CN203515492U - Fireflood well sand-gas-preventing oil pumping device - Google Patents
Fireflood well sand-gas-preventing oil pumping device Download PDFInfo
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- CN203515492U CN203515492U CN201320547856.1U CN201320547856U CN203515492U CN 203515492 U CN203515492 U CN 203515492U CN 201320547856 U CN201320547856 U CN 201320547856U CN 203515492 U CN203515492 U CN 203515492U
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- sand
- intervalve
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Abstract
The utility model provides a fireflood well sand-gas-preventing oil pumping device which comprises a sand-preventing oil well pump (1) and a sand setting type gas anchor (2). The sand setting type gas anchor (2) comprises an inner pipe (25) and an outer pipe (22), the open upper end of the inner pipe (25) is in sealed fixed connection with a fixing valve assembly (14), the lower end of the inner pipe (25) is closed, the upper end and the lower end of the outer pipe (22) are both closed, a first annular cavity is formed between the outer pipe (22) and the inner pipe (25), the outer pipe (22) is provided with a hole channel (221), the inner pipe (25) is provided with sucking inlets (27), and the sucking inlets (27) are formed below the hole channel (221). According to the fireflood well sand-gas-preventing oil pumping device, oil-gas separation can be carried out on crude oil before the crude oil enters the pump, sand blocking can be prevented after the crude oil enters the pump, and normal production of a fireflood high-gas-contained high-sand-production producing well is achieved.
Description
Technical field
The utility model relates to oil production equipment technical field, particularly a kind of fireflood well sand control gas-tight oil rig.
Background technology
Combustion in situ is to utilize various sparking mode that the oil reservoir in gas injection well is lighted, and continues to inject air or oxygen in oil reservoir, makes oil reservoir burning constantly spread expansion, and crude oil is driven to producing well.Because fireflood gas injection well constantly injects large quantity of air, producing well is also often exhaust shaft, gas production is high, and some fire flood block oil well itself just exists the problem of shaking out, and uses the sand-preventing pump of heavy anti-one to maintain oil well and normally produce when not adopting fireflood exploitation.But turn after fireflood production, part sand producer tail gas amount raises gradually, the situation of shaking out is aggravation to some extent also, forms the compound contradiction of the high gassiness that shakes out, and existing sand-preventing pump exists larger technical limitation aspect gas-tight, a large amount of gas enters after pump, reduced pump efficiency, affected oil well and normally produce, and along with the prolongation of fireflood production time, the tail gas amount of producing well can strengthen gradually, and the problem of gases affect pump efficiency becomes increasingly conspicuous.Existing gas anchor can not be used in combination with the sand-preventing pump of heavy anti-one, can only be used in combination with common sand-preventing pump, although can alleviate oil well pump, be subject to gases affect, because fireflood is shaked out seriously, oil well output is low, part sand grains is difficult to take to ground with liquid stream, still has the problem of sand card.That is to say, existing technology or sand control capability are good, or gas-tight performance is good, are difficult to the two organic assembling and use.
Utility model content
The bad technical problem of sand control gas-tight effect while being used in combination in order to solve existing sand-preventing pump and gas anchor, the utility model provides a kind of fireflood well sand control gas-tight oil rig.This fireflood well sand control gas-tight oil rig can make crude oil before entering pump, carry out Oil-gas Separation, enter sands-proof check after pump, realizes the shake out normal production of producing well of the high gassiness of fireflood.
The utility model for solving the technical scheme of its technical problem employing is: a kind of fireflood well sand control gas-tight oil rig, comprises sand-proof oil-well pump and the sand settling type gas anchor that is arranged on sand-proof oil-well pump bottom; Sand-proof oil-well pump comprises pump pillar and is arranged on the standing valve assembly in pump pillar; Sand settling type gas anchor comprises that inner tube and fixed cover be located at the outer tube outside inner tube, open upper end and the standing valve assembly of inner tube is sealedly and fixedly connected, the lower end closed of inner tube, the two ends up and down of outer tube are all sealed, between outer tube and inner tube, form the first toroidal cavity, outer tube is provided with and is communicated with the outside of outer tube and the duct of this first toroidal cavity, and inner tube is provided with and is communicated with the inside of inner tube and the intake of this first toroidal cavity, and intake is positioned at the below in duct.
Between inner and outer tubes, be also arranged with intervalve, between inner tube and intervalve, form the second toroidal cavity, between intervalve and outer tube, form the 3rd toroidal cavity, the upper end of intervalve and pump pillar are sealedly and fixedly connected, the 4th toroidal cavity forming between pump pillar and standing valve assembly is communicated with the second toroidal cavity, and the lower end of intervalve is lower than the lower end of inner tube.
Intervalve is also provided with intake, and the 3rd toroidal cavity is successively by being arranged on intake on intervalve and intake being on inner pipe set and the internal communication of inner tube.
Between inner tube and intervalve, be provided with packing ring, packing ring is provided with the first through hole of horizontal direction, intake on intervalve and the intake arranging are on inner pipe communicated with by the first through hole, packing ring is provided with the second through hole of vertical direction, and the 4th toroidal cavity is by the internal communication of the lower end of the second through hole and intervalve.
Between intervalve and outer tube, the outer wall of intervalve is provided with flight, and flight is between duct and intake.
The lower end of intervalve is lower than the lower end of outer tube, and the lower end of intervalve is connected with plug.
The lower end of outer tube is lower than the lower end of inner tube, the lower end of outer tube is provided with and automatically unloads sand valve, automatically unload sand valve and comprise valve wall, valve wall comprises interior valve cylinder and is set in the outer valve cylinder outside interior valve cylinder, the upper end of interior valve cylinder is communicated with the 3rd toroidal cavity, the lower end of interior valve cylinder is provided with valve ball, is provided with the spring of restoring force can be provided to valve ball between interior valve cylinder and outer valve cylinder.
Automatically unload sand valve and be arranged on outside the lower end of outer tube, outside the lower end of outer tube, be provided with pocket, automatically unload sand valve and be arranged in pocket.
The upper end of sand settling type gas anchor is provided with top connection, and the upper end of intervalve is sealedly and fixedly connected by top connection and pump pillar.
In the pump pillar of sand-proof oil-well pump, be provided with the pump barrel being fixedly connected with standing valve assembly, be provided with plunger in pump barrel, pump barrel length is less than the length of plunger.
The beneficial effects of the utility model are: this fireflood well sand control gas-tight oil rig can make crude oil before entering pump, carry out Oil-gas Separation, enter sands-proof check after pump, realize the shake out normal production of producing well of the high gassiness of fireflood.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, fireflood well sand control gas-tight oil rig described in the utility model is described in further detail.
Fig. 1 is the assembling drawing of fireflood well sand control gas-tight oil rig.
Fig. 2 is the sectional view of A-A direction in Fig. 1.
Fig. 3 is the partial enlarged view at A position in Fig. 1.
Fig. 4 is the partial enlarged view at B position in Fig. 1.
1. sand-proof oil-well pumps wherein, 11. plungers, 12. pump barrels, 13. pump pillars, 131. the 4th toroidal cavities, 14. standing valve assemblies, 2. sand settling type gas anchor, 21. top connections, 22. outer tubes, 221. ducts, 222. the 3rd toroidal cavities, 23. intervalves, 231. second toroidal cavities, 24. flights, 25. inner tubes, 26.O type circle, 27. intakes, 28. unload sand valve automatically, 281. valve walls, 282. interior valve cylinders, 283. outer valve cylinders, 284. valve ball, 285. springs, 29. packing rings, 291. first through holes, 292. second through hole, 3. plugs.
The specific embodiment
Below in conjunction with accompanying drawing, fireflood well sand control gas-tight oil rig described in the utility model is described in further detail.A fireflood well sand control gas-tight oil rig, comprises sand-proof oil-well pump 1 and the sand settling type gas anchor 2 that is arranged on sand-proof oil-well pump 1 bottom; Sand-proof oil-well pump 1 comprises pump pillar 13 and is arranged on the standing valve assembly 14 in pump pillar 13; Sand settling type gas anchor 2 comprises that inner tube 25 and fixed cover be located at the outer tube 22 outside inner tube 25, inner tube 25 open upper end and standing valve assemblies 14 are sealedly and fixedly connected by O type circle 26, the lower end closed of inner tube 25, the two ends up and down of outer tube 22 are all sealed, between outer tube 22 and inner tube 25, form the first toroidal cavity, outer tube 22 is provided with and is communicated with the outside of outer tube 22 and the duct 221 of this first toroidal cavity, inner tube 25 is provided with and is communicated with the inside of inner tube 25 and the intake 27 of this first toroidal cavity, intake 27 is positioned at the below in duct 221, as shown in Figure 1.
In manufacturing process, gas and liquid mixture flows to this first toroidal cavity by outer tube 22 ducts, top 221 of sand settling type gas anchor 2, then from intake 27, enter into the inside of inner tube 25, when plunger 11 moves upward, two valve balls in standing valve assembly 14 and the crude oil of the inside of inner tube 25 can together with the oil pumping process that moved upward.
In order to prevent that sand grains is at the interior holddown of sand-proof oil-well pump 1, between inner tube 25 and outer tube 22, be also arranged with intervalve 23, between inner tube 25 and intervalve 23, form the second toroidal cavity 231, between intervalve 23 and outer tube 22, form the 3rd toroidal cavity 222, the upper end of intervalve 23 and pump pillar 13 are sealedly and fixedly connected, the 4th toroidal cavity 131 forming between pump pillar 13 and standing valve assembly 14 is communicated with the second toroidal cavity 231, and the lower end of intervalve 23 is lower than the lower end of inner tube 25.Like this, when the outer wall of pump barrel 12 has sand grains, then sand grains can enter along the outer wall of pump barrel 12 the second toroidal cavity 231 downwards continues to move downward and be collected.
When this fireflood well sand control gas-tight oil rig contains intervalve 23, intervalve 23 is also provided with intake 27, the 3rd toroidal cavity 222 is successively by being arranged on intake on intervalve 23 27 and being arranged on the internal communication of intake 27 in inner tube 25 and inner tube 25, as shown in Figure 4.So just realized being communicated with of inside of the 3rd toroidal cavity 222 and inner tube 25.
Between inner tube 25 and intervalve 23, be provided with packing ring 29, packing ring 29 is provided with the first through hole 291 of horizontal direction, intake 27 on intervalve 23 and the intake 27 being arranged in inner tube 25 are communicated with by the first through hole 291, packing ring 29 can guarantee that liquid can not leak when the 3rd toroidal cavity 222 enters the inside of inner tube 25, packing ring 29 is provided with the second through hole 292 of vertical direction, the 4th toroidal cavity 131 is the internal communication with the lower end of intervalve 23 by the second through hole 292, as shown in Figure 2.The second through hole 292 is set can be made sand grains enter the rear continuation of the second toroidal cavity 231 downwards along the outer wall of pump barrel 12 inwardly to move the lower end of pipe 25 and intervalve 23, be convenient to the centralized collection of sand grains.
Between intervalve 23 and outer tube 22, the outer wall of intervalve 23 is provided with flight 24, and flight 24 is between duct 221 and intake 27.Flight 24 can carry out separation to entering the gas-liquid mixed of the 3rd toroidal cavity 222, is also provided with steam vent on flight 24.
The lower end of intervalve 23 is lower than the lower end of outer tube 22, the lower end of intervalve 23 is lower than the lower end of inner tube 25, and the lower end of intervalve 23 is connected with plug 3, during use, the lower end of intervalve 23 can also connect plug 3 after connected pipes again, collects the sand grains flowing downward along the outer wall of pump barrel 12 with this oil pipe.
The lower end of outer tube 22 is lower than the lower end of inner tube 25, the lower end of outer tube 22 is provided with and automatically unloads sand valve 28, automatically unload sand valve 28 and comprise valve wall 281, valve wall 281 comprises interior valve cylinder 282 and is set in the outer valve cylinder 283 outside interior valve cylinder 282, the upper end of interior valve cylinder 282 is communicated with the 3rd toroidal cavity 222, the lower end of interior valve cylinder 282 is provided with valve ball 284, is provided with and can to valve ball 284, provides the spring 285 of restoring force, as shown in Figure 3 between interior valve cylinder 282 and outer valve cylinder 283.When the lower end of the 3rd toroidal cavity 222 has deposited after certain sand grains, responsive spring 285 under the effect of sand grains gravity by valve ball 284 to pressing down, thereby sand grains is gushed from interior valve cylinder 282, in order to prevent that spring 285 is got stuck by sand grains, so valve wall 281 is arranged to tube-in-tube structure, make it comprise interior valve cylinder 282 and outer valve cylinder 283, spring 285 is arranged between interior valve cylinder 282 and outer valve cylinder 283.In addition, automatically unload sand valve 28 and be arranged on outside the lower end of outer tube 22, outside the lower end of outer tube 22, be provided with pocket, automatically unload sand valve 28 and be arranged in pocket, this pocket unloads for taking up the sand grains that sand valve 28 gushes automatically.
The upper end of sand settling type gas anchor 2 is provided with top connection 21, and the upper end of intervalve 23 is sealedly and fixedly connected by top connection 21 and pump pillar 13.In the pump pillar 13 of sand-proof oil-well pump 1, be provided with the pump barrel 12 being fixedly connected with standing valve assembly 14, be provided with plunger 11 in pump barrel 12, pump barrel 12 length are less than the length of plunger 11, prevent that like this sand grains from blocking sand-proof oil-well pump 1.
The course of work of this fireflood well sand control gas-tight oil rig is as follows: successively by plug 3, oil pipe, sand settling type gas anchor 2 and sand-proof oil-well pump 1 assembling, all adopt screwed connection between each instrument as shown in Figure 1.When wherein sand settling type gas anchor 2 is connected with sand-proof oil-well pump 1, the standing valve assembly 14 bottom inner chambers of sand-proof oil-well pump 1 are first inserted in inner tube 25 upper ends of sand settling type gas anchor 2, by O type circle 26, realize sealing.The top connection 21 of sand settling type gas anchor 2 is afterwards connected with sand-proof oil-well pump 1 lower end again.Then according to oil well actual conditions, then be lowered to the oil pipe of certain length, the lower end of this oil pipe is connected with the upper end of sand-proof oil-well pump 1.Rod string bottom connects plunger 11, and sucker rod is lowered in oil pipe, after plunger 11 enters pump barrel 12 and is hampered, adjusts the dead space construction that fulfils assignment.In manufacturing process, gas and liquid mixture flows to the 3rd toroidal cavity 222 between intervalve 23 and outer tube 22 by the duct 221 on outer tube 22 tops of the sand settling type gas anchor 2 of tubing string bottom, due to gas-liquid density variation, minute bubbles move upward and build up into air pocket, crude oil moves downward, in helical annular space, accelerate to be spiral turbulence, under the effect of centrifugal force, not separated complete minute bubbles form air pocket and air-flow in the 3rd toroidal cavity 222 inner sides, steam vent on flight 24 moves upward, and through outer tube 22 upper discharge hole or duct 221, discharges; Crude oil accumulates in the 3rd toroidal cavity 222 outsides and moves downward the inside that flows into inner tube 25 through intake 27, is then inhaled into sand-proof oil-well pump 1.The reservoir sand that does not flow into sand-proof oil-well pump 1 with liquid is gradually in the 22 bottoms accumulations of gas anchor outer tube, when reaching a certain height, because the density of reservoir sand is greater than formation fluid density, valve ball Shang Xia 284 pressure official post design responsive spring 285 and be stretched, unloading sand valve 28 has opened and has automatically unloaded sand, sand grains is unloaded to pocket, avoid long-term accumulation to cause intake 27 to be buried by sand.Liquid is drawn into after sand-proof oil-well pump 1, because the plunger 11 of sand-proof oil-well pump 1 design is longer than pump barrel 12, in sucker rod twitch process up and down, plunger 11 upper ends are exposed at outside pump barrel 12 all the time, can effectively prevent that sand grains from entering the fit clearance holddown of pump barrel 12 and plunger 11; In addition, can not take the sand grains sinking gradually to pump barrel 12 to ground with liquid stream will be that the 4th toroidal cavity 131 continues deposition downwards along pump barrel 12 with the sandwich passage of pump pillar 13 under the stirring at liquid stream, i.e. the second toroidal cavity 231 of the intervalve 23 of sand settling type gas anchor 2 and the sandwich passage of inner tube 25 of flowing through again, sink in the lower end of intervalve 23 and the storage sand oil pipe pipe between plug 3, effectively avoid holddown problem.Thereby finally reach the object of gas-tight sand control oil pumping.
The above; be only specific embodiment of the utility model, can not limit the scope that utility model is implemented with it, so the displacement of its equivalent assemblies; or the equivalent variations of doing according to the utility model scope of patent protection and modification, all should still belong to the category that this patent is contained.
Claims (10)
1. a fireflood well sand control gas-tight oil rig, is characterized in that, described fireflood well sand control gas-tight oil rig comprises sand-proof oil-well pump (1) and is arranged on the sand settling type gas anchor (2) of sand-proof oil-well pump (1) bottom;
Sand-proof oil-well pump (1) comprises pump pillar (13) and is arranged on the standing valve assembly (14) in pump pillar (13);
Sand settling type gas anchor (2) comprises that inner tube (25) and fixed cover be located at the outer outer tube (22) of inner tube (25), open upper end and the standing valve assembly (14) of inner tube (25) is sealedly and fixedly connected, the lower end closed of inner tube (25), the two ends up and down of outer tube (22) are all sealed, between outer tube (22) and inner tube (25), form the first toroidal cavity, outer tube (22) is provided with and is communicated with the outside of outer tube (22) and the duct (221) of this first toroidal cavity, inner tube (25) is provided with and is communicated with the inside of inner tube (25) and the intake (27) of this first toroidal cavity, intake (27) is positioned at the below of duct (221).
2. fireflood well sand control gas-tight oil rig according to claim 1, it is characterized in that: between inner tube (25) and outer tube (22), be also arranged with intervalve (23), between inner tube (25) and intervalve (23), form the second toroidal cavity (231), between intervalve (23) and outer tube (22), form the 3rd toroidal cavity (222), the upper end of intervalve (23) and pump pillar (13) are sealedly and fixedly connected, the 4th toroidal cavity (131) forming between pump pillar (13) and standing valve assembly (14) is communicated with the second toroidal cavity (231), the lower end of intervalve (23) is lower than the lower end of inner tube (25).
3. fireflood well sand control gas-tight oil rig according to claim 2, it is characterized in that: intervalve (23) is also provided with intake (27), the 3rd toroidal cavity (222) is successively by being arranged on the intake (27) on intervalve (23) and being arranged on the internal communication of intake (27) in inner tube (25) and inner tube (25).
4. fireflood well sand control gas-tight oil rig according to claim 2, it is characterized in that: between inner tube (25) and intervalve (23), be provided with packing ring (29), packing ring (29) is provided with first through hole (291) of horizontal direction, intake (27) on intervalve (23) and the intake (27) being arranged in inner tube (25) are communicated with by the first through hole (291), packing ring (29) is provided with second through hole (292) of vertical direction, and the 4th toroidal cavity (131) is the internal communication with the lower end of intervalve (23) by the second through hole (292).
5. fireflood well sand control gas-tight oil rig according to claim 2, it is characterized in that: between intervalve (23) and outer tube (22), the outer wall of intervalve (23) is provided with flight (24), and flight (24) is positioned between duct (221) and intake (27).
6. fireflood well sand control gas-tight oil rig according to claim 2, is characterized in that: the lower end of intervalve (23) is lower than the lower end of outer tube (22), and the lower end of intervalve (23) is connected with plug (3).
7. fireflood well sand control gas-tight oil rig according to claim 2, it is characterized in that: the lower end of outer tube (22) is lower than the lower end of inner tube (25), the lower end of outer tube (22) is provided with and automatically unloads sand valve (28), automatically unload sand valve (28) and comprise valve wall (281), valve wall (281) comprises interior valve cylinder (282) and is set in the outer outer valve cylinder (283) of interior valve cylinder (282), the upper end of interior valve cylinder (282) is communicated with the 3rd toroidal cavity (222), the lower end of interior valve cylinder (282) is provided with valve ball (284), between interior valve cylinder (282) and outer valve cylinder (283), be provided with the spring (285) of restoring force can be provided to valve ball (284).
8. fireflood well sand control gas-tight oil rig according to claim 7, is characterized in that: automatically unload sand valve (28) and be arranged on outside the lower end of outer tube (22), outside the lower end of outer tube (22), be provided with pocket, automatically unload sand valve (28) and be arranged in pocket.
9. fireflood well sand control gas-tight oil rig according to claim 2, is characterized in that: the upper end of sand settling type gas anchor (2) is provided with top connection (21), and the upper end of intervalve (23) is sealedly and fixedly connected by top connection (21) and pump pillar (13).
10. fireflood well sand control gas-tight oil rig according to claim 1, it is characterized in that: in the pump pillar (13) of sand-proof oil-well pump (1), be provided with the pump barrel (12) being fixedly connected with standing valve assembly (14), in pump barrel (12), be provided with plunger (11), pump barrel (12) length is less than the length of plunger (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547856.1U CN203515492U (en) | 2013-09-04 | 2013-09-04 | Fireflood well sand-gas-preventing oil pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547856.1U CN203515492U (en) | 2013-09-04 | 2013-09-04 | Fireflood well sand-gas-preventing oil pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515492U true CN203515492U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320547856.1U Withdrawn - After Issue CN203515492U (en) | 2013-09-04 | 2013-09-04 | Fireflood well sand-gas-preventing oil pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498646A (en) * | 2013-09-04 | 2014-01-08 | 中国石油天然气股份有限公司 | Sand-prevention and gas-prevention oil pumping device of fireflood well |
-
2013
- 2013-09-04 CN CN201320547856.1U patent/CN203515492U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498646A (en) * | 2013-09-04 | 2014-01-08 | 中国石油天然气股份有限公司 | Sand-prevention and gas-prevention oil pumping device of fireflood well |
| CN103498646B (en) * | 2013-09-04 | 2016-04-06 | 中国石油天然气股份有限公司 | A kind of fireflood well sand control gas-tight oil rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20160406 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |