CN109441392A - A kind of oil pumping machine well head packing box - Google Patents
A kind of oil pumping machine well head packing box Download PDFInfo
- Publication number
- CN109441392A CN109441392A CN201811522992.9A CN201811522992A CN109441392A CN 109441392 A CN109441392 A CN 109441392A CN 201811522992 A CN201811522992 A CN 201811522992A CN 109441392 A CN109441392 A CN 109441392A
- Authority
- CN
- China
- Prior art keywords
- polished rod
- rubber
- oil
- gland
- strike
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012856 packing Methods 0.000 title claims abstract description 81
- 238000005086 pumping Methods 0.000 title claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 229920000742 Cotton Polymers 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 48
- 239000010687 lubricating oil Substances 0.000 description 18
- 239000010779 crude oil Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 238000009837 dry grinding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
Abstract
The present invention relates to field mining equipment technical fields, and disclose a kind of oil pumping machine well head packing box, including box body, the top of the box cavity is equipped with pressing sleeve, the top of the box body is equipped with gland, and the top of the gland is equipped with cover board, and the top of the cover board is equipped with polished rod, the bottom end of the polished rod sequentially passes through cover board, gland, pressing sleeve and box body, and the inside of the gland offers storage chamber.By the setting for opening up bellmouth inside rubber of strike-ofing, make the to strike-off top of rubber inner wall is bonded with polished rod surface, and then when moving downward polished rod, rubber of strike-ofing can scrape off the gravel on polished rod surface, gravel is avoided to enter between polished rod with polished rod motion, make to be formed between sealed packing and polished rod and be sanded, the problem of causing the sealed packing rate of wear to be accelerated, extend the service life of sealed packing, reduce the frequency of replacement sealed packing, it shortens and stops the well time, improve oil recovery efficiency, production cost reduces.
Description
Technical field
The present invention relates to field mining equipment technical field, specially a kind of oil pumping machine well head packing box.
Background technique
Packing box is the device being sealed in oil pumping machine well head to polished rod, is the important composition portion for preventing petroleum excessive
Point, it is mainly made of pressure cap, pressing sleeve, box body, bushing and packing etc., is set in the outside of oil-extractor polish-rod, well is fixed in lower end
On mouth device, in oil pumping operation, oil-extractor polish-rod moves repeatedly up and down with respect to packing box, its working principle is that will by pressure cap
Pressing sleeve is pressed into box body, and pressing sleeve squeezes packing, and packing is made axially and radially to deform, so make packing be close to polished rod and
Box body outer wall realizes sealing, but existing packing box still has following problems in use:
1, packing box is all installed outdoors, and dust storm is attached to the surface of polished rod, enters between packing and polished rod with polished rod, is made
It is formed and is sanded between polished rod and packing, accelerate the rate of wear of packing, gap is quickly formed between packing and polished rod and runs oil, disk
Root service life is very short, needs that frequently pumping unit stops and replaces to packing, oil well is made to stop production in short term, increases operation time
It counts and stops the well time, reduce oil recovery efficiency, the production cost increases.
2, it takes out and is mounted in packing box after impregnating packing in lubricating oil, to reduce rubbing between packing and polished rod
Power is wiped, still, the lubricating oil in packing can gradually decrease during polished rod moves up and down, and make to be formed between packing and polished rod
Dry grinding causes the packing rate of wear to be accelerated, shortens the service life of packing.
In view of the above-mentioned problems, the present invention provides a kind of oil pumping machine well head packing boxs.
Summary of the invention
The present invention provides a kind of oil pumping machine well head packing boxs, which can be by polished rod
The gravel of surface attachment removes, and avoids gravel from entering between sealed packing and polished rod, makes to form sand between polished rod and sealed packing
The problem of mill, while can be sealed packing make-up oil, it avoids the lubrication oil consumption in sealed packing complete, makes sealed packing
The problem of dry grinding is formed between polished rod.
