CN110159235A - Two-tube dispensing CO2Ground gauging means and its application method - Google Patents
Two-tube dispensing CO2Ground gauging means and its application method Download PDFInfo
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- CN110159235A CN110159235A CN201910554568.0A CN201910554568A CN110159235A CN 110159235 A CN110159235 A CN 110159235A CN 201910554568 A CN201910554568 A CN 201910554568A CN 110159235 A CN110159235 A CN 110159235A
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- 238000000034 method Methods 0.000 title claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 52
- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 19
- 239000003921 oil Substances 0.000 claims description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002528 anti-freeze Effects 0.000 claims 2
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/164—Injecting CO2 or carbonated water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to oil field development air insufflation techiques fields, are applied to CO2Dispensing.The device of the invention is connect thirdly the reduction of fractions to a common denominator is not in charge of line with main pipe line and two, and main pipe line is connected with valve, flowmeter and pressure gauge, and being in charge of line one or/and being in charge of further includes being equipped with adjustable pressure reducer, difference gauge, thermometer and blow valve on line two.In main pipe line or it is in charge of on line heat exchanger is set.Adjustable pressure reducer includes that 2 grades or more throttle nozzles are installed in series.Baffle is arranged in throttle nozzle downstream face nozzle in adjustable pressure reducer.Thermometer is mounted on installation assembly.It is mounted with that the line gas injection tree interface low with gas injection pressure of being in charge of of adjustable pressure reducer is connect, injection flow can be adjusted in adjustment throttle nozzle size.Due to being mounted with 2 grades with top nozzle, big chock pressure difference is realized by depressurizing step by step, and small to the erosion of nozzle, more can guarantee that the long-term accuracy that flow is adjusted, the heat exchanger of installation prevent ice to block up problem.
Description
Technical field
The present invention relates to petroleum industry oil field development layered gas-injection technical field, especially a kind of two-tube dispensing CO2Ground
Gauging means and its application method.
Background technique
In separated-zone water infection oil field technology, concentric double pipe dispensing is a common technology.This technology is mainly characterized by
Two layers of oil pipe being nested with one heart is installed in underground, the installation layering well packer capable of flushing well in outer oil pipe, near layer separating packer
One insertion apparatus for sealing interior outer oil pipe annular space is set, realizes that the upward oil-bearing stratum flooding of interior outer oil pipe annular space, inner oil tube are oily downwards
Layer water filling.
The ground installation of the technology is different from the ground installation of conventional waterflooding well.Chinese Patent Application No.
201721157413.6, patent name " two-tube dispensing ground corollary apparatus " discloses such a concentric double pipe dispensing ground dress
It sets.The device is made of double manifold systems, and double manifold systems include four-way, upper pipeline and lower pipeline, the upper pipeline
And connect after lower pipeline parallel connection with two interfaces of four-way, it include: cone seat formula tubing head, pressure in upper pipeline and lower pipeline
Table, vortex-shedding meter and fine adjustment type water injection valve.Two cone seat formula tubing heads in the upper pipeline and lower pipeline are in upper and lower cloth
It sets, upper layer cone seat formula tubing head is connect with lower layer's cone seat formula tubing-head adapter flange.The lower layer cone seat formula tubing head 3-1/2NU
Cone seat formula tubing head, upper layer cone seat formula tubing head are 2-3/8NU cone seat formula tubing head.The upper layer cone seat formula tubing head and under
The left and right ends mouthful of layer cone seat formula tubing head are separately connected left and right gate valve, and cone seat formula tubing head is successively managed by four-way at the middle and upper levels
Road connects upper layer shut-off valve, upper layer vortex-shedding meter and upper layer fine adjustment type water injection valve and constitutes upper pipeline, and upper layer pressure gauge passes through upper
Layer shut-off valve is connected on upper pipeline, the right gate valve piping connection upper layer oil pipe of upper layer cone seat formula tubing head；Lower layer's cone seat formula oil
Successively piping connection lower layer shut-off valve, lower layer's vortex-shedding meter and lower layer are micro- by the left gate valve of upper layer cone seat formula tubing head for tube head
Mode water injection valve constitutes lower pipeline, and lower layer's pressure gauge is connected on lower pipeline by lower layer's shut-off valve, lower layer's cone seat formula tubing head
Right gate valve piping connection lower layer oil pipe.The fine adjustment type water injection valve sets two orthogonal spools in valve body, wherein
First is that reset valve, the other is flushing valve.
It is with the different place of universal grounding device, the well head part of this covering device is two sets of four-ways, and there are two oil
Pipe hanger.
Concentric double pipe dispensing technology has been also applied to CO now2It drives on dispensing well, above-mentioned " two-tube dispensing ground is with suit
Set " for dispensing CO2It is unable to meet demand, is mainly manifested in:
1、CO2Viscosity it is very low, conventional flow controller be directed to CO2Reduced pressure capabilities it is poor, be not able to satisfy gas injection engineering and decompression wanted
It asks.
2, gas decompression can sharply absorb heat, CO2It may cause ice blockage flow controller when temperature is not high.
Summary of the invention
In order to solve the above technical problems, having invented two-tube dispensing CO2Ground gauging means and its application method solve note
Controlled atmosphere pressure and pre- anti-icing stifled problem.
To achieve the above object, the present invention adopts the following technical scheme:
Two-tube dispensing CO2Ground gauging means, threeway respectively with main pipe line, be in charge of line one and be in charge of line two and connect, main pipe line connects
Be connected to valve, flowmeter and pressure gauge, be in charge of line one or/and be in charge of two connecting valve of line and flowmeter, be in charge of line one or/and
Be in charge of on line two and be also equipped with adjustable pressure reducer, difference gauge, thermometer and blow valve, thermometer be mounted on adjustable pressure reducer it
Afterwards.
In the main pipe line or it is in charge of line one or is in charge of on line two heat exchanger is set before adjustable pressure reducer.Described
Adjustable pressure reducer includes that 2 grades or more throttle nozzles are installed in series in outer tube.The adjustable pressure reducer is in throttle nozzle downstream
Baffle is arranged in face nozzle.
The throttle nozzle is collectively formed by interchangeable nozzles and mouth seat, and interchangeable nozzles are coaxially mounted at the inner hole of mouth seat
In, baffle is set in the inner hole of mouth seat, and the connection that is connected in series of mouth seat forms throttle nozzle group, and throttle nozzle group is mounted on end
And it is connected to one end of outer tube together.
The thermometer is mounted on installation assembly.The installation assembly includes the outer tube being set in together and interior
Pipe, inner tube are equipped with counterbore, and liquid is inoculated in counterbore, and the sensor of thermometer is inserted into liquid.The liquid be anti-icing fluid or
Conduction oil or hydraulic oil or ethanol solution or water.
Two-tube dispensing CO of the invention2The application method of ground gauging means is,
A, installation method: main pipe line and carry out CO2Pipeline connects, and is in charge of line connection in two kinds of situation,
1. being mounted with being in charge of line one and be in charge of line two and connecting respectively with two gas injection interfaces of gas injection tree for adjustable pressure reducer；
2. being mounted with being in charge of line one or be in charge of the gas injection tree interface low with gas injection pressure of line two and connecting for adjustable pressure reducer, do not install
Being in charge of line one or being in charge of the gas injection tree interface high with gas injection pressure of line two for adjustable pressure reducer is connect；
B, pressure regulation method: end is removed from adjustable pressure reducer and takes throttle nozzle out of, adjusts the ruler of throttle nozzle or interchangeable nozzles
It is very little, it is reinstalled adjustable pressure reducer.
Technological merit of the invention is:
1, the device of the invention is mounted with 2 grades or more adjustable throttle nozzles of connecting, and gas injection engineering pair is realized by depressurizing step by step
The demand of big chock pressure difference.
2, heat exchanger heats CO2, CO can be prevented2Ice caused by decompression heat absorption blocks up problem.
3, the difference gauge and thermometer installed are more convenient for calculating the size of throttle nozzle.
4, concatenated throttle nozzle group is convenient takes out from adjustable pressure reducer, and nozzle exchange is convenient.
5, compared with level-one decompressor, nozzle series of the invention is more, flows through the CO of every level-one spout2Flow velocity is low, right
The erosion attack of nozzle is small, more can guarantee the long-term accuracy that flow is adjusted.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, by referring to following detailed description, the present invention can be more completely and better understood with
And be easy to learn many adjoint advantages, but the drawings described herein are used to provide a further understanding of the present invention,
A part of the invention is constituted, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute to this hair
Bright improper restriction, in which:
Fig. 1 is two-tube dispensing CO2The structural schematic diagram of ground gauging means preferred embodiment one.
Fig. 2 is two-tube dispensing CO2The structural schematic diagram of ground gauging means preferred embodiment two.
Fig. 3 is two-tube dispensing CO2The structural schematic diagram of ground gauging means preferred embodiment three, heat exchanger is mounted in figure
It is in charge of on line.
Fig. 4 is two-tube dispensing CO2The structural schematic diagram of ground gauging means preferred embodiment four is only in charge of all the way in figure
Line is mounted with flowmeter and adjustable pressure reducer.
Fig. 5 is two-tube dispensing CO2The structural schematic diagram of ground gauging means preferred embodiment five is only in charge of all the way in figure
Line is mounted with flowmeter, adjustable pressure reducer and heat exchanger.
Fig. 6 is the structural schematic diagram of the preferred embodiment one of adjustable pressure reducer.
Fig. 7 is the structural schematic diagram of the preferred embodiment two of adjustable pressure reducer.
Fig. 8 is the structural schematic diagram of thermometer installation assembly.
In figure: 1- main pipe line, 2- valve, 3- heat exchanger, 4- flowmeter, 5- pressure gauge, 6- are in charge of line one, 7- thermometer,
8- difference gauge, 9- is adjustable pressure reducer, 10- blow valve, 11- threeway, 12- are in charge of line two, 13- needle valve, 401- throttle nozzle,
402- baffle, 403- outer tube, 404- spout, the end 501-, 502- air inlet pipe, 503- interchangeable nozzles, 504- mouth seat, 505- outlet
Pipe, 201- installation assembly, 602- inner tube, 603- liquid, 604- outer tube, 605- sensor.
Specific embodiment
As shown in Figure 1, two-tube dispensing CO2Ground gauging means, threeway 11 respectively with main pipe line 1, be in charge of line 1 and be in charge of
Line 2 12 connects, and main pipe line is connected with valve 2, flowmeter 4 and pressure gauge 5, be in charge of line one and be in charge of line two be all connected with valve and
Flowmeter is also equipped with adjustable pressure reducer 9, difference gauge 8, thermometer 7 and blow valve 10 being in charge of line one and being in charge of on line two, temperature
Degree meter 7 is mounted on after adjustable pressure reducer 9.The configuration of this device is suitable for CO2Line pressure is higher, and point two tunnels is needed to subtract
Gas injection after pressure.In order to facilitate dismounting, as shown in the figure, needle valve 13 is installed generally between pressure gauge and pipeline, due to differential pressure
Before and after being connected to adjustable pressure reducer in respect of two pressure lines, therefore two needles are mounted between difference gauge and pipeline connection
Shape valve 13.The purpose for installing difference gauge and thermometer is to provide calculation basis for the adjustment of throttle nozzle.Certainly, difference gauge 8
A pressure gauge substitution can be used, the pressure gauge of substitution is mounted on after adjustable pressure reducer 9, by calculating the substitution pressure
The pressure difference of power meter and pressure gauge 5 obtains the chock pressure difference of adjustable pressure reducer 9, below such pressure gauge alternative no longer
It repeats.
High pressure CO2It can absorb heat after decompression, cause CO2Sharply cool down with pipeline, when temperature drops to CO2Pipe can be generated when freezing point
Road ice is stifled.To solve this problem, when all blocking up there may be ice after two are in charge of line decompression, heat exchanger is set on main pipe line
3, give CO2It is warming up to certain temperature, the CO after making decompression2Higher than freezing point temperature.
Heat exchanger is known technology, and common heat exchanger is water jacket furnace on oil field.
Preferred embodiment as shown in Figure 2, two-tube dispensing CO2Ground gauging means, threeway 11 respectively with main pipe line 1, point
Pipeline 1 is connected with valve 2, flowmeter 4 and pressure gauge 5 with the connection of line 2 12, main pipe line is in charge of, and is in charge of line one and is in charge of line two
It is all connected with valve and flowmeter, is also equipped with adjustable pressure reducer 9, difference gauge 8, thermometer 7 being in charge of line one and being in charge of on line two
With blow valve 10, thermometer 7 is mounted on after adjustable pressure reducer 9.Needle valve 13, difference gauge are installed between pressure gauge and pipeline
Two needle valves 13 are mounted between connecting with pipeline.The configuration of this device is suitable for CO2Line pressure is higher, needs point
Gas injection and will not there is a situation where pipeline ice is stifled after depressurizing after the decompression of two tunnels.
Preferred embodiment as shown in Figure 3, the present apparatus are to apply coming that atmospheric pressure is higher, and two-way is in charge of line and requires to depressurize
Injection, and it is larger to be wherein in charge of line decompression chock pressure difference all the way, it is stifled there may be ice after decompression, need to come the road gas lift temperature with
Eliminate the stifled situation of ice.Its specific embodiment is: threeway 11 respectively with main pipe line 1, be in charge of line 1 and be in charge of line 2 12 connect
It connecing, main pipe line 1 is connected with valve 2, flowmeter 4 and pressure gauge 5, and it is in charge of line one and is in charge of line two and is all connected with valve and flowmeter,
It is also equipped with adjustable pressure reducer 9, difference gauge 8, thermometer 7 and blow valve 10 being in charge of line one and being in charge of on line two, thermometer 7 is pacified
After adjustable pressure reducer 9.Needle valve 13 is installed between pressure gauge and pipeline, is mounted between difference gauge and pipeline connection
Two needle valves 13.Heat exchanger 3 is installed therein to be in charge of on line all the way, mountable on being in charge of line 1, also mountable to be in charge of
On line 2 12, heat exchanger 3 is mounted on before adjustable pressure reducer 9.
Preferred embodiment as shown in Figure 4, the present apparatus two tunnels unlike Fig. 2 shown device are in charge of in line only wherein
It is in charge of line all the way and is mounted with valve, flowmeter, adjustable pressure reducer, difference gauge, thermometer and blow valve.Fig. 4 shown device is matched
It sets and is suitable for understanding reservoir condition grasp, only needed to the feelings that wherein gas injection is depressurized all the way in two road gas injection pipeline of ground
Condition.Its specific connection type is: threeway 11 respectively with main pipe line 1, be in charge of line 1 and be in charge of line 2 12 and connect, main pipe line connects
It is connected to valve 2, flowmeter 4 and pressure gauge 5, is in charge of one 6 connecting valve of line and flowmeter, being also equipped on being in charge of line 1 can
Depressor 9, difference gauge 8, thermometer 7 and blow valve 10 are adjusted and reduced, thermometer 7 is mounted on after adjustable pressure reducer 9.In pressure gauge and pipe
Needle valve 13 is installed between line, is mounted with two needle valves 13 between difference gauge and pipeline connection.
Preferred embodiment as shown in Figure 5, the present apparatus unlike Fig. 4 shown device be mounted with valve, flowmeter,
Heat exchanger 3 is also mounted in adjustable pressure reducer, difference gauge, thermometer and being in charge of on line all the way for blow valve.Fig. 5 shown device is matched
It sets and is suitable for understanding reservoir condition grasp, only needed to wherein gas injection is depressurized and subtracted all the way in two road gas injection pipeline of ground
It can be stifled there is a situation where ice after pressure.Its specific connection type is: threeway 11 respectively with main pipe line 1, be in charge of line 1 and be in charge of line
2 12 connections, main pipe line are connected with valve 2, flowmeter 4 and pressure gauge 5, are in charge of one 6 connecting valve of line and flowmeter, are being in charge of
Adjustable pressure reducer 9, difference gauge 8, thermometer 7 and blow valve 10 are also equipped on line 1, thermometer 7 is mounted on adjustable pressure reducer 9
Later.Needle valve 13 is installed between pressure gauge and pipeline, is mounted with two needle valves 13 between difference gauge and pipeline connection.It can
It adjusts and reduce and heat exchanger 3 is set in being in charge of on line 1 before depressor 9.
As shown in Figure 6, the adjustable pressure reducer 9 includes that 2 grades or more throttle nozzles 401 are installed in series in outer tube 403.
Baffle 402 is arranged in the pressure relief value of every grade of throttle nozzle in order to further increase at 401 downstream face spout 404 of throttle nozzle.
In place of the spout refers to that diameter is minimum in 401 inner hole of throttle nozzle in figure.The downstream refers to that fluid flows through spout 404
Flow channel section afterwards.
Benefit using 2 grades or more throttle nozzle series connection decompressions is total reduction value can be assigned on every grade of throttle nozzle.
In this way, nozzle series is more, the CO of every level-one spout is flowed through2Flow velocity is low, small to the erosion attack of nozzle, more can guarantee that flow is adjusted
Long-term accuracy.Furthermore due to the particularity of gas, when one timing of jet size, the maximum value of decompression is a definite value,
Single-stage throttle nozzle may not be able to realize the decompression demand in engineering to larger pressure relief value.
As shown in Figure 7, the throttle nozzle 401 is collectively formed by interchangeable nozzles 503 and mouth seat 504, interchangeable nozzles
503 are coaxially mounted in the inner hole of mouth seat 504, and baffle 402 is arranged in the inner hole of mouth seat, and mouth seat 504 is connected in series to connect and be formed
Throttle nozzle group, throttle nozzle group are mounted on end 501 and are connected to one end of outer tube 403 together.The advantages of designing in this way
It is when adjusting pressure relief value, only to need to change interchangeable nozzles 503, it is easy to operate, advantageously reduce cost.Air inlet pipe 502 as shown in the figure
It is CO2Entrance, escape pipe 505 are the CO after decompression2Outlet.
In adjustable pressure reducer, the jet size of throttle nozzle 401 or interchangeable nozzles 503 can be identical, can not also phase
Together.
Thermometer on sale is usually and temperature sensor is mounted in a metal tube in the market, the metal tube pressure resistance
Ability is usually insufficient, when being applied to pressure duct thermometric, needs to carry out pressure protection to the metal tube.To solve this
Problem, as shown in figure 4, the thermometer 7 is mounted on installation assembly 201, installation assembly 201 is installed on the pipeline.Pipe
Pressure in road is undertaken by installation assembly, and the temperature sensor metal tube does not undertake pressure.As shown in Figure 8, described
Installation assembly 201 includes the outer tube 604 being set in together and inner tube 602, and inner tube is equipped with counterbore, is inoculated with liquid 603 in counterbore, temperature
The sensor 605 of degree meter is inserted into liquid.It should be noted that as long as all embodiment operating conditions of apparatus of the present invention need all to answer
Configure installation assembly 201.
The liquid should be according to CO in pipeline2Temperature select, principle is that low temperature cannot solidify, high temperature cannot gas
Change, preferably high thermal conductivity coefficient.Such as CO2Freezing point be about -56 DEG C, if the CO in pipeline2Temperature is subzero state, can be made
With ethyl alcohol or high concentration ethanol solution, the freezing point and boiling point parameter of different liquids can search related data, not go to live in the household of one's in-laws on getting married one by one here
It states.In order to reduce cost, market liquid on sale should be selected, such as or mixtures thereof anti-icing fluid, conduction oil, hydraulic oil, ethyl alcohol, water,
Mercury also can be used.
In CO2Displacing oil-field gas injection scene, CO2Usually with liquid booster pump injection.Work as CO2When being transported to well head, since distance is remote
It is close different, CO2Phase can generate large change, it may be possible to liquid, gaseous state, overcritical or its admixture.It is indefinite for phase
CO2, conventional orifice flowmeter, vortex-shedding meter etc. are difficult to accurately measure, it is preferred to use mass flowmenter is measured.
Two-tube dispensing CO of the invention2Ground gauging means, application method be,
A, installation method: main pipe line and carry out CO2Pipeline connects, and is in charge of line connection in two kinds of situation,
1. being mounted with being in charge of line one and be in charge of line two and connecting respectively with two gas injection interfaces of gas injection tree for adjustable pressure reducer；
2. being mounted with being in charge of line one or be in charge of the gas injection tree interface low with gas injection pressure of line two and connecting for adjustable pressure reducer, do not install
Being in charge of line one or being in charge of the gas injection tree interface high with gas injection pressure of line two for adjustable pressure reducer is connect；
B, pressure regulation method: end is removed from adjustable pressure reducer and takes throttle nozzle out of, adjusts the ruler of throttle nozzle or interchangeable nozzles
It is very little, it is reinstalled adjustable pressure reducer.
Obviously, those skilled in the art belong to guarantor of the invention based on many modifications and variations that spirit of the invention is done
Protect range.
Claims (13)
1. two-tube dispensing CO2Ground gauging means, threeway (11) respectively with main pipe line (1), be in charge of line one (6) and be in charge of line two
(12) it connects, main pipe line is connected with valve (2), flowmeter (4) and pressure gauge (5), is in charge of line one or/and is in charge of two connection valve of line
Door and flowmeter, which is characterized in that be also equipped with adjustable pressure reducer (9), difference gauge being in charge of line one or/and being in charge of on line two
(8), thermometer (7) and blow valve (10), thermometer are mounted on after adjustable pressure reducer.
2. two-tube dispensing CO according to claim 12Ground gauging means, which is characterized in that in the main pipe line or divide
Pipeline one is in charge of on line two before the adjustable pressure reducer heat exchanger (3) is arranged.
3. two-tube dispensing CO according to claim 12Ground gauging means, which is characterized in that the adjustable pressure reducer
It (9) include that 2 grades or more throttle nozzles (401) are installed in series in outer tube (403).
4. two-tube dispensing CO according to claim 32Ground gauging means, which is characterized in that the adjustable pressure reducer
(9) baffle (402) are set in throttle nozzle (401) downstream face nozzle.
5. two-tube dispensing CO according to claim 3 or 42Ground gauging means, which is characterized in that the throttle nozzle
It (401) is to be collectively formed by interchangeable nozzles (503) and mouth seat (504), interchangeable nozzles (503) are coaxially mounted at mouth seat (504)
In inner hole, baffle (402) are set in the inner hole of mouth seat, mouth seat (504) connection that is connected in series forms throttle nozzle group, throttle nozzle
Group is mounted on end (501) and is connected to one end of outer tube (403) together.
6. two-tube dispensing CO described in any claim according to claim 1~42Ground gauging means, which is characterized in that institute
The thermometer (7) stated is mounted on installation assembly (201).
7. two-tube dispensing CO according to claim 52Ground gauging means, which is characterized in that the thermometer (7) is
It is mounted on installation assembly (201).
8. two-tube dispensing CO according to claim 62Ground gauging means, which is characterized in that the installation assembly
It (201) include the outer tube (604) being set in together and inner tube (602), inner tube is equipped with counterbore, is inoculated with liquid, thermometer in counterbore
Sensor (605) insertion liquid in.
9. two-tube dispensing CO according to claim 72Ground gauging means, which is characterized in that the installation assembly
It (201) include the outer tube (604) being set in together and inner tube (602), inner tube is equipped with counterbore, is inoculated with liquid, thermometer in counterbore
Sensor (605) insertion liquid in.
10. two-tube dispensing CO according to claim 82Ground gauging means, which is characterized in that the liquid is antifreeze
Liquid or conduction oil or hydraulic oil or ethanol solution or water.
11. two-tube dispensing CO according to claim 92Ground gauging means, which is characterized in that the liquid is antifreeze
Liquid or conduction oil or hydraulic oil or ethanol solution or water.
12. two-tube dispensing CO described in claim 1~11 any claim2The application method of ground gauging means, feature
It is, in two-tube dispensing CO2Two-tube dispensing CO is used in the ground installation of system2Ground gauging means.
13. two-tube dispensing CO according to claim 122The application method of ground gauging means, step be,
A, installation method: main pipe line and carry out CO2Pipeline connects, and is in charge of line connection in two kinds of situation,
1. being mounted with being in charge of line one and be in charge of line two and connecting respectively with two gas injection interfaces of gas injection tree for adjustable pressure reducer；
2. being mounted with being in charge of line one or be in charge of the gas injection tree interface low with gas injection pressure of line two and connecting for adjustable pressure reducer, do not install
Being in charge of line one or being in charge of the gas injection tree interface high with gas injection pressure of line two for adjustable pressure reducer is connect；
B, pressure regulation method: end is removed from adjustable pressure reducer and takes throttle nozzle out of, adjusts the ruler of throttle nozzle or interchangeable nozzles
It is very little, it is reinstalled adjustable pressure reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554568.0A CN110159235A (en) | 2019-06-25 | 2019-06-25 | Two-tube dispensing CO2Ground gauging means and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554568.0A CN110159235A (en) | 2019-06-25 | 2019-06-25 | Two-tube dispensing CO2Ground gauging means and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110159235A true CN110159235A (en) | 2019-08-23 |
Family
ID=67625553
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| CN115234203A (en) * | 2022-08-04 | 2022-10-25 | 中国石油化工股份有限公司 | Carbon dioxide oil displacement concentric double-tube separate injection string |
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