CN210714563U - Oil recovery well wellhead packing box - Google Patents
Oil recovery well wellhead packing box Download PDFInfo
- Publication number
- CN210714563U CN210714563U CN201921135908.8U CN201921135908U CN210714563U CN 210714563 U CN210714563 U CN 210714563U CN 201921135908 U CN201921135908 U CN 201921135908U CN 210714563 U CN210714563 U CN 210714563U
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- packing
- gland
- chamber
- wellhead
- room
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- 238000012856 packing Methods 0.000 title claims abstract description 238
- 238000011084 recovery Methods 0.000 title claims description 9
- 210000004907 gland Anatomy 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 23
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 22
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 22
- 241001330002 Bambuseae Species 0.000 claims description 22
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 22
- 239000011425 bamboo Substances 0.000 claims description 22
- 239000003921 oil Substances 0.000 abstract description 25
- 239000010779 crude oil Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a packing box of a wellhead of an oil production well, which belongs to the technical field of matched tools of the wellhead of the oil production well, the utility model provides a packing box of a wellhead of an oil production well, which comprises a packing, a packing chamber, a gland and a transmission rod, wherein the packing chamber is a cavity with an opening at the top, the packing is arranged in the packing chamber, the gland cover is arranged at the top of the packing chamber, the transmission rod sequentially passes through the gland, the packing and the packing chamber, the transmission rod is connected with the packing in a sliding way, and the distance from the packing to the packing chamber is gradually increased from the bottom to; a plug cylinder is arranged between the packing and the packing chamber, one end of the plug cylinder is located at the bottom side of the packing chamber, the other end of the plug cylinder is located at the bottom of the gland, the thickness of the plug cylinder is gradually increased from the bottom of the packing chamber to the bottom side of the gland, and the plug cylinder is connected with the packing, the packing chamber and the gland. The utility model discloses stop the crude oil seepage, reduce the potential safety hazard, protect soil environment. Saving material cost. The danger that the crude oil is leaked and the fire disaster is caused by the open fire is reduced, and the safety of personnel and equipment is ensured.
Description
Technical Field
The utility model belongs to the technical field of the supporting instrument of oil well oil recovery well head, concretely relates to oil recovery well head packing box.
Background
In the field of oil production, the wellhead of an oil production well is provided with a sealing packing box device.
The sealing packing box is internally provided with a conical packing, the center of the conical packing is provided with a hole, and a polish rod passes through the hole and does reciprocating linear motion up and down.
In the process of implementing the embodiments of the present invention, the inventor finds that at least the following defects exist in the background art:
due to the up-and-down reciprocating linear motion of the polish rod, the abrasion of the central hole of the conical disc root is increased, crude oil leaks from the central hole, crude oil overflows, and the risk of polluting the land is caused; leaked crude oil flows to a heating furnace and meets open fire, so that fire is easy to occur, and personnel and equipment are damaged; frequent replacement of the conical disc root increases the labor frequency of the staff and also increases the cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a packing box at the wellhead of an oil production well, which aims to solve the problems that the abrasion of a central hole of a conical packing becomes large due to the up-and-down reciprocating linear motion of a polish rod, crude oil leaks from the central hole, the crude oil overflows and pollutes the land risk; leaked crude oil flows to a heating furnace and meets open fire, so that fire is easy to occur, and personnel and equipment are damaged; frequent replacement of the conical disc root increases the labor frequency of workers and increases the cost.
In order to achieve the above object, the utility model adopts the following technical scheme:
a wellhead packing box of an oil production well comprises a packing, a packing chamber, a pressing cover and a transmission rod, wherein the packing chamber is a cavity with an opening at the top, the packing is arranged in the packing chamber, the pressing cover covers the top of the packing chamber, the transmission rod sequentially penetrates through the pressing cover, the packing and the packing chamber, and the transmission rod is connected with the packing in a sliding manner;
the distance from the side wall of the packing to the inner wall of the packing chamber is gradually increased from the bottom to the top of the packing chamber; a plug cylinder is arranged between the packing and the packing chamber, one end of the plug cylinder is located at the bottom side of the packing chamber, the other end of the plug cylinder is located at the bottom of the gland, the thickness of the plug cylinder is gradually increased from the bottom side of the packing chamber to the bottom of the gland, and the plug cylinder is connected with the packing, the packing chamber and the gland.
The plug cylinder is composed of two pressing sheets, and the upper end surfaces and the lower end surfaces of the pressing sheets are semicircular.
And a support sheet is fixed at the top of the plug cylinder, and a through hole for the transmission rod to pass through is formed in the middle of the support sheet.
The gland is connected to the packing chamber in an adjustable mode along the axial direction of the transmission rod in the packing chamber.
The gland is in threaded connection with the packing chamber; or
The gland is connected to the top of the packing chamber through a long bolt.
The packing is round platform form, and the packing room is cylindric, stopper section of thick bamboo is interior to have round platform form inner chamber, stopper section of thick bamboo is outer cylindric.
The middle part of the gland is provided with a first through hole, and the diameter of the first through hole is larger than that of the transmission rod;
the packing room bottom center has the second through-hole, and the diameter of second through-hole is greater than the transfer line diameter.
The plug barrel is barrel-shaped, and the barrel-shaped plug barrel is reversely buckled on the packing.
The barrel lower part of the barrel-shaped plug barrel is provided with a third through hole for the transmission rod to pass through.
The beneficial effects of the utility model are that, the utility model discloses packing sets up a space that gradually changes to between the packing room, sets up a stopper section of thick bamboo in this space, and the packing room is through this stopper section of thick bamboo and packing zonulae occludens, when toper root centre bore wearing and tearing grow, by stopper section of thick bamboo stopper compensate this centre bore that wearing and tearing grow between packing and packing room, the utility model discloses stop the crude oil seepage, reduce the potential safety hazard, protect soil environment. The service life of the conical packing is prolonged, the labor frequency of workers is reduced, and the material cost and the expense are saved. The danger that the crude oil is leaked and the fire disaster is caused by the open fire is reduced, and the safety of personnel and equipment is ensured.
Drawings
Fig. 1 is the utility model relates to a whole structure chart of an embodiment of oil recovery well head packing box.
Fig. 2 is an explosion diagram of an embodiment of the packing box of the wellhead of the oil production well.
Fig. 3 is the utility model relates to a three-dimensional schematic diagram of preforming in oil recovery well head packing box.
The reference numbers in the figures are: 1. a gland; 2. a first through hole; 3. tabletting; 4. a packing chamber; 5. a second through hole; 6. packing; 7. and a transmission rod.
Detailed Description
It should be noted that, in the embodiments of the present invention, the terms referred to are:
the stopper section of thick bamboo, it mainly sets up between packing 6 and packing room 4, and its effect is with the thickness of self, through extrusion force with packing 6 extrusion deformation, makes the whole diameter of packing 6 reduce, and then makes the central through-hole that is used for of packing 6 and transfer line 7 sliding connection reduce, reaches the problem that the continuous friction of compensation transfer line 7 and packing 6 leads to the leakproofness variation between packing 6 and the transfer line 7.
And a pressing sheet 3 which is a part of the plug cylinder, and a plurality of pressing sheets 3 can constitute the plug cylinder.
Example 1
Please refer to fig. 1, which shows an overall schematic diagram of a wellhead packing box of a producing well according to an embodiment of the present invention, the wellhead packing box of the producing well includes a packing 6, a packing chamber 4, a gland 1 and a transmission rod 7, the packing chamber 4 is a cavity with an open top, the packing 6 is disposed in the packing chamber 4, the gland 1 covers the top of the packing chamber 4, the transmission rod 7 sequentially passes through the gland 1, the packing 6 and the packing chamber 4, and the transmission rod 7 is slidably connected with the packing 6;
the distance from the side wall of the packing 6 to the inner wall of the packing chamber 4 gradually increases from the bottom to the top of the packing chamber 4; be equipped with a stopper section of thick bamboo between packing 6 and the packing room 4, stopper section of thick bamboo one end is located the 4 bottom sides of packing room, and the other end is located gland 1 bottom, from packing room bottom side to gland bottom, the thickness of a stopper section of thick bamboo increases gradually, a stopper section of thick bamboo is connected with packing 6, packing room 4 and gland 1.