The invention provides the following technical scheme: a kind of oil pumping machine well head packing box, including box body, the box cavity
Top is equipped with pressing sleeve, and the top of the box body is equipped with gland, and the top of the gland is equipped with cover board, and the top of the cover board is equipped with
Polished rod, the bottom end of the polished rod sequentially pass through cover board, gland, pressing sleeve and box body, and the inside of the gland offers storage chamber, institute
The external activity for stating polished rod is socketed with oil removal pipe, and the bottom end of the oil removal pipe and the bottom surface of storage chamber connect, outside the polished rod
Portion's movable sleeve is connected to rubber bag tank, and the top of the rubber bag tank is equipped with rubber of strike-ofing, and the left and right sides of the gland are equipped with peace
Handle is filled, the top of the inboard wall of cartridge is equipped with seal groove, and the inside of the seal groove is equipped with O-ring seal, the polished rod
It is externally wrapped with the sealed packing positioned at tray interior, the bottom surface of the box cavity is equipped with liner.
Further, the cover board is fixedly connected by bolt with gland.
Further, oil storage tank is formed between the inner wall of the storage chamber and the outer wall of oil removal pipe.
Further, the bottom surface of the storage chamber be equipped be located at oil removal pipe inside annular cotton block, it is described annular cotton block with
Polished rod pivot bush unit.
Further, the inner diameter values of the oil removal pipe are greater than the outer diameter value of rubber bag tank.
Further, the shape of the rubber of strike-ofing is taper, and the diameter value of the rubber bottom surface of strike-ofing is greater than oil removal pipe
Outer diameter value.
Further, the inside of the rubber of strike-ofing offers bellmouth, and the diameter value at the top of the bellmouth is less than light
The diameter value of the diameter value of bar, the bellmouth bottom is identical as the inner diameter values of rubber bag tank.
The present invention have it is following the utility model has the advantages that
1, by opening up the setting of bellmouth inside rubber of strike-ofing, the top and polished rod surface for the rubber inner wall that makes to strike-off are pasted
Close, and then when moving downward polished rod, rubber of strike-ofing can scrape off the gravel on polished rod surface, avoid gravel with polished rod motion into
Enter between polished rod, make between sealed packing and polished rod formed be sanded, the sealed packing rate of wear accelerate the problem of, extend close
The service life of closing disk root reduces the frequency of replacement sealed packing, shortens and stop the well time, improve oil recovery efficiency, produces
Cost reduces.
2, by strike-off rubber be taper setting and rubber bottom surface diameter value of strike-ofing be greater than oil removal pipe outside diameter value setting,
Be slipped to the gravel being stripped off in oil storage tank along the surface for rubber of strike-ofing, so make the lubricating oil in oil storage tank overflow to every
The inside of oil pipe immerses gap of the lubricating oil between polished rod and gland and pressing sleeve in sealed packing, supplements sealed packing
The lubricating oil of middle missing avoids lubricating oil missing in sealed packing from seriously, making to form dry grinding between sealed packing and polished rod, cause
The problem of sealed packing rate of wear is accelerated, extends the service life of sealed packing.
3, by the setting of oil removal pipe, the crude oil for running out of sealed packing abrasion initially enters the inside of oil removal pipe, utilizes
Buoyancy promotion strike-off rubber of the rubber bag tank in crude oil moves up, and the top of the rubber that makes to strike-off will be between polished rod and cover board
Gap seals up, and crude oil is avoided to reveal, while winning enough maintenance time for maintenance personal.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the schematic diagram of internal structure of Fig. 1；
Fig. 3 is the schematic diagram of the section structure in Fig. 1 at A-A；
Fig. 4 is structural schematic diagram when oil is run in sealed packing abrasion；
Fig. 5 is the schematic diagram of internal structure of rubber of strike-ofing in Fig. 2.
