CN110593796A - Sealing device and method for recovering petroleum from polished rod body - Google Patents
Sealing device and method for recovering petroleum from polished rod body Download PDFInfo
- Publication number
- CN110593796A CN110593796A CN201910964965.5A CN201910964965A CN110593796A CN 110593796 A CN110593796 A CN 110593796A CN 201910964965 A CN201910964965 A CN 201910964965A CN 110593796 A CN110593796 A CN 110593796A
- Authority
- CN
- China
- Prior art keywords
- filter
- rod body
- polish rod
- oil
- filtering
- 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.)
- Pending
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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
-
- 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
- E21B33/08—Wipers; Oil savers
Abstract
The invention provides a sealing device and a method for recovering petroleum from a polish rod body. The device comprises a first filter pipe, a first filter element and a collecting container, wherein the first filter pipe can be sleeved on the rod body of the polished rod; the first filter element is arranged on the inner wall of the first filter pipe and can surround the polish rod body so as to filter oil on the polish rod body; the collection container is capable of collecting the oil filtered by the first filter. The method comprises the step of recovering petroleum by adopting the device. The beneficial effects of the invention can include: saving cost, green environmental protection and optimizing the device.
Description
Technical Field
The invention relates to the technical field of sealing, in particular to a sealing device and a method for recovering petroleum from a polish rod body.
Background
At present, when a polish rod of an oil pumping unit is sealed, a polish rod sealer is mostly arranged at the wellhead of the oil pumping unit. However, even if a polished rod sealer is installed on the wellhead equipment of the pumping unit during the pumping process of the pumping unit, the situation that the petroleum adhered to the polished rod is carried to the outside of the sealer through the sealer sometimes occurs, and the environment is polluted while resource waste is caused.
Disclosure of Invention
In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, it is an object of the present invention to provide a sealing device and method for recovering oil from a polish rod body to prevent oil adhered to the polish rod body from being carried outside the sealer.
In order to accomplish the above object, an aspect of the present invention provides a sealing apparatus for recovering oil from a polish rod body.
The sealing device for recovering the petroleum from the polish rod body can comprise a first filter pipe, a first filter element and a collecting container, wherein the first filter pipe can be sleeved on the rod body of the polish rod; the first filter element is arranged on the inner wall of the first filter pipe and can surround the polish rod body so as to filter oil on the polish rod body; the collection container is capable of collecting the oil filtered by the first filter.
In an exemplary embodiment of the present invention, a first filter groove capable of receiving a first filter member may be provided on an inner wall of the first filter pipe.
In an exemplary embodiment of the present invention, the apparatus may further include a second filter disposed on an inner wall of the second filter and capable of surrounding the polish rod body, and a second filter pipe disposed above the first filter pipe and capable of being fitted over the polish rod body.
In an exemplary embodiment of the present invention, the apparatus may further include a sealing cover disposed above the second filtering pipe, the sealing cover being capable of covering the upper pipe opening of the second filtering pipe, and the second filtering member being disposed on an inner wall of the upper pipe opening of the second filtering pipe.
In an exemplary embodiment of the present invention, a second filter groove capable of receiving a second filter member may be provided on an inner wall of the second filter pipe.
In an exemplary embodiment of the present invention, the apparatus may further include a fastener capable of relatively fixing a position between the second filtering pipe and the polish rod.
In an exemplary embodiment of the invention, the fastening element is arranged between the first filter pipe and the second filter pipe and is fixedly connected with the second filter pipe, and the fastening element can be fastened on the rod body of the polish rod.
In an exemplary embodiment of the present invention, the first filtering pipe may be disposed in the collection container, and the collection container may be provided with a hollow hole matched with the polish rod body at upper and lower sides thereof to allow the polish rod to pass through the collection container.
In an exemplary embodiment of the invention, the apparatus further comprises a third filter tube and a third filter element, wherein the third filter tube is disposed below the collection container and is capable of being fitted over the polish rod body; the third filtering pipe is detachably connected with the collecting container; the third filter element is arranged on the inner wall of the upper pipe orifice of the third filter pipe and can surround the polish rod body.
