CN207892577U - A kind of wellhead assembly with anti-leak function - Google Patents

Abstract

The utility model discloses a kind of wellhead assemblies with anti-leak function, including casing head, the top of described sleeve pipe head is fixed and is communicated with four-way junction of casing, the left side of described sleeve pipe four-way is equipped with casing pressure table, described sleeve pipe four-way right side is internally provided with casing valve, the one end of described sleeve pipe four-way far from casing head is fixedly connected with lower flange, the upper surface of the lower flange is fixedly connected with preventer, the one end of the preventer far from lower flange is fixedly connected with upper flange plate, the upper surface of the upper flange plate is fixedly connected with oil pipe four-way, the left side of oil pipe four-way is equipped with oil pressure gauge, oil pipe four-way right side is internally provided with production valve, the medial surface of oil pipe four-way is threaded with paraffin valve, one end of paraffin valve runs through oil pipe four-way and extends to the outside of oil pipe four-way, the lateral surface fixation of oil pipe four-way is communicated with flowline.The wellhead assembly with anti-leak function, has an anti-leak function, convenient for the user to operate and the advantages of be conducive to marketing.

Description

A kind of wellhead assembly with anti-leak function

Technical field

The utility model is related to wellhead assembly technical field, specially a kind of wellhead assembly with anti-leak function.

Background technology

Wellhead assembly is to be mounted on well head, suspension sleeve, oil pipe in oil and natural gas drilling well, and seal oil pipe and set The device of pipe and each layer casing annulus, composition material have tube head, preventer group etc., effect control air-liquid Fluid pressure and Direction, including production tree and christmas tree, wellhead assembly play the role of in oil exploitation and gas drilling it is very important, can Effectively to prevent the phenomenon that blowout, is conducive to the exploitation for facilitating user, while the impurity in oil can be cleared up, is stone Inevitable device in oil exploitation and natural gas extraction, preventer are for being closed in the operation process such as formation testing, well workover, completion Well head prevents gas blowout accident, and full envelope and half is sealed two kinds of functions and is integrated, have it is simple in structure, it is easy to operate, it is high pressure resistant The features such as, it is the security seal wellhead assembly that oil field commonly prevents blowout, when oil drilling, is mounted on casing head of well head, For controlling high pressure oil, gas and the blowout apparatus of water, when well oil atmospheric pressure is very high, preventer can close well head, from brill In bar when indentation weighted mud, there is four-way under flashboard, alternatively go out the mud by gas cut, increase the pressure of fluid column in well, with pressure The firmly ejection of high-pressure oil gas.

In the safety sealing device that oil field prevents blowout, preventer is a kind of more extensive device of application, but with The continuous development of society, it is also problem to be treated that leakage is prevented during oil transportation, and the leakage of oil can be led The pollution for causing environment, is unfavorable for the cleaning of people, and a kind of existing wellhead assembly can be good at ensureing petroleum pipeline in transport The phenomenon that being not in leakage.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of wellhead assembly with anti-leak function, has Anti-leak function, it is convenient for the user to operate and the advantages of be conducive to marketing, it solves existing wellhead assembly and does not have anti-leak Function, the problem of being not easy to user's operation and be unfavorable for marketing.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions：A kind of well head dress with anti-leak function It sets, including casing head, the top of described sleeve pipe head, which is fixed, is communicated with four-way junction of casing, and the left side of described sleeve pipe four-way is equipped with casing pressure Table, described sleeve pipe four-way right side are internally provided with casing valve, and the one end of described sleeve pipe four-way far from casing head is fixedly connected with The upper surface of lower flange, the lower flange is fixedly connected with preventer, and the one end of the preventer far from lower flange is solid Surely it is connected with upper flange plate, the upper surface of the upper flange plate is fixedly connected with oil pipe four-way, is set on the left of the oil pipe four-way There are oil pressure gauge, oil pipe four-way right side to be internally provided with production valve, the medial surface of the oil pipe four-way is threaded with clearly One end of wax valve, the paraffin valve runs through oil pipe four-way and extends to the outside of oil pipe four-way, the lateral surface of the oil pipe four-way Fixed to be communicated with flowline, threaded one end of the flowline far from oil pipe four-way is connected with isocon, is pushed up in the isocon Wall offers the first card slot, and the inner bottom wall of the isocon offers the second card slot, and the inside of first card slot is connected with resistance Block body, the described blocking one end of valve body far from the first card slot are in contact with the inner wall of the second card slot, described to stop the interior of valve body Portion is equipped with clockwork spring, and the lateral surface of the blocking valve body is fixedly connected there are two symmetrical gasket, and one end of the clockwork spring is passed through It wears the first card slot and extends to the outside of isocon, the one end of the clockwork spring far from the first card slot is through the second card slot and extends to The outside of second card slot, one end that the clockwork spring extends to outside the second card slot are fixedly connected with rotation axis.

Preferably, the both ends of the isocon medial surface offer the first screw thread, and the outer surface of the flowline passes through The inner thread of first screw thread and isocon connects.

Preferably, the one end of the flowline far from oil pipe four-way is socketed with sealant, and the outer surface of the sealant is opened Equipped with the second screw thread compatible with the first screw thread.

Preferably, first card slot and the second card slot are respectively positioned in same perpendicular, first card slot and second The inner wall of card slot has been fixedly connected with sealing-plug.

Preferably, one end that the clockwork spring extends to outside isocon is fixedly connected with warning device, the warning device Positioned at the top of isocon.

Preferably, the outer surface of the rotation axis is fixedly connected there are three swing handle, outside each swing handle Surface is socketed with Anti-slip cover.

(3) advantageous effect

The utility model provides a kind of wellhead assembly with anti-leak function, has following advantageous effect：

(1) should with wellhead assembly of anti-leak function, by sealant and the second screw thread can by isocon with it is fuel-displaced Gap between pipe is sealed, and the phenomenon that being conducive to prevent flowline from leaking with isocon junction, is conducive to conveniently User installation flowline and isocon are conducive to the leakproofness for improving isocon, are conducive to user-friendly, pass through the first spiral shell Line can facilitate user to be threadedly coupled flowline with extraneous oil pipe by isocon, and isocon interior arrangement here is just It is equivalent to a valve body, device here also has warning device, can effectively prevent wellhead assembly and leaks, is conducive to User-friendly and use can will stop that valve body is fixed on the inside of isocon, has by the first card slot and the second card slot Be conducive to the oil flow for facilitating user to adjust inside isocon by stopping valve body conducive to oil is facilitated, be conducive to facilitate use The use at family, while the fixation of clockwork spring can be facilitated, be conducive to the length for facilitating user to adjust clockwork spring, be conducive to that user is facilitated to set Set the size of isocon inner stream flow.

(2) user should can be facilitated to find shunting by clockwork spring and warning device with the wellhead assembly of anti-leak function There is leakage phenomenon in pipe, is conducive to facilitate user to adjust the uninterrupted of blocking valve body, be conducive to it is user-friendly, simultaneously Warning device is stirred using clockwork spring, is conducive to the operation for facilitating user, is conducive to marketing, pass through swing handle and Anti-slip cover User can be facilitated to adjust rotation axis, be conducive to that user is facilitated to adjust clockwork spring, be conducive to facilitate user setting isocon inside stream The size of amount, while increasing Anti-slip cover and can effectively increase frictional force between user and swing handle, be conducive to facilitate use The operation at family, is conducive to marketing, has an anti-leak function, convenient for the user to operate and the advantages of be conducive to marketing.

Description of the drawings

Fig. 1 is the utility model casing head partial sectional view；

Fig. 2 is that the utility model stops valve body front view.

In figure：1 casing head, 2 four-way junction of casing, 3 casing pressure tables, 4 casing valves, 5 lower flanges, 6 preventers, 7 upper flange plates, 8 Oil pipe four-way, 9 oil pressure gauges, 10 production valves, 11 paraffin valves, 12 flowlines, 13 isocons, 14 first screw threads, 15 sealants, 16 the Two screw threads, 17 first card slots, 18 second card slots, 19 sealing-plugs, 20 blocking valve bodies, 21 clockwork springs, 22 rotation axis, 23 swing handles, 24 Anti-slip covers, 25 warning devices, 26 gaskets.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of wellhead assembly with anti-leak function, Including casing head 1, the top of casing head 1, which is fixed, is communicated with four-way junction of casing 2, and the left side of four-way junction of casing 2 is equipped with casing pressure table 3, casing 2 right side of four-way is internally provided with casing valve 4, and the one end of four-way junction of casing 2 far from casing head 1 is fixedly connected with lower flange 5, under The upper surface of ring flange 5 is fixedly connected with preventer 6, and the one end of preventer 6 far from lower flange 5 is fixedly connected with upper flange plate 7, the upper surface of upper flange plate 7 is fixedly connected with oil pipe four-way 8, and the left side of oil pipe four-way 8 is equipped with oil pressure gauge 9, and oil pipe four-way 8 is right Side is internally provided with production valve 10, and the medial surface of oil pipe four-way 8 is threaded with paraffin valve 11, and one end of paraffin valve 11 is run through The lateral surface fixation of oil pipe four-way 8 and the outside for extending to oil pipe four-way 8, oil pipe four-way 8 is communicated with flowline 12, flowline 12 One end far from oil pipe four-way 8 is socketed with sealant 15, and the outer surface of sealant 15 offers compatible with the first screw thread 14 Second screw thread 16 can be carried out the gap between isocon 13 and flowline 12 by sealant 15 and the second screw thread 16 close Envelope is conducive to facilitate user installation flowline the phenomenon that being conducive to prevent flowline 12 from leaking with 13 junction of isocon 12 with isocon 13, be conducive to the leakproofness for improving isocon 13, be conducive to user-friendly, flowline 12 is far from oil pipe four Logical 8 threaded one end is connected with isocon 13, and the both ends of 13 medial surface of isocon offer the first screw thread 14, flowline 12 Outer surface is connect by the first screw thread 14 with the inner thread of isocon 13, can facilitate user will be fuel-displaced by the first screw thread 14 Pipe 12 is threadedly coupled by isocon 13 with extraneous oil pipe, and 13 interior arrangement of isocon here is equivalent to a valve Body, device here also have warning device 25, can effectively prevent wellhead assembly and leak, be conducive to that user is facilitated to grasp Make and use, 13 inner roof wall of isocon offers the first card slot 17, and the first card slot 17 and the second card slot 18 are respectively positioned on same vertical In plane, the inner wall of the first card slot 17 and the second card slot 18 has been fixedly connected with sealing-plug 19, passes through the first card slot 17 and second Card slot 18 can will stop that valve body 20 is fixed on the inside of isocon 13, is conducive to facilitate oil by stopping valve body 20, favorably In facilitating user to adjust the oil flow inside isocon 13, be conducive to user-friendly, while clockwork spring 21 can be facilitated Fixation, be conducive to facilitate user to adjust the length of clockwork spring 21, be conducive to facilitate the big of 13 inner stream flow of user setting isocon Small, the inner bottom wall of isocon 13 offers the second card slot 18, and the inside of the first card slot 17 is connected with blocking valve body 20, stops valve body 20 one end far from the first card slot 17 is in contact with the inner wall of the second card slot 18, and blocking valve body 20 is internally provided with clockwork spring 21, hair One end that item 21 extends to outside isocon 13 is fixedly connected with warning device 25, and warning device 25 is located at the upper of isocon 13 Side can facilitate user to find that leakage phenomenon occurs in isocon 13, be conducive to facilitate user by clockwork spring 21 and warning device 25 The uninterrupted for adjusting blocking valve body 20, is conducive to user-friendly, while stirring warning device 25 using clockwork spring 21, has Conducive to the operation of user is facilitated, be conducive to marketing, the lateral surface of blocking valve body 20 is fixedly connected with that there are two symmetrical close One end of packing 26, clockwork spring 21 runs through the first card slot 17 and extends to the outside of isocon 13, and clockwork spring 21 is far from the first card slot 17 One end through the second card slot 18 and extend to the outside of the second card slot 18, clockwork spring 21 extends to one end outside the second card slot 18 It is fixedly connected with rotation axis 22, the outer surface of rotation axis 22 is fixedly connected there are three swing handle 23, each swing handle 23 Outer surface is socketed with Anti-slip cover 24, user can be facilitated to adjust rotation axis 22 by swing handle 23 and Anti-slip cover 24, favorably In facilitating user to adjust clockwork spring 21, be conducive to the size for facilitating 13 inner stream flow of user setting isocon, while increasing Anti-slip cover 24 can effectively increase the frictional force between user and swing handle 23, are conducive to the operation for facilitating user, are conducive to market It promotes.

Operation principle：User links together casing head 1 with underground oil wells, then production valve 10 is opened and then adjusts resistance The position of block body 20 and then the size for adjusting 13 inside oil discharge of isocon, if leakage clockwork spring 21 occur stirs alarm dress It sets 25 to be reminded, is then turned off production valve 10.

In conclusion should can will be divided by sealant 15 and the second screw thread 16 with the wellhead assembly of anti-leak function Gap between flow tube 13 and flowline 12 is sealed, and is conducive to prevent flowline 12 from leaking with 13 junction of isocon The phenomenon that, be conducive to facilitate user installation flowline 12 and isocon 13, be conducive to the leakproofness for improving isocon 13, be conducive to It is user-friendly, it can facilitate user that flowline 12 is carried out spiral shell by isocon 13 and extraneous oil pipe by the first screw thread 14 Line connects, and 13 interior arrangement of isocon here is equivalent to a valve body, and device here also has warning device 25, can be with It effectively prevents wellhead assembly from leaking, be conducive to user-friendly and use, pass through the first card slot 17 and the second card slot 18 can will stop that valve body 20 is fixed on the inside of isocon 13, is conducive to facilitate oil by stopping valve body 20, the side of being conducive to Just user adjusts the oil flow inside isocon 13, is conducive to user-friendly, while can facilitate consolidating for clockwork spring 21 It is fixed, be conducive to the length for facilitating user to adjust clockwork spring 21, be conducive to the size for facilitating 13 inner stream flow of user setting isocon, leads to Crossing clockwork spring 21 and warning device 25 can facilitate user to find that leakage phenomenon occurs in isocon 13, be conducive to that user is facilitated to adjust resistance The uninterrupted of block body 20, is conducive to user-friendly, while stirring warning device 25, the side of being conducive to using clockwork spring 21 Just the operation of user, is conducive to marketing, user can be facilitated to adjust rotation axis 22 by swing handle 23 and Anti-slip cover 24, Be conducive to that user is facilitated to adjust clockwork spring 21, be conducive to the size for facilitating 13 inner stream flow of user setting isocon, while increasing anti- Sliding sleeve 24 can effectively increase the frictional force between user and swing handle 23, be conducive to the operation for facilitating user, be conducive to Marketing solves existing wellhead assembly and does not have anti-leak function, is not easy to user's operation and is unfavorable for marketing Problem.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of wellhead assembly with anti-leak function, including casing head (1), it is characterised in that：The top of described sleeve pipe head (1) Portion, which is fixed, is communicated with four-way junction of casing (2), and the left side of described sleeve pipe four-way (2) is equipped with casing pressure table (3), and described sleeve pipe four-way (2) is right Side is internally provided with casing valve (4), and the one end of described sleeve pipe four-way (2) far from casing head (1) is fixedly connected with lower flange (5), the upper surface of the lower flange (5) is fixedly connected with preventer (6), the separate lower flange (5) of the preventer (6) One end is fixedly connected with upper flange plate (7), and the upper surface of the upper flange plate (7) is fixedly connected with oil pipe four-way (8), the oil The left side of pipe four-way (8) is equipped with oil pressure gauge (9), and oil pipe four-way (8) right side is internally provided with production valve (10), the oil The medial surface of pipe four-way (8) is threaded with paraffin valve (11), and one end of the paraffin valve (11) through oil pipe four-way (8) and is prolonged The outside of oil pipe four-way (8) is extended to, the lateral surface fixation of the oil pipe four-way (8) is communicated with flowline (12), the flowline (12) threaded one end far from oil pipe four-way (8) is connected with isocon (13), and isocon (13) inner roof wall offers first The inner bottom wall of card slot (17), the isocon (13) offers the second card slot (18), the inside clamping of first card slot (17) There are blocking valve body (20), the described one end of blocking valve body (20) far from the first card slot (17) to connect with the inner wall of the second card slot (18) It touches, the blocking valve body (20) is internally provided with clockwork spring (21), there are two the lateral surface of the blocking valve body (20) is fixedly connected One end of symmetrical gasket (26), the clockwork spring (21) through the first card slot (17) and extends to the outer of isocon (13) Portion, the one end of the clockwork spring (21) far from the first card slot (17) is through the second card slot (18) and extends to the outer of the second card slot (18) Portion, the clockwork spring (21) extend to the external one end of the second card slot (18) and are fixedly connected with rotation axis (22).

2. a kind of wellhead assembly with anti-leak function according to claim 1, it is characterised in that：The isocon (13) both ends of medial surface offer the first screw thread (14), the outer surface of the flowline (12) by the first screw thread (14) with The inner thread of isocon (13) connects.

3. a kind of wellhead assembly with anti-leak function according to claim 1, it is characterised in that：The flowline (12) one end far from oil pipe four-way (8) is socketed with sealant (15), and the outer surface of the sealant (15) offers and first Compatible second screw thread (16) of screw thread (14).

4. a kind of wellhead assembly with anti-leak function according to claim 1, it is characterised in that：First card slot (17) it is respectively positioned in same perpendicular with the second card slot (18), the inner wall of first card slot (17) and the second card slot (18) is equal It is fixedly connected with sealing-plug (19).

5. a kind of wellhead assembly with anti-leak function according to claim 1, it is characterised in that：The clockwork spring (21) It extends to the external one end of isocon (13) and is fixedly connected with warning device (25), the warning device (25) is located at isocon (13) top.

6. a kind of wellhead assembly with anti-leak function according to claim 1, it is characterised in that：The rotation axis (22) outer surface is fixedly connected there are three swing handle (23), and the outer surface of each swing handle (23) is socketed with anti- Sliding sleeve (24).