CN204945112U - Foaming agent benchmark test system - Google Patents
Foaming agent benchmark test system Download PDFInfo
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- CN204945112U CN204945112U CN201520563347.7U CN201520563347U CN204945112U CN 204945112 U CN204945112 U CN 204945112U CN 201520563347 U CN201520563347 U CN 201520563347U CN 204945112 U CN204945112 U CN 204945112U
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Abstract
The utility model provides a kind of foaming agent benchmark test system.According to foaming agent benchmark test system of the present utility model, comprise foamed system, comprise gas cylinder, piston container and fluid injection constant-flux pump, fluid injection constant-flux pump is connected with the first end of piston container; Simulated condition system, comprises wellbore hole simulator and temperature regulating device, and temperature regulating device is arranged on wellbore hole simulator; Second end of piston container is connected with the lower end of wellbore hole simulator, and gas cylinder is connected with the lower end of wellbore hole simulator.Adopt foaming agent benchmark test system of the present utility model, solve in prior art evaluate High Temperature High Pressure foaming agent foam volume, analyse the parameters such as liquid half life period, half foam life period and foam carrier ability time can not the problem of control temperature and on-load pressure in real time, make test closer to the high temperature and high pressure environment of stratum, pit shaft, thus make test figure have more directive significance.
Description
Technical field
The utility model relates to field of petroleum exploitation, especially, relates to a kind of foaming agent benchmark test system.
Background technology
At present, in order to screen high-temperature steam foam flooding foaming agent, except general performance index, also to consider the foam volume of foaming agent under high-temperature and high-pressure conditions, analysing liquid half life period, half foam life period three parameters; And screen High Temperature High Pressure water pumping gas production foaming agent, except general performance index, also to consider the foam volume of foaming agent under high-temperature and high-pressure conditions, analyse liquid half life period, half foam life period and foam carrier ability four parameters.
The common indoor evaluation method of current screening high temperature foam agent is by foaming agent at high temperature aging a period of time, then the aqueous solution to be measured that 100mL series concentration prepared at normal temperatures by foaming agent is taken out, stirrer is utilized to stir 1min, rotating speed 5000r/min, foam is poured into 1000mL graduated cylinder metered volume, as the foam volume of foaming agent, start timing simultaneously, when liquid separates out 50mL, the spent time is for analysing the liquid half life period, and the half required time that foam volume is reduced to foam volume is half foam life period.This evaluation method considers the impact of temperature, and does not consider the impact of pressure.
Screening High Temperature High Pressure water pumping gas production foaming agent, the evaluation method of test foam carrier ability is quoted " drilling fluid gas-development agent assessment process " (SY/T5350-91), this test evaluation device adopts glass apparatus to test at normal temperatures and pressures, does not consider the impact of High Temperature High Pressure.
And the general temperature of on-the-spot high-temperature steam foam flooding is more than 200 DEG C, natural gas extraction well formation temperature is more than 50 DEG C, and pressure is at more than 3MPa.The good foaming agent of a lot of conventional method test result is after loading High Temperature High Pressure, and foaming capacity and foam stability can decline, and when applying at the scene, effect is poor, does not even have effect.Therefore, need to design new test evaluation device, arranging in pairs or groups with normal temperature proving installation makes to be used as performance comparison, to screen the High Temperature High Pressure foaming agent more meeting rig-site utilization situation.
Utility model content
The utility model object is to provide a kind of foaming agent benchmark test system, with solve in prior art evaluate High Temperature High Pressure foaming agent foam volume, analyse the parameters such as liquid half life period, half foam life period and foam carrier ability time can not the problem of control temperature and on-load pressure in real time, make test closer to the high temperature and high pressure environment of stratum, pit shaft.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of foaming agent benchmark test system, comprises foamed system, and comprise gas cylinder, piston container and fluid injection constant-flux pump, fluid injection constant-flux pump is connected with the first end of piston container; Simulated condition system, comprises wellbore hole simulator and temperature regulating device, and temperature regulating device is arranged on wellbore hole simulator; Second end of piston container is connected with the lower end of wellbore hole simulator, and gas cylinder is connected with the lower end of wellbore hole simulator.
Further, foaming agent benchmark test system also comprises purging system, and it comprises tank, top valve and wash-out valve, and tank is connected with the lower end of wellbore hole simulator, wash-out valve is arranged between tank and the lower end of wellbore hole simulator, and top valve is connected with the upper end of wellbore hole simulator.
Further, foaming agent benchmark test system also comprises Weighing system, it comprises buoyant force weighing liquid bath, buoyancy accepts cylinder and electronic balance, buoyancy is accepted cylinder and is arranged in buoyant force weighing liquid bath, electronic balance and buoyancy accept that cylinder is suitable weighs, and upper end and the buoyancy of wellbore hole simulator are accepted cylinder and is connected.
Further, simulated condition system also comprises dollying head, and dollying head is axially arranged outward in simulated condition system movably along wellbore hole simulator.
Further, wellbore hole simulator is outside equipped with protective cover.
Further, wellbore hole simulator is outside equipped with rule.
Further, stirring apparatus is provided with in wellbore hole simulator.
Further, the upper end of wellbore hole simulator and buoyancy are accepted between cylinder and are provided with temperature cooling.
Further, the upper end of wellbore hole simulator and buoyancy are accepted between cylinder and are provided with one-level check valve.
Further, porous medium sand plate is provided with in wellbore hole simulator.
Feature of the present utility model and advantage are:
Adopt High Temperature High Pressure foaming agent benchmark test system of the present utility model, solve in prior art in the problem that the foam performance of assess foam agent, foam stability energy and fluid-carrying capability are connected mutually with Traditional tests evaluate index, closer to the actual conditions of on-the-spot High Temperature High Pressure, thus evaluation result is made to have more directive significance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of foaming agent benchmark test system of the present utility model.
Reference numeral in accompanying drawing is as follows: 1, gas cylinder; 2, supercharging device; 3, pressure regulator valve; 4, power gas source; 5, airline pressure table; 6, high-pressure gas flow meter; 7, the first retaining valve; 8, bottom dollying head; 9, pressure transducer; 10, fluid path tensimeter; 11, fluid injection constant-flux pump; 12, fluid injection constant-flux pump; 13, piston container; 14, piston container; 15, piston container; 16, piston container; 17, bottom temperature regulating device; 18, middle part temperature regulating device; 19, protective cover; 20, top temperature regulating device; 21, top dollying head; 22, wellbore hole simulator; 23, porous medium sand plate; 24, rule; 25, temperature cooling; 26, back pressure container; 27, back pressure follows the tracks of pump; 28, back pressure follows the tracks of pump; 29, secondary check valve; 30, back pressure container; 31, electronic balance; 32, buoyant force weighing liquid bath; 33, controller; 34, view window; 35, tank; 36, wash-out valve; 37, top valve; 38, buoyancy accepts cylinder; 39, one-level check valve; 40, the second retaining valve; 41, to weigh valve.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of foaming agent benchmark test system, comprises foamed system, and comprise gas cylinder 1, piston container and fluid injection constant-flux pump, fluid injection constant-flux pump is connected with the first end of piston container; Simulated condition system, comprises wellbore hole simulator 22 and temperature regulating device, and temperature regulating device is arranged on wellbore hole simulator 22; Second end of piston container is connected with the lower end of wellbore hole simulator 22, and gas cylinder 1 is connected with the lower end of wellbore hole simulator 22.
Particularly, foamed system comprises gas cylinder 1, and piston container comprises piston container 13, piston container 14, piston container 15 and piston container 16, and fluid injection constant-flux pump comprises fluid injection constant-flux pump 11 and fluid injection constant-flux pump 12; Each piston container can load different foaming agents, local water, simulated formation water, white oil or Simulation of Crude Oil etc.Fluid injection constant-flux pump 12 is connected with bottom wellbore hole simulator 22 by piston container 13 and/or piston container 14, and fluid injection constant-flux pump 11 is connected with bottom wellbore hole simulator 22 by piston container 15 and/or piston container 16.Foamed system also comprises supercharging device 2, power gas source 4, first retaining valve 7, second retaining valve 40 and fluid path tensimeter 10.Gas cylinder 1 can load nitrogen, carbon dioxide or air etc., and gas cylinder 1 is connected with bottom wellbore hole simulator 22 with high-pressure gas flow meter 6 by supercharging device 2, and high-pressure gas flow meter 6 is by controller 33 Real-Time Monitoring gas circuit flow; Gas circuit between supercharging device 2 and high-pressure gas flow meter 6 is also provided with airline pressure table 5, for Real-Time Monitoring airline pressure; Also be provided with pressure regulator valve 3 between airline pressure table 5 and supercharging device 2, when airline pressure table 5 monitors airline pressure change, air pressure stablized by adjustable pressure regulator valve 3; Fluid path tensimeter 10 is connected between the second retaining valve 40 and piston container, for Real-Time Monitoring fluid path pressure.
Wellbore hole simulator system comprises: wellbore hole simulator 22, the bottom dollying head 8 that can vertically move and top dollying head 21, rule 24, view window 34, protective cover 19 and temperature regulating device, temperature regulating device comprises top temperature regulating device 20, middle part temperature regulating device 18 and bottom temperature regulating device 17, bottom dollying head 8 and top dollying head 21 are positioned at wellbore hole simulator 22 outside just to view window 34 position, bottom dollying head 8 in wellbore hole simulator system, top dollying head 21 can vertically move along wellbore hole simulator 22 outer wall, being connected with controller 33 to the foam in wellbore hole simulator 22, a situation arises that real-time follow-up is observed.Rule 24, view window 34, top temperature regulating device 20, middle part temperature regulating device 18, bottom temperature regulating device 17 are all positioned on the barrel of wellbore hole simulator 22, top temperature regulating device 20, middle part temperature regulating device 18, bottom temperature regulating device 17 are all containing temperature sensor and heating plate, its effect is the temperature of the upper, middle and lower by the real-time control simulation pit shaft 22 of controller 33, ensures the temperature constant of wellbore hole simulator 22.Wellbore hole simulator 22 surrounds by protective cover 19, vacates the position of view window 34, so that observe the condition of production of foam.
In an embodiment of the present utility model, be provided with porous medium sand plate 23 in the wellbore hole simulator 22 of wellbore hole simulator system, porous medium sand plate 23 can carry out dismounting and change according to the permeability of simulation Different Strata; In a further embodiment, this porous medium sand plate 23 can also be replaced by the mechanical stirring device of band paddle, to simulate different foam pattern.In the present embodiment, the bottom of wellbore hole simulator 22 is provided with pressure transducer 9, and its effect is the internal pressure by controller 33 Real-Time Monitoring wellbore hole simulator 22, ensures the constant pressure of wellbore hole simulator 22.
According to an embodiment of the present utility model, this foaming agent benchmark test system also comprises Weighing system, it comprises buoyant force weighing liquid bath 32, buoyancy accepts cylinder 38 and electronic balance 31, buoyancy is accepted cylinder 38 and is arranged in buoyant force weighing liquid bath 32, electronic balance 31 and buoyancy accept that cylinder 38 is suitable weighs, and upper end and the buoyancy of wellbore hole simulator 22 are accepted cylinder 38 and is connected.This Weighing system also comprises: temperature cooling 25, one-level check valve 39, back pressure container 26, back pressure follow the tracks of pump 27, secondary check valve 29, back pressure container 30, back pressure tracking pump 28.Wherein, temperature cooling 25 is connected with wellbore hole simulator 22 top, and the effect of temperature cooling 25 is that the temperature reducing high temperature foam is convenient to measure foam solution quality to preference temperature; The import that first end and the buoyancy of one-level check valve 39 accept cylinder 38 is connected, second end of one-level check valve 39 is connected with wellbore hole simulator 22 by temperature cooling 25,3rd end of one-level check valve 39 is connected with one end of back pressure container 26, the other end and the back pressure of back pressure container 26 are followed the tracks of pump 27 and be connected, and back pressure container 26 and back pressure are followed the tracks of pump 27 and worked as one-level check valve 39 provides pressure simultaneously; The outlet that first end and the buoyancy of secondary check valve 29 accept cylinder 38 is connected, second end of secondary check valve 29 is connected with one end of back pressure container 30, the other end and the back pressure of back pressure container 30 are followed the tracks of pump 28 and are connected, and back pressure container 30, back pressure are followed the tracks of pump 28 and worked as secondary check valve 29 provides pressure simultaneously; The effect of one-level check valve 39 and secondary check valve 29 is simulating oil deposit pressure.Water, wet goods medium can be loaded in buoyant force weighing liquid bath 32, be convenient to carry out buoyant force weighing.The effect of the utility model Weighing system carries out constant voltage process to High Temperature High Pressure foam, measures foam solution mass-change curve in real time.
According to an embodiment of the present utility model, this foaming agent benchmark test system also comprises purging system, it comprises tank 35, top valve 37 and wash-out valve 36, tank 35 is connected with the lower end of wellbore hole simulator 22, wash-out valve 36 is arranged between the lower end of tank 35 and wellbore hole simulator 22, and top valve 37 is connected with the upper end of wellbore hole simulator 22.The effect of purging system cleans whole wellbore hole simulator 22 before on-test with after end.
High Temperature High Pressure foaming agent benchmark test system disclosed in the utility model is mainly used in evaluating foam performance, foam stability energy and fluid-carrying capability when foaming agent solution exists for local water, simulated formation water, white oil, Simulation of Crude Oil under high-temperature and high-pressure conditions.Concrete test operation step is as follows:
One, foam performance and the evaluation test of foam stability energy
1, when carrying out this evaluation test, the lower end in wellbore hole simulator 22 is provided with the mechanical stirring device of band paddle.First, close the first retaining valve 7, second retaining valve 40, valve 41 of weighing, open wash-out valve 36, top valve 37 valve, tank 35 loads cleaning solution, top valve 37 connects vacuum pump, opens vacuum pump, and wellbore hole simulator 22 sucks cleaning solution from bottom to top and cleans; Then, replacing cleaning solution is distilled water, repeats above-mentioned cleaning step, to wellbore hole simulator 22 is clean; Now, open wash-out valve 36, top valve 37, close and disconnect vacuum pump, get rid of residual liquid to tank 35.
2, after the complete wellbore hole simulator 22 of cleaning, close wash-out valve 36, open vacuum pump and be connected on top valve 37, wellbore hole simulator 22 is evacuated to negative pressure, having operated rear closedown top valve 37, closed and disconnect vacuum pump.Open the first retaining valve 7, be full of working gas by wellbore hole simulator 22, pressure is slightly larger than closing the first retaining valve 7 after atmospheric pressure.
3, according to field condition, different liquid is injected by piston container 13, piston container 14, piston container 15 and piston container 16, such as, foaming agent solution is injected in piston container 15, local water is injected in piston container 16, inject white oil in piston container 13, in piston container 14, inject Simulation of Crude Oil; Open fluid injection constant-flux pump 11, piston container 15, second retaining valve 40, in wellbore hole simulator 22, inject 100mL foaming agent solution, closedown fluid injection constant-flux pump 11, piston container 15, second retaining valve 40 after completing.Open top valve 37, connect gas injection pump and carry out work gas injection, after making wellbore hole simulator 22 reach simulated pressure, close top valve 37.
4, open top part temperature regulating device 20, middle part temperature regulating device 18, bottom temperature regulating device 17, makes temperature in wellbore hole simulator 22 rise to working temperature.Open mechanical stirring device, stir 1min, rotating speed 5000r/min, the foam volume of the foaming agent in real time record wellbore hole simulator 22, analyse liquid half life period, half foam life period three parameters.
5, after test figure record, close the heating function of top temperature regulating device 20, middle part temperature regulating device 18, bottom temperature regulating device 17, wellbore hole simulator 22 is down to room temperature, repeats above-mentioned cleaning step to clean in wellbore hole simulator 22.
Two, fluid-carrying capability evaluation test
1, when carrying out this evaluation test, the lower end in wellbore hole simulator 22 is provided with porous medium sand plate 23.First, close the first retaining valve 7, second retaining valve 40, valve 41 of weighing, open wash-out valve 36, top valve 37, tank 35 loads cleaning solution, top valve 37 connects vacuum pump, opens vacuum pump, and wellbore hole simulator 22 sucks cleaning solution from bottom to top and cleans; Then, replacing cleaning solution is distilled water, repeats above-mentioned cleaning step, to wellbore hole simulator 22 is clean; Now, open wash-out valve 36, top valve 37, close and disconnect vacuum pump, get rid of residual liquid to tank 35.
2, after the complete wellbore hole simulator 22 of cleaning, close wash-out valve 36, open vacuum pump and be connected on top valve 37, wellbore hole simulator 22 is evacuated to negative pressure, having operated rear closedown top valve 37, closed and disconnect vacuum pump.Opening the first retaining valve 7, be full of working gas by wellbore hole simulator 22, making in wellbore hole simulator 22 pressure slightly larger than closing the first retaining valve 7 after atmospheric pressure.
3, according to field condition, different liquid is injected by piston container 13, piston container 14, piston container 15 and piston container 16, such as, foaming agent solution is injected in piston container 15, local water is injected in piston container 16, inject white oil in piston container 13, in piston container 14, inject Simulation of Crude Oil; Open fluid injection constant-flux pump 11, piston container 15, piston container 16, fluid injection constant-flux pump 12, piston container 13, piston container 14, second retaining valve 40,100mL foaming agent solution, appropriate local water, white oil and Simulation of Crude Oil is injected altogether, closedown fluid injection constant-flux pump 11, piston container 15, piston container 16, fluid injection constant-flux pump 12, piston container 13, piston container 14, second retaining valve 40 after completing in wellbore hole simulator 22.Open top valve 37, connect gas injection pump and carry out work gas injection, after making wellbore hole simulator 22 reach simulated pressure, close top valve 37.
4, open top part temperature regulating device 20, middle part temperature regulating device 18, bottom temperature regulating device 17, makes temperature in wellbore hole simulator 22 rise to working temperature.Open gas cylinder 1, open valve 41 of weighing, be communicated with temperature cooling 25, open one-level check valve 39, electronic balance 31, open the first retaining valve 7 and start gas injection in wellbore hole simulator 22, porous medium sand plate 23 mixed liquor that inject wellbore hole simulator 22 in of gas bottom wellbore hole simulator 22 forms foam, now foam injects in buoyancy undertaking cylinder 38 through temperature cooling 25 and one-level check valve 39, now accept the foam solution quality in cylinder 38 by electronic balance 31 real time record buoyancy, continue after ten minutes, close the first retaining valve 7, close top temperature regulating device 20, middle part temperature regulating device 18, the heating function of bottom temperature regulating device 17, after wellbore hole simulator 22 is down to room temperature, open top part valve 37 release, open wash-out valve 36 and discharge residual liquid in wellbore hole simulator 22.
5, above-mentioned test cleaning step is repeated, washing test system.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
Adopt High Temperature High Pressure foaming agent benchmark test system of the present utility model, solve in prior art evaluate High Temperature High Pressure foaming agent foam volume, analyse the parameters such as liquid half life period, half foam life period and foam carrier ability time can not the problem of real-time loading temperature and pressure, make test closer to the high temperature and high pressure environment of stratum, pit shaft, thus make test figure have more directive significance.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (10)
1. a foaming agent benchmark test system, is characterized in that, comprises
Foamed system, comprises gas cylinder, piston container and fluid injection constant-flux pump, and described fluid injection constant-flux pump is connected with the first end of described piston container;
Simulated condition system, comprises wellbore hole simulator and temperature regulating device, and described temperature regulating device is arranged on described wellbore hole simulator; Second end of described piston container is connected with the lower end of described wellbore hole simulator, and described gas cylinder is connected with the lower end of described wellbore hole simulator.
2. foaming agent benchmark test system according to claim 1, it is characterized in that, also comprise purging system, it comprises tank, top valve and wash-out valve, described tank is connected with the lower end of described wellbore hole simulator, described wash-out valve is arranged between the lower end of described tank and described wellbore hole simulator, and described top valve is connected with the upper end of described wellbore hole simulator.
3. foaming agent benchmark test system according to claim 1 and 2, it is characterized in that, also comprise Weighing system, it comprises buoyant force weighing liquid bath, buoyancy accepts cylinder and electronic balance, described buoyancy is accepted cylinder and is arranged in described buoyant force weighing liquid bath, described electronic balance and described buoyancy accept that cylinder is suitable weighs, and upper end and the described buoyancy of described wellbore hole simulator are accepted cylinder and is connected.
4. foaming agent benchmark test system according to claim 1, is characterized in that, described simulated condition system also comprises dollying head, and described dollying head is axially arranged outward in described simulated condition system movably along described wellbore hole simulator.
5. foaming agent benchmark test system according to claim 1, it is characterized in that, described wellbore hole simulator is outside equipped with protective cover.
6. foaming agent benchmark test system according to claim 1, it is characterized in that, described wellbore hole simulator is outside equipped with rule.
7. foaming agent benchmark test system according to claim 1, is characterized in that, be provided with stirring apparatus in described wellbore hole simulator.
8. foaming agent benchmark test system according to claim 3, is characterized in that, the upper end of described wellbore hole simulator and described buoyancy are accepted between cylinder and is provided with temperature cooling.
9. foaming agent benchmark test system according to claim 3, is characterized in that, the upper end of described wellbore hole simulator and described buoyancy are accepted between cylinder and is provided with one-level check valve.
10. foaming agent benchmark test system according to claim 3, is characterized in that, is provided with porous medium sand plate in described wellbore hole simulator.
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| CN105588922A (en) * | 2016-03-04 | 2016-05-18 | 中国石油大学(华东) | Device and method for testing solubility of CO2 and stability of foam in crude oil |
| CN106121601A (en) * | 2016-06-27 | 2016-11-16 | 中国石油天然气股份有限公司 | A kind of foam flooding physical simulating device and method |
| CN106526084A (en) * | 2016-11-11 | 2017-03-22 | 中国石油天然气股份有限公司 | Foam property measuring device and method for oil extraction |
| CN107817190A (en) * | 2017-10-23 | 2018-03-20 | 中国石油大学(北京) | A kind of foam comprehensive performance evaluation method |
| CN110658094A (en) * | 2018-06-29 | 2020-01-07 | 中国石油天然气股份有限公司 | Evaluation system and evaluation method for cleaning effect of slurry cleaning liquid |
| CN110927024A (en) * | 2019-11-22 | 2020-03-27 | 中建五局土木工程有限公司 | Foam half-life period measuring equipment for shield and foam half-life period measuring method |
| CN112240893A (en) * | 2019-07-16 | 2021-01-19 | 中国石油天然气股份有限公司 | Experimental device and method for statically evaluating temperature resistance of foaming agent |
| CN113356807A (en) * | 2020-08-24 | 2021-09-07 | 中海油能源发展股份有限公司 | Nitrogen foam induced-spraying experimental device for simulating continuous oil pipe and using method thereof |
| CN113514371A (en) * | 2021-04-26 | 2021-10-19 | 东北石油大学 | Oil displacement agent seepage performance evaluation device and method |
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| CN105588922B (en) * | 2016-03-04 | 2017-06-23 | 中国石油大学(华东) | CO in a kind of crude oil2Solubility and foam stabilization system safety testing device and method |
| CN105588922A (en) * | 2016-03-04 | 2016-05-18 | 中国石油大学(华东) | Device and method for testing solubility of CO2 and stability of foam in crude oil |
| CN106121601B (en) * | 2016-06-27 | 2019-03-01 | 中国石油天然气股份有限公司 | A kind of foam flooding physical simulating device and method |
| CN106121601A (en) * | 2016-06-27 | 2016-11-16 | 中国石油天然气股份有限公司 | A kind of foam flooding physical simulating device and method |
| CN106526084A (en) * | 2016-11-11 | 2017-03-22 | 中国石油天然气股份有限公司 | Foam property measuring device and method for oil extraction |
| CN106526084B (en) * | 2016-11-11 | 2018-09-07 | 中国石油天然气股份有限公司 | A kind of recover the oil uses foaming properties measurement device and method |
| CN107817190A (en) * | 2017-10-23 | 2018-03-20 | 中国石油大学(北京) | A kind of foam comprehensive performance evaluation method |
| CN110658094A (en) * | 2018-06-29 | 2020-01-07 | 中国石油天然气股份有限公司 | Evaluation system and evaluation method for cleaning effect of slurry cleaning liquid |
| CN110658094B (en) * | 2018-06-29 | 2022-08-30 | 中国石油天然气股份有限公司 | Evaluation system and evaluation method for cleaning effect of slurry cleaning liquid |
| CN112240893A (en) * | 2019-07-16 | 2021-01-19 | 中国石油天然气股份有限公司 | Experimental device and method for statically evaluating temperature resistance of foaming agent |
| CN112240893B (en) * | 2019-07-16 | 2023-11-28 | 中国石油天然气股份有限公司 | Experimental device and method for statically evaluating temperature resistance of foaming agent |
| CN110927024A (en) * | 2019-11-22 | 2020-03-27 | 中建五局土木工程有限公司 | Foam half-life period measuring equipment for shield and foam half-life period measuring method |
| CN110927024B (en) * | 2019-11-22 | 2022-05-10 | 中建五局土木工程有限公司 | Foam half-life period measuring equipment for shield and foam half-life period measuring method |
| CN113356807A (en) * | 2020-08-24 | 2021-09-07 | 中海油能源发展股份有限公司 | Nitrogen foam induced-spraying experimental device for simulating continuous oil pipe and using method thereof |
| CN113514371A (en) * | 2021-04-26 | 2021-10-19 | 东北石油大学 | Oil displacement agent seepage performance evaluation device and method |
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