CN206399765U - A kind of closed experimental ring duct device of viscous crude multiphase flow - Google Patents
A kind of closed experimental ring duct device of viscous crude multiphase flow Download PDFInfo
- Publication number
- CN206399765U CN206399765U CN201720007811.3U CN201720007811U CN206399765U CN 206399765 U CN206399765 U CN 206399765U CN 201720007811 U CN201720007811 U CN 201720007811U CN 206399765 U CN206399765 U CN 206399765U
- Authority
- CN
- China
- Prior art keywords
- ball valve
- reaction kettle
- multiphase flow
- pressure reaction
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of closed experimental ring duct device of viscous crude multiphase flow, including gas cylinder, high-temperature high-pressure reaction kettle, screw pump, surge tank, water pot, multiphase flow pump and blender, the gas cylinder, high-temperature high-pressure reaction kettle, ball valve one, screw pump, ball valve two, online-emulsification instrument, ball valve three and surge tank constitute sample system, it is tightly connected between the gas cylinder and high-temperature high-pressure reaction kettle by connecting tube, the multiphase flow pump, blender, ball valve four, ball valve five, ball valve six, first flowmeter, ball valve seven, ball valve eight, ball valve nine, ball valve ten and air bath constitute circuit system, the water pot, ball valve 11, water pump, second flowmeter constitutes flood pattern.The utility model can carry out multiphase circulate experiment, can be while realizing that kinds of experiments flow, on-line period, feature are strong, degree of variation is high, flow is simple, flexible and convenient operation.
Description
Technical field
The utility model is related to viscous crude rheological characteristic technical field, specially a kind of closed experiment circuit dress of viscous crude multiphase flow
Put.
Background technology
At present, the huge investment at exploitation of oil-gas field initial stage can be reduced using mixed transportation of oil and gas technology, in recent years, with stone
Exploration activity is developed to ocean and Desert of Gobi transfer, and the research defeated to mixed transportation of oil and gas collection is increasingly deep.Deep water petroleum resources are big
Scale development, oil gas water multi-phase mixed delivering has obvious economic and social benefit, and it is development trend to build sea multiphase pipeline.It is many
Mutually stream TT＆C system, can provide the research and development of three-phase mixed transferring technical know-how science data according to analysis.Many flourishing states
Family is all ground in the experiment that oil gas water three phase hydrodynamics is carried out using high-caliber experiment circuit and advanced instrument and meter
Study carefully, external sea multiphase pipeline construction achieves significant progress, and China is oily, the research of gas and water triphase flow pattern is also in primary
In the stage, not yet form ripe theoretical.Because there is very big difference, particularly viscous crude in the flow behavior and crude oil pipeline of three-phase mixed transferring
With the two-phase flow of water, under different flow conditions, such as before and after Flow Injection Chemiluminescence Method, great variety occurs for profit system, even if
Flow is basically unchanged, and piping loss can also differ tens times of even hundred times, thus in the mistake of exploitation, conveying and processing and utilization
There is a series of problems in journey.In addition, when transport of thick oil and waxy oil, the flow behavior of crude oil pipeline is sufficiently complex.Due to
Ocean temperature is low, and the crude oil in pipeline is gradually cooled down in flow process, when tube wall temperature reaches the drop out point temperature of wax, wax
Molecule setting in motion.The deposition of wax produces concentration ladder between causing the dissolving wax on the dissolving wax and tube wall at turbulent flow center
Degree.Due to the presence of concentration difference, the wax molecule of dissolving and the wax recovery separated out will be deposited on tube wall.Viscous crude, content of wax oil gas
Water mixed delivery technology is also needed to be studied.Therefore, research viscous crude multiphase flow flow behavior has important guiding meaning to Practical Project
Justice.
