CN206378268U - Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying - Google Patents
Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying Download PDFInfo
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- CN206378268U CN206378268U CN201720065290.7U CN201720065290U CN206378268U CN 206378268 U CN206378268 U CN 206378268U CN 201720065290 U CN201720065290 U CN 201720065290U CN 206378268 U CN206378268 U CN 206378268U
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Abstract
The utility model discloses the experimental provision that bend pipe sand plug in a kind of marine oil and gas course of conveying and standpipe take sand, including standpipe section, bend loss plus silo, air supply system, water system and data collecting system and sand grains motion monitoring system；Standpipe section and integrated " L " the type pipeline section of bend loss, air supply system and water system are connected with air and liquid mixer, gaza's tank, bend loss and standpipe section are sequentially connected after air and liquid mixer, data collecting system is used to respectively be acquired the pressure signal in supply air line, gas-liquid mixed pipeline, bend loss and standpipe section, and sand grains motion monitoring system is used to be monitored the sand grains state in bend loss and standpipe section.The utility model measures the motion conditions of the sand grains of different-grain diameter according to different conveying operating modes, sand grains blocks condition required when being restarted after bend pipe under the conditions of obtaining equidimension simultaneously, the risk assessment for occurring sand plug for pipeline under different conveying operating modes provides foundation, realizes the safe efficient production run of marine oil and gas.
Description
Technical field
The utility model belongs to bend pipe in marine oil and gas production technique field, more particularly to a kind of marine oil and gas course of conveying
Sand plug and standpipe take the experimental provision of sand.
Background technology
Submarine oil natural gas is in recovery process, after being filtered by wellhead equipment, is still carried in well stream medium micro-
Small sand grains and minimum gas, with the change of course of conveying flowing velocity and the direction of motion, especially when flow rate of liquid compared with
Hour, sand grains is easily deposited in the larger bend loss of subsequent pipeline course of conveying mean curvature and standpipe section, can be caused when serious
Block, the normal production of influence.
In addition, the deposition characteristics of particle are influenceed significantly, to determine that medium carries the motion shape of sand grains by the flow behavior of medium
Condition, media security operation defeated for pipe is significant.Therefore the fluid sand-carrying energy for submarine pipeline course of conveying is needed
Power and sand deposition characteristics carry out detailed experimental study, determine that conveyance conduit silt carrying capacity, sand plug restart required condition etc. and be
The risk assessment that sand plug occurs for pipeline specific location under difference conveying operating mode provides foundation.
Utility model content
The problem of taking sand for bend pipe sand plug in marine oil and gas course of conveying and standpipe, the utility model provides a kind of ocean
Bend pipe sand plug and standpipe take the experimental provision of sand during oil-gas transportation, and the sand of different-grain diameter is measured according to different conveying operating modes
The motion conditions of grain, while condition required when obtaining restarting after sand grains is blocked under the conditions of equidimension bend loss, is different
Convey pipeline under operating mode and the risk assessment offer foundation of sand plug is provided, realize the safe efficient production run of marine oil and gas.
In order to realize above-mentioned functions, the utility model patent employs following technical scheme：
Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, including standpipe section, bend loss,
Plus silo, air supply system, water system and data collecting system and sand grains motion monitoring system；The standpipe section and bend loss
Integrated " L " type pipeline section, the air supply system and water system are connected with air and liquid mixer, after the air and liquid mixer
Gaza's tank, bend loss and standpipe section are sequentially connected, the data collecting system is used for respectively to supply air line, gas-liquid mixed pipe
Pressure signal in road, bend loss and standpipe section is acquired, and the sand grains motion monitoring system is used for bend loss and standpipe
Sand grains state in section is monitored.
Preferably, the air supply system includes compressor and supply air line, and the compressor is connected successively by supply air line
It is connected to surge tank and gas flowmeter and first pressure transmitter；
The water system includes water tank and supply channel, and the water tank is connected with centrifugation in turn by supply channel
Pump and fluid flowmeter；
The gas-liquid that the supply air line and supply channel are provided is mixed by air and liquid mixer, on the gas-liquid mixed pipeline
Be provided with second pressure transmitter, gas-liquid mixed pipeline is connected with gaza's tank afterwards, gaza's tank successively again connecting bending pipeline section
With standpipe section；
First gaza's funnel of the first ball valve control is provided with above gaza's tank, gaza's tank, which is internally provided with, to be stirred
Mix device；
The standpipe section top is provided with second gaza's funnel of the second ball valve control, bend loss and the standpipe section
On be disposed with the 3rd pressure transmitter, the 4th pressure transmitter, the 5th pressure transmitter, the 6th pressure transmitter and the 7th
The 5th pressure transmitter in pressure transmitter, correspondence standpipe section, the 6th pressure transmitter and the 7th pressure transmitter according to
It is secondary to be provided with lower sample cock, middle sample cock and upper sample cock in standpipe section, also set up scale in standpipe section
Scale；Outlet of the medium at the top of the standpipe section, which is provided with the return pipe road connected with water tank, the return pipe road, to be provided with
Screening plant；
The data collecting system includes data collecting card, the data collecting card respectively with first pressure transmitter, the
Two pressure transmitters, the 3rd pressure transmitter, the 4th pressure transmitter, the 5th pressure transmitter, the 6th pressure transmitter and
Seven pressure transmitters pass through connection；
The sand grains motion monitoring system includes high-speed camera, and the high-speed camera is used in experimentation to curved
Sand grains motion conditions in pipeline section and standpipe section carry out production monitoring.
Preferably, on the supply air line of the air supply system, set between the compressor and the surge tank on pipeline
The first valve is equipped with, the second valve, the first pressure is provided between the surge tank and the gas flowmeter on pipeline
The 3rd valve is provided between transmitter and the air and liquid mixer on pipeline；On the supply channel of the water system, institute
State and be provided with the 4th valve between water tank and the centrifugal pump on pipeline, managed between the centrifugal pump and the fluid flowmeter
The 5th valve is provided with road, the 6th valve is provided between the fluid flowmeter and the air and liquid mixer on pipeline.
Preferably, the bend loss, standpipe section and add silo use transparent organic glass pipe.
Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, and it studies standpipe lifting sand experiment
Method and step be：
Step one：When initial, the valve of whole experimental provision is full of gas all in closed mode, and in whole experimental provision
Body；First, the water opened successively in the 4th valve, the 5th valve and the 6th valve, water tank is first laggard by centrifugal pump
Enter to add silo, bend loss and standpipe section in；Next, it is vertical that the slow lift for adjusting centrifugal pump maintains the liquid level in standpipe section
More than the graduated scale of pipeline section and no water is entered in screening plant；Furthermore, the first ball valve of slow regulation makes to add in silo
Gas is all released, according to whether there is the entrance of gas, and the first valve, the second valve, the 3rd valve and fast are opened in selection successively
Speed opens compressor regulation tolerance, has stable tolerance to be entered by bend loss in standpipe section after a period of time；Finally, beat
Open data collecting card and high-speed camera, start recording second pressure transmitter, the 3rd pressure transmitter, the 4th pressure inverting
Device, the 5th pressure transmitter, the data of the 6th pressure transmitter and the 7th pressure transmitter；
Step 2：First, the second ball valve is opened, the sand grains suspension of the certain solubility of certain particle diameter configured is passed through the
Two add sand hopper to be added in standpipe section, are then turned off the second ball valve, pass through the fortune that high-speed camera observes standpipe section sand grains
Emotionally condition, when being deposited to standpipe section bottom under sand grains, adjusts centrifugal pump and slowly changes fluid flow, while passing through data acquisition
Block the pressure transmitters of standpipe Duan Shang five, the 6th pressure transmitter, the pressure information and height of the 7th pressure transmitter collected
The production monitoring information of grains of sand situation in fast video camera opposition pipeline section and observe standpipe with reference to the graduated scale in standpipe section
The motion conditions of section sand grains, obtain the movement velocity of sand grains by the time of different graduation marks, and then sentence by measuring sand grains
Whether disconnected sand grains balances in standpipe section；Secondly, lower sample cock, middle sample cock and the upper sampling in standpipe section are opened respectively
Sand grains in valve opposition pipeline section at diverse location enters shape sampling, then measures in standpipe section diverse location sand grains in different time
The change of solubility, then its corresponding liquid phase flow rate is the sized particles corresponding critical flow velocity under the concentration；Finally, to data
The pressure signal of data collecting card collection, video, the sand grains characteristics of motion that measures and the critical flow velocity of high-speed camera production with
And the solubility change of collection makes a record.
Step 3：After step 2 terminates, readjust centrifugal pump and increase liquid measure, remaining sand grains in standpipe section is carried
Go out, then repeat step one, open the second ball valve and different-grain diameter and solubility are added into standpipe section by second plus sand hopper
Sand grains carry out next group of experiment, then repeat step two.
Preferably, the remaining sand grains carried away in above-mentioned steps three from standpipe section passes through the medium flow field at the top of standpipe section
The screening plant exported to up on return pipe road is sieved, and sand grains is separated, and current are returned in water tank and recycled.
Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, and it studies the experiment of bend pipe sand plug
Method and step be：
Step one：When initial, the valve of whole experimental provision is full of gas all in closed mode, and in whole experimental provision
Body；First, the water opened successively in the 4th valve, the 5th valve and the 6th valve, water tank is successively entered by centrifugal pumping
To add silo, bend loss and standpipe section in；Secondly, the lift of slow regulation centrifugal pump makes the liquid level in standpipe section maintain standpipe
Section graduated scale more than and no water enter in screening plant；Furthermore, the first ball valve of slow regulation makes to add the gas in silo
Body is all released；Finally, data collecting card and high-speed camera are opened, the pressure transmitter of start recording the 4th, the 5th pressure become
Send the data of device, the 6th pressure transmitter and the 7th pressure transmitter；
Step 2：First, the second ball valve is opened, an a certain amount of scale is added into standpipe section by second plus sand hopper
Very little sand grains suspension, until standpipe section bottom bend loss 34 is blocked completely；Secondly, regulation centrifugal pump increase frequency, when curved
When the pressure of pipeline section upstream reaches certain value, the pipeline of bend loss will be opened；Again, regulation centrifugal pump continues to increase liquid flow
Amount, observes pipe diameter after lower stabilization different in flow rate and changes, and record data；Finally, in whole experiment process data adopt
Second pressure transmitter that truck is collected, the 3rd pressure transmitter, the 4th pressure transmitter, the 5th pressure transmitter, the 6th
The pressure information of pressure transmitter and the 7th pressure transmitter is analyzed, and obtains the critical pressure differential that pipeline is opened under the operating mode；
Step 3：Change the particle diameter of sand grains and the amount of sand grains, repeat step one is obtained under different operating modes, bend pipe sand plug weight
Open the pressure difference data of needs and the delta data of pipe diameter；
Step 4：After experiment terminates, gas-liquid flow is increased, remaining sand grains is carried out into bend loss.
Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, and it is studied plus silo sand plug is real
The method and step tested is：
Step one：When initial, the valve of whole experimental provision is all in closed mode；First, the first ball valve is opened, by the
One adds sand hopper adds a certain amount of certain size to adding sand suspension liquid in silo until blocking the inlet duct for adding silo；Its
It is secondary, the 4th valve, the 5th valve, the 6th valve and the first valve, the second valve, the 3rd valve are opened successively, and adjust gas-liquid
Flow is certain value, until pipeline opening and stably；Furthermore, pipe diameter after stabilization under the different operating modes of regulation gas-liquid discharge record
Size；Finally, to the second pressure transmitter that data collecting card is collected in whole experiment process, the 3rd pressure transmitter,
4th pressure transmitter, the 5th pressure transmitter, the pressure information of the 6th pressure transmitter and the 7th pressure transmitter are divided
Analysis, obtains maximum differential pressure when pipeline is opened；
Step 2：Change the particle diameter of sand grains and the amount of sand grains, repeat step one is obtained under different operating modes, plus silo sand plug
Restart the pressure difference data of needs；
Step 3：After experiment terminates, agitator is opened, air flow quantity is opened, remaining sand grains is cleared out of plus silo.
Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, and it is studied plus silo and bend pipe
Sand plug experiment method and step be：
Simultaneously plus sand plug plug bend loss and plus silo, adjust gas-liquid flow, obtain the pressure data and not when pipeline is opened
Pipe diameter size variation during with flow velocity.
Preferably, the medium used in above-mentioned whole experiment process is water, air and quartz sand.
The beneficial effects of the utility model are：The motion feelings of the sand grains of different-grain diameter are measured according to different conveying operating modes
Condition, while obtaining sand grains under the conditions of equidimension blocks condition required when being restarted after bend loss, it is different convey under operating modes
The risk assessment that sand plug occurs for pipeline provides foundation, realizes the safe efficient production run of marine oil and gas.Specifically, by carrying
The experimental provision of sand is taken for bend pipe sand plug in a kind of marine oil and gas course of conveying and standpipe, and oil-gas transportation mistake is obtained by experiment
Cheng Zhong, the motion conditions of small sand grains measure motion state during different-grain diameter sand grains balance, with oil-gas transportation standpipe equidimension
Bend pipe and plus silo difference sand plug and coupling influence, obtain the time required to sand plug is restarted under correspondence flow velocity, before and after sand plug device
The change of pressure difference change, pipe diameter size etc., prop-carrying capacity and sand deposition characteristics to course of conveying fluids within pipes are carried out
Detailed experimental study, determines that standpipe silt carrying capacity, husky condition required for restarting etc. of blocking up occur for pipeline under different conveying operating modes
The risk assessment of sand plug provides foundation.
Brief description of the drawings
Fig. 1 is that the principle of the experimental provision that bend pipe sand plug and standpipe take sand in the utility model marine oil and gas course of conveying is shown
It is intended to；
Fig. 2 is the concrete structure schematic diagram of Fig. 1 plus silo sand；
Fig. 3 is the concrete structure schematic diagram of bend loss and standpipe section in Fig. 1.
Wherein：1- compressors, the valves of 2- first, 3- surge tanks, the valves of 4- second, 5- gas flowmeters, the valves of 6- the 3rd,
7- first pressure transmitters, the valves of 8- the 4th, 9- centrifugal pumps, the valves of 10- the 5th, 11- fluid flowmeters, the valves of 12- the 6th,
13- air and liquid mixers, 14- second pressure transmitters, 15- adds silo, the pressure transmitters of 16- the 3rd, the pressure invertings of 17- the 4th
Sample cock under device, the ball valves of 18- first, 19- first plus sand hopper, the pressure transmitters of 20- the 5th, 21-, the pressure of 22- the 6th becomes
Send sample cock in device, 23-, 24- graduated scales, the pressure transmitters of 25- the 7th, the upper sample cocks of 26-, the ball valves of 27- second,
28- second plus sand hopper, 29- high-speed cameras, 30- screening plants, 31- water tanks, 32- data collecting cards, 33- agitators,
34- bend loss, 35- standpipes section.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is that the principle of the experimental provision that bend pipe sand plug and standpipe take sand in the utility model marine oil and gas course of conveying is shown
It is intended to；Fig. 2 is the concrete structure schematic diagram of Fig. 1 plus silo sand；Fig. 3 is the concrete structure signal of bend loss and standpipe section in Fig. 1
Figure.
As Figure 1-3, bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, including vertical
Pipeline section 35, bend loss 34 plus silo 15, air supply system, water system and data collecting system and sand grains motion monitoring system；
Its neutral tube section 35 and integrated " L " the type pipeline section of bend loss 34, and air supply system and water system with air and liquid mixer 13
It is connected, gaza's tank 15, bend loss 34 and standpipe 35, the i.e. upstream of bend loss 34 of section is sequentially connected after air and liquid mixer 13 with adding
Husky tank 15 is connected, and the downstream of bend loss 34 is connected with standpipe section 35；Wherein data collecting system is used for respectively to supply air line, gas
Pressure signal in liquid mixed pipe line, bend loss 34 and standpipe section 35 is acquired, and sand grains motion monitoring system is used for curved
Sand grains state in pipeline section 34 and standpipe section 35 is monitored.
Preferably, air supply system includes compressor 1 and supply air line, and wherein compressor 1 is sequentially connected by supply air line
There are surge tank 3 and gas flowmeter 5 and first pressure transmitter 7；
Water system includes water tank 31 and supply channel, and wherein water tank 31 is connected with centrifugation in turn by supply channel
Pump 9 and fluid flowmeter 11；
The gas-liquid that supply air line and supply channel are provided is mixed by air and liquid mixer 13, is provided with gas-liquid mixed pipeline
Second pressure transmitter 14, gas-liquid mixed pipeline is connected with gaza's tank 15 afterwards, and the connecting bending pipeline section 34 successively of gaza's tank 15
With standpipe section 35；
The top of gaza's tank 15 is provided with first gaza's funnel 19 of the first ball valve 18 control, and the inside of gaza's tank 15 is set
There is agitator 33；
The top of standpipe section 35 is provided with second gaza's funnel 28 of the second ball valve 27 control, and bend loss 34 and standpipe
The 3rd pressure transmitter 16 is disposed with section 35, the 4th pressure transmitter 17, the 5th pressure transmitter 20, the 6th pressure becomes
The pressure transmitter 25 of device 22 and the 7th is sent, wherein the 5th pressure transmitter 20 in corresponding standpipe section 35, the 6th pressure transmitter
22 and the 7th pressure transmitter 25 successively standpipe section 35 on be provided with lower sample cock 21, middle sample cock 23 and upper sampling valve
Door 26, also sets up graduated scale 24 in standpipe section 35 in addition；
Data collecting system includes data collecting card 32, wherein data collecting card 32 respectively with first pressure transmitter 7, the
Two pressure transmitters 14, the 3rd pressure transmitter 16, the 4th pressure transmitter 17, the 5th pressure transmitter 20, the 6th pressure become
The pressure transmitter 25 of device 22 and the 7th is sent to be acquired by connection, and then to the pressure signal in respective line；
Sand grains motion monitoring system includes high-speed camera 19, and wherein high-speed camera 19 is used in experimentation to curved
Sand grains motion conditions in pipeline section 34 and standpipe section 35 carry out production monitoring.
Preferably, the outlet of the medium at the top of standpipe section 35 is provided with the return pipe road connected with water tank 31, wherein return pipe
Screening plant 30 is provided with road, the screening plant 30 is used to be sieved the water sand gas mixture carried out from standpipe section 35
Divide, and then the grains of sand are separated, and return to current and recycled in water tank 31.
Preferably, on the supply air line of air supply system, the first valve is provided between compressor 1 and surge tank 3 on pipeline
Door 2, is provided with the second valve 4, first pressure transmitter 7 and air and liquid mixer on pipeline between surge tank 3 and gas flowmeter 5
The 3rd valve 6 is provided between 13 on pipeline；And on the supply channel of water system, managed between water tank 31 and centrifugal pump 9
The 4th valve 8 is provided with road, the 5th valve 10, fluid flow is provided between centrifugal pump 9 and fluid flowmeter 11 on pipeline
Between meter 11 and air and liquid mixer 13 the 6th valve 12 is provided with pipeline.
Preferably, bend loss 34, standpipe section 35 and add silo 15 use transparent organic glass pipe.
Bend pipe sand plug and standpipe take the experimental provision of sand in the marine oil and gas course of conveying that the utility model is provided, and it is studied
The concrete operations of standpipe lifting sand experiment are as follows：
Step one：When initial, the valve of whole experimental provision is full of gas all in closed mode, and in whole experimental provision
Body；First, the water opened successively in the 4th valve 8, the 5th valve 10 and the 6th valve 12, water tank 30 passes through the pump of centrifugal pump 9
Send successively to enter and add in silo 15, bend loss 34 and standpipe section 35；Secondly, the lift of slow regulation centrifugal pump 9 makes standpipe section
The graduated scale more than 24 and no water that liquid level in 35 maintains standpipe section 35 are entered in screening plant 30；Furthermore, slowly
Adjust the first ball valve 18 make plus silo 15 in gas all release, according to whether there is the entrance of gas, selection opens the successively
One valve 2, the second valve 4, the 3rd valve 6 simultaneously quickly open the regulation tolerance of compressor 1, there is stable tolerance after a period of time
Entered by bend loss 34 in standpipe section 35；Finally, data collecting card 32 and high-speed camera 29, start recording second are opened
Pressure transmitter 14, the 3rd pressure transmitter 16, the 4th pressure transmitter 17, the 5th pressure transmitter 20, the 6th pressure inverting
The data of the pressure transmitter 25 of device 22 and the 7th；
Step 2：First, the second ball valve 27 is opened, the sand grains suspension of the certain solubility of certain particle diameter configured is passed through
Second adds sand hopper 28 to be added in standpipe section 35, is then turned off the second ball valve 27, passes through high-speed camera 29 and observes standpipe section
The motion conditions of 35 sand grains, when being deposited to standpipe 35 bottom of section under sand grains, regulation centrifugal pump 9 slowly changes fluid flow,
Simultaneously by data collecting card 32 collect on standpipe section 35 on the 5th pressure transmitter 20, the 6th pressure transmitter 22,
The production monitoring information of grains of sand situation in pressure information and high-speed camera 29 the opposition pipeline section 35 of 7th pressure transmitter 25
And with reference to the motion conditions of the observation standpipe section sand grains of graduated scale 24 in standpipe section 35, difference is passed through by measuring sand grains
The time of graduation mark can obtain the movement velocity of sand grains, and then judge whether sand grains balances in standpipe section 35；Secondly, respectively
In lower sample cock 21, middle sample cock 23 and the opposition pipeline section 35 of upper sample cock 26 in opening standpipe section 35 at diverse location
The grains of sand enter shape sampling, then measure in standpipe section 35 that diverse location sand grains is in the change of different time solubility, then its is corresponding
Liquid phase flow rate is the sized particles corresponding critical flow velocity under the concentration；Finally, the pressure gathered to data data collecting card 32
Force signal, the video of the production of high-speed camera 29, the sand grains characteristics of motion measured and critical flow velocity and the change of the solubility of collection
Make a record；
Step 3：After step 2 terminates, readjust centrifugal pump 9 and increase liquid measure, by remaining sand grains in standpipe section 35
Carrying is gone out, then repeat step one, is opened the second ball valve 27 and is added difference into standpipe section 35 by second plus sand hopper 28
Particle diameter and the sand grains of solubility carry out next group of experiment, then repeat step two.
Preferably, the medium flow field that the remaining sand grains carried away in step 3 from standpipe section 35 passes through the top of standpipe section 35
The screening plant 30 exported to up on return pipe road is sieved, and sand grains is separated, and current are returned to be recycled in water tank 31.
Bend pipe sand plug and standpipe take the experimental provision of sand in the marine oil and gas course of conveying that the utility model is provided, and it is studied
The concrete operations of bend pipe sand plug experiment are as follows：
Step one：When initial, the valve of whole experimental provision is full of gas all in closed mode, and in whole experimental provision
Body；First, the water opened successively in the 4th valve 8, the 5th valve 10 and the 6th valve 12, water tank 30 is sent by centrifugal pump 9
Successively enter and add in silo 15, bend loss 34 and standpipe section 35；Secondly, the lift of slow regulation centrifugal pump 9 makes standpipe section 35
In liquid level maintain standpipe section 35 graduated scale more than 24 and no water enter in screening plant 30；Furthermore, it is slow to adjust
Saving the first ball valve 18 makes to add the gas in silo 15 all to be released；Finally, data collecting card 32 and high-speed camera 29 are opened, is opened
Begin the 4th pressure transmitter 17 of record, the 5th pressure transmitter 20, the 6th pressure transmitter 22 and the 7th pressure transmitter 25
Data；
Step 2：First, the second ball valve 27 is opened, is added by second plus sand hopper 28 into standpipe section 35 a certain amount of
The sand grains suspension of certain size, until standpipe 35 bottom bend loss 34 of section are blocked completely；Secondly, regulation centrifugal pump 9 increases
Frequency, when the pressure of the upstream of bend loss 34 reaches certain value, the pipeline of bend loss 34 will be opened；Again, centrifugal pump 9 is adjusted
Continue to increase fluid flow, observe pipe diameter after lower stabilization different in flow rate and change, and record data；Finally, to whole real
Data collecting card 32 is collected during testing second pressure transmitter 14, the 3rd pressure transmitter 16, the 4th pressure transmitter
17th, the pressure information of the 5th pressure transmitter 20, the 6th pressure transmitter 22 and the 7th pressure transmitter 25 is analyzed, and is obtained
The critical pressure differential that pipeline is opened under the operating mode；
Step 3：Change the particle diameter of sand grains and the amount of sand grains, repeat step one is obtained under different operating modes, bend pipe sand plug weight
Open the pressure difference data of needs and the delta data of pipe diameter；
Step 4：After experiment terminates, gas-liquid flow is increased, remaining sand grains is carried out into bend loss.
Bend pipe sand plug and standpipe take the experimental provision of sand in the marine oil and gas course of conveying that the utility model is provided, and it is studied
Plus the concrete operations of silo sand plug experiment are as follows：
Step one：When initial, the valve of whole experimental provision is all in closed mode；First, the first ball valve 18 is opened, is passed through
The first sand suspension liquid for adding sand hopper 19 to add a certain amount of certain size in silo 15 to adding adds entering for silo 15 until blocking
Mouthful pipeline, here, plus silo 15 outlet position be higher than plus silo 15 inlet tube position；Secondly, the 4th is opened successively
Valve 8, the 5th valve 10, the 6th valve 12 and the first valve 2, the second valve 4, the 3rd valve 6, and it is one to adjust gas-liquid flow
Definite value, until pipeline opening and stably；Furthermore, pipe diameter size after stabilization under the different operating modes of regulation gas-liquid discharge record；Most
Afterwards, to second pressure transmitter 14, the 3rd pressure transmitter the 16, the 4th of the collection of data collecting card 32 in whole experiment process
Pressure transmitter 17, the 5th pressure transmitter 20, the pressure information of the 6th pressure transmitter 22 and the 7th pressure transmitter 25 enter
Row analysis, obtains maximum differential pressure when pipeline is opened；
Step 2：Change the particle diameter of sand grains and the amount of sand grains, repeat step one is obtained under different operating modes, plus silo sand plug
Restart the pressure difference data of needs；
Step 3：After experiment terminates, agitator 33 is opened, air flow quantity is opened, remaining sand grains is cleared out of plus silo.
Bend pipe sand plug and standpipe take the experimental provision of sand in the marine oil and gas course of conveying that the utility model is provided, and it is studied
Plus the concrete operations of silo and bend pipe sand plug coupling experiment are as follows：
Add sand plug plug bend loss 34 simultaneously and add silo 15, adjust gas-liquid flow, obtain pressure data when pipeline is opened
And pipe diameter size variation when different in flow rate.
Preferably, the medium used in whole experiment process is water, air and quartz sand.
Bend pipe sand plug and standpipe take the experimental provision of sand in the marine oil and gas course of conveying that the utility model is provided, for research
The standpipe of marine oil and gas course of conveying takes sand and bend pipe sand plug restarts condition and rule, bend loss 34, standpipe section 35 and plus silo
15 use transparent organic glass pipe.After pit shaft is filtered, the fluid of conveyance conduit is mainly oil, water and micro gas,
A small amount of small particle sand grains is wherein included, the medium that experiment is used is respectively water, air and quartz sand.In whole experimental system by
Centrifugal pump provides aqueous medium, and air is provided by compressor, adds sand hopper to be filled respectively toward experiment by first plus sand hopper and second
Put middle addition sand grains.Carry out being carved with graduated scale in lifting sand experiment, standpipe section in standpipe section, standpipe section upper, middle and lower sets 3 respectively
Individual sample cock and 3 pressure transmitters, while recording the moving situation of sand grains by high-speed camera, pass through standpipe section top
Second plus sand hopper different-grain diameter, the sand grains suspension of different solubility are added into standpipe section, adjust gas-liquid flow, obtain not
With the motion conditions of sand grains under operating mode；Enough sand grains are added in silo and bend loss block up respectively to adding by first plus sand hopper
Fill in bend loss and add silo, pressure change and pipe diameter size variation when regulation gas-liquid discharge record pipeline is opened.
Specifically, to measure the motion conditions of different-grain diameter sand grains, first will test standpipe section it is hydraulically full, open standpipe section
The ball valve of top second, sand grains solution is added by second gaza's funnel into standpipe section, when sand grains reaches standpipe section bottom soon
When, open centrifugal pump and be slowly increased fluid flow, in this process, by high-speed camera, with reference to the scale in standpipe section
The motion conditions of scale observation standpipe section sand grains, sand grains can be obtained by measuring sand grains by the time of different graduation marks
Movement velocity, at the same by standpipe section in diverse location thief hatch sampling and measuring sand grains solubility change and by standpipe section in not
Pressure transmitter with position measures the pressure signal change of standpipe section diverse location, judges whether the sand grains in standpipe section is in
Poised state, when sand grains is balanced in standpipe section, records corresponding flow rate of liquid, this speed is the critical of the size sand grains
Flow velocity.
Specifically, to measure bend pipe and adding the sand plug of silo to restart condition, sand plug is carried out at the bend loss of standpipe section bottom
Experiment and add at silo progress sand plug experiment in bend loss upstream, it is first that experimental provision is hydraulically full, open standpipe section top the
Two ball valves, the sand grains that a certain amount of certain size is added into standpipe by second gaza's funnel blocks bend loss, adjusts gas-liquid flow
Amount is until a certain fixed value, by pressure changing before and after bend loss in pressure transmitter record whole process, obtains bend pipe
Duan Qianhou pressure difference maximums, change flow velocity and repeat above-mentioned experiment, can obtain getting through under different-grain diameter sand grains different liquids flow velocity
Time needed for pipeline, pipe diameter size and pressure change；By first plus sand hopper to add added in silo it is a certain amount of
Sand grains, which is blocked, adds silo inlet duct to carry out plus the experiment of silo sand plug, opens centrifugal pump, adjusts fluid flow to a certain fixed value,
Record from centrifugal pump and be opened to pipe diameter size after pipeline opening time used and stabilization, and recorded by pressure transmitter
Sand plug adds pressure changing before and after silo, obtains pressure difference maximum, increase flow velocity observation pipeline change, change grit size and
Quantity repeats above-mentioned experiment；Sand grains is added into experimental provision, while blocking bend loss and adding silo, repeats the above steps, obtains
To the pressure difference maximum of experimental provision, and bend loss and plus silo blocking coupling condition.
In description of the present utility model, it is to be understood that term " on ", " under ", " in ", " top ", " bottom " etc. indicate
Orientation or position relationship be, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and letter
Change description, rather than indicate or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model
Within enclosing.
Claims (4)
1. bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying, it is characterized in that, including standpipe section,
Bend loss plus silo, air supply system, water system and data collecting system and sand grains motion monitoring system；The standpipe section
With integrated " L " the type pipeline section of bend loss, the air supply system and water system are connected with air and liquid mixer, and the gas-liquid is mixed
Gaza's tank, bend loss and standpipe section are sequentially connected after clutch, the data collecting system is used for respectively to supply air line, gas-liquid
Pressure signal in mixed pipe line, bend loss and standpipe section is acquired, and the sand grains motion monitoring system is used for bend loss
It is monitored with the sand grains state in standpipe section.
2. bend pipe sand plug and standpipe take the experimental provision of sand, its feature in marine oil and gas course of conveying as claimed in claim 1
Be, the air supply system include compressor and supply air line, the compressor by supply air line be connected with turn surge tank and
Gas flowmeter and first pressure transmitter；
The water system include water tank and supply channel, the water tank by supply channel be connected with turn centrifugal pump and
Fluid flowmeter；
The gas-liquid that the supply air line and supply channel are provided is mixed by air and liquid mixer, is set on the gas-liquid mixed pipeline
There is second pressure transmitter, gas-liquid mixed pipeline is connected with gaza's tank afterwards, gaza's tank connecting bending pipeline section and vertical again successively
Pipeline section；
First gaza's funnel of the first ball valve control is provided with above gaza's tank, gaza's tank is internally provided with stirring
Device；
The standpipe section top is provided with second gaza's funnel of the second ball valve control, bend loss and the standpipe Duan Shangyi
It is secondary to be provided with the 3rd pressure transmitter, the 4th pressure transmitter, the 5th pressure transmitter, the 6th pressure transmitter and the 7th pressure
The 5th pressure transmitter in transmitter, the correspondence standpipe section, the 6th pressure transmitter and the 7th pressure transmitter exist successively
Lower sample cock, middle sample cock and upper sample cock are provided with standpipe section, graduated scale is also set up in standpipe section；
Outlet of the medium at the top of standpipe section, which is provided with, to be provided with screening on the return pipe road connected with water tank, the return pipe road and sets
It is standby；
The data collecting system includes data collecting card, and the data collecting card is pressed with first pressure transmitter, second respectively
Power transmitter, the 3rd pressure transmitter, the 4th pressure transmitter, the 5th pressure transmitter, the 6th pressure transmitter and the 7th pressure
Power transmitter passes through connection；
The sand grains motion monitoring system includes high-speed camera, and the high-speed camera is used in experimentation to bend loss
Production monitoring is carried out with the sand grains motion conditions in standpipe section.
3. bend pipe sand plug and standpipe take the experimental provision of sand, its feature in marine oil and gas course of conveying as claimed in claim 2
It is on the supply air line of the air supply system, to be provided with the first valve between the compressor and the surge tank on pipeline,
The second valve, the first pressure transmitter and the gas are provided between the surge tank and the gas flowmeter on pipeline
The 3rd valve is provided between liquid mixer on pipeline；On the supply channel of the water system, the water tank with it is described
The 4th valve is provided between centrifugal pump on pipeline, the 5th is provided with pipeline between the centrifugal pump and the fluid flowmeter
Valve, is provided with the 6th valve on pipeline between the fluid flowmeter and the air and liquid mixer.
4. bend pipe sand plug and standpipe take the experiment dress of sand in the marine oil and gas course of conveying as described in claim any one of 1-3
Put, it is characterized in that, the bend loss, standpipe section and add silo use transparent organic glass pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065290.7U CN206378268U (en) | 2017-01-19 | 2017-01-19 | Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065290.7U CN206378268U (en) | 2017-01-19 | 2017-01-19 | Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378268U true CN206378268U (en) | 2017-08-04 |
Family
ID=59400625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720065290.7U Expired - Fee Related CN206378268U (en) | 2017-01-19 | 2017-01-19 | Bend pipe sand plug and standpipe take the experimental provision of sand in a kind of marine oil and gas course of conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206378268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030300A (en) * | 2018-08-01 | 2018-12-18 | 广州海洋地质调查局 | A kind of pit shaft and pipeline small particle sand sedimentation experiment device and method |
-
2017
- 2017-01-19 CN CN201720065290.7U patent/CN206378268U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030300A (en) * | 2018-08-01 | 2018-12-18 | 广州海洋地质调查局 | A kind of pit shaft and pipeline small particle sand sedimentation experiment device and method |
| CN109030300B (en) * | 2018-08-01 | 2024-01-16 | 广州海洋地质调查局 | Shaft and pipeline small-particle-size sand deposition experimental device and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20180119 |