CN203516027U - Sand and gas prevention integrated oil extraction device - Google Patents
Sand and gas prevention integrated oil extraction device Download PDFInfo
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- CN203516027U CN203516027U CN201320573395.5U CN201320573395U CN203516027U CN 203516027 U CN203516027 U CN 203516027U CN 201320573395 U CN201320573395 U CN 201320573395U CN 203516027 U CN203516027 U CN 203516027U
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Abstract
A sand and gas prevention integrated oil extraction device comprises an oil well pump and a gas anchor. The oil well pump is provided with an outer pipe and a plunger, the plunger penetrates through the outer pipe, and the lower end of the outer pipe is connected with a bi-pass coupling. The plunger is sleeved with a pump cylinder, the upper end of the plunger is connected with an upper travelling valve, the lower end of the plunger is connected with a lower travelling valve, the lower end of the pump cylinder is connected with a plurality of standing valves, and the multiple standing valves are oppositely communicated with a center hole of the bi-pass coupling. The gas anchor is provided with an outer cylinder, an inner cylinder and a center pipe, a liquid inlet is formed in the upper end of the outer cylinder, screen cloth is arranged outside the liquid inlet, the upper end of the outer cylinder is connected with a centralizing ring, and the lower end of the outer cylinder is connected with a sub-coupling. The inner cylinder is located in the outer cylinder, the upper end of the inner cylinder is connected with the bi-pass coupling, and the lower end of the inner cylinder is connected with a bi-pass connector. The center pipe is located in the inner cylinder, the upper end of the center pipe is oppositely communicated with the center hole of the bi-pass coupling, and the lower end of the center pipe is oppositely communicated with an oil inlet channel of the bi-pass connector. According to the sand and gas prevention integrated oil extraction device, sand and gas prevention integration can be achieved in the oil extraction process, and oilfield exploitation benefits can be improved.
Description
Technical field
The utility model is relevant for a kind of extracting device of oil, especially relevant for the anti-gas integral extracting device of oil of the sand control in a kind of oil recovery technique field.
Background technique
In oil field development, sand production is a great problem of oilfield exploitation.Liaohe Oil Field has many blocks to shake out seriously, the problems such as sand-covered pump plunger, sand holddown, pump leakage, cause pump detection period short, and the serious pumping well that affects is normally produced, even some oil well seriously cannot be exploited because shaking out, and mainly adopts at present the measures such as extraordinary sand-control pump, sand control screen.
Along with the increasing of oil well produced degree, sand well strata pressure declines, and the solution gas in crude oil is separated out too early, also has the gas-oil ratio of most sand well own just high, and the full level of oil well pump is reduced, and even causes gas lock, reduces pump efficiency.This type of well need adopt gas anchor to carry out Oil-gas Separation.
In existing oil well, existence is simultaneously shaked out, the problem of high gas-oil ratio (HGOR), to sucker rod pumping, has brought great difficulty.This class oil well needs not only sand control but also gas-tight, but current sand-proof oil-well pump can not be used in conjunction with gas anchor, causes such oil well only can sand control and can not gas-tight, or only can gas-tight and can not sand control, has affected the normal production of oil well.
Therefore, be necessary to provide a kind of new extracting device of oil, overcome above-mentioned defect.
Model utility content
The purpose of this utility model is to provide the anti-gas integral extracting device of oil of a kind of sand control, in oil recovery process, can realize the anti-gas integral of sand control, and sand, gas anti-, improve oilfield exploitation benefit.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of sand control anti-gas integral extracting device of oil, and the anti-gas integral extracting device of oil of described sand control comprises:
Oil well pump, it has:
Outer tube, its upper end is connected with tubing coupling, and its lower end is connected with bilateral box cupling, and described bilateral box cupling has center hole and is positioned at the first sand setting passage in described center hole outside;
Plunger, it is located in described outer tube, the outer cover of described plunger is provided with pump barrel, the upper end of described plunger is connected with upper travelling valve, its lower end is connected with lower travelling valve, the lower end of described pump barrel is connected in series with a plurality of standing valves, the relative connection of center hole of the lower end of a plurality of described standing valves and described bilateral box cupling;
Gas anchor, it is connected to the lower end of described oil well pump, and described gas anchor has:
Urceolus, its upper end offers inlet opening, on described urceolus, is arranged with screen cloth, and described screen cloth is relative with described inlet opening, and the upper end of described urceolus is connected with centering ring, and its lower end is connected with sub-coupling;
Inner core, it is located in described urceolus, the upper end of described inner core is connected with described bilateral box cupling, its lower end is connected with duplex fitting, the lower end of described duplex fitting is connected with described sub-coupling, described duplex fitting has the second sand setting passage and oil inlet passage, between described inner core and described urceolus, is formed with annular oil inlet passage, and described oil inlet passage is connected with described annular oil inlet passage;
Center tube, it is located in described inner core, the relative connection of center hole of the upper end of described center tube and described bilateral box cupling, the relative connection of oil inlet passage of its lower end and described duplex fitting, between described center tube and described inner core, be formed with annular sand setting passage, described the second sand setting passage is connected with described the first sand setting passage by described annular sand setting passage.
In a preferred embodiment, the length of described plunger is greater than the length of described pump barrel.
In a preferred embodiment, in described annular oil inlet passage, be provided with screw piece, described screw piece is spirally wound on the outside of described inner core, between described screw piece and described inner core, is formed with compression ring road.
In a preferred embodiment, the lower end of described sub-coupling is connected with oil pipe under pump, and under described pump, the lower end of oil pipe is connected with plug, and the second sand setting passage of described duplex fitting is connected with oil pipe under described pump by described sub-coupling.
In a preferred embodiment, offer oil-feed side opening in described duplex fitting, the oil inlet passage of described duplex fitting is connected with described annular oil inlet passage by described oil-feed side opening.
In a preferred embodiment, described upper travelling valve comprises plunger delivery connection, on described plunger delivery connection, offer oil outlet, the lower end of described plunger delivery connection is connected with upper travelling valve seated connection head, between the upper end of described upper travelling valve seated connection head and described plunger delivery connection, be arranged with upper travelling valve seat, the described upper travelling valve seat seat of honour is provided with upper travelling valve ball, and the lower end of described upper travelling valve seated connection head is connected with described plunger.
In a preferred embodiment, the upper end of described plunger delivery connection is connected with centralizer.
In a preferred embodiment, described lower travelling valve comprises lower travelling valve cover, the upper end of described lower travelling valve cover is connected with described plunger, its lower end is connected with lower travelling valve shield joint, between described lower travelling valve shield joint and described lower travelling valve cover, be arranged with lower travelling valve seat, the described lower travelling valve seat seat of honour is provided with lower travelling valve ball.
In a preferred embodiment, described standing valve comprises standing valve cover, in described standing valve cover, is provided with fixed valve base, and the described fixed valve base seat of honour is provided with fixed valve ball.
In a preferred embodiment, the upper end of described pump barrel is connected with supporting positive cover.
Feature and the advantage of the anti-gas integral extracting device of oil of sand control of the present utility model are: because downhole crude is before entering pump, first from the inlet opening of gas anchor urceolus, enter gas anchor, first screen cloth on urceolus has carried out sieving first sand to downhole crude, the large sand grains of a part is first blocked by screen cloth, enter less than in pump, that has reduced sand grains enters pump amount; In addition, the gas in downhole crude, from urceolus top inlet opening enters, liquid constantly sinks and in duplex fitting inflow pump, and gas will float and flow into oil jacket annular space by annular oil inlet passage, inlet opening and screen cloth.The anti-gas integral extracting device of oil of this sand control, had not only reached sand control but also had reached the object of gas-tight, had effectively improved the exploitation benefit in oil field.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the plan view of the anti-gas integral extracting device of oil of the sand control of model utility.
Fig. 2 is the oil well pump plan view of the anti-gas integral extracting device of oil of sand control of the present utility model.
Fig. 3 is the gas anchor plan view of the anti-gas integral extracting device of oil of sand control of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-3, the utility model provides a kind of sand control anti-gas integral extracting device of oil, the gas anchor 2 that it comprises oil well pump 1 and is connected to oil well pump 1 lower end.Wherein: oil well pump 1 has outer tube 11 and plunger 12, gas anchor 2 has urceolus 21, inner core 22 and center tube 23.
