CN216553811U

CN216553811U - Slip type petroleum pipe casing head

Info

Publication number: CN216553811U
Application number: CN202123337310.7U
Authority: CN
Inventors: 蔡中飞; 郭惠惠
Original assignee: Yancheng Kaifa Petroleum Machinery Co ltd
Current assignee: Yancheng Kaifa Petroleum Machinery Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-17
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a slip type petroleum pipe casing head, which comprises a pipe casing head main body, wherein the pipe casing head main body comprises a sealing rubber ring, the outer parts of the upper side and the lower side of the sealing rubber ring are respectively connected with a pipe head top pipe and a pipe head bottom pipe, the outer part of the bottom end of the pipe head bottom pipe is provided with a pipe head base, the bottom of the pipe head base is connected with a limiting bottom ring mechanism, a slip inner pipe is connected between the pipe head top pipe and the pipe head bottom pipe inside the sealing rubber ring in an embedded mode, the top end of the pipe head top pipe is internally provided with a pressure reducing ring mechanism, the inside of the pressure reducing ring mechanism is provided with an adjusting mechanism, the top end of the slip inner pipe is internally provided with a pipeline fastening mechanism, and the side edges of the pipe head top pipe and the pipe head bottom pipe are provided with liquid adding pipelines. This slip formula petroleum pipe casing head can be convenient reduce the inner tube and rotate the transverse friction when installing, and slips lantern ring top can be convenient by spacing fixed, improve overall stability.

Description

Slip type petroleum pipe casing head

Technical Field

The utility model relates to the technical field of petroleum pipe casing heads, in particular to a slip type petroleum pipe casing head.

Background

The tubing head is a device part for connecting the casing head at the uppermost layer with a production (gas) tree to suspend the tubing and seal the annular space between the tubing and the casing. The oil pipe head is positioned above the casing head and comprises a casing four-way joint and an oil pipe hanger. The oil pipe is used for hanging an oil pipe, an underground tool and a sealed oil sleeve annular space which are lowered into a well. The casing head is used for fixing a well mouth of a drilling well, connecting a well mouth casing string, supporting the gravity of a technical casing and an oil layer casing, sealing an annular space between layers of pipes, providing transitional connection for installing a blowout preventer and a tubing head and a Christmas tree, and performing construction operations such as mud compensation, mud extrusion, monitoring, balance liquid filling and the like through two side ports on the casing head body.

The existing pipe casing head has the defects that the transverse friction force is large when the inner pipe is rotatably installed when the pipe casing head is used, and the top of the slip sleeve ring is inconvenient to be limited and fixed when the inner pipe is clamped.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a slip type petroleum pipe casing head, which aims to solve the problems that when the pipe casing head provided by the background technology is used, the transverse friction force is large when an inner pipe is rotatably installed, and the top of a slip sleeve ring is inconvenient to limit and fix when the inner pipe is clamped.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a slips formula petroleum pipe casing head, includes pipe box tube head main part, pipe box tube head main part includes the sealing rubber ring, and both sides outside is connected with tube head push pipe and tube head bottom tube respectively about the sealing rubber ring, and tube head bottom tube end externally mounted has a tube head base, and is connected with spacing bottom ring mechanism bottom the tube head base, gomphosis and be connected with the slips inner tube between the inboard tube head push pipe of sealing rubber ring and the tube head bottom tube, the inside pressure reducing ring mechanism that is equipped with in tube head push pipe top, and the inside guiding mechanism that is equipped with of pressure reducing ring mechanism, the inside pipeline fastening device that is equipped with in slips inner tube top, and tube head push pipe and tube head bottom tube side are equipped with the liquid feeding pipeline.

Preferably, decompression ring mechanism includes the gomphosis circular slot, and the gomphosis circular slot is seted up inside tube head push pipe top, and the inside gomphosis of gomphosis circular slot installs the decompression lantern ring, is annular distribution on the decompression lantern ring inner wall and installs spacing plate, and spacing plate is inside to be inlayed and to have the rotation ball.

Preferably, the pipeline fastening mechanism comprises an avoiding circular groove, the avoiding circular groove is arranged inside the top end of the slip inner pipe, adjusting springs are arranged on four sides inside the avoiding circular groove, limiting ring plates are arranged at the inner ends of the adjusting springs, and gaps between adjacent limiting ring plates are larger than zero.

Preferably, the adjusting mechanism comprises an adjusting inner groove hole, the adjusting inner groove hole is annularly distributed inside the pressure reducing lantern ring, an adjusting beam column is embedded and connected inside the adjusting inner groove hole, a rubber column is connected between the inner end of the adjusting beam column and the inner wall of the adjusting inner groove hole, and the outer end of the adjusting beam column is connected with a limiting plate.

Preferably, the limiting bottom ring mechanism comprises a limiting bottom ring, limiting upright columns are distributed and installed on the outer portion of the top end of the limiting bottom ring in an annular mode, and the limiting upright columns are connected with the tube head base in a penetrating mode.

Compared with the prior art, the utility model has the beneficial effects that: this slip formula petroleum pipe casing head can be convenient reduce the inner tube and rotate the transverse friction when installing, and slips lantern ring top can be convenient by spacing fixed, improve overall stability. This slip formula petroleum pipe casing head's tube head push pipe is inside to be equipped with decompression ring mechanism in order to alleviate the horizontal frictional force when the inner tube is fixed, and can improve the tightness of inner tube installation through pipeline fastening device in the slips inner tube to slips inner tube top can be suppressed spacing by the tube head push pipe, improves the whole convenience of pipe casing head.

Drawings

FIG. 1 is a schematic front view of a slip-type petroleum pipe casing head according to the present invention;

FIG. 2 is an enlarged schematic view of a bushing head of the slip type petroleum pipe of the present invention at location A in FIG. 1;

FIG. 3 is a schematic top view of a pipe fastening mechanism for a slip-type petroleum pipe casing head according to the present invention.

In the figure: 1. the pipe sleeve pipe head comprises a pipe sleeve pipe head main body, 101, a pipe sleeve pipe head main body, 102, a pipe sleeve pipe head main body, 103, a pipe head base, 104, a slip inner pipe, 105, a sealing rubber ring, 106, a liquid feeding pipeline, 2, a pressure reducing ring mechanism, 201, a pressure reducing ring, 202, a rotating ball, 203, a limiting plate block, 204, an embedding circular groove, 3, a pipeline fastening mechanism, 301, a limiting ring plate, 302, an adjusting spring, 303, an avoiding circular groove, 4, an adjusting mechanism, 401, an adjusting inner slotted hole, 402, an adjusting beam column, 5, a limiting bottom ring mechanism, 501, a limiting upright column, 502 and a limiting bottom ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a slip type petroleum pipe casing head comprises a pipe casing pipe head main body 1, the pipe casing pipe head main body 1 comprises a sealing rubber ring 105, the outer parts of the upper side and the lower side of the sealing rubber ring 105 are respectively connected with a pipe head top pipe 101 and a pipe head bottom pipe 102, the outer part of the bottom end of the pipe head bottom pipe 102 is provided with a pipe head base 103, the bottom of the pipe head base 103 is connected with a limiting bottom ring mechanism 5, the limiting bottom ring mechanism 5 comprises a limiting bottom ring 502, the outer part of the top end of the limiting bottom ring 502 is annularly provided with limiting upright posts 501, the limiting upright posts 501 are connected with the pipe head base 103 in a penetrating way, the structure enables a user to move the limiting upright posts 501 to adjust the distance between the pipe head base 103 and the limiting bottom ring 502, the pipe head 101 and the pipe head bottom pipe 102 on the inner side of the sealing rubber ring 105 are embedded and connected with a slip inner pipe 104, a pressure reducing ring mechanism 2 is arranged inside the top end of the pipe head top pipe 101, and an adjusting mechanism 4 is arranged inside the pressure reducing ring mechanism 2, the pressure reducing ring mechanism 2 comprises an embedded circular groove 204, the embedded circular groove 204 is arranged inside the top end of the pipe head top pipe 101, a pressure reducing sleeve ring 201 is embedded inside the embedded circular groove 204, limiting plates 203 are annularly distributed and installed on the inner wall of the pressure reducing sleeve ring 201, rotating balls 202 are embedded inside the limiting plates 203, the rotating balls 202 of the structure can be pressed outside the inner pipe, when the inner pipe rotates, the friction force can be reduced through the rotation of the rotating balls 202 in the limiting plates 203, a pipeline fastening mechanism 3 is arranged inside the top end of the slip inner pipe 104, and liquid adding pipelines 106 are arranged on the side edges of the pipe head top pipe 101 and the pipe head bottom pipe 102, the structure enables the pipeline fastening mechanism 3 to increase the pressure of the inner pipe in the slip inner pipe 104 and keep stable, the pressure reducing ring mechanism 2 and the adjusting mechanism 4 can reduce the transverse friction force when the inner pipe rotates, the limiting bottom ring mechanism 5 is convenient to adjust and install, so that the petroleum pipe head is more convenient to use, the pipeline fastening mechanism 3 comprises an avoiding circular groove 303, the avoiding circular groove 303 is arranged inside the top end of the slip inner pipe 104, adjusting springs 302 are arranged on four sides inside the avoiding circular groove 303, a limiting ring plate 301 is arranged at the inner end of each adjusting spring 302, gaps between adjacent limiting ring plates 301 are larger than zero, the two sides of each limiting ring plate 301 are suspended, the limiting ring plates 301 are conveniently extruded and fixed on the outer side of the inner pipe under the contraction of the adjusting springs 302, the stability of the inner pipe during installation is improved, the adjusting mechanism 4 comprises an adjusting inner slotted hole 401, the adjusting inner slotted holes 401 are annularly distributed and arranged inside the pressure reducing lantern ring 201, an adjusting beam column 402 is embedded and connected inside the adjusting inner slotted hole 401, a rubber column is connected between the inner end of the adjusting beam column 402 and the inner wall of the adjusting inner slotted hole 401, a limiting plate 203 is connected at the outer end of the adjusting beam column 402, and the adjusting beam column 402 can move inside the adjusting inner slotted hole 401 through the pulling of the rubber column, thereby adjusting the positions of the rotating ball 202 and the stopper plate 203.

The working principle is as follows: when the slip type petroleum pipe casing head is used, firstly, a user can adjust the limit bottom ring 502 to a proper position through the limit upright column 501, then the pipe head base 103 and the pipe head bottom pipe 102 are installed and fixed, then the user can sleeve the slip inner pipe 104 outside the inner pipe, then the sealing rubber ring 105 is clamped inside the top end of the pipe head bottom pipe 102, the limit ring plate 301 in the avoidance circular groove 303 is abutted against the outer part of the inner pipe to be fixed according to the compression of the adjusting spring 302, then the user can insert the slip inner pipe 104 into the pipe head bottom pipe 102 to be fixed, then the pipe head top pipe 101 is pressed on the tops of the sealing rubber ring 105 and the slip inner pipe 104 to be fixed with the pipe head bottom pipe 102, then the user can fix the pressure reducing lantern ring 201 inside the embedding circular groove 204, when the rotating ball 202 is contacted with the inner pipe, the adjusting beam column 402 can move to a proper position along the inner wall of the adjusting inner slotted hole 401, when the inner pipe rotates, the rotating ball 202 rotates along the inner wall of the limiting plate 203 to reduce the transverse friction force when the inner pipe rotates, so that a series of work is completed.

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 various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a slip formula petroleum pipe casing head, includes pipe box tube head main part (1), its characterized in that: pipe sleeve pipe head main part (1) is including sealing rubber ring (105), and both sides outside is connected with pipe head push pipe (101) and pipe head bottom tube (102) respectively about sealing rubber ring (105), and pipe head bottom tube (102) bottom externally mounted has pipe head base (103), and pipe head base (103) bottom is connected with spacing bottom ring mechanism (5), gomphosis and be connected with slips inner tube (104) between sealing rubber ring (105) inboard pipe head push pipe (101) and pipe head bottom tube (102), inside decompression ring mechanism (2) that are equipped with in pipe head push pipe (101) top, and decompression ring mechanism (2) inside adjustment mechanism (4) that are equipped with, inside pipeline fastening device (3) that are equipped with in slips inner tube (104) top, and pipe head (101) and pipe head bottom tube (102) side are equipped with liquid feeding pipeline (106).

2. The slip-type petroleum pipe casing head as claimed in claim 1, wherein: decompression ring mechanism (2) are including gomphosis circular slot (204), and inside gomphosis circular slot (204) were seted up in tube head push pipe (101) top, and the inside gomphosis of gomphosis circular slot (204) is installed and is decompressed lantern ring (201), is annular distribution on decompressing lantern ring (201) inner wall and installs spacing plate (203), and spacing plate (203) inside is inlayed and is had rotation ball (202).

3. The slip-type petroleum pipe casing head as claimed in claim 1, wherein: the pipeline fastening mechanism (3) comprises an avoiding circular groove (303), the avoiding circular groove (303) is arranged inside the top end of the slip inner pipe (104), adjusting springs (302) are arranged on four sides inside the avoiding circular groove (303), limiting ring plates (301) are arranged at the inner ends of the adjusting springs (302), and gaps between the adjacent limiting ring plates (301) are larger than zero.

4. The slip-type petroleum pipe casing head as set forth in claim 3, wherein: the adjusting mechanism (4) comprises an adjusting inner slotted hole (401), the adjusting inner slotted hole (401) is annularly distributed inside the pressure reducing lantern ring (201), an adjusting beam column (402) is embedded inside the adjusting inner slotted hole (401) and connected with the adjusting beam column (402), a rubber column is connected between the inner end of the adjusting beam column (402) and the inner wall of the adjusting inner slotted hole (401), and the outer end of the adjusting beam column (402) is connected with a limiting plate block (203).

5. The slip-type petroleum pipe casing head as claimed in claim 1, wherein: spacing bottom ring mechanism (5) are including spacing bottom ring (502), and spacing stand (501) are installed to the outside annular distribution in spacing bottom ring (502) top, and spacing stand (501) through connection has tube head base (103).