In an exemplary embodiment of the present invention, a third filter groove capable of accommodating a third filter member is provided on an inner wall of the third filter pipe.
In an exemplary embodiment of the invention, the device is fixedly connected to a wellhead tree tee.
Another aspect of the invention provides a method of recovering oil from a polished rod body.
The method comprises recovering oil by using the sealing device.
Compared with the prior art, the beneficial effects of the invention can include: saving cost, green environmental protection and optimizing the device.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 shows a schematic diagram of a sealing device for recovering oil from a polish rod body in an exemplary embodiment of the invention;
FIG. 2 shows a schematic structural view of a shim in an exemplary embodiment of the invention;
description of the main reference numerals:
1. polished rod, 2, gland, 3, second filter tube, 4, second filter tank, 5, second filter, 6, collecting container, 7, first filter tube, 8, first filter tank, 9, first filter, 10, third filter tube, 11, third filter tank, 12, third filter, 13, elastic fastener, 14, external screw thread, 15, internal thread, 16, fastening pipe, 17, manhole, 18, oil-out, 19, sealing cap, 20, bolt fastening hole, 21, circulation hole.
Detailed Description
Hereinafter, the sealing apparatus and method for recovering oil from a polish rod body according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments, and the first, second and third appearing in the present invention do not indicate a sequential order but are used only for distinguishing one from another.
Fig. 1 is a schematic structural view of a sealing device for recovering oil from a polished rod body, which is a schematic longitudinal sectional view.
In one aspect, the present invention provides a sealing device for recovering oil from a polish rod body.
In an exemplary embodiment of the present invention, as shown in fig. 1, the sealing device may include a first filtering tube 7, a first filtering member 9, and a collecting container 6, wherein,
the first filtering pipe 7 may be fitted over the shaft of the polish rod 1, and the first filtering member 9 may be disposed on an inner wall of the first filtering pipe 7 and may surround the shaft of the polish rod 1. When the polish rod moves up and down continuously, the first filtering piece can filter the oil stuck on the polish rod body. The first filter element 9 may include a gasket, as shown in fig. 2, the gasket may include a two-part gasket, the large hole of the gasket is a bolt fixing hole 20, the small hole of the gasket is a flow hole 21 for facilitating heat dissipation of the gasket and upward and downward flow of oil, and the gasket may be fixed with a bolt by a built-in nut or a retainer.
Further, in order to ensure the position of the first filtering member 9 in the first filtering pipe 7 above the polish rod 1 is stable, a first filtering groove 8 may be provided on the inner wall of the first filtering pipe 7 for accommodating the first filtering member 9. Further, in order to facilitate the replacement of the first filter member 9, a first filter tank 8 for accommodating the first filter member 9 may be provided on an inner wall of a lower nozzle of the first filter pipe 7.
The collection container can be used for collecting the oil that first filter member filtered, and the collection container is seal structure and appearance can be cuboid, square or cylinder. Holes matched with the polish rod body can be arranged at the upper part and the lower part of the collection container so that the polish rod can pass through the collection container.
In this embodiment, the collecting container 6 may include a collecting box, the first filtering pipe 7 and the first filtering member 9 may be located inside the collecting container 6, the first filtering pipe 7 may be connected to the top of the collecting container 6, when the first filtering pipe 7 and the first filtering member 9 are located inside the collecting container 6, the collecting container 6 may be provided with an access hole 17, when the first filtering member 9 needs to be replaced, the first filtering member 9 may be replaced through the access hole 17, in order to facilitate the replacement of the first filtering member 9, the access hole 17 may be disposed near the first filtering member 9, and meanwhile, the arrangement of the access hole 17 is convenient for cleaning the collecting container 6. Meanwhile, the collecting container 6 can also be provided with an oil outlet 18, the oil outlet 18 is used for discharging the oil in the collecting container 6, the collection of an oil sample is facilitated, and the oil outlet 18 can also be provided with a sealing cap 19 for preventing the oil from leaking and causing pollution. When the amount of the collected petroleum in the collecting container is less, the petroleum is collected by the collecting container and then is transported in a centralized way, and when the amount of the collected petroleum in the collecting container is larger, the petroleum can be directly connected with a petroleum pipeline for direct transportation. The bottom of the collection container may optionally be sealed in a manner comprising: sealing wax, bolt and cover.
In this embodiment, in order to further filter and clean the oil adhered on the polish rod, the sealing device can be further provided with a second filter element 5 and a second filter pipe 3 which is arranged above the first filter pipe 7 and can be sleeved on the rod body of the polish rod 1, wherein,
the second filter 5 may be disposed on an inner wall of the second filtering pipe 3 and may surround the polish rod 1. After the polish rod is filtered by the first filter, the second filter can perform secondary filtration on the residual oil on the polish rod if the residual oil still exists on the polish rod. The second filter element 5 may include a gasket, as shown in fig. 2, the gasket may include a two-part gasket, the large hole of the gasket is a bolt fixing hole 20, the small hole of the gasket is a circulation hole 21 for facilitating heat dissipation of the gasket and oil circulation up and down, and the gasket may be fixed with a bolt by a built-in nut or a retainer.
Further, in order to ensure the position stability of the second filtering member 5 in the second filtering pipe 3 above the polish rod 1, a second filtering groove 4 may be provided on the inner wall of the second filtering pipe 3 for accommodating the second filtering member 5. Still further, in order to facilitate the replacement of the second filter member 5, a second filter tank 4 for accommodating the second filter member 5 may be provided on an inner wall of an upper nozzle of the second filter tube 3.
The wall of the second filtering pipe 3 may further be provided with an oil flowing channel, which may form an upper opening on the bottom surface of the second filtering tank 4, and a lower opening on the outer pipe wall of the second filtering pipe 3 below the second filtering tank 4 or on the lower end surface of the second filtering pipe 3. Wherein, the upper opening of the oil flow pipeline can face to the flow hole on the gasket, so that the filtered oil can be smoothly discharged. Further, the lower opening of the oil flow channel can be connected with the collecting container 6 through a pipeline, so that the filtered oil enters the collecting container, and the pipeline can be made of corrosion-resistant materials with high strength.
Meanwhile, a sealing cover 2 can be further arranged on the second filtering pipe 3, the sealing cover 2 can cover an upper pipe opening of the second filtering pipe 3, the top of the sealing cover 2 can be hexagonal, the sealing cover 2 and the second filtering pipe 3 can be detachably connected, and further the sealing cover 2 and the second filtering pipe 3 are in threaded connection.
Sealed lid 2 with can dismantle the connection between the second filter tube 3 for can dismantle at will between the two, it is right when we need to filter piece 5 is changed to the second, pull down sealed lid 2 and can filter piece 5 to the second and change, and simultaneously, the setting of sealed lid 2 can also prevent that oil from filtering piece 5 from the second and spilling.
In this embodiment, in order to improve the fastening effect of the polish rod, the sealing device for recovering oil from the polish rod body may further include a fastening member, which may be disposed between the first and second filtering pipes and may be fixedly connected to the first filtering pipe, wherein,
the fastener may include an elastic fastener 13 directly fitted on the polish rod body and a fastening tube 16 fitted outside the elastic fastener 13. Further, the outside of the elastic fastening member 13 may be provided with an external thread 14, while the inside of the fastening tube 16 may be provided with an internal thread 15. The external thread 14 may be engaged with the internal thread 15, and the thread forms of the internal thread 15 and the external thread 14 may be formed in a shape that is tighter the more upward the fastening tube 16, and the elastic fastening member 13 are rotated.
When needing to change second filter 5, can rotate fastening pipe 16, fastening pipe 16 rises on elastic fastener 13 through external screw thread 14 rotation to extrusion elastic fastener 13, elastic fastener 13 further contracts, in order to realize the fastening of polished rod 1, then opens sealed lid 2, changes second filter 5, changes back reverse rotation fastening pipe 16 again after finishing changing, makes fastening pipe 16 rotatory decline, and elastic fastener 13 relaxs the fastening to polished rod 1. Further, the material of choice for both the resilient fastener 13 and the fastening tube 16 may include a material that resists corrosion.
In this embodiment, the second filtering pipe may not be directly connected to the collecting tank, and at this time, the second filtering pipe, the elastic fastening member and the collecting tank are sequentially connected.
In this embodiment, in order to further filter and clean the oil adhered on the polish rod, the sealing device for recovering oil from the polish rod body may further be provided with a third filter element 12, and a third filter tube 10 disposed below the collection container 6 and capable of being sleeved on the rod body of the polish rod 1, wherein,
the third filter element 12 may be disposed on the inner wall of the third filter tube 10 and may surround the rod of the polish rod 1, the third filter element 12 may include a gasket, as shown in fig. 2, the gasket may include a gasket formed by combining two parts, a large hole on the gasket is a bolt fixing hole 20, a small hole is a flow hole 21 for assisting heat dissipation of the gasket and upward and downward flow of oil, and the gasket may be fixed with a bolt by a built-in nut or a retainer.
Further, in order to ensure the stable position of the third filtering member 12 on the polish rod 1 in the third filtering pipe 10, a third filtering groove 11 may be provided on the inner wall of the third filtering pipe 10 for accommodating the third filtering member 12. The third filtering conduit 10 can be removably connected to the collecting container 6. Further, the third filtering pipe 10 may be detachably connected to the collecting container 6, and still further, the third filtering pipe 10 may be screw-coupled to the collecting container 6. Meanwhile, a third filtering tank 11 may be provided on the inner wall of the third filtering pipe 10 where the pipe opening is connected with the collecting container 6.
Before the polish rod 1 is filtered by the first filter element 9, the third filter element 12 can filter the oil on the rod body of the polish rod 1 in advance, and the wall of the third filter tube 10 can be further provided with an oil flow passage which can form an upper opening on the bottom surface of the third filter tank 11, and form a lower opening on the outer tube wall of the third filter tube 10 below the third filter tank 11 or on the lower end surface of the third filter tube 10. Wherein, the upper opening of the oil flowing pore canal can face the oil flowing pore on the gasket, so that the filtered oil can be smoothly discharged. Furthermore, the lower opening of the oil flowing pore passage can be connected with an externally arranged collector through a pipeline, so that filtered oil enters the externally arranged collector, and the pipeline can be made of a corrosion-resistant material with higher strength.
The removable connection between the third filtering conduit 10 and the collecting container 6 allows the latter to be removed at will, when we need to replace the third filtering element 12, the third filtering conduit 10 is removed and the third filtering element 12 is replaced. Under the condition that the third filter pipe 10 is fixedly connected with the collecting container 6 and the third filter piece 12 is positioned at the lower pipe opening of the third filter pipe 10, the worker can also directly replace the third filter piece 12, and the replacement is simple and convenient.
In this embodiment, the materials that may be selected for the first, second, and third filter elements include materials that are corrosion resistant and have relatively high strength.
In order to increase the sealing performance of the sealing device for recovering oil from the polish rod body, the device for recovering oil from the polish rod body can further comprise packing sets, and the packing sets are positioned at the upper part and the lower part.
In this embodiment, the sealing device may be fixedly connected or screwed with a tree tee at the wellhead.
Another aspect of the invention provides a method of recovering oil from a polished rod body.
In another exemplary embodiment of the present invention, the method may include recovering oil using the sealing device provided in the previous exemplary embodiment.
In summary, the advantages of the sealing device and method for recovering oil from the polish rod body of the present invention can include:
(1) through setting up first filter and collecting container, can collect the oil of sticky tape on the polished rod, reduce well head and well site pollution, reduce staff's intensity of labour.
(2) Through setting up second filter tube and second and filtering the piece, further avoid the oil to be taken out the sealer, can improve the sealed degree of polished rod.
(3) Through setting up the fastener for the fastening of polished rod is simple and convenient, and fastening effect is good.
(4) Through setting up sealed lid, can be more convenient filter the piece to the second and change, the practicality is strong.
(5) Through setting up third filter tube and third and filtering piece for reduce the oil of adhesive tape before the polished rod gets into the collecting box, avoid the waste of oil.
(6) Through with third filter and collection container threaded connection, can make third filter tube and collection container separation, be convenient for to the change of third filter.
(7) Through setting up the manhole, become more convenient when first filter wearing and tearing seriously need change, the washing of the collecting box of also being convenient for.
(8) Through setting up oil-out and sealing cap, can regularly discharge the oil in the collecting box, directly take crude oil sample from the oil-out, prolonged the life of polished rod, avoided the oil pollution that the well head oil spout caused.
In the description of the present invention, it is to be understood that the positional indications or positional relationships are based on those shown in the drawings and are for the purpose of facilitating the description of the present invention, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A sealing device for recovering oil from a polish rod body, characterized in that it comprises a first filtering tube, a first filtering element and a collecting container, wherein,
the first filter pipe can be sleeved on the rod body of the polish rod;
the first filter element is arranged on the inner wall of the first filter pipe and can surround the polish rod body so as to filter oil on the polish rod body;
the collection container is capable of collecting the oil filtered by the first filter.
2. The sealing device for recovering oil from a polish rod body according to claim 1, wherein a first filter groove capable of accommodating a first filter is provided on an inner wall of the first filter pipe.
3. The sealing device for recovering oil from a polish rod body according to claim 1, further comprising a second filter element and a second filter tube disposed above said first filter tube and capable of being fitted over the polish rod body, the second filter element being disposed on an inner wall of the second filter tube and capable of surrounding the polish rod body.
4. The apparatus of claim 3 further comprising a sealing cap disposed over the second filter tube, the sealing cap adapted to cover the upper end of the second filter tube, the second filter element being disposed on the inner wall of the upper end of the second filter tube.
5. The sealing device for recovering oil from a polished rod body of claim 3, further comprising a fastener capable of relatively fixing the position between the second filtering tube and the polished rod.
6. The apparatus of claim 5 wherein the fastener is disposed between the first and second filter tubes and is fixedly connected to the second filter tube, the fastener being capable of being fastened to the body of the polish rod.
7. The sealing device for recovering oil from polish rod bodies of claim 1, wherein said first filtering tube is disposed in said collection container, said collection container being provided with holes matching with polish rod bodies both above and below to allow polish rods to pass through said collection container.
8. The sealing device for recovering oil from a polish rod body of claim 1, wherein said device is fixedly connected to a wellhead tree tee.
9. A method of recovering oil from a polished rod body, comprising recovering oil using the apparatus of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910964965.5A CN110593796A (en) | 2019-10-11 | 2019-10-11 | Sealing device and method for recovering petroleum from polished rod body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910964965.5A CN110593796A (en) | 2019-10-11 | 2019-10-11 | Sealing device and method for recovering petroleum from polished rod body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110593796A true CN110593796A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910964965.5A Pending CN110593796A (en) | 2019-10-11 | 2019-10-11 | Sealing device and method for recovering petroleum from polished rod body |
Country Status (1)
| Country | Link |
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| CN (1) | CN110593796A (en) |
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| US5526877A (en) * | 1995-01-05 | 1996-06-18 | Winz; Frank S. | Oil well head cleaning system |
| CN203430483U (en) * | 2013-08-29 | 2014-02-12 | 曲皓 | Clean-keeping device of sucker rod for borehole operation |
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Application publication date: 20191220 |
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| RJ01 | Rejection of invention patent application after publication |