CN205063902U - Paraffin scraper and scrape wax device - Google Patents
Paraffin scraper and scrape wax device Download PDFInfo
- Publication number
- CN205063902U CN205063902U CN201520665234.8U CN201520665234U CN205063902U CN 205063902 U CN205063902 U CN 205063902U CN 201520665234 U CN201520665234 U CN 201520665234U CN 205063902 U CN205063902 U CN 205063902U
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- Prior art keywords
- paraffin
- oil pipe
- cutting ring
- pressure
- impact head
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- 239000012188 paraffin wax Substances 0.000 title claims abstract description 131
- 239000001993 wax Substances 0.000 title claims abstract description 28
- 238000007790 scraping Methods 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 4
- 241000549173 Celastrus scandens Species 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 40
- 230000008021 deposition Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Auxiliary Devices For Machine Tools (AREA)
Abstract
The utility model provides a paraffin scraper and scrape wax device, wherein, this paraffin scraper includes: movably places the barrel in oil pipe, be equipped with at the outside cover of barrel and scrape the wax device, scrape the outer wall and oil pipe inner wall phase -match of wax device, separate last cavity and lower cavity for mutual airtight isolation with the oil pipe inner chamber, be provided with pressure adjustment assembly on the barrel, a pressure for adjusting the pressure and the lower cavity of the last cavity of oil pipe inner chamber, make the pressure of barrel at last cavity, the combined action of the pressure of lower cavity and the gravity of barrel makes progress or the downstream along oil pipe down, thereby put into the paraffin scraper behind the oil pipe under oil pipe internal pressure's effect, the inside wax work of scraping of oil pipe can be accomplished automatically to the paraffin scraper, paraffin removing with chemical method method and the physics among the prior art has been solved, the problem of the with high costs and paraffin removal inefficiency of paraffin removal method that machinery wax removal method exists.
Description
Technical field
The utility model relates to oil-well drilling equipment technical field, in particular to a kind of paraffin scraper and wax scraping apparatus.
Background technology
In field of petroleum exploitation, because the temperature and pressure of crude oil from shaft bottom inflow surface is constantly declining, the wax in crude oil constantly can separate out condensation in this process, blocking oil extraction pipeline, and then oil well load is increased, not only affect well recovery output, the application life of oil pipeline can be reduced simultaneously.Thus need effectively to clear up wax deposition in oil recovery process.At present, existing wax removal processing mode has several:
1) paraffin removing with chemical method method:
In oil recovery process, in crude oil, be mixed into wax-proofing agent, stop wax partial crystallization to go out, and then prevent tubing wax.Because the method needs to use a large amount of wax-proofing agents, therefore with high costs.
2) physics, mechanical paraffin removal method
In oil recovery process, adopting heating oil pipe, glass lined tubing or coating tubing to prevent tubing wax, or adopt paraffin scraper, paraffin bit etc. to remove wax deposition, there is the inefficient defect of paraffin removal in the method.
For the paraffin removal method existed in prior art, the with high costs and inefficient technical problem of paraffin removal, not yet proposes effective solution at present.
Utility model content
Main purpose of the present utility model is to provide a kind of paraffin scraper and wax scraping apparatus, to solve the with high costs and inefficient problem of paraffin removal of the paraffin removal method existed in prior art.
To achieve these goals, according to an aspect of the present utility model, provide a kind of paraffin scraper, comprising: cylindrical shell, be placed in oil pipe movably; Paraffin cutting ring, is set in cylindrical shell outside, and wherein, outer wall and the tube inner wall of paraffin cutting ring match, and oil pipe inner chamber is divided into upper chamber and the lower chambers of mutual airtight isolation; Pressure-regulating device, is arranged on cylindrical shell, for the pressure of the pressure and lower chambers that regulate the upper chamber of oil pipe inner chamber, cylindrical shell is moved under the acting in conjunction of the gravity of the pressure of upper chamber, the pressure of lower chambers and cylindrical shell up or down along oil pipe.
Further, pressure-regulating device comprises: bypass valve, to be arranged on cylindrical shell and to be positioned at above paraffin cutting ring, and wherein, the upper chamber of oil pipe inner chamber is communicated with lower chambers by the inner chamber of cylindrical shell or closed by bypass valve; Upper impact head, telescopically is arranged on the upper end of cylindrical shell, for being opened by bypass valve after by downthrust thus the upper chamber of oil pipe inner chamber being communicated with lower chambers; Lower impact head, telescopically is arranged on the lower end of closed hollow cylindrical shell, for being closed by bypass valve after by downthrust thus the upper chamber of oil pipe inner chamber and lower chambers being closed;
Further, pressure-regulating device also comprises: the first reset device, is arranged in impact head, gets back to initial position for making impact head after upper impact head is by downthrust; Second reset device, is arranged in lower impact head, gets back to initial position for making lower impact head after lower impact head is by downthrust.
Further, the first reset device and the second reset device are spring, and wherein, upper impact head and lower impact head all have Step Shaft, and spring is set on Step Shaft respectively.
Further, paraffin cutting ring comprises: upper paraffin cutting ring and lower paraffin cutting ring; Wherein, between upper paraffin cutting ring and lower paraffin cutting ring, there is spacing.
Further, the two ends of upper paraffin cutting ring and lower paraffin cutting ring are respectively arranged with taper surface.
Further, upper paraffin cutting ring and lower paraffin cutting ring all scalable adjustment diametrically.
According to another aspect of the present utility model, provide a kind of wax scraping apparatus, comprise: the paraffin scraper of above-mentioned any one content and with paraffin scraper with the use of catcher, catcher comprises: clamp, wherein, clamp is provided with two panels, hingedly in the middle part of two panels clamp can mutually rotate, and the front end of two panels clamp forms joint end; Elastic component, to be strutted towards direction away from each other the rear end of two clamps between the rear end being arranged on two panels clamp; Sleeve, is set on two panels clamp slidably.
Further, also comprise; Push mechanism, is arranged on the front end of clamp, and wherein, the rear end of push mechanism and sleeve connection, for when by paraffin scraper downthrust, promote sleeve sleeve is separated with clamp backward.
Further, the joint end of the front end of two panels clamp has bayonet socket, and wherein, the upper impact head of bayonet socket inner shape and paraffin scraper matches impact head is entered and remains in bayonet socket.
According to paraffin scraper and the wax scraping apparatus of the utility model embodiment, wherein, this paraffin scraper comprises the cylindrical shell be placed on movably in oil pipe; Be provided with paraffin cutting ring in cylindrical shell outer cover, outer wall and the tube inner wall of paraffin cutting ring match, and oil pipe inner chamber are divided into upper chamber and the lower chambers of mutual airtight isolation; Cylindrical shell is provided with pressure-regulating device, for the pressure of the pressure and lower chambers that regulate the upper chamber of oil pipe inner chamber, cylindrical shell is moved up or down along oil pipe under the acting in conjunction of the gravity of the pressure of upper chamber, the pressure of lower chambers and cylindrical shell, thus after paraffin scraper being put into oil pipe under the effect of oil pipe internal pressure, paraffin scraper can complete the paraffin cutting work of oil pipe inside automatically, solves paraffin removing with chemical method method of the prior art and physics, the with high costs and inefficient problem of paraffin removal of paraffin removal that mechanical paraffin removal method exists.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The Figure of description forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to the optional paraffin scraper of the utility model; And
Fig. 2 is the structural representation according to the optional catcher of the utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1. cylindrical shell, 2. paraffin cutting ring, paraffin cutting ring on 21., 22. times paraffin cutting rings, 3. pressure-regulating devices, 31. bypass valve, impact head on 32,33. times impact head, 34. first return units, 35. second return units, 36. Step Shafts, 4. clamp, 41. bayonet sockets, 5. elastic component, 6. sleeve, 7. push mechanism.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
The utility model scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
According to the paraffin scraper of the utility model embodiment, as shown in Figure 1, comprising: cylindrical shell 1, paraffin cutting ring 2 and pressure-regulating device 3, cylindrical shell 1 is placed in oil pipe movably; It is outside that paraffin cutting ring 2 is set in cylindrical shell 1, and wherein, outer wall and the tube inner wall of paraffin cutting ring 2 match, and oil pipe inner chamber are divided into upper chamber and the lower chambers of mutual airtight isolation; Pressure-regulating device 3 is arranged on cylindrical shell 1, for the pressure of the pressure and lower chambers that regulate the upper chamber of oil pipe inner chamber, cylindrical shell 1 is moved under the acting in conjunction of the gravity of the pressure of upper chamber, the pressure of lower chambers and cylindrical shell 1 up or down along oil pipe.
According to the paraffin scraper of the utility model embodiment, paraffin cutting ring 2 is set by cylindrical shell 1 outer cover be placed in activity in oil pipe, and the outer wall of paraffin cutting ring 2 and tube inner wall are matched, oil pipe inner chamber is divided into upper chamber and the lower chambers of mutual airtight isolation; Cylindrical shell 1 is provided with pressure-regulating device 3, for the pressure of the pressure and lower chambers that regulate the upper chamber of oil pipe inner chamber, cylindrical shell 1 is moved up or down along oil pipe under the acting in conjunction of the gravity of the pressure of upper chamber, the pressure of lower chambers and cylindrical shell 1, thus after paraffin scraper being put into oil pipe under the effect of oil pipe internal pressure, paraffin scraper can complete the paraffin cutting work of oil pipe inside automatically, solves paraffin removing with chemical method method of the prior art and physics, the with high costs and inefficient problem of paraffin removal of paraffin removal that mechanical paraffin removal method exists.
During concrete enforcement, pressure-regulating device 3 comprises: bypass valve 31, and bypass valve 31 to be arranged on cylindrical shell 1 and to be positioned at above paraffin cutting ring 2, and wherein, the upper chamber of oil pipe inner chamber is communicated with lower chambers by the inner chamber of cylindrical shell 1 or closed by bypass valve 31; Upper impact head 32 telescopically is arranged on the upper end of cylindrical shell 1, make the upper chamber of oil pipe inner chamber and lower chambers pressure reach balance for bypass valve 31 being opened thus the upper chamber of oil pipe inner chamber is communicated with lower chambers after by downthrust, thus make cylindrical shell 1 descending along oil pipe inner chamber under the effect of himself gravity; Lower impact head 33 telescopically is arranged on the lower end of closed hollow cylindrical shell 1, for bypass valve 31 cutting out after by downthrust thus the upper chamber of oil pipe inner chamber and lower chambers being closed mutually, thus upstroke under making the effect of the inner gas-liquid pressure of cylindrical shell 1 lower chambers.Cylindrical shell 1 is in upstroke process, and the wax deposition be attached on tube inner wall is cleaned out by paraffin cutting ring 2, and the liquid on paraffin scraper top is discharged well head.
After bypass valve 31 opens or closes by upper impact head 32 and lower impact head again, need to reset in time thus can cylindrical shell 1 next time upstream or downstream time bypass valve 31 is opened or closed, therefore, upper impact head 32 is provided with the first reset device 34, for making impact head 32 get back to initial position after upper impact head 32 is by downthrust; Lower impact head 33 being provided with the second reset device 35, getting back to initial position for making lower impact head 33 after lower impact head 33 is by downthrust.Alternatively, first reset device 34 and the second reset device 35 are spring, wherein, upper impact head 32 and lower impact head 33 are respectively arranged with Step Shaft 36, upper impact head 32 can upwards eject by the Step Shaft 36 that the spring housing in upper impact head 32 is located at upper end, and lower impact head 33 can eject downwards by the Step Shaft 36 that the spring housing in lower impact head 33 is located at lower end.
In order to strengthen paraffin cutting effect, paraffin cutting ring 2 comprises: upper paraffin cutting ring 21 and lower paraffin cutting ring 22; Wherein, between upper paraffin cutting ring 21 and lower paraffin cutting ring 22, tool is at regular intervals, thus when cylindrical shell 1 moves upward along oil pipe inner chamber, upper paraffin cutting ring 21 carries out a paraffin cutting, the wax deposition that upper paraffin cutting ring 21 is not cleaned out can be proceeded secondary cleaning by lower paraffin cutting ring 22, thus make paraffin scraper in a paraffin cutting stroke, actually complete twice paraffin cutting, effectively enhance the effect of paraffin cutting.
In order to when paraffin scraper arrives on well head, the wax deposition of cleaning on paraffin cutting ring 2, liquid or other impurity is made more easily to discharge well head, alternatively, taper surface is respectively arranged with at the two ends of upper paraffin cutting ring 21 and lower paraffin cutting ring 22, taper surface structure by the wax deposition of cleaning on paraffin cutting ring 2, liquid or other impurity to turning up, thus can discharge well head.
In order to adapt to the inner diameter of different oil pipe, the scope of application of expansion paraffin scraper, the all scalable adjustment diametrically of upper paraffin cutting ring 21 and lower paraffin cutting ring 22, thus can use again to corresponding size according to the diameter adjustment of the diameter of different oil pipe by upper paraffin cutting ring 21 and lower paraffin cutting ring 22.
Paraffin scraper needs to adopt special trap tool to be regained by paraffin scraper after completing whole wax removal operation arrival well head.According to another embodiment of the present utility model, provide a kind of wax scraping apparatus, this wax scraping apparatus comprises: the paraffin scraper of above-mentioned any one content and with paraffin scraper with the use of catcher, this catcher is used for paraffin scraper to regain.Particularly, as shown in Figure 2, catcher comprises: clamp 4, elastic component 5 and sleeve 6, wherein, clamp 4 is provided with two panels, hingedly in the middle part of two panels clamp 4 can mutually rotate, the front end of two panels clamp 4 forms joint end, form bayonet socket 41 inside the joint end opened, wherein, the upper impact head 32 of bayonet socket 41 inner shape and paraffin scraper matches impact head 32 is entered and remains in bayonet socket 41.To be strutted towards direction away from each other the rear end of two clamps 4 between the rear end that elastic component 5 is arranged on two panels clamp 4, thus when paraffin scraper arrives the joint end of two panels clamp 4 front end, paraffin scraper is clamped by joint end, and alternatively, elastic component 5 is torsion spring.Sleeve 6 is set in the rear end of two panels clamp 4 slidably, is opened by the bayonet socket 41 of the joint end of two panels clamp 4 front end, prepares to receive paraffin scraper.The front end of clamp 4 arranges push mechanism 7, and wherein, the rear end of push mechanism 7 is connected with sleeve 6, for when by paraffin scraper downthrust, promoted backward by sleeve 6 sleeve 6 is separated with clamp 4, clamp 4 is in the effect of elastic component 5, and the joint end of its front end is closed clamps withdrawal by paraffin scraper.
The catcher of the utility model embodiment is by arranging the hinged clamp of two panels 4, and make the joint end of clamp 4 front end and upper impact head 32 mating shapes of paraffin scraper upper end, on clamp 4, be provided with corresponding elastic component and trigger unit simultaneously, make paraffin scraper when up arrival well head and trigger unit collide, under the effect of elastic component, the upper impact head 32 of paraffin scraper is clamped thus is regained by paraffin scraper by the joint end of clamp 4, structure is simple, be easy to operation, the wax removal work of whole oil pipe can have been coordinated well.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a paraffin scraper, is characterized in that, comprising:
Cylindrical shell (1), is placed in oil pipe movably;
Paraffin cutting ring (2), be set in described cylindrical shell (1) outside, wherein, outer wall and the described tube inner wall of described paraffin cutting ring (2) match, and described oil pipe inner chamber are divided into upper chamber and the lower chambers of mutual airtight isolation;
Pressure-regulating device (3), be arranged on described cylindrical shell (1), for the pressure of the pressure and described lower chambers that regulate the described upper chamber of described oil pipe inner chamber, described cylindrical shell (1) is moved under the acting in conjunction of the gravity of the pressure of described upper chamber, the pressure of described lower chambers and described cylindrical shell (1) up or down along described oil pipe.
2. paraffin scraper according to claim 1, is characterized in that, described pressure-regulating device (3) comprising:
Bypass valve (31), be arranged on described cylindrical shell (1) go up and be positioned at described paraffin cutting ring (2) top, wherein, the described upper chamber of described oil pipe inner chamber to be communicated with described lower chambers by the inner chamber of described cylindrical shell (1) or to close by described bypass valve (31);
Upper impact head (32), telescopically is arranged on the upper end of described cylindrical shell (1), for being opened by described bypass valve (31) after by downthrust thus the described upper chamber of described oil pipe inner chamber being communicated with described lower chambers;
Lower impact head (33), telescopically is arranged on the lower end of described closed hollow cylindrical shell (1), for being closed by described bypass valve (31) after by downthrust thus the described upper chamber of described oil pipe inner chamber and described lower chambers being closed.
3. paraffin scraper according to claim 2, is characterized in that, described pressure-regulating device (3) also comprises:
First reset device (34), is arranged on described upper impact head (32), for impact head (32) on described by downthrust after make described upper impact head (32) get back to initial position;
Second reset device (35), is arranged on described lower impact head (33), gets back to initial position for making described lower impact head (33) after described lower impact head (33) is by downthrust.
4. paraffin scraper according to claim 3, is characterized in that,
Described first reset device (34) and described second reset device (35) are spring, wherein, described upper impact head (32) and described lower impact head (33) all have Step Shaft (36), and described spring is set on described Step Shaft (36) respectively.
5. paraffin scraper according to claim 1, is characterized in that, described paraffin cutting ring (2) comprising:
Upper paraffin cutting ring (21) and lower paraffin cutting ring (22);
Wherein, between described upper paraffin cutting ring (21) and described lower paraffin cutting ring (22), there is spacing.
6. paraffin scraper according to claim 5, is characterized in that,
The two ends of described upper paraffin cutting ring (21) and described lower paraffin cutting ring (22) are respectively arranged with taper surface.
7. the paraffin scraper according to any one of claim 5 or 6, is characterized in that,
Described upper paraffin cutting ring (21) and lower paraffin cutting ring (22) all scalable adjustment diametrically.
8. a wax scraping apparatus, comprising: the paraffin scraper described in any one of claim 1 to 7 and with described paraffin scraper with the use of catcher, it is characterized in that, described catcher comprises:
Clamp (4), wherein, described clamp (4) is provided with two panels, and clamp described in two panels (4) middle part is hinged can rotate mutually, and the front end of clamp described in two panels (4) forms joint end;
Elastic component (5), to be strutted towards direction away from each other the rear end of clamp described in two panels (4) between the rear end being arranged on clamp described in two panels (4);
Sleeve (6), is set on clamp described in two panels (4) slidably.
9. wax scraping apparatus according to claim 8, is characterized in that, also comprises;
Push mechanism (7), be arranged on the front end of described clamp (4), wherein, the rear end of described push mechanism (7) is connected with described sleeve (6), for when by described paraffin scraper downthrust, sleeve (6) is promoted backward described sleeve (6) is separated with described clamp (4).
10. wax scraping apparatus according to claim 8, is characterized in that,
The joint end of the front end of clamp described in two panels (4) has bayonet socket (41), wherein, the upper impact head (32) of described bayonet socket (41) inner shape and described paraffin scraper matches to make described upper impact head (32) enter and remain in described bayonet socket (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665234.8U CN205063902U (en) | 2015-08-28 | 2015-08-28 | Paraffin scraper and scrape wax device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665234.8U CN205063902U (en) | 2015-08-28 | 2015-08-28 | Paraffin scraper and scrape wax device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205063902U true CN205063902U (en) | 2016-03-02 |
Family
ID=55390470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520665234.8U Active CN205063902U (en) | 2015-08-28 | 2015-08-28 | Paraffin scraper and scrape wax device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205063902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386158A (en) * | 2018-05-16 | 2018-08-10 | 威海鸿通管材股份有限公司 | The electronic de-waxing apparatus of oil pipe |
| CN111472721A (en) * | 2020-06-02 | 2020-07-31 | 罗林峰 | Dredging equipment for preventing and treating water damage of mine |
-
2015
- 2015-08-28 CN CN201520665234.8U patent/CN205063902U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386158A (en) * | 2018-05-16 | 2018-08-10 | 威海鸿通管材股份有限公司 | The electronic de-waxing apparatus of oil pipe |
| CN108386158B (en) * | 2018-05-16 | 2023-08-15 | 威海鸿通管材股份有限公司 | Electric paraffin removal device for oil pipe |
| CN111472721A (en) * | 2020-06-02 | 2020-07-31 | 罗林峰 | Dredging equipment for preventing and treating water damage of mine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |