CN204514873U - Measure the device of the CONCENTRATION DISTRIBUTION of CO2 soluble surfaces activating agent in CO2/ aqueous systems in one dimensional fluid flow process - Google Patents
Measure the device of the CONCENTRATION DISTRIBUTION of CO2 soluble surfaces activating agent in CO2/ aqueous systems in one dimensional fluid flow process Download PDFInfo
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- CN204514873U CN204514873U CN201520216515.5U CN201520216515U CN204514873U CN 204514873 U CN204514873 U CN 204514873U CN 201520216515 U CN201520216515 U CN 201520216515U CN 204514873 U CN204514873 U CN 204514873U
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- intermediate receptacle
- surfactant
- core model
- activating agent
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Abstract
The utility model relates to CO in a kind of mensuration one dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, comprises one dimension core model; The entrance point of one dimension core model is connected with the emulsion generator and crude oil injection device that are in parallel, and the entrance point of emulsion generator is connected with the CO be in parallel
2gas injection apparatus and surfactant injection device; The endpiece of one dimension core model is connected with the gas source bottle and liquid holding bottle that are in parallel, and one dimension core model top has some equally spaced sample taps, and each sample tap is connected with sampler separately by the pipeline of band valve.In the sampling of model different parts, by aqueous phase and CO in sampler
2be separated, CO
2phase sample dissolution, in water, detects the concentration of surfactant, thus determines that surfactant is at supercritical CO by high performance liquid chromatography
2with the solubleness in water two-phase.The utility model structure is simple, and accuracy rate is high.
Description
Technical field
The utility model relates to a kind of device measuring the CONCENTRATION DISTRIBUTION of CO2 soluble surfaces activating agent in CO2/ aqueous systems in one dimensional fluid flow process, belongs to Oil-Gas Field Development Engineering technical field.
Background technology
Due to CO
2a kind of gas that solubleness is all very high in You Heshui, CO
2drive with low cost, achieve noticeable achievement, recyclable recycling, asepsis environment-protecting, when it is dissolved in crude oil in a large number, crude oil volumetric expansion can be made, viscosity declines, the interfacial tension between profit can also be reduced, improve oil recovery factor technology.In low-permeability oil deposit, high water-cut reservoir and Deep Reservoirs, there is good application prospect, and note CO
2gas can reduce CO in air
2amount, reduces greenhouse effect, is conducive to environmental protection.But under reservoir conditions, CO
2under being generally in supercriticality (temperature and pressure is in 31.1 DEG C and more than 7.38MPa respectively), there is very strong mobility, during the displacement of reservoir oil, easily produce has channeling or viscous fingering, form CO with water phase surfactant mixture
2emulsion is control CO
2the effective measures of mobility.But add surfactant and just relate to CO in flow event
2soluble surfaces activating agent is at CO
2the problem of the CONCENTRATION DISTRIBUTION in/aqueous systems, this provides foundation for the migration of surfactant in flow event.
Application number is the preparation method that patent discloses a kind of low concentration viscoelastic surfactant solution and the concentration determination of CN201110191927.4, some relevant researchs just determine compound in the partition factor had in water or in oil and CONCENTRATION DISTRIBUTION, but do not relate to rock core at flow event and CO
2soluble surfaces activating agent is at CO
2the method of the CONCENTRATION DISTRIBUTION in/aqueous systems, is not determined at CO in flow event
2soluble surfaces activating agent is at CO
2the method of the CONCENTRATION DISTRIBUTION in/aqueous systems and device.
Summary of the invention
For solving above technical deficiency, the utility model provides a kind of simple to operate, measures and measures CO in one dimensional fluid flow process accurately
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems.
The utility model is realized by following measures:
One of the present utility model measures CO in one dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, rockfill in comprising sand and be horizontal columniform one dimension core model;
The entrance point of described one dimension core model is connected with the emulsion generator and crude oil injection device that are in parallel, and the entrance point of described emulsion generator is connected with the CO be in parallel
2gas injection apparatus and surfactant injection device;
The endpiece of described one dimension core model is connected with the gas source bottle and liquid holding bottle that are in parallel by check valve, one dimension core model top has some equally spaced sample taps, sample tap is connected with the rock core in one dimension core model, and each sample tap is connected with sampler separately by the pipeline of band valve.
The utility model is preferred, above-mentioned sampler comprises columnar stainless steel casing and clear glass inner bag, stainless steel casing is provided with watch window, sampler two ends are respectively arranged with the inlet and liquid outlet that are connected with clear glass inner bag, inlet is connected by the sample tap of pipeline with one dimension core model, liquid outlet is connected with valve, and the inside of clear glass inner bag is provided with piston.
