CN110107244B - Crushed aggregates fills type combined material bag packing - Google Patents
Crushed aggregates fills type combined material bag packing Download PDFInfo
- Publication number
- CN110107244B CN110107244B CN201910336325.XA CN201910336325A CN110107244B CN 110107244 B CN110107244 B CN 110107244B CN 201910336325 A CN201910336325 A CN 201910336325A CN 110107244 B CN110107244 B CN 110107244B
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- China
- Prior art keywords
- packing
- cavity
- packing box
- crushed aggregates
- oil
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- 238000012856 packing Methods 0.000 title claims abstract description 88
- 239000000463 material Substances 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 2
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
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 invention belongs to the technical field of polish rod sealing of pumping wells in oil exploitation, and particularly relates to a crushed aggregate filling type composite material bag type packing. Including packing box and packing, the packing setting in the packing box, the upper end threaded connection of packing box has the hood, the packing be tubular structure, tubular structure's the inside shell of taking out of outer wall forms annular cavity, cavity department has beaten the pore of intercommunication cylindrical packing inner chamber, packs between cavity and the packing box inner wall and mixes oily crushed aggregates, the other intercommunication of packing box lateral wall that the cavity corresponds has the filling tube, the filling tube in slide and be provided with the sealing plug that is used for sealed stirring oily crushed aggregates, the free end threaded connection of filling tube has the cock, is provided with the spring between sealing plug and the cock. The invention has the advantages of simple structure, easy processing and manufacturing, reasonable design, no material leakage, good lubricating property, long service cycle, no need of frequently locking the top cap, no need of frequently filling, delayed replacement of the packing and the like, and is very suitable for popularization and use.
Description
Technical Field
The invention belongs to the technical field of polish rod sealing of pumping wells in oil exploitation, and particularly relates to a crushed aggregate filling type composite material bag type packing.
Background
In the field of oil extraction in oil fields, the packing injection type disassembly-free packing box has been recognized and widely used by oil fields due to the advantages of longer service cycle, lower cost, no need of disassembling and replacing the packing and the like. However, after the packing injection type disassembly-free packing box is used for a period of time, a gap is generated due to abrasion, and the problem of material leakage exists, so that the further improvement of the sealing period of the packing injection type disassembly-free packing box is directly restricted.
Disclosure of Invention
In order to further improve the sealing period of the packing while reducing the cost, the invention provides the crushed material filled composite material bag type packing which has the characteristics of low cost, long sealing period and good lubricating property.
The technical scheme provided by the invention is as follows: the utility model provides a crushed aggregates type combined material bag packing that packs, includes packing box and packing, the packing setting in the packing box, the upper end threaded connection of packing box has the hood, the packing be tubular structure, tubular structure's the inside shell that takes out of outer wall forms annular cavity, cavity department has beaten the pore of intercommunication drum shape packing inner chamber, packs between cavity and the packing box inner wall and mixes oily crushed aggregates, the other intercommunication of the packing box lateral wall that the cavity corresponds has the filling tube, the filling tube in slide and be provided with the sealing plug that is used for sealed stirring oily crushed aggregates, the free end threaded connection of filling tube has the cock, is provided with the spring between filling tube and the cock.
The axial section of the annular concave cavity is of a dovetail structure; the packing is SBS styrene thermoplastic elastomer; the pore diameter of the fine pores is 100-500 μm; the two feeding pipes are respectively arranged on the packing boxes corresponding to the upper end and the middle part of the cavity.
The invention has the beneficial effects that:
1. the packing tightly holds the polished rod through the packing bag, the holding force is uniform, and the sealing effect is better than the sealing effect of the packing directly contacting the polished rod; the oil-mixed crushed aggregates can use cheaper waste materials, and the cost can be further reduced.
2. The fine hole is formed in the wall of the packing cavity, lubricating oil in the oil-mixed crushed aggregates passes through the fine hole and acts between the inner side of the packing and the polish rod, the lubrication degree of the packing bag and the polish rod is improved, abrasion is reduced, and the service life of the packing is prolonged.
3. The invention does not need frequent locking top caps and frequent filling, thereby reducing the workload of post workers.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the packing set of the present invention.
In the figure: 1-polish rod, 2-top cap, 3-packing box, 4-packing, 5-oil-mixed crushed aggregates, 6-feed pipe, 7-cock, 8-spring, 9-sealing plug and 10-pore.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to the attached drawings 1-2, the packing box comprises a packing box 3 and a packing 4, the packing 4 is arranged in the packing box 3, an upper end of the packing box 3 is connected with a top cap 2 in a threaded manner, the packing 4 is pressed in the packing box 3 through the top cap 2, the packing 4 is of a cylindrical structure, an outer wall of the cylindrical structure is inwardly pulled out to form an annular cavity, a bag type structure is further formed, a fine hole 10 communicated with an inner cavity of the cylindrical packing 4 is formed in the cavity, oil-mixing crushed aggregates 5 are filled between the inner wall of the packing box 3 and the cavity, lubricating oil in the oil-mixing crushed aggregates 5 penetrates through the fine hole 10 to act between the inner side of the packing 4 and the polish rod 1, the lubrication degree between the packing 4 and the polish rod 1 is improved, abrasion is reduced, and the service. Because the crushed oil-mixed material 5 is not directly contacted with the polished rod 1, the crushed oil-mixed material 5 can use cheaper waste belts, and the cost can be further reduced.
The lateral wall of the packing box 3 corresponding to the cavity is bypassed by a feeding pipe 6, the oil-mixed crushed aggregates 5 are added from the feeding pipe 6, the number of the feeding pipes 6 is two, the feeding pipes are respectively arranged on the packing box 3 corresponding to the upper end and the middle part of the cavity, the design is favorable for improving the feeding speed and the fullness of the oil-mixed crushed aggregates 5, for example, the number of the feeding pipes 6 in the embodiment is two, one feeding pipe is arranged on the packing box 3 corresponding to the middle part of the cavity, and the other feeding pipe is arranged on the packing box 3 corresponding to the upper part of the cavity, and is named as a middle feeding pipe and an upper feeding pipe for the convenience of distinguishing, when feeding, the oil-mixed crushed aggregates 5 added by the middle feeding pipe are favorable for the fullness of the lower part of the cavity, the oil-mixed crushed aggregates 5 added by the upper feeding pipe are favorable for the fullness of the upper part of the cavity, the feeding pipes 6 can simultaneously improve, and a spring 8 can be added when a feeding pipe 6 is added, so that the pressure on the oil-mixing crushed aggregates 5 is increased, and the compensation range of the holding force applied to the oil-mixing crushed aggregates 5 is increased.
The packing device is characterized in that a sealing plug 9 used for sealing the oil-mixing crushed aggregates 5 is arranged in the feeding pipe 6 in a sliding and sealing mode, the sealing plug 9 is connected with the inner wall of the feeding pipe 6 in a sliding and sealing mode, a cock 7 is connected to the free end of the feeding pipe 6 in a threaded mode, the cock 7 can be screwed in and out of the free end of the feeding pipe 6, the pressure of the oil-mixing crushed aggregates 5 is further increased or reduced, a spring 8 is arranged between the sealing plug 9 and the cock 7, when the spring 8 is compressed, the spring 8 transmits force to the sealing plug 9, the pressure of the oil-mixing crushed aggregates 5 is increased, and the compensatory holding force is increased.
The axial cross-section of annular cavity be dovetail structure, the leakproofness between both ends and packing box 3 about this design's meaning lies in increasing the cavity, mixes oily crushed aggregates 5 and fills in the cavity, to the internal surface all directions production pressure of cavity, including dovetail structure department, the pressure of this department can effectual increase the leakproofness between packing 4 and the packing box 3, the risk of leaking the material about reducing.
The packing 4 is SBS styrene thermoplastic elastomer, and the material has excellent wear resistance, corrosion resistance and softness, can prolong the service cycle of the packing 4, and can reduce the damage to the polish rod 1.
The aperture of the fine hole 10 is 100-500 microns, the fine hole 10 in the range has good oil passing effect and does not leak materials, if oil-mixed crushed material 5 foam is brought out, the packing 4 is abraded and leaked, or replaced or continuously used for a period of time, the packing can be continuously used for a period of time, because the oil-mixed crushed material 5 can also play a certain sealing role, and the new packing 4 does not need to be replaced immediately, the invention can provide sufficient time for replacing the new packing 4, and avoids wellhead oil leakage loss and pollution caused by untimely replacement of the packing 4.
The invention has the advantages of simple structure, easy processing and manufacturing, reasonable design, no material leakage, good lubricating property, long service cycle, no need of frequently locking the top cap 2, no need of frequently filling, delayed replacement of the packing 4 and the like, and is very suitable for popularization and use.
Claims (3)
1. The utility model provides a crushed aggregates fills type combined material bag packing, includes packing box (3) and packing (4), packing (4) set up in packing box (3), the upper end threaded connection of packing box (3) has hood (2), its characterized in that: the packing (4) is of a cylindrical structure, the outer wall of the cylindrical structure is inwards pulled out to form an annular cavity, a fine hole (10) communicated with the inner cavity of the cylindrical packing (4) is drilled at the cavity, the oil-mixing crushed aggregates (5) are filled between the cavity and the inner wall of the packing box (3), a feeding pipe (6) is in bypass connection with the side wall of the packing box (3) corresponding to the cavity, a sealing plug (9) used for sealing the oil-mixing crushed aggregates (5) is arranged in the feeding pipe (6) in a sliding mode, the free end of the feeding pipe (6) is in threaded connection with a cock (7), and a spring (8) is arranged between the sealing plug (9) and the cock (7);
the axial section of the annular concave cavity is of a dovetail structure;
the packing (4) is an SBS styrene thermoplastic elastomer.
2. The particle-filled composite material bag packing set of claim 1, wherein: the pore diameter of the fine pores (10) is 100-500 μm.
3. The particle-filled composite material bag packing set of claim 1, wherein: the two feeding pipes (6) are respectively arranged on the packing boxes (3) corresponding to the upper end and the middle part of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336325.XA CN110107244B (en) | 2019-04-25 | 2019-04-25 | Crushed aggregates fills type combined material bag packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336325.XA CN110107244B (en) | 2019-04-25 | 2019-04-25 | Crushed aggregates fills type combined material bag packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107244A CN110107244A (en) | 2019-08-09 |
| CN110107244B true CN110107244B (en) | 2021-04-27 |
Family
ID=67486659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910336325.XA Active CN110107244B (en) | 2019-04-25 | 2019-04-25 | Crushed aggregates fills type combined material bag packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110107244B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201546655U (en) * | 2009-11-17 | 2010-08-11 | 中国石油天然气股份有限公司 | Double-stage sealer |
| CN203961881U (en) * | 2014-07-09 | 2014-11-26 | 段福海 | Two-chamber side packing seal box |
| WO2016004796A1 (en) * | 2014-07-10 | 2016-01-14 | 刘玉玺 | Self-lubricating oil-pumping polished rod following sealer |
| CN207974790U (en) * | 2018-03-21 | 2018-10-16 | 刘思洋 | A kind of anti-leak well head environment-protective sealing device |
| CN208564484U (en) * | 2018-03-07 | 2019-03-01 | 贾广生 | A kind of polish rod sealing without replacing sealing element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030184019A1 (en) * | 2002-04-02 | 2003-10-02 | Rimmer Ian Douglas | Method and apparatus for injecting packing into stuffing boxes for reciprocating rods |
-
2019
- 2019-04-25 CN CN201910336325.XA patent/CN110107244B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201546655U (en) * | 2009-11-17 | 2010-08-11 | 中国石油天然气股份有限公司 | Double-stage sealer |
| CN203961881U (en) * | 2014-07-09 | 2014-11-26 | 段福海 | Two-chamber side packing seal box |
| WO2016004796A1 (en) * | 2014-07-10 | 2016-01-14 | 刘玉玺 | Self-lubricating oil-pumping polished rod following sealer |
| CN208564484U (en) * | 2018-03-07 | 2019-03-01 | 贾广生 | A kind of polish rod sealing without replacing sealing element |
| CN207974790U (en) * | 2018-03-21 | 2018-10-16 | 刘思洋 | A kind of anti-leak well head environment-protective sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110107244A (en) | 2019-08-09 |
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Effective date of registration: 20210616 Address after: 163000 1-903, Jinying international office building, No.24, Huoju new street, high tech Zone, Daqing City, Heilongjiang Province Patentee after: Daqing Yanke Environmental Protection Technology Development Co.,Ltd. Address before: Room 601, gate 1, No.18, Nanhu Jingyuan, Saertu District, Daqing City, Heilongjiang Province, 163000 Patentee before: Zhu Guanghai |
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