valve body,
The aperture is connected to by intercommunicating pore with the annular space.
4. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
The upper surface for stating piston cylinder is connected with the annular space.
5. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
End cap fixed sleeves are stated equipped with outer cylinder, are provided with shear pin between the outer cylinder and the side wall of piston cylinder.
6. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
Stating has the keyway extended in the axial direction on the inner wall of hung drum, pin block, the pin block insertion are equipped on the rotating cylinder
In the keyway.
7. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
It states rotating cylinder to be connected with described be caught between set by annular interconnecting piece, the lower end for being caught in set offers in the axial direction
The notch of extension, flat key is fixedly installed on the side wall of the inner piston cylinder, and the flat key is embedded in the notch.
8. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
The lateral wall for stating hung drum offers blind hole, and the elasticity shear pin is mounted in the blind hole.
9. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that institute
The lower end for stating central tube is connected with lower contact, has limiting section on the side wall of the lower contact, when it is described be caught in set be caught in it is described
Be open gap between lock ring and the inner piston cylinder when, inner piston cylinder is stated in the limiting section support residence.
10. the installation tool according to claim 1 for marine drilling casing head and sealing device, which is characterized in that
There is lug boss, the lug boss can resist the press section of the piston cylinder on the lateral wall of the hung drum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821587831.3U CN208981995U (en) | 2018-09-27 | 2018-09-27 | Installation tool for marine drilling casing head and sealing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587831.3U CN208981995U (en) | 2018-09-27 | 2018-09-27 | Installation tool for marine drilling casing head and sealing device |
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| CN208981995U true CN208981995U (en) | 2019-06-14 |
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| CN201821587831.3U Active CN208981995U (en) | 2018-09-27 | 2018-09-27 | Installation tool for marine drilling casing head and sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112943132A (en) * | 2021-03-23 | 2021-06-11 | 中国石油大学(华东) | Novel multi-wellhead soil-plug-proof suction anchor and installation method thereof |
| CN113027370A (en) * | 2021-04-13 | 2021-06-25 | 美钻能源科技(上海)有限公司 | Casing hanger and annular seal combined running tool and running method |
| CN114458217A (en) * | 2021-11-16 | 2022-05-10 | 中国海洋石油集团有限公司 | Rapid high-pressure wellhead device and using method thereof |
| CN115324517A (en) * | 2022-07-21 | 2022-11-11 | 西安恩诺维新石油技术有限公司 | High-pressure metal sealing hanger for continuous oil pipe |
| CN116291244A (en) * | 2023-05-25 | 2023-06-23 | 青岛滨海勘察测绘有限公司 | Marine deepwater drilling riser |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112943132A (en) * | 2021-03-23 | 2021-06-11 | 中国石油大学(华东) | Novel multi-wellhead soil-plug-proof suction anchor and installation method thereof |
| CN112943132B (en) * | 2021-03-23 | 2023-06-23 | 中国石油大学(华东) | Method for installing multi-wellhead soil plug suction anchor |
| CN113027370A (en) * | 2021-04-13 | 2021-06-25 | 美钻能源科技(上海)有限公司 | Casing hanger and annular seal combined running tool and running method |
| CN113027370B (en) * | 2021-04-13 | 2022-12-02 | 美钻能源科技(上海)有限公司 | Casing hanger and annular seal combined running tool and running method |
| CN114458217A (en) * | 2021-11-16 | 2022-05-10 | 中国海洋石油集团有限公司 | Rapid high-pressure wellhead device and using method thereof |
| CN114458217B (en) * | 2021-11-16 | 2023-09-01 | 中国海洋石油集团有限公司 | Quick high-pressure wellhead device and application method thereof |
| CN115324517A (en) * | 2022-07-21 | 2022-11-11 | 西安恩诺维新石油技术有限公司 | High-pressure metal sealing hanger for continuous oil pipe |
| CN115324517B (en) * | 2022-07-21 | 2024-03-08 | 西安恩诺维新石油技术有限公司 | High-pressure metal sealing hanger for continuous oil pipe |
| CN116291244A (en) * | 2023-05-25 | 2023-06-23 | 青岛滨海勘察测绘有限公司 | Marine deepwater drilling riser |
| CN116291244B (en) * | 2023-05-25 | 2024-03-22 | 青岛滨海勘察测绘有限公司 | Marine deepwater drilling riser |
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