Urceolus 21 upper ends of gas anchor 2 offer inlet opening 211, on described urceolus 21, are arranged with screen cloth 212, and described screen cloth 212 is relative with described inlet opening 211, and the upper end of described urceolus 21 is connected with centering ring 213, and its lower end is connected with sub-coupling 214; The inner core 22 of gas anchor 2 is located in described urceolus 21, the upper end of described inner core 22 is connected with described bilateral box cupling 14, its lower end is connected with duplex fitting 24, the lower end of described duplex fitting 24 is connected with described sub-coupling 214, described duplex fitting 24 has the second sand setting passage 241 and oil inlet passage 242, between described inner core 22 and described urceolus 21, be formed with annular oil inlet passage 215, described oil inlet passage 242 is connected with described annular oil inlet passage 215; The center tube 23 of gas anchor 2 is located in described inner core 22, the relative connection of center hole 141 of the upper end of described center tube 23 and described bilateral box cupling 14, the relative connection of oil inlet passage 242 of its lower end and described duplex fitting 24, between described center tube 23 and described inner core 22, be formed with annular sand setting passage 221, described the second sand setting passage 241 is connected with described the first sand setting passage 142 by described annular sand setting passage 221.
Specifically, as shown in Figure 2, outer tube 11 upper ends of oil well pump 1 are connected with box cupling 111 on outer tube, and on outer tube, the upper end of box cupling 111 is connected with pump lifting sub 112, the upper end of pump lifting sub 112 is connected with tubing coupling 13, thereby outer tube 11 is connected on downhole tool by tubing coupling 13.
The plunger 12 of oil well pump 1 by upper plug 121, in plunger 122 and lower plunger 123 form, upper plug 121 is by being connected to the upper end of middle plunger 122 to silk 124, the lower end of middle plunger 122 is by being connected to the upper end of lower plunger 123 to silk 125, thereby the plunger that upper plug 121, middle plunger 122 and lower plunger 123 combine 12 middle parts form one and cross oily passage 126, and downhole crude is crossed oily passage 126 by this and is pumped down to ground.Plunger 12 is located in urceolus 11, upper plug 121 outer cover of plunger 12 are provided with pump barrel 15, in the utility model, the upper end of pump barrel 15 is connected with supporting positive cover 151, supporting positive cover 151 plays the effect of righting pump barrel 15, the lower end of pump barrel 15 is connected with support column 153 by pump barrel box cupling 152, and support column 153 is set in the outside of lower plunger 123.In the present embodiment, support column 153 outer cover are provided with spider 1531, and spider 1531 is provided with fulcrum 1532, and spider 1531 and fulcrum 1532 play the effect of righting support column 153.
A plurality of standing valves are connected to the lower end of support column 153, in the utility model, standing valve is two, comprises upper standing valve 18 and lower standing valve 18 ' that structure is identical, upper standing valve 18 is connected to the lower end of support column 153, and lower standing valve 18 ' connects the lower end of upper standing valve 18.Wherein, upper standing valve 18 comprises standing valve cover 181, the upper end of upper standing valve cover 181 is threaded in the outside, lower end of support column 153, its lower end inside thread connects the lower standing valve cover 181 ' of lower standing valve 18 ', upper fixed valve base 182 is folded between lower standing valve cover 181 ' and upper standing valve cover 181, and upper fixed valve base 182 seats of honour are provided with fixed valve ball 183.Lower standing valve 18 ' comprises lower standing valve cover 181 ', the lower end inside thread of lower standing valve cover 181 ' is connected with standing valve joint 184, lower fixed valve base 182 ' is folded between lower standing valve cover 181 ' and standing valve joint 184, and the lower fixed valve base 182 ' seat of honour is provided with lower fixed valve ball 183 '.When the upper fixed valve ball 183 of upper standing valve 18 and the lower fixed valve ball 183 ' of lower standing valve 18 ' depart from respectively fixed valve base 182 and lower fixed valve base 182 ', downhole crude will flow in support column 153 by lower standing valve 18 ', upper standing valve 18, thereby flow in the oily passage 126 of mistake of plunger 12 from lower travelling valve 17.
As shown in Figure 3, urceolus 21 upper ends of gas anchor 2 are connected with centering ring 213, and its lower end is connected with sub-coupling 214, and sub-coupling 214 has perforation 2141.On the upper end sidewall of urceolus 21, along the circumferential direction offer a plurality of inlet openings 211, the upper end of urceolus 21 is arranged with screen cloth 212, and screen cloth 212 is relative with a plurality of inlet openings 211, and screen cloth 212, for filtering the large sand grains of downhole crude, prevents that large sand grains from entering pump.
The lower end of duplex fitting 24 is connected with a tubing nipple 26 by a sub-coupling 25, this tubing nipple 26 with stretch in the perforation 2141 of sub-coupling 214 and be threaded on sub-coupling 214, the middle part of duplex fitting 24 offers oil inlet passage 242, the second sand setting passage 241 is opened in a side of oil inlet passage 242, the second sand setting passage 241 axially runs through whole duplex fitting 24, in the utility model, in duplex fitting 24, offer oil-feed side opening 243, oil inlet passage 242 is connected with oil-feed side opening 243, thereby the oil inlet passage 243 of duplex fitting 24 is connected with annular oil inlet passage 215 by this oil-feed side opening 243.
In the utility model, the lower end of sub-coupling 214 is connected with oil pipe (not shown) under pump, and under pump, the lower end of oil pipe is connected with plug 27, and the second sand setting passage 241 of duplex fitting 24 is connected with oil pipe under pump by the perforation 2141 of sub-coupling 214.
The working procedure of the anti-gas integral extracting device of oil of this sand control is as follows: first, during oil well pump 1 work, plunger 12 moves back and forth up and down in pump barrel 15, plunger 12 is when up stroke, downhole crude enters between urceolus 21 and inner core 22 in annular oil inlet passage 215 from the inlet opening 211 of gas anchor 2 urceolus 21, then by the oil-feed side opening 243 of duplex fitting 24, oil inlet passage 242 flows in center tube 23, and then flow in the center hole 141 of bilateral box cupling 14, now, pump barrel 15 cavity volume increase, pressure diminishes, lower travelling valve 17 is in closed condition, the fixed valve ball 183 of standing valve 18 and the fixed valve ball 183 ' of standing valve 18 ' are backed down by lower liquid, standing valve 18 and standing valve 18 ' are in open mode, now downhole crude flows into by standing valve joint 184 chamber interior that standing valves 18 ' and standing valve 18 enter pump barrel 15 from the center hole 141 of bilateral box cupling 14.When plunger 12 down stroke, pump barrel 15 cavity volume reduce, pressure increases, pump barrel 15 chamber pressures by the fixed valve ball of standing valve 18 183 contacts on fixed valve base 182, standing valve 18 cuts out, now, 174, the lower travelling valve ball of lower travelling valve 17 under the pressure-acting of pump barrel 15 inner chambers by jack-up, lower travelling valve 17 is opened, crude oil in pump barrel 15 inner chambers is by by flowing on lower travelling valve 17 in the oil inlet passage 126 of plunger 12, then by the oil outlet 1611 of upper travelling valve 16, discharge, enter on pump in oil pipe, circulation and so forth, downhole crude is constantly pumped to ground.
The anti-gas integral extracting device of oil of sand control of the present utility model, because downhole crude is before entering pump, first from the inlet opening 211 of gas anchor 2 urceolus 21, enter gas anchor 2, first screen cloth 212 on urceolus 21 has carried out sieving first sand to downhole crude, the large sand grains of a part is first blocked by screen cloth 212, enter less than in pump, that has reduced sand grains enters pump amount; In addition, the gas in downhole crude, from urceolus 21 top inlet openings 211 enter, liquid constantly sinks and in duplex fitting 24 inflow pumps, and gas will float and flow into oil jacket annular spaces by annular oil inlet passage 215, inlet opening 211 and screen cloth 212.The anti-gas integral extracting device of oil of this sand control, had not only reached sand control but also had reached the object of gas-tight, had effectively improved the exploitation benefit in oil field.
According to a mode of execution of the present utility model, the length of described plunger 12 is greater than the length of described pump barrel 15.The benefit arranging is like this, in whole aspiration procedure, the upper plug 121 of plunger 12 is in outside pump barrel 15 all the time, and the sand falling in oil pumping process is difficult to enter in the gap between plunger 12 and pump barrel 15, can effectively prevent sand card, improve the working life of oil well pump.Compare with the structure of the long pump barrel of short-plunger of conventional conventional pump, the utility model is in aspiration procedure, in outer tube 11, cannot be carried to ground by liquid stream and the sand grains that comes of intermittently avaling during stop pumping can not deposit and accumulates on plunger 12, those sand grains are to flow in the first sand setting passage 142 of bilateral box cupling 14 by the annular space 19 between outer tube 11 and pump barrel 15, then flow into the inner core 22 of gas anchor 2 and the annular sand setting passage 221 between center tube 23, flow into afterwards in the second sand setting passage 241 of duplex fitting 24, finally by sub-coupling 25, tubing nipple 26 flows under the pump of the 30-50m between sub-couplings 214 and plug 27 in oil pipe, so just can on pump, not cause sand buried column plug.
According to a mode of execution of the present utility model, in described annular oil inlet passage 215, be provided with screw piece 28, described screw piece 28 is spirally wound on the outside of described inner core 22, between described screw piece 28 and described inner core 22, is formed with compression ring road 281.This screw piece 28 can make the crude oil flowing into from inlet opening 211 flow downward at annular oil inlet passage 215 internal spirals, utilize the effect of rotary centrifugal force, realize the separation of gas-liquid in crude oil, liquid after separation is by the oil-feed side opening 243 of duplex fitting 24, oil inlet passage 242 upwards flows, by oil well pump 1, be drawn on pump, and the less gas of density is under the effect of rotary centrifugal force, be gathered in gradually the inner side of inner core 22, by between screw piece 28 and inner core 22 to cross compression ring road 281 floating and through the inlet opening 211 of urceolus 21, screen cloth 212, oil jacket annular space is discharged to ground, further promoted the discharge of gas in crude oil, reach the object of the effective gas-tight of oil well pump.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various changes or modification and not depart from spirit and scope of the present utility model the utility model embodiment according to the disclosed content of application documents.
Claims (10)
1. the anti-gas integral extracting device of oil of sand control, is characterized in that, the anti-gas integral extracting device of oil of described sand control comprises:
Oil well pump, it has:
Outer tube, its upper end is connected with tubing coupling, and its lower end is connected with bilateral box cupling, and described bilateral box cupling has center hole and is positioned at the first sand setting passage in described center hole outside;
Plunger, it is located in described outer tube, the outer cover of described plunger is provided with pump barrel, the upper end of described plunger is connected with upper travelling valve, its lower end is connected with lower travelling valve, the lower end of described pump barrel is connected in series with a plurality of standing valves, the relative connection of center hole of the lower end of a plurality of described standing valves and described bilateral box cupling;
Gas anchor, it is connected to the lower end of described oil well pump, and described gas anchor has:
Urceolus, its upper end offers inlet opening, on described urceolus, is arranged with screen cloth, and described screen cloth is relative with described inlet opening, and the upper end of described urceolus is connected with centering ring, and its lower end is connected with sub-coupling;
Inner core, it is located in described urceolus, the upper end of described inner core is connected with described bilateral box cupling, its lower end is connected with duplex fitting, the lower end of described duplex fitting is connected with described sub-coupling, described duplex fitting has the second sand setting passage and oil inlet passage, between described inner core and described urceolus, is formed with annular oil inlet passage, and described oil inlet passage is connected with described annular oil inlet passage;
Center tube, it is located in described inner core, the relative connection of center hole of the upper end of described center tube and described bilateral box cupling, the relative connection of oil inlet passage of its lower end and described duplex fitting, between described center tube and described inner core, be formed with annular sand setting passage, described the second sand setting passage is connected with described the first sand setting passage by described annular sand setting passage.
2. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, is characterized in that, the length of described plunger is greater than the length of described pump barrel.
3. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, is characterized in that, in described annular oil inlet passage, is provided with screw piece, and described screw piece is spirally wound on the outside of described inner core, between described screw piece and described inner core, is formed with compression ring road.
4. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, it is characterized in that, the lower end of described sub-coupling is connected with oil pipe under pump, and under described pump, the lower end of oil pipe is connected with plug, and the second sand setting passage of described duplex fitting is connected with oil pipe under described pump by described sub-coupling.
5. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, is characterized in that, offers oil-feed side opening in described duplex fitting, and the oil inlet passage of described duplex fitting is connected with described annular oil inlet passage by described oil-feed side opening.
6. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, it is characterized in that, described upper travelling valve comprises plunger delivery connection, on described plunger delivery connection, offer oil outlet, the lower end of described plunger delivery connection is connected with upper travelling valve seated connection head, between the upper end of described upper travelling valve seated connection head and described plunger delivery connection, be arranged with upper travelling valve seat, the described upper travelling valve seat seat of honour is provided with upper travelling valve ball, and the lower end of described upper travelling valve seated connection head is connected with described plunger.
7. the anti-gas integral extracting device of oil of sand control as claimed in claim 6, is characterized in that, the upper end of described plunger delivery connection is connected with centralizer.
8. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, it is characterized in that, described lower travelling valve comprises lower travelling valve cover, the upper end of described lower travelling valve cover is connected with described plunger, its lower end is connected with lower travelling valve shield joint, between described lower travelling valve shield joint and described lower travelling valve cover, be arranged with lower travelling valve seat, the described lower travelling valve seat seat of honour is provided with lower travelling valve ball.
9. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, is characterized in that, described standing valve comprises standing valve cover, in described standing valve cover, is provided with fixed valve base, and the described fixed valve base seat of honour is provided with fixed valve ball.
10. the anti-gas integral extracting device of oil of sand control as claimed in claim 1, is characterized in that, the upper end of described pump barrel is connected with supporting positive cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573395.5U CN203516027U (en) | 2013-09-16 | 2013-09-16 | Sand and gas prevention integrated oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573395.5U CN203516027U (en) | 2013-09-16 | 2013-09-16 | Sand and gas prevention integrated oil extraction device |
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| CN203516027U true CN203516027U (en) | 2014-04-02 |
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| CN201320573395.5U Withdrawn - After Issue CN203516027U (en) | 2013-09-16 | 2013-09-16 | Sand and gas prevention integrated oil extraction device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541888A (en) * | 2013-09-26 | 2014-01-29 | 内蒙古北方重工业集团有限公司 | Double-pump converging intelligent control system of flow type vehicle-mounted concrete pump |
| CN103541887A (en) * | 2013-09-16 | 2014-01-29 | 中国石油天然气股份有限公司 | Sand-preventing gas-preventing integrated oil production device |
| CN105604860A (en) * | 2016-01-24 | 2016-05-25 | 况常松 | Environment-friendly and efficient oiling machine energy-saving pump |
| CN105604851A (en) * | 2015-12-18 | 2016-05-25 | 余虹仪 | Petroleum extraction device for oil well |
| CN109611321A (en) * | 2018-11-09 | 2019-04-12 | 大港油田集团有限责任公司 | A kind of bilayer gas-tight separate extracting pump |
-
2013
- 2013-09-16 CN CN201320573395.5U patent/CN203516027U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541887A (en) * | 2013-09-16 | 2014-01-29 | 中国石油天然气股份有限公司 | Sand-preventing gas-preventing integrated oil production device |
| CN103541887B (en) * | 2013-09-16 | 2015-11-18 | 中国石油天然气股份有限公司 | The anti-gas integral extracting device of oil of sand control |
| CN103541888A (en) * | 2013-09-26 | 2014-01-29 | 内蒙古北方重工业集团有限公司 | Double-pump converging intelligent control system of flow type vehicle-mounted concrete pump |
| CN103541888B (en) * | 2013-09-26 | 2016-08-17 | 内蒙古北方重工业集团有限公司 | Flow-type truck mounted concrete pump Dual-pump flow-converging intelligence control system |
| CN105604851A (en) * | 2015-12-18 | 2016-05-25 | 余虹仪 | Petroleum extraction device for oil well |
| CN105604860A (en) * | 2016-01-24 | 2016-05-25 | 况常松 | Environment-friendly and efficient oiling machine energy-saving pump |
| CN109611321A (en) * | 2018-11-09 | 2019-04-12 | 大港油田集团有限责任公司 | A kind of bilayer gas-tight separate extracting pump |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20151118 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |