CN103471966A - Device and method for testing Soret parameters of fluid in pore medium of oil and gas reservoir - Google Patents
Device and method for testing Soret parameters of fluid in pore medium of oil and gas reservoir Download PDFInfo
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- CN103471966A CN103471966A CN2013103319851A CN201310331985A CN103471966A CN 103471966 A CN103471966 A CN 103471966A CN 2013103319851 A CN2013103319851 A CN 2013103319851A CN 201310331985 A CN201310331985 A CN 201310331985A CN 103471966 A CN103471966 A CN 103471966A
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- 239000012530 fluid Substances 0.000 title claims abstract description 39
- 239000011148 porous material Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 90
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
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- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
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- 229930195733 hydrocarbon Natural products 0.000 claims description 33
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
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- 238000009434 installation Methods 0.000 claims description 19
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- 239000007788 liquid Substances 0.000 claims description 12
- 210000002445 nipple Anatomy 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
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- 238000009792 diffusion process Methods 0.000 abstract description 16
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Abstract
The invention provides a device and a method for testing Soret parameters of fluid in pore media of an oil and gas reservoir, wherein the testing device comprises a reaction tube (10), both ends of the reaction tube (10) are respectively provided with an end cover assembly (11), quartz sand (12) is arranged in the reaction tube (10), the reaction tube (10) is provided with a heating device (13) and a temperature control device (14), and the reaction tube (10) is also provided with a plurality of sampling ports (15). The device and the method for testing the Sorte parameters in the fluid in the pore medium of the oil and gas reservoir can truly simulate the oil and gas reservoir conditions, realize the measurement of the Sorte effect, enable the deep research of the influence of the gravity action on the diffusion process to be possible, and lay the foundation for accurate calculation and the display of rules.
Description
Technical field
The present invention relates to oil-gas field development experimental technique field, the particularly proving installation of a kind of hydrocarbon-bearing pool pore media inner fluid Suo Ruite (Soret) parameter, or a kind of method of testing of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter.
Background technology
Soret effect (Soret effect) is the important phenomenon in diffuse fluid research, and it refers to: in binary mixture, because action of thermal difference makes a kind of molecule, by low-temperature space, to high-temperature region, moved, another kind of molecule is moved to low-temperature space by high-temperature region.The Suo Ruite parameter is used for describing this diffusion of components performance caused by the temperature difference, is defined as follows:
In formula: S
t--the Suo Ruite parameter; C
1--the concentration of component 1;
concentration change amount under the small temperature difference effect.
The Soret effect is studied in a lot of fields, at present along with CO
2bury and utilize extensively carrying out of research project, the Soret effect in porous medium is to CO
2bury the diffusion of component in process and need quantitative test.In the practical study process, the Soret effect can't be separated with Action of Gravity Field, thereby China and European Studies person's cooperation intend carrying out the Soret Active parts diffusion research under microgravity condition, thereby by Soret effect and quantitative the distinguishing of Action of Gravity Field.Due to the restriction in outer space experiment space, experimental provision can not be excessive, and container that can only selection of small can't be simulated the diffusion of components situation in porous medium; In the ground experiment chamber, more existing researchers have analyzed the diffusion of components process in porous medium, analyze and take method for numerical simulation as main, and experiment test work seldom.In less experiment, take again naive model as main, do not take into full account the impact of formation condition.Above two kinds of situations, make the diffusion of components research under the hydrocarbon-bearing pool condition can't Accurate Analysis Soret effect or Action of Gravity Field.
Summary of the invention
For the Soret effect that solves existing experimental facilities and the method diffusion of components under can't Accurate Analysis hydrocarbon-bearing pool condition or the technical matters of Action of Gravity Field, the inventor provides a kind of proving installation and method of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter.The proving installation of this hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter and method can real simulation hydrocarbon-bearing pool conditions, realize the measurement of Soret effect, and making to further investigate Action of Gravity Field becomes possibility to the impact of diffusion process.
The present invention for the technical scheme that solves its technical matters employing is: a kind of proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter, comprise reaction tube, the two ends of reaction tube are equipped with the end cap assembly, be provided with silica sand in reaction tube, reaction tube is provided with heating arrangement and attemperating unit, also is provided with a plurality of sample taps on reaction tube.
Reaction tube comprises the end steel cylinder that is separately positioned on the reaction tube two ends and is arranged on the middle steel cylinder at reaction tube middle part, connects by heat insulation pipe nipple between end steel cylinder and middle steel cylinder.
Heat insulation pipe nipple is tubular, and heat insulation pipe nipple comprises pressure-bearing urceolus and the heat insulation inner core be socketed in the pressure-bearing urceolus, and end steel cylinder and middle steel cylinder all are tightly connected with heat insulation inner core.
The end cap assembly comprises that enclosing cover and sealing are plugged in the inner plunger of enclosing cover, and enclosing cover and inner plunger all are tightly connected with the end steel cylinder, in inner plunger, be provided with can with the inner via hole of the internal communication of end steel cylinder.
In reaction tube, the sample tap place is provided with mesh pad, and the diameter of mesh pad equals the internal diameter of reaction tube.
Mesh pad contains multi-layer silk screen, and the aperture of described silk screen is less than the particle diameter of silica sand.
Heating arrangement is arranged on an end steel cylinder, and attemperating unit is arranged on another end steel cylinder.
An end cap assembly is connected with for inject the first injection device of crude oil sample in reaction tube, and another end cap assembly is connected with for inject the second injection device that supplements liquid in reaction tube.
A kind of method of testing of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter comprises the following steps:
Step 1: inject crude oil sample with the first above-mentioned injection device in above-mentioned reaction tube, with the second above-mentioned injection device, in this reaction tube, inject supplementary liquid;
Step 2: make the temperature of the temperature of this reaction tube one end lower than this reaction tube other end;
Step 3: in sample tap sampling described above;
Step 4: at different moment repeating steps three.
Between step 1 and step 2, make this reaction tube standing one day, detect the sealing of this reaction tube.
The invention has the beneficial effects as follows:
1. the fluid components concentration change situation in real simulation hydrocarbon-bearing pool pore media;
2. method of testing has strictly been controlled the impact of outside wall temperature conduction on inner diffusion;
3. the process that but the method for testing adaptive testing is of long duration, diffusion is faint;
4. method of testing can effectively be analyzed the impact of Action of Gravity Field.
The accompanying drawing explanation
Proving installation below in conjunction with accompanying drawing to hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter of the present invention is described in further detail.
Fig. 1 is the structural representation of the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter.
Fig. 2 is the structural representation of reaction tube.
Fig. 3 is the structural representation of heat insulation pipe nipple.
Fig. 4 is the structural representation of end cap assembly.
Fig. 5 is the temperature profile of existing method and method provided by the invention diverse location in reaction tube.
Fig. 6 is the concentration profile of existing method and method provided by the invention diverse location in reaction tube.
10. reaction tubes wherein, 101. end steel cylinders, steel cylinders in the middle of 102., 11. the end cap assembly, 111. enclosing covers, 112. inner plunger, 12. silica sand, 13. heating arrangements, 131. heat circulation, 132. the heating temperature control device, 14. attemperating units, 141. Fluid Circulation coil pipes, 142. the heating temperature control device, 143. refrigeration temp .-controllers, 15. sample taps, 16. heat insulation pipe nipple, 161. pressure-bearing urceolus, 162. heat insulation inner cores, 17. mesh pad, 18. the first injection device, 181. intermediate receptacles, 19. second injection devices, 191. intermediate receptacle, 21. valve, 22. stay-warm cases, 23. supports.
Embodiment
Proving installation below in conjunction with accompanying drawing to hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter of the present invention is elaborated.A kind of proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter, comprise reaction tube 10, the two ends of reaction tube 10 are equipped with end cap assembly 11, be provided with silica sand 12 in reaction tube 10, reaction tube 10 is provided with heating arrangement 13 and attemperating unit 14, also be provided with a plurality of sample taps 15 on reaction tube 10, as depicted in figs. 1 and 2.
The solid silica sand 12 of reaction tube 10 of long tubular, between the porous air that after silica sand 12 compactings, simulation hydrocarbon-bearing pool inner fluid distributes.For guaranteeing that temperature difference heat conducts between pore media, installed respectively instlated tubular additional at the two ends of reaction tube, reaction tube main body inner wall sprayed silicon rubber thermofin, the reaction tube outer wall adds stay-warm case 22, makes reaction tube 10 internal temperatures change not influenced by ambient temperature.In intermediate receptacle 181, crude oil sample is housed, supplementary liquid is housed in intermediate receptacle 191, when reaction tube 10 horizontal positioned, the heavier supplementary liquid of density occupies lower space, it not only plays the effect of constant reaction pressure, and by supplementing the continuous increase of liquid, corresponding influence degree of subduing gravity.Reaction tube 10 is arranged on support 23, and reaction tube 10 can be take horizontal direction as the axle rotation, when reaction tube 10 is vertically placed, can effectively monitor the effect degree of gravitational effect.Reaction tube 10 has 7 sample taps 15, keeps sampling under the condition of constant pressure, and analysing fluid change of component situation, can record not in the same time, the Soret parameter of diverse location.
