CN208686343U - A kind of production wellhead polish rod seal packing kit - Google Patents
A kind of production wellhead polish rod seal packing kit Download PDFInfo
- Publication number
- CN208686343U CN208686343U CN201821142005.8U CN201821142005U CN208686343U CN 208686343 U CN208686343 U CN 208686343U CN 201821142005 U CN201821142005 U CN 201821142005U CN 208686343 U CN208686343 U CN 208686343U
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- China
- Prior art keywords
- packing
- packing box
- pressing cap
- chamber
- production wellhead
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Abstract
The utility model discloses a kind of production wellhead polish rod seal packing kits, the packing box includes polished rod, upper packing box and lower packing box are equipped on polished rod, it is provided with upper pressing cap at the top of the upper packing box, the upper conical seal chamber for accommodating upper packing is enclosed between the upper packing box and upper pressing cap；The lower pressing cap of hollow tube-shape is provided between the upper packing box and lower packing box, the lower pressing cap is divided into upper chamber and lower chambers by being disposed therein the partition in portion, it is enclosed the storage chamber for containing lubricant between the upper packing box and upper chamber, the inferior pyramidal seal chamber for accommodating lower packing is enclosed between the lower chambers and lower packing box.Utility model is sealed using upper packing box and lower packing box double-packing, and the storage chamber of lubricant is provided among two packings, sealing of the packing to polished rod is strengthened, while the lubricant in storage chamber can be lubricated to polished rod and the service life of anti-corrosion raising polished rod and packing.
Description
Technical field
The utility model relates to the technical fields of packing box, and in particular to a kind of production wellhead polish rod seal packing kit.
Background technique
In pumping unit production process, polished rod connects the oil pumping outside sucker rod and well head inside well head by well head
Machine is needed there are producing pressure differential between well head inside and external environment using between packing box and packing_seal well head and polished rod
Annular space, prevent petroleum race emit.In oil field when production operation, well head is easiest to problem appear to is that packing box oil leak, especially
It is the oil well that well head pressure is relatively high or interval is fuel-displaced.The wellhead sealing of sucker rod pumping system is to apply by packing box to packing
Add external force, so that packing is deformed and wrap up polished rod, to play the role of sealing.As pumping unit drives polished rod to do up and down reciprocatingly
Movement, polished rod rubs repeatedly with sealed packing, packing can be made to wear and influence sealing effect, this just needs employee to tighten repeatedly
Packing box increases the workload of employee.After tightening to a certain extent, packing can deform and effectively cause seal failure, this is just
Need to shut down replacement packing.
However, traditional packing box needs first to stop well before replacing packing, well head gathering line valve is closed, well head pressure is shed
Power, this not only will increase workload also and will affect the normal production of oil well, and a large amount of races for even resulting in crude oil emit, and petroleum is caused to provide
The waste in source and problem of environmental pollution.For the fuel-displaced oil well of interval, polished rod can be in the well head not fuel-displaced period in default of original
The lubrication of oil and increase the friction between packing, cause polished rod seriously to generate heat, packing abrasion aggravation increases the negative of pumping unit
Lotus.Traditional packing box need to use two pipe wrench to block pressure cap respectively when replacing packing and be dismantled with packing box base, this
The cooperation for generally requiring at least two employees could be completed, this has also aggravated daily patrol administrative burden.Therefore, how to improve with
Upper problem needs a kind of convenient to use, efficient sealed packing box.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of above-mentioned background technique, provide a kind of sealing effect is good, abrasion is small,
Production wellhead polish rod seal packing kit with long service life.
To achieve the above object, a kind of production wellhead polish rod seal packing kit designed by the utility model, including polished rod,
It is equipped with upper packing box and lower packing box on the polished rod, upper pressing cap, the upper packing are provided at the top of the upper packing box
The upper conical seal chamber for accommodating upper packing is enclosed between box and upper pressing cap；
The lower pressing cap of hollow tube-shape is provided between the upper packing box and lower packing box, the lower pressing cap is existed by setting
Partition in the middle part of it is divided into upper chamber and lower chambers, is enclosed between the upper packing box and upper chamber for containing lubrication
The storage chamber of agent is enclosed the inferior pyramidal seal chamber for accommodating lower packing between the lower chambers and lower packing box.
In above-mentioned technical proposal, the bottom of the lower packing box is provided with the oil well rubber valve being arranged on polished rod, institute
The top for stating oil well rubber valve is fixedly connected with the bottom of lower packing box, the lower part of the oil well rubber valve and production wellhead
It is tightly connected.
In above-mentioned technical proposal, upper press cover is equipped on the polished rod between the upper pressing cap and upper packing.
In above-mentioned technical proposal, lower cover is equipped on the polished rod between the lower pressing cap and lower packing.
In above-mentioned technical proposal, the grease nipple being connected to storage chamber is provided on the side wall of the upper chamber.
In above-mentioned technical proposal, be provided on the upper packing box, lower packing box, upper pressing cap and lower pressing cap with outside it
The handle that wall hingedly can be folded down.
In above-mentioned technical proposal, it is connected through a screw thread between the inner wall of the upper pressing cap and the top exterior walls of upper packing box.
In above-mentioned technical proposal, it is connected through a screw thread between the bottom outer wall of the upper packing box and the inner wall of upper chamber.
In above-mentioned technical proposal, it is connected through a screw thread between the top exterior walls of the lower packing box and the inner wall of lower chambers.
Compared with prior art, the utility model has the advantages that
First, the utility model is sealed using the double-packing of upper packing box and lower packing box, and set among two packings
It is equipped with the storage chamber of lubricant, strengthens sealing of the packing to polished rod, while the lubricant in storage chamber can carry out polished rod
Lubrication and anti-corrosion improve the service life of polished rod and packing.
Second, the utility model replaces columnar packing chamber, the circular cone when fastening packing using the packing chamber of cone
The cavity of shape can apply inside extruding force to packing along tapered surface, so that packing be prevented to be deformed failure.
Third, the utility model is provided with oil well rubber valve below lower packing, oil well rubber valve is in normal work
It is in the open state when making that not to polished rod seal, closing rubber valve when shutting down and replacing packing prevents crude oil leakage in well,
To remove well head pressure release work from, working efficiency is improved.
Fourth, the utility model has disassembly handle, Ke Yifang on upper pressing cap, upper packing box, lower pressing cap, lower packing box
Just employee fastens packing or dismounting and change packing at any time, improves the efficiency of work.
Detailed description of the invention
Fig. 1 is a kind of schematic cross-sectional view of production wellhead polish rod seal packing kit；
In figure: 1- polished rod, 2- upper packing box, 3- lower packing box, 4- upper pressing cap, 5- upper packing, the upper conical seal chamber of 6-, 7-
Lower pressing cap, 7.1- upper chamber, 7.2- lower chambers, 8- partition, 9- storage chamber, 10- lower packing, 11- inferior pyramidal seal chamber, 12- oil
Well rubber valve, 13- upper press cover, 14- lower cover, 15- grease nipple, 16- handle.
Specific embodiment
The performance of the utility model is described in detail below with reference to case study on implementation, but they are not constituted to originally practical new
The restriction of type, it is only for example.Simultaneously by illustrating the utility model the advantages of, will become clearer and be readily appreciated that.
The production wellhead polish rod seal packing kit of the utility model as shown in Figure 1, including polished rod 1 are equipped on polished rod 1
Packing box 2 and lower packing box 3, the top of upper packing box 2 are provided with upper pressing cap 4, enclose shape between upper packing box 2 and upper pressing cap 4
At the upper conical seal chamber 6 for accommodating upper packing 5, pass through spiral shell between the inner wall of upper pressing cap 4 and the top exterior walls of upper packing box 2
Line connection.The lower pressing cap 7 of hollow tube-shape is provided between upper packing box 2 and lower packing box 3, lower pressing cap 7 is by being disposed therein
The partition 8 in portion is divided into upper chamber 7.1 and lower chambers 7.2, is enclosed between upper packing box 2 and upper chamber 7.1 for containing
The storage chamber 9 of lubricant is connected through a screw thread between the bottom outer wall of upper packing box 2 and the inner wall of upper chamber 7.1.Upper chamber
The grease nipple 15 being connected to storage chamber 9 is provided on 7.1 side wall.It is enclosed and is used between lower chambers 7.2 and lower packing box 3
Accommodate the inferior pyramidal seal chamber 11 of lower packing 10.Pass through screw thread between the top exterior walls of lower packing box 3 and the inner wall of lower chambers 7.2
Connection.In this way, sealing using the double-packing of upper packing box 2 and lower packing box 3, and lubricant is provided among two packings
Storage chamber 9 strengthens sealing of the packing to polished rod 1, while the lubricant in storage chamber 9 can be lubricated and prevent to polished rod 1
Corruption improves the service life of polished rod and packing.In addition, using the upper conical seal chamber 6 of cone and the disk of inferior pyramidal seal chamber 11
Root chamber replaces traditional columnar packing chamber, when fasten packing conical cavity can along tapered surface to packing apply to
Interior extruding force, so that packing be prevented to be deformed failure.