In the above embodiment, in the packing box of the prior art, the packing 6 is directly assembled in the packing chamber 4, the packing 6 is sealed in the packing chamber 4 by the pressing cover 1, and after long-term use, the packing 6 and the transmission rod 7 are continuously worn, which results in oil leakage at the sealing fit between the transmission rod 7 and the packing 6, therefore, in the present invention, a gap is creatively arranged between the packing chamber 4 and the packing 6, the gap is on the same horizontal plane from the bottom to the top of the packing chamber 4, the distance from the packing 6 to the packing chamber 4 is gradually increased, since the gap is arranged between the packing chamber 4 and the packing 6, a plug cylinder can be arranged in the gap, the first function of the plug cylinder is to fill the gap, so that the packing 6 is firmly fixed in the packing chamber 4, and the other function is to adopt a plug cylinder thicker than the gap, and the plug cylinder acts between the packing 6 and the packing chamber 4, the packing 6 is uniformly compressed by the plug barrel, so that the whole diameter of the packing 6 is reduced, the diameter of a central through hole which is used for being matched with the transmission rod 7 in the packing 6 in a sealing mode is reduced, the packing 6 and the transmission rod 7 are sealed tightly again, in the principle, the whole side face of the packing 6 is compressed by the plug barrel, the diameter of the packing 6 is extended along with the compression, and the side length of the central hole in the packing 6 is reduced. In this embodiment, the plug cylinder may be made of a hard material or an elastic material, a point of application of the pressing force of the plug cylinder to the packing 6 is mainly on the gland 1, and the pressing force of the gland 1 is transmitted to the side of the packing 6.
In this embodiment, from the bottom to the top of packing room 4, the distance of packing 6 to packing room 4 increases gradually, and the clearance that forms between packing 6 and the packing room 4, its cross section can be triangle-shaped, also can be gradual free curved surface form, parabola shape and the arbitrary shape that uses the stopper section of thick bamboo that technical personnel in the field can adopt can be with packing 6 and packing room 4 even compression.
Example 2
Further, please refer to fig. 3, which shows another embodiment of the packing box of the wellhead of the oil production well of the present invention, the plug cylinder is composed of two pressing sheets 3, and the upper end surface and the lower end surface of the pressing sheet 3 are semicircular.
In the above embodiment, during on-site construction, in order to facilitate the assembly of the plug barrel, the plug barrel is disassembled from the middle, and is changed into two pressing sheets 3, the two pressing sheets 3 form an integral plug barrel, only the pressing sheets 3 are required to be installed from two sides of the packing 6 during installation, the pressing sheets 3 are in the shape as shown in fig. 3, the upper end of each pressing sheet 3 is semicircular, the lower end of each pressing sheet 3 is semicircular, the thickness of each pressing sheet 3 is the thinnest bottom, the top of each pressing sheet is thicker than the bottom of each pressing sheet, and the thickness from the bottom to the top.
Example 3
Further, please refer to fig. 1, another embodiment of the present invention relates to a packing box for a wellhead of an oil production well, wherein a support sheet is fixed on the top of the plug tube, and a through hole for passing the transmission rod is formed in the middle of the support sheet.
In the above embodiment, a support sheet is additionally arranged at the top of the plug cylinder, the support sheet is attached to the gland 1, the support sheet can uniformly transmit the extrusion force of the gland 1 to the plug cylinder, and a through hole is formed in the middle of the support sheet and can be used for the transmission rod 7 to pass through.
Example 4
Further, please refer to fig. 1, the utility model relates to another embodiment of a wellhead packing box of an oil production well, the gland 1 is connected on the packing chamber 4 along the axial direction of the transmission rod in the packing chamber 4 with adjustable.
