CN202788782U - High pressure outcrop plane model experiment system - Google Patents
High pressure outcrop plane model experiment system Download PDFInfo
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- CN202788782U CN202788782U CN 201220022428 CN201220022428U CN202788782U CN 202788782 U CN202788782 U CN 202788782U CN 201220022428 CN201220022428 CN 201220022428 CN 201220022428 U CN201220022428 U CN 201220022428U CN 202788782 U CN202788782 U CN 202788782U
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Abstract
The utility model discloses a high pressure outcrop plane model experiment system, comprising a high experiment system comprising a high pressure cabin system, an annular pressure system, an injection system, a vacuum-pumping saturation system, a high pressure cabin pressure protection system, a control acquisition system, and an outlet measuring system; wherein, a high pressure outcrop plane model is placed in the high pressure cabin system; the high pressure cabin system is respectively connected with the annular pressure system, the vacuum-pumping saturation system, the injection system, the outlet measuring system, and the control acquisition system; and the high pressure cabin pressure protection system is respectively connected with the control acquisition system and the annular pressure system. The high pressure outcrop plane model experiment system of an embodiment realizes experiment operation automation and data acquisition automation, greatly reduces experiment difficulty and operation difficulty, provides a base for large scale of a plane model experiment, and provides a powerful tool for research of low-permeability and particularly-low-permeability reservoirs.
Description
Technical field
The utility model relates to petroleum exploration and development and reservoir engineering field, relate in particular to reservoir engineering experiment field, be a kind of experiment system for high-pressure outcrop plane model concretely, the pressure field that is applicable to detect in the reservoir fluid displacement simulation of laboratory in the downforce environment truly changes and flow field change.
Background technology
For fluid seepage flow mechanism in the research oil reservoir, in the laboratory, carry out the fluid displacement experiment, rock core displacement test and areal model displacement test have become the Main Means of Study of The Underground Fluid Flow in A rule and development features.
For medium-high permeable reservoir, because model, core permeability are higher, the experiment displacement pressure is corresponding lower, so do not need elevated pressures in experiment, therefore the withstand voltage situation of model and experimental pressure is required very lowly, need not to test under the high pressure again.For low-permeability oil deposit, because porosity and permeability is lower, need to adopt higher displacement pressure in the experiment.Because not have at present preferably for the method for areal model High-Voltage Experimentation, the hyposmosis experiment mainly concentrates on core experiment or single-phase low pressure displacement test, such experiment has been brought into play important effect to studying the development of low-permeability oil reservoir rule to a certain extent.Because hyposmosis, ultra-low permeability reservoir pore structure characteristic, caused far different, especially on the two-dimensional flow feature, very large with the medium-high permeable reservoir feature difference in low permeability reservoir and the medium-high permeable reservoir development process, therefore, the demand of two-dimentional displacement test become very urgent.
At present, a lot of people have attempted carrying out the High-Voltage Experimentation of two-dimentional physical model in high-pressure chamber, but because its flow operations is complicated, experimental technique is improper, cause such experiment not promote, can't carry out batch experiment and for scientific research is provided as sets of data, can not satisfy the scientific research demand.
The utility model content
The purpose of this utility model forms a kind of experiment system for high-pressure outcrop plane model simple to operate, to form a cover large-scale areal model experimental technique easy and simple to handle, truly feasible.This system requirements is realized saturated oils, the displacement process of the large-scale rock core of appearing, and in the experiment displacement process, can measure pressure field, the saturation field of model.Realize automatic switchover in the experimentation, had the function of overpressure alarm and pressure release.
The utility model embodiment provides a kind of experiment system for high-pressure outcrop plane model, comprises high-pressure chamber system, ring pressing system, injected system, vacuumizes saturation system, high-pressure chamber pressure protective system, control acquisition system and exports measuring system;
Wherein, the described high pressure areal model of appearing is placed in the described high-pressure chamber system; Described high-pressure chamber system respectively with described ring pressing system, vacuumize saturation system, injected system, outlet measuring system and control acquisition system and be connected; Described high-pressure chamber pressure protective system is connected with described control acquisition system and ring pressing system respectively; Described ring pressing system is used to the areal model of appearing of the high pressure in the described high-pressure chamber system to provide ring to press; The described saturation system that vacuumizes is used to high pressure in the described high-pressure chamber system areal model of appearing to vacuumize and inject saturated with fluid; Described injected system provides experimental liquid for the areal model of appearing of the high pressure in the described high-pressure chamber system; Described outlet measuring system is used for carrying out the appear outlet flow measurement of areal model of described high pressure; Described control acquisition system is carried out the monitoring of pressure and resistivity for areal model that described high pressure is appeared, and utilizes monitored data that the safety of described experimental system is controlled; Described high-pressure chamber pressure protective system is used for the result according to described control acquisition system monitoring, and the ring in the described high-pressure chamber system is compressed into row adjustment.
The experiment system for high-pressure outcrop plane model of the utility model embodiment; the employing model of appearing; reach as much as possible the uniformity with actual rock core; high pressure encapsulation technology, vacuum saturation technique, rock core displacement technology and the pressure of areal model, the resistivity measurement technology of areal model are provided; realize operation automation and the data acquisition and control automatization of experiment; greatly reduce experiment difficulty and operation easier, for the areal model experimental size provides the foundation.The utility model has solved the encapsulation of hyposmosis, extra-low permeability areal model, saturated, displacement and data collection problems, for hyposmosis, ultra-low permeability reservoir research provide strong instrument.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those skilled in the art, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 2 is the structural representation of the high-pressure chamber system in the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 3 be the utility model embodiment be placed on the appear structural representation of encapsulation areal model of high pressure in the high-pressure chamber system;
Fig. 4 is the structural representation of the ring pressing system in the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 5 is the structural representation of the injected system in the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 6 is the structural representation of the control acquisition system in the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 7 is the structural representation of the high-pressure chamber pressure protective system in the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 8 is the structural representation that vacuumizes saturation system in the experiment system for high-pressure outcrop plane model of the utility model embodiment;
Fig. 9 is the structural representation of a specific embodiment of experiment system for high-pressure outcrop plane model of the present utility model.
Drawing reference numeral:
1, high-pressure chamber Cang Gai; 2, high-pressure chamber warehouse; 3, locking hoop; 4, resistivity wire high pressure connector; 5, ring is pressed the measurement line interface; 6, outlet pressure measurement line interface; 7, pressure tap pipeline interface in the middle of the model; 8, inlet pressure measurement line interface; 9, high-pressure chamber system annular space drainage pipeline interface; 10, electrode wires; 11, automatic open device; 12, injection pump; 13, the first intermediate receptacle (salt solution); 14, the second intermediate receptacle (crude oil or simulated oil); 15, the first gas compressor; 16, constant pressure valve; 17, the 3rd intermediate receptacle; 18-23, valve; 25, outlet measuring system; 26, vacuum pump; 28, model support; 29, the high pressure areal model of appearing; 31, pressure sensor group; 32, resistivity measurement electric bridge; 33, control acquisition module; 34, computer; 35, electromagnetic valve; 36, pneumatic operated valve; 37, explosion-proof valve; 38, model external tapping; 39, the sandstone rock core of appearing; 40, encapsulant; 41, electrode wires; 42-43, vacuum meter; 44, liquid container; 45-49, valve; 50, wet tank; 51, liquid booster pump; 52-56, valve; 57, the second gas compressor; 58, the 3rd gas compressor; 59, pressurization trace quantity pump.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the experiment system for high-pressure outcrop plane model of the utility model embodiment.As shown in the figure, described experiment system for high-pressure outcrop plane model comprises high-pressure chamber system 101, ring pressing system 102, injected system 103, vacuumizes saturation system 105, high-pressure chamber pressure protective system 107, control acquisition system 106 and exports measuring system 104.
Wherein, the described high pressure areal model of appearing is placed in the described high-pressure chamber system 101; Described high-pressure chamber system 101 respectively with described ring pressing system 102, vacuumize saturation system 105, injected system 103, outlet measuring system 104 and control acquisition system 106 and be connected; Described high-pressure chamber pressure protective system 107 is connected with described control acquisition system 106 and ring pressing system 102 respectively.
