CN204514896U - A kind ofly measure the CONCENTRATION DISTRIBUTION device of CO2 soluble surfaces activating agent in CO2/ aqueous systems in three dimensional fluid flow process - Google Patents
A kind ofly measure the CONCENTRATION DISTRIBUTION device of CO2 soluble surfaces activating agent in CO2/ aqueous systems in three dimensional fluid flow process Download PDFInfo
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- CN204514896U CN204514896U CN201520216511.7U CN201520216511U CN204514896U CN 204514896 U CN204514896 U CN 204514896U CN 201520216511 U CN201520216511 U CN 201520216511U CN 204514896 U CN204514896 U CN 204514896U
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Abstract
One of the present utility model measures CO in three dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, comprises three-dimensional core model; The entrance point of three-dimensional 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 three-dimensional core model is connected with the gas source bottle and liquid holding bottle that are in parallel by check valve, three-dimensional core model end face and a side have some equally spaced sample taps, sample tap is connected with the rock core in three-dimensional core model, and each sample tap is connected with sampler separately by the pipeline of band valve.Apparatus structure of the present utility model is simple, measures accuracy rate high.
Description
Technical field
The utility model relates to CO in a kind of mensuration three dimensional fluid flow process
2soluble surfaces activating agent is at CO
2cONCENTRATION DISTRIBUTION device in/aqueous systems, 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 three dimensional fluid flow process and CO
2soluble surfaces activating agent is at CO
2the method of the CONCENTRATION DISTRIBUTION in/aqueous systems, is not determined at CO in three dimensional fluid flow process
2soluble surfaces activating agent is at CO
2the method of the CONCENTRATION DISTRIBUTION in/aqueous systems and device.
Utility model content
For solving above technical deficiency, the utility model provides a kind of simple to operate, measures CO in the high mensuration three dimensional fluid flow process of accuracy rate
2soluble surfaces activating agent is at CO
2cONCENTRATION DISTRIBUTION device in/aqueous systems.
The utility model is realized by following measures:
One of the present utility model measures CO in three 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 square three-dimensional core model;
The entrance point of described three-dimensional 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 three-dimensional core model is connected with the gas source bottle and liquid holding bottle that are in parallel by check valve, three-dimensional core model end face and a side have some equally spaced sample taps, sample tap is connected with the rock core in three-dimensional core model, and each sample tap is connected with sampler separately by the pipeline of band valve.
Preferably, 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 three-dimensional core model, liquid outlet is connected with valve, and the inside of clear glass inner bag is provided with piston.
Preferably, above-mentioned three-dimensional core model comprises square metal shell, the length and width of shell, be thickly respectively 100cm, 40cm, 40cm, square inner chamber is provided with in shell, it is silica sand between 120 ~ 140 orders that inner chamber fills up particle diameter, entrance point and the endpiece two ends of shell are respectively arranged with hickey, three-dimensional core model top surface and a side respectively have 21 sample taps, is surrounded with heating and thermal insulation cover outside three-dimensional core model.
Preferably, 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.
Described CO
2gas intermediate receptacle, surfactant intermediate receptacle, crude oil intermediate receptacle are all connected with tensimeter.
Adopt CO in said determination three 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, comprises the following steps:
Step 1, is heated to 30 DEG C ~ 90 DEG C, and maintains this temperature 10-12 hour, then set back pressure by gas source bottle to check valve, to add confined pressure to rock core by the core temperature of three-dimensional core model;
Step 2, by saturation water after the rock core vacuumizing of three-dimensional core model, then pumps into crude oil with the flow velocity of 1ml/min in rock core, until rock core by mother oil displacement to irreducible water state;
Step 3, adopts constant-flux pump with the flow velocity of 5ml/min respectively 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;
Step 4, by CO
2gas and surfactant solution inject in emulsification generator according to certain gas liquid ratio and carry out emulsification, and are injected in rock core by the stable emulsion after emulsification, after pressure stability in rock core, reach supercritical CO
2emulsion seepage state;
Step 5, time in three-dimensional core model endpiece production fluid containing emulsion, is sampled rock core diverse location by sample tap, after after sampling, in device to be sampled, emulsion vanishes, by the CO in sampler
2gas inject phased soln, in ultrapure water, detects the concentration of surfactant by high performance liquid chromatography (HPLC), can obtain surfactant at supercritical CO
2solubleness mutually.
Preferably, CO in step 4
2when mixing in emulsion generator with surfactant solution, its gas liquid ratio chooses 2:1,3:1 or 5:1.
The beneficial effects of the utility model are: device of the present utility model adopts three-dimensional 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 structural representation of the present utility model;
The structural representation of Fig. 2 the utility model sampler;
Wherein, 1 three-dimensional 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 to design three-dimensional core model 1 size and experiment parameter, CO
2carry surfactant injection model mutually, in the sampling of model different parts, sampler 9 is visual, and there is piston 9-5 centre, then with pump, water is replaced out, by aqueous phase and CO
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 distributed in three dimensions migration characteristics of surfactant in different temperatures pressure oil reservoir.
Embodiment 1: as shown in Figure 1, 2, CO in a kind of mensuration three 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 square three-dimensional core model 1; Three-dimensional core model 1 comprises square metal shell 9-4, the length and width of shell 9-4, be thickly respectively 100cm, 40cm, 40cm, square inner chamber is provided with in shell 9-4, it is silica sand between 120 ~ 140 orders that inner chamber fills up particle diameter, entrance point and the endpiece two ends of shell 9-4 are respectively arranged with hickey, three-dimensional core model 1 top surface and a side respectively have 21 sample taps 8, and 42 sample taps 8, are surrounded with heating and thermal insulation cover outside three-dimensional core model 1 altogether.
The entrance point of three-dimensional 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 three-dimensional core model 1 is connected with the gas source bottle 11 and liquid holding bottle that are in parallel by check valve 10, three-dimensional core model 1 end face and a side have some equally spaced sample taps 8, sample tap 8 is connected with the rock core in three-dimensional core model 1, and each sample tap 8 is connected with sampler 9 separately by the pipeline of band valve.
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 by the sample tap 8 of pipeline with three-dimensional core model 1, liquid outlet 9-6 is connected with valve, and the inside of clear glass inner bag 9-3 is provided with piston 9-5.Crude oil injection device comprises crude oil intermediate receptacle 2, CO2 gas injection apparatus and comprises CO
2gas intermediate receptacle 4, surfactant injection device comprises surfactant intermediate receptacle 3, crude oil intermediate receptacle 2, CO
2piston 9-5 is provided with in 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.
Claims (5)
1. one kind measures CO in three 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 square three-dimensional core model;
The entrance point of described three-dimensional 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 three-dimensional core model is connected with the gas source bottle and liquid holding bottle that are in parallel by check valve, three-dimensional core model end face and a side have some equally spaced sample taps, sample tap is connected with the rock core in three-dimensional core model, and each sample tap is connected with sampler separately by the pipeline of band valve.
2. measure CO in three 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 three-dimensional core model, liquid outlet is connected with valve, and the inside of clear glass inner bag is provided with piston.
3. measure CO in three 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 three-dimensional core model comprises square metal shell, square inner chamber is provided with in shell, it is silica sand between 120 ~ 140 orders that inner chamber fills up particle diameter, entrance point and the endpiece two ends of shell are respectively arranged with hickey, three-dimensional core model top surface and a side respectively have 21 sample taps, the length and width of shell, is thickly respectively 100cm, 40cm, 40cm, outside three-dimensional core model, be surrounded with heating and thermal insulation cover.
4. measure CO in three 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.
5. measure CO in three dimensional fluid flow process according to claim 4
2soluble surfaces activating agent is at CO
2the device of the CONCENTRATION DISTRIBUTION in/aqueous systems, is characterized in that: described CO
2gas intermediate receptacle, surfactant intermediate receptacle, crude oil intermediate receptacle are all connected with tensimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216511.7U CN204514896U (en) | 2015-04-10 | 2015-04-10 | A kind ofly measure the CONCENTRATION DISTRIBUTION device of CO2 soluble surfaces activating agent in CO2/ aqueous systems in three dimensional fluid flow process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216511.7U CN204514896U (en) | 2015-04-10 | 2015-04-10 | A kind ofly measure the CONCENTRATION DISTRIBUTION device of CO2 soluble surfaces activating agent in CO2/ aqueous systems in three dimensional fluid flow process |
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| Publication Number | Publication Date |
|---|---|
| CN204514896U true CN204514896U (en) | 2015-07-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777250A (en) * | 2015-04-10 | 2015-07-15 | 中国石油大学(华东) | Device and method for measuring concentration distribution of CO2 soluble surface active agent in CO2/water system in three-dimensional seepage process |
| CN105203431A (en) * | 2015-09-28 | 2015-12-30 | 中国石油大学(华东) | Porous medium flow measuring device and porous medium flow measuring method for nano-emulsion |
| CN114859010A (en) * | 2022-03-24 | 2022-08-05 | 中国矿业大学 | Monitoring gas reservoir rock CO injection 2 In-process CO 2 Dynamic device and method |
-
2015
- 2015-04-10 CN CN201520216511.7U patent/CN204514896U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777250A (en) * | 2015-04-10 | 2015-07-15 | 中国石油大学(华东) | Device and method for measuring concentration distribution of CO2 soluble surface active agent in CO2/water system in three-dimensional seepage process |
| CN104777250B (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 surface active agent in CO2/water system in three-dimensional seepage process |
| CN105203431A (en) * | 2015-09-28 | 2015-12-30 | 中国石油大学(华东) | Porous medium flow measuring device and porous medium flow measuring method for nano-emulsion |
| CN105203431B (en) * | 2015-09-28 | 2017-10-10 | 中国石油大学(华东) | A kind of nanoemulsions porous media flows measurement apparatus and measuring method |
| CN114859010A (en) * | 2022-03-24 | 2022-08-05 | 中国矿业大学 | Monitoring gas reservoir rock CO injection 2 In-process CO 2 Dynamic device and method |
| CN114859010B (en) * | 2022-03-24 | 2023-04-21 | 中国矿业大学 | Monitoring gas reservoir rock CO injection 2 In-process CO 2 Device and method for spreading dynamic |
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