CN108222878B - Puncture-leakage-preventing pollution device and packing box device - Google Patents
Puncture-leakage-preventing pollution device and packing box device Download PDFInfo
- Publication number
- CN108222878B CN108222878B CN201611190512.4A CN201611190512A CN108222878B CN 108222878 B CN108222878 B CN 108222878B CN 201611190512 A CN201611190512 A CN 201611190512A CN 108222878 B CN108222878 B CN 108222878B
- Authority
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- China
- Prior art keywords
- opening
- tank body
- puncture
- packing box
- oil
- 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.)
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Links
- 238000012856 packing Methods 0.000 title claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000002265 prevention Effects 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000001154 acute effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 description 16
- 238000000605 extraction Methods 0.000 description 6
- 238000003912 environmental pollution Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention provides a puncture and leakage preventing device and a packing box device, wherein the puncture and leakage preventing device comprises: the tank body is provided with a hollow cavity, and a first opening and a second opening for penetrating the sucker rod are respectively arranged at two opposite ends of the tank body, and are communicated with the hollow cavity; the first opening is connected with the top end of the packing box in a sealing way, and a sealing piece is arranged at the second opening and is sealed in a gap between the sucker rod and the second opening; the side wall of the tank body is provided with a liquid collecting port communicated with the hollow cavity and the outside, and the puncture and leakage pollution prevention device is mainly used for being connected to the top end of the packing box to prevent puncture and leakage pollution, and meanwhile, the safety of a workplace is improved, and energy sources are recovered.
Description
Technical Field
The invention relates to the technical field of oil extraction pollution prevention, in particular to a puncture and leakage prevention pollution device and a packing box device.
Background
In the oil exploitation industry, the packing box is an important part, and the packing box is mainly used for sealing between the sucker rod and the oil pipe to prevent liquid from overflowing.
In the prior art, when oil is extracted by the oil pumping machine, the sucker rod is sealed with a packing box arranged at the oil extraction vertical well head through packing, wherein the packing is also called sealing filler, a gap between the sucker rod and the packing box is filled, and the packing is tightly pressed by a gland so as to ensure sealing between the sucker rod and the packing box.
However, at present, some oilfield production wells have higher water content, in the oil extraction process, the lubrication effect on packing is weakened because of less oil content, so that the friction between a sucker rod and the packing is serious, and stratum water has certain corrosiveness, so that the packing is easy to wear and corrode, the phenomenon of thorn leakage is caused, oil leaks out from a packing box, the working environment is polluted, and meanwhile, the risk of fire is easily caused by the leaked oil.
Disclosure of Invention
The embodiment of the invention provides a puncture and leakage preventing pollution device and a packing box device, which are used for preventing environmental pollution caused by puncture and leakage, improving the safety of a workplace and recycling energy.
In one aspect, an embodiment of the present invention provides a puncture-leakage-preventing device, including:
the tank body is provided with a hollow cavity, and a first opening and a second opening for penetrating the sucker rod are respectively arranged at two opposite ends of the tank body, and are communicated with the hollow cavity; the first opening is connected with the top end of the packing box in a sealing way, and a sealing piece is arranged at the second opening and is sealed in a gap between the sucker rod and the second opening; the side wall of the tank body is provided with a liquid collecting port which is communicated with the hollow cavity and the outside.
Specifically, an oil baffle is arranged in the hollow cavity, one end of the oil baffle is connected with the inner wall of the tank body, and the other end of the oil baffle extends towards the inside of the tank body and has a gap with a sucker rod penetrating through the hollow cavity; the oil baffle is positioned between the liquid receiving opening and the second opening.
Optionally, the oil baffle is spirally wound on the inner wall of the tank body.
Optionally, the oil baffle is annular, and the height of the outer edge of the oil baffle in the axial direction of the tank body is higher than the height of the inner edge of the oil baffle.
Specifically, a liquid guide pipeline is arranged at the liquid receiving port and is communicated with the liquid receiving port; the liquid guide pipeline extends out of the first opening, and the axial direction of the liquid guide pipeline and the pipe wall direction of the tank body form an acute angle.
Specifically, the liquid receiving port is also provided with a valve for controlling the on-off of the liquid receiving port.
Specifically, the top of the tank body comprises a pipe body and an upper cover, the first end of the pipe body is connected with the tank body, the second end of the pipe body is provided with a second opening, the upper cover is arranged at the second end of the pipe body, and the upper cover is provided with a through hole through which the sucker rod can pass; a retainer ring extending in a direction parallel to the axial direction of the tank body is arranged on the inner side of the cover top of the upper cover; the sealing element comprises a sleeve, one end of the sleeve is provided with a flange protruding out of the outer wall of the sleeve, the sleeve is sleeved on the inner side of the inner wall of the pipe body, the flange is clamped between the upper cover and the second end of the pipe body, and the retainer ring is tightly attached to the inner wall of the sleeve.
Specifically, the tank body comprises a first part and a second part which are in butt joint, the oil baffle, the first opening and the liquid receiving opening are positioned in the first part, and the sealing element and the second opening are positioned in the second part.
Specifically, the first opening is connected with a screwed joint, and the screwed joint is used for screwed connection packing box.
On the other hand, the embodiment of the invention provides a packing box device, which comprises a packing box and the puncture and leakage preventing pollution device; the first opening of the puncture-proof pollution device is connected to the top end of the packing box in a sealing way.
The puncture-proof pollution device and the packing box device are arranged at the top end of the packing box, when the packing in the packing box is corroded by abrasion in the oil extraction process, oil flows into the tank body of the puncture-proof pollution device from the top end of the packing box, the second opening of the tank body and the sucker rod are sealed through the sealing piece, so that the oil in the tank body is prevented from leaking out from the second opening, the oil in the tank body cavity can flow out from the liquid collecting opening to be recovered, and particularly, a recovery pipeline can be connected to the liquid collecting opening, and the oil flowing out from the liquid collecting opening is recovered through the recovery pipeline, so that the oil cannot leak out, environmental pollution caused by puncture leakage is prevented, the risk of fire is reduced, the safety of a working place is improved, and the recovery of energy is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural view of a packing box device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of another packing box device according to an embodiment of the present invention;
fig. 3 is a partial enlarged view of a in fig. 1.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of a puncture and leakage preventing device and a packing box device according to an embodiment of the present invention, as shown in fig. 1, the embodiment of the present invention provides a tank body 1 having a hollow cavity, two opposite ends of the tank body 1 are respectively provided with a first opening 11 and a second opening 12 for penetrating a sucker rod, and the first opening 11 and the second opening 12 are both communicated with the hollow cavity 13; the first opening 11 is connected with the top end of the packing box 3 in a sealing way, the second opening 12 is provided with a sealing element 4, and the sealing element 4 is sealed in a gap between the sucker rod 2 and the second opening 12; the side wall of the tank body 1 is provided with a liquid collecting port 14 which is communicated with the hollow cavity 13 and the outside.
In the oil extraction process, the puncture and leakage preventing pollution device is connected to the top end of the packing box 3, the sucker rod 2 penetrates through the tank body 1 of the puncture and leakage preventing pollution device, the sucker rod 2 and the second opening 12 of the tank body 1 are sealed through the sealing piece 4, and the first opening 11 of the tank body 1 and the top end of the packing box 3 can be connected through welding or threads to achieve sealing connection. When the packing in the packing box 3 is worn and corroded to cause the puncture and leakage phenomenon, the oil flows into the tank 1 of the puncture and leakage pollution prevention device from the top end of the packing box 3, and as the second opening 12 of the tank 1 is sealed with the sucker rod 2 through the sealing element 4, the oil entering the tank 1 cannot leak out from the second opening 12, a recovery pipeline can be connected at the liquid receiving port 14, the oil flows into the recovery pipeline from the cavity 13 of the tank so as to recover the oil, the oil cannot leak out, and the environment of a workplace is protected, wherein the liquid receiving port 14 is generally arranged on one side, closer to the first opening 11, of the side wall of the tank 1, namely, the liquid receiving port 14 is positioned at a lower position on the tank 1, so that most of the oil in the tank 1 is discharged through the liquid receiving port 14 for recovery.