Described ring pressing system 102 is used to the areal model of appearing of the high pressure in the described high-pressure chamber system 101 to provide ring to press; The described saturation system 105 that vacuumizes is used to high pressure in the described high-pressure chamber system 101 areal model of appearing to vacuumize and inject saturated with fluid; Described injected system 103 provides experimental liquid for the areal model of appearing of the high pressure in the described high-pressure chamber system 101; Described outlet measuring system 104 is used for carrying out the appear outlet flow measurement of areal model of described high pressure; Described control acquisition system 106 is carried out the monitoring of pressure and resistivity for areal model that described high pressure is appeared, and utilizes monitored data that the safety of described experimental system is controlled; Described high-pressure chamber pressure protective system 107 is used for the result according to described control acquisition system 106 monitorings, and the ring in the described high-pressure chamber system 101 is compressed into row adjustment.
Fig. 2 is the structural representation of the high-pressure chamber system 101 in the experiment system for high-pressure outcrop plane model of the utility model embodiment; As shown in the figure, high-pressure chamber system 101 comprises model support 28, high-pressure chamber storehouse lid 1, high-pressure chamber warehouse 2, locking hoop 3, automatic opening device 11 and a plurality of high- pressure chamber interface 4,5,6,7,8,9.Wherein, described model support 28 is positioned at described high-pressure chamber warehouse 2, be used for to place the high pressure areal model of appearing; Described high-pressure chamber warehouse 2 is used for holding appear areal model and apply the fluid that ring is pressed for the described high pressure areal model of appearing of high pressure; Described high-pressure chamber storehouse lid 1 places described high-pressure chamber warehouse 2 tops, and utilizes the sealing ring sealing; Described locking hoop 3 is used for tightening described high-pressure chamber storehouse lid 1 and described high-pressure chamber warehouse 2, prevents that under high pressure both break away from; Described automatic open device 11 links to each other with described locking hoop 3 with described high-pressure chamber storehouse lid 1 respectively, the described high-pressure chamber storehouse lid 1 that is used to open or close described locking hoop 3, promotes or lands, rotates or the described high-pressure chamber storehouse that resets covers 1; Described a plurality of high-pressure chamber interface 4-9 is connected with the interface that described high pressure is appeared on the areal model respectively, and the described high pressure areal model of appearing is connected with the external world.
In the present embodiment, described high-pressure chamber warehouse 2 is that an internal diameter is the high pressure tank body of 800mm, is used for holding model and encircles the fluid of pressing for model applies; High-pressure chamber storehouse lid 1 places described high-pressure chamber warehouse 2 tops, lid and high-pressure chamber close contact, and utilize the sealing ring sealing; Described locking hoop 3 is two semicircle annular metal objects, is mainly used to tighten lid and warehouse, prevents that high pressure lower cover and warehouse break away from.
In the present embodiment, described a plurality of high-pressure chamber interface 4-9 are specially:
Resistivity wire high pressure connector 4, be connected with resistivity measurement electric bridge in the described control acquisition system 106 outside, be connected by electrode wires 10 and the described high voltage planar fixed resistivity measurement electrode points of model of appearing interior, be used for to guarantee the sealing of warehouse 2, and guarantee measurement circuitry inside not with fluid contact.
Ring is pressed measurement line interface 5, is connected with 106 pressure sensor group in the described control acquisition system outside, directly is communicated with the warehouse space interior, is used for pressure transmission with described high-pressure chamber warehouse 2 inner fluids;
Outlet pressure measurement line interface 6 is connected with pressure sensor group in the described control acquisition system 106 outside, is communicated with in the inner outlet of appearing on the areal model with described high pressure of warehouse, is used for transmitting the pressure of adopting liquid point;
Pressure tap pipeline interface 7 in the middle of the model, be connected with pressure sensor group in the described control acquisition system 106 outside, be connected at inner each pressure tap of appearing on the areal model with described high pressure of warehouse, be used for transmitting appear pressure distribution on the areal model plane of described high pressure;
Inlet pressure measurement line interface 8 is connected with pressure sensor group in the described control acquisition system 106 outside, is communicated with in the inner import of appearing on the areal model with described high pressure of warehouse, is used for measuring displacement pressure;
High-pressure chamber system annular space drainage pipeline interface 9, be positioned at the bottom of described high-pressure chamber warehouse 2, outside and described ring pressing system 102 is connected, inner directly be communicated with the high-pressure chamber space, when the change annular pressure, use described high-pressure chamber system annular space drainage pipeline interface 9 to carry out feed liquor or discharge opeing operates.
Fig. 3 be the utility model embodiment be placed on the appear structural representation of encapsulation areal model of high pressure in the high-pressure chamber system.Wherein (a) part is lateral view, and (b) part is sectional drawing.As shown in the figure, the high pressure encapsulation areal model of appearing is the dull and stereotyped rock core of appearing with special material encapsulation, and inner have permeability and porosity for the sandstone rock core 39 of appearing, and can be used for the simulated formation pore media; The outside is one deck special seal material 40, and this material has sealing, oil resistant water resistance and high pressure resistant character, and Main Function is exactly the effect that under extraneous and inner condition with pressure sandstone material 39 is isolated from the outside; The surface of model is packaged with model external tapping 38 in advance, and it act as sandstone material 39 is connected with injected system 103, outlet measuring system 104 and control acquisition system 106.Electrode wires 41 is connected with resistivity wire high pressure connector 4, guarantees the sealing of warehouse 2, and guarantee measurement circuitry inside not with fluid contact.
Fig. 4 is the structural representation of the ring pressing system 102 in the experiment system for high-pressure outcrop plane model of the utility model embodiment.As shown in the figure, ring pressing system 102 comprises the second gas compressor 57, wet tank 50 and liquid booster pump 51; Wherein, described the second gas compressor 57 is connected in described wet tank 50, is used for fluid with wet tank 50 and is pressed in the described high-pressure chamber system 101; Described liquid booster pump 51 connects described high-pressure chamber system 101, is used to high pressure in the described high-pressure chamber system 101 areal model of appearing to provide ring to press.
The Main Function of the ring pressing system in the present embodiment is exactly complete with experiment for 101 superchargings of high-pressure chamber system, carries out the liquid of high-pressure chamber annular space and gets rid of fast.Under the low pressure condition, provide source of the gas by the second gas compressor 57, the fluid in the wet tank 50 is clamp-oned in the high-pressure chamber system 101, after being full of fluid in the high-pressure chamber warehouse 2, using liquid booster pump 51 instead and be 101 superchargings of high-pressure chamber system; Test complete after, open relief valve, annulus fluid will enter wet tank 50, after pressure drops to normal pressure, provide source of the gas by the second gas compressor 57, and the remaining liq in the annular space is clamp-oned wet tank 50.
Fig. 5 is the structural representation of the injected system 103 in the experiment system for high-pressure outcrop plane model of the utility model embodiment.As shown in the figure, described injected system 103 comprises injection pump 12, the first intermediate receptacle 13, the second intermediate receptacle 14, the 3rd intermediate receptacle 17, the first gas compressor 15, constant pressure valve 16 and valve 18-22; The first gas compressor 15 in the present embodiment can use the second gas compressor 57 in the ring pressing system 102, also can be independent one.
In the present embodiment, described the first intermediate receptacle 13 stores salt solution, and the second intermediate receptacle 14 stores crude oil or simulated oil; Described injection pump 12 connects described the first intermediate receptacle 13 and the second intermediate receptacle 14, is used to described the first intermediate receptacle 13 and the second intermediate receptacle 14 that stable flow is provided; By described the first intermediate receptacle 13 and the second intermediate receptacle 14, the fluid that pumps is converted to Experimental Flowing Object; The displacement flow process that the first intermediate receptacle 13, the second intermediate receptacle 14 and described injection pump 12 form is tested mainly for high-pressure flow;
Described the first gas compressor 15 connects described constant pressure valve 16, is used to described the 3rd intermediate receptacle 17 that gas pressure is provided; Described the 3rd intermediate receptacle 17 is used for described gas pressure is converted to fluid pressure; By described constant pressure valve 16, constant pressure valve 16 back gases will be stabilized in certain pressure, make the experimental liquid in described the 3rd intermediate receptacle 17 reach the voltage stabilizing state.The displacement flow process that is comprised of the first gas compressor 15, constant pressure valve 16 and the 3rd intermediate receptacle 17 is mainly for low pressure voltage stabilizing displacement test.
Fig. 6 is the structural representation of the control acquisition system 106 in the experiment system for high-pressure outcrop plane model of the utility model embodiment; Described control acquisition system 106 comprises pressure sensor group 31, resistivity measurement electric bridge 32, control acquisition module 33 and computer 34;
In the present embodiment, 31 groups of described pressure sensors connect the described high pressure areal model of appearing by pressure tap pipeline interface 7 in the middle of described outlet pressure measurement line interface 6, the model and inlet pressure measurement line interface 8, are used for the appear pressure of areal model diverse location of described high pressure is measured; Described pressure sensor group 31 also presses measurement line interface 5 to be used for measuring the pressure of described high-pressure chamber warehouse 2 inner fluids by described ring; Described resistivity measurement electric bridge 32 connects the described high pressure areal model of appearing by described resistivity wire high pressure connector 4, is used for the appear resistivity of areal model diverse location of described high pressure is measured; Described control acquisition module 33 is connected in described pressure sensor group 31 and described resistivity measurement electric bridge 32, is used for force value and resistivity value are gathered and be presented at described computer 34.
Fig. 7 is the structural representation of the high-pressure chamber pressure protective system 107 in the experiment system for high-pressure outcrop plane model of the utility model embodiment.As shown in the figure, described high-pressure chamber pressure protective system 107 comprises the 3rd gas compressor 58, electromagnetic valve 35 and pneumatic operated valve 36; Wherein, described electromagnetic valve 35 connects described control acquisition system 106, when the pressure sensor 31 in the described control acquisition system 106 detects ring pressure superpressure, by the action of gas source of described the 3rd gas compressor 58 generations, described pneumatic operated valve 36 is opened, be 101 pressure releases of described high-pressure chamber system.In the present embodiment, described high-pressure chamber pressure protective system 107 also comprises explosion-proof valve 37, is used for after described pressure oversteps the extreme limit, and burst disk is damaged, is 101 pressure releases of described high-pressure chamber system.
In the present embodiment, the 3rd gas compressor 58 can be realized with the first gas compressor 15 in the injected system 103.
Fig. 8 is the structural representation that vacuumizes saturation system 105 in the experiment system for high-pressure outcrop plane model of the utility model embodiment.The described saturation system 105 that vacuumizes comprises vacuum pump 26, many vacuum meters 42,43, liquid container 44 and pressurization trace quantity pump 59; Wherein, described vacuum pump 26 vacuumizes for the areal model of appearing of the high pressure in the described high-pressure chamber system; Described vacuum meter 42,43 is used for reading vacuum; Described liquid container 44 connects described pressurization trace quantity pumps 59 and the described high pressure areal model of appearing, and described pressurization trace quantity pump 59 is used for pressurizeing saturated to the described high pressure areal model of appearing.In vacuum, read vacuum by vacuum meter, the pumpdown time reached 24 as a child, inject fluid by liquid container 44 to model, when the model permeability was very low, it was saturated to utilize pressurization trace quantity pump 59 to pressurize, until vacuum reverts to 0, this moment, model was by saturated complete.
In the present embodiment, pressurization trace quantity pump 59 can be realized with the injection pump 12 in the injected system 103.
In the present embodiment, described outlet measuring system 104 comprises the rate of discharge collector, carries out outlet flow measurement for two-phase flow is tested.Also comprise micro-flowmeter, be used for single-phase flowing experiment is carried out outlet flow measurement.
Embodiment one:
Fig. 9 is the structural representation of a specific embodiment of experiment system for high-pressure outcrop plane model of the present utility model.As shown in the figure; with the high-pressure chamber system 101 among Fig. 2-Fig. 8, ring pressing system 102, injected system 103, vacuumize saturation system 105, high-pressure chamber pressure protective system 107, control acquisition system 106 and outlet measuring system 104 and couple together, form complete pilot system.
In the present embodiment, the high pressure areal model of appearing is positioned in the high-pressure chamber, the high pressure areal model various interface of appearing is connected with high-pressure chamber interface 4-8, at confined space of the outside formation of model, after being full of fluid and pressurization in the confined space, press at the high pressure outside ring that forms of areal model of appearing, encapsulant can damaged and outwards distortion in displacement test for areal model to guarantee to appear high pressure, thereby guarantees the displacement fluid to flow through not the sandstone material in high pressure encapsulation areal model fully and can channelling.
Outlet measuring system 25 mainly is comprised of rate of discharge collector or micro-flowmeter.For the individual event flowing experiment, mainly utilize micro-flowmeter to carry out flow measurement; For two-phase flow, mainly utilize the rate of discharge collector to carry out liquid acquisition after, carry out liquid volume metering.
High-pressure chamber pressure protective system 107 mainly is to prevent superpressure in the high pressure warehouse, cause danger.The high-pressure chamber system is three class high-pressure bottles, has the advantages that volume is large, pressure is high, if superpressure is damaged, has great danger.In the system, when pressure sensor detects ring pressure superpressure, controller will join with electromagnetic valve 35, and the action of gas source by the 3rd gas compressor 58 produces is opened pneumatic operated valve 36, is 101 pressure releases of high-pressure chamber system.After automatic protective system broke down, after pressure surpassed explosion-proof valve 36 limiting pressures, burst disk was damaged, is 101 step-downs of high-pressure chamber system.
Utilize experiment system for high-pressure outcrop plane model shown in Figure 9 to carry out single-phase water high pressure level pressure displacement test, carry out according to following steps.
1, packaged high pressure is appeared areal model according to Fig. 9, be installed in the experimental system;
2, for adding ring, model presses: close all valves, open valve 53,55,56, open gas compressor 57, source of the gas is clamp-oned high-pressure chamber system 101 with the ring press liquid in the wet tank 50, gas in the high-pressure chamber system annular space is discharged, until after valve 56 positions begin to have liquid to flow out, valve-off 55,56; Open valve 54, open liquid booster pump 51, high-pressure chamber system annular space is pressurized to specified pressure.In pressurization and the experimentation, the high-pressure chamber pressure protective system will be had an effect, and guarantee that annular pressure is within the safe pressure scope;
3, vacuumize saturated: open valve 47-49, open vacuum pump 26, vacuumize more than 24 hours, after vacuum meter 42,43 all reaches vacuum, valve-off 47,49, open valve 46, the liquid in the liquid container 44 will suck in the model, and self-priming is after 2 hours, valve-off 46, open valve 45, utilize pressurization trace quantity pump 59 that the saturated fluid high pressure is pumped into model (pressure is less than annular pressure), until vacuum meter 42 pressure return to 0, saturation history stops, valve-off 45-49;
4, displacement process: with experimental water the 3rd intermediate receptacle 17 bottoms of packing into, open valve 22,23, after constant pressure valve 16 pressure are adjusted to specified pressure, start the first gas compressor 15, after compressor process constant pressure valve 16 level pressure, it is the source of consistent pressure of water extraction confession in the 3rd intermediate receptacle 17, water will be flowed through behind the model, by outlet measuring system 104 metered flows, sensor group 31, resistance bridge 32 carry out record through 34 pairs of pressure datas of computer and resistivity data after the signal of telecommunication is sent to control acquisition module 33;
5, the experiment complete after, the pressure in the emptying displacement pipeline is closed all valves. Open valve 52,55, annulus fluid will return wet tank 50 under gas pressure condition.
Take out model, experiment finishes.
The parameter that the experiment system for high-pressure outcrop plane model of the utility model embodiment can reach at present is:
1) moulded dimension of spendable maximum: 500mm * 500mm * 300mm;
2) the highest experimental pressure: 23MPa;
3) pressure-measuring-point: the 35 tunnel, precision 0.15%FS;
4) resistivity test point: can reach more than 100 tunnel.
The utility model embodiment adopts the model of appearing; reach as much as possible the uniformity with actual rock core; high pressure encapsulation technology, vacuum saturation technique, rock core displacement technology and the pressure of areal model, the resistivity measurement technology of areal model are provided; realize operation automation and the data acquisition and control automatization of experiment; greatly reduce experiment difficulty and operation easier, for the areal model experimental size provides the foundation.This utility model has solved the encapsulation of hyposmosis, extra-low permeability areal model, saturated, displacement and data collection problems, for hyposmosis, ultra-low permeability reservoir research provide strong instrument.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (11)
1. an experiment system for high-pressure outcrop plane model is characterized in that, described experimental system comprises high-pressure chamber system, ring pressing system, injected system, vacuumizes saturation system, high-pressure chamber pressure protective system, control acquisition system and exports measuring system;
Wherein, the described high pressure areal model of appearing is placed in the described high-pressure chamber system; Described high-pressure chamber system respectively with described ring pressing system, vacuumize saturation system, injected system, outlet measuring system and control acquisition system and be connected; Described high-pressure chamber pressure protective system is connected with described control acquisition system and ring pressing system respectively;
Described ring pressing system is used to the areal model of appearing of the high pressure in the described high-pressure chamber system to provide ring to press; The described saturation system that vacuumizes is used to high pressure in the described high-pressure chamber system areal model of appearing to vacuumize and inject saturated with fluid; Described injected system provides experimental liquid for the areal model of appearing of the high pressure in the described high-pressure chamber system; Described outlet measuring system is used for carrying out the appear outlet flow measurement of areal model of described high pressure; Described control acquisition system is carried out the monitoring of pressure and resistivity for areal model that described high pressure is appeared, and utilizes monitored data that the safety of described experimental system is controlled; Described high-pressure chamber pressure protective system is used for the result according to described control acquisition system monitoring, and the ring in the described high-pressure chamber system is compressed into row adjustment.
2. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, described high-pressure chamber system comprises model support, high-pressure chamber Cang Gai, high-pressure chamber warehouse, locking hoop, automatically opening device and a plurality of high-pressure chamber interface;
Wherein, described model support is positioned at described high-pressure chamber warehouse, be used for to place the high pressure areal model of appearing; Described high-pressure chamber warehouse is used for holding appear areal model and apply the fluid that ring is pressed for the described high pressure areal model of appearing of high pressure; Described high-pressure chamber Cang Gai places described high-pressure chamber warehouse top, and utilizes the sealing ring sealing; Described locking hoop is used for tightening described high-pressure chamber Cang Gai and described high-pressure chamber warehouse, prevents that under high pressure both break away from; Described automatic open device links to each other with described locking hoop with described high-pressure chamber Cang Gai respectively, is used to open or close described locking hoop, lifting or the described high-pressure chamber Cang Gai that lands, described high-pressure chamber Cang Gai rotates or reset; Described a plurality of high-pressure chamber interface is connected with the interface that described high pressure is appeared on the areal model respectively, and the described high pressure areal model of appearing is connected with the external world.
3. experiment system for high-pressure outcrop plane model as claimed in claim 2 is characterized in that, described a plurality of high-pressure chamber interfaces comprise:
Resistivity wire high pressure connector, be connected with the resistivity measurement electric bridge in the described control acquisition system, and be connected with the described high voltage planar fixed resistivity measurement electrode points of model of appearing, be used for guaranteeing the sealing of warehouse, and guarantee measurement circuitry inside not with fluid contact;
Ring is pressed the measurement line interface, is connected with pressure sensor group in the described control acquisition system, is used for transmitting the pressure of described high-pressure chamber warehouse inner fluid;
Outlet pressure measurement line interface is connected with pressure sensor group in the described control acquisition system, and is communicated with outlet that described high pressure is appeared on the areal model, is used for transmitting the pressure of adopting liquid point;
Pressure tap pipeline interface in the middle of the model is connected with pressure sensor group in the described control acquisition system, and is connected with each pressure tap that described high pressure is appeared on the areal model, is used for transmitting appear pressure distribution on the areal model plane of described high pressure;
Inlet pressure measurement line interface is connected with pressure sensor group in the described control acquisition system, and is communicated with import that described high pressure is appeared on the areal model, is used for measuring displacement pressure;
High-pressure chamber system annular space drainage pipeline interface is positioned at described high-pressure chamber warehouse bottom, and outside and described ring pressing system is connected, uses described high-pressure chamber system annular space drainage pipeline interface to carry out feed liquor when the change annular pressure or discharge opeing operates.
4. experiment system for high-pressure outcrop plane model as claimed in claim 3 is characterized in that, described control acquisition system comprises described pressure sensor group, described resistivity measurement electric bridge, control acquisition module and computer;
Wherein, described pressure sensor group connects the described high pressure areal model of appearing by pressure tap pipeline interface in the middle of the described outlet pressure measurement line interface, model and inlet pressure measurement line interface, is used for the appear pressure of areal model diverse location of described high pressure is measured; Described pressure sensor group also presses the measurement line interface to be used for measuring the pressure of described high-pressure chamber warehouse inner fluid by described ring; Described resistivity measurement electric bridge connects the described high pressure areal model of appearing by described resistivity wire high pressure connector, is used for the appear resistivity of areal model diverse location of described high pressure is measured; Described control acquisition module is connected in described pressure sensor group and described resistivity measurement electric bridge, is used for force value and resistivity value are gathered and be presented at described computer.
5. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, described injected system comprises injection pump, the first intermediate receptacle, the second intermediate receptacle, the 3rd intermediate receptacle, the first gas compressor, constant pressure valve and valve;
Wherein, described the first intermediate receptacle stores salt solution, and the second intermediate receptacle stores crude oil or simulated oil; Described injection pump connects described the first intermediate receptacle and the second intermediate receptacle, is used to described the first intermediate receptacle and the second intermediate receptacle that stable flow is provided; By described the first intermediate receptacle and the second intermediate receptacle, the fluid that pumps is converted to Experimental Flowing Object; Described the first gas compressor connects described constant pressure valve, is used to described the 3rd intermediate receptacle that gas pressure is provided; Described the 3rd intermediate receptacle is used for described gas pressure is converted to fluid pressure; By described constant pressure valve, constant pressure valve back gas will be stabilized in certain pressure, makes the experimental liquid in described the 3rd intermediate receptacle reach the voltage stabilizing state.
6. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, described ring pressing system comprises the second gas compressor, wet tank and liquid booster pump;
Wherein, described the second gas compressor is connected in described wet tank, is used for fluid with wet tank and is pressed in the described high-pressure chamber system; Described liquid booster pump connects described high-pressure chamber system, is used to high pressure in the described high-pressure chamber system areal model of appearing to provide ring to press.
7. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, the described saturation system that vacuumizes comprises vacuum pump, many vacuum meters, liquid container and pressurization trace quantity pumps;
Wherein, described vacuum pump is that high pressure in the described high-pressure chamber system areal model of appearing vacuumizes; Described vacuum meter is used for reading vacuum; Described liquid container connects described pressurization trace quantity pump and the described high pressure areal model of appearing, and described pressurization trace quantity pump is used for pressurizeing saturated to the described high pressure areal model of appearing.
8. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, described outlet measuring system comprises the rate of discharge collector, carries out outlet flow measurement for two-phase flow is tested.
9. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, described outlet measuring system comprises micro-flowmeter, is used for single-phase flowing experiment is carried out outlet flow measurement.
10. experiment system for high-pressure outcrop plane model as claimed in claim 1 is characterized in that, described high-pressure chamber pressure protective system comprises the 3rd gas compressor, electromagnetic valve and pneumatic operated valve;
Wherein, described electromagnetic valve connects described control acquisition system, when the pressure sensor in the described control acquisition system detects ring pressure superpressure, by the action of gas source of described the 3rd gas compressor generation, described pneumatic operated valve is opened, be described high-pressure chamber system decompression.
11. experiment system for high-pressure outcrop plane model as claimed in claim 10 is characterized in that, described high-pressure chamber pressure protective system also comprises explosion-proof valve, is used for after described pressure oversteps the extreme limit, and burst disk is damaged, is described high-pressure chamber system decompression.
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| CN 201220022428 CN202788782U (en) | 2012-01-17 | 2012-01-17 | High pressure outcrop plane model experiment system |
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| CN 201220022428 CN202788782U (en) | 2012-01-17 | 2012-01-17 | High pressure outcrop plane model experiment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562011A (en) * | 2012-01-17 | 2012-07-11 | 中国石油天然气股份有限公司 | Experiment system for high-pressure outcrop plane model |
| CN103247215A (en) * | 2013-04-12 | 2013-08-14 | 中国石油天然气股份有限公司 | Commingling production physical simulation system and method of permeability oil reservoir |
| CN106707363A (en) * | 2016-12-29 | 2017-05-24 | 中国石油天然气股份有限公司 | Method and system for determining three-dimensional digital outcrop geological model |
-
2012
- 2012-01-17 CN CN 201220022428 patent/CN202788782U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562011A (en) * | 2012-01-17 | 2012-07-11 | 中国石油天然气股份有限公司 | Experiment system for high-pressure outcrop plane model |
| CN102562011B (en) * | 2012-01-17 | 2014-09-24 | 中国石油天然气股份有限公司 | Experiment system for high-pressure outcrop plane model |
| CN103247215A (en) * | 2013-04-12 | 2013-08-14 | 中国石油天然气股份有限公司 | Commingling production physical simulation system and method of permeability oil reservoir |
| CN106707363A (en) * | 2016-12-29 | 2017-05-24 | 中国石油天然气股份有限公司 | Method and system for determining three-dimensional digital outcrop geological model |
| CN106707363B (en) * | 2016-12-29 | 2019-10-11 | 中国石油天然气股份有限公司 | A kind of determining 3-dimensional digital is appeared the method and system of geological model |
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