CN209483276U - Double-layer sealing structure of polish rod of pumping well - Google Patents
Double-layer sealing structure of polish rod of pumping well Download PDFInfo
- Publication number
- CN209483276U CN209483276U CN201821979717.5U CN201821979717U CN209483276U CN 209483276 U CN209483276 U CN 209483276U CN 201821979717 U CN201821979717 U CN 201821979717U CN 209483276 U CN209483276 U CN 209483276U
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- Prior art keywords
- sleeve
- sealing
- wall
- outer sleeve
- sealant
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- 238000007789 sealing Methods 0.000 title claims abstract description 89
- 238000005086 pumping Methods 0.000 title claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract description 50
- 238000005461 lubrication Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 48
- 239000000565 sealant Substances 0.000 claims description 42
- 210000004907 gland Anatomy 0.000 claims description 16
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 239000003129 oil well Substances 0.000 abstract description 13
- 238000009837 dry grinding Methods 0.000 abstract description 5
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- -1 Packing Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to a double-deck seal structure of pumping well polished rod, include first sealing layer and the second sealing layer of locating on the polished rod along axial interval ground seal cover, first sealing layer with all set up a plurality of O type packings in the second sealing layer, the bottom of first sealing layer with set up confined space between the top of second sealing layer, the lubricated unit of O type packing in first sealing layer of packing ability lubrication and the second sealing layer is filled to the confined space. Compared with a common polish rod sealer, the double-layer sealing structure of the polish rod of the pumping well is additionally provided with one sealing layer, and a lubricating unit is filled between the two sealing layers to lubricate a wellhead packing, so that oil leakage of the wellhead packing and oil carrying of the polish rod caused by dry grinding of the polish rod are avoided, environmental pollution is reduced, and the oil well time rate is improved.
Description
Technical field
The utility model relates to oil field pumping well wellhead assembly more particularly to a kind of pumping well polish rod double-layer sealing structures.
Background technique
In viscous crude, high solidifying oily production base, due to viscosity of crude height, many wells will appear different degrees of well head packing leakage
The phenomenon of oil, polished rod band oil.The polished rod sealer for taking the prior art is unable to reach oil-leakage-prevention, the purpose with oil.When packing leaks
When oil, polished rod band oil, the result directly occurred is exactly to pollute production tree and Well head flow path, and ground pollution is caused when serious.Mainly
Influence has the following aspects:
1, packing is repeatedly replaced, it is time-consuming and laborious, to delay other work；
2, due to replacement packing number increase, increase Master Cost, waste a certain amount of light oil, cotton yarn, coating,
Packing, raw material band etc.；
3, stop to take out when sand output well removable disk root and easily cause the halt production of oil well sand card or even well workover, influence yield；
4, oil-well time-rate is influenced.
The present inventor based on years of experience and practice in relevant industries, proposes that a kind of pumping well polish rod is double-deck as a result,
Sealing structure, to overcome the deficiencies of existing technologies.
Utility model content
The purpose of this utility model is to provide a kind of pumping well polish rod double-layer sealing structures, overcome and exist in the prior art
Oil pumping well packing oil leak, environmental pollution, low oil-well time-rate the problems such as, the pumping well polish rod double-layer sealing structure is than general common
Polished rod sealer more increase one layer of sealant, and between two layers of sealant fill lubrication unit lubricate well head packing, keep away
Exempt from well head packing oil leak caused by polished rod is dry grinded, polished rod band oil, reduces environmental pollution, improve oil-well time-rate.
The purpose of this utility model is achieved in that a kind of pumping well polish rod double-layer sealing structure, including between axial direction
Every in the first sealant and the second sealant of the ground sealing shroud on polished rod, first sealant and second sealant
Multiple O-shaped packings are respectively provided with, sealing space is set between the bottom end of first sealant and the top of second sealant,
Filling can lubricate the lubrication unit of O-shaped packing in the first sealant and the second sealant in the sealing space.
In a better embodiment of the utility model, first sealant include the first outer sleeve, described first
The multiple O-shaped packings of setting in outer sleeve, inner wall sealed bottom the first close back cover sleeve of connection of first outer sleeve, described first
The upper pressing sleeve of the first sealing is tightly connected at the top of the inner wall of outer sleeve, the described first top setting energy seal buckle for sealing upper pressing sleeve is set
The first sealing outer press cover at the top of the outer wall of the first outer sleeve, the upper pressing sleeve of first sealing and the first close back cover sleeve
The outer wall of inner wall and polished rod is in gap setting；
Second sealant includes the second outer sleeve with the first outer sleeve axially spaced-apart, second outer sleeve
The multiple O-shaped packings of interior setting, the bottom connection diameter of second outer sleeve cumulative tapered sleeve from up to down, the top of the tapered sleeve
Support stage portion is constituted between face and the bottom of second outer sleeve, setting is sealedly attached to described in the support stage portion
The inner wall top of second close back cover sleeve of the inner wall bottom of the second outer sleeve, second outer sleeve is tightly connected in the second sealing
Pressing sleeve, seal buckle sets the second sealing outer press cover, institute between the bottom end of first outer sleeve and the top of second outer sleeve
It states between the second sealing outer press cover, the inner wall of the upper pressing sleeve of second sealing and the second close back cover sleeve and the outer wall of polished rod and is in
Gap setting；
First seals the upper bottom end of pressing sleeve, the inner wall of the first outer sleeve, the inner wall of the first close back cover sleeve, the second sealing external pressure
The inner wall of lid, second seal the upper inner wall of pressing sleeve, the inner wall of the second outer sleeve, the top of the second close back cover sleeve and the outer wall of polished rod
Between gap constitute the sealing space.
In a better embodiment of the utility model, the second sealing outer press cover includes the second gland body, institute
State the both ends of the second gland body recessed first inner groovy and the second inner groovy respectively inwards, first inner groovy and described
First polished rod via hole of perforation is set between two inner groovies, and the sealed bottom of first outer sleeve is sheathed on first indent
In slot, the top sealing shroud of second outer sleeve is set in second inner groovy, the slot bottom of first inner groovy against
In the bottom surface of the described first close back cover sleeve, the slot bottom of second inner groovy is resisted against the described second top surface for sealing upper pressing sleeve.
In a better embodiment of the utility model, described second seals upper pressing sleeve including being sealedly attached to outside second
In sleeve second on pressing sleeve ontology, setting diameter is described in the second boss for increasing setting on pressing sleeve ontology on described second
The slot bottom of second inner groovy is set to the top surface of the second boss against pressure.
In a better embodiment of the utility model, described first seals upper pressing sleeve including being sealedly attached to outside first
In sleeve first on pressing sleeve ontology, setting diameter is described in the first boss for increasing setting on pressing sleeve ontology on described first
First sealing outer press cover includes the first gland body, and one end of first gland body sets to the concave third inner groovy, described
From the third inner groovy to the other end, the second polished rod via hole, the top of first outer sleeve is arranged in perforation in first gland body
Portion and the upper pressing sleeve of the first sealing are sheathed in the third inner groovy, and the slot bottom of the third inner groovy is set to institute against pressure
State the top surface of first boss.
From the above mentioned, pumping well polish rod double-layer sealing structure provided by the utility model has the following beneficial effects:
Pumping well polish rod double-layer sealing structure provided by the utility model increases more than general common polished rod sealer
One layer of sealant, and fill lubrication unit between two layers of sealant and lubricate well head packing, well head caused by avoiding polished rod from dry grinding
Packing oil leakage, polished rod band oil, save well head packing replacement fee of material and operation cost, improve oil-well time-rate, increase yield,
Reduce well site pollution, reduces labor intensity.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1: for the schematic diagram of the pumping well polish rod double-layer sealing structure of the utility model.
Fig. 2: for the schematic diagram of the second sealing outer press cover of the utility model.
Fig. 3: for the schematic diagram of the first sealing outer press cover of the utility model.
In figure:
100, pumping well polish rod double-layer sealing structure；
1, the first sealant；
11, the first outer sleeve；12, the first close back cover sleeve；13, first upper pressing sleeve is sealed；130, pressing sleeve ontology on first；
131, first boss；14, the first sealing outer press cover；140, the first gland body；141, third inner groovy；142, the second polished rod mistake
Hole；
2, the second sealant；
20, tapered sleeve；201, support stage portion；
21, the second outer sleeve；
22, the second close back cover sleeve；
23, second upper pressing sleeve is sealed；230, pressing sleeve ontology on second；231, second boss；
24, the second sealing outer press cover；240, the second gland body；241, the first inner groovy；242, the second inner groovy；243,
First polished rod via hole；
3, O-shaped packing；
4, sealing space；
90, polished rod.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.
As shown in Figure 1, Figure 2 and Figure 3, the utility model provides a kind of pumping well polish rod double-layer sealing structure 100, including edge
It is axially spaced first sealant 1 and second sealant 2, first sealant and second sealant of the sealing shroud on polished rod 90
Multiple O-shaped packings 3 are inside respectively provided with, sealing space 4 is set between the top of first sealant 1 and the bottom end of the second sealant 2, it is close
Filling can lubricate the lubrication unit of O-shaped packing 3 in the first sealant 1 and the second sealant 2 in envelope space 4.
Pumping well polish rod double-layer sealing structure provided by the utility model increases more than general common polished rod sealer
One layer of sealant, and fill lubrication unit between two layers of sealant and lubricate well head packing, well head caused by avoiding polished rod from dry grinding
Packing oil leakage, polished rod band oil, save well head packing replacement fee of material and operation cost, improve oil-well time-rate, increase yield,
Reduce well site pollution, reduces labor intensity.
Further, as shown in Figure 1, the first sealant 1 includes the first outer sleeve 11, the multiple O of setting in the first outer sleeve 11
Type packing 3 (prior art), O-shaped packing 3 can be 4~6, and particular number determines according to actual needs；First outer sleeve 11
Inner wall sealed bottom connect the first close back cover sleeve 12, first is tightly connected at the top of the inner wall of the first outer sleeve 11 and seals upper pressing sleeve
13, the first top setting for sealing upper pressing sleeve 13 can first sealing external pressure of the seal buckle at the top of the outer wall of the first outer sleeve 11
Lid 14, the first outer wall for sealing the inner wall and polished rod 90 of upper pressing sleeve 13 and the first close back cover sleeve 12 is in gap setting；
As shown in Figure 1, the second sealant 2 includes the second outer sleeve 21 with 11 axially spaced-apart of the first outer sleeve, outside second
The multiple O-shaped packings 3 (prior art) of setting, O-shaped packing 3 can be 4~6 in sleeve 21, and particular number is according to actual needs
It determines；Cumulative tapered sleeve 20, the inner wall and polished rod 90 of tapered sleeve 20 are radial from up to down for the bottom connection diameter of second outer sleeve 21
Interval, convenient for the up and down motion of polished rod 90.Support stage portion is constituted between the top surface of tapered sleeve 20 and the bottom of the second outer sleeve 21
201, setting is sealedly attached to the second close back cover sleeve 22 of the inner wall bottom of the second outer sleeve 21 in support stage portion 201, and second
The upper pressing sleeve 23 of the second sealing of sealed connection at the top of the inner wall of outer sleeve 21, the bottom end of the first outer sleeve 11 and the second outer sleeve 21
Seal buckle sets the second sealing outer press cover 24 between top, and the second sealing outer press cover 24, second seals upper pressing sleeve 23 and the second sealing
It is in gap setting between the inner wall of bottom set 22 and the outer wall of polished rod 90；
First seals the upper bottom end of the pressing sleeve 13, inner wall of the first outer sleeve 11, the inner wall of the first close back cover sleeve 12, second close
Seal the inner wall of outer press cover 24, the top of the upper inner wall of pressing sleeve 23 of the second sealing, the inner wall of the second outer sleeve 21, the second close back cover sleeve 22
Gap between end and the outer wall of polished rod 90 constitutes sealing space 4 above-mentioned.Lubrication unit is that can lubricate polished rod and O-shaped packing
3 lubricating grease, the interior a certain amount of lubricating grease of filling of sealing space 4, to the O-shaped packing in the first sealant 1 and the second sealant 2
3 play lubricating action, solve polished rod 90 and dry grind, and avoid well head packing oil leak caused by dry grinding, polished rod band oil.
Further, as depicted in figs. 1 and 2, the second sealing outer press cover 24 includes the second gland body 240, the second gland sheet
The both ends of body 240 recessed first inner groovy 241 and the second inner groovy 242 respectively inwards, the first inner groovy 241 and the second inner groovy
First polished rod via hole 243 of perforation is set between 242, the side wall of the first polished rod via hole 243 and the outer wall of polished rod are in gap setting,
The sealed bottom of first outer sleeve 11 is sheathed in the first inner groovy 241, and the top sealing shroud of the second outer sleeve 21 is set to second
In inner groovy 242, the slot bottom of the first inner groovy 241 is resisted against the bottom surface of the first close back cover sleeve 12, the slot bottom of the second inner groovy 242
It is resisted against the top surface of pressing sleeve 23 in the second sealing.
Further, as shown in Figure 1, second seals upper pressing sleeve 23 including being sealedly attached on second in the second outer sleeve 21
Pressing sleeve ontology 230, on second on pressing sleeve ontology 230 setting diameter in the second boss 231 for increasing setting, the second inner groovy 242
Slot bottom against pressure be set to second boss 231 top surface.
Further, as shown in figures 1 and 3, first upper pressing sleeve 13 is sealed including being sealedly attached in the first outer sleeve 11
Pressing sleeve ontology 130 on first, on first on pressing sleeve ontology 130 setting diameter in the first boss 131 for increasing setting, the first sealing
Outer press cover 14 includes the first gland body 140, and one end of the first gland body 140 sets to the concave third inner groovy 141, the first pressure
From third inner groovy 141 to the other end, the second polished rod via hole 142, the side of the second polished rod via hole 142 is arranged in perforation on lid ontology 140
The outer wall of wall and polished rod seals upper pressing sleeve 13 and is sheathed in third in setting, the top of the first outer sleeve 11 and first is sealed against
In groove 141, the slot bottom of third inner groovy 141 is set to the top surface of first boss 131 against pressure.
In a specific embodiment of the utility model, the previous serious oil well of oil leak, the average 1-7 days primary disks of replacement
Root, after pumping well polish rod double-layer sealing structure provided by the utility model, the period for replacing packing be can be extended down to 4-5 months.
Pumping well polish rod double-layer sealing structure provided by the utility model have it is below the utility model has the advantages that
1, fee of material is saved
Oil well replaces packing every time need to consume about 20 yuan of the Master Costs such as packing, light oil, cotton yarn, press and use the preceding period 6
It calculates each well annual expendable material and take reachable 1200 yuan or so, is increased to 3 months using the rear replacement cycle, year material disappear
Consumption is reduced to 80 yuan, saves 1100 yuan of material consumption or so, calculates by certain oil producing operation area using 60 mouthfuls of wells, it is contemplated that year can save
About 6 Wan Duoyuan of fee of material.
2, operation cost is saved
Certain oil producing operation area stops 24 mouthfuls of oil well of sand card operation caused by taking out for 1 year because of replacement packing according to statistics, uses the oil pumping
After well polished rod double-layer sealing structure 100, because the replacement cycle greatly increases, the probability of sand card is reduced to original 1/30, that is
Because the operation of sand card is reduced to 1 mouthful from original 24 mouthfuls, a large amount of operating cost is saved, it is contemplated that whole year can save operation cost 700,000
It is polynary.
3, oil-well time-rate is improved, yield is increased
It is calculated by 60 mouthfuls of certain oil producing operation area oil well, a packing must replaced using first average 6 days, needed every time
It is 0.5 hour, annual because replacement packing just stops well 1800 hours.Using stopping the well time after pumping well polish rod double-layer sealing structure 100
It is reduced to 120 hours, reduction stops the well time 1600 hours, closes 66 days, produces 5 tons of calculating daily by average each well, whole year volume increase is former
More than 300 tons of oil.
4, well site pollution is reduced, labor intensity is reduced
Since packing oil leakage phenomenon is prevented, pollution greatly reduces.With it is preceding because production tree caused by packing oil leakage, pumping unit,
Well site pollution, has put into a large amount of human and material resources and has gone to administer, prevented substantially because polluting caused by packing oil leakage now.Together
When, the reduction of the reduction, pollution level of replacing packing number reduces the labor intensity of worker significantly.
From the above mentioned, pumping well polish rod double-layer sealing structure provided by the utility model has the following beneficial effects:
Pumping well polish rod double-layer sealing structure provided by the utility model increases more than general common polished rod sealer
One layer of sealant, and fill lubrication unit between two layers of sealant and lubricate well head packing, well head caused by avoiding polished rod from dry grinding
Packing oil leakage, polished rod band oil, save well head packing replacement fee of material and operation cost, improve oil-well time-rate, increase yield,
Reduce well site pollution, reduces labor intensity.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.
Claims (5)
1. a kind of pumping well polish rod double-layer sealing structure, which is characterized in that be set on polished rod including axially spaced ground sealing shroud
The first sealant and the second sealant, be respectively provided with multiple O-shaped packings, institute in first sealant and second sealant
It states and sealing space is set between the bottom end of the first sealant and the top of second sealant, energy is filled in the sealing space
Lubricate the lubrication unit of O-shaped packing in the first sealant and the second sealant.
2. pumping well polish rod double-layer sealing structure as described in claim 1, which is characterized in that first sealant includes the
One outer sleeve, the interior multiple O-shaped packings of setting of first outer sleeve, the inner wall sealed bottom connection first of first outer sleeve
Close back cover sleeve is tightly connected first at the top of the inner wall of first outer sleeve and seals upper pressing sleeve, and described first seals upper pressing sleeve
Top setting can seal buckle be set to the first sealing outer press cover at the top of the outer wall of the first outer sleeve, described first seal upper pressing sleeve and
The inner wall of the first close back cover sleeve and the outer wall of polished rod are in gap setting；
Second sealant includes the second outer sleeve with the first outer sleeve axially spaced-apart, is set in second outer sleeve
Set multiple O-shaped packings, the bottom connection diameter of second outer sleeve cumulative tapered sleeve from up to down, the top surface of the tapered sleeve with
Support stage portion is constituted between the bottom of second outer sleeve, setting is sealedly attached to described second in the support stage portion
Second close back cover sleeve of the inner wall bottom of outer sleeve, the inner wall top of second outer sleeve are tightly connected in the second sealing and press
Set, seal buckle sets the second sealing outer press cover between the bottom end of first outer sleeve and the top of second outer sleeve, described
Between being between second sealing outer press cover, the inner wall of the upper pressing sleeve of second sealing and the second close back cover sleeve and the outer wall of polished rod
Gap setting；
First, which seals the above bottom end of pressing sleeve, the inner wall of the first outer sleeve, the inner wall of the first close back cover sleeve, second, seals outer press cover
Inner wall, the second sealing are above between the inner wall of pressing sleeve, the inner wall of the second outer sleeve, the top of the second close back cover sleeve and the outer wall of polished rod
Gap constitute the sealing space.
3. pumping well polish rod double-layer sealing structure as claimed in claim 2, which is characterized in that the second sealing outer press cover packet
Include the second gland body, the both ends of second gland body recessed first inner groovy and the second inner groovy respectively inwards are described
First polished rod via hole of perforation, the sealed bottom of first outer sleeve are set between the first inner groovy and second inner groovy
It being sheathed in first inner groovy, the top sealing shroud of second outer sleeve is set in second inner groovy, and described the
The slot bottom of one inner groovy is resisted against the bottom surface of the described first close back cover sleeve, and the slot bottom of second inner groovy is resisted against described second
The top surface of pressing sleeve in sealing.
4. pumping well polish rod double-layer sealing structure as claimed in claim 3, which is characterized in that described second seals upper pressing sleeve packet
Pressing sleeve ontology on second be sealedly attached in the second outer sleeve is included, diameter is set on pressing sleeve ontology on described second and is set in increase
The second boss set, the slot bottom of second inner groovy are set to the top surface of the second boss against pressure.
5. pumping well polish rod double-layer sealing structure as claimed in claim 2, which is characterized in that described first seals upper pressing sleeve packet
Pressing sleeve ontology on first be sealedly attached in the first outer sleeve is included, diameter is set on pressing sleeve ontology on described first and is set in increase
The first boss set, the first sealing outer press cover includes the first gland body, and one end of first gland body concaves
If third inner groovy, from the third inner groovy to the other end, the second polished rod via hole is arranged in perforation in first gland body,
The top of first outer sleeve and the upper pressing sleeve of the first sealing are sheathed in the third inner groovy, the third inner groovy
Slot bottom against pressure be set to the first boss top surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979717.5U CN209483276U (en) | 2018-11-28 | 2018-11-28 | Double-layer sealing structure of polish rod of pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979717.5U CN209483276U (en) | 2018-11-28 | 2018-11-28 | Double-layer sealing structure of polish rod of pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483276U true CN209483276U (en) | 2019-10-11 |
Family
ID=68116903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821979717.5U Active CN209483276U (en) | 2018-11-28 | 2018-11-28 | Double-layer sealing structure of polish rod of pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483276U (en) |
-
2018
- 2018-11-28 CN CN201821979717.5U patent/CN209483276U/en active Active
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