Specifically, an oil baffle plate 5 is arranged in the hollow cavity 13, one end of the oil baffle plate 5 is connected with the inner wall of the tank 1, and the other end of the oil baffle plate 5 extends towards the inside of the tank and has a gap with the sucker rod 2 penetrating through the hollow cavity 13; the oil baffle 5 is positioned between the liquid receiving port 14 and the second opening 12. In the oil extraction process, when packing abrasion corrosion in the packing box 3 occurs a puncture leakage phenomenon, the oil baffle 5 has a certain buffer effect on oil entering the tank body 1, and the sealing element 4 between the second opening 12 and the sucker rod 2 is prevented from being damaged due to overlarge pressure of oil rising, so that the tightness between the second opening 12 and the sucker rod 2 is ensured, oil is prevented from leaking out from the second opening 12, a gap exists between the oil baffle 5 and the sucker rod 2, the oil baffle 5 can not rub the sucker rod 2, and smooth movement of the sucker rod 2 is ensured.
As shown in fig. 2, as an alternative embodiment, the oil baffle 5 may be annular, and when the oil entering the tank 1 rises above the oil baffle 5, the oil may flow down along the spiral oil baffle 5 to the liquid receiving port 14, so as to facilitate smooth flow of the oil.
Optionally, the oil baffle 5 is annular, and the height of the outer edge of the oil baffle 5 in the axial direction along the tank 1 is higher than the height of the inner edge of the oil baffle 5. When the oil entering the tank body 1 rises above the oil baffle plate 5, the oil can flow along the high position of the outer edge of the oil baffle plate 5 to the low position of the inner edge of the oil baffle plate 5, and then flows down to the liquid collecting port 14 from a gap between the oil baffle plate 5 and the sucker rod 2, so that the oil can flow down smoothly. Optionally, the oil baffle 5 can be also designed into a plurality of plates welded on the inner wall of the tank body, the plurality of plates are arranged in a plurality of layers on the inner wall of the tank body 1, gaps are reserved among the plates in each layer, the plurality of plates in different layers are staggered, the oil liquid entering the tank body is effectively guaranteed to be buffered by the plurality of plates, and the oil liquid rushing up to the upper parts of the plurality of plates flows down from the gaps and flows to the liquid receiving port 14 for recovery;
specifically, a liquid guide pipeline 7 is arranged at the liquid receiving port 14, and the liquid guide pipeline 7 is communicated with the liquid receiving port 14; the liquid guide pipeline 7 extends to the first opening 11, and the axial direction of the liquid guide pipeline 7 forms an acute angle with the pipe wall direction of the tank body 1. In order to facilitate the connection between the liquid receiving port 14 and the recovery pipeline, a liquid guiding pipeline 7 may be welded or screwed at the liquid receiving port 14, wherein the axial direction of the liquid guiding pipeline 7 forms an acute angle with the direction from the second opening 12 to the first opening 11 of the tank body 1, that is, the liquid guiding pipeline 7 is inclined obliquely downwards, so that the oil in the tank body 1 can smoothly flow to the recovery pipeline along the liquid guiding pipeline 7.
Specifically, the liquid receiving port 14 is also provided with a valve 6 for controlling the on-off of the liquid receiving port 14. The valve 6 is connected with the liquid receiving port 14, and the valve 6 is used for controlling the connection and disconnection of the inside and the outside of the liquid receiving port 14. When the oil in the tank body 1 is required to be recovered, the valve 6 is opened, so that the inside and outside of the liquid receiving port 14 are communicated, when the oil is not recovered, the valve 6 is closed, the inside and outside of the liquid receiving port 14 are disconnected, the oil in the tank body 1 is blocked from flowing out of the liquid receiving port 14, and the controllability of the recovered oil is realized, wherein the valve 6 adopts a manual control valve, the connection is simple and convenient, and the valve 6 can be connected to the liquid receiving port 14 through the liquid guide pipeline 7.
Fig. 3 is a partial enlarged view of a in fig. 1, as shown in fig. 3, the top of the tank body 1 includes a pipe body 161 and an upper cover 162, a first end of the pipe body 161 is connected with the tank body 1, a second end of the pipe body 161 is a second opening 12, the upper cover 162 is arranged at the second end of the pipe body 161 in a covering manner, and the upper cover 162 is provided with a through hole through which the sucker rod 2 can pass; a retainer ring 163 extending in a direction parallel to the axial direction of the can body 1 is provided on the inner side of the top of the upper cover 162; the sealing member comprises a sleeve 41, one end of the sleeve 41 is provided with a flange 42 protruding out of the outer wall of the sleeve 41, the sleeve 41 is sleeved on the inner side of the inner wall of the pipe body 161, the flange 42 is clamped between the upper cover 162 and the second end of the pipe body, and the retaining ring 163 is tightly attached to the inner wall of the sleeve. Wherein, upper cover 162 accessible threaded connection mode connecting pipe body 161, the flange 42 of sleeve pipe 41 is pressed from both sides tightly between body 161 and upper cover 162 for the fixed firm of rubber circle, the outer wall of sleeve pipe 41 of rubber circle pastes in the inner wall of body 161, realize the sealed between sleeve pipe 41 and the body 161, when sucker rod 2 passes second opening 12, the inner wall of sleeve pipe 41 is hugged closely in the outer wall of sucker rod 2, make sucker rod 2 pass through sealed between rubber circle and the body 161, optionally, still can set up the packing between sleeve pipe 41 and sucker rod 2 of retaining ring 163 lower part, the packing closely laminates between sleeve pipe 41 and sucker rod 2 under the extrusion of retaining ring 163, play the double seal effect to the space between sleeve pipe 41 and the sucker rod 2.
Specifically, the tank 1 includes a first portion 15 and a second portion 16 that are in butt joint, the oil baffle 5, the first opening 11, and the liquid receiving port 14 are located in the first portion, and the sealing member 4 and the second opening 12 are located in the second portion. The tank body 1 is divided into two parts, namely a first part 15 and a second part 16, corresponding structures are respectively arranged on the first part 15 and the second part 16, and then the first part 15 and the second part 16 are butted, and a welding or threaded connection mode can be adopted; this design facilitates structural arrangements in the first portion 15 and the second portion 16, such as welding the oil deflector 5 in the first portion 15 and threading the sleeve in the second portion 16.
Specifically, the first opening 11 is connected to a threaded joint 8, and the threaded joint 8 is used for screwing the packing box 3. Wherein, first opening 11 is used for sealing connection packing box 3's top, accessible welded fastening connection, but inconvenient dismantlement changes and prevents thorn leakage pollution device, consequently, set up screwed joint 8 in first opening 11 department, screwed joint 8 can pass through threaded connection with packing box 3, make things convenient for the dismouting between thorn leakage pollution device and packing box 3, accessible welded connection between screwed joint 8 and the first opening 11 to make firm in connection between screwed joint 8 and the first opening 11.
The embodiment of the invention provides a puncture-leakage-preventing pollution device, which is provided with a tank body 1 with a hollow cavity, wherein a first opening 11 and a second opening 12 for penetrating a sucker rod are respectively arranged at two opposite ends of the tank body 1, and the first opening 11 and the second opening 12 are communicated with the hollow cavity 13; the first opening 11 is connected with the top end of the packing box 3 in a sealing way, the second opening 12 is provided with a sealing element 4, and the sealing element 4 is sealed in a gap between the sucker rod 2 and the second opening 12; the side wall of the tank body 1 is provided with a liquid collecting port 14 which is communicated with the hollow cavity 13 and the outside. In the oil recovery process, when packing abrasion corrosion in the packing box causes the puncture leakage phenomenon, oil flows into the tank body of the puncture leakage prevention pollution device from the top end of the packing box, the second opening of the tank body and the sucker rod are sealed through the sealing piece, so that the oil in the tank body is prevented from leaking out from the second opening, the oil in the tank body cavity can flow out from the liquid collecting port to be recovered, in particular, the recovery pipeline can be connected to the liquid collecting port, the oil flowing out from the liquid collecting port is recovered through the recovery pipeline, so that the oil can not leak out, environmental pollution caused by puncture leakage is prevented, the risk of fire disaster is reduced, the safety of a working place is improved, and the recovery of energy is realized.
As shown in fig. 1, the present invention further provides a packing box device, which comprises a packing box 3, and further comprises the puncture and leakage preventing device, wherein the first opening 11 of the puncture and leakage preventing device is connected to the top end of the packing box 3 in a sealing manner. The structure and principle of the puncture-leakage-preventing device are the same as those of the above embodiments, and are not described herein.
The embodiment of the invention provides a packing box device, which comprises a packing box 3 and the puncture and leakage pollution prevention device, wherein a first opening 11 of the puncture and leakage pollution prevention device is connected to the top end of the packing box 3 in a sealing way. When the packing in the packing box is worn and corroded to cause the puncture leakage phenomenon, oil flows into the tank body of the puncture leakage prevention pollution device from the top end of the packing box, the second opening of the tank body and the sucker rod are sealed through the sealing piece, so that the oil in the tank body is prevented from leaking out from the second opening, the oil in the tank body cavity can flow out from the liquid collecting port to be recovered, in particular, the recovery pipeline can be connected to the liquid collecting port, the oil flowing out from the liquid collecting port is recovered through the recovery pipeline, the oil can not leak out, the environmental pollution caused by puncture leakage is prevented, the risk of fire disaster is reduced, the safety of a workplace is improved, and the recovery of energy is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. An anti-puncture and anti-leakage device, comprising:
the oil pumping device comprises a tank body with a hollow cavity, wherein a first opening and a second opening for penetrating the sucker rod are respectively arranged at two opposite ends of the tank body, and the first opening and the second opening are communicated with the hollow cavity; the first opening is connected with the top end of the packing box in a sealing way, a sealing piece is arranged at the second opening, and the sealing piece is sealed in a gap between the sucker rod and the second opening;
a liquid receiving port which is communicated with the hollow cavity and the outside is arranged on the side wall of the tank body;
a liquid guide pipeline is arranged at the liquid receiving port and is communicated with the liquid receiving port;
the liquid guide pipeline extends out of the first opening, and the axial direction of the liquid guide pipeline and the pipe wall direction of the tank body form an acute angle;
the top of the tank body comprises a pipe body and an upper cover, the first end of the pipe body is connected with the tank body, the second end of the pipe body is provided with the second opening, the upper cover is arranged at the second end of the pipe body, and the upper cover is provided with a through hole through which the sucker rod can pass;
a retainer ring extending in a direction parallel to the axial direction of the tank body is arranged on the inner side of the top of the upper cover;
the sealing element comprises a sleeve, one end of the sleeve is provided with a flange protruding out of the outer wall of the sleeve, the sleeve is sleeved on the inner side of the inner wall of the pipe body, the flange is clamped between the upper cover and the second end of the pipe body, and the retainer ring is tightly attached to the inner wall of the sleeve;
an oil baffle plate is arranged in the hollow cavity, one end of the oil baffle plate is connected with the inner wall of the tank body, and the other end of the oil baffle plate extends towards the inside of the tank body and has a gap with a sucker rod penetrating through the hollow cavity; the oil baffle is positioned between the liquid receiving port and the second opening;
the oil baffle is spirally wound on the inner wall of the tank body; the oil baffle is annular, and the height of the outer edge of the oil baffle in the axial direction of the tank body is higher than the height of the inner edge of the oil baffle.
2. The puncture-proof and leakage-proof device according to claim 1, wherein the liquid receiving port is further provided with a valve for controlling the on-off of the liquid receiving port.
3. The puncture and leakage prevention device according to claim 1, wherein,
the tank body comprises a first part and a second part which are in butt joint, the oil baffle, the first opening and the liquid receiving opening are positioned in the first part, and the sealing element and the second opening are positioned in the second part.
4. The puncture and leakage prevention device according to claim 1, wherein,
the first opening is connected with a threaded joint, and the threaded joint is used for being connected with the packing box in a threaded mode.
5. A packing box assembly, includes the packing box, its characterized in that still includes:
a puncture and leakage prevention device as set forth in any one of claims 1 to 4; the first opening of the puncture-leakage-preventing pollution device is connected to the top end of the packing box in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190512.4A CN108222878B (en) | 2016-12-21 | 2016-12-21 | Puncture-leakage-preventing pollution device and packing box device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190512.4A CN108222878B (en) | 2016-12-21 | 2016-12-21 | Puncture-leakage-preventing pollution device and packing box device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222878A CN108222878A (en) | 2018-06-29 |
| CN108222878B true CN108222878B (en) | 2024-03-01 |
Family
ID=62650929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611190512.4A Active CN108222878B (en) | 2016-12-21 | 2016-12-21 | Puncture-leakage-preventing pollution device and packing box device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222878B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100243233A1 (en) * | 2009-03-30 | 2010-09-30 | Eduardo Salloum | Oilfield Stuffing Box |
| CN202249903U (en) * | 2011-10-20 | 2012-05-30 | 郭国杰 | Leakproof environment-friendly protective device for oil production well |
| US20120223001A1 (en) * | 2011-03-04 | 2012-09-06 | Baldwin Filters, Inc. | Filter and center tube with helical fin |
| CN203808908U (en) * | 2014-04-17 | 2014-09-03 | 中国石油化工股份有限公司 | Anti-piercing-leakage device for well mouth packing box |
| CN205297441U (en) * | 2016-01-28 | 2016-06-08 | 刘娟 | Screw seal device for oil pumping unit |
| CN206554856U (en) * | 2016-12-21 | 2017-10-13 | 中国石油天然气股份有限公司 | Anti-pricked polluting device and packing box device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201802337U (en) * | 2010-03-26 | 2011-04-20 | 李红宾 | Energy-saving pumping well head sealer |
| CN205638320U (en) * | 2016-04-21 | 2016-10-12 | 中国石油天然气股份有限公司 | Well head seals ware anti -pollution device |
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2016
- 2016-12-21 CN CN201611190512.4A patent/CN108222878B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100243233A1 (en) * | 2009-03-30 | 2010-09-30 | Eduardo Salloum | Oilfield Stuffing Box |
| US20120223001A1 (en) * | 2011-03-04 | 2012-09-06 | Baldwin Filters, Inc. | Filter and center tube with helical fin |
| CN202249903U (en) * | 2011-10-20 | 2012-05-30 | 郭国杰 | Leakproof environment-friendly protective device for oil production well |
| CN203808908U (en) * | 2014-04-17 | 2014-09-03 | 中国石油化工股份有限公司 | Anti-piercing-leakage device for well mouth packing box |
| CN205297441U (en) * | 2016-01-28 | 2016-06-08 | 刘娟 | Screw seal device for oil pumping unit |
| CN206554856U (en) * | 2016-12-21 | 2017-10-13 | 中国石油天然气股份有限公司 | Anti-pricked polluting device and packing box device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108222878A (en) | 2018-06-29 |
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