In figure: 1- box body, 2- pressing sleeve, 3- gland, 4- cover board, 5- polished rod, 6- storage chamber, 7- oil removal pipe, 8-
Annular cotton block, 9- rubber bag tank, 10- strike-off rubber, 11- mounting knob, 12- seal groove, 13-O type sealing ring, and 14- is close
Closing disk root, 15- liner.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5, a kind of oil pumping machine well head packing box, including box body 1 are please referred to, the top of 1 inner cavity of box body is equipped with
Pressing sleeve 2, the top of the box body 1 are equipped with gland 3, and the top of the gland 3 is equipped with cover board 4, and the top of the cover board 4 is equipped with light
Bar 5, the bottom end of the polished rod 5 sequentially pass through cover board 4, gland 3, pressing sleeve 2 and box body 1, the outside of the polished rod 5 and cover board 4, pressure
Lid 3, pressing sleeve 2 and the equal pivot bush unit of box body 1, the inside of the gland 3 offer storage chamber 6, the external activity set of the polished rod 5
It is connected to oil removal pipe 7, the bottom end of the oil removal pipe 7 is connect with the bottom surface of storage chamber 6, and the external activity of the polished rod 5 is socketed with rubber
The top of capsule 9, the rubber bag tank 9 is equipped with rubber 10 of strike-ofing, and the left and right sides of the gland 3 are equipped with mounting knob 11,
The top of 1 inner wall of box body is equipped with seal groove 12, and the inside of the seal groove 12 is equipped with O-ring seal 13, the polished rod 5
The sealed packing 14 being externally wrapped with inside box body 1, the bottom surface of 1 inner cavity of box body are equipped with liner 15,15 activity of liner
It is socketed in the outside of polished rod 5.
The cover board 4 is fixedly connected by bolt with gland 3, enables people to disassemble on gland 3 and cover board 4, convenient
People clear up the gravel inside storage chamber 6, avoid the too many gravel of 6 accumulated inside of storage chamber, contact gravel with polished rod 5, by light
Bar 5 is worn, and is led to the problem of frictional force increases between polished rod 5 and sealed packing 14, is extended the service life of sealed packing 14.
It is formed with oil storage tank between the inner wall of the storage chamber 6 and the outer wall of oil removal pipe 7, play storage lubricating oil and accommodates sand
The effect of gravel.
The bottom surface of the storage chamber 6 is equipped with the annular cotton block 8 being located inside oil removal pipe 7, the annular cotton block 8 and polished rod 5
Pivot bush unit is filtered overflow into the lubricating oil inside oil removal pipe 7 using the gap inside annular cotton block 8, by lubricating oil
In gravel filter out, avoid the gravel for swimming in lubricant oil surface from entering between polished rod 5 and sealed packing 14 with lubricating oil, make light
The problem of being sanded is formed between bar 5 and sealed packing 14, extends the service life of sealed packing 14.
The inner diameter values of the oil removal pipe 7 be greater than rubber bag tank 9 outer diameter value, make rubber bag tank 9 the inside of oil removal pipe 7 can more than
Lower movement, it is ensured that sealed packing 14 is worn, and after crude oil enters oil removal pipe 7, rubber bag tank 9 can float in crude oil, make rubber
Capsule 9 pushes rubber 10 of strike-ofing to move up, and the gap sealing between polished rod 5 and cover board 4 is lived, crude oil is avoided to reveal, simultaneously
Enough maintenance time is won for maintenance personal.
The shape of the rubber 10 of strike-ofing is taper, and the diameter value of 10 bottom surface of rubber of strike-ofing is greater than the outer of oil removal pipe 7
Diameter value, the gravel that rubber 10 strikes off that makes to be strike-off is slipped in oil storage tank along the surface for rubber 10 of strike-ofing, and then makes oil storage tank
In lubricating oil overflow to the inside of oil removal pipe 7, immerse gap of the lubricating oil between polished rod and gland 3 and pressing sleeve 2 close
In closing disk root 14, the lubricating oil lacked in sealed packing 14 is supplemented, lubricating oil missing in sealed packing 14 is avoided seriously, to make to seal
The problem of forming dry grinding between packing 14 and polished rod 5,14 rate of wear of sealed packing is caused to be accelerated, extends sealed packing 14
Service life.
The inside for strike-ofing rubber 10 offers bellmouth, and the diameter value at the top of the bellmouth is less than the straight of polished rod 5
The diameter value of diameter value, the bellmouth bottom is identical as the inner diameter values of rubber bag tank 9, and the inside for the rubber 10 that makes to strike-off is extensive there are one
Multiple power, the top for 10 inner wall of rubber of strike-ofing is bonded with polished rod 5, it is ensured that the gravel on 5 surface of polished rod is stripped off, while being reduced and being strike-off
The area that 10 inner wall of rubber is contacted with polished rod 5 reduces the frictional force strike-off between rubber 10 and polished rod 5, extends rubber 10 of strike-ofing
Service life, reduce maintenance times, shortening stop the well time, improve oil recovery efficiency, production cost reduce.
When work, polished rod 5 moves upwards under the driving of pumping unit first, makes the exposure of polished rod 5 in air, outdoor sand
Gravel is attached to the surface of polished rod 5 under the promotion of wind, and then polished rod 5 moves downward, and makes the opposite movement of polished rod 5 of rubber 10 of strike-ofing,
The gravel on 5 surface of polished rod is scraped off, gravel is avoided to be moved between 14 and polished rod 5 with polished rod 5, makes sealed packing 14 and polished rod
The problem of being formed and be sanded between 5,14 rate of wear of sealed packing is caused to be accelerated, extends the service life of sealed packing 14, drops
The frequency of low replacement sealed packing 14, shortens and stops the well time, improve oil recovery efficiency, and production cost reduces, and is then scraped
The gravel gone is slipped in oil storage tank on the surface along rubber 10 of strike-ofing, and the lubricating oil in oil storage tank is made to overflow to oil removal pipe 7
Inside, gap between polished rod 5 and gland 3 and polished rod 5 and pressing sleeve 2 flows into after lubricating oil is filtered through annular cotton block 8
The inside of box body 1 and the inside for immersing sealed packing 14 supplement the lubricating oil lacked inside sealed packing 14, avoid sealed packing
Lubricating oil missing is serious in 14, makes to form dry grinding between sealed packing 14 and polished rod 5,14 rate of wear of sealed packing is caused to be accelerated
The problem of, extend the service life of sealed packing 14.
After sealed packing 14 is worn using a period of time, crude oil passes through the gap between sealed packing 14 and polished rod 5
It emerges, and enters the inside of oil removal pipe 7 by the gap between polished rod 5 and pressing sleeve 2 and polished rod 5 and gland 3, mentioned for rubber bag tank 9
A upward buoyancy has been supplied, the promotion of rubber bag tank 9 rubber 10 of strike-ofing is moved up, and then the top for the rubber 10 that makes to strike-off enters
The gap sealing between polished rod 5 and cover board 4 is simultaneously lived in gap between polished rod 5 and cover board 4, and crude oil is avoided to reveal, while being dimension
The personnel of repairing win enough maintenance time.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of oil pumping machine well head packing box, including box body (1), it is characterised in that: the top of box body (1) inner cavity is equipped with
The top of pressing sleeve (2), the box body (1) is equipped with gland (3), and the top of the gland (3) is equipped with cover board (4), the cover board (4)
Top be equipped with polished rod (5), the bottom end of the polished rod (5) sequentially passes through cover board (4), gland (3), pressing sleeve (2) and box body (1),
The inside of the gland (3) offers storage chamber (6), and the external activity of the polished rod (5) is socketed with oil removal pipe (7), it is described every
The bottom end of oil pipe (7) is connect with the bottom surface of storage chamber (6), and the external activity of the polished rod (5) is socketed with rubber bag tank (9), described
The top of rubber bag tank (9) is equipped with and strike-offs rubber (10), and the left and right sides of the gland (3) are equipped with mounting knob (11), institute
The top for stating box body (1) inner wall is equipped with seal groove (12), and the inside of the seal groove (12) is equipped with O-ring seal (13), described
Polished rod (5) is externally wrapped with the sealed packing (14) internal positioned at box body (1), and the bottom surface of box body (1) inner cavity is equipped with lining
It pads (15).
2. a kind of oil pumping machine well head packing box according to claim 1, it is characterised in that: the cover board (4) passes through spiral shell
Bolt is fixedly connected with gland (3).
3. a kind of oil pumping machine well head packing box according to claim 1, it is characterised in that: the storage chamber (6) it is interior
Oil storage tank is formed between wall and the outer wall of oil removal pipe (7).
4. a kind of oil pumping machine well head packing box according to claim 1, it is characterised in that: the bottom of the storage chamber (6)
Face, which is equipped with, is located at oil removal pipe (7) internal annular cotton block (8), the annular cotton block (8) and polished rod (5) pivot bush unit.
5. a kind of oil pumping machine well head packing box according to claim 1, it is characterised in that: the oil removal pipe (7) it is interior
Diameter value is greater than the outer diameter value of rubber bag tank (9).
6. a kind of oil pumping machine well head packing box according to claim 1, it is characterised in that: the rubber of strike-ofing (10)
Shape is taper, and the diameter value of rubber of strike-ofing (10) bottom surface is greater than the outer diameter value of oil removal pipe (7).
7. a kind of oil pumping machine well head packing box according to claim 1, it is characterised in that: the rubber of strike-ofing (10)
Inside offers bellmouth, the diameter value at the top of the bellmouth be less than polished rod (5) diameter value, the bellmouth bottom it is straight
Diameter value is identical as the inner diameter values of rubber bag tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522992.9A CN109441392B (en) | 2018-12-13 | 2018-12-13 | Packing box for wellhead of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522992.9A CN109441392B (en) | 2018-12-13 | 2018-12-13 | Packing box for wellhead of oil pumping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441392A true CN109441392A (en) | 2019-03-08 |
| CN109441392B CN109441392B (en) | 2020-10-16 |
Family
ID=65556965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811522992.9A Active CN109441392B (en) | 2018-12-13 | 2018-12-13 | Packing box for wellhead of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441392B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502657A (en) * | 2020-11-16 | 2021-03-16 | 中国石油天然气股份有限公司 | Packing box, production tree equipment and oil production system |
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| CA2629278A1 (en) * | 2002-08-09 | 2004-02-09 | Oil Lift Technology, Inc. | Stuffing box for progressing cavity pump drive |
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| US20140182847A1 (en) * | 2012-12-31 | 2014-07-03 | Knight Information Systems, Llc | Wellhead Sealing System and Method |
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| CN207879294U (en) * | 2018-01-12 | 2018-09-18 | 吉林爱科德科技有限公司 | Oil field shaft mouth sealing device |
| CN207960562U (en) * | 2018-02-26 | 2018-10-12 | 延长油田股份有限公司靖边采油厂 | A kind of packing box preventing eccentric wear and oil leak |
| CN108868685A (en) * | 2018-06-05 | 2018-11-23 | 大庆润欣石化科技有限公司 | The vertical well-sealing device of tuningout energy conservation |
-
2018
- 2018-12-13 CN CN201811522992.9A patent/CN109441392B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357123Y (en) * | 1998-08-18 | 2000-01-05 | 曾维康 | Self-sealed blow-out preventing box |
| US6394461B1 (en) * | 2000-03-17 | 2002-05-28 | Tom Henderson | Pressure compensated stuffing box for reciprocating pumping units |
| CA2629278A1 (en) * | 2002-08-09 | 2004-02-09 | Oil Lift Technology, Inc. | Stuffing box for progressing cavity pump drive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502657A (en) * | 2020-11-16 | 2021-03-16 | 中国石油天然气股份有限公司 | Packing box, production tree equipment and oil production system |
| CN112502657B (en) * | 2020-11-16 | 2022-07-05 | 中国石油天然气股份有限公司 | Packing box, production tree equipment and oil production system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109441392B (en) | 2020-10-16 |
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