CN106285546A - The tubing head of blowout prevention and oil and gas wellhead device thereof - Google Patents
The tubing head of blowout prevention and oil and gas wellhead device thereof Download PDFInfo
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- CN106285546A CN106285546A CN201510316793.2A CN201510316793A CN106285546A CN 106285546 A CN106285546 A CN 106285546A CN 201510316793 A CN201510316793 A CN 201510316793A CN 106285546 A CN106285546 A CN 106285546A
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Abstract
The tubing head of a kind of blowout prevention and oil and gas wellhead device thereof, it includes the tubing head oil and gas wellhead device with the tubing head of equipment blowout prevention of blowout prevention；Arranging manual anti-spraying mechanism on the tubing head of blowout prevention, it is mainly made up of boll-weevil hanger, housing, manual flashboard blowout prevention assembly, and it is possible not only to hang tubing string, and seals the annular space between oil pipe and production string, and blowout prevention；The oil and gas wellhead device of the tubing head of equipment blowout prevention need not additionally mounted preventer, it is achieved blowout prevention, so that the height that the height of its oil and gas wellhead device does not increases or oil and gas wellhead device increases is the least, reduces the production cost of its oil and gas wellhead device simultaneously；And it is scientific and reasonable for structure.
Description
Technical field
The present invention relates to a kind of tubing head and oil and gas wellhead device thereof, the tubing head of a kind of blowout prevention and
Oil and gas wellhead device.
Background technology
Oil and gas wellhead device is mounted in well head, for suspension sleeve post, tubing string, and seals each layer sleeve pipe
Between and and oil pipe between annular space, can carry out recovering the oil, gas operation, and the pressure of production wellhead can be controlled
Power and regulation oil, gas well mouth flow are it can also be used to special shaft mouth operations such as acid fracturing, water filling, tests
Equipment, it has the feature such as simple in construction, little, easy to operate, the stable performance of volume.Oil and gas wellhead device
Mainly by casing head, tubing head, four-way, bypass pipe fitting, choke valve, flap type, stop valve, Pressure gauge,
Flange and securing member are constituted.Tubing head is used for hanging tubing string, and seals between oil pipe and production string
Annular space, tubing head is connected with casing head, is made up of boll-weevil hanger and body thereof, but tubing head is not
Can blowout prevention.Typically one pipe nipple having upper and lower Flange joint of tubing head body, and with two annular space sides
Outlet, constitutes a four-way, is the most also oil pipe four-way.The upper flange of tubing head body with lock screw,
It is used for compressing boll-weevil hanger.At present, oil and gas wellhead device does not the most install preventer, because of at oil recovery, gas
When operation generation blowout, well kick have an accident can not safe closing well, there are potential safety hazard, the serious threat people
The safety of lives and properties.Preventer has hydraulic blow out preventer and Manual gate plate blowout preventer；Manual gate plate blowout preventer has
Manual single ram type perventer, Manual double-gate preventer, manual many ram preventers.Manual single disc blowout prevention
Device blowout prevention is mainly made up of housing, manual flashboard blowout prevention assembly.Arrange the most anti-on manual flashboard list preventer
Spraying mechanism.Manual single ram type perventer includes two manual flashboard blowout prevention assemblies, and two manual flashboard is prevented
Spray assembly cooperates, and constitutes the structure of a pair manual flashboard blowout prevention assembly.Manual anti-spraying mechanism be housing with
A pair manual flashboard blowout prevention assembly cooperates and connects the overall manual blowout prevention structure formed.Housing bag
Including body and flange arrangement, body is rectangular structure, and body has the main through hole of a centre, flange arrangement
Including neck flange and ring flange, housing has two flange arrangements, the most upper and lower flange arrangement, two flanges
Structure lays respectively at the upper and lower both sides of body, the intermediate throughholes of two flange arrangement respectively with main through hole phase
Leading to, on the same line, body has two side through hole to the centrage of the centrage of flange arrangement and main through hole
And the outlet of left and right annular space, the main through hole of the body of manual single ram type perventer, two side through hole interconnect mutually
Logical, constitute a four-way, referred to as four-way housing.Side through hole combines in pairs and constitutes a pair side through hole
Structure, a same side through hole to side through hole is positioned at main through hole side, and another side through hole is positioned at main through hole
Opposite side, the centrage of two side through hole on the same line and with the vertical and intersectant centerline of main through hole；Shell
By-pass prot, by-pass prot is had to interlink with main through hole on the ring flange of the upper flange structure of body.Manual flashboard blowout prevention
Assembly include flashboard assembly, bearing, screw mandrel, flashboard axis, connection seat, pressure cap, side door, connecting bolt,
Side door bolt.The front end of flashboard axis is pin thread structure, and plane for plane, is referred to as pushed up in its top, top plane with
The central axis of flashboard axis, the two sides being connected with top plane are plane i.e. side plane, and its two side plane divides
Not vertical with top plane, and be parallel to each other, its two side plane arrives the vertical dimension of the centrage of flashboard axis respectively
Equal, between side plane with flashboard axis main body, fluted structure is connected, groove structure open at both ends, its groove
Structure includes groove bottom and groove side, and its groove bottom is parallel with side plane, and its two grooves side is parallel to each other, and
And vertical with groove bottom, groove side is parallel with the top plane of flashboard axis；The blind hole of connection wire rod is had on flashboard axis,
The blind hole of connection wire rod with the centrage of flashboard axis on the same line, has female thread in the blind hole of connection wire rod.
Screw mandrel includes body and shoulder, and body is circular pin, the shoulder of the outwardly annular of intermediate peripheral wall of body,
Its shoulder separates leading portion and back segment screw mandrel body, and the leading portion of body has male thread.Between side door and housing
Being connected, flashboard axis rear end is within connecting the hollow cavity in the middle of seat, and flashboard axis front end is stretched logical in the side of housing
In hole, the male thread on the leading portion of the body of screw mandrel and the internal thread rotation in the blind hole of the connection wire rod of flashboard axis
Closing and connect, connect seat and be connected with screw mandrel, screw mandrel is connected with pressure cap, makes pressure cap be enclosed within screw mandrel,
Pressure cap is connected with being connected seat, makes the shoulder on screw mandrel be positioned at and connects outside seat and at the central hollow of pressure cap
In chamber, having two bearings in pressure cap central hollow chamber, two bearing is respectively fitted on screw mandrel, and exists respectively
The both sides of the shoulder on screw mandrel, connect the front end of seat in the through hole in the middle of side door.Manual single ram type perventer
On have black box, black box include the sealing ring connected between seat and screw mandrel and are connected between seat and side door
Sealing ring, side door and housing between sealing ring seal between seat and screw mandrel so that connecting, be connected seat
And seal between side door, seal between side door and housing.Side door is positioned at outside the side through hole of housing, and side door covers
It is placed on side through hole, by side door bolt, side door and housing is fixed together, then passes through connecting bolt
Connection seat and side door are linked together.Flashboard assembly includes gate panel body and sealing member, and gate panel body has
Box structure, box structure matches with the pin thread structure of the front end of flashboard axis, and it is convex straight trough, and it is by interior
Groove and water jacket are constituted, i.e. there are convex straight trough, horizontal break-through pedestal in the outside of gate panel body, and its groove bottom is plane,
Convex straight trough includes inside groove and water jacket, and the width of its inside groove is more than the width of water jacket, between two groove sides of water jacket
Vertical dimension and flashboard axis front end pin thread structure top two groove structures two groove bottom between
Vertical dimension is identical, and the width of the groove structure groove bottom of the pin thread structure of the front end of its flashboard axis is with flashboard originally
The width of the groove side of the water jacket of the box structure of body is identical, and the pin thread structure top plane of the front end of flashboard axis is extremely
The vertical dimension of the groove side adjacent with top plane of groove structure and the inside groove of the box structure of gate panel body
The degree of depth is identical, the vertical dimension between two side planes of the pin thread structure of the front end of flashboard axis and gate panel body
Vertical dimension between two groove sides of the inside groove of the convex straight trough of box structure is equal；Gate panel body and sealing member
Cooperate connection.Sealing member includes top glue core, anterior glue core, and top glue core also referred to as pushes up sealing, anterior
Glue core is the most front to be sealed.Housing is a pair side through hole structure, installs flashboard assembly in its side through hole, and flashboard is total
Become to hang over flashboard axis front end.Flashboard assembly is full seal structure or is half seal structure, and the flashboard of full seal structure is total
Become referred to as blind rams assembly；The flashboard assembly of half seal structure, referred to as half envelope flashboard assembly.Work as flashboard
When the anterior glue core of assembly is half envelope front portion glue core, flashboard assembly is half seal structure, and it is half envelope flashboard assembly；
When the anterior glue core of flashboard assembly is the anterior glue core of full envelope, flashboard assembly is full seal structure, and it is for entirely sealing lock
Plate assembly.Installing flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.The public affairs of its flashboard axis
It is interior and the most identical, in the PATENT left side via of its housing that buckle structure injects the box structure on corresponding gate panel body
Flashboard assembly cooperate with the flashboard assembly in the through hole of right side, the most relative, two cooperates
Flashboard assembly constitutes one group of flashboard assembly.When anterior glue core is the anterior glue core of full envelope, by closing or opening
Blind rams assembly, thus realize totally-enclosed well head or open well head；When anterior glue core is half envelope front portion glue core
Time, by closing or open half envelope flashboard assembly, thus realize closing the annular between oil pipe and production string
Space or open the annular space between oil pipe and production string.At present, its oil and gas wellhead device must be installed
Preventer ability blowout prevention, so, in oil recovery, gas operation generation blowout, well kick could safety when having an accident
Closing well, but, preventer is to be installed on oil and gas wellhead device as an individual components, considerably increases
Oil and gas wellhead device height, too increases the production cost of oil and gas wellhead device, and unreasonable structure, no
Science.
Summary of the invention
It is an object of the invention to provide tubing head and the oil and gas wellhead device thereof of a kind of blowout prevention, it includes blowout prevention
The oil and gas wellhead device of the tubing head of tubing head and equipment blowout prevention.Manual anti-spraying machine is set on the tubing head of blowout prevention
Structure, so, the tubing head of its blowout prevention is possible not only to hang tubing string, and seals between oil pipe and production string
Annular space, and blowout prevention；Thus, the tubing head of blowout prevention overcomes tubing head can not the defect of blowout prevention.
The oil and gas wellhead device of the tubing head of equipment blowout prevention need not additionally mounted preventer, it is achieved blowout prevention, so that
The height that the height of its oil and gas wellhead device does not increases or oil and gas wellhead device increases is the least, reduces it simultaneously
The production cost of oil and gas wellhead device；Thus, the oil and gas wellhead device of the tubing head of its equipment blowout prevention overcomes
Oil and gas wellhead device is not when installing preventer, and just not blowout prevention, at oil recovery, gas operation generation blowout, well kick
Can not the defect of safe closing well when having an accident；Certainly, the oil and gas wellhead device of the tubing head of its equipment blowout prevention
Also overcome oil and gas wellhead device due to must install preventer could blowout prevention, so, considerably increase oil gas
Wellhead assembly height, add the defect of the production cost of oil and gas wellhead device.And it is scientific and reasonable for structure.
The object of the present invention is achieved like this: the tubing head of a kind of blowout prevention and oil and gas wellhead device thereof, its bag
Include the tubing head of blowout prevention and the oil and gas wellhead device of the tubing head of equipment blowout prevention；On the tubing head of blowout prevention, hands is set
Dynamic anti-spraying mechanism.The tubing head of blowout prevention is mainly made up of boll-weevil hanger, housing, manual flashboard blowout prevention assembly.
The tubing head of blowout prevention includes two manual flashboard blowout prevention assemblies, two manual flashboard blowout prevention assembly phase interworking
Close, constitute the structure of a pair manual flashboard blowout prevention assembly.Manual anti-spraying mechanism is housing and a pair manual flashboard
Blowout prevention assembly cooperates and connects the overall manual blowout prevention structure formed.The tubing head of blowout prevention also includes
Upper flange.Housing includes body and flange arrangement, and body is rectangular structure, and body has the master of a centre
Through hole, flange arrangement includes neck flange and ring flange, and housing has two flange arrangements, the most upper and lower flange
Structure, two flange arrangements lay respectively at the upper and lower both sides of body, the intermediate throughholes of two flange arrangement
Interlink with main through hole respectively, the centrage of the centrage of flange arrangement and main through hole on the same line, this
Body has two side through hole and the outlet of left and right annular space, the main through hole of the body of the tubing head of blowout prevention, two sides
Through hole and the outlet of left and right annular space are interconnected, and constitute a clematis stem, referred to as clematis stem housing.Side through hole
Combination in pairs constitutes the structure of a pair side through hole, and a same side through hole to side through hole is positioned at main through hole
Side, another side through hole is positioned at main through hole opposite side, and the centrage of two side through hole is the most also
Vertical and intersectant centerline with main through hole；Left annular space side side outlet and right annular space side outlet combine structure in pairs
The structure of annular space side outlet in a pair, left annular space side side outlet is positioned at main through hole side, right annular space side outlet position
In main through hole opposite side, the centrage of left annular space side side outlet and right annular space side outlet on the same line and with
The vertical and intersectant centerline of main through hole；Have by-pass prot on the ring flange of the upper flange structure of housing, by-pass prot with
Main through hole interlinks.Manual flashboard blowout prevention assembly includes flashboard assembly, bearing, screw mandrel, flashboard axis, connection
Seat, pressure cap, side door, connecting bolt, side door bolt.The front end of flashboard axis is pin thread structure, and its top is flat
Face, referred to as pushes up plane, top plane and the central axis of flashboard axis, and the two sides being connected with top plane are
Plane i.e. side plane, its two side plane is vertical with top plane respectively, and is parallel to each other, and its two side plane is respectively
Equal to the vertical dimension of centrage of flashboard axis, between side plane with flashboard axis main body, fluted structure is connected,
Groove structure open at both ends, its groove structure includes groove bottom and groove side, and its groove bottom is parallel with side plane,
Its two grooves side is parallel to each other, and vertical with groove bottom, and groove side is parallel with the top plane of flashboard axis；Lock
Have the blind hole of connection wire rod in board shaft, the blind hole of connection wire rod and the centrage of flashboard axis on the same line,
Female thread is had in the blind hole of connection wire rod.Screw mandrel includes body and shoulder, and body is circular pin, in body
Between the shoulder of the outwardly annular of perisporium, its shoulder separates leading portion and back segment screw mandrel body, before body
Male thread is had on Duan.Being connected between side door and housing, flashboard axis rear end is connecting the hollow cavity in the middle of seat
In, flashboard axis front end is stretched in the side through hole of housing, the male thread on the leading portion of the body of screw mandrel and flashboard axis
Connection wire rod blind hole in female thread screw connection, connect seat and be connected with screw mandrel, screw mandrel and pressure cap
Being connected, make pressure cap be enclosed within screw mandrel, pressure cap is connected with being connected seat, makes the shoulder on screw mandrel be positioned at
Connect outside seat and in the central hollow chamber of pressure cap, pressure cap central hollow chamber has two bearings, two
Bearing is respectively fitted on screw mandrel, and the both sides of the shoulder on screw mandrel respectively, connects the front end of seat in side door
Between through hole in.Black box, black box is had to include connecting between seat and screw mandrel on the tubing head of blowout prevention
The sealing ring between sealing ring, side door and housing between sealing ring and connection seat and side door, so that connecting
Seat seals with between screw mandrel, is connected between seat and side door sealing, seals between side door and housing.Side door is positioned at
Outside the side through hole of housing, side door is covered on side through hole, is connected fixing to side door and housing by side door bolt
It is connected together, then by connecting bolt, connection seat and side door is linked together.Flashboard assembly includes that flashboard is originally
Body and sealing member, gate panel body has box structure, the pin thread structure phase of box structure and the front end of flashboard axis
Coordinating, it is convex straight trough, and it is made up of inside groove and water jacket, i.e. there is convex straight trough in the outside of gate panel body, laterally
Break-through pedestal, its groove bottom is plane, and convex straight trough includes inside groove and water jacket, and the width of its inside groove is more than water jacket
Width, the top of the pin thread structure of the front end of the vertical dimension between two groove sides of water jacket and flashboard axis
Vertical dimension between two groove bottom of two groove structures is identical, the pin thread structure of the front end of its flashboard axis recessed
The width of groove structure grooves bottom surface is identical with the width of the groove side of the water jacket of the box structure of gate panel body, flashboard
The pin thread structure top plane of the front end of axle to groove structure with the vertical dimension of the adjacent groove side of plane, top with
The degree of depth of the inside groove of the box structure of gate panel body is identical, two side planes of the pin thread structure of the front end of flashboard axis
Between vertical dimension and two groove sides of the inside groove of the convex straight trough of the box structure of gate panel body between vertical
Apart from equal；Gate panel body cooperates with sealing member and is connected.Sealing member includes top glue core, anterior glue core,
Top glue core also referred to as pushes up sealing, and anterior glue core is the most front to be sealed.Housing is a pair side through hole structure, and its side leads to
Installing flashboard assembly in hole, flashboard assembly hangs over flashboard axis front end.Flashboard assembly is full seal structure or is half
Seal structure, the flashboard assembly of full seal structure is referred to as blind rams assembly；The flashboard assembly of half seal structure, claims
Be half envelope flashboard assembly.When the anterior glue core of flashboard assembly is half envelope front portion glue core, flashboard assembly is half
Seal structure, it is half envelope flashboard assembly；When the anterior glue core of flashboard assembly is the anterior glue core of full envelope, flashboard
Assembly is full seal structure, and it is blind rams assembly.Installing flashboard assembly in its side through hole, flashboard assembly is hung
In flashboard axis front end.In the pin thread structure of its flashboard axis injects the box structure on corresponding gate panel body and phase
It coincide mutually, the flashboard assembly in the PATENT left side via of its housing and the flashboard assembly in the through hole of right side cooperate,
Relative two-by-two, the flashboard assembly that two cooperates constitutes one group of flashboard assembly.The tubing head of blowout prevention, when
When anterior glue core is full envelope anterior glue core, by closing or opening blind rams assembly, thus realize totally-enclosed
Well head or open well head；The tubing head of blowout prevention, when anterior glue core is half envelope front portion glue core, by closing or
Open half envelope flashboard assembly, thus realize the annular space between closing oil pipe and production string or open oil pipe
And the annular space between production string.Being connected by of the tubing head of blowout prevention and casing head be directly connected to or
The two kinds of frame modes being indirectly connected with；When tubing head and when being connected by being directly connected to of casing head of blowout prevention,
The lower flange structure of the tubing head of blowout prevention directly cooperates with the upper flange of casing head and is connected；Oil when blowout prevention
Tube head and when being connected by being indirectly connected with of casing head, the tubing head of blowout prevention also includes that lower flange and double public affairs are short
Joint, the lower flange structure of the tubing head of blowout prevention cooperates with lower flange and is connected, and double male joint upper end coordinates even
Connecing lower flange, double male joint lower end is directly connected to casing head.Boll-weevil hanger is located on the main latus rectum of housing
On portion's shoulder, sealing surface is made to contact with each other sealing by oil pipe self gravitation；Jackscrew assembly includes lock screw,
In by-pass prot on the ring flange of the upper flange structure that lock screw is fixedly connected on housing, lock screw and oil
Pipe hanger is connected, i.e. lock screw is pressed on the top shoulder of boll-weevil hanger；The oil pipe of blowout prevention
The flange arrangement of head upper end is connected with upper flange, and the upper flange of the tubing head of blowout prevention has side passage, spiral shell of releasing
In the side passage outlet that plug is connected on upper flange.The tubing head of blowout prevention is equipped on oil and gas wellhead device.
Its oil and gas wellhead device includes upper flat plate valve, lower flap type, middle plateform valve, upper left flap type, upper right flat board
Valve, bottom left flap type, bottom right flap type, left choke valve, right choke valve, bottom left crossover flange, infradextroversion
Change flange, upper crossover flange, middle left crossover flange, middle right crossover flange, little four-way, upward pressure table, on
Buffer, upper stop valve top connection, downforce table, lower bumper, lower stop valve, lower contact.Bottom left is put down
Plate valve, bottom right flap type tubing head with blowout prevention respectively is connected, and bottom left flap type correspondence is connected to left ring
On Air Export, bottom right flap type correspondence is connected in the outlet of right annular space, under bottom left flap type outer end correspondence connects
Left crossover flange, bottom right flap type outer end correspondence connects bottom right crossover flange, and bottom right crossover flange correspondence connects
Lower contact, lower contact correspondence connects lower stop valve, and lower stop valve correspondence connects lower bumper, lower bumper pair
Should connect downforce table, upper flange connects the bottom of lower flap type, and the top of lower flap type connects middle plateform valve
Bottom, the top of middle plateform valve connects the bottom outlet of little four-way, and upper right flap type one end connects little four-way
Right outlet, the upper right flap type other end right choke valve of connection, right crossover flange in the connection of right choke valve, upper left
Flap type one end connects the left outlet of little four-way, and the upper left flap type other end connects left choke valve, left choke valve
Left crossover flange in connection, what the bottom of upper flat plate valve connected little four-way ejects mouth, and the top of upper flat plate valve is even
Connecting crossover flange, upper crossover flange connects top connection, and top connection connects upper stop valve, and upper stop valve connects
Upper bumper, upper bumper connects upward pressure table.The tubing head equipment Non-follow control spanner of blowout prevention.Blowout prevention
Tubing head connects installs gasket ring and suspension ring, and gasket ring is connected between upper flange structure and the upper flange of housing.
When needs open and close flashboard assembly, Non-follow control spanner coordinates with leading screw, open and close flashboard assembly.So,
When at oil recovery, gas operation generation blowout or well kick, operator run through Non-follow control spanner to the right
Rotate the tubing head left and right sides screw mandrel i.e. rotating clockwise blowout prevention, promote flashboard axis to drive left and right flashboard assembly
Move to well head center respectively along housing flashboard chamber, it is achieved shut-in well, thus realize blowout prevention；On the contrary, need to beat
Drive a well mouth, and operator manually control spanner to about the tubing head that anticlockwise i.e. rotates counterclockwise blowout prevention
Both sides screw mandrel, promotes flashboard axis to drive left and right flashboard assembly to move outside well head center respectively along housing flashboard chamber,
Realization drives a well.So, the tubing head of its blowout prevention is possible not only to hang tubing string, and seals oil pipe and oil reservoir set
Annular space between pipe, and blowout prevention；And the oil and gas wellhead device equipping the tubing head of blowout prevention need not separately
Outer installation preventer, it is achieved blowout prevention, so that the height of its oil and gas wellhead device does not increases or oil and gas wellhead dress
The height putting increase is the least, thus reaches the purpose of the present invention.
Owing to have employed technique scheme, the tubing head of blowout prevention is possible not only to hang tubing string, and Seal Oil
Annular space between pipe and production string, and blowout prevention；The oil and gas wellhead device of the tubing head of equipment blowout prevention
Need not additionally mounted preventer, it is achieved blowout prevention, so that the height of its oil and gas wellhead device does not increases or oil
The height that gaseous control head increases is the least, reduces the production cost of its oil and gas wellhead device simultaneously；And tie
Structure is scientific and reasonable.
Accompanying drawing explanation
Fig. 1 is the tubing head of the blowout prevention of the embodiment of the tubing head of blowout prevention of the present invention and oil and gas wellhead device thereof
Structural representation.
Fig. 2 is the oil of the equipment blowout prevention of the embodiment of the tubing head of blowout prevention of the present invention and oil and gas wellhead device thereof
The structural representation in the front of the upper layer main body of the oil and gas wellhead device of tube head.
Fig. 3 is the oil pipe of the equipment blowout prevention of the embodiment of the tubing head of blowout prevention of the present invention and oil and gas wellhead device thereof
The structural representation of the side of the upper layer main body of the oil and gas wellhead device of head.
In figure: 1, upper flange 2, anterior glue core 3, top glue core 4, gate panel body 5, flashboard axis 6, pressure
Cap 7, screw mandrel 8, bearing 9, connection seat 10, connecting bolt 11, side door 12, housing 13, the oil of blowout prevention
Tube head 14, manual flashboard blowout prevention assembly 15, suspension ring 16, boll-weevil hanger 17, jackscrew assembly 18, release
Plug screw 19, gasket ring 20, upper flat plate valve 21, lower flap type 22, middle plateform valve 23, upper left flap type 24,
Upper right flap type 25, bottom left flap type 26, bottom right flap type 27, left choke valve 28, right choke valve 29,
Bottom left crossover flange 30, bottom right crossover flange 31, upper crossover flange 32, middle left crossover flange 33, the middle right side
Crossover flange 34, little four-way 35, upward pressure table 36, upper bumper 37, upper stop valve 38, downforce table
39, lower bumper 40, lower stop valve 41, lower contact 42, top connection
Detailed description of the invention
The present invention is made with reference to Fig. 1, Fig. 2, Fig. 3.
The tubing head of a kind of blowout prevention and oil and gas wellhead device thereof, it includes the tubing head of blowout prevention and equips blowout prevention
The oil and gas wellhead device of tubing head, the tubing head of blowout prevention arranges manual anti-spraying mechanism.The tubing head master of blowout prevention
To be made up of boll-weevil hanger 16, housing 12, manual flashboard blowout prevention assembly 14.The tubing head of blowout prevention includes
Having two manual flashboard blowout prevention assemblies, two manual flashboard blowout prevention assembly cooperates, constitute a pair manual
The structure of flashboard blowout prevention assembly.Manual anti-spraying mechanism is housing and a pair manual flashboard blowout prevention assembly cooperates
Connect the overall manual blowout prevention structure formed.The tubing head of blowout prevention also includes upper flange.Housing includes
Body and flange arrangement, body is rectangular structure, and body has the main through hole of a centre, flange arrangement bag
Include neck flange and ring flange, housing has two flange arrangements, the most upper and lower flange arrangement, two flange knots
Structure lays respectively at the upper and lower both sides of body, and the intermediate throughholes of two flange arrangement communicates with main through hole respectively
Even, the centrage of the centrage of flange arrangement and main through hole on the same line, body have two side through hole with
And the outlet of left and right annular space, the main through hole of the body of the tubing head of blowout prevention, two side through hole and left and right ring
Air Export is interconnected, and constitutes a clematis stem, referred to as clematis stem housing.Side through hole combines composition in pairs
The structure of a pair side through hole, a same side through hole to side through hole is positioned at main through hole side, and another side leads to
Hole is positioned at main through hole opposite side, the centrage of two side through hole on the same line and with the centrage of main through hole
Intersect vertically；Left annular space side side outlet and right annular space side outlet combine a pair annular space side outlet of composition in pairs
Structure, left annular space side side outlet is positioned at main through hole side, and right annular space side outlet is positioned at main through hole opposite side,
The centrage of left annular space side side outlet and right annular space side outlet on the same line and hangs down with the centrage of main through hole
Straight crossing；By-pass prot, by-pass prot is had to interlink with main through hole on the ring flange of the upper flange structure of housing.Hands
Dynamic flashboard blowout prevention assembly include flashboard assembly, bearing 8, screw mandrel 7, flashboard axis 5, connect seat 9, pressure cap 6,
Side door 11, side door bolt 10.The front end of flashboard axis is pin thread structure, and its top is plane, referred to as pushes up plane,
Top plane and the central axis of flashboard axis, the two sides being connected with top plane are plane i.e. side plane, and they are two years old
Side plane is vertical with top plane respectively, and is parallel to each other, and its two side plane arrives the centrage of flashboard axis respectively
Vertical dimension is equal, and between side plane with flashboard axis main body, fluted structure is connected, groove structure open at both ends,
Its groove structure includes groove bottom and groove side, and its groove bottom is parallel with side plane, and its two grooves side is the most flat
OK, and vertical with groove bottom, and groove side is parallel with the top plane of flashboard axis；Connection wire rod is had on flashboard axis
Blind hole, the blind hole of connection wire rod and the centrage of flashboard axis on the same line, in the blind hole of connection wire rod
There is female thread.Screw mandrel includes body and shoulder, and body is circular pin, the outwardly circle of intermediate peripheral wall of body
The shoulder of annular, its shoulder separates leading portion and back segment screw mandrel body, and the leading portion of body has male thread.Side
Being connected between door and housing, flashboard axis rear end is within connecting the hollow cavity in the middle of seat, and flashboard axis front end is stretched
In the side through hole of housing, the blind hole of the connection wire rod of the male thread on the leading portion of the body of screw mandrel and flashboard axis
In female thread screw connection, connect seat and be connected with screw mandrel, screw mandrel is connected with pressure cap, pressure cap and
Connect seat to be connected, make the shoulder on screw mandrel be positioned at outside connection seat and in the central hollow chamber of pressure cap,
Having two bearings in pressure cap central hollow chamber, two bearing is respectively fitted on screw mandrel, and respectively on screw mandrel
The both sides of shoulder, connect the front end of seat in the through hole in the middle of side door.Sealing group is had on the tubing head of blowout prevention
Part, black box include connecting the sealing ring between seat and screw mandrel and the sealing ring being connected between seat and side door,
Sealing ring between side door and housing, so that sealing between connection seat and screw mandrel, being connected between seat and side door
Seal, seal between side door and housing.Side door is positioned at outside the side through hole of housing, and side door is covered in side through hole
On, by side door bolt, side door and housing are fixed together, then connect seat by connecting bolt 10
It is fixed together with side door.Flashboard assembly includes gate panel body and sealing member, and gate panel body has box
Structure, box structure matches with the pin thread structure of the front end of flashboard axis, and it is convex straight trough, its by inside groove and
Water jacket is constituted, i.e. there are convex straight trough, horizontal break-through pedestal in the outside of gate panel body, and its groove bottom is plane, convex
Straight trough includes inside groove and water jacket, and the width of its inside groove is more than the width of water jacket, between two groove sides of water jacket
Hanging down between two groove bottom of two groove structures at the top of the pin thread structure of the front end of vertical dimension and flashboard axis
Straight apart from identical, the width of the groove structure groove bottom of the pin thread structure of the front end of its flashboard axis and gate panel body
The width of groove side of water jacket of box structure identical, the pin thread structure top plane of the front end of flashboard axis is to the most recessed
The vertical dimension of the groove side adjacent with top plane of groove structure is deep with the inside groove of the box structure of gate panel body
Spend identical, the vertical dimension between two side planes of the pin thread structure of the front end of flashboard axis and the mother of gate panel body
Vertical dimension between two groove sides of the inside groove of the convex straight trough of buckle structure is equal；Flashboard assembly includes that flashboard is originally
Body 4, sealing member.Gate panel body cooperates with sealing member and is connected.Sealing member includes top glue core 3, front portion
Glue core 2, top glue core also referred to as pushes up sealing, and anterior glue core is the most front to be sealed.Housing is a pair side through hole structure,
Installing flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.The pin thread structure of its flashboard axis is inserted
Entering the box structure on the gate panel body of correspondence interior and the most identical, the flashboard in the PATENT left side via of its housing is total
Become to cooperate with the flashboard assembly in the through hole of right side, the most relative, flashboard assembly that two cooperates
Constitute one group of flashboard assembly.Flashboard assembly is half seal structure, referred to as half envelope flashboard assembly.Flashboard assembly
Anterior glue core is half envelope front portion glue core, and its flashboard assembly is half seal structure, and it is half envelope flashboard assembly；So,
The tubing head of blowout prevention, by closing or open half envelope flashboard assembly, thus realizes closing oil pipe and production string
Between annular space or open the annular space between oil pipe and production string.The tubing head of blowout prevention and sleeve pipe
The frame mode being connected by being directly connected to of head, the lower flange structure of the tubing head of blowout prevention is upper with casing head
Flange directly cooperates connection；Boll-weevil hanger is located on the main latus rectum top shoulder of housing, by oil pipe
Self gravitation makes sealing surface contact with each other sealing；Jackscrew assembly 17 includes lock screw, and lock screw is fixing even
In by-pass prot on the ring flange of the upper flange structure being connected on housing, lock screw coordinates with boll-weevil hanger even
Connect, i.e. lock screw is pressed on the top shoulder of boll-weevil hanger；The flange of tubing head 13 upper end of blowout prevention
Structure is connected with upper flange, and the upper flange of the tubing head of blowout prevention has side passage, and plug screw 18 of releasing is connected to
In side passage outlet on flange 1.The tubing head of blowout prevention is equipped on oil and gas wellhead device.Its Oil/gas Well
Mouth device includes upper flat plate valve, lower flap type, middle plateform valve, upper left flap type, upper right flap type, bottom left
Flap type, bottom right flap type, left choke valve, right choke valve, bottom left crossover flange, bottom right crossover flange,
Upper crossover flange, middle left crossover flange, middle right crossover flange, little four-way, upward pressure table, upper bumper,
Upper stop valve, top connection, downforce table, lower bumper, lower stop valve, lower contact.Bottom left flap type 25,
Bottom right flap type 26 tubing head with blowout prevention respectively is connected, and bottom left flap type correspondence is connected to left annular space and goes out
On mouth, bottom right flap type correspondence is connected in the outlet of right annular space, and bottom left flap type outer end correspondence connects infralevoversion
Changing flange 29, bottom right flap type outer end correspondence connects bottom right crossover flange 30, and bottom right crossover flange correspondence connects
Lower contact 41, lower contact correspondence connects lower stop valve 40, and lower stop valve correspondence connects lower bumper 39, lower slow
Rushing device correspondence and connect downforce table 38, upper flange connects the bottom of lower flap type 21, and the top of lower flap type is even
Connecing the bottom of middle plateform valve 22, the top of middle plateform valve connects the bottom outlet of little four-way 34, upper right flap type
24 one end connect the right outlet of little four-way, and the upper right flap type other end connects right choke valve 28, and right choke valve is even
Connecing middle right crossover flange 33, upper left flap type 23 one end connects the left outlet of little four-way, upper left flap type another
End connects left choke valve 27, left crossover flange 32 in the connection of left choke valve, and the bottom of upper flat plate valve 20 connects
Little four-way eject mouth, the top of upper flat plate valve connects upper crossover flange 31, and upper crossover flange connects top connection
42, top connection connects upper stop valve 37, and upper stop valve connects upper bumper 36, and upper bumper connects upward pressure
Table 35.The tubing head of blowout prevention connects installs gasket ring 19 and suspension ring 15, and equips Non-follow control spanner, gasket ring
It is connected between upper flange structure and the upper flange of housing.
It is described in detail provided by the present invention above.Specific case used herein is to the present invention
Principle and embodiment be set forth, the explanation of above example is only intended to help to understand the present invention's
Method and core concept thereof.It should be pointed out that, for those skilled in the art, do not taking off
On the premise of the principle of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and repair
Decorations also fall in the protection domain of the claims in the present invention.
Claims (4)
1. the tubing head of blowout prevention and an oil and gas wellhead device thereof, it includes tubing head and the equipment blowout prevention of blowout prevention
The oil and gas wellhead device of tubing head；Manual anti-spraying mechanism is set on the tubing head of blowout prevention；The tubing head of blowout prevention
Mainly it is made up of boll-weevil hanger, housing, manual flashboard blowout prevention assembly；The tubing head of blowout prevention also includes method
Blue；Housing includes body and flange arrangement, and body is rectangular structure, and body has the main through hole of a centre,
Flange arrangement includes neck flange and ring flange, and housing has two flange arrangements, the most upper and lower flange arrangement,
Two flange arrangements lay respectively at the upper and lower both sides of body, the intermediate throughholes of two flange arrangement respectively with
Main through hole interlinks, the centrage of the centrage of flange arrangement and main through hole on the same line, body have a left side,
Right annular space exports, and left annular space side side outlet and right annular space side outlet combine a pair annular space side of composition in pairs and go out
The structure of mouth, left annular space side side outlet is positioned at main through hole side, and right annular space side outlet is positioned at main through hole opposite side,
The centrage of left annular space side side outlet and right annular space side outlet on the same line and hangs down with the centrage of main through hole
Straight crossing；By-pass prot, by-pass prot is had to interlink with main through hole on the ring flange of the upper flange structure of housing；Anti-
The tubing head of spray and be connected by being directly connected to or being indirectly connected with two kinds of frame modes of casing head；When anti-
The tubing head of spray and when being connected by being directly connected to of casing head, the lower flange structure of the tubing head of blowout prevention and set
The upper flange of tube head directly cooperates connection；When between being connected by of the tubing head of blowout prevention and casing head in succession
When connecing, the tubing head of blowout prevention also includes lower flange and double male joint, the lower flange structure of the tubing head of blowout prevention
Cooperating with lower flange and be connected, double male joint upper end is connected lower flange, and double male joint lower end directly connects
Female connector tube head；Boll-weevil hanger is located on the main latus rectum top shoulder of housing, makes close by oil pipe self gravitation
Front cover contacts with each other sealing；Jackscrew assembly includes that lock screw, lock screw are fixedly connected on the upper method of housing
In by-pass prot on the ring flange of blue structure, lock screw is connected with boll-weevil hanger, i.e. lock screw
It is pressed on the top shoulder of boll-weevil hanger；The flange arrangement of the tubing head upper end of blowout prevention is connected with upper flange,
The upper flange of the tubing head of blowout prevention has side passage, the side passage outlet that plug screw of releasing is connected on upper flange
On；The tubing head of blowout prevention is equipped on oil and gas wellhead device；Its oil and gas wellhead device include upper flat plate valve, under
Flap type, middle plateform valve, upper left flap type, upper right flap type, bottom left flap type, bottom right flap type, a left side
Choke valve, right choke valve, bottom left crossover flange, bottom right crossover flange, upper crossover flange, middle left transformation approach
Right crossover flange blue, middle, little four-way, upward pressure table, upper bumper, upper stop valve top connection, downforce
Table, lower bumper, lower stop valve, lower contact；Bottom left flap type, bottom right flap type respectively with the oil of blowout prevention
Tube head is connected, and bottom left flap type correspondence is connected in the outlet of left annular space, and bottom right flap type correspondence is connected to
In the outlet of right annular space, bottom left flap type outer end correspondence connects bottom left crossover flange, and bottom right flap type outer end is corresponding
Connecting bottom right crossover flange, bottom right crossover flange correspondence connects lower contact, and lower contact correspondence connects lower stop valve,
Lower stop valve correspondence connects lower bumper, and lower bumper correspondence connects downforce table, and upper flange connects lower flat board
The bottom of valve, the top of lower flap type connects the bottom of middle plateform valve, and the top of middle plateform valve connects little four-way
Bottom outlet, upper right flap type one end connect little four-way right outlet, the upper right flap type other end connect right joint
Stream valve, right crossover flange in the connection of right choke valve, upper left flap type one end connects the left outlet of little four-way, on
The left plate valve other end connects left choke valve, left crossover flange in the connection of left choke valve, the bottom of upper flat plate valve
Connecting the mouth that ejects of little four-way, the top of upper flat plate valve connects upper crossover flange, and the connection of upper crossover flange connects
Head, top connection connects upper stop valve, and upper stop valve connects upper bumper, and upper bumper connects upward pressure table；
It is characterized in that: the tubing head of blowout prevention includes two manual flashboard blowout prevention assemblies, two manual flashboard is prevented
Spray assembly cooperates, and constitutes the structure of a pair manual flashboard blowout prevention assembly；Manual anti-spraying mechanism be housing with
A pair manual flashboard blowout prevention assembly cooperates and connects the overall manual blowout prevention structure formed；Body has
Two side through hole, the main through hole of the body of the tubing head of blowout prevention, two side through hole and the outlet of left and right annular space
It is interconnected, constitutes a clematis stem, referred to as clematis stem housing；Manual flashboard blowout prevention assembly include flashboard assembly,
Bearing, screw mandrel, flashboard axis, connection seat, pressure cap, side door, connecting bolt, side door bolt；Flashboard axis
Front end is pin thread structure, and its top is plane, referred to as pushes up plane, top plane and the central axis of flashboard axis,
The two sides being connected with top plane are plane i.e. side plane, and its two side plane is vertical with top plane respectively, and phase
The most parallel, the vertical dimension of the centrage that its two side plane arrives flashboard axis respectively is equal, side plane and flashboard axis
Between main body, fluted structure is connected, and groove structure open at both ends, its groove structure includes groove bottom and groove side
Face, its groove bottom is parallel with side plane, and its two grooves side is parallel to each other, and vertical with groove bottom, groove side
Face is parallel with the top plane of flashboard axis；The blind hole of connection wire rod is had, the blind hole of connection wire rod and lock on flashboard axis
The centrage of board shaft on the same line, has female thread in the blind hole of connection wire rod；Screw mandrel includes body and platform
Shoulder, body is circular pin, the shoulder of the outwardly annular of intermediate peripheral wall of body, and its shoulder is screw mandrel originally
Body separates leading portion and back segment, and the leading portion of body has male thread；It is connected between side door and housing, flashboard
Shaft rear end is within connecting the hollow cavity in the middle of seat, and flashboard axis front end is stretched in the side through hole of housing, the basis of screw mandrel
Male thread on the leading portion of body screws with the female thread in the blind hole of the connection wire rod of flashboard axis and is connected, and connects seat
Being connected with screw mandrel, screw mandrel is connected with pressure cap, makes pressure cap be enclosed within screw mandrel, and pressure cap is joined with being connected seat
Close and connect, make the shoulder on screw mandrel be positioned at outside connection seat and in the central hollow chamber of pressure cap, in the middle of pressure cap
Have two bearings in hollow cavity, two bearing is respectively fitted on screw mandrel, and the shoulder on screw mandrel respectively
Both sides, connect the front end of seat in the through hole in the middle of side door；There is black box on the tubing head of blowout prevention, seal
Assembly includes connecting the sealing ring between seat and screw mandrel and the sealing ring being connected between seat and side door, side door and shell
Sealing ring between body, so that sealing between connection seat and screw mandrel, being connected between seat and side door sealing, side
Seal between door and housing；Side door is positioned at outside the side through hole of housing, and side door is covered on side through hole, passes through
Side door bolt is fixed together side door and housing, then by connecting bolt connecting seat and side door connection
Together；Flashboard assembly includes gate panel body and sealing member, and gate panel body has box structure, box structure
Matching with the pin thread structure of the front end of flashboard axis, it is convex straight trough, and it is made up of inside groove and water jacket, i.e. lock
There are convex straight trough, horizontal break-through pedestal in the outside of plate body, and its groove bottom is plane, convex straight trough include inside groove and
Water jacket, the width of its inside groove is more than the width of water jacket, the vertical dimension between two groove sides of water jacket and flashboard
Vertical dimension between two groove bottom of two groove structures at the top of the pin thread structure of the front end of axle is identical, its
Outside the width of the groove structure groove bottom of the pin thread structure of the front end of flashboard axis is with the box structure of gate panel body
The width of the groove side of groove is identical, putting down with top of the pin thread structure top plane of the front end of flashboard axis to groove structure
The vertical dimension of the groove side that face is adjacent is identical with the degree of depth of the inside groove of the box structure of gate panel body, flashboard axis
Front end pin thread structure two side planes between the convex straight trough of box structure of vertical dimension and gate panel body
Inside groove two groove sides between vertical dimension equal；Gate panel body cooperates with sealing member and is connected；Close
Sealing includes top glue core, anterior glue core, and top glue core also referred to as pushes up sealing, and anterior glue core is the most front to be sealed；
Housing is a pair side through hole structure, installs flashboard assembly in its side through hole, and flashboard assembly hangs over flashboard axis front end；
When the anterior glue core of flashboard assembly is half envelope front portion glue core, flashboard assembly is half seal structure, and it is half envelope lock
Plate assembly；When the anterior glue core of flashboard assembly is the anterior glue core of full envelope, flashboard assembly is full seal structure, its
For blind rams assembly；Installing flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end；Its lock
It is interior and the most identical that the pin thread structure of board shaft injects the box structure on corresponding gate panel body, a left side for its housing
Flashboard assembly in side through hole cooperates with the flashboard assembly in the through hole of right side, the most relative, two phase
The flashboard assembly coordinated mutually constitutes one group of flashboard assembly.
The tubing head of blowout prevention the most according to claim 1 and oil and gas wellhead device thereof, it is characterised in that:
The tubing head equipment Non-follow control spanner of described blowout prevention.
The tubing head of blowout prevention the most according to claim 1 and oil and gas wellhead device thereof, it is characterised in that:
The side through hole of the tubing head of described blowout prevention combines the structure constituting a pair side through hole in pairs, and same offside leads to
One side through hole in hole is positioned at main through hole side, and another side through hole is positioned at main through hole opposite side, and two sides lead to
The centrage in hole on the same line and with the vertical and intersectant centerline of main through hole.
The tubing head of blowout prevention the most according to claim 1 and oil and gas wellhead device thereof, it is characterised in that:
The flashboard assembly of the tubing head equipment of described blowout prevention is full seal structure or is half seal structure, the lock of full seal structure
Plate assembly is referred to as blind rams assembly, the flashboard assembly of half seal structure, referred to as half envelope flashboard assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316793.2A CN106285546A (en) | 2015-06-07 | 2015-06-07 | The tubing head of blowout prevention and oil and gas wellhead device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316793.2A CN106285546A (en) | 2015-06-07 | 2015-06-07 | The tubing head of blowout prevention and oil and gas wellhead device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106285546A true CN106285546A (en) | 2017-01-04 |
Family
ID=57659472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510316793.2A Pending CN106285546A (en) | 2015-06-07 | 2015-06-07 | The tubing head of blowout prevention and oil and gas wellhead device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285546A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854199A (en) * | 2018-11-15 | 2019-06-07 | 中国石油天然气股份有限公司 | A kind of fracturing control device with pressure |
| CN111305787A (en) * | 2018-12-11 | 2020-06-19 | 中国石油化工股份有限公司 | Well completion method for carbonate reservoir ultra-deep horizontal well |
| CN112838554A (en) * | 2021-01-15 | 2021-05-25 | 西南石油大学 | Electric submersible pump cable operation wellhead device |
-
2015
- 2015-06-07 CN CN201510316793.2A patent/CN106285546A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854199A (en) * | 2018-11-15 | 2019-06-07 | 中国石油天然气股份有限公司 | A kind of fracturing control device with pressure |
| CN111305787A (en) * | 2018-12-11 | 2020-06-19 | 中国石油化工股份有限公司 | Well completion method for carbonate reservoir ultra-deep horizontal well |
| CN112838554A (en) * | 2021-01-15 | 2021-05-25 | 西南石油大学 | Electric submersible pump cable operation wellhead device |
| CN112838554B (en) * | 2021-01-15 | 2022-02-15 | 西南石油大学 | Electric submersible pump cable operation wellhead device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
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| WD01 | Invention patent application deemed withdrawn after publication |