In the above embodiment, the gland 1 is connected to the packing chamber 4 to play a role of positioning the packing 6, and the plug barrel acts between the packing 6 and the packing chamber 4 under the action force of the gland 1, in this embodiment, the gland 1 is designed to be adjustably connected to the packing chamber 4 along the axial direction of the transmission rod in the packing chamber 4, so that the position of the gland 1 on the packing chamber 4 can be adjusted, thereby adjusting the acting force between the gland 1 and the plug barrel, enabling the plug barrel to adjust the acting force between the packing 6 and the packing chamber 4, further adjusting the through hole in the packing 6 for the sealing sliding connection of the transmission rod 7, in practical use, when the gap between the transmission rod 7 and the packing 6 is enlarged at intervals, the gland 1 can be adjusted, the gap between the transmission rod 7 and the packing 6 can be adjusted, and the gap between the transmission rod 7 and the packing 6 can be adjusted without continuously replacing the plug cylinder.
Example 5
Furthermore, in another embodiment of the packing box of the wellhead of the oil production well, the gland 1 is in threaded connection with the packing chamber 4; or
The gland 1 is connected to the top of the packing chamber 4 through a long bolt.
In the above embodiment, the gland 1 is connected with the packing chamber 4 by screw, the gland 1 can be turned by a knob, the relative position of the gland 1 and the packing chamber 4 is adjusted, then the plug cylinder is adjusted to act on the pressure between the packing 6 and the packing chamber 4, and the deformation amount of the packing 6 is adjusted.
In this embodiment, can constantly adjust gland 1, make the utility model relates to an oil recovery well head packing box can use for a long time, saves manufacturing cost.
Example 6
Further, please refer to fig. 1, the utility model relates to a another embodiment of the packing box of the wellhead of the oil production well, packing 6 is round platform form, and packing room 4 is cylindric, it has round platform form inner chamber to fill in a section of thick bamboo, it is cylindric to fill in a section of thick bamboo outward.
In the above-mentioned embodiment, set packing 6 to the round platform form, packing room 4 is cylindric among the prior art, sets up the cylindric stopper section of thick bamboo that has round platform form inner chamber between packing 6 and packing room 4, can realize filling in a section of thick bamboo and adjusting packing 6's shape under the effect of the extrusion force of gland 1, makes packing 6 and transfer line 7 sealed cooperation.
Example 7
Further, referring to fig. 1, in another embodiment of the packing box at the wellhead of the oil production well of the present invention, a first through hole 2 is formed in the middle of the gland 1, and the diameter of the first through hole 2 is larger than that of the transmission rod 7;
the packing chamber 4 has a second through hole 5 in the center of the bottom, and the diameter of the second through hole 5 is larger than that of the transmission rod 7.
In the above embodiment, the first through hole 2 and the second through hole 5 are through holes for passing the transmission rod 7, and have a diameter slightly larger than that of the transmission rod 7.
Example 8
Further, the utility model relates to a producing well wellhead packing box's another embodiment, stopper bobbin base edge is equipped with the font opening of falling V.
In the above embodiment, the inverted V-shaped opening at the bottom edge of the plug cylinder can increase the elasticity of the plug cylinder.
Example 9
Further, please refer to fig. 1, the present invention provides another embodiment of a packing box at a wellhead of an oil production well, wherein the plug barrel is barrel-shaped, and the barrel-shaped plug barrel is reversely buckled on the packing 6.
In the above embodiment, the barrel-shaped plug is reversely buckled on the packing 6 to form a compression structure with the packing 6, and the compression structure increases the pressure between the packing 6 and the packing chamber 4 under the pressure of the gland 1, so that the packing 6 deforms to enable the packing 6 to be tightly matched with the transmission rod 7.
Example 10
Further, referring to fig. 1, the present invention provides another embodiment of a wellhead packing box for an oil production well, wherein the barrel of the barrel-shaped plug barrel has a third through hole for passing the transmission rod.
In the above embodiment, the barrel of the barrel-shaped plug barrel is provided with a third through hole for the transmission rod to pass through.
Example 11
Further, please refer to fig. 1, the utility model relates to a another embodiment of the packing box of the wellhead of the oil production well, the thickness of the plug cylinder is gradually increased, the plug cylinder is in close contact with the packing 6, the packing chamber 4 and the gland 1.
In the above embodiment, the plug barrel is in close contact with the packing 6, the packing chamber 4 and the gland 1 so that the plug barrel is uniformly stressed with the packing 6, the packing chamber 4 and the gland 1.
Example 12
Further, the utility model relates to an oil recovery well head packing box's another embodiment, packing room 4 is the round platform form, and packing 6 is the column, fills in a section of thick bamboo and describes for the round platform, fills in a section of thick bamboo center and has a column through-hole.
In the above embodiment, the circular truncated cone-shaped packing chamber 4 and the columnar packing 6 may also form a gap from the bottom of the packing chamber 4 to the top of the packing chamber 4, and the packing 6 is uniformly pressed by the plug cylinder in the gap, so that the packing 6 is lengthened, the diameter of the central through hole of the packing 6 is reduced, and the sealing performance between the packing 6 and the transmission rod 7 is adjusted.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions related to "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. The utility model provides a producing well wellhead packing box, includes packing (6), packing room (4), gland (1) and transfer line (7), packing room (4) are open-top's cavity, and packing (6) are established in packing room (4), and gland (1) lid is at packing room (4) top, and transfer line (7) pass from gland (1), packing (6) and packing room (4) in proper order, transfer line (7) and packing (6) sliding connection, its characterized in that:
the distance from the side wall of the packing (6) to the inner wall of the packing chamber (4) is gradually increased from the bottom to the top of the packing chamber (4); be equipped with a stopper section of thick bamboo between packing (6) and packing room (4), stopper section of thick bamboo one end is located packing room (4) bottom side, and the other end is located gland (1) bottom, from packing room bottom side to gland bottom, the thickness of a stopper section of thick bamboo increases gradually, a stopper section of thick bamboo is connected with packing (6), packing room (4) and gland (1).
2. The packing box of the wellhead of the oil production well is characterized in that the plug cylinder is composed of two pressing sheets (3), and the upper end surface and the lower end surface of each pressing sheet (3) are semicircular.
3. The packing box of the wellhead of the oil production well as the claim 1 is characterized in that a support plate is fixed at the top of the plug cylinder, and the middle part of the support plate is provided with a through hole for the transmission rod to pass through.
4. A producing well wellhead packing box according to claim 1 characterized in that the gland (1) is adjustably connected to the packing chamber (4) in the axial direction of the drive rod in the packing chamber (4).
5. A producing well wellhead packing box according to claim 4 characterized in that the gland (1) is in threaded connection with the packing chamber (4); or
The gland (1) is connected to the top of the packing chamber (4) through a long bolt.
6. The packing box of the wellhead of the oil production well is characterized in that the packing (6) is in a circular truncated cone shape, the packing chamber (4) is in a cylindrical shape, a circular truncated cone-shaped inner cavity is formed in the plug cylinder, and the plug cylinder is externally in a cylindrical shape.
7. A producing well wellhead packing box according to claim 1, characterized in that the gland (1) has a first through hole (2) in the middle, the diameter of the first through hole (2) being larger than the diameter of the transmission rod (7).
8. A packing box at the wellhead of an oil recovery well according to claim 7, characterized in that the packing chamber (4) has a second through hole (5) in the center of the bottom, the diameter of the second through hole (5) being larger than the diameter of the transmission rod (7).
9. A producing well wellhead packing box according to claim 1, characterized in that the plug barrel is barrel-shaped, the barrel-shaped plug barrel is turned over on the packing (6).
10. The production well wellhead packing kit of claim 9, wherein the barrel lower of the barrel plug has a third through hole for the transmission rod to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921135908.8U CN210714563U (en) | 2019-07-19 | 2019-07-19 | Oil recovery well wellhead packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921135908.8U CN210714563U (en) | 2019-07-19 | 2019-07-19 | Oil recovery well wellhead packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714563U true CN210714563U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921135908.8U Active CN210714563U (en) | 2019-07-19 | 2019-07-19 | Oil recovery well wellhead packing box |
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| Country | Link |
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| CN (1) | CN210714563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374538A (en) * | 2019-07-19 | 2019-10-25 | 中国石油天然气股份有限公司 | Oil recovery well wellhead packing box |
-
2019
- 2019-07-19 CN CN201921135908.8U patent/CN210714563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374538A (en) * | 2019-07-19 | 2019-10-25 | 中国石油天然气股份有限公司 | Oil recovery well wellhead packing box |
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