CN108071381A - A kind of fouling simulator and method - Google Patents
A kind of fouling simulator and method Download PDFInfo
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- CN108071381A CN108071381A CN201711124876.7A CN201711124876A CN108071381A CN 108071381 A CN108071381 A CN 108071381A CN 201711124876 A CN201711124876 A CN 201711124876A CN 108071381 A CN108071381 A CN 108071381A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 202
- 238000004088 simulation Methods 0.000 claims abstract description 110
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004615 ingredient Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 16
- 238000002474 experimental method Methods 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 68
- 239000003795 chemical substances by application Substances 0.000 description 27
- 230000005764 inhibitory process Effects 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- 229960004424 carbon dioxide Drugs 0.000 description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000011282 treatment Methods 0.000 description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 229910001424 calcium ion Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Inorganic materials [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000007832 Na2SO4 Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002455 scale inhibitor Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000005303 weighing 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
- E21B47/00—Survey of boreholes or wells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Geophysics (AREA)
- Biochemistry (AREA)
- Fluid Mechanics (AREA)
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- Food Science & Technology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a kind of fouling simulator and methods, are related to testing field.Wherein fouling simulator includes：More than two air and liquid mixers, pipe-line mixer and constant temperature simulation box, each air and liquid mixer is respectively used to obtain original liquid and initial gas, and is mixed, and obtains experimental liquid；Pipe-line mixer is conveyed to constant temperature simulation box for obtaining all experimentss liquid after being mixed；Pressure control device and multiple foulings simulation pipe are provided in constant temperature simulation box, pressure control device is used to control the pressure in each fouling simulation pipe respectively, and mixed experimental liquid is made to simulate in-tube fouling in each fouling under the effect of the pressure.A kind of fouling simulator provided by the invention and method, it can realize scaling tendency of the simulated experiment liquid in different pressures section, and when can contain gas with various in accurate simulation production fluid, experimental liquid is in fouling simulation in-tube fouling trend, amount of scale buildup, fouling position etc..
Description
Technical field
The present invention relates to testing field more particularly to a kind of fouling simulator and methods.
Background technology
In the exploitation production process of oil, due to ion compatibility and chemical thermodynamics are unstable etc., oil field is adopted
Water outlet is present with the problem of fouling.Oilfield scaling can bring great security risk to production system, for example, pipeline scaling can draw
Play conveying capacity declines, kinetic equation loss increases etc..
Fouling is prevented using antisludging agent, is that one of fouling risk most efficient method is reduced in current oilfield process.
However the composition of antisludging agent and water has very strong specific aim, the use of any antisludging agent, it is necessary to by science, accurately
Advance simulated experiment, it is ensured that scale inhibition effect maximizes, if antisludging agent improper use, can be brought to production system irreversible
Damage.
It is tested therefore, it is necessary to be simulated first to the fouling condition in oil field, then to the using effect of antisludging agent.Mesh
Preceding fouling modeling scheme can not all simulate the actual conditions of fouling, lead to not test out antisludging agent exactly exactly
Scale inhibition effect.
The content of the invention
The technical problems to be solved by the invention are in view of the deficiencies of the prior art, to provide a kind of fouling simulator and side
Method.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of fouling simulator, including：More than two air and liquid mixers, pipe-line mixer and constant temperature simulation box,
In：
Each air and liquid mixer is respectively used to obtain original liquid and initial gas, and is mixed, and obtains experiment liquid
Body；
The pipe-line mixer is conveyed to the constant temperature simulation for obtaining all experimental liquids after being mixed
Case；
Pressure control device and multiple foulings simulation pipe are provided in the constant temperature simulation box, the pressure control device is used
In controlling the pressure in each fouling simulation pipe respectively, make the mixed experimental liquid under the action of the pressure
Each fouling simulation in-tube fouling.
The beneficial effects of the invention are as follows：A kind of fouling simulator provided by the invention, by original liquid and initially
Gas is mixed, and can more accurately simulate influence of the gas for fouling, and by being simulated to multiple foulings in pipe
Pressure controlled, can realize scaling tendency of the simulated experiment liquid in different pressures section, and being capable of accurate simulation
When containing gas with various in production fluid, experimental liquid simulates in-tube fouling trend, amount of scale buildup, fouling position etc. in fouling, so as to
Selection, scale control treatments technique for antisludging agent provide accurately experimental data, it is ensured that the scale inhibition effect of antisludging agent is fully sent out
It waves, prevents scale inhibition is insufficient from causing to damage happening for production system.
Based on the above technical solutions, the present invention can also be improved as follows.
Further, further include：The fouling liquid collecting tank and analytical instrument of sealing, the fouling liquid collecting tank are used to receive
Collect the mixed experimental liquid remaining fouling liquid, analytical instrument after each fouling simulation in-tube fouling to use
It is analyzed in the ingredient to the fouling liquid.
Further, at the inlet of the fouling liquid collecting tank, filter is additionally provided with, the filter was used for
Filter the solids foul generated in the fouling liquid.
Further, the inertial gas tank connected with the fouling liquid collecting tank, the inertial gas tank are further included
For adjusting the pressure in each fouling simulation pipe.
Advantageous effect using above-mentioned further scheme is：It, can be into fouling simulator by inertial gas tank
Inert gas is conveyed, to realize the pressure in maintenance system, and the partial pressure of simulation associated gas can be kept.
Further, multiple transfer tubes are further included in the constant temperature simulation box, the pressure control device includes：Multiple pressures
Force regulating valve, all the fouling simulation is managed is sequentially communicated by the transfer tube, and each fouling simulation pipe also passes through respectively
The transfer tube is connected with the fouling liquid collecting tank, and each pressure-regulating valve is separately positioned on each transfer tube, is used
The pressure in pipe is simulated in controlling each fouling.
Advantageous effect using above-mentioned further scheme is：Fouling mould is separately controlled by multiple pressure-regulating valves
Intend the pressure of pipe, and the quantity that fouling to be used is needed to simulate pipe can be controlled according to the switch of pressure-regulating valve, it can be in order to
Experimental liquid carries out fouling in the fouling simulation pipe of multiple ranks, and in multiple foulings simulation pipe, it can be independently
Fouling condition under the conditions of simulation different pressures can improve the efficiency of fouling simulation.
Further, further include：More than two wet tanks, each wet tank respectively with each gas-liquid mixed
Device connects, and each wet tank is respectively used to store different types of liquid, as the original liquid.
Further, it is additionally provided with metering between each wet tank and each air and liquid mixer interconnected
Pump, the metering pump are used to control the input of the original liquid according to preset ratio.
Advantageous effect using above-mentioned further scheme is：By metering pump, will can respectively state initial in wet tank
Liquid is transported in air and liquid mixer exactly by preset ratio.
Further, further include：Gas mixer, for obtaining two or more gas according to default partial pressure value, and will
Each gas is mixed, as the initial gas.
Further, between each air and liquid mixer and the pipe-line mixer, heater is additionally provided with, it is described to add
Hot device is used for all heating test liquids to preset temperature.
The another technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of fouling analogy method, including：
Two or more original liquids is obtained respectively, and each original liquid is mixed respectively with initial gas,
Accordingly obtain two or more experimental liquids；
Each experimental liquid is mixed, and is transported in multiple fouling simulation pipes；
The pressure in each fouling simulation pipe is controlled respectively, makes the mixed experimental liquid in the work of the pressure
In each fouling simulation in-tube fouling under.
The beneficial effects of the invention are as follows：A kind of fouling analogy method provided by the invention, by original liquid and initially
Gas is mixed, and can more accurately simulate influence of the gas for fouling, and by being simulated to multiple foulings in pipe
Pressure controlled, can realize scaling tendency of the simulated experiment liquid in different pressures section, and being capable of accurate simulation
When containing gas with various in production fluid, experimental liquid simulates in-tube fouling trend, amount of scale buildup, fouling position etc. in fouling, so as to
Selection, scale control treatments technique for antisludging agent provide accurately experimental data, it is ensured that the scale inhibition effect of antisludging agent is fully sent out
It waves, prevents scale inhibition is insufficient from causing to damage happening for production system.
Further, further include：
Collect the mixed experimental liquid remaining fouling liquid after each fouling simulation in-tube fouling；
The ingredient of the fouling liquid is analyzed.
Further, the mixed experimental liquid of collection is remaining after each fouling simulation in-tube fouling
Before fouling liquid, further include：
Filter the solids foul generated in the fouling liquid.
Further, further include：
Adjust the pressure in each fouling simulation pipe.
Further, further include：
The pressure in each fouling simulation pipe is controlled respectively.
Further, it is described obtain two or more original liquids respectively before, further include：
The input of the original liquid is controlled according to preset ratio.
Further, it is described obtain two or more original liquids respectively before, further include：
Two or more gas is obtained according to default partial pressure value, and each gas is mixed, as described initial
Gas.
Further, it is described each experimental liquid is mixed before, further include：
By all heating test liquids to preset temperature.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partly become from the following description
It obtains substantially or is recognized by present invention practice.
Description of the drawings
Fig. 1 is the structural framing figure of one embodiment of fouling simulator of the present invention；
Fig. 2 is the structure diagram of another embodiment of fouling simulator of the present invention；
Fig. 3 is the flow diagram of one embodiment of fouling analogy method of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, the structural framing figure of one embodiment for fouling simulator of the present invention, in the present embodiment,
Structure simulators can include more than two air and liquid mixers 1, pipe-line mixer 2 and constant temperature simulation box 3, wherein：
Each air and liquid mixer 1 is respectively used to obtain original liquid and initial gas, and is mixed, and obtains experimental liquid.
It should be noted that the quantity of air and liquid mixer 1 can be set according to actual conditions.For example, when simulation fouling
When journey needs to use 2 kinds of original liquids, then air and liquid mixer 1 could be provided as 2, be respectively used to this 2 kinds of original liquids
It is mixed respectively in 2 air and liquid mixers 1 with initial gas.In another example when simulation scaling process needs to use 3 kinds initially
During liquid, then air and liquid mixer 1 could be provided as 3, be respectively used to this 3 kinds of original liquids respectively in 3 gas-liquid mixeds
It is mixed in device 1 with initial gas.
Preferably, the quantity of air and liquid mixer 1 or 1, when only a kind of original liquid is carried out with initial gas
After mixing, it is transported in fouling simulation pipe and carries out fouling simulation, then the quantity of air and liquid mixer 1 can be provided accordingly to 1
It is a.
Preferably, if original liquid and initial gas are easily mixed, then air and liquid mixer 1 can be cancelled, such as
Fruit is cancelled, then can be applied directly to initial gas original liquid being transported in the transfer tube of pipe-line mixer 2.
Wherein, original liquid and initial gas can be used for after referring to mixing in simulation oil field or other production systems
Generate operating mode water, oil field extracted water, industrial wastewater, sanitary wastewater etc., original liquid and initial gas mixed, be in order to
Obtain constituent and the ratio experimental liquid identical with these liquid for simulating of needs.
For example, for oil field extracted water, structural material is mainly calcium carbonate, calcium sulfate etc., then for initial
It, can be by SY/T5673-1993 for liquid《Scale inhibitor for oilfield Reliable Evaluating Methods of Their Performance》Regulation prepares A liquid and B liquid, A respectively
Liquid and B liquid upon mixing, by fouling in simulating pipe in fouling, can be used for calcium sulfate scaling feelings before and after evaluation plus antisludging agent
Condition.
In another example D liquid, E liquid can also be prepared respectively, D liquid and E liquid upon mixing, by fouling in simulating pipe in fouling,
It can be used for evaluation and add calcium carbonate scaling situation before and after antisludging agent.
According to the regulation in standard：
A liquid forms：CNaCl=7.50g/L, CCaCl2·2H2O=11.10g/L；
B liquid forms：CNaCl=7.50g/L, CNa2SO4=10.66g/L；
D liquid forms：CNaCl=33.00g/L, CCaCl2·2H2O=12.15g/L, CMgCl2·6H2O=3.68g/L；
E liquid forms：CNaCl=33.00g/L, CNaHCO3=7.36g/L, CNa2SO4=0.03g/L.
A, B liquid can generate calcium sulfate precipitation after the mixing of two liquid, can simulate life respectively containing calcium ion and sulfate ion
The fouling condition of calcium sulfate in production system；D, E liquid after mixing and is being advised respectively containing calcium ion magnesium ion and bicarbonate ion
Determine to generate precipitation of calcium carbonate at temperature after constant temperature, can in simulated production system calcium carbonate fouling condition.
In another example the specific oil field extracted water that can also be evaluated as needed, analyzes the composition of recovered water, then
By calculating, fouling cation in water is configured to 2 kinds of original liquids respectively with fouling anion.
Pipe-line mixer 2 is conveyed to constant temperature simulation box 3 for obtaining all experimentss liquid after being mixed.
It should be noted that the species of experimental liquid is set according to actual demand, got from air and liquid mixer 1
After various experimental liquids, sufficiently mixed in pipe-line mixer 2.
In addition, the temperature of constant temperature simulation box 3 is constant controllable, it is capable of the actual temperature of simulated production system, for knot
Dirt simulation provides more accurate environment temperature.
Pressure control device and multiple foulings simulation pipe are provided in constant temperature simulation box 3, pressure control device is used to distinguish
The pressure in each fouling simulation pipe is controlled, makes the mixed experimental liquid knot in each fouling simulation pipe under the effect of the pressure
Dirt.
It should be noted that pressure control device accurately can independently control the pressure in each fouling simulation pipe,
The fouling condition under the different pressure condition of pipe die plan can be simulated in order to fouling.
Preferably, each fouling simulation pipe can be sequentially communicated, and first fouling simulation pipe can be with pipe-line mixer 2
Connection, the last one fouling simulation pipe can be connected with for collecting the fouling liquid collecting tank of liquid after fouling.That so does is good
Place is the actual conditions that can simulate each fouling simulation pipe in production system.
Preferably, each fouling simulation pipe can also not connect each other, and each fouling simulation pipe can be mixed with pipeline respectively
Device 2 connects, and can be connected respectively with for collecting the fouling liquid collecting tank of liquid after fouling.The advantage of doing so is that convenient for only
On the spot simulate the structure situation in fouling simulation pipe.
Preferably, for ease of simulating a variety of situations, fouling simulation pipe can be parallel with horizontal plane, can also hang down with horizontal plane
It is straight or at an angle, for example, can be in 0 °~90 °, convenient for the fouling condition of simulation fouling simulation pipe in the case of a variety of.
A kind of fouling simulator provided in this embodiment, can by being mixed to original liquid and initial gas
Influence of the gas for fouling is more accurately simulated, and is controlled by simulating the pressure in pipe to multiple foulings, energy
It enough realizes scaling tendency of the simulated experiment liquid in different pressures section, and different gas can be contained in accurate simulation production fluid
During body, experimental liquid is in fouling simulation in-tube fouling trend, amount of scale buildup, fouling position etc., so as to be selection, the antiscale of antisludging agent
Treatment process provides accurately experimental data, it is ensured that the scale inhibition effect of antisludging agent is given full play to, and prevents scale inhibition is insufficient from leading
Cause happening for damage production system.
As shown in Fig. 2, the structure diagram of another embodiment for fouling simulator of the present invention, in the present embodiment,
Structure simulators can include 22,1 constant temperature simulation boxes of pipe-line mixer of air and liquid mixer 1,1 of wet tank 4,2
3rd, 1 gas mixer 7,3 of analytical instrument 6,1 metering pump 9 of gas reservoir 8,2 of fouling liquid collecting tank 5,1 and 2
Heater 10 is below described in detail these structures.
The quantity of wet tank 4 can be set according to actual demand, and each wet tank 4 connects respectively with each air and liquid mixer 1
Logical, each wet tank 4 is respectively used to store different types of liquid, as original liquid.
For example, when original liquid only has a kind, then wet tank 4 can only set 1；When original liquid has 2 kinds
When, then wet tank 4 can set 2；When liquid only has 3 kinds, then wet tank 4 can only set 3, with such
It pushes away.
Preferably, fouling simulator can also include：Gas mixer 7, gas mixer 7 can and air and liquid mixer
1 connection for obtaining two or more gas according to default partial pressure value, and each gas is mixed, as initial gas.
For example, gas mixer 7 can be connected with multiple gas reservoirs 8, these gas reservoirs 8 can store needs and be used for
The gas of fouling simulation, for example, in the fouling condition simulation of oil field development system, it is possible to store two in gas reservoir 8
Carbonoxide storage, hydrogen sulfide, natural gas etc., and pass through gas mixer 7 and mixed these gases according to default partial pressure value, make
For initial gas.
The quantity of air and liquid mixer 1 can also be set according to actual demand, and the quantity of air and liquid mixer 1 can be stored up with liquid
The quantity of tank 4 is consistent.Each air and liquid mixer 1 is respectively used to obtain original liquid from wet tank 4, and obtains initial gas, and
It is mixed, obtains experimental liquid.
It should be noted that the original liquid that initial gas conveys respectively with wet tank 4 can be mixed, also may be used
Only to be mixed with part original liquid, this is set according to actual demand.
For example, when original liquid is respectively A, B liquid, it is necessary in pipe 32 is simulated in fouling simulation when containing carbon dioxide,
Hydrogen sulfide is when gases, the influence to fouling and antisludging agent, then can have following several situations：
1. carbon dioxide can will be mixed into A liquid, hydrogen sulfide will be mixed into B liquid, to simulate carbonated and hydrogen sulfide
Oil/gas well during producing and collecting defeated, pressure, temperature etc. variation on gas dissolve smoothly influence, so as to accurate judgement knot
Dirty degree and fouling position.
2. the mixed gas of carbon dioxide and hydrogen sulfide can will be mixed into A liquid.
3. the mixed gas of carbon dioxide and hydrogen sulfide can will be mixed into A liquid, and will be also mixed into B liquid carbon dioxide and
The mixed gas of hydrogen sulfide.
4. carbon dioxide can will be mixed into A liquid or B liquid, the influence of carbon dioxide is only simulated.
As can be seen that the quantity of wet tank 4 and air and liquid mixer 1 can be set according to actual conditions.
Preferably, metering pump 9 is additionally provided between each wet tank 4 and each air and liquid mixer 1 interconnected, measured
Pump 9 is used to control the input of original liquid according to preset ratio.
By metering pump 9, the original liquid respectively stated in wet tank 4 can be transported to gas-liquid exactly by preset ratio
In mixer 1.
It obtains, by after the mixed each experimental liquid of original liquid and initial gas, inciting somebody to action again by pipe-line mixer 2 each
Experimental liquid is sufficiently mixed, and is conveyed to constant temperature simulation box 3, and fouling is carried out in constant temperature simulation box 3.
Preferably, between each air and liquid mixer 1 and pipe-line mixer 2, heater 10 is additionally provided with, heater 10 is used for
All experimentss liquid is heated to preset temperature.
Preferably, 7 pressure-regulating valves 31 and 4 fouling simulation pipes 32 are provided in constant temperature simulation box 3, wherein, these
Pressure-regulating valve 31 may be collectively referred to as pressure control device, and pressure control device is used to control respectively in each fouling simulation pipe 32
Pressure makes the fouling in each fouling simulation pipe 32 under the effect of the pressure of mixed experimental liquid.
A kind of preferred embodiment of fouling simulation 32 structure of pipe is given below.
Preferably, multiple transfer tubes are further included in constant temperature simulation box 3, whole fouling simulation pipes 32 are connected successively by transfer tube
Logical, each fouling simulation pipe 32 is also connected by transfer tube with fouling liquid collecting tank 5 respectively, and each pressure-regulating valve 31 is separately positioned on
On each transfer tube, for controlling the pressure in each fouling simulation pipe 32.
That is, each fouling simulation pipe 32 is with next stage fouling simulation pipe 32 in addition to connecting, can also directly with
Fouling liquid collecting tank 5 connects, the advantage of doing so is that, it is assumed that entire fouling simulator has 10 fouling simulation pipes 32, now
It merely desires to simulate pipe 32 with 3 foulings therein to be simulated, then as long as this 3 foulings to be simulated to the pressure tune between pipes 32
Section valve 31 is opened, and the 3rd fouling is simulated the pressure-regulating valve 31 between pipe 32 and fouling liquid collecting tank 5 and is opened, remaining
Pressure-regulating valve 31 is all closed, then only can be carried out fouling with this 3 fouling simulation pipes 32 and be simulated, have easy to use
The advantages of, the degree and scope for needing to carry out fouling simulation according to actual demand can be set, can be convenient for obtaining more accurate
Result.
The pressure of fouling simulation pipe 32 is separately controlled by multiple pressure-regulating valves 31, and according to pressure-regulating valve
31 switch can control the quantity for needing fouling simulation pipe 32 to be used, can be in order to which experimental liquid is in the fouling of multiple ranks
It simulates and fouling is carried out in pipe 32, and in multiple foulings simulation pipe 32, it can be independently under the conditions of simulation different pressures
Fouling condition, can improve fouling simulation efficiency.
Fouling liquid collecting tank 5 is for collecting mixed experimental liquid remaining knot after fouling in each fouling simulation pipe 32
Dirty liquid, analytical instrument 6 are used to analyze the ingredient of fouling liquid.
The preferred embodiment that a kind of ingredient to fouling liquid is analyzed is given below.
It preferably, can be according to SY/T5673-1993《Scale inhibitor for oilfield Reliable Evaluating Methods of Their Performance》Defined method carries out
Calcium ion titrates, and calcium ion concentration is measured, to evaluate fouling condition.
Preferably, the knot of each respective conditions can also be calculated by weighing the fouling quality in different foulings simulation pipes 32
The scale inhibition performance of dirty rate and antisludging agent, and with reference to titration results, overall merit scaling tendency and antiscale efficiency.
For example, can scale inhibition performance be calculated by the following formula：
Φ=100 × (W1-W2)/W1；
Wherein, Φ is scale inhibition performance, W1Not add amount of scale buildup during antisludging agent, W2To add the amount of scale buildup after antisludging agent.
Specifically, illustrated with an example.Test A water and the resistance of the mixed fouling condition of B water and antisludging agent C
Dirty rate.
After fouling simulation is carried out during pipe 32 is simulated in fouling, data below is obtained：
Fouling pipe quality (W0)：380.58g；
During non-antisludging agent C, after A water is tested with the fouling of B water, fouling pipe quality (W0′)：382.67g；
After adding antisludging agent C, after A water is tested with the fouling of B water, fouling pipe quality (W0″)：380.96g.
Then：W1=W0′-W0=382.67g-380.58g=2.09g；
W2=W0″-W0=380.96g-380.58g=0.38g；
When being mixed to A water and B water, medicament C has scale inhibition performance：
Φ=100 × (W1-W2)/W1=100 × (2.09-0.38)/2.09=81.8%.
Preferably, at the inlet of fouling liquid collecting tank 5, filter 33 is additionally provided with, filter 33 is tied for filtering
The solids foul generated in dirty liquid.
Preferably, the inertial gas tank 11 connected with fouling liquid collecting tank 5 is further included, inertial gas tank 11 is used to adjust
Save the pressure in each fouling simulation pipe 32.
By inertial gas tank 11, inert gas can be conveyed into fouling simulator, to realize in maintenance system
Pressure, and can keep simulation associated gas partial pressure.
A kind of fouling simulator provided in this embodiment, can by being mixed to original liquid and initial gas
Influence of the gas for fouling is more accurately simulated, and is controlled by simulating the pressure in pipe 32 to multiple foulings,
It can realize scaling tendency of the simulated experiment liquid in different pressures section, and difference can be contained in accurate simulation production fluid
During gas, experimental liquid scaling tendency, amount of scale buildup, fouling position etc. in fouling simulation pipe 32, so as to for antisludging agent selection,
Scale control treatments technique provides accurately experimental data, it is ensured that the scale inhibition effect of antisludging agent is given full play to, and prevents scale inhibition from not filling
Dividing causes to damage happening for production system.
