CN212837668U

CN212837668U - Novel casing head

Info

Publication number: CN212837668U
Application number: CN202020967712.1U
Authority: CN
Inventors: 高广群; 付先超; 姜军
Original assignee: Shandong Huaheng Intelligent Equipment Co ltd
Current assignee: Shandong Huaheng Intelligent Equipment Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-03-30
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a novel casing head, including the casing head body, first through-hole has been seted up to the inside of casing head body, the inside one end shape of first through-hole is big-end-up's wedge shape, the inside of first through-hole is run through there is the suspension sleeve, the suspension sleeve is located the inside one end surface cover of first through-hole and establishes the fixedly connected with hanger, a plurality of first sealed pads of surface embedding fixedly connected with of hanger. The utility model discloses in, spacing spout on the hanger and the spacing slider in the first through-hole cooperate to can avoid when fixed hanger, the hanger takes place to rotate, thereby cause the condition of sealed failure, then tighten fixing bolt, thereby drive gland and clamp plate and fix the hanger in the inside of casing head body, avoided the potential safety hazard of scurrying on the suspension sleeve, simplify the installation of suspension sleeve and hanger, reduced the intensity of installation operation.

Description

Novel casing head

Technical Field

The utility model relates to an oil gas well import control equipment technical field especially relates to a novel casing head.

Background

The casing head is an important connection control device in oil and gas well engineering, is used for connecting casings and supporting the gravity of the casings, seals annular spaces among all layers of pipes, provides transitional connection for installing a blowout preventer and a tubing head and a Christmas tree, and can carry out construction operations such as mud filling, mud squeezing, monitoring, balance liquid filling and the like through two side ports on a casing head body;

the existing casing head usually uses a jackscrew component to fix the hanger in the casing head, the jackscrew component is easy to bend in the using process, so that the fixing of the hanger fails, and meanwhile, the hanger can rotate when being fixed due to the fact that no limiting device is arranged when the hanger is fixed, so that the hanger fails to be fixed, and meanwhile, the sealing performance of the hanging casing is also influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel casing head.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel casing head comprises a casing head body, wherein a first through hole is formed in the casing head body, one end of the interior of the first through hole is in a wedge shape with a large top and a small bottom, a hanging sleeve penetrates through the interior of the first through hole, a fixedly connected hanger is sleeved on the outer surface of one end, located in the first through hole, of the hanging sleeve, a plurality of first sealing gaskets are fixedly embedded in the outer surface of the hanger, limiting sliding grooves are symmetrically formed in the outer surface of the hanger and located below the first sealing gaskets, limiting sliding blocks corresponding to the limiting sliding grooves are fixedly connected to the inner wall of the first through hole and are in sliding connection with the interior of the limiting sliding grooves, grooves are formed in the positions, located outside the first through hole, of the upper surface of the casing head body, the top end of the hanger extends into the grooves, and a gland is connected to the upper surface of the casing head body in a clamping mode, hang sheathed tube top and run through the gland, the surface of gland and the fixed position that is close to the hanger is connected with the clamp plate, the lower surface of clamp plate contacts with the upper surface of hanger, the fixedly connected with connecting plate is established to the surface of casing head body and the position cover that is close to the gland, run through fixedly connected with fixing bolt between gland and the connecting plate, the last fixed surface of gland is connected with the ring flange, the second through-hole has been seted up to the upper surface central point of ring flange, just hang sheathed tube top and run through the second through-hole and extend to the top of ring flange, a plurality of mounting holes have been seted up to the upper surface of ring flange annular all around, the surface of casing head body just is close to the position both sides through fixedly connected with bypass joint of bottom.

As a further description of the above technical solution:

the hanger is in a wedge shape with a large upper part and a small lower part, and the hanger is matched with the inner wall of the first through hole.

As a further description of the above technical solution:

the gland is in sliding connection with the outer surface of the suspension sleeve.

As a further description of the above technical solution:

and a second sealing gasket is fixedly connected to the outer surface of the pressing plate in an embedded manner.

As a further description of the above technical solution:

and one end of the bypass connector, which is positioned outside the casing head body, is fixedly connected with a plug.

As a further description of the above technical solution:

and the outer surface of the casing head body and the outer surface of the position below the bypass joint are provided with external threads.

The utility model discloses following beneficial effect has:

this novel casing head, casing head body through setting up, the hanger, spacing spout, limit slide, the suspension sleeve, first sealed pad, the gland, clamp plate and fixing bolt, put into the first through-hole of casing head body with suspension sleeve and hanger, make spacing spout on the hanger and limit slide in the first through-hole cooperate, thereby can avoid when fixed hanger, the hanger takes place to rotate, thereby cause the condition of close failure, then tighten fixing bolt, thereby drive gland and clamp plate and fix the hanger in the inside of casing head body, the potential safety hazard of scurrying on the suspension sleeve has been avoided, first sealed pad can increase the leakproofness simple structure between hanger and the first through-hole simultaneously, the installation of suspension sleeve and hanger has been simplified, the well head operating procedure has been made things convenient for greatly, the intensity of installation operation has been reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a top view of the present invention.

Illustration of the drawings:

1. a casing head body; 2. a first through hole; 3. suspending the casing; 4. a hanger; 5. a first gasket; 6. A limiting chute; 7. a limiting slide block; 8. a groove; 9. a gland; 10. pressing a plate; 11. a second gasket; 12. a connecting plate; 13. fixing the bolt; 14. a flange plate; 15. a second through hole; 16. mounting holes; 17. a bypass connection; 18. a plug; 19. and (4) external threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a novel casing head comprises a casing head body 1, a first through hole 2 is formed in the casing head body 1, one end of the interior of the first through hole 2 is in a wedge shape with a large top and a small bottom, a suspension sleeve 3 penetrates through the interior of the first through hole 2, a hanger 4 is fixedly connected with an outer surface sleeve of one end of the suspension sleeve 3, which is positioned in the interior of the first through hole 2, a plurality of first sealing gaskets 5 are fixedly connected with the outer surface of the hanger 4 in an embedded manner, limiting sliding grooves 6 are symmetrically formed in the outer surface of the hanger 4 and below the first sealing gaskets 5, limiting sliding blocks 7 corresponding to the limiting sliding grooves 6 are fixedly connected with the inner wall of the first through hole 2, the limiting sliding blocks 7 are connected with the interior of the limiting sliding grooves 6 in a sliding manner, a groove 8 is formed in the position, which is positioned outside the first through hole 2, and on the upper surface of the casing head body 1, the upper surface of the casing head body 1 is connected with a gland 9 in a clamping way, the top end of the suspension casing 3 penetrates through the gland 9, the outer surface of the gland 9 and the position close to the hanger 4 are fixedly connected with a pressure plate 10, the lower surface of the pressure plate 10 is contacted with the upper surface of the hanger 4, the outer surface of the casing head body 1 and the position close to the gland 9 are sleeved with a connecting plate 12 which is fixedly connected with the outer surface of the casing head body, a fixing bolt 13 is fixedly connected between the gland 9 and the connecting plate 12 in a penetrating way, the upper surface of the gland 9 is fixedly connected with a flange 14, the central position of the upper, and the top of hanging sleeve 3 runs through second through-hole 15 and extends to the top of ring flange 14, and a plurality of mounting holes 16 have been seted up to the upper surface of ring flange 14 all around the annular, and the position both sides that just are close to the bottom of the surface of casing head body 1 run through fixedly connected with bypass joint 17.

The hanger 4 is in a wedge shape with a large upper part and a small lower part, the hanger 4 is matched with the inner wall of the first through hole 2, and the hanger 4 can be stably fixed in the first through hole 2 through the wedge shape; the gland 9 is connected with the outer surface of the suspension sleeve 3 in a sliding manner, so that the gland 9 can move stably when the fixing bolt 13 is screwed down; the outer surface of the pressure plate 10 is fixedly connected with a second sealing gasket 11 in an embedded manner, and the second sealing gasket 11 can increase the sealing property between the pressure plate 10 and the hanger 4 and also plays a role in protecting the hanger 4; one end of the bypass connector 17, which is positioned outside the casing head body 1, is fixedly connected with a plug 18, so that impurities can be prevented from entering the casing head when the casing head is installed; the outer surface of the casing head body 1 and the outer surface of the position below the bypass joint 17 are provided with external threads 19, and the external threads 19 are convenient for being connected with a surface casing.

The working principle is as follows: when using novel casing head, put into casing head body 1's first through-hole 2 with suspension sleeve 3 and hanger 4, make spacing spout 6 on the hanger 4 and the spacing slider 7 in the first through-hole 2 cooperate, thereby can avoid when fixed hanger 4, hanger 4 takes place to rotate, thereby cause the condition of close failure, then tighten fixing bolt 13, thereby it fixes hanger 4 in casing head body 1's inside to drive gland 9 and clamp plate 10, the potential safety hazard of scurrying on suspension sleeve 3 has been avoided, first sealed pad 5 can increase the leakproofness simple structure between hanger 4 and the first through-hole 2 simultaneously, suspension sleeve 3 and hanger 4's installation has been simplified, the well head operating procedure has been made things convenient for greatly, the intensity of installation operation has been reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a novel casing head, includes casing head body (1), its characterized in that: the sleeve head comprises a sleeve head body (1), wherein a first through hole (2) is formed in the sleeve head body (1), one end of the first through hole (2) is in a wedge shape with a large top and a small bottom, a hanging sleeve (3) penetrates through the first through hole (2), a hanger (4) is fixedly connected with the outer surface of one end, located in the first through hole (2), of the hanging sleeve (3), a plurality of first sealing gaskets (5) are fixedly connected with the outer surface of the hanger (4) in an embedded mode, limiting sliding grooves (6) are symmetrically formed in the outer surface of the hanger (4) and located below the first sealing gaskets (5), limiting sliding blocks (7) corresponding to the limiting sliding grooves (6) are fixedly connected to the inner wall of the first through hole (2), the limiting sliding blocks (7) are connected with the inner portion of the limiting sliding grooves (6) in a sliding mode, grooves (8) are formed in the position, located outside the first through hole (2), of the upper surface of the sleeve head body, the top end of the hanger (4) extends to the inside of the groove (8), the upper surface of the casing head body (1) is connected with a gland (9) in a clamping manner, the top end of the hanging casing (3) penetrates through the gland (9), the outer surface of the gland (9) is close to a position fixedly connected with pressing plate (10) of the hanger (4), the lower surface of the pressing plate (10) is in contact with the upper surface of the hanger (4), the outer surface of the casing head body (1) is sleeved with a fixedly connected with connecting plate (12) close to the position of the gland (9), a fixing bolt (13) penetrates through the position between the gland (9) and the connecting plate (12), the upper surface of the gland (9) is fixedly connected with a flange (14), a second through hole (15) is formed in the center position of the upper surface of the flange (14), and the top end of the hanging casing (3) penetrates through the second through hole (15) and extends to the upper side of the flange (14, a plurality of mounting holes (16) are annularly formed in the periphery of the upper surface of the flange plate (14), and two sides of the position, close to the bottom end, of the outer surface of the casing head body (1) penetrate through and are fixedly connected with bypass connectors (17).

2. The new casing head as claimed in claim 1, wherein: the hanger (4) is in a wedge shape with a large upper part and a small lower part, and the hanger (4) is matched with the inner wall of the first through hole (2).

3. The new casing head as claimed in claim 1, wherein: the gland (9) is connected with the outer surface of the suspension sleeve (3) in a sliding mode.

4. The new casing head as claimed in claim 1, wherein: and a second sealing gasket (11) is fixedly connected to the outer surface of the pressing plate (10) in an embedded manner.

5. The new casing head as claimed in claim 1, wherein: and one end of the bypass joint (17) positioned outside the casing head body (1) is fixedly connected with a plug (18).

6. The new casing head as claimed in claim 1, wherein: and the outer surface of the casing head body (1) and the outer surface of the position below the bypass joint (17) are provided with external threads (19).