In above-mentioned technical proposal, the bottom of lower packing box 3 is provided with the oil well rubber valve 12 being arranged on polished rod 1, oil
The top of well rubber valve 12 is fixedly connected with the bottom of lower packing box 3, and the lower part of oil well rubber valve 12 and production wellhead are logical
Cross the connection of threeway thread seal.In this way, being provided with oil well rubber valve below lower packing, oil well rubber valve is in normal work
It is in the open state when making that not to polished rod seal, closing rubber valve when shutting down and replacing packing prevents crude oil leakage in well,
To remove well head pressure release work from, working efficiency is improved.Upper press cover is equipped on polished rod 1 between upper pressing cap 4 and upper packing 5
13.Lower cover 14 is equipped on polished rod 1 between lower pressing cap 7 and lower packing 10.Upper packing box 2, lower packing box 3, upper pressing cap 4 with
And the outer wall two sides of lower pressing cap 7 are provided with handle 16, the handle 16 accordingly arranged and packing box 2, lower packing box 3, upper pressing cap 4
And the outer wall of lower pressing cap 7 is hinged, and can be folded down, can facilitate in daily production maintenance in this way operator at any time on
Tight packing and packing box is dismantled when replacing packing, improves the efficiency of work, and each handle can fold downwards, make it
Space hold is reduced when unused.In addition, between the inner wall of the upper pressing cap of the utility model and the top exterior walls of upper packing box,
It is adopted between the bottom outer wall of upper packing box and the inner wall of upper chamber, between the top exterior walls of lower packing box and the inner wall of lower chambers
It is threadedly coupled, can extend maintenance with dismounting and change or cleaning and replace packing operation all in accordance with actual conditions
Period reduces the amount of labour and labor intensity of operator.
The utility model increases sealing effect using upper and lower two packing boxs, is made by the change of packing box cavity geometry
Force-bearing situation of the packing in sealing is more reasonable, in conjunction with the lubrication of the lubricant in storage chamber, reduces the invalid mill of packing
Damage, extends the service life of packing, and disassembly when employee being facilitated to replace packing extends the replacement cycle of packing, reduces crude oil
Race emits, and mitigates employee work burden.
It is other unspecified to belong to the prior art.
Claims (9)
1. a kind of production wellhead polish rod seal packing kit, including polished rod (1), it is characterised in that: be equipped on the polished rod (1)
Packing box (2) and lower packing box (3) are provided with upper pressing cap (4) at the top of the upper packing box (2), the upper packing box (2) with
The upper conical seal chamber (6) for accommodating upper packing (5) is enclosed between upper pressing cap (4)；
The lower pressing cap (7) of hollow tube-shape is provided between the upper packing box (2) and lower packing box (3), the lower pressing cap (7) is logical
The partition (8) for crossing the portion of being disposed therein is divided into upper chamber (7.1) and lower chambers (7.2), the upper packing box (2) and upper chamber
(7.1) it is enclosed the storage chamber (9) for containing lubricant between, is enclosed between the lower chambers (7.2) and lower packing box (3)
Close the inferior pyramidal seal chamber (11) formed for accommodating lower packing (10).
2. production wellhead polish rod seal packing kit according to claim 1, it is characterised in that: the lower packing box (3)
Bottom is provided with the oil well rubber valve (12) being arranged on polished rod (1), the top of the oil well rubber valve (12) and lower wall
The bottom of root box (3) is fixedly connected, and the lower part of the oil well rubber valve (12) and production wellhead are tightly connected.
3. production wellhead polish rod seal packing kit according to claim 2, it is characterised in that: the upper pressing cap (4) with it is upper
Upper press cover (13) are equipped on polished rod (1) between packing (5).
4. production wellhead polish rod seal packing kit according to claim 3, it is characterised in that: the lower pressing cap (7) is under
Lower cover (14) are equipped on polished rod (1) between packing (10).
5. production wellhead polish rod seal packing kit according to claim 1 or 2 or 3 or 4, it is characterised in that: the epicoele
The grease nipple (15) being connected to storage chamber (9) is provided on the side wall of room (7.1).
6. production wellhead polish rod seal packing kit according to claim 5, it is characterised in that: the upper packing box (2), under
The handle (16) that hingedly can be folded down with its outer wall is provided on packing box (3), upper pressing cap (4) and lower pressing cap (7).
7. production wellhead polish rod seal packing kit according to claim 6, it is characterised in that: the upper pressing cap (4) it is interior
It is connected through a screw thread between wall and the top exterior walls of upper packing box (2).
8. production wellhead polish rod seal packing kit according to claim 7, it is characterised in that: the upper packing box (2)
It is connected through a screw thread between bottom outer wall and the inner wall of upper chamber (7.1).
9. production wellhead polish rod seal packing kit according to claim 8, it is characterised in that: the lower packing box (3)
It is connected through a screw thread between top exterior walls and the inner wall of lower chambers (7.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821142005.8U CN208686343U (en) | 2018-07-18 | 2018-07-18 | A kind of production wellhead polish rod seal packing kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821142005.8U CN208686343U (en) | 2018-07-18 | 2018-07-18 | A kind of production wellhead polish rod seal packing kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686343U true CN208686343U (en) | 2019-04-02 |
Family
ID=65881120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821142005.8U Expired - Fee Related CN208686343U (en) | 2018-07-18 | 2018-07-18 | A kind of production wellhead polish rod seal packing kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047801A (en) * | 2019-12-26 | 2021-06-29 | 中国石油天然气股份有限公司 | Sealing method of wellhead packing box and wellhead packing box device |
-
2018
- 2018-07-18 CN CN201821142005.8U patent/CN208686343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047801A (en) * | 2019-12-26 | 2021-06-29 | 中国石油天然气股份有限公司 | Sealing method of wellhead packing box and wellhead packing box device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 Termination date: 20210718 |