CN111550216A - Injection-production integrated lifting device - Google Patents
Injection-production integrated lifting device Download PDFInfo
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- CN111550216A CN111550216A CN202010355647.1A CN202010355647A CN111550216A CN 111550216 A CN111550216 A CN 111550216A CN 202010355647 A CN202010355647 A CN 202010355647A CN 111550216 A CN111550216 A CN 111550216A
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- injection
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- plunger
- tube
- connecting pipe
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses an injection-production integrated lifting device, which comprises an upper pump cylinder, a connecting pipe and a chemical injection pipe which are sequentially arranged from outside to inside, wherein the lower end of the upper pump cylinder is sequentially provided with a lower pump cylinder, a coupling and a cyclone pipe; an upper plunger is sleeved outside a main body of the connecting pipe, a ring valve is fixedly mounted at the lower end of the upper plunger, a valve cover is mounted at the upper end of the upper plunger, a blocking cap is further mounted above the upper plunger and fixed on the outer wall of the connecting pipe, and a lower plunger, a stirring pipe and a laval nozzle are sequentially arranged at the lower end of the connecting pipe; the inner cavity of the injection tube is a viscosity reducer injection channel, and a gas injection channel is formed between the outer wall of the injection tube and the inner walls of the connecting tube, the lower plunger and the stirring tube; the lifting device provided by the invention can fully mix the crude oil under the pump with the viscosity reducer, efficiently play the viscosity reducing effect of the viscosity reducer and improve the viscosity reducing effect; in the gas injection process, a gas injection pipe column is not required to be arranged, and gas directly reaches the interior of the original oil layer below the pump, so that the heat loss can be reduced; effectively solves the problems of high viscosity and difficult liquid extraction of the crude oil in the shaft.
Description
Technical Field
The invention relates to an injection-production integrated lifting device, and belongs to the technical field of oilfield exploitation machinery.
Background
Most of onshore heavy oil reservoirs in China are terrestrial deposits of middle and new generations, and a small number of onshore heavy oil reservoirs in China are marine deposits of ancient generations. The oil reservoirs are of various types and complex in geological conditions, mainly multilayer mutual-layer combination is adopted, and about 1/3 reserves are thick-layer massive oil reservoirs. The reservoir is mainly made of clastic rock and has the characteristics of high porosity, high permeability and loose cementation. The thickened oil and the conventional oil have a symbiotic relationship, are influenced by factors such as biodegradation and oxidation in secondary migration, and gradually become thickened from the middle to the edge of a recess in an oil-gas gathering zone. Heavy oil is distributed primarily in the basin edge slope zone and shallow layers of the fractured anticline zone above the raised edge, low relief or depression. The terrestrial heavy oil has a low asphalt content and a high gum content due to its low maturity, and therefore has a low relative density but a high viscosity. At present, the most abundant heavy oil reserves are in the Liaohe oil district in northeast, the victory oil district in east, and the northwest is the Clamayi oil district in Xinjiang. The depth of the reservoir layer is generally less than 2000m, wherein the thick oil reserve with the depth of more than 800m accounts for about 80% of the detected reserve, and about half of the reservoir has the depth of 1300-1700 m. In recent years, the depth of a heavy oil reservoir in a Tuhai basin reaches 2700-3200 m.
The heavy oil has low light component content, high asphaltene and colloid content and low straight-chain hydrocarbon content, so that most of the heavy oil has the characteristics of high viscosity and high density, and the heavy oil is difficult to recover and transport. The viscosity reducing method commonly used in China and outside in the process of heavy oil recovery comprises a viscosity reducer adding method, a gas injection method, a thin oil mixing method and the like.
At present, the method for adding the viscosity reducer in the mine field has two modes:
1. adding the oil from the casing gate to the position below the pump through the oil sleeve ring, and selecting a solid sucker rod string matched with a conventional oil well pump; the viscosity reducer can be added at any time according to production needs without increasing the investment of underground tools such as sucker rod columns and the like, and the field operability is strong, so that the viscosity reducer adding method is a main method for adding the viscosity reducer in a shaft.
2. The hollow rod, the slide valve oil well pump or the offset oil well pump is matched with the special pump, so that the investment cost is increased.
Although the viscosity reducer can be added under the pump in the two modes, the added viscosity reducer floats above the dynamic liquid level of the crude oil, is difficult to reach the suction inlet of an oil well pump, cannot realize uniform pump feeding, cannot achieve an ideal viscosity reduction effect, and cannot effectively reduce the load of the oil pumping unit.
At present, a production pipe column of an original well needs to be lifted up during the operation of turnover, a steam injection pipe column is injected, after the gas injection is finished, the gas injection pipe column is lifted out of a shaft, and then the production pipe column is lowered for oil extraction operation, so that the operation construction of two parts is complicated, the construction cost is increased, and the heat loss is increased.
In summary, the viscosity reducer addition method and the gas injection method in the prior art obviously have defects in the actual production of crude oil, and always bother the technical personnel in the field, so a novel injection-production integrated lifting device is urgently needed to solve the existing problems.
Disclosure of Invention
Aiming at the defects, the invention provides the injection-production integrated lifting device, which can fully mix the crude oil under the pump with the viscosity reducer, efficiently play the viscosity reducing effect of the viscosity reducer, improve the viscosity reducing effect and reduce the input cost; a gas injection pipe column is not required to be arranged in the gas injection process, the gas injection process is simple to construct, the gas directly reaches the interior of the crude oil layer under the pump, and the heat loss can be reduced; the method can combine two oil extraction modes of a viscosity reducer adding method and a gas injection method, and effectively solves the problems of high viscosity and difficult liquid extraction of the crude oil in the shaft.
In order to solve the technical problems, the invention adopts the following technical scheme:
an injection-production integrated lifting device comprises an upper pump cylinder, a connecting pipe and a chemical injection pipe which are sequentially arranged from outside to inside, wherein the lower end of the upper pump cylinder is sequentially provided with a lower pump cylinder, a coupling and a cyclone pipe; an upper plunger is sleeved outside a main body of the connecting pipe, a ring valve is fixedly mounted at the lower end of the upper plunger, a valve cover is mounted at the upper end of the upper plunger, a blocking cap is further mounted above the upper plunger and fixed on the outer wall of the connecting pipe, and a lower plunger, a stirring pipe and a laval nozzle are sequentially arranged at the lower end of the connecting pipe; the inner cavity of the injection tube is a viscosity reducer injection channel, and a gas injection channel is formed between the outer wall of the injection tube and the inner walls of the connecting tube, the lower plunger and the stirring tube.
Furthermore, the lower end of the connecting pipe is connected with the top end of the lower plunger piston, the lower plunger piston is of a hollow structure, and the connecting pipe and the lower plunger piston are coaxially arranged and are communicated with each other in an inner cavity; the diameter of the connecting pipe is larger than that of the lower plunger, and a shaft shoulder for limiting is formed at the joint of the connecting pipe and the lower plunger; the lower end of the lower plunger is connected with the top end of the stirring pipe.
Further, be provided with the Laval shower nozzle in the lower tip of agitator tube, the inside cavity of agitator tube is provided with the arch that is used for playing the stirring effect in the main part of agitator tube, and the agitator tube is worn to establish in the inside of whirl pipe, and the inside of whirl pipe is provided with the whirl passageway.
Further, the injection pipe vertically penetrates through the inner cavities of the connecting pipe, the lower plunger and the stirring pipe, and the injection pipe integrally moves up and down with the connecting pipe, the lower plunger and the stirring pipe.
Further, the medicine injection tube is fixed through an upper fixing ring and a lower fixing ring on the outer wall, and the upper fixing ring and the lower fixing ring have the same structure; the upper fixing ring is arranged at the top of the inner cavity of the lower plunger, and the lower fixing ring is arranged at a step inside the stirring pipe; the upper fixing ring comprises an outer ring body and an inner ring body which are concentrically arranged, the outer wall of the injection tube is sleeved with the inner ring body, the inner ring body and the outer ring body are connected through support frames, and through holes are formed between the support frames.
Furthermore, the lower end of the medicine injection pipe is positioned above the Laval nozzle, and a mixing cavity is arranged between the lower end of the medicine injection pipe and the upper end of the Laval nozzle.
Furthermore, the lower end of the upper pump cylinder is connected with the top end of the lower pump cylinder, and the inner cavity of the upper pump cylinder is communicated with the inner cavity of the lower pump cylinder; the lower end of the lower pump barrel is connected with the top end of the coupling and the inner cavity of the lower pump barrel is communicated with the inner cavity of the coupling; the lower end of the coupling is connected with the top end of the cyclone tube, and the inner cavity of the coupling is communicated with the inner cavity of the cyclone tube.
Furthermore, the lower end of the upper pump barrel is provided with a bias oil inlet valve which is of a ball valve structure.
Furthermore, the upper plunger, the oil outlet valve and the connecting pipe are integrally moved up and down, and the outer wall of the upper plunger is in sliding fit with the inner wall of the upper pump barrel for sealing.
After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:
in the injection-production integrated lifting device provided by the invention, the viscosity reducer directly reaches the interior of a crude oil layer under a pump through the medicine injection channel, and is matched with the stirring device, the stirring device moves up and down to generate rotational flow, and the mixed liquid of the viscosity reducer and crude oil is stirred, so that the crude oil under the pump and the viscosity reducer can be fully mixed, the viscosity reducing effect of the viscosity reducer can be efficiently exerted, the viscosity reducing effect is improved, and the investment cost is reduced;
according to the invention, a gas injection pipe column is not required to be arranged during gas injection, and the gas directly reaches the interior of the crude oil layer under the pump through the gas injection channel, so that the gas injection process is simple in construction, the heat loss can be reduced, and the construction cost is reduced;
the lifting device is of a hollow structure in the whole, and provides a gas injection channel and a medicine injection channel for the exploitation of a heavy oil well respectively, so that a viscosity reducer and gas can directly reach the position below a pump, the injected gas and the injected viscosity reducer are injected into an oil layer at a high speed under the action of Laval nozzles, two oil extraction modes of a viscosity reducer adding method and a gas injection method are effectively combined, and the problems of high viscosity of crude oil in a shaft and difficulty in extracting liquid are effectively solved.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is an enlarged view at D of FIG. 1;
FIG. 6 is a schematic view of the upper retaining ring of the present invention;
in the figure, the position of the upper end of the main shaft,
1-upper pump cylinder, 2-lower pump cylinder, 3-upper plunger, 4-ring valve, 5-valve cover, 6-baffle cap, 7-connecting pipe, 8-lower plunger, 9-offset oil inlet valve, 10-coupling, 11-cyclone pipe, 111-cyclone channel, 12-stirring pipe, 121-bulge, 13-injection pipe, 14-upper fixed ring, 141-outer ring body, 142-inner ring body, 143-connecting rod, 144-through hole, 15-lower fixed ring, 16-laval nozzle, 17-mixing cavity and 18-laval nozzle hole.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in figures 1-6, the invention provides an injection-production integrated lifting device, which comprises an upper pump barrel 1, a connecting pipe 7 and a chemical injection pipe 13 from outside to inside in sequence.
The top end of the upper pump cylinder 1 is connected with an oil pipe column, and the lower end of the upper pump cylinder 1 is sequentially provided with a lower pump cylinder 2, a coupling 10 and a cyclone tube 11; the lower end of the upper pump cylinder 1 is connected with the top end of the lower pump cylinder 2, and the inner cavity of the upper pump cylinder 1 is communicated with the inner cavity of the lower pump cylinder 2; the lower end of the lower pump barrel 2 is connected with the top end of the coupling 10, and the lower pump barrel 2 is communicated with the inner cavity of the coupling 10; the lower end of the coupling 10 is connected with the top end of the cyclone tube 11, and the coupling 10 is communicated with the inner cavity of the cyclone tube 11.
The lower end of the upper pump barrel 1 is provided with a bias oil inlet valve 9, the bias oil inlet valve 9 is of a ball valve structure, and the ball valve has the advantages of high reliability, large oil inlet flow channel and high pump efficiency.
The top of the connecting pipe 7 is connected with a hollow sucker rod, and the hollow sucker rod drives the connecting pipe 7 to move up and down; an upper plunger 3 is sleeved outside a main body of the connecting pipe 7, a ring valve 4 is fixedly mounted at the lower end of the upper plunger 3, a valve cover 5 is mounted at the upper end of the upper plunger 3, a flow hole is formed in the valve cover 5, a blocking cap 6 is further mounted above the upper plunger 3, and the blocking cap 6 is fixed on the outer wall of the connecting pipe 7; when the upper plunger 3 moves upwards, the ring valve 4 is closed and simultaneously drives the upper plunger 3 to move upwards, when the upper plunger moves downwards, the ring valve 4 is opened, the stop cap 6 drives the upper plunger 3 to move downwards, and the upper plunger 3, the ring valve 4 and the connecting pipe 7 integrally perform synchronous up-and-down motion; the outer wall of the upper plunger 3 is in sliding fit sealing with the inner wall of the upper pump barrel 1.
The lower end of the connecting pipe 7 is sequentially provided with a lower plunger 8, a stirring pipe 12 and a Laval nozzle 16; the lower end of the connecting pipe 7 is connected with the top end of the lower plunger 8, the lower plunger 8 is of a hollow structure, and the connecting pipe 7 and the lower plunger 8 are coaxially arranged and communicated with each other in inner cavities; the diameter of the connecting pipe 7 is larger than that of the lower plunger 8, and a shaft shoulder for limiting is formed at the joint of the connecting pipe 7 and the lower plunger 8; the outer wall of the lower plunger 8 is in sliding fit sealing with the inner wall of the lower pump barrel 2; the lower end of the lower plunger 8 is connected with the top end of the stirring pipe 12.
A Laval nozzle 16 is arranged in the lower end part of the stirring pipe 12, and Laval spray holes 18 are formed in the Laval nozzle 16; the stirring pipe 12 is hollow, the main body of the stirring pipe 12 is divided into an upper section and a lower section, the diameter of the upper section is larger than that of the lower section, and a bulge 121 for stirring is arranged outside the main body of the lower section; the stirring pipe 12 penetrates through the inner part of the cyclone pipe 11, and the stirring pipe 12 moves up and down along with the lower plunger 8 to generate cyclone, so that the effect of mixing well fluid and the viscosity reducer is achieved.
The inside of cyclone tube 11 is provided with whirl passageway 111, and whirl passageway 111 is used for mixing the suction channel of well liquid.
The inner cavity of the injection tube 13 is a viscosity reducer injection channel, the injection tube 13 vertically penetrates through the inner cavities of the connecting tube 7, the lower plunger 8 and the stirring tube 12, the injection tube 13 is fixed through an upper fixing ring 12 and a lower fixing ring 15 on the outer wall, and the upper fixing ring 14 and the lower fixing ring 15 are identical in structure; the upper fixing ring 14 is arranged at the top of the inner cavity of the lower plunger 8, and the lower fixing ring 15 is arranged at a step inside the stirring pipe 12; the upper fixing ring 14 comprises an outer ring body 141 and an inner ring body 142 which are concentrically arranged, the outer wall of the injection tube 13 is sleeved with the inner ring body 142, the inner ring body 142 and the outer ring body 141 are connected through connecting rods 143, through holes 144 are arranged between the connecting rods 143, and the through holes 144 are arranged to avoid influencing the vertical circulation of gas.
The channel formed between the outer wall of the medicine injection pipe 13 and the inner wall of the connecting pipe 7, the lower plunger 8 and the stirring pipe 12 is a gas injection channel; the medicine injection pipe 13 integrally moves up and down with the connecting pipe 7, the lower plunger 8 and the stirring pipe 12; the lower end of the drug injection pipe 13 is located above the laval nozzle 16, a cavity between the lower end of the drug injection pipe 13 and the upper end of the laval nozzle 16 is a mixing cavity 17, the mixing cavity 17 is used for mixing a viscosity reducer injected into the drug injection pipe 13 and gas injected into the gas injection channel, and the mixed gas-liquid mixture is injected into an oil layer at a high speed under the action of the laval nozzle 18.
The specific working principle of the invention is as follows:
during the upper stroke, the hollow sucker rod drives the connecting pipe 7 to move upwards, the ring valve 4 is closed, and simultaneously the upper plunger 3 and the lower plunger 8 are driven to move upwards, so that the liquid column above the upper plunger 3 is lifted by the effective stroke length; meanwhile, the offset oil inlet valve 9 is opened, and well fluid enters the pump cavity under the action of sinking pressure;
during the down stroke, the offset oil inlet valve 9 is closed, the ring valve 4 is opened, and the well fluid in the pump cavity is replaced to the position above the upper plunger 3.
The lifting device is of a hollow structure in the whole, and provides a gas injection channel and a medicine injection channel for the exploitation of a heavy oil well respectively, so that a viscosity reducer and gas can directly reach the pump, and the injected gas and the injected viscosity reducer are injected into an oil layer at a high speed under the action of the Laval nozzle 18, thereby solving the problem of poor viscosity reduction effect caused by the fact that the viscosity reducer stays on the surface of the oil layer due to the fact that the viscosity reducer is added to a casing pipe in the prior art; the invention is matched with a pump lower stirring pipe 12 at the same time, the stirring pipe 12 moves up and down along with the lower plunger 8 to generate rotational flow, the mixed liquid of the viscosity reducer and the crude oil is stirred, and the viscosity reduction effect is further improved.
The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (9)
1. The utility model provides an injection-production integrated lifting device which characterized in that: the device comprises an upper pump cylinder (1), a connecting pipe (7) and a drug injection pipe (13) which are sequentially arranged from outside to inside, wherein the lower end of the upper pump cylinder (1) is sequentially provided with a lower pump cylinder (2), a coupling (10) and a cyclone pipe (11); an upper plunger (3) is sleeved outside a main body of the connecting pipe (7), a ring valve (4) is fixedly mounted at the lower end of the upper plunger (3), a valve cover (5) is mounted at the upper end of the upper plunger (3), a blocking cap (6) is further mounted above the upper plunger (3), the blocking cap (6) is fixed on the outer wall of the connecting pipe (7), and a lower plunger (8), a stirring pipe (12) and a laval nozzle (16) are sequentially arranged at the lower end of the connecting pipe (7); the inner cavity of the injection tube (13) is a viscosity reducer injection channel, and a gas injection channel is formed between the outer wall of the injection tube (13) and the inner walls of the connecting tube (7), the lower plunger (8) and the stirring tube (12).
2. The injection-production integrated lifting device of claim 1, wherein: the lower end of the connecting pipe (7) is connected with the top end of the lower plunger (8), the lower plunger (8) is of a hollow structure, the connecting pipe (7) and the lower plunger (8) are coaxially arranged, and the inner cavities of the connecting pipe and the lower plunger are communicated; the diameter of the connecting pipe (7) is larger than that of the lower plunger (8), and a shaft shoulder for limiting is formed at the joint of the connecting pipe (7) and the lower plunger (8); the lower end of the lower plunger (8) is connected with the top end of the stirring pipe (12).
3. The injection-production integrated lifting device of claim 1, wherein: be provided with Laval shower nozzle (16) in the lower tip of agitator pipe (12), agitator pipe (12) inside cavity is provided with in the main part of agitator pipe (12) and is used for playing the arch (121) of stirring effect, and agitator pipe (12) are worn to establish in the inside of whirl pipe (11), and the inside of whirl pipe (11) is provided with whirl passageway (111).
4. The injection-production integrated lifting device of claim 1, wherein: the injection tube (13) vertically penetrates through the inner cavities of the connecting tube (7), the lower plunger (8) and the stirring tube (12), and the injection tube (13) integrally moves up and down with the connecting tube (7), the lower plunger (8) and the stirring tube (12).
5. The injection-production integrated lifting device of claim 1, wherein: the drug injection tube (13) is fixed through an upper fixing ring (14) and a lower fixing ring (15) on the outer wall, and the upper fixing ring (14) and the lower fixing ring (15) are identical in structure; the upper fixing ring (14) is arranged at the top of the inner cavity of the lower plunger (8), and the lower fixing ring (15) is arranged at a step inside the stirring pipe (12); the upper fixing ring (14) comprises an outer ring body (141) and an inner ring body (142) which are concentrically arranged, the outer wall of the medicine injection pipe (13) is sleeved with the inner ring body (142), the inner ring body (142) and the outer ring body (141) are connected through connecting rods (143), and through holes (144) are formed between the connecting rods (143).
6. The injection-production integrated lifting device of claim 1, wherein: the lower end of the medicine injection pipe (13) is positioned above the Laval nozzle (16), and a mixing cavity (17) is arranged between the lower end of the medicine injection pipe (13) and the upper end of the Laval nozzle (16).
7. The injection-production integrated lifting device of claim 1, wherein: the lower end of the upper pump cylinder (1) is connected with the top end of the lower pump cylinder (2) and the inner cavity of the upper pump cylinder is communicated with the inner cavity of the lower pump cylinder; the lower end of the lower pump barrel (2) is connected with the top end of the coupling (10) and the inner cavity of the lower pump barrel is communicated with the inner cavity of the coupling; the lower end of the coupling (10) is connected with the top end of the cyclone tube (11) and the inner cavity of the coupling is communicated.
8. The injection-production integrated lifting device of claim 1, wherein: the low end of the upper pump barrel (1) is provided with a bias oil inlet valve (9), and the bias oil inlet valve (9) is of a ball valve structure.
9. The injection-production integrated lifting device of claim 1, wherein: the upper plunger (3), the ring valve (4) and the connecting pipe (7) move up and down integrally, and the outer wall of the upper plunger (3) is in sliding fit with the inner wall of the upper pump barrel (1) for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355647.1A CN111550216B (en) | 2020-04-29 | 2020-04-29 | Injection-production integrated lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355647.1A CN111550216B (en) | 2020-04-29 | 2020-04-29 | Injection-production integrated lifting device |
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| Publication Number | Publication Date |
|---|---|
| CN111550216A true CN111550216A (en) | 2020-08-18 |
| CN111550216B CN111550216B (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010355647.1A Active CN111550216B (en) | 2020-04-29 | 2020-04-29 | Injection-production integrated lifting device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9014957D0 (en) * | 1990-02-28 | 1990-08-29 | Intevep Sa | System for the production of crude oil by the injection of treatment fluids |
| CN204419560U (en) * | 2014-12-15 | 2015-06-24 | 中国石油化工股份有限公司 | Long-plunger note adopts integral type antiscale pump |
| CN205503108U (en) * | 2016-03-30 | 2016-08-24 | 中国石油化工股份有限公司 | Hollow lifting devices of viscous crude well side direction feed liquor |
| CN209385322U (en) * | 2018-09-07 | 2019-09-13 | 中国石油化工股份有限公司 | A kind of viscous crude dispensing point adopts eccentric oil well pump |
-
2020
- 2020-04-29 CN CN202010355647.1A patent/CN111550216B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9014957D0 (en) * | 1990-02-28 | 1990-08-29 | Intevep Sa | System for the production of crude oil by the injection of treatment fluids |
| CN204419560U (en) * | 2014-12-15 | 2015-06-24 | 中国石油化工股份有限公司 | Long-plunger note adopts integral type antiscale pump |
| CN205503108U (en) * | 2016-03-30 | 2016-08-24 | 中国石油化工股份有限公司 | Hollow lifting devices of viscous crude well side direction feed liquor |
| CN209385322U (en) * | 2018-09-07 | 2019-09-13 | 中国石油化工股份有限公司 | A kind of viscous crude dispensing point adopts eccentric oil well pump |
Non-Patent Citations (1)
| Title |
|---|
| 巩小雄等: "深层稠油天然气吞吐注采一体化技术研究与应用", 《石油天然气学报》 * |
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| CN111550216B (en) | 2021-12-21 |
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