On this basis, by being heated to experimental liquid, experimental liquid can be made to be uniformly mixed in mixing, and
The actual environment for needing to simulate can be more accurately restored, also, by analyzing fouling condition, it can be easily
The scale inhibition effect of antisludging agent is analyzed, convenient for selecting suitable effective antisludging agent.
As shown in figure 3, the flow diagram of one embodiment for fouling analogy method of the present invention, in the present embodiment,
The fouling analogy method may comprise steps of：
S1 obtains two or more gas according to default partial pressure value, and each gas is mixed, as initial gas.
S2 controls the input of original liquid according to preset ratio.
S3 obtains two or more original liquids, and each original liquid is mixed respectively with initial gas respectively, right
Obtain two or more experimental liquids with answering.
All experimentss liquid is heated to preset temperature, and each experimental liquid is mixed by S4, is transported to multiple foulings
It simulates in pipe.
S5 controls the pressure in each fouling simulation pipe, makes mixed experimental liquid under the effect of the pressure each respectively
In-tube fouling is simulated in fouling, and controls to adjust the pressure in each fouling simulation pipe respectively in real time.
S6, the interior solids foul generated of filtering fouling liquid are collected mixed experimental liquid and are tied in each fouling simulation pipe
Remaining fouling liquid after dirt.
S7 analyzes the ingredient of fouling liquid.
A kind of fouling analogy method provided in this embodiment, can by being mixed to original liquid and initial gas
Influence of the gas for fouling is more accurately simulated, and is controlled by simulating the pressure in pipe to multiple foulings, energy
It enough realizes scaling tendency of the simulated experiment liquid in different pressures section, and different gas can be contained in accurate simulation production fluid
During body, experimental liquid is in fouling simulation in-tube fouling trend, amount of scale buildup, fouling position etc., so as to be selection, the antiscale of antisludging agent
Treatment process provides accurately experimental data, it is ensured that the scale inhibition effect of antisludging agent is given full play to, and prevents scale inhibition is insufficient from leading
Cause happening for damage production system.
Reader should be understood that in the description of this specification, reference term " one embodiment ", " some embodiments ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment or example description, structure,
Material or feature are contained at least one embodiment of the present invention or example.In the present specification, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the different embodiments described in this specification or example and different embodiments or exemplary spy
Sign is combined and combines.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is put, may be referred to the corresponding process in preceding method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed apparatus and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, is only
A kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units or component can combine or
Person is desirably integrated into another system or some features can be ignored or does not perform.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
Component may or may not be physical location, you can be located at a place or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected to realize the mesh of the embodiment of the present invention according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that unit is individually physically present or two or more units integrate in a unit.It is above-mentioned integrated
The form that hardware had both may be employed in unit is realized, can also be realized in the form of SFU software functional unit.
If integrated unit is realized in the form of SFU software functional unit and is independent production marketing or in use, can
To be stored in a computer read/write memory medium.Based on such understanding, technical scheme substantially or
Saying all or part of the part contribute to the prior art or the technical solution can be embodied in the form of software product
Out, which is stored in a storage medium, is used including some instructions so that a computer equipment
(can be personal computer, server or the network equipment etc.) performs all or part of each embodiment method of the present invention
Step.And foregoing storage medium includes：USB flash disk, mobile hard disk, are deposited at read-only memory (ROM, Read-OnlyMemory) at random
The various media that can store program code such as access to memory (RAM, RandomAccessMemory), magnetic disc or CD.
More than, it is only specific embodiment of the invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of fouling simulator, which is characterized in that including：More than two air and liquid mixers, pipe-line mixer and constant temperature
Simulation box, wherein：
Each air and liquid mixer is respectively used to obtain original liquid and initial gas, and is mixed, and obtains experimental liquid；
The pipe-line mixer is conveyed to the constant temperature simulation box for obtaining whole experimental liquids after being mixed；
Pressure control device and multiple foulings simulation pipe are provided in the constant temperature simulation box, the pressure control device is used to divide
The pressure in each fouling simulation pipe is not controlled, makes the mixed experimental liquid under the action of the pressure in each institute
State fouling simulation in-tube fouling.
2. fouling simulator according to claim 1, which is characterized in that further include：The fouling liquid collecting tank of sealing and
Analytical instrument, the fouling liquid collecting tank are tied for collecting the mixed experimental liquid in each fouling simulation pipe
Remaining fouling liquid after dirt, the analytical instrument are used to analyze the ingredient of the fouling liquid.
3. fouling simulator according to claim 2, which is characterized in that in the inlet of the fouling liquid collecting tank
Place, is additionally provided with filter, and the filter is used to filter the solids foul generated in the fouling liquid.
4. fouling simulator according to claim 2, which is characterized in that further include and connected with the fouling liquid collecting tank
Inertial gas tank, the inertial gas tank is used to adjust the pressure in each fouling simulation pipe.
5. fouling simulator according to claim 2, which is characterized in that further include multiple biographies in the constant temperature simulation box
Defeated pipe, the pressure control device include：Multiple pressure-regulating valves, all the fouling simulation are managed through the transfer tube successively
Connection, each fouling simulation pipe are also connected by the transfer tube with the fouling liquid collecting tank respectively, each pressure tune
Section valve is separately positioned on each transfer tube, for controlling the pressure in each fouling simulation pipe.
6. fouling simulator according to claim 1, which is characterized in that further include：More than two wet tanks, respectively
The wet tank connects respectively with each air and liquid mixer, and each wet tank is respectively used to store different types of liquid
Body, as the original liquid.
7. fouling simulator according to claim 6, which is characterized in that each wet tank for interconnecting with
Metering pump is additionally provided between each air and liquid mixer, the metering pump is used to control the original liquid according to preset ratio
Input.
8. fouling simulator according to any one of claim 1 to 7, which is characterized in that further include：Gas mixing
Device for obtaining two or more gas according to default partial pressure value, and each gas is mixed, as the initial gas
Body.
9. fouling simulator according to any one of claim 1 to 7, which is characterized in that in each gas-liquid mixed
Between device and the pipe-line mixer, heater is additionally provided with, the heater is used for all heating test liquids extremely
Preset temperature.
10. a kind of fouling analogy method, which is characterized in that including：
Two or more original liquids is obtained respectively, and each original liquid is mixed respectively with initial gas, it is corresponding
Ground obtains two or more experimental liquids；
Each experimental liquid is mixed, and is transported in multiple fouling simulation pipes；
The pressure in each fouling simulation pipe is controlled respectively, makes the mixed experimental liquid under the action of the pressure
In each fouling simulation in-tube fouling.
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| CN110905457A (en) * | 2018-08-27 | 2020-03-24 | 中国石油天然气股份有限公司 | CO2Simulation device and method for gas drive shaft scaling |
| CN111808591A (en) * | 2020-07-27 | 2020-10-23 | 北京贝斯特佳科技有限公司 | Shaft salt crystal dispersant, and regulation and control method and application thereof |
| CN112983397A (en) * | 2021-05-14 | 2021-06-18 | 西南石油大学 | Physical simulation device for scaling ion source of high-temperature high-pressure water producing gas well |
| CN113006768A (en) * | 2019-12-18 | 2021-06-22 | 中国石油化工股份有限公司 | Gas well scaling simulation device and simulation method |
| CN114764092A (en) * | 2021-01-12 | 2022-07-19 | 中国石油天然气股份有限公司 | Scaling simulation device and scaling simulation method |
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| CN112983397A (en) * | 2021-05-14 | 2021-06-18 | 西南石油大学 | Physical simulation device for scaling ion source of high-temperature high-pressure water producing gas well |
| CN115236119A (en) * | 2022-09-21 | 2022-10-25 | 成都理工大学 | System for simulating carbonate scaling of geothermal well and simulation method thereof |
| CN115236119B (en) * | 2022-09-21 | 2022-12-20 | 成都理工大学 | System for simulating carbonate scaling of geothermal well and simulation method thereof |
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