The utility model is preferred, above-mentioned one dimension core model comprises laterally columniform shell, laterally columniform inner chamber is provided with in shell, it is silica sand between 50-200 order that inner chamber fills up particle diameter, permeability is 500-2000mD, entrance point and the endpiece two ends of shell are respectively arranged with hickey, and the length of cylindrical cavity is 50-100cm, and diameter is 5-10cm.
Preferred further, the length of the cylindrical cavity of one dimension core model is 60-80cm, and diameter is 6-8cm.
The utility model is preferred, and above-mentioned crude oil injection device comprises crude oil intermediate receptacle, CO
2gas injection apparatus comprises CO
2gas intermediate receptacle, surfactant injection device comprises surfactant intermediate receptacle, crude oil intermediate receptacle, CO
2piston is provided with in gas intermediate receptacle and surfactant intermediate receptacle, and crude oil intermediate receptacle, CO
2gas intermediate receptacle and surfactant intermediate receptacle are connected with the constant-flux pump that can promote piston movement all separately.Cavity in three intermediate receptacles is divided into two chambers by piston respectively, CO
2a chamber of gas intermediate receptacle and CO
2constant-flux pump is communicated with, another chamber emulsion generator; A chamber of surfactant intermediate receptacle is communicated with surfactant constant-flux pump, another chamber emulsion generator; A chamber of crude oil intermediate receptacle is connected with constant-flux pump, and another chamber is by the inner space of pipeline and one dimension sand-packed model.
The utility model is preferred, at CO
2gas intermediate receptacle, surfactant intermediate receptacle, crude oil intermediate receptacle are all connected with tensimeter.
The utility model is preferred, and the spacing of above-mentioned sample tap is 5-10cm.
CO of the present utility model
2cO is loaded with respectively in gas intermediate receptacle, surfactant intermediate receptacle, crude oil intermediate receptacle
2gas, surfactant liquids, crude oil, constant-flux pump is used for displacement piston and moves, and the fluid in intermediate receptacle is entered one dimension sand-packed model.Emulsion generator can make the water phase surfactant mixture that passes through and CO
2gas produces emulsion, and check valve makes sand-packed model reach pressure needed for experiment.
Sampler of the present utility model is visual, and there is piston inside, then with pump, water is replaced out, by aqueous phase and CO
2be separated, CO
2phase sample dissolution is in water, and aqueous phase high performance liquid chromatography (HPLC) detects the concentration of surfactant, thus determines that surfactant is at supercritical CO
2with the solubleness in water two-phase, obtain the distribution migration characteristics of surfactant in oil reservoir.
The utility model is preferred, described CO
2gas intermediate receptacle built with gases at high pressure, by CO
2gas cylinder provides.
The utility model is preferred, and described emulsion generator can make the surfactant solution that passes through and CO
2gas generates emulsion.
The utility model is preferred, and described check valve has three interfaces, and one end connects inlet, and one end connects liquid outlet, last termination gas cylinder, for applying back pressure, makes sand-packed model reach pressure needed for experiment.
Adopt CO in said determination one dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the assay method that the device of the CONCENTRATION DISTRIBUTION in/aqueous systems carries out,
Step 1, is heated to simulating oil deposit temperature by the core temperature of one dimension core model, and maintains this temperature 10-12 hour, then sets back pressure by gas source bottle to check valve, to add confined pressure to rock core;
Step 2, by saturation water after the rock core vacuumizing of one dimension core model;
Step 3, injects crude oil in the rock core of one dimension core model, until rock core by mother oil displacement to irreducible water state;
Step 4, by CO
2gas and surfactant solution inject in emulsification generator and carry out emulsification, and are injected in rock core by the stable emulsion after emulsification, after pressure stability in rock core, namely reach supercritical CO
2emulsion seepage state;
Step 5, time in one dimension core model endpiece production fluid containing emulsion, by sample tap, rock core diverse location is sampled, after after sampling, in device to be sampled, emulsion vanishes, by the CO2 gas inject phased soln in sampler in ultrapure water, detect the concentration of surfactant by high performance liquid chromatography (HPLC), can obtain surfactant supercritical CO 2 mutually in solubleness.
The utility model is preferred, in step 4, by CO
2before gas and surfactant solution inject in emulsification generator and carry out emulsification, first adopt constant-flux pump by CO
2cO in gas intermediate receptacle
2surfactant solution in gas and surfactant intermediate receptacle compresses, and makes CO
2gaseous tension and surfactant solution pressure rise to identical with mother oil displacement pressure.
The utility model is preferred, CO in step 4
2mix in emulsion generator with the ratio of gas liquid ratio 2 ~ 5:1 with surfactant solution.
The beneficial effects of the utility model are: device of the present utility model adopts one dimension core model Tibetan that is virtually reality like reality oil environment, sample at model different parts, sampler is visual, accurately can detect the concentration of surfactant, thus determines that surfactant is at supercritical CO
2with the solubleness in water two-phase, obtain the one dimension distribution migration characteristics of surfactant in different temperatures pressure oil reservoir.Simple to operate, the accuracy rate of mensuration is high.
Accompanying drawing explanation
Fig. 1 the utility model measures CO in one dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the structural representation of the device of the CONCENTRATION DISTRIBUTION in/aqueous systems;
The structural representation of Fig. 2 the utility model sampler;
Wherein, 1 one dimension core model, 2 crude oil intermediate receptacles, 3 surfactant intermediate receptacles, 4CO
2gas intermediate receptacle, 5 constant-flux pumps, 6 emulsification generators, 7 six-way valves, 8 sample taps, 9 sampler, 10 check valves, 11 gas source bottles, 9-1 inlet, 9-2 watch window, 9-3 inner bag, 9-4 shell, 9-5 piston, 9-6 liquid outlet.
Embodiment
Below in conjunction with accompanying drawing, further detailed description is done to the utility model:
Device of the present utility model adopts similarity theory design one dimension core model 1 size and experiment parameter, CO
2carry surfactant injection model mutually, in the sampling of model different parts, by aqueous phase and CO in sampler 9
2be separated, CO
2phase sample dissolution, in water, detects the concentration of surfactant by high performance liquid chromatography (HPLC), thus determines that surfactant is at supercritical CO
2with the solubleness in water two-phase, obtain the one dimension distribution migration characteristics of surfactant in different temperatures pressure oil reservoir.
Embodiment 1
CO in a kind of mensuration one dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, as shown in Figure 1, 2, rockfill in comprising structure sand and be horizontal columniform one dimension core model 1; One dimension core model 1 comprises laterally columniform shell 9-4, laterally columniform inner chamber is provided with in shell 9-4, it is 50 object silica sands that inner chamber fills up particle diameter, permeability is 2000mD, entrance point and the endpiece two ends of shell 9-4 are respectively arranged with hickey, the length of cylindrical cavity is 50cm, and diameter is 5cm.
The entrance point of one dimension core model 1 is connected with the emulsion generator and crude oil injection device that are in parallel by six-way valve 7, the entrance point of emulsion generator is connected with the CO be in parallel
2gas injection apparatus and surfactant injection device; The endpiece of one dimension core model 1 is connected with the gas source bottle 11 and liquid holding bottle that are in parallel by check valve 10, one dimension core model 1 top has some equally spaced sample taps 8, sample tap 8 is connected with the rock core in one dimension core model 1, and each sample tap 8 is connected with sampler 9 separately by the pipeline of band valve.The spacing of sample tap 8 is 5cm, has altogether 9 sample taps 8.Realize sampling model inner fluid by sample tap 8, sampling more comprehensively.Crude oil injection device comprises crude oil intermediate receptacle 2, CO
2gas injection apparatus comprises CO
2gas intermediate receptacle 4, surfactant injection device comprises surfactant intermediate receptacle 3, is provided with piston 9-5 in crude oil intermediate receptacle 2, CO2 gas intermediate receptacle 4 and surfactant intermediate receptacle 3, and crude oil intermediate receptacle 2, CO
2gas intermediate receptacle 4 and surfactant intermediate receptacle 3 are connected with the constant-flux pump 5 that can promote piston 9-5 movement all separately.The pressure gage measuring range of intermediate receptacle is 0 ~ 25MPa, and for detecting the pressure of intermediate receptacle, intermediate receptacle volume is 500ml, respectively splendid attire CO
2gas, surfactant solution and crude oil.
Sampler 9 comprises columnar stainless steel casing 9-4 and clear glass inner bag 9-3, stainless steel casing 9-4 is provided with watch window 9-2, sampler 9 two ends are respectively arranged with the inlet 9-1 and liquid outlet 9-6 that are connected with clear glass inner bag 9-3, inlet 9-1 is connected with the sample tap 8 of one dimension core model 1 by pipeline, liquid outlet 9-6 is connected with valve, and the inside of clear glass inner bag 9-3 is provided with piston 9-5.
Embodiment 2
CO in mensuration one dimensional fluid flow process as described in Example 1
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, difference is:
One dimension core model 1 comprises laterally columniform shell 9-4, laterally columniform inner chamber is provided with in shell 9-4, it is silica sand between 200 orders that inner chamber fills up particle diameter, permeability is 500md, entrance point and the endpiece two ends of shell 9-4 are respectively arranged with hickey, the length of cylindrical cavity is 100cm, and diameter is 10cm.Have altogether 9 sample taps 8, the spacing of sample tap 8 is 10cm.
Embodiment 3
CO in mensuration one dimensional fluid flow process as described in Example 1
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, difference is:
One dimension core model 1 comprises laterally columniform shell 9-4, laterally columniform inner chamber is provided with in shell 9-4, it is silica sand between 100 orders that inner chamber fills up particle diameter, permeability is 1000md, entrance point and the endpiece two ends of shell 9-4 are respectively arranged with hickey, the length of cylindrical cavity is 80cm, and diameter is 80cm.Have altogether 9 sample taps 8, the spacing of sample tap 8 is 6cm.
Claims (7)
1. one kind measures CO in one dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, is characterized in that: rockfill in comprising sand and be horizontal columniform one dimension core model;
The entrance point of described one dimension core model is connected with the emulsion generator and crude oil injection device that are in parallel, and the entrance point of described emulsion generator is connected with the CO be in parallel
2gas injection apparatus and surfactant injection device;
The endpiece of described one dimension core model is connected with the gas source bottle and liquid holding bottle that are in parallel by check valve, one dimension core model top has some equally spaced sample taps, sample tap is connected with the rock core in one dimension core model, and each sample tap is connected with sampler separately by the pipeline of band valve.
2. measure CO in one dimensional fluid flow process according to claim 1
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, it is characterized in that: described sampler comprises columnar stainless steel casing and clear glass inner bag, stainless steel casing is provided with watch window, sampler two ends are respectively arranged with the inlet and liquid outlet that are connected with clear glass inner bag, inlet is connected by the sample tap of pipeline with one dimension core model, liquid outlet is connected with valve, and the inside of clear glass inner bag is provided with piston.
3. measure CO in one dimensional fluid flow process according to claim 1
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, it is characterized in that: described one dimension core model comprises laterally columniform shell, laterally columniform inner chamber is provided with in shell, it is silica sand between 50-200 order that inner chamber fills up particle diameter, permeability is 500-2000md, entrance point and the endpiece two ends of shell are respectively arranged with hickey, and the length of cylindrical cavity is 50-100cm, and diameter is 5-10cm.
4. measure CO in one dimensional fluid flow process according to claim 3
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, is characterized in that: the length of the cylindrical cavity of one dimension core model is 60-80cm, and diameter is 6-8cm.
5. measure CO in one dimensional fluid flow process according to claim 1
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, is characterized in that: described crude oil injection device comprises crude oil intermediate receptacle, CO
2gas injection apparatus comprises CO
2gas intermediate receptacle, surfactant injection device comprises surfactant intermediate receptacle, crude oil intermediate receptacle, CO
2piston is provided with in gas intermediate receptacle and surfactant intermediate receptacle, and crude oil intermediate receptacle, CO
2gas intermediate receptacle and surfactant intermediate receptacle are connected with the constant-flux pump that can promote piston movement all separately.
6. measure CO in one dimensional fluid flow process according to claim 5
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, is characterized in that: at CO
2gas intermediate receptacle, surfactant intermediate receptacle, crude oil intermediate receptacle are all connected with tensimeter.
7. measure CO in one dimensional fluid flow process according to claim 1
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, is characterized in that: the spacing of described sample tap is 5-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216515.5U CN204514873U (en) | 2015-04-10 | 2015-04-10 | Measure the device of the CONCENTRATION DISTRIBUTION of CO2 soluble surfaces activating agent in CO2/ aqueous systems in one dimensional fluid flow process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216515.5U CN204514873U (en) | 2015-04-10 | 2015-04-10 | Measure the device of the CONCENTRATION DISTRIBUTION of CO2 soluble surfaces activating agent in CO2/ aqueous systems in one dimensional fluid flow process |
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| Publication Number | Publication Date |
|---|---|
| CN204514873U true CN204514873U (en) | 2015-07-29 |
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| CN201520216515.5U Withdrawn - After Issue CN204514873U (en) | 2015-04-10 | 2015-04-10 | Measure the device of the CONCENTRATION DISTRIBUTION of CO2 soluble surfaces activating agent in CO2/ aqueous systems in one dimensional fluid flow process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764824A (en) * | 2015-04-10 | 2015-07-08 | 中国石油大学(华东) | Device and method for measuring concentration distribution of CO2 soluble surfactant in CO2/water system in one-dimension seepage process |
-
2015
- 2015-04-10 CN CN201520216515.5U patent/CN204514873U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764824A (en) * | 2015-04-10 | 2015-07-08 | 中国石油大学(华东) | Device and method for measuring concentration distribution of CO2 soluble surfactant in CO2/water system in one-dimension seepage process |
| CN104764824B (en) * | 2015-04-10 | 2017-05-17 | 中国石油大学(华东) | Device and method for measuring concentration distribution of CO2 soluble surfactant in CO2/water system in one-dimension seepage process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |