CN116255106A

CN116255106A - Anti-theft integrated oil extraction gas wellhead device

Info

Publication number: CN116255106A
Application number: CN202211596485.6A
Authority: CN
Inventors: 祖玉刚; 邹勇; 秦志坚; 陈善礼; 周世玉
Original assignee: Jiangsu Jinshi Machinery Group Co ltd
Current assignee: Jiangsu Jinshi Machinery Group Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-13
Anticipated expiration: 2042-12-12
Also published as: CN116255106B

Abstract

The invention discloses an anti-theft integrated oil and gas well head device, which comprises a mounting assembly, a limiting assembly and a locking assembly, wherein the mounting assembly comprises a flange arranged on a four-way pipe and a valve sleeve communicated with the flange; even if the ball can be clamped, the ball is easy to slide due to smooth surface, so that the threaded disc cannot move along the threaded opening, and the unlocking purpose cannot be realized.

Description

Anti-theft integrated oil extraction gas wellhead device

Technical Field

The invention relates to the technical field of oil gas collection, in particular to an anti-theft integrated oil extraction gas wellhead device.

Background

The oil pipe four-way is used for hanging oil pipes, sealing oil, casing annular space and connecting the christmas tree. The drilling four-way valve is an important component of an oil and gas well wellhead device, is connected with a blowout preventer in the drilling installation process and establishes an internal circulation, is taken out as a drilling tool after the drilling is completed, has great reduction in utilization value, simultaneously, with the improvement of oil (gas) extraction technology of an oil field, more casing non-tie-back field conditions occur, a double-stage casing head is used for traditional casing tie-back and non-tie-back structures, a lower casing head hangs 9.5/8 'casing unchanged, a 7' casing tie-back is used for hanging a 7 'casing hanger in an upper casing head, a blowout preventer and a cushion ring of a connecting part can be tested by hanging the blowout preventer and the cushion ring of the connecting part in a hanging manner if the 7' casing is not tie-back, and the casing of the upper casing head can be tested by pressure test.

Because oil gas collection is a high-risk industry, some oil pipe four-way joints or drilling four-way joints can be arranged in areas where people smoke is wasted, the oil pipe four-way joints or the drilling four-way joints in the areas are widely spread and basically maintained by personnel inspection, and accidents are caused by the fact that some illegal personnel easily steal the oil pipe four-way joints or the drilling four-way joints.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.

The present invention has been made in view of the above-described problem of theft.

One of the purposes of the invention is to provide an anti-theft integrated oil and gas wellhead device, which can prevent a person without a specific key from rotating a hand wheel and a bolt.

In order to solve the technical problems, the invention provides the following technical scheme: an anti-theft integrated oil and gas wellhead device, wherein: comprising the steps of (a) a step of,

the mounting assembly comprises a flange arranged on the four-way pipe and a valve sleeve communicated with the flange, wherein the flange is provided with a limiting assembly, and the limiting assembly comprises a socket arranged on the flange and a bolt spliced with the socket.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the bolt is provided with a connecting hole, a spring is arranged in the connecting hole, and an abutting piece is arranged on one end face of the spring.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the connecting hole inner wall is also provided with a connecting port which can be connected with the abutting piece, and the inner cavity of the connecting port is provided with a movable assembly which comprises a inserted link which can be inserted into the connecting hole.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the connecting plate is arranged on the inserted link, a first spring is arranged on one end face of the connecting plate, and a fixing plate connected with the inner wall of the connecting port is arranged on one end face of the first spring.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the connecting port is communicated with a through hole formed in the valve sleeve, the inserted link penetrates through the fixing plate and extends into the through hole, and the through end of the inserted link is provided with the matching plate.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the hand wheel is installed to the grafting in the through-hole, and the hand wheel has been installed to the outside one end of through-hole to the bull stick extension, has seted up in the bull stick and has placed the mouth, is provided with adjusting part in the place the mouth, including installing the horizontal pole at the mouth inner chamber of placing, has cup jointed the movable strip on the horizontal pole, and the movable strip is connected with the limit groove on the joining in marriage the board, and the movable strip extends to the through-hole inner chamber.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the inner cavity of the placing port is provided with a second spring, one end face of the second spring is fixed with a moving rod, and the moving rod is provided with an extrusion piece corresponding to two end faces of the moving strip.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the anti-theft assembly is further arranged in the placing port, the anti-theft assembly comprises a threaded port communicated with the placing port and a plug-in port communicated with the threaded port, the movable rod extends into the threaded port, a threaded disc is connected in the threaded port in a threaded mode, a rod body extending into the plug-in port is arranged on one end face of the threaded disc, a ball is arranged on one end face of the rod body, and a slot for rotating is formed in the ball.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the inserting slot is internally inserted with an inserting strip, and one end face of the inserting strip is provided with a connecting rod extending to the outside of the inserting port.

As a preferable scheme of the anti-theft integrated oil and gas wellhead device, the invention comprises the following steps: the limiting plate is also arranged at the communication end between the inserting port and the outside, and an opening groove corresponding to the cutting and the connecting rod is formed in the limiting plate.

The invention has the beneficial effects that: because the ball is arranged in the inserting port, the general tool cannot directly contact the ball, and further, the difficulty of the general tool in driving the ball to rotate is increased because the surface of the ball is smooth; even if the ball can be clamped, the ball is easy to slide due to smooth surface, so that the threaded disc cannot move along the threaded opening, and the unlocking purpose cannot be realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the flange and valve sleeve of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a in accordance with the present invention.

Fig. 4 is an enlarged view of fig. 2B in accordance with the present invention.

Fig. 5 is a cross-sectional view of the turning lever of the present invention.

Fig. 6 is an enlarged view of fig. 2 at C in accordance with the present invention.

Fig. 7 is an enlarged view of the invention at D of fig. 1.

Fig. 8 is a cross-sectional view of the connecting rod of the present invention.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 4, in a first embodiment of the present invention, an anti-theft device for a wellhead device is provided, which includes a mounting assembly 100, a limiting assembly 200 and a moving assembly 300, wherein by pressing a abutting piece 202b-1 on a bolt 202 in the limiting assembly 200 against an inner wall of a socket 201, when the abutting piece 202b-1 on the bolt 202 moves to a connection port 203, the abutting piece is restored into the connection port 203 due to elasticity of a spring 202b, so that a user can definitely limit the position of the bolt 202 without twisting;

the flange 101 in the installation assembly 100 can be fixed with the flange plate on the four-way pipe N1 through the bolts 202 inserted in the corresponding inserting holes 201, the inserting holes 201 and the bolts 202 are multiple, but only two corresponding inserting holes 201 and bolts 202 are provided with the connecting ports 203 and the connecting holes 202a, as only two bolts 202 are needed, the flange 101 can not be maliciously disassembled, the inner wall of the inserting hole 201 corresponding to the bolts 202 is provided with threads, the flange 101 and the flange plate on the four-way pipe N1 are connected together when the bolts 202 are twisted into the inserting holes 201, the valve sleeve 102 is fixed with one side of the flange 101, a through hole in the middle of the flange 101 is correspondingly communicated with a through hole 102a in the valve sleeve 102, the through hole 102a is formed in the middle of the valve sleeve 102, a rotating rod 102b is inserted into the through hole 102a, a rotating rod 102b is tightly attached to the inner wall of the through hole 102a, the corresponding position of the rotating rod 102b and the connecting ports 203 is provided with an opening for the moving rod 402, one end of the rotating rod 102b extends to the outside of the valve sleeve 102 and is fixed with a hand wheel 102b-1, and the inner cavity of the rotating rod 102b is also provided with a placing port 102c.

The connecting hole 202a in the limiting assembly 200 is formed in one side of the bolt 202, the spring 202b is fixed on the bottom wall of the connecting hole 202a, the abutting piece 202b-1 is fixed on the outward end face of the spring 202b, the abutting piece 202b-1 is round, the abutting piece 202b-1 is retracted under extrusion due to the arc shape of the round ball, so that the bolt 202 can twist along the socket 201, the abutting piece 202b-1 can be inserted into the connecting port 203 formed in the socket 201, the connecting port 203 extends into the valve sleeve 102, the caliber of the connecting port 203 is larger than that of the connecting hole 202a, and the abutting piece 202b-1 in the connecting hole 202a can be inserted into the connecting port 203 more easily.

The fixed plate 304 in the moving assembly 300 is fixed with the inner wall of the connecting port 203, the fixed plate 304 is close to the communication position between the connecting port 203 and the through port 102a, the middle part of the fixed plate 304 penetrates through the inserted link 301, one end of the inserted link 301 close to the socket 201 is sleeved with the fixed connecting plate 302, a number one spring 303 is fixed between the connecting plate 302 and the fixed plate 304, the inserted link 301 is connected with the fixed plate 304 through the number one spring 303 due to the fact that the connecting plate 302 fixed on the inserted link 301 can move back and forth while being limited, in addition, the connecting plate 302 is attached to the inner wall of the connecting port 203, the inserted link 301 is located in the middle of the number one spring 303, and one end of the inserted link 301 away from the socket 201 extends into the through port 102a formed in the valve sleeve 102 and is fixed with the matched plate 305.

Example 2

Referring to fig. 1 to 8, a second embodiment of the present invention is different from the first embodiment in that: the adjusting component 400 and the anti-theft component 500 which are arranged in the placing opening 102c are added on the basis of the first embodiment, and the rotating rod 102b and the bolt 202 with the connecting hole 202a can be limited or loosened by the movement of the movable rod 404 in the adjusting component 400;

the adjusting component 400 comprises a cross rod 401 fixed at one side of the placement opening 102c, the cross rod 401 is positioned at the edge of the placement opening 102c and does not shade a moving rod 404 and an extrusion piece 405, the cross rod 401 is sleeved with the moving rod 402, the moving rod 402 penetrates through the rotating rod 102b, the moving rod 402 penetrates through a groove generated outside the rotating rod 102b and is a moving groove for the moving rod 402 to move left and right, so that the moving rod 402 can be enabled to have enough space inclination under stress and can be clamped with a limit groove 304a on the matching plate 305, one end surface of the moving rod 402 extending to the outer side of the rotating rod 102b corresponds to the insertion end of the limit groove 304a on the matching plate 305, the caliber of the limit groove 304a is larger than the width of the moving rod 402, so that the fault tolerance rate of the moving rod 402 when the moving rod 402 is inserted into the limit groove 304a is improved, a bottom wall of the placement opening 102c is fixed with a second spring 403, one end surface of the second spring 403 is used for fixing the moving rod 404, the moving rod 404 is limited by a plate body attached to the inner wall of the placement opening 102c, the second spring 403 is prevented from shaking the moving rod 404, the moving rod 404 is enabled to correspond to the limit groove on the matching plate body, the inner wall of the pressing rod 405 is attached to the inner wall of the placement opening 102c, the extrusion piece is not attached to the inner wall of the extrusion piece 405 is attached to the inner wall of the moving rod 405, and the extrusion piece is not attached to the lower side of the moving rod 402, and the opposite to the extrusion piece is enabled to move along the direction opposite to the direction to move side of the opposite side of the direction to move side of the extrusion piece through the opposite side.

In the anti-theft component 500, a threaded opening 501 is formed in a rotating rod 102b and is close to a hand wheel 102b-1, the threaded opening 501 is communicated with a placing opening 102c, one end of a moving rod 404, which is far away from a second spring 403, extends to an inner cavity of the threaded opening 501, one end of the threaded opening 501, which is far away from the placing opening 102c, is communicated with a plug opening 502, in addition, a threaded disc 503 is connected in the threaded opening 501 in a threaded manner, an inner wall of one end of the threaded opening 501, which is far away from the placing opening 102c, is provided with an outwards extending blocking block, so that the threaded disc 503 connected in the threaded opening 501 is prevented from moving into the plug opening 502, a rod body 504 is fixed near one end face of the plug opening 502, the rod body 504 extends to the inner cavity of the plug opening 502 and fixes a ball 505, a plurality of slots 505a are formed in an annular manner on the side wall of the ball 505, the plug opening 505a penetrates through the side wall of the ball 505 and is distributed in an annular manner, and the width of the plug opening 505 is not deep, the ball 505 can be prevented from being driven to rotate by other personnel by inserting pliers into the slot 505a, the cutting 506 can be inserted into the slot 505a, the connecting rod 507 is fixed on the width end face of the cutting 506, the thickness of the cutting 506 is smaller than that of the slot 505a, the cutting 506 is inclined under the pressing, so that the cutting 506 can be inserted into the slot 505a on the ball 505 through hand pressing after being inserted into the inserting port 502, the ball 505 is clamped and fastened by the combination of the cutting 506, sliding wires can not occur, the connecting rod 507 can be taken out from the inserting port 502, the limiting plate 508 is fixed at the communicating end of the inserting port 502 and the outside, the surface of the limiting plate 508 is parallel to the rotating rod 102b, the limiting plate 508 is provided with an opening slot 508a corresponding to the cutting 506 and the connecting rod 507, and the cutting 506 are correspondingly shaped and sized.

When the hand wheel 102b-1 needs to be rotated, the connecting rod 507 is taken, the cutting 506 on the rotating rod 507 is aligned with the open slot 508a and then is inserted into the inserting port 502, the cutting 506 is pressed after insertion, the cutting 506 is precisely attached to the bottom wall of the slot 505a on the ball 505, at the moment, the connecting rod 507 is rotated, the ball 505 drives the threaded disc 503 to rotate under the extrusion of the cutting 506 to the inner wall of the slot 505a, the threaded disc 503 moves along the threaded port 501, the moving rod 404 is extruded, the moving rod 404 extrudes the second spring 403 and moves, at the moment, the extrusion part 405 on the moving rod 404 opposite to the moving direction of the moving rod 404 extrudes the moving rod 402, in addition, in order to make the moving bar 402 correspond to the matching plate 305 conveniently, a pointing mark corresponding to the position of the matching plate 305 can be coated on the hand wheel 102b-1, at this time, the rotating rod 102b can normally rotate due to lack of limiting, in addition, when the matching plate 305 lacks extrusion, the inserted rod 301 connected with the matching plate 305 can also drive the inserted rod 301 to be pulled out from the connecting hole 202a on the bolt 202 under the reset of the first spring 303, and at this time, the bolt 202 on the flange 101 can be normally detached.

When the flange 101 needs to be detached and the hand wheel 102b-1 needs to be rotated, the ball 505 is reversely rotated, so that the threaded disc 503 in the threaded port 501 moves towards the plug-in port 502, at this time, the moving rod 404 abutting against the threaded disc 503 is reset by the elasticity of the second spring 403 and moves towards the threaded port 501, so that the extrusion piece 405 opposite to the moving direction of the moving rod 404 on the moving rod 404 extrudes the moving rod 402, at this time, the extrusion of the moving rod 402 extrudes the limit groove 305a on the matching plate 305, and the contact end of the moving rod 402 and the limit groove 305a is inclined, so that the moving rod 402 pushes up the matching plate 305 from the inclined state to the vertical state to move towards the connecting port 203, thereby pushing the plug-in rod 301 to insert into the connecting hole 202a on the bolt 202, and the hand wheel 102b-1 cannot be twisted nor the bolt 202 can be twisted.

When the ball 505 is to be twisted by using another unlocking tool, the sleeve rod which is consistent with the round opening in the middle of the opening 508a in size cannot be sleeved with the ball 505 due to the shielding of the limiting plate 508 and the limitation of the opening 508a, and by adopting an instrument like pliers, the hand wheel 102b-1 is prevented from being twisted or the flange 101 is prevented from being detached by a non-staff without keys due to the fact that the gap of the opening 508a is small or the contact surface is insufficient.

In addition, the four-way pipe N1 is on the long-length christmas tree, and the valve rod 102b is located at one end of the inner cavity of the flange 101, to be connected with the valve rod on the valve body, and the valve body is used for closing the branch pipe on the four-way pipe N1, but this is not the improvement direction of the device, and only a brief description is made here for the sake of brevity of the device.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims

1. An anti-theft integrated oil extraction gas wellhead device is characterized in that: comprising the steps of (a) a step of,

the mounting assembly (100) comprises a flange (101) mounted on the four-way pipe (N1) and a valve sleeve (102) communicated with the flange (101), wherein the flange (101) is provided with a limiting assembly (200) which comprises a socket (201) formed in the flange (101) and a bolt (202) spliced with the socket (201).

2. The tamper-resistant integrated oil and gas wellhead assembly of claim 1, wherein: the bolt (202) is provided with a connecting hole (202 a), a spring (202 b) is arranged in the connecting hole (202 a), and a supporting piece (202 b-1) is arranged on one end face of the spring (202 b).

3. The tamper-resistant integrated oil and gas wellhead assembly of claim 2, wherein: the inner wall of the connecting hole (202 a) is also provided with a connecting port (203) which can be connected with the abutting piece (202 b-1), and the inner cavity of the connecting port (203) is provided with a moving assembly (300) which comprises a plug rod (301) which can be inserted into the connecting hole (202 a).

4. The tamper-resistant integrated oil and gas wellhead assembly of claim 3, wherein: be provided with connecting plate (302) on inserted bar (301), no. one spring (303) is installed to connecting plate (302) one end face, just No. one spring (303) one end face install with fixed plate (304) of connector (203) inner wall connection.

5. The tamper-resistant integrated oil and gas wellhead assembly of claim 4, wherein: the connecting port (203) is communicated with a through hole (102 a) formed in the valve sleeve (102), the inserting rod (301) penetrates through the fixing plate (304) to extend into the through hole (102 a), and a matching plate (305) is arranged at the penetrating end of the inserting rod (301).

6. The tamper-resistant integrated oil and gas wellhead assembly of claim 5, wherein: the utility model discloses a hand-free rotary rod structure is characterized in that a rotary rod (102 b) is inserted in a through hole (102 a), the rotary rod (102 b) extends to one end outside the through hole (102 a) and is provided with a hand wheel (102 b-1), a placing port (102 c) is arranged in the rotary rod (102 b), an adjusting component (400) is arranged in the placing port (102 c), the hand-free rotary rod structure comprises a transverse rod (401) arranged in an inner cavity of the placing port (102 c), a movable strip (402) is sleeved on the transverse rod (401), the movable strip (402) is connected with a limiting groove (305 a) on a matching plate (305), and the movable strip (402) extends to the inner cavity of the through hole (102 a).

7. The tamper-resistant integrated oil and gas wellhead assembly of claim 6, wherein: the inner cavity of the placement port (102 c) is provided with a second spring (403), one end face of the second spring (403) is fixed with a moving rod (404), and the moving rod (404) is provided with an extrusion piece (405) corresponding to two end faces of the moving bar (402).

8. The tamper-resistant integrated oil and gas wellhead assembly of claim 7, wherein: still be provided with anti-theft component (500) in placing mouth (102 c), include with place screw thread mouth (501) of mouth (102 c) intercommunication and with grafting mouth (502) of screw thread mouth (501) intercommunication, movable rod (404) extend to in screw thread mouth (501), screw thread dish (503) are connected with to screw thread mouth (501) internal thread, screw thread dish (503) one end face is provided with and extends to body of rod (504) in grafting mouth (502), body of rod (504) one end face is provided with ball (505), offer on ball (505) and be used for pivoted slot (505 a).

9. The tamper-resistant integrated oil and gas wellhead assembly of claim 8, wherein: an inserting strip (506) is inserted into the slot (505 a), and a connecting rod (507) extending to the outside of the inserting port (502) is arranged on one end face of the inserting strip (506).

10. An anti-theft integrated oil and gas wellhead device as claimed in claims 1 to 9, wherein: a limiting plate (508) is further arranged at the communication end between the plug-in port (502) and the outside, and an opening groove (508 a) corresponding to the plug strip (506) and the connecting rod (507) is formed in the limiting plate (508).