For research oil gas water multiphase flow behavior, it is (white that RESINA LIQUIDAMBARIS FORMOSANAE proposes a kind of oil-water two-phase flow experimental ring duct device
Experimental study [D] the China University Of Petroleum Beijing of oil-water two-phase flow, 2007, P8-11. in cloud perfume horizontal tubes).Utilize oil tank, water pot
Profit injection is carried out, profit enters experimental channel after being mixed in two-phase mixtures device.Experimental channel gathers flow regime parameter number
According to rear, oil-water two-phase flow inflow oil water separator progress water-oil separating, oil tank and water pot are reentered after water-oil separating.It is present
Subject matter is to be only applicable to oil-water two-phase flow experiment, it is impossible to test oil air water three-phase mixed transferring flow behavior.Profit unidirectionally flows
ON-LINE SEPARATION after dynamic, can not be circulated, and experiment gathered data is unstable.Meanwhile, profit injects circuit using blender mixing,
The flow behavior of water-oil emulsion can not be studied.
Utility model content
The purpose of this utility model is to provide a kind of viscous crude multiphase flow closed experimental ring duct device, to solve above-mentioned background
The problem of being proposed in technology, is had an advantageous effect in that：The device can carry out multiphase circulate experiment, can be while realizing many
Plant experiment flow, on-line period, feature is strong, degree of variation is high, flow is simple, flexible and convenient operation.
To achieve the above object, the utility model provides following technical scheme：A kind of closed experiment circuit of viscous crude multiphase flow
Device, including gas cylinder, high-temperature high-pressure reaction kettle, screw pump, surge tank, water pot, multiphase flow pump and blender, the high pressure
Gas cylinder, high-temperature high-pressure reaction kettle, ball valve one, screw pump, ball valve two, online-emulsification instrument, ball valve three and surge tank constitute sample
System, is tightly connected between the gas cylinder and high-temperature high-pressure reaction kettle by connecting tube, on the high-temperature high-pressure reaction kettle
Side, which is provided between motor, and motor and power transmission shaft, is provided with decelerator, and the power transmission shaft is with being arranged on high-temperature high-pressure reaction kettle
Rotated and connected by shaft coupling between the rotating shaft of inner chamber, stirring flabellum, the high-temperature high-pressure reaction kettle are installed in the rotating shaft
On pressure sensor is installed, and the outer surface of high-temperature high-pressure reaction kettle is provided with peripheral chuck, the high-temperature high-pressure reaction kettle
Outlet and online-emulsification instrument entrance between be tightly connected by connecting tube, between the screw pump and high-temperature high-pressure reaction kettle
The connecting tube for being provided with ball valve one by top is connected, and the exit parallel connection of the screw pump is provided with ball valve two and ball valve three, ball
The input of valve two is connected with the output end of online-emulsification instrument, is then connected with high-temperature high-pressure reaction kettle, forms partial circulating loop,
The multiphase flow pump, blender, ball valve four, ball valve five, ball valve six, first flowmeter, ball valve seven, ball valve eight, ball valve nine, ball valve
Ten and air bath constitute circuit system, the ball valve three is connected with surge tank, the ball valve four, ball valve six for it is in parallel even
Connect, one end is connected with surge tank, two ends of the other end respectively with ball valve five are connected, formed and be in parallel connection with surge tank
Pipeline is connected, and the arrival end of the multiphase flow pump is connected with ball valve five, and the port of export and the arrival end of blender of multiphase flow pump
It is connected, another arrival end of the blender is connected with flood pattern, and the first flowmeter is connected with the port of export of blender,
The water pot, ball valve 11, water pump, second flowmeter constitute flood pattern, are set between the water pot and water pump by top
The connecting tube for being equipped with ball valve 11 is tightly connected, and second flowmeter is provided between the water pump and air bath.
It is preferred that, circuit, the output end of the ball valve six and taking online on circuit branch road are provided with the air bath
The input of sampling device is connected, on-line period device have input be serially connected with output end together with ball valve seven, ball valve
8th, ball valve nine and ball valve ten are constituted.
It is preferred that, it is provided with the air bath on circuit and is provided with some pressure sensors, temperature sensor.
It is preferred that, the surge tank top is provided with pressure sensor, for monitoring buffering pressure inside the tank.
It is preferred that, the blender is internally provided with hybrid chamber.
Compared with prior art, the beneficial effects of the utility model are：This close experimental ring duct device can realize viscous crude it is single-phase,
Water-oil phase, oil gas water three phase circulate experiment.The single-phase body of viscous crude is prepared using high-temperature high-pressure reaction kettle and partial circulating loop
System, oil water two phase system, oil gas water mixed phase system, screw pump driving circular fluidic flow；Using high-temperature high-pressure reaction kettle and mixed
Clutch can realize that water-oil emulsion is circulated and circulate two kinds of experiment flows with water-oil phase on-line mixing.Surge tank is in parallel
There is horizontal pipeline, more tank sealing and circulating flowing can be achieved；Circuit is provided with on-line period device, realizes that the online of flow of fluid takes
Sample, the system status that can reflect during Real Flow Field.Therefore, device have can carry out multiphase circulate experiment, can be simultaneously
Realize that kinds of experiments flow, on-line period, feature are strong, degree of variation is high, flow is simple, flexible and convenient operation the features such as.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model high-temperature high-pressure reaction kettle；
Fig. 3 is the installation diagram of the utility model blender.
In figure：1- gas cylinders；2- high-temperature high-pressure reaction kettles；3- ball valves one；4- screw pumps；5- ball valves two；6- is newborn online
Change instrument；7- ball valves three；8- surge tanks；9- water pots；10- ball valves 11；11- water pumps；12- second flowmeters；13- ball valves four；14-
Ball valve five；15- ball valves six；16- multiphase flow pumps；17- blenders；18- first flowmeters；19- ball valves seven；20- ball valves eight；21-
Ball valve nine；22- ball valves ten；23- air baths；24- motors；25- decelerators；26- pressure sensors；27- power transmission shafts；28- shaft couplings
Device；29- rotating shafts；30- stirs flabellum；31- peripheries chuck；32- connecting tubes；33- hybrid chambers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-3, a kind of embodiment that the utility model is provided：A kind of closed experiment circuit dress of viscous crude multiphase flow
Put, including gas cylinder 1, high-temperature high-pressure reaction kettle 2, screw pump 4, surge tank 8, water pot 9, multiphase flow pump 16 and blender 17,
Gas cylinder 1, high-temperature high-pressure reaction kettle 2, ball valve 1, screw pump 4, ball valve 25, online-emulsification instrument 6, ball valve 37 and surge tank
8 constitute sample system, are tightly connected between gas cylinder 1 and high-temperature high-pressure reaction kettle 2 by connecting tube 32, high temperature high pressure reverse
Answer the top of kettle 2 to be provided between motor 24, and motor 24 and power transmission shaft 27 and decelerator 25 is installed, power transmission shaft 27 is with being arranged on height
Rotated and connected by shaft coupling 28 between the rotating shaft 29 of the warm inner chamber of autoclave 2, stirring flabellum 30 is installed in rotating shaft 29, it is high
Pressure sensor 26 is installed on warm autoclave 2, and the outer surface of high-temperature high-pressure reaction kettle 2 is provided with peripheral chuck 31,
It is tightly connected between the outlet of high-temperature high-pressure reaction kettle 2 and the entrance of online-emulsification instrument 6 by connecting tube 32, screw pump 4 and height
The connecting tube 32 for being provided with ball valve 1 by top between warm autoclave 2 is connected, and the exit parallel connection of screw pump 4 is provided with
Ball valve 25 and ball valve 37, the input of ball valve 25 are connected with the output end of online-emulsification instrument 6, then with high-temperature high-voltage reaction
Kettle 2 is connected, and forms partial circulating loop, multiphase flow pump 16, blender 17, ball valve 4 13, ball valve 5 14, ball valve 6 15, first-class
Gauge 18, ball valve 7 19, ball valve 8 20, ball valve 9 21, ball valve 10 and air bath 23 constitute circuit system, ball valve 37 with
Surge tank 8 is connected, and ball valve 4 13, ball valve 6 15 is are connected in parallel, and one end is connected with surge tank 8, the other end respectively with ball valve
5 14 two ends are connected, and form the pipeline for being in parallel connection with surge tank 8 and are connected, arrival end and the ball valve five of multiphase flow pump 16
14 are connected, and the port of export of multiphase flow pump 16 is connected with the arrival end of blender 17, another arrival end of blender 17 and water filling
System is connected, and first flowmeter 18 is connected with the port of export of blender 17, water pot 9, ball valve 11, water pump 11, second flow
Meter 12 constitutes flood pattern, and the connecting tube 32 that top is provided with ball valve 11 between water pot 9 and water pump 11, which is sealed, to be connected
Connect, be provided between water pump 11 and air bath 23 in second flowmeter 12, air bath 23 and be provided with circuit, the output of ball valve 6 15
End is connected with the input of the on-line period device on circuit branch road, and on-line period device is mutually gone here and there by input with output end
Ball valve 7 19, ball valve 8 20, ball valve 9 21 and the ball valve 10 being linked togather are constituted, and are provided with circuit and are set in air bath 23
There are some pressure sensors 26, temperature sensor, the top of surge tank 8 is provided with pressure sensor 26, for monitoring the internal pressure of surge tank 8
Power, blender 17 is internally provided with hybrid chamber 33.
Operation principle:In use, circuit pressurizes：All ball valves are opened, ball valve 11 is closed.Open gas cylinder by circuit,
The inflating pressure of surge tank 8 closes ball valve 37 to experimental pressure.
The preparation of water-oil emulsion：By in a certain amount of crude oil and water injection high-temperature high-pressure reaction kettle 2, ball valve 37 is closed,
Open ball valve 1, ball valve 25；Screw pump 4, online-emulsification instrument 6 and the motor 24 on the top of high-temperature high-pressure reaction kettle 2 is opened to pass through
Decelerator 25 drives the stirring flabellum 30 in rotating shaft 29 to rotate, and carries out the online-emulsification of profit, after circulation certain time, profit breast
Prepared by shape liquid completes.
It is prepared by oil gas water mixed phase system：Ball valve 1, ball valve 25, ball valve 37 are closed, gas cylinder 1 is opened high to high temperature
Press a certain amount of gas of injection in reactor 2, after the completion of gas injection, open the upper motor 24 of high-temperature high-pressure reaction kettle 2, increase gas-liquid and connect
Contacting surface accumulate, speed up gas and liquid balance, when kettle internal pressure try hard to keep hold it is constant after think oil gas water mixed phase system prepare completion.
Oil gas water mixed phase system circulates experiment：Ball valve 25, ball valve 11 are closed, ball valve 1, ball valve three is opened
7, into surge tank 8, injection prepares the oil gas water mixed phase system completed, closes ball valve 37.Ball valve 4 13, ball valve 5 14 are opened,
Ball valve 6 15 is closed, it is full of circuit using the driving of multiphase flow pump 16 oil gas water mixed phase system, closes ball valve 4 13, carry out oil
Air water mixed phase system sealing and circulating flowing experiment, experimental data is gathered along line pressure sensor 26, temperature sensor.
Water-oil phase on-line mixing circulates experiment：A certain amount of crude oil is injected and is heated in high-temperature high-pressure reaction kettle 2
Experimental temperature, closes ball valve 25, ball valve 4 13, ball valve 6 15, opens ball valve 1, ball valve 37, using screw pump 4 by crude oil
It is pumped into surge tank 8, closes ball valve 37, opens ball valve 4 13, ball valve 11, crude oil is pumped into ring using multiphase flow pump 16
Water is pumped into circuit by road, water pump 11.Profit is mixed at blender 17, after oil-water two-phase flow is full of circuit, closes ball valve four
13rd, water pump 11, carry out water-oil phase on-line mixing and circulate experiment, gather real along line pressure sensor 26, temperature sensor
Test data.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (5)
1. a kind of closed experimental ring duct device of viscous crude multiphase flow, including gas cylinder (1), high-temperature high-pressure reaction kettle (2), screw pump
(4), surge tank (8), water pot (9), multiphase flow pump (16) and blender (17), it is characterised in that：The gas cylinder (1), height
Warm autoclave (2), ball valve one (3), screw pump (4), ball valve two (5), online-emulsification instrument (6), ball valve three (7) and surge tank
(8) sample system is constituted, is sealed and connected by connecting tube (32) between the gas cylinder (1) and high-temperature high-pressure reaction kettle (2)
Connect, high-temperature high-pressure reaction kettle (2) top, which is provided with to be provided between motor (24), and motor (24) and power transmission shaft (27), to be subtracted
Fast device (25), the power transmission shaft (27) and is arranged between the rotating shaft (29) of high-temperature high-pressure reaction kettle (2) inner chamber by shaft coupling
(28) rotate to be provided with connection, the rotating shaft (29) on stirring flabellum (30), the high-temperature high-pressure reaction kettle (2) and pressure is installed
Force snesor (26), and the outer surface of high-temperature high-pressure reaction kettle (2) is provided with peripheral chuck (31), the high-temperature high-pressure reaction kettle
(2) it is tightly connected between outlet and the entrance of online-emulsification instrument (6) by connecting tube (32), the screw pump (4) and high temperature
The connecting tube (32) for being provided with ball valve one (3) by top between autoclave (2) is connected, the outlet of the screw pump (4)
Place is in parallel to be provided with ball valve two (5) and ball valve three (7), and the input of ball valve two (5) is connected with the output end of online-emulsification instrument (6),
Then it is connected with high-temperature high-pressure reaction kettle (2), forms partial circulating loop, the multiphase flow pump (16), blender (17), ball valve four
(13), ball valve five (14), ball valve six (15), first flowmeter (18), ball valve seven (19), ball valve eight (20), ball valve nine (21), ball
Valve ten (22) and air bath (23) constitute circuit system, and the ball valve three (7) is connected with surge tank (8), the ball valve four
(13), ball valve six (15) is is connected in parallel, and one end is connected with surge tank (8), the two ends phase of the other end respectively with ball valve five (14)
Even, form the pipeline for being in parallel connection with surge tank (8) to be connected, arrival end and the ball valve five (14) of the multiphase flow pump (16)
It is connected, and the port of export of multiphase flow pump (16) is connected with the arrival end of blender (17), another entrance of the blender (17)
End is connected with flood pattern, and the first flowmeter (18) is connected with the port of export of blender (17), the water pot (9), ball valve
11 (10), water pump (11), second flowmeter (12) constitute flood pattern, pass through between the water pot (9) and water pump (11)
The connecting tube (32) that top is provided with ball valve 11 (10) is tightly connected, and is set between the water pump (11) and air bath (23)
There is second flowmeter (12).
2. the closed experimental ring duct device of a kind of viscous crude multiphase flow according to claim 1, it is characterised in that：The air bath
(23) circuit is provided with, the output end of the ball valve six (15) is connected with the input of the on-line period device on circuit branch road
Connect, on-line period device by input be serially connected with output end together with ball valve seven (19), ball valve eight (20), ball valve nine
(21) constituted with ball valve ten (22).
3. the closed experimental ring duct device of a kind of viscous crude multiphase flow according to claim 1, it is characterised in that：The air bath
(23) it is provided with circuit and is provided with some pressure sensors (26), temperature sensor.
4. the closed experimental ring duct device of a kind of viscous crude multiphase flow according to claim 1, it is characterised in that：The surge tank
(8) top is provided with pressure sensor (26), for monitoring surge tank (8) interior pressure.
5. the closed experimental ring duct device of a kind of viscous crude multiphase flow according to claim 1, it is characterised in that：The blender
(17) be internally provided with hybrid chamber (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720007811.3U CN206399765U (en) | 2017-01-05 | 2017-01-05 | A kind of closed experimental ring duct device of viscous crude multiphase flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720007811.3U CN206399765U (en) | 2017-01-05 | 2017-01-05 | A kind of closed experimental ring duct device of viscous crude multiphase flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399765U true CN206399765U (en) | 2017-08-11 |
Family
ID=59517306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720007811.3U Expired - Fee Related CN206399765U (en) | 2017-01-05 | 2017-01-05 | A kind of closed experimental ring duct device of viscous crude multiphase flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206399765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426605A (en) * | 2020-04-25 | 2020-07-17 | 中国石油大学(华东) | High-temperature high-pressure three-phase fluid dynamic rheometer and method |
| CN117309653A (en) * | 2023-09-14 | 2023-12-29 | 北京科技大学 | Array visual multiphase flow loop pipeline test device |
-
2017
- 2017-01-05 CN CN201720007811.3U patent/CN206399765U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426605A (en) * | 2020-04-25 | 2020-07-17 | 中国石油大学(华东) | High-temperature high-pressure three-phase fluid dynamic rheometer and method |
| CN111426605B (en) * | 2020-04-25 | 2022-09-02 | 中国石油大学(华东) | High-temperature high-pressure three-phase fluid dynamic rheometer and method |
| CN117309653A (en) * | 2023-09-14 | 2023-12-29 | 北京科技大学 | Array visual multiphase flow loop pipeline test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105043933B (en) | A kind of high parameter fracturing fluid property test evaluation device | |
| CN107638715B (en) | Surface agent solution gathering ground injection system suitable for mine field and injection method thereof | |
| CN206329293U (en) | One kind simulation gas hydrates horizontal well drilling full hole takes rock experimental provision | |
| CN208187454U (en) | A kind of oil-water two-phase flow experiment loop device | |
| CN106556506B (en) | Measure the device of flow pattern in supercritical carbon dioxide fracturing fracture | |
| CN206399765U (en) | A kind of closed experimental ring duct device of viscous crude multiphase flow | |
| CN104234708A (en) | Multifunctional shaft oil-gas-water multi-phase flow simulation experiment device | |
| CN204113282U (en) | A kind of multi-functional pit shaft oil gas water multiphase analogue experiment installation | |
| CN104374878A (en) | Experimental device for forming hydrate in combined multi-phase fluid pipeline | |
| CN110044783B (en) | High-pressure oil-gas-water pipe flow wax deposition simulation experiment device | |
| CN110361160A (en) | A kind of controllable temperature pressure control oil gas water consolidates multiphase conveyance conduit imitative experimental appliance | |
| CN208818608U (en) | A kind of oil-gas-water three-phase flow flow behavior test device | |
| CN206045936U (en) | A kind of automatic matching device of drilling fluid additive | |
| CN203420706U (en) | Variable-angle horizontal well simulation experiment device | |
| CN105675847B (en) | A kind of fracturing fluid hangs sand capacity test system and method | |
| CN205280701U (en) | Defeated defoaming evaluation device of natural gas collection | |
| RU2641337C1 (en) | Stand for simulating process of inclined-directed gas-liquid flows | |
| CN203811507U (en) | Large multifunctional fracturing fluid experiment device | |
| CN203685150U (en) | Microorganism oil displacement injection agent and air onsite injection device | |
| CN211043382U (en) | Device for simulating exploitation of natural gas hydrate by energy coupling | |
| CN209261533U (en) | A kind of visualization device of heavy crude reservoir nitrogen/carbon dioxide assisted steam flooding | |
| CN216691417U (en) | Oil-gas-water three-phase mixed transportation pump test system | |
| CN204283341U (en) | A kind of sucker rod pump sealing and circulating water mixing wax-proofing apparatus | |
| CN106645279A (en) | Liquid-solid two-phase pulsating flow heat transfer property experiment device | |
| CN110658330A (en) | Device for simulating exploitation of natural gas hydrate by energy coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20180105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |