CN204804749U - Prevent oil pipe head that spouts and oil gas wellhead assembly thereof - Google Patents
Prevent oil pipe head that spouts and oil gas wellhead assembly thereof Download PDFInfo
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- CN204804749U CN204804749U CN201520410902.2U CN201520410902U CN204804749U CN 204804749 U CN204804749 U CN 204804749U CN 201520410902 U CN201520410902 U CN 201520410902U CN 204804749 U CN204804749 U CN 204804749U
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Abstract
The utility model provides a prevent oil pipe head that spouts and oil gas wellhead assembly thereof, it is including the oil pipe head preventing spouting and the oil gas wellhead assembly of equipping the oil pipe head preventing spouting, it sets up the manual mechanism that prevents spouting to prevent that the oil pipe who spouts is overhead, and it is mainly prevented spouting the assembly and constituted by oil pipe hanger, casing, manual flashboard, and it not only can hang the oil pipe post to annular space between sealed oil pipe and the production string is prevented spouting moreover, the equipment prevents that the first oil gas wellhead assembly of oil pipe that spouts does not need to install in addition the preventer, realizes preventing spouting to make its oil gas wellhead assembly highly do not increase or that the oil gas wellhead assembly increases is highly very little, reduced the manufacturing cost of its oil gas wellhead assembly simultaneously, and structure scientific and reasonable.
Description
Technical field
The utility model relates to a kind of tubing head and oil and gas wellhead device thereof, the tubing head of particularly a kind of blowout prevention and oil and gas wellhead device thereof.
Background technology
Oil and gas wellhead device is mounted in well head, be used for suspension sleeve post, tubing string, and to seal between each layer sleeve pipe and and oil pipe between annular space, can carry out recovering the oil, gas operation, and the pressure of production wellhead can be controlled and regulate oil, gas well mouth flow, also can be used for the special well head implements such as acid fracturing, water filling, test, it has, and structure be simple, volume is little, the feature such as easy to operate, stable performance.Oil and gas wellhead device is formed primarily of casing head, tubing head, four-way, bypass pipe fitting, choke valve, flap type, stop valve, pressure meter, flange and securing member.Tubing head for hanging tubing string, and seals the annular space between oil pipe and production string, and tubing head is connected with casing head, is made up of boll-weevil hanger and body thereof, but tubing head can not blowout prevention.Tubing head body is a pipe nipple having a upper and lower Flange joint normally, and with two annular space side outlets, forms a four-way, be therefore also oil pipe four-way.The upper flange of tubing head body, with lock screw, is used for compressing boll-weevil hanger.At present, oil and gas wellhead device does not generally install preventer, because of can not safe closing well when oil recovery, gas operation generation blowout, well kick have an accident, there is potential safety hazard, the safety of serious threat people's 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 ram type perventer blowout prevention is formed primarily of housing, manual flashboard blowout prevention assembly.Manual flashboard list preventer arranges manual anti-spraying mechanism.Manual single ram type perventer includes two manual flashboard blowout prevention assemblies, and two manual flashboard blowout prevention assembly cooperatively interacts, and forms the structure of a pair manual flashboard blowout prevention assembly.Manual anti-spraying mechanism is that housing and a pair manual flashboard blowout prevention assembly cooperatively interact the overall manual blowout prevention structure of of being connected to form.Housing comprises body and flange arrangement, body is rectangular structure, body has the main through hole of a centre, flange arrangement comprises neck flange and flange, housing there are two flange arrangements, namely go up, lower flange structure, two flange arrangements lay respectively at the upper of body, lower both sides, the intermediate throughholes of two flange arrangement interlinks with main through hole respectively, the center line of flange arrangement and the center line of main through hole are on the same line, body has two side through hole and a left side, right annular space outlet, the main through hole of the body of manual single ram type perventer, two side through hole are interconnected, form a four-way, be referred to as four-way housing.Side through hole combines the structure of formation a pair side through hole in pairs, 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, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole; The flange of the upper flange structure of housing has by-pass prot, and by-pass prot and main through hole interlink.Manual flashboard blowout prevention assembly comprises flashboard assembly, bearing, screw mandrel, flashboard axis, Connection Block, pressure cap, side door, connecting bolt, side door bolt.The front end of flashboard axis is pin thread structure, its top is plane, be referred to as to push up plane, the central axis of top plane and flashboard axis, the two sides be connected with top plane are plane and side plane, its two side plane respectively with top plane orthogonal, and be parallel to each other, the vertical distance that its two side plane arrives the center line of flashboard axis is respectively equal, between side plane with flashboard axis main body, fluted structure is connected, groove structure open at both ends, its groove structure comprises groove bottom and groove side, its groove bottom is parallel with side plane, its two grooves side is parallel to each other, and it is vertical with groove bottom, the top plane parallel of groove side and flashboard axis, flashboard axis has the blind hole of connection wire rod, the blind hole of connection wire rod and the center line of flashboard axis on the same line, have internal thread in the blind hole of connection wire rod.Screw mandrel comprises body and shoulder, and body is circular pin, and 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.Be connected between side door and housing, flashboard axis rear end is in the hollow cavity in the middle of Connection Block, flashboard axis front end is stretched in the side through hole of housing, male thread on the leading portion of the body of screw mandrel screws with the internal thread in the blind hole of the connection wire rod of flashboard axis and is connected, Connection Block and screw mandrel are connected, screw mandrel and pressure cap are connected, pressure cap is made to be enclosed within screw mandrel, pressure cap and Connection Block are connected, shoulder on screw mandrel is arranged in outside Connection Block and in the central hollow chamber of pressure cap, two bearings are had in pressure cap central hollow chamber, two bearing is enclosed within screw mandrel respectively, and the both sides of shoulder respectively on screw mandrel, the front end of Connection Block is in the through hole in the middle of side door.Manual single ram type perventer there is black box, black box comprises the sealing ring between Connection Block and screw mandrel and the sealing ring between Connection Block and side door, sealing ring between side door and housing, thus makes to seal between Connection Block and screw mandrel, seals between Connection Block and side door, seals between side door and housing.Side door is positioned at outside the side through hole of housing, and side door is covered on side through hole, by side door bolt, side door and housing is fixed together, then by connecting bolt, Connection Block and side door is linked together.Flashboard assembly comprises gate panel body and seal, gate panel body there is box structure, box structure matches with the pin thread structure of the front end of flashboard axis, it is convex straight trough, it is made up of inside groove and water jacket, namely there is convex straight trough in the outside of gate panel body, horizontal break-through pedestal, its groove bottom is plane, convex straight trough comprises inside groove and water jacket, the width of its inside groove is greater than the width of water jacket, vertical distance between two groove sides of water jacket is identical with the vertical distance between two groove bottom of two groove structures at the top of the pin thread structure of the front end of flashboard axis, the width of the groove structure groove bottom of the pin thread structure of the front end of its flashboard axis is identical with the width of the groove side of the water jacket of the box structure of gate panel body, the pin thread structure top plane of the front end of flashboard axis is identical to the degree of depth of the inside groove of the vertical distance of groove side adjacent with top plane of groove structure and the box structure of gate panel body, vertical distance between two side planes of the pin thread structure of the front end of flashboard axis is equal with the vertical distance between two groove sides of the inside groove of the convex straight trough of the box structure of gate panel body, gate panel body cooperatively interacts with seal and is connected.Seal comprises top glue core, anterior glue core, and top glue core also claims top sealing, and anterior glue core also claims front sealing.Housing is a pair side through hole structure, and install flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.Flashboard assembly is full seal structure or is half seal structure, and the flashboard assembly of full seal structure is referred to as blind rams assembly; The flashboard assembly of half seal structure, is referred to as 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, 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 blind rams assembly.Install flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.The pin thread structure of its flashboard axis to inject in the box structure on corresponding gate panel body and mutually coincide, flashboard assembly in the PATENT left side via of its housing cooperatively interacts with the flashboard assembly in the through hole of right side, relative between two, the flashboard assembly that two cooperatively interacts forms one group of flashboard assembly.When anterior glue core is the anterior glue core of full envelope, by closing or open blind rams assembly, thus realizes totally-enclosed well head or open well head; When anterior glue core is half envelope front portion glue core, by closing or open half envelope flashboard assembly, thus realize the annular space closed between oil pipe and production string or the annular space opened between oil pipe and production string.At present, oil and gas wellhead device must install the blowout prevention of preventer ability, like this, could safe closing well when oil recovery, gas operation generation blowout, well kick have an accident, but preventer is installed on oil and gas wellhead device as an individual components, considerably increases oil and gas wellhead device height, too increase the cost of production of oil and gas wellhead device, and structure not science.
Utility model content
The purpose of this utility model is to provide a kind of tubing head and oil and gas wellhead device thereof of blowout prevention, and it comprises the oil and gas wellhead device of the tubing head of blowout prevention and the tubing head of equipment blowout prevention.The tubing head of blowout prevention is arranged manual anti-spraying mechanism, like this, the tubing head of its blowout prevention not only can hang tubing string, and seals the annular space between oil pipe and production string, 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 tubing head of equipment blowout prevention does not need to install preventer in addition, realizes blowout prevention, thus the height of its oil and gas wellhead device is not increased or height that oil and gas wellhead device increases very little, reduce the cost of production of its oil and gas wellhead device simultaneously; Thus, oil and gas wellhead device of tubing head of its equipment blowout prevention overcomes oil and gas wellhead device when not installing preventer, just not blowout prevention, can not the defect of safe closing well when oil recovery, gas operation generation blowout, well kick have an accident; Certainly, the oil and gas wellhead device of the tubing head of its equipment blowout prevention also overcomes oil and gas wellhead device owing to must install the blowout prevention of preventer ability, like this, considerably increases oil and gas wellhead device height, adds the defect of the cost of production of oil and gas wellhead device.And it is scientific and reasonable for structure.
The purpose of this utility model is achieved in that a kind of tubing head and oil and gas wellhead device thereof of blowout prevention, and it comprises the oil and gas wellhead device of the tubing head of blowout prevention and the tubing head of equipment blowout prevention; The tubing head of blowout prevention is arranged manual anti-spraying mechanism.The tubing head of blowout prevention is formed primarily of boll-weevil hanger, housing, manual flashboard blowout prevention assembly.The tubing head of blowout prevention includes two manual flashboard blowout prevention assemblies, and two manual flashboard blowout prevention assembly cooperatively interacts, and forms the structure of a pair manual flashboard blowout prevention assembly.Manual anti-spraying mechanism is that housing and a pair manual flashboard blowout prevention assembly cooperatively interact the overall manual blowout prevention structure of of being connected to form.The tubing head of blowout prevention also comprises upper flange.Housing comprises body and flange arrangement, body is rectangular structure, body has the main through hole of a centre, flange arrangement comprises neck flange and flange, housing there are two flange arrangements, namely go up, lower flange structure, two flange arrangements lay respectively at the upper of body, lower both sides, the intermediate throughholes of two flange arrangement interlinks with main through hole respectively, the center line of flange arrangement and the center line of main through hole are on the same line, body has two side through hole and a left side, right annular space outlet, the main through hole of the body of the tubing head of blowout prevention, two side through hole and a left side, right annular space outlet is interconnected, form one six to lead to, be referred to as six logical housings.Side through hole combines the structure of formation a pair side through hole in pairs, 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, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole; Left annular space side side outlet and right annular space side outlet combine the structure of formation a pair annular space side outlet in pairs, left annular space side side outlet is positioned at main through hole side, right annular space side outlet is positioned at main through hole opposite side, the center line 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; The flange of the upper flange structure of housing has by-pass prot, and by-pass prot and main through hole interlink.Manual flashboard blowout prevention assembly comprises flashboard assembly, bearing, screw mandrel, flashboard axis, Connection Block, pressure cap, side door, connecting bolt, side door bolt.The front end of flashboard axis is pin thread structure, its top is plane, be referred to as to push up plane, the central axis of top plane and flashboard axis, the two sides be connected with top plane are plane and side plane, its two side plane respectively with top plane orthogonal, and be parallel to each other, the vertical distance that its two side plane arrives the center line of flashboard axis is respectively equal, between side plane with flashboard axis main body, fluted structure is connected, groove structure open at both ends, its groove structure comprises groove bottom and groove side, its groove bottom is parallel with side plane, its two grooves side is parallel to each other, and it is vertical with groove bottom, the top plane parallel of groove side and flashboard axis, flashboard axis has the blind hole of connection wire rod, the blind hole of connection wire rod and the center line of flashboard axis on the same line, have internal thread in the blind hole of connection wire rod.Screw mandrel comprises body and shoulder, and body is circular pin, and 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.Be connected between side door and housing, flashboard axis rear end is in the hollow cavity in the middle of Connection Block, flashboard axis front end is stretched in the side through hole of housing, male thread on the leading portion of the body of screw mandrel screws with the internal thread in the blind hole of the connection wire rod of flashboard axis and is connected, Connection Block and screw mandrel are connected, screw mandrel and pressure cap are connected, pressure cap is made to be enclosed within screw mandrel, pressure cap and Connection Block are connected, shoulder on screw mandrel is arranged in outside Connection Block and in the central hollow chamber of pressure cap, two bearings are had in pressure cap central hollow chamber, two bearing is enclosed within screw mandrel respectively, and the both sides of shoulder respectively on screw mandrel, the front end of Connection Block is in the through hole in the middle of side door.The tubing head of blowout prevention there is black box, black box comprises the sealing ring between Connection Block and screw mandrel and the sealing ring between Connection Block and side door, sealing ring between side door and housing, thus makes to seal between Connection Block and screw mandrel, seals between Connection Block and side door, seals between side door and housing.Side door is positioned at outside the side through hole of housing, and side door is covered on side through hole, by side door bolt, side door and housing is fixed together, then by connecting bolt, Connection Block and side door is linked together.Flashboard assembly comprises gate panel body and seal, gate panel body there is box structure, box structure matches with the pin thread structure of the front end of flashboard axis, it is convex straight trough, it is made up of inside groove and water jacket, namely there is convex straight trough in the outside of gate panel body, horizontal break-through pedestal, its groove bottom is plane, convex straight trough comprises inside groove and water jacket, the width of its inside groove is greater than the width of water jacket, vertical distance between two groove sides of water jacket is identical with the vertical distance between two groove bottom of two groove structures at the top of the pin thread structure of the front end of flashboard axis, the width of the groove structure groove bottom of the pin thread structure of the front end of its flashboard axis is identical with the width of the groove side of the water jacket of the box structure of gate panel body, the pin thread structure top plane of the front end of flashboard axis is identical to the degree of depth of the inside groove of the vertical distance of groove side adjacent with top plane of groove structure and the box structure of gate panel body, vertical distance between two side planes of the pin thread structure of the front end of flashboard axis is equal with the vertical distance between two groove sides of the inside groove of the convex straight trough of the box structure of gate panel body, gate panel body cooperatively interacts with seal and is connected.Seal comprises top glue core, anterior glue core, and top glue core also claims top sealing, and anterior glue core also claims front sealing.Housing is a pair side through hole structure, and install flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.Flashboard assembly is full seal structure or is half seal structure, and the flashboard assembly of full seal structure is referred to as blind rams assembly; The flashboard assembly of half seal structure, is referred to as 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, 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 blind rams assembly.Install flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.The pin thread structure of its flashboard axis to inject in the box structure on corresponding gate panel body and mutually coincide, flashboard assembly in the PATENT left side via of its housing cooperatively interacts with the flashboard assembly in the through hole of right side, relative between two, the flashboard assembly that two cooperatively interacts forms one group of flashboard assembly.The tubing head of blowout prevention, when anterior glue core is the anterior glue core of full envelope, by closing or open blind rams assembly, thus realizes totally-enclosed well head or opens 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 realizes the annular space closed between oil pipe and production string or the annular space opened between oil pipe and production string.The tubing head of blowout prevention and the connection of casing head adopt the two kinds of frame modes directly connecting or indirectly connect; When the tubing head of blowout prevention and the connection of casing head adopt directly connect time, the lower flange structure of the tubing head of blowout prevention directly cooperatively interacts with the upper flange of casing head and is connected; When the tubing head of blowout prevention and the connection of casing head adopt indirectly connect time, the tubing head of blowout prevention also comprises lower flange and double male joint, the lower flange structure of the tubing head of blowout prevention cooperatively interacts with lower flange and is connected, double male joint upper end is connected lower flange, the direct adapter sleeve tube head in double male joint lower end.Boll-weevil hanger is located on the main latus rectum top shoulder of housing, by oil pipe self gravitation, sealing surface is contacted with each other sealing; Jackscrew assembly comprises lock screw, and lock screw is fixedly connected on the by-pass prot Inner on the flange of the upper flange structure of housing, and lock screw and boll-weevil hanger are connected, and namely lock screw 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, and the upper flange of the tubing head of blowout prevention has side air vent, and plug screw of releasing is connected in the side air vent outlet on upper flange.The tubing head of blowout prevention is equipped on oil and gas wellhead device.Its oil and gas wellhead device comprises 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, upper pressure meter, upper bumper, upper stop valve top connection, downforce table, lower bumper, lower stop valve, lower contact.Bottom left flap type, bottom right flap type is connected with the tubing head of blowout prevention respectively, bottom left flap type correspondence is connected in the outlet of left annular space, bottom right flap type correspondence is connected in the outlet of right annular space, bottom left flap type outer end correspondence connects bottom left crossover flange, bottom right flap type outer end correspondence connects bottom right crossover flange, bottom right crossover flange correspondence connects lower contact, lower contact correspondence connects lower stop valve, lower stop valve correspondence connects lower bumper, lower bumper correspondence connects downforce table, upper flange connects the bottom of lower flap type, the top of lower flap type connects the bottom of middle plateform valve, the top of middle plateform valve connects the bottom outlet of little four-way, upper right flap type one end connects the right outlet of little four-way, the upper right flap type other end connects right choke valve, right crossover flange during right choke valve connects, upper left flap type one end connects the left outlet of little four-way, the upper left flap type other end connects left choke valve, left crossover flange during left choke valve connects, what the bottom of upper flat plate valve connected little four-way ejects mouth, the top of upper flat plate valve connects upper crossover flange, upper crossover flange connects top connection, top connection connects upper stop valve, upper stop valve connects upper bumper, upper bumper connects upper pressure meter.The tubing head equipment Non-follow control spanner of blowout prevention.The tubing head connection gasket ring of blowout prevention and suspension ring, gasket ring is connected between the upper flange structure and upper flange of housing.When needs open and close flashboard assembly, Non-follow control spanner coordinates with leading screw, open and close flashboard assembly.Like this, when recover the oil, gas operation generation blowout or well kick time, operating personnel manually control namely spanner rotates clockwise tubing head left and right sides screw mandrel from blowout prevention to right rotation rapidly, promoting flashboard axis drives left and right flashboard assembly to move along housing flashboard chamber respectively to well head center, realize shut-in well, thus realize blowout prevention; On the contrary, need to open well head, operating personnel manually control namely spanner rotates counterclockwise tubing head left and right sides screw mandrel from blowout prevention to anticlockwise, and promotion flashboard axis drive left and right flashboard assembly, realizes driving a well along housing flashboard chamber respectively to movement outside well head center.Like this, the tubing head of its blowout prevention not only can hang tubing string, and seals the annular space between oil pipe and production string, and blowout prevention; And the oil and gas wellhead device equipping the tubing head of blowout prevention does not need to install preventer in addition, realize blowout prevention, thus the height of its oil and gas wellhead device is not increased or height that oil and gas wellhead device increases very little, thus reach the purpose of this utility model.
Owing to have employed technique scheme, the tubing head of blowout prevention not only can hang tubing string, and seals the annular space between oil pipe and production string, and blowout prevention; The oil and gas wellhead device of tubing head of equipment blowout prevention does not need to install preventer in addition, realizes blowout prevention, thus the height of its oil and gas wellhead device is not increased or height that oil and gas wellhead device increases very little, reduce the cost of production of its oil and gas wellhead device simultaneously; And it is scientific and reasonable for structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tubing head of the blowout prevention of the tubing head of the utility model blowout prevention and the embodiment of oil and gas wellhead device thereof.
Fig. 2 is the structural representation in the front of the upper layer main body of the oil and gas wellhead device of the tubing head of the equipment blowout prevention of the tubing head of the utility model blowout prevention and the embodiment of oil and gas wellhead device thereof.
Fig. 3 is the structural representation of the side of the upper layer main body of the oil and gas wellhead device of the tubing head of the equipment blowout prevention of the tubing head of the utility model blowout prevention and the embodiment of oil and gas wellhead device thereof.
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 Block 10, connecting bolt 11, side door 12, housing 13, the tubing head 14 of blowout prevention, manual flashboard blowout prevention assembly 15, suspension ring 16, boll-weevil hanger 17, jackscrew assembly 18, to 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, middle right crossover flange 34, little four-way 35, upper pressure meter 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 utility model is made with reference to Fig. 1, Fig. 2, Fig. 3.
The tubing head of blowout prevention and an oil and gas wellhead device thereof, it comprises the oil and gas wellhead device of the tubing head of blowout prevention and the tubing head of equipment blowout prevention, the tubing head of blowout prevention is arranged manual anti-spraying mechanism.The tubing head of blowout prevention is formed primarily of boll-weevil hanger 16, housing 12, manual flashboard blowout prevention assembly 14.The tubing head of blowout prevention includes two manual flashboard blowout prevention assemblies, and two manual flashboard blowout prevention assembly cooperatively interacts, and forms the structure of a pair manual flashboard blowout prevention assembly.Manual anti-spraying mechanism is that housing and a pair manual flashboard blowout prevention assembly cooperatively interact the overall manual blowout prevention structure of of being connected to form.The tubing head of blowout prevention also comprises upper flange.Housing comprises body and flange arrangement, body is rectangular structure, body has the main through hole of a centre, flange arrangement comprises neck flange and flange, housing there are two flange arrangements, namely go up, lower flange structure, two flange arrangements lay respectively at the upper of body, lower both sides, the intermediate throughholes of two flange arrangement interlinks with main through hole respectively, the center line of flange arrangement and the center line of main through hole are on the same line, body has two side through hole and a left side, right annular space outlet, the main through hole of the body of the tubing head of blowout prevention, two side through hole and a left side, right annular space outlet is interconnected, form one six to lead to, be referred to as six logical housings.Side through hole combines the structure of formation a pair side through hole in pairs, 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, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole; Left annular space side side outlet and right annular space side outlet combine the structure of formation a pair annular space side outlet in pairs, left annular space side side outlet is positioned at main through hole side, right annular space side outlet is positioned at main through hole opposite side, the center line 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; The flange of the upper flange structure of housing has by-pass prot, and by-pass prot and main through hole interlink.Manual flashboard blowout prevention assembly comprises flashboard assembly, bearing 8, screw mandrel 7, flashboard axis 5, Connection Block 9, pressure cap 6, side door 11, side door bolt 10.The front end of flashboard axis is pin thread structure, its top is plane, be referred to as to push up plane, the central axis of top plane and flashboard axis, the two sides be connected with top plane are plane and side plane, its two side plane respectively with top plane orthogonal, and be parallel to each other, the vertical distance that its two side plane arrives the center line of flashboard axis is respectively equal, between side plane with flashboard axis main body, fluted structure is connected, groove structure open at both ends, its groove structure comprises groove bottom and groove side, its groove bottom is parallel with side plane, its two grooves side is parallel to each other, and it is vertical with groove bottom, the top plane parallel of groove side and flashboard axis, flashboard axis has the blind hole of connection wire rod, the blind hole of connection wire rod and the center line of flashboard axis on the same line, have internal thread in the blind hole of connection wire rod.Screw mandrel comprises body and shoulder, and body is circular pin, and 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.Be connected between side door and housing, flashboard axis rear end is in the hollow cavity in the middle of Connection Block, flashboard axis front end is stretched in the side through hole of housing, male thread on the leading portion of the body of screw mandrel screws with the internal thread in the blind hole of the connection wire rod of flashboard axis and is connected, Connection Block and screw mandrel are connected, screw mandrel and pressure cap are connected, pressure cap and Connection Block are connected, shoulder on screw mandrel is arranged in outside Connection Block and in the central hollow chamber of pressure cap, two bearings are had in pressure cap central hollow chamber, two bearing is enclosed within screw mandrel respectively, and the both sides of shoulder respectively on screw mandrel, the front end of Connection Block is in the through hole in the middle of side door.The tubing head of blowout prevention there is black box, black box comprises the sealing ring between Connection Block and screw mandrel and the sealing ring between Connection Block and side door, sealing ring between side door and housing, thus makes to seal between Connection Block and screw mandrel, seals between Connection Block and side door, seals between side door and housing.Side door is positioned at outside the side through hole of housing, and side door is covered on side through hole, by side door bolt, side door and housing is fixed together, then by connecting bolt 10, Connection Block and side door is fixed together.Flashboard assembly comprises gate panel body and seal, gate panel body there is box structure, box structure matches with the pin thread structure of the front end of flashboard axis, it is convex straight trough, it is made up of inside groove and water jacket, namely there is convex straight trough in the outside of gate panel body, horizontal break-through pedestal, its groove bottom is plane, convex straight trough comprises inside groove and water jacket, the width of its inside groove is greater than the width of water jacket, vertical distance between two groove sides of water jacket is identical with the vertical distance between two groove bottom of two groove structures at the top of the pin thread structure of the front end of flashboard axis, the width of the groove structure groove bottom of the pin thread structure of the front end of its flashboard axis is identical with the width of the groove side of the water jacket of the box structure of gate panel body, the pin thread structure top plane of the front end of flashboard axis is identical to the degree of depth of the inside groove of the vertical distance of groove side adjacent with top plane of groove structure and the box structure of gate panel body, vertical distance between two side planes of the pin thread structure of the front end of flashboard axis is equal with the vertical distance between two groove sides of the inside groove of the convex straight trough of the box structure of gate panel body, flashboard assembly comprises gate panel body 4, seal.Gate panel body cooperatively interacts with seal and is connected.Seal comprises top glue core 3, anterior glue core 2, and top glue core also claims top sealing, and anterior glue core also claims front sealing.Housing is a pair side through hole structure, and install flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end.The pin thread structure of its flashboard axis to inject in the box structure on corresponding gate panel body and mutually coincide, flashboard assembly in the PATENT left side via of its housing cooperatively interacts with the flashboard assembly in the through hole of right side, relative between two, the flashboard assembly that two cooperatively interacts forms one group of flashboard assembly.Flashboard assembly is half seal structure, is referred to as half envelope flashboard assembly.The anterior glue core of flashboard assembly is the anterior glue core of half envelope, and its flashboard assembly is half seal structure, and it is half envelope flashboard assembly; Like this, the tubing head of blowout prevention, by closing or open half envelope flashboard assembly, thus realizes the annular space closed between oil pipe and production string or the annular space opened between oil pipe and production string.The tubing head of blowout prevention and the connection of casing head adopt the frame mode directly connected, and the lower flange structure of the tubing head of blowout prevention directly cooperatively interacts with the upper flange of casing head and is connected; Boll-weevil hanger is located on the main latus rectum top shoulder of housing, by oil pipe self gravitation, sealing surface is contacted with each other sealing; Jackscrew assembly 17 comprises lock screw, and lock screw is fixedly connected on the by-pass prot Inner on the flange of the upper flange structure of housing, and lock screw and boll-weevil hanger are connected, and namely lock screw is pressed on the top shoulder of boll-weevil hanger; The flange arrangement of tubing head 13 upper end of blowout prevention is connected with upper flange, and the upper flange of the tubing head of blowout prevention has side air vent, and plug screw 18 of releasing is connected in the side air vent outlet on upper flange 1.The tubing head of blowout prevention is equipped on oil and gas wellhead device.Its oil and gas wellhead device comprises 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, upper pressure meter, 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 is connected with the tubing head of blowout prevention respectively, bottom left flap type correspondence is connected in the outlet of left annular space, bottom right flap type correspondence is connected in the outlet of right annular space, bottom left flap type outer end correspondence connects bottom left crossover flange 29, bottom right flap type outer end correspondence connects bottom right crossover flange 30, bottom right crossover flange correspondence connects lower contact 41, lower contact correspondence connects lower stop valve 40, lower stop valve correspondence connects lower bumper 39, lower bumper correspondence connects downforce table 38, upper flange connects the bottom of lower flap type 21, the top of lower flap type connects 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 connects the right outlet of little four-way, the upper right flap type other end connects right choke valve 28, right crossover flange 33 during right choke valve connects, upper left flap type 23 one end connects the left outlet of little four-way, the upper left flap type other end connects left choke valve 27, left crossover flange 32 during left choke valve connects, what the bottom of upper flat plate valve 20 connected little four-way ejects mouth, the top of upper flat plate valve connects upper crossover flange 31, upper crossover flange connects top connection 42, top connection connects upper stop valve 37, upper stop valve connects upper bumper 36, upper bumper connects upper pressure meter 35.The tubing head connection gasket ring 19 of blowout prevention and suspension ring 15, and equip Non-follow control spanner, gasket ring is connected between the upper flange structure and upper flange of housing.
Be described in detail provided by the utility model above.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (4)
1. the tubing head of blowout prevention and an oil and gas wellhead device thereof, it comprises the oil and gas wellhead device of the tubing head of blowout prevention and the tubing head of equipment blowout prevention, the tubing head of blowout prevention is arranged manual anti-spraying mechanism, the tubing head of blowout prevention is formed primarily of boll-weevil hanger, housing, manual flashboard blowout prevention assembly, the tubing head of blowout prevention also comprises upper flange, housing comprises body and flange arrangement, body is rectangular structure, body has the main through hole of a centre, flange arrangement comprises neck flange and flange, housing there are two flange arrangements, namely go up, lower flange structure, two flange arrangements lay respectively at the upper of body, lower both sides, the intermediate throughholes of two flange arrangement interlinks with main through hole respectively, the center line of flange arrangement and the center line of main through hole are on the same line, body has a left side, right annular space outlet, left annular space side side outlet and right annular space side outlet combine the structure of formation a pair annular space side outlet in pairs, left annular space side side outlet is positioned at main through hole side, right annular space side outlet is positioned at main through hole opposite side, the center line 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, the flange of the upper flange structure of housing has by-pass prot, and by-pass prot and main through hole interlink, the tubing head of blowout prevention and the connection of casing head adopt the two kinds of frame modes directly connecting or indirectly connect, when the tubing head of blowout prevention and the connection of casing head adopt directly connect time, the lower flange structure of the tubing head of blowout prevention directly cooperatively interacts with the upper flange of casing head and is connected, when the tubing head of blowout prevention and the connection of casing head adopt indirectly connect time, the tubing head of blowout prevention also comprises lower flange and double male joint, the lower flange structure of the tubing head of blowout prevention cooperatively interacts with lower flange and is connected, double male joint upper end is connected lower flange, the direct adapter sleeve tube head in double male joint lower end, boll-weevil hanger is located on the main latus rectum top shoulder of housing, by oil pipe self gravitation, sealing surface is contacted with each other sealing, jackscrew assembly comprises lock screw, and lock screw is fixedly connected in the by-pass prot on the flange of the upper flange structure of housing, and lock screw and boll-weevil hanger are connected, and namely lock screw 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, and the upper flange of the tubing head of blowout prevention has side air vent, and plug screw of releasing is connected in the side air vent outlet on upper flange, the tubing head of blowout prevention is equipped on oil and gas wellhead device, its oil and gas wellhead device comprises 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, upper pressure meter, upper bumper, upper stop valve top connection, downforce table, lower bumper, lower stop valve, lower contact, bottom left flap type, bottom right flap type is connected with the tubing head of blowout prevention respectively, bottom left flap type correspondence is connected in the outlet of left annular space, bottom right flap type correspondence is connected in the outlet of right annular space, bottom left flap type outer end correspondence connects bottom left crossover flange, bottom right flap type outer end correspondence connects bottom right crossover flange, bottom right crossover flange correspondence connects lower contact, lower contact correspondence connects lower stop valve, lower stop valve correspondence connects lower bumper, lower bumper correspondence connects downforce table, upper flange connects the bottom of lower flap type, the top of lower flap type connects the bottom of middle plateform valve, the top of middle plateform valve connects the bottom outlet of little four-way, upper right flap type one end connects the right outlet of little four-way, the upper right flap type other end connects right choke valve, right crossover flange during right choke valve connects, upper left flap type one end connects the left outlet of little four-way, the upper left flap type other end connects left choke valve, left crossover flange during left choke valve connects, what the bottom of upper flat plate valve connected little four-way ejects mouth, the top of upper flat plate valve connects upper crossover flange, upper crossover flange connects top connection, top connection connects upper stop valve, upper stop valve connects upper bumper, upper bumper connects upper pressure meter, it is characterized in that: the tubing head of blowout prevention includes two manual flashboard blowout prevention assemblies, and two manual flashboard blowout prevention assembly cooperatively interacts, and forms the structure of a pair manual flashboard blowout prevention assembly, manual anti-spraying mechanism is that housing and a pair manual flashboard blowout prevention assembly cooperatively interact the overall manual blowout prevention structure of of being connected to form, body has two side through hole, and the outlet of the main through hole of the body of the tubing head of blowout prevention, two side through hole and left and right annular space is interconnected, and forms one six and leads to, and is referred to as six logical housings, manual flashboard blowout prevention assembly comprises flashboard assembly, bearing, screw mandrel, flashboard axis, Connection Block, pressure cap, side door, connecting bolt, side door bolt, the front end of flashboard axis is pin thread structure, its top is plane, be referred to as to push up plane, the central axis of top plane and flashboard axis, the two sides be connected with top plane are plane and side plane, its two side plane respectively with top plane orthogonal, and be parallel to each other, the vertical distance that its two side plane arrives the center line of flashboard axis is respectively equal, between side plane with flashboard axis main body, fluted structure is connected, groove structure open at both ends, its groove structure comprises groove bottom and groove side, its groove bottom is parallel with side plane, its two grooves side is parallel to each other, and it is vertical with groove bottom, the top plane parallel of groove side and flashboard axis, flashboard axis has the blind hole of connection wire rod, the blind hole of connection wire rod and the center line of flashboard axis on the same line, have internal thread in the blind hole of connection wire rod, screw mandrel comprises body and shoulder, and body is circular pin, the shoulder of the outwardly annular of intermediate peripheral wall of body, and its shoulder separates leading portion and back segment screw mandrel body, and the leading portion of body has male thread, be connected between side door and housing, flashboard axis rear end is in the hollow cavity in the middle of Connection Block, flashboard axis front end is stretched in the side through hole of housing, male thread on the leading portion of the body of screw mandrel screws with the internal thread in the blind hole of the connection wire rod of flashboard axis and is connected, Connection Block and screw mandrel are connected, screw mandrel and pressure cap are connected, pressure cap is made to be enclosed within screw mandrel, pressure cap and Connection Block are connected, shoulder on screw mandrel is arranged in outside Connection Block and in the central hollow chamber of pressure cap, two bearings are had in pressure cap central hollow chamber, two bearing is enclosed within screw mandrel respectively, and the both sides of shoulder respectively on screw mandrel, the front end of Connection Block is in the through hole in the middle of side door, the tubing head of blowout prevention there is black box, black box comprises the sealing ring between Connection Block and screw mandrel and the sealing ring between Connection Block and side door, sealing ring between side door and housing, thus makes to seal between Connection Block and screw mandrel, seals between Connection Block and side door, seals between side door and housing, side door is positioned at outside the side through hole of housing, and side door is covered on side through hole, by side door bolt, side door and housing is fixed together, then by connecting bolt, Connection Block and side door is linked together, flashboard assembly comprises gate panel body and seal, gate panel body there is box structure, box structure matches with the pin thread structure of the front end of flashboard axis, it is convex straight trough, it is made up of inside groove and water jacket, namely there is convex straight trough in the outside of gate panel body, horizontal break-through pedestal, its groove bottom is plane, convex straight trough comprises inside groove and water jacket, the width of its inside groove is greater than the width of water jacket, vertical distance between two groove sides of water jacket is identical with the vertical distance between two groove bottom of two groove structures at the top of the pin thread structure of the front end of flashboard axis, the width of the groove structure groove bottom of the pin thread structure of the front end of its flashboard axis is identical with the width of the groove side of the water jacket of the box structure of gate panel body, the pin thread structure top plane of the front end of flashboard axis is identical to the degree of depth of the inside groove of the vertical distance of groove side adjacent with top plane of groove structure and the box structure of gate panel body, vertical distance between two side planes of the pin thread structure of the front end of flashboard axis is equal with the vertical distance between two groove sides of the inside groove of the convex straight trough of the box structure of gate panel body, gate panel body cooperatively interacts with seal and is connected, seal comprises top glue core, anterior glue core, and top glue core also claims top sealing, and anterior glue core also claims front sealing, housing is a pair side through hole structure, and install flashboard assembly in its side through hole, 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 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, install flashboard assembly in its side through hole, flashboard assembly hangs over flashboard axis front end, the pin thread structure of its flashboard axis to inject in the box structure on corresponding gate panel body and mutually coincide, flashboard assembly in the PATENT left side via of its housing cooperatively interacts with the flashboard assembly in the through hole of right side, relative between two, the flashboard assembly that two cooperatively interacts forms one group of flashboard assembly.
2. the tubing head of blowout prevention according to claim 1 and oil and gas wellhead device thereof, is characterized in that: the tubing head equipment Non-follow control spanner of described blowout prevention.
3. the tubing head of blowout prevention according to claim 1 and oil and gas wellhead device thereof, it is characterized in that: the side through hole of the tubing head of described blowout prevention combines the structure of formation a pair side through hole in pairs, 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, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole.
4. the tubing head of blowout prevention according to claim 1 and oil and gas wellhead device thereof, it is characterized in that: the flashboard assembly of the tubing head equipment of described blowout prevention 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, is referred to as half envelope flashboard assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410902.2U CN204804749U (en) | 2015-06-07 | 2015-06-07 | Prevent oil pipe head that spouts and oil gas wellhead assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410902.2U CN204804749U (en) | 2015-06-07 | 2015-06-07 | Prevent oil pipe head that spouts and oil gas wellhead assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804749U true CN204804749U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520410902.2U Expired - Fee Related CN204804749U (en) | 2015-06-07 | 2015-06-07 | Prevent oil pipe head that spouts and oil gas wellhead assembly thereof |
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| Country | Link |
|---|---|
| CN (1) | CN204804749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639904A (en) * | 2016-12-20 | 2017-05-10 | 成都佰思汇信科技有限责任公司 | Composite four-way structure |
-
2015
- 2015-06-07 CN CN201520410902.2U patent/CN204804749U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639904A (en) * | 2016-12-20 | 2017-05-10 | 成都佰思汇信科技有限责任公司 | Composite four-way structure |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
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