Concrete, reaction tube 10 comprises the end steel cylinder 101 that is separately positioned on reaction tube 10 two ends and the middle steel cylinder 102 that is arranged on reaction tube 10 middle parts, between end steel cylinder 101 and middle steel cylinder 102, by heat insulation pipe nipple 16, connects, as shown in Figure 2.Sprayed silicon rubber heat insulating coat after the inwall polishing of middle steel cylinder 102, reaction tube 10 has 7 sample taps 15, is uniformly distributed 5 sample taps 15 on middle steel cylinder 102.Two other sample tap 15 is arranged on the two ends of reaction tube 10, and these two sample taps 15 can have concurrently and inject or the output function.
Heat insulation pipe nipple 16 is tubular, and heat insulation pipe nipple 16 comprises pressure-bearing urceolus 161 and the heat insulation inner core 162 be socketed in pressure-bearing urceolus 161, and end steel cylinder 101 and middle steel cylinder 102 all are tightly connected with heat insulation inner core 162, as shown in Figure 3.Pressure-bearing urceolus 161 is the steel pipes with interior screw thread, the material of heat insulation inner core 162 is the peek material that heat-proof quality is good and have better physical strength, there are O type circle draw-in groove and interior screw thread in the inside of heat insulation inner core 162, peg graft with end steel cylinder 101 and 102 sealings of middle steel cylinder respectively in the two ends of heat insulation inner core 162, O type circle can guarantee the sealing of system.Heat insulation inner core 162 outsides have male thread, and heat insulation inner core 162 coordinates for being threaded with pressure-bearing urceolus 161, can make like this reaction tube 10 bearing capacities more reliable.
In reaction tube 10, sample tap 15 places are provided with mesh pad 17, and the thickness of mesh pad 17 is 1mm, and the diameter of mesh pad 17 equals the internal diameter of reaction tube 10.Crude oil seepage flow resistance in mesh pad 17, far below the crude oil seepage flow resistance in pore media, can make sampling process steady like this, as far as possible little near the disturbance that mesh pad 17, intrapore crude oil causes.
In addition, an end cap assembly 11 is connected with for the first injection device 18 to the interior injection crude oil sample of reaction tube 10, and another end cap assembly 11 is connected with for supplement the second injection device 19 of liquid to the interior injection of reaction tube 10.Concrete, an end cap assembly 11 is connected with intermediate receptacle 181, intermediate receptacle 181 is connected with the first injection device 18, another end cap assembly 11 is connected with intermediate receptacle 191, intermediate receptacle 191 is connected with the second injection device 19, the first injection device 18 and the second injection device 19 are injection pump, and supplementary liquid is water.
A kind of method of testing of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter, the method for testing of described hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter comprises the following steps:
The ordinary crude oils majority is very low by the above component concentration of C1-C30(ordinary crude oils C30, except asphaltic crude) polycomponent forms, and the concentration change of research crude oil different component in pore media is the in-depth analysis of diffusion of components, seepage flow mechanism.Utilize said method and device, when reducing gravity effect, adopt the mode of reaction tube horizontal positioned as far as possible, measure the Soret parameter of crude oil different component.If the analysis Action of Gravity Field, the mode that adopts reaction tube vertically to place.
Step 1: with the first above-mentioned injection device 18, to the interior injection crude oil sample of reaction tube 10, with the second injection device 19, to the interior injection of this reaction tube 10, supplement liquid.Concrete, at first according to designing requirement, as shown in Figure 1, silica sand 12 is tamped in reaction tube 10, do horizontal adjustment after installation.After vacuumizing, with the first injection device 18, ready crude oil sample is injected in reaction tube 10 through intermediate receptacle 181.Supplementary liquid is housed, as the intermediate receptacle 191 of distilled water also is communicated with reaction tube, with the second injection device 19, to the interior injection of this reaction tube 10, supplements liquid, make the first injection device 18 and the second injection device 19 maintenance uniform pressure, base measuring temperature probe.
Step 2: make the temperature of the temperature of these reaction tube 10 1 ends lower than these reaction tube 10 other ends; As guaranteed under the prerequisite that temperature probe measurement temperature is identical, the reaction tube both sides provide stable thermal source to control simultaneously; For example: 60 ℃, left side, 30 ℃, right side.Confirm that stay-warm case is effective, reduce the interference of environment temperature.
Step 3: in 15 samplings of 7 sample taps; At the second injection device 19, keep under the prerequisite of pressure-keeping functions, sampling action requires steadily, and the valve opening amount is very little.Carry out at once the concentration of component analysis after sampling.
Step 4: at different moment repeating steps three.
Until experiment finishes.Flow process, equipment arrange.Calculate according to the formula one in background technology, obtain the Soret parameter of different time points, diverse location.
In addition, between step 1 and step 2, need to make this reaction tube 10 standing one day, detect the sealing of this reaction tube 10.Specifically, sample strain reaches design pressure, during as 40MPa, and the valve 21 at off-response pipe 10 two ends.Whether stable standing 1 day of reaction tube 10, observe pressure, stops micro-phenomenon of oozing.Occur micro-ly while oozing situation, near breakthrough, small pressure reduction will occur, the disturbance that pressure reduction causes diffusion of components, migration is much larger than the effect of the temperature difference, thereby stops micro-oozing and be strict control.
Comparison in the method for testing of this hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter and conventional vessel, the present invention has the following advantages:
1. the fluid components concentration change situation in real simulation hydrocarbon-bearing pool pore media;
2. method of testing has strictly been controlled the impact of outside wall temperature conduction on inner diffusion;
3. the process that but the method for testing adaptive testing is of long duration, diffusion is faint;
4. method of testing can effectively be analyzed the impact of Action of Gravity Field.
Below introduce the method for testing and existing methodical comparison of test results of this hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter.
Experiment content: under the 40MPa condition, the two ends temperature is respectively 30 ℃ and 60 ℃; In oil component, C1-C30 content accounts for 99.9mol%, and wherein C1 content is 24.6%.
Adopt the mode of reaction tube horizontal positioned, the experimental implementation process is as aforementioned.At reaction tube 0cm(30 ℃), 33cm, 50cm, 66cm, 84cm and 100cm(60 ℃) locate sample analysis C1 content.Fig. 5 has listed diverse location temperature test situation after temperature stabilization, the impact of conventional method receptor barrel heat conduction, and the temperature value of measurement is higher, and is prone to recessed section in centre position.Temperature curve is nonlinearities change.And the coated designs in the heat insulation pipe nipple of method provided by the invention and urceolus makes the linear distribution of temperature curve, test result and theory are close.
Fig. 6 has listed tx, and C1 content is with the variable in distance situation constantly, and conventional method has jumping characteristic at temperature low side C1 content, and new method demonstrates stationarity preferably.This species diversity is obviously that the method for testing difference causes, accurate calculating and manifesting of rule that the data that new method provides are the Soret parameter lay a good foundation.
The above, be only specific embodiments of the invention, can not limit the scope that invention is implemented with it, thus the displacement of its equivalent assemblies, or the equivalent variations of doing according to scope of patent protection of the present invention and modification, all should still belong to the category that this patent is contained.
Claims (10)
1. the proving installation of a hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter, it is characterized in that, the proving installation of described hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter comprises reaction tube (10), the two ends of reaction tube (10) are equipped with end cap assembly (11), be provided with silica sand (12) in reaction tube (10), reaction tube (10) is provided with heating arrangement (13) and attemperating unit (14), also is provided with a plurality of sample taps (15) on reaction tube (10).
2. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 1, it is characterized in that: reaction tube (10) comprises the end steel cylinder (101) that is separately positioned on reaction tube (10) two ends and is arranged on the middle steel cylinder (102) at reaction tube (10) middle part, connects by heat insulation pipe nipple (16) between end steel cylinder (101) and middle steel cylinder (102).
3. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 2, it is characterized in that: heat insulation pipe nipple (16) is tubular, heat insulation pipe nipple (16) comprises pressure-bearing urceolus (161) and is socketed in the heat insulation inner core (162) in pressure-bearing urceolus (161), and end steel cylinder (101) and middle steel cylinder (102) all are tightly connected with heat insulation inner core (162).
4. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 2, it is characterized in that: end cap assembly (11) comprises that enclosing cover (111) and sealing are plugged in the inner plunger (112) of enclosing cover (111), enclosing cover (111) and inner plunger (112) all are tightly connected with end steel cylinder (101), in inner plunger (112), be provided with can with the inner via hole of the internal communication of end steel cylinder (101).
5. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 1, it is characterized in that: in reaction tube (10), sample tap (15) locates to be provided with mesh pad (17), and the diameter of mesh pad (17) equals the internal diameter of reaction tube (10).
6. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 5, it is characterized in that: mesh pad (17) contains multi-layer silk screen, and the aperture of described silk screen is less than the particle diameter of silica sand (12).
7. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 2, it is characterized in that: it is upper that heating arrangement (13) is arranged on an end steel cylinder (101), and attemperating unit (14) is arranged on another end steel cylinder (101).
8. the proving installation of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 1, it is characterized in that: an end cap assembly (11) is connected with for inject first injection device (18) of crude oil sample in reaction tube (10), and another end cap assembly (11) is connected with for inject the second injection device (19) that supplements liquid in reaction tube (10).
9. the method for testing of a hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter, it is characterized in that: the method for testing of described hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter comprises the following steps:
Step 1: inject crude oil sample with the first injection device claimed in claim 8 (18) in the described reaction tube of any one (10) in claim 1～8, with the second injection device claimed in claim 8 (19), in this reaction tube (10), inject supplementary liquid;
Step 2: make the temperature of the temperature of these reaction tube (10) one ends lower than this reaction tube (10) other end;
Step 3: the described sample tap of any one (15) sampling in claim 1～8;
Step 4: at different moment repeating steps three.
10. the method for testing of hydrocarbon-bearing pool pore media inner fluid Suo Ruite parameter according to claim 9, is characterized in that: between step 1 and step 2, make this reaction tube (10) standing one day, detect the sealing of this reaction tube (10).
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| CN201310331985.1A CN103471966B (en) | 2013-08-01 | 2013-08-01 | Device and method for testing Soret parameters of fluid in pore medium of oil and gas reservoir |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208147A (en) * | 2019-06-24 | 2019-09-06 | 东北大学 | A kind of soret coefficient measuring device and method |
| CN111595733A (en) * | 2019-02-21 | 2020-08-28 | 中国石油化工股份有限公司 | Oil reservoir liquid hydrocarbon micro-leakage simulation experiment system |
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| JPS62122122A (en) * | 1985-11-21 | 1987-06-03 | Nec Corp | Diffusing method for impurity |
| JPH05152231A (en) * | 1991-11-28 | 1993-06-18 | Kokusai Electric Co Ltd | Method for measuring temperature distribution profile within furnace in vertical-type diffusion/cvd device |
| CN202195998U (en) * | 2011-09-16 | 2012-04-18 | 东北石油大学 | Device for testing diffusion coefficient of natural gas |
| EP2472244A2 (en) * | 2010-12-28 | 2012-07-04 | Mondragon Goi Eskola Politeknikoa Jose Maria Arizmendiarrieta, S.COOP. | Thermogravitational column for measuring the properties of gaseous fluids comprising nanoparticles |
| CN203422304U (en) * | 2013-08-01 | 2014-02-05 | 中国石油天然气股份有限公司 | Device for testing Soret parameters of fluid in pore medium of oil and gas reservoir |
-
2013
- 2013-08-01 CN CN201310331985.1A patent/CN103471966B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62122122A (en) * | 1985-11-21 | 1987-06-03 | Nec Corp | Diffusing method for impurity |
| JPH05152231A (en) * | 1991-11-28 | 1993-06-18 | Kokusai Electric Co Ltd | Method for measuring temperature distribution profile within furnace in vertical-type diffusion/cvd device |
| EP2472244A2 (en) * | 2010-12-28 | 2012-07-04 | Mondragon Goi Eskola Politeknikoa Jose Maria Arizmendiarrieta, S.COOP. | Thermogravitational column for measuring the properties of gaseous fluids comprising nanoparticles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595733A (en) * | 2019-02-21 | 2020-08-28 | 中国石油化工股份有限公司 | Oil reservoir liquid hydrocarbon micro-leakage simulation experiment system |
| CN110208147A (en) * | 2019-06-24 | 2019-09-06 | 东北大学 | A kind of soret coefficient measuring device and method |
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| CN103471966B (en) | 2015-12-09 |
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