CN211924146U - A pit shaft viscosity reduction device for high carbon wax oil recovery well - Google Patents
A pit shaft viscosity reduction device for high carbon wax oil recovery well Download PDFInfo
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- CN211924146U CN211924146U CN202020650452.5U CN202020650452U CN211924146U CN 211924146 U CN211924146 U CN 211924146U CN 202020650452 U CN202020650452 U CN 202020650452U CN 211924146 U CN211924146 U CN 211924146U
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- Prior art keywords
- pipe
- lateral wall
- oil
- transfer line
- water pump
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 24
- 230000009467 reduction Effects 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000011084 recovery Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 49
- 239000010779 crude oil Substances 0.000 abstract description 25
- 230000000994 depressogenic effect Effects 0.000 abstract description 12
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a pit shaft viscosity reduction device for high carbon wax oil recovery well, including oil production pipe, pit shaft and water pump, oil production pipe's lateral wall cover is equipped with the annular sleeve pipe, annular sleeve pipe's lateral wall top intercommunication has the transfer line, the inside wall of pit shaft and the lateral wall sliding connection of transfer line, the delivery end intercommunication of water pump has the fluid-discharge tube, the lateral wall top intercommunication of transfer line has the even distribution's that quantity is no less than four connecting pipes, the connecting pipe is kept away from the one end fixedly connected with flange of transfer line; the viscosity reducer is discharged into a liquid conveying pipe through a water pump and then enters the annular sleeve, the high-carbon wax crude oil wax-proof pour-point depressant flows to the gradually-expanded sleeve along the inner wall of the annular sleeve under the action of gravity, and then the high-carbon wax crude oil wax-proof pour-point depressant enters the position near the bottom end of the oil production pipe and is fully mixed with the crude oil at the bottom end of the oil production pipe, so that the viscosity of the crude oil near the bottom end of the oil production pipe is effectively reduced, and the oil extraction efficiency is improved.
Description
Technical Field
The utility model relates to an oil development technical field specifically is a pit shaft viscosity reduction device for high carbon wax oil recovery well.
Background
Oil extraction refers to the act of excavating and extracting oil in places where oil is stored. During the process of oil production, oil and gas flow from the reservoir to the well bottom and rise from the well bottom to the well top. The crude oil is viscous, so that the viscosity reduction treatment needs to be carried out on the viscous crude oil during exploitation, and the exploitation is facilitated. In the process of crude oil exploitation and gathering and transportation, the light components continuously escape along with the reduction of temperature and pressure, and wax in the crude oil is separated out in the form of crystals, gathered and deposited on metal surfaces of oil well walls, oil pipeline walls, related equipment and the like, namely the wax precipitation phenomenon occurs. The wax deposition of the oil well in the oil field development process seriously influences the normal production of the oil well, and becomes a problem which is generally existed and urgently needed to be solved by each oil field production unit. The high-carbon wax crude oil wax-proof pour-point depressant is a hydrophobic modified polycarboxylate polymer pour-point depressant and has a good viscosity-reducing effect.
At present, a common viscosity reducer is directly injected into crude oil through one side of a shaft and is far away from the bottom end of an oil pumping pipe, so that the viscosity reducer is difficult to mix with the crude oil near the oil pumping pipe, and the effect of the viscosity reducer is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pit shaft viscosity reduction device for high carbon wax oil recovery well to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pit shaft viscosity reduction device for high carbon wax oil recovery well, includes oil production pipe, pit shaft and water pump, oil production pipe's lateral wall cover is equipped with the annular casing, annular casing's lateral wall top intercommunication has the transfer line, the inside wall of pit shaft and the lateral wall sliding connection of transfer line, the play water end intercommunication of water pump has the fluid-discharge tube, the end intercommunication of intaking of water pump has the liquid suction pipe, the lateral wall top intercommunication of transfer line has quantity for being no less than four evenly distributed's connecting pipe, the one end fixedly connected with flange of transfer line is kept away from to the connecting pipe, the one end that the water pump was kept away from to the fluid-discharge tube is linked together through flange.
As further preferable in the present technical solution: the bottom of the annular sleeve is communicated with a gradually-expanding sleeve, a spiral groove is formed in the oil production pipe, and a spiral heating coil is installed in the spiral groove.
As further preferable in the present technical solution: the utility model discloses a well drilling device, including oil production pipe, solid fixed ring's one end fixedly connected with ring frame, the bracing piece that the central point that uses the ring frame is symmetry central symmetry is two to the lateral wall welding of oil production pipe, solid fixed ring's lateral wall fixedly connected with dead lever, solid fixed ring's one end fixedly connected with ring frame is kept away from to the dead lever, the inside wall fixedly connected with quantity of ring frame is two, the one end that the ring frame was.
As further preferable in the present technical solution: the utility model discloses a transfusion device, including the support pole, the lateral wall bottom fixedly connected with connecting rod of support pole, the one end welding that the support pole was kept away from to the connecting rod has the lantern ring, the lateral wall of transfer line is located to the inside wall cover of lantern ring, the through-hole has been seted up at the top of ring frame, the through-hole is run through to the one end of transfer line.
As further preferable in the present technical solution: one end of the liquid pumping pipe, which is far away from the water pump, is communicated with a liquid storage tank, the top of the liquid storage tank is communicated with an inlet pipe, and the bottom of the outer side wall of the liquid storage tank is communicated with a viscosity reducer discharge pipe.
As further preferable in the present technical solution: the switch is installed to the lateral wall of liquid reserve tank, the electrical property output of switch respectively with water pump and spiral heating coil's electrical property input electric connection.
Compared with the prior art, the beneficial effects of the utility model are that: the viscosity reducer is discharged into a liquid conveying pipe through a water pump and then enters the annular sleeve, the high-carbon wax crude oil wax-proof pour-point depressant flows to the gradually-expanded sleeve along the inner wall of the annular sleeve under the action of gravity, and then the high-carbon wax crude oil wax-proof pour-point depressant enters the position near the bottom end of the oil production pipe and is fully mixed with the crude oil at the bottom end of the oil production pipe, so that the viscosity of the crude oil near the bottom end of the oil production pipe is effectively reduced, and the oil extraction efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the oil production pipe of the present invention;
fig. 3 is a schematic top view of the ring frame of the present invention;
fig. 4 is a side view of the connecting tube of the present invention.
In the figure: 1. a production string; 2. a wellbore; 3. a fixing ring; 4. fixing the rod; 5. a ring frame; 6. a support bar; 7. a connecting rod; 8. a collar; 9. a through hole; 10. a transfusion tube; 11. an annular sleeve; 12. a diverging sleeve; 13. connecting pipes; 14. a flange; 15. a water pump; 16. a liquid discharge pipe; 17. a liquid pumping pipe; 18. a liquid storage tank; 19. an inlet tube; 20. a switch; 21. a helical groove; 22. a helical heating coil; 23. and a viscosity reducer discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a pit shaft viscosity reduction device for high carbon wax oil recovery well, including oil production pipe 1, pit shaft 2 and water pump 15, oil production pipe 1's lateral wall cover is equipped with annular casing 11, annular casing 11's lateral wall top intercommunication has transfer line 10, the inside wall of pit shaft 2 and the lateral wall sliding connection of transfer line 10, water pump 15's play water end intercommunication has fluid-discharge tube 16, water pump 15's the end intercommunication of intaking has liquid suction pipe 17, the lateral wall top intercommunication of transfer line 10 has the even distribution's of quantity for being no less than four connecting pipe 13, the one end fixedly connected with flange 14 that transfer line 10 was kept away from to connecting pipe 13, the one end that water pump 15 was kept away from to fluid-discharge tube 16 is linked together.
In this embodiment, specifically: the bottom of the annular sleeve 11 is communicated with the divergent sleeve 12, the spiral groove 21 is formed in the oil production pipe 1, the spiral heating coil 22 is arranged inside the spiral groove 21, the viscosity reducer is discharged into the position close to the bottom end of the oil production pipe 1 through the annular sleeve 11 and the divergent sleeve 12, the spiral heating coil 22 is used for heating the oil production pipe 1, and the crude oil viscosity reduction efficiency is improved.
In this embodiment, specifically: the welding of oil production pipe 1's lateral wall has solid fixed ring 3, gu fixed ring 3's lateral wall fixedly connected with dead lever 4, solid fixed ring 3's one end fixedly connected with ring frame 5 is kept away from to dead lever 4, the inside wall fixedly connected with quantity of ring frame 5 is two bracing piece 6 that the central point that uses ring frame 5 is symmetry, bracing piece 6 keeps away from the one end of ring frame 5 and welds in oil production pipe 1's lateral wall, through above setting, when oil production pipe 1 moves down, dismantle flange 14 between fluid-discharge tube 16 and the connecting pipe 13, oil production pipe 1 descends in-process and drives solid fixed ring 3, dead lever 4, ring frame 5, connecting rod 7, lantern ring 8 and transfer line 10 descend, make annular casing 11 and gradual expansion casing 12 synchronous descent, guarantee the injection efficiency of viscosity breaker, after descending, connecting pipe 13 and fluid-discharge tube 16 of corresponding height.
In this embodiment, specifically: the lateral wall bottom fixedly connected with connecting rod 7 of bracing piece 6, the one end welding that bracing piece 6 was kept away from to connecting rod 7 has a lantern ring 8, and the lateral wall of transfer line 10 is located to the inside wall cover of lantern ring 8, and through-hole 9 has been seted up at the top of ring frame 5, and through-hole 9 is run through to the one end of transfer line 10, and lantern ring 8 is used for supplementary fixed transfer line 10.
In this embodiment, specifically: one end intercommunication that the liquid suction pipe 17 kept away from water pump 15 has liquid reserve tank 18, the top intercommunication of liquid reserve tank 18 has inlet tube 19, the lateral wall bottom intercommunication of liquid reserve tank 18 has thinner discharge pipe 23, the inside of liquid reserve tank 18 has high carbon wax crude oil wax control pour point depressant through the injection of inlet tube 19, water pump 15 passes through liquid suction pipe 17 and extracts the inside high carbon wax crude oil wax control pour point depressant of liquid reserve tank 18, through fluid-discharge tube 16, connecting pipe 13 and transfer line 10 discharge into annular sleeve 11, and then near the bottom of putting into oil production pipe 1 through gradually-expanding sleeve 12, carry out intensive mixing with near the crude oil of oil production pipe 1 bottom.
In this embodiment, specifically: the switch 20 is installed on the lateral wall of the liquid storage tank 18, the electrical output end of the switch 20 is electrically connected with the electrical input ends of the water pump 15 and the spiral heating coil 22 respectively, and the switch 20 controls the opening and closing of the water pump 15 and the spiral heating coil 22 respectively.
Working principle or structure principle, when in use, high-carbon wax crude oil wax-proof pour point depressant is injected into the liquid storage tank 18 through the inlet pipe 19, the water pump 15 extracts the high-carbon wax crude oil wax-proof pour point depressant in the liquid storage tank 18 through the liquid pumping pipe 17, the high-carbon wax crude oil wax-proof pour point depressant is discharged into the annular sleeve 11 through the liquid discharge pipe 16, the connecting pipe 13 and the liquid conveying pipe 10, the high-carbon wax crude oil wax-proof pour point depressant is further discharged into the vicinity of the bottom end of the oil production pipe 1 through the gradually expanding sleeve 12 and is fully mixed with crude oil near the bottom end of the oil production pipe 1, the switch 20 controls the spiral heating coil 22 to be opened to heat the oil production pipe 1 to assist in viscosity reduction of crude oil, when the oil production pipe 1 needs to move downwards, the flange 14 between the liquid discharge pipe 16 and the connecting pipe 13 is detached, the oil production pipe 1 drives the fixing ring 3, the fixing rod 4, the, after lowering, the connecting pipe 13 and the drain pipe 16 at the corresponding heights are connected by the flange 14.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a pit shaft viscosity reduction device for high carbon wax oil recovery well, includes oil production pipe (1), pit shaft (2) and water pump (15), its characterized in that: the lateral wall cover of oil production pipe (1) is equipped with annular sleeve (11), the lateral wall top intercommunication of annular sleeve (11) has transfer line (10), the inside wall of pit shaft (2) and the lateral wall sliding connection of transfer line (10), the play water end intercommunication of water pump (15) has fluid-discharge tube (16), the end intercommunication of intaking of water pump (15) has liquid suction pipe (17), the lateral wall top intercommunication of transfer line (10) has connecting pipe (13) of quantity for being no less than four evenly distributed, the one end fixedly connected with flange (14) of transfer line (10) are kept away from in connecting pipe (13), the one end that water pump (15) were kept away from in fluid-discharge tube (16) is linked together through flange (14) and connecting pipe (13).
2. The wellbore viscosity reduction device for high-carbon wax production wells according to claim 1, wherein: the bottom of the annular sleeve (11) is communicated with a divergent sleeve (12), a spiral groove (21) is formed in the oil production pipe (1), and a spiral heating coil (22) is arranged in the spiral groove (21).
3. The wellbore viscosity reduction device for high-carbon wax production wells according to claim 1, wherein: the outer wall welding of oil production pipe (1) has solid fixed ring (3), the lateral wall fixedly connected with dead lever (4) of solid fixed ring (3), one end fixedly connected with ring frame (5) of solid fixed ring (3) are kept away from in dead lever (4), the inside wall fixedly connected with quantity of ring frame (5) is two bracing piece (6) that the central point that uses ring frame (5) is symmetry center symmetry, the one end that ring frame (5) was kept away from in bracing piece (6) welds in the lateral wall of oil production pipe (1).
4. The wellbore viscosity reduction device for high-carbon wax production wells according to claim 3, wherein: the utility model discloses a transfusion system, including the lateral wall of bracing piece (6), the lateral wall bottom fixedly connected with connecting rod (7) of bracing piece (6), the one end welding that bracing piece (6) were kept away from in connecting rod (7) has the lantern ring (8), the lateral wall of transfer line (10) is located to the inside wall cover of lantern ring (8), through-hole (9) have been seted up at the top of ring frame (5), through-hole (9) are run through to the one end of transfer line (10).
5. The wellbore viscosity reduction device for high-carbon wax production wells according to claim 1, wherein: one end of the liquid pumping pipe (17) far away from the water pump (15) is communicated with a liquid storage tank (18), the top of the liquid storage tank (18) is communicated with an inlet pipe (19), and the bottom of the outer side wall of the liquid storage tank (18) is communicated with a viscosity reducer discharge pipe (23).
6. The wellbore viscosity reduction device for high-carbon wax production wells according to claim 5, wherein: switch (20) are installed to the lateral wall of liquid reserve tank (18), the electrical property output of switch (20) respectively with water pump (15) and spiral heating coil (22) electrical property input end electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650452.5U CN211924146U (en) | 2020-04-26 | 2020-04-26 | A pit shaft viscosity reduction device for high carbon wax oil recovery well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650452.5U CN211924146U (en) | 2020-04-26 | 2020-04-26 | A pit shaft viscosity reduction device for high carbon wax oil recovery well |
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| Publication Number | Publication Date |
|---|---|
| CN211924146U true CN211924146U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020650452.5U Expired - Fee Related CN211924146U (en) | 2020-04-26 | 2020-04-26 | A pit shaft viscosity reduction device for high carbon wax oil recovery well |
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| CN (1) | CN211924146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654941A (en) * | 2021-09-01 | 2021-11-16 | 西南石油大学 | Multifunctional teaching experiment system and method for measuring pressure in petroleum field |
-
2020
- 2020-04-26 CN CN202020650452.5U patent/CN211924146U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654941A (en) * | 2021-09-01 | 2021-11-16 | 西南石油大学 | Multifunctional teaching experiment system and method for measuring pressure in petroleum field |
| CN113654941B (en) * | 2021-09-01 | 2024-04-05 | 西南石油大学 | Multifunctional teaching experiment system and method for measuring pressure in petroleum field |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201113 |