CN109209362B - Experimental system for simulating oil reservoir conditions, microscopic model and fixing device of microscopic model - Google Patents
Experimental system for simulating oil reservoir conditions, microscopic model and fixing device of microscopic model Download PDFInfo
- Publication number
- CN109209362B CN109209362B CN201811046304.6A CN201811046304A CN109209362B CN 109209362 B CN109209362 B CN 109209362B CN 201811046304 A CN201811046304 A CN 201811046304A CN 109209362 B CN109209362 B CN 109209362B
- Authority
- CN
- China
- Prior art keywords
- model
- microscopic
- pipeline
- flooding
- vent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Sampling And Sample Adjustment (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to an experimental system for simulating oil reservoir conditions, a microscopic model and a fixing device thereof, wherein the microscopic model fixing device comprises a fixing seat and the microscopic model arranged on the fixing seat, the microscopic model is provided with an flooding agent inlet for flooding agent to flow in, the microscopic model is also provided with a vent for residual liquid at the flooding agent inlet to flow out, and the flooding agent inlet is communicated with the vent. The micro model is provided with the vent communicated with the flooding agent inlet for residual liquid to flow out, and redundant fluid in the flooding agent inlet and the diversion trench can be discharged through the vent after the previous step is finished, so that the flooding agent in the next step is prevented from being polluted, the precision of the flooding agent injection amount of the experimental scheme is improved, and the accuracy of the oil displacement image analysis is improved; in addition, the venting circuit can also serve to equalize pressure differences.
Description
Technical Field
The invention relates to an experimental system for simulating oil reservoir conditions, a microscopic model and a fixing device thereof.
Background
By applying the microscopic model microscopic oil displacement experimental method, the interface phenomenon and interaction mechanism of oil, water and chemical agent seepage in a pore network can be observed, so that microscopic residual oil characteristic analysis and tertiary oil recovery oil displacement effect evaluation can be performed.
Because the pressure resistance of the microscopic model is poor, most of the formation crude oil is difficult to flow at normal temperature, the microscopic oil displacement experiment is usually carried out by using simulated oil at normal temperature and normal pressure in the past, and the research result of the oil displacement experiment of the simulated oil at normal temperature lacks the oil reservoir representativeness; in addition, the device needs to be manually disassembled in the oil displacement experiment, residual liquids such as excessive crude oil, redundant chemical agents and injected water are removed, the next step of experiment is carried out after the device is assembled, the experiment mode not only cannot be used for continuous experiment, the experiment efficiency is reduced, but also the accuracy of the experiment result is influenced. The current microscopic model can be subjected to a microscopic oil displacement experiment under high temperature and high pressure after being improved, for example, a thickened oil two-dimensional microscopic visual displacement simulation experiment system and a use method thereof disclosed by Chinese patents with the publication number of CN104265255B and publication date of 2017.01.25 are disclosed. Because only one inlet or outlet is arranged on the micro model, dead volumes and residual liquid in the flooding agent inlet and the diversion trench in the micro model cannot be emptied, the injection amount of the flooding agent is difficult to control, and chemical flooding and water flooding alternate flooding cannot be really simulated under the oil reservoir condition.
Disclosure of Invention
The invention aims to provide an experimental system for simulating oil reservoir conditions, which aims to solve the problems that the injection quantity of a flooding agent is difficult to control and chemical flooding and water flooding alternate flooding cannot be really simulated in the prior art; the invention also aims to provide a micro model fixing device and a micro model for the experimental system for simulating the oil reservoir conditions.
In order to achieve the purpose, the technical scheme of the microscopic model fixing device is as follows: the microcosmic model fixing device comprises a fixing seat and a microcosmic model arranged on the fixing seat, wherein an agent driving inlet for flowing in of an agent to be driven is formed in the microcosmic model, a vent for flowing out of residual liquid at the agent driving inlet is further formed in the microcosmic model, and the agent driving inlet is communicated with the vent.
The oil inlet of the micro model is arranged away from the flooding agent inlet. The oil inlet does not use a flooding agent inlet, so that crude oil entering from the oil inlet does not pollute the flooding agent.
The oil inlet and the vent of the microscopic model are the same opening. The openings in the microscopic model are reduced while ensuring that the results of the verification are accurate.
And a diversion trench is arranged between the seepage region of the micro model and the flooding agent inlet, and the diversion trench is used for being communicated with the vent hole, is far away from the flooding agent inlet and is close to the seepage region. And the influence of residual liquid in the diversion trench on an experimental result is reduced.
The chemical flooding device is characterized in that a chemical flooding clamping head is connected to the chemical flooding inlet, and a water flooding port for water flooding and a chemical flooding port for chemical flooding are arranged on the chemical flooding clamping head. Two inlets are arranged on one clamping head, so that the experimental oil and the flooding agent have respective channels and approach to a real working condition.
The emptying port is provided with an emptying clamping head, the emptying clamping head comprises a clamping head body and a pressing support piece, and a pipeline for communicating the clamping head body and pressing the support piece is arranged between the clamping head body and the pressing support piece. The clamping head and the pressing support piece can be adjusted in position according to the shape of the model.
The pipeline is helical. Avoid the pipeline to be difficult to arrange when longer.
The micro-model fixing device also comprises an autoclave for accommodating the fixing seat.
And a light source for irradiating the microscopic model so that the microscopic camera equipment can monitor the microscopic model is arranged in the autoclave. The light source is arranged in the autoclave, so that the shooting effect is better.
The technical scheme of the microscopic model of the invention is as follows: the device comprises a micro model, wherein the micro model is provided with an flooding agent inlet for flooding agent to flow in and a vent for discharging residual liquid at the flooding agent inlet, and the flooding agent inlet is communicated with the vent.
The oil inlet of the micro model is arranged away from the flooding agent inlet.
The oil inlet and the vent of the microscopic model are the same opening.
And a diversion trench is arranged between the seepage region of the micro model and the flooding agent inlet, and the diversion trench is used for being communicated with the vent hole, is far away from the flooding agent inlet and is close to the seepage region.
The technical scheme of the experimental system for simulating the oil reservoir condition is as follows: the experimental system for simulating the oil reservoir conditions comprises a microscopic model fixing device and a pipeline connected with the microscopic model fixing device, the microscopic model fixing device comprises a fixing seat and a microscopic model arranged on the fixing seat, an agent driving inlet for driving agent to flow in is arranged on the microscopic model, a vent for residual liquid at the agent driving inlet to flow out is also arranged on the microscopic model, and the agent driving inlet is communicated with the vent.
The oil inlet of the micro model is arranged away from the flooding agent inlet.
The oil inlet and the vent of the microscopic model are the same opening.
And a diversion trench is arranged between the seepage region of the micro model and the flooding agent inlet, and the diversion trench is used for being communicated with the vent hole, is far away from the flooding agent inlet and is close to the seepage region.
It is connected with and drives agent holding head to drive the agent entrance, it drives the mouth with the chemistry that is used for chemical flooding to drive the water that is equipped with on the agent holding head and drives the mouth, the water drives the mouth and is connected with and is used for carrying out the water drive pipeline that water was driven to the micro model, the chemistry drives the mouth and is connected with and is used for carrying out the chemistry that chemical was driven to the micro model and drives the pipeline.
The number of the chemical flooding pipelines is at least two.
The utility model discloses a crude oil injection device, including atmospheric pressure, unloading department are equipped with unloading holding head, unloading holding head includes the holding head body and compresses tightly support piece, the holding head body with compress tightly the pipeline that is equipped with intercommunication holding head body and compresses tightly support piece between the support piece, it is connected with the blow-off pipeline to compress tightly support piece, be connected with the oil circuit that is used for pouring into crude oil on the blow-off pipeline.
The pipeline is helical.
The micro-model fixing device also comprises an autoclave for accommodating the fixing seat.
And a light source for irradiating the microscopic model so that the microscopic camera equipment can monitor the microscopic model is arranged in the autoclave.
The invention has the beneficial effects that: the micro model is provided with the vent communicated with the flooding agent inlet for residual liquid to flow out, and redundant fluid in the flooding agent inlet and the diversion trench can be discharged through the vent after the previous step is finished, so that the flooding agent in the next step is prevented from being polluted, the precision of the flooding agent injection amount of the experimental scheme is improved, and the accuracy of the oil displacement image analysis is improved; in addition, the venting circuit can also serve to equalize pressure differences.
Drawings
FIG. 1 is a schematic diagram of an embodiment 1 of an experimental system for simulating reservoir conditions according to the present invention;
FIG. 2 is a schematic view of a microscopic model fixing device according to an embodiment 1 of the experimental system for simulating reservoir conditions of the present invention;
FIG. 3 is a schematic view of the microscopic model of FIG. 2;
FIG. 4 is a schematic view of the expellant gripping head of FIG. 2 at A;
FIG. 5 is a schematic structural view of the evacuation clamping head shown at B in FIG. 2;
FIG. 6 is a schematic structural view of the gripping head at the production end of FIG. 2 at C.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In embodiment 1 of the experimental system for simulating the oil reservoir conditions of the present invention, as shown in fig. 1 to 6, the experimental system for simulating the oil reservoir conditions includes a thermostat 22, a crude oil container 1501 and an expelling agent container are disposed in the thermostat 22, both the crude oil container 1501 and the expelling agent container are connected to a displacement pump 18, and both a pipeline outlet of the crude oil container 1501 and a pipeline outlet of the expelling agent container are communicated with the micro model 4 in the autoclave 2. As shown in fig. 1, the repellent container includes a water container 1401 and chemical containers, in this embodiment, the kinds of chemical containers are three, including a first chemical container 1101, a second chemical container 1201, and a third chemical container 1301, and in other embodiments, the number of the kinds of chemical containers may be increased or decreased according to experimental needs. A water valve for controlling water drive is arranged between the water container 1401 and the micro model 4, a chemical valve for controlling chemical drive is arranged between the chemical container and the micro model 4, and an oil valve for controlling crude oil to enter is arranged between the crude oil container 1501 and the micro model 4; the vent loop 9 is arranged on the pipeline of the crude oil container 1501, and redundant fluid can be discharged through the vent loop 9 after the former step is completed, so that the flooding agent in the latter step is prevented from being polluted, the precision of the flooding agent injection amount of the experimental scheme is improved, and the accuracy of the analysis of the flooding image is improved.
In the embodiment, a displacement pump 18 is opened to drain a water path and then drain an oil path, a microscopic model 4 is installed in an autoclave 2, the microscopic model 4 is placed in the autoclave 2, distilled water filled in a distilled water container 23 is filled around the microscopic model 4, the temperature of a constant temperature box 22 and the temperature of the autoclave 2 are set according to experimental requirements and heated, a servo and a pressure sensor 19 are adopted to track pressure change, so that the microscopic model 4 is in a certain confining pressure to simulate the pressure environment of an oil reservoir and solve the pressure resistance problem of the model, and meanwhile, a tracking pump 17 is controlled to pressurize the autoclave 2 and a back pressure valve 5 to adjust the pressure change at any time. A stereoscopic microscope 20 for observing the microscopic model 4 is arranged above the autoclave 2, the stereoscopic microscope 20 is connected with a displacement image analyzer 21, and the seepage characteristics in the oil displacement experiment of the microscopic model 4 are collected and monitored in real time through a glass window 1 at the upper end of the autoclave 2. The autoclave 2 is internally provided with a heating and heat-insulating device 8 which can heat the autoclave to simulate the formation temperature, and a thermostat and a part of pipelines which cannot be heated and insulated outside the autoclave are provided with the heating and heat-insulating device.
In the previous microcosmic oil displacement experiment under the condition of high-temperature and high-pressure oil reservoir, the inlet end of the microcosmic model is only provided with one inlet, the outlet end of the microcosmic model is only provided with one outlet, the line for connecting the ports is simple, and the dead volume and residual liquid in the microcosmic model cannot be emptied, so that the injection amount of different flooding agents is difficult to accurately control. As shown in FIGS. 2 and 3, in this embodiment, the inlet end of the microscopic model 4 of the experimental system is changed into two openings, i.e., a flooding agent inlet 42 and a vent 43, the flooding agent inlet 42 is connected with a plurality of flooding agent pipelines, each flooding agent pipeline is controlled by a respective valve, fluid mutual interference and pollution can be avoided, the vent is connected with a vent loop, the vent is used for emptying residual liquid and has the function of balancing pressure difference and is controlled by a respective valve, wherein the saturated oil inlet and the vent 43 share one opening, so that the vent 43 has the functions of injecting saturated oil and venting simultaneously; in this embodiment, a diversion trench 45 is disposed between the flooding agent inlet 42 and the percolation region 41, and the position where the vent 43 is communicated with the diversion trench 45 is close to the percolation region 41, so as to avoid the influence of residual liquid in the flooding agent inlet and the diversion trench on the experiment. Between the flooding agent inlet 42 and outlet 44 of the micromodel 4 is a micromodel seepage zone 41. As shown in fig. 2, a fixing seat 3 is arranged in the autoclave 2, the micro model 4 is mounted on the fixing seat 3 through a clamping head, the fixing seat 3 is provided with a light source 7 and a heating and heat-preserving device 8 for heating and preserving heat of the autoclave 2 below the micro model 4, and the upper end of the autoclave 2 is provided with a transparent glass window 1 so that the body type microscope can monitor the seepage characteristics in the micro model 4 in real time under the irradiation of the light source 7. The inlet end of the high-pressure autoclave 2 is provided with an area A and an area B, the area A is provided with an agent-driving clamping head, and the agent-driving clamping head is communicated with a first chemical-driving pipeline 11, a second chemical-driving pipeline 12, a third chemical-driving pipeline 13 and a water-driving pipeline 14 outside the high-pressure autoclave 2; and an emptying clamping head is arranged in the area B, and the emptying clamping head is communicated with an oil way 15 and an emptying way 9 outside the high-pressure kettle 2. The outlet end of the high-pressure kettle 2 is provided with a C area, a clamping head of a production end is arranged at the C area, the clamping head of the production end is communicated with an outlet pipeline 10, a back-pressure valve 5 is arranged on the outlet pipeline 10, and a manual pump 6 for manually adjusting the back-pressure valve 5 is connected to the back-pressure valve 5; the outside of the fixed seat 3 is also communicated with a pressure tracking pipeline 16, the other end of the pressure tracking pipeline is connected with a tracking pump 17, and the tracking pump can pressurize the autoclave and the back pressure valve to adjust pressure change in real time, so that the inside and outside pressure of the microscopic model is consistent.
In this embodiment, as shown in fig. 4, the agent-expelling clamping head in the area a in fig. 2 includes a first clamping head 102 with a first clamping opening 105 and a pressing cap 110, the upper bed body of the first clamping head 102 has a first locking bolt 101 with a first pressing pad 103, the lower bed body has a first through hole 104 with a step, the agent-expelling clamping head has two paths, one path is communicated with the first through hole 104 in the lower bed body, and is connected to the external water-expelling pipeline 14 through the first clamping opening 105 and the through hole of the fixing base 3, the other path is outside the first through hole 104 of the lower bed body, and is connected to the through hole of the fixing base 3 through the pressing cap 110 and the pressing ring 111 through a first pipeline 109, and is connected to the external first chemical-expelling pipeline 11, and of course, several chemical-expelling pipelines may be additionally arranged at the through hole of the autoclave base. A first sealing ring 106 is arranged at the first bayonet 105 of the first chuck 102, a water drive valve 107 is arranged on a pipeline between the water drive pipeline 14 and the first bayonet 105, and a chemical drive valve 108 is arranged on a pipeline between the first chemical drive pipeline 11 and the pressure ring 111. When the device is installed, the seepage port of the micro model 4 faces downwards, the driving agent inlet 42 of the micro model 4 is aligned with the first through hole 104 of the lower bed body of the first chuck 102, and then the first locking bolt 101 is screwed. The flooding agent clamping head is matched with the emptying clamping head, so that the injection amount of various flooding agents can be accurately controlled, redundant fluid is discharged, a channel is cleaned, the analysis accuracy of a flooding image is improved, and the design of researchers on various experimental schemes for simulating the chemical flooding of an oil reservoir can be effectively completed.
In this embodiment, as shown in fig. 5, the emptying clamping head in the area B in fig. 2 includes a second chuck 202 and a pressing support member 206 with a second bayonet 207, an upper bed body of the second chuck 202 has a second locking bolt 201 with a second pressing pad 203, a lower bed body has a second through hole 204 with a step, which is connected to a second pipeline 205 outside the bed body through an internal channel of the bed body, the second pipeline 205 is connected to the pressing support member 206, and is connected to an external oil path 15 and an emptying path 9 through the internal channel of the pressing support member 206 and the second bayonet 207 of the pressing support member 206 and a through hole of the fixing seat 3, an oil valve 209 is disposed on the oil path 15, and an emptying valve 210 is disposed on the emptying path 9; a second sealing ring 208 is arranged on the second bayonet 207 of the pressing support 206 to ensure the sealing performance. During installation, the seepage port of the microscopic model 4 faces downwards, the vent 43 of the microscopic model 4 is aligned to the second through hole 24, then the second locking bolt 201 is screwed, the second chuck is connected with the pressing support piece through a second pipeline which is spirally wound and has elasticity, so that the microscopic model can be adjusted at a proper position during installation of the microscopic model, the second bayonet of the pressing support piece is inserted into the through hole of the autoclave base, the through hole is connected with an oil way and a vent way, various residual liquids, balanced displacement pressure and cleaning injection ports and passages generated in the water drive and various chemical drive processes can be evacuated through the vent way, and the oil inlet operation or the residual liquid evacuation operation is controlled by respective valves.
In this embodiment, as shown in fig. 6, the extraction end clamping head in the area C in fig. 2 includes a third clamping head 302, an upper bed body of the third clamping head 302 has a third locking bolt 301 with a third pressing pad 303, a lower bed body has a third through hole 304 with a step, the third through hole is communicated with a channel in the lower bed body, the third through hole is connected with the external outlet pipeline 10 through a third bayonet 305 of the third clamping head 302 and a through hole on the fixing base 3, and a third sealing ring 306 is disposed on the third bayonet 305 to ensure sealing performance. When the device is installed, the seepage port of the micro model 4 faces downwards, the outlet 44 of the micro model 4 is aligned with the third through hole 304 of the lower bed body of the third chuck 302, and then the third locking bolt 301 is screwed.
During the experiment of the experimental system for simulating the oil reservoir conditions, 1) an oil valve and a valve at a production end are opened, crude oil is injected into a micro model 4 from an emptying port 43 through an oil way 15, then water drive is carried out, at the moment, a water valve is opened, the oil valve is closed, the injected water enters a first through hole 104 from a first bayonet 105 on a driving agent clamping head, and then enters the micro model 4 through the first through hole 104 until the water drive is finished; 2) then, a first chemical agent is driven, the water driving valve and the extraction end valve are closed, a first chemical agent driving pipeline valve and an air release valve are opened, the first chemical agent enters the first through hole 104 from the through hole of the fixing seat 3 and the first pipeline 109, the first chemical agent is seen to come out from the driving agent inlet 42 on the microscopic model 4 through the glass window 1, after redundant water and air are driven out from the air release 43 through the diversion trench 45, the air release valve is closed, the extraction end valve is opened, the first chemical agent enters the microscopic model, and after the injection amount is reached, the first chemical agent valve is closed. The procedure is the same as step 2) when other chemical flooding or subsequent water flooding is performed. The experimental system for simulating the oil reservoir conditions can prevent water and chemical agents from being polluted during experiments, accurately control the injection amount according to the experimental scheme, discharge redundant fluid and improve the analysis accuracy of oil displacement images.
The above embodiment 1 is an experimental system for simulating reservoir conditions according to the present invention, and is the best embodiment, and in other embodiments, the corresponding structure may be adjusted or simplified as needed.
The specific embodiment 2 of the experimental system for simulating the oil reservoir conditions comprises a microscopic model fixing device and a pipeline connected with the microscopic model fixing device, wherein the microscopic model fixing device comprises a fixing seat and a microscopic model arranged on the fixing seat, an oil repellent inlet for flowing in an oil repellent is formed in the microscopic model, a vent hole for flowing out of residual liquid at the oil repellent inlet is formed in the microscopic model, and the oil repellent inlet is communicated with the vent hole. The flooding agent inlet can be communicated with flooding agents required by various experiments, and one or more than two flooding agent inlets can be arranged according to the requirement; the vent may be located intermediate the flooding agent inlet and the infiltration zone inlet, or may be located adjacent the infiltration zone inlet on the micromodel.
In the embodiment 3 of the experimental system for simulating the oil reservoir conditions, as a further optimization of the embodiment 2, in order to avoid mutual influence of the crude oil and the flooding agent, in the embodiment, the oil inlet of the micro model is arranged away from the flooding agent inlet. In other embodiments, the oil inlet and the flooding agent inlet can be the same opening.
In the embodiment 4 of the experimental system for simulating the oil reservoir conditions, as a further optimization of the embodiment 3, on the basis that the crude oil and the flooding agent cannot influence each other, in order to reduce the opening on the microscopic model, in the embodiment, the oil inlet and the vent of the microscopic model are the same opening. In other embodiments, the oil inlet and the vent may be provided separately.
As a further optimization of any one of the specific embodiments 2-4, in order to reduce the influence of the residual liquid at the flooding agent inlet on the experiment, in this embodiment, a diversion trench is arranged between the vadose zone of the micro model and the flooding agent inlet, and the diversion trench is used for being communicated with the vent and is far away from the flooding agent inlet and close to the vadose zone. In other embodiments, the position where the vent is communicated with the diversion trench can also be arranged at the middle position of the diversion trench,
in an embodiment 6 of the experimental system for simulating the oil reservoir conditions, as a further optimization of any one of the specific embodiments 2 to 4, in order to perform different types of experiments on the experimental system, in this embodiment, the flooding agent inlet is connected to a flooding agent clamping head, the flooding agent clamping head is provided with a water flooding port for water flooding and a chemical flooding port for chemical flooding, the water flooding port is connected to a water flooding pipeline for water flooding of the microscopic model, and the chemical flooding port is connected to a chemical flooding pipeline for chemical flooding of the microscopic model. In other embodiments, only a water drive line or a chemical drive line may be provided on the gripper head.
As a further optimization of the specific example 6, in order to observe the influence of different chemical flooding agents on the micro model, in the specific example 7 of the experimental system for simulating the reservoir conditions, the number of the chemical flooding pipelines is at least two. In other embodiments, one chemical flooding line may be provided.
In the embodiment 8 of the experimental system for simulating the oil reservoir conditions, as a further optimization of any one of the embodiments 2 to 4, in order to enable the experimental system to perform different types of experiments, in the embodiment, the vent is provided with a vent clamping head, the vent clamping head comprises a clamping head body and a pressing support piece, a pipeline for communicating the clamping head body and the pressing support piece is arranged between the clamping head body and the pressing support piece, the pressing support piece is connected with a vent pipeline, and the vent pipeline is connected with an oil way for injecting crude oil. Place oil circuit and vent line together, vent line only supplies crude oil to get into once, and subsequent agent that drives gets into from driving the agent entry and can not again through vent line, only raffinate etc. flow from vent line, avoid influencing other agent that drives because crude oil is difficult to get rid of. In other embodiments, the oil passage may be provided at the flooding agent inlet.
The embodiment 9 of the experimental system for simulating the oil reservoir conditions of the invention is used for further optimizing the embodiment 8, and in order to avoid the problem that the pipeline is not easy to arrange when being long, in the embodiment, the pipeline is spiral. In other embodiments, the lines may be designed in a straight line.
As a further optimization of any one of the specific embodiments 2-4, in the specific embodiment 10 of the experimental system for simulating the oil reservoir conditions, in order to enable the fixing seat of the experimental system to resist high temperature and high pressure during the experiment, in this embodiment, the micro model fixing device further includes an autoclave for accommodating the fixing seat. In other embodiments, the fixing seat is a general temperature-resistant and pressure-resistant fixing seat, and a microscopic oil displacement experiment under normal temperature and pressure is performed.
As a further optimization of embodiment 10, in this embodiment 11 of the experimental system for simulating the oil reservoir conditions, in order to reduce the use of the light source bracket, in this embodiment, a light source for irradiating the microscopic model so that the microscopic imaging device can monitor the microscopic model is provided in the autoclave. In other embodiments, the light source may be disposed below the exterior of the autoclave.
In the embodiment of the present invention, the structure of the micro model fixing device is the same as that of any one of the micro model fixing devices described in embodiments 1 to 11 of the experiment system for simulating the oil reservoir conditions, and details thereof are omitted.
In the embodiment of the present invention, the structure of the micro model is the same as that of any one of the micro models described in embodiments 1 to 5 of the experiment system for simulating the oil reservoir conditions, and details thereof are omitted.
Claims (9)
1. Microcosmic model fixing device, including fixing base and the microcosmic model of setting on the fixing base, be equipped with on the microcosmic model and supply to drive the agent entry of driving that the agent flowed in, its characterized in that: the microscopic model fixing device also comprises an autoclave for accommodating the fixing seat, a light source and a heating and heat-preserving device are arranged on the fixing seat below the microscopic model, the light source is used for irradiating the microscopic model so that the microscopic camera equipment can monitor the microscopic model, the periphery of the microscopic model is filled with distilled water filled from a distilled water container, the heating and heat-preserving device is positioned in the autoclave and can heat the autoclave to simulate the formation temperature, a back pressure valve is arranged on an outlet pipeline outside the autoclave and connected with a manual pump for manually adjusting the back pressure valve, a pressure tracking pipeline is communicated with the outside of the fixing seat, the other end of the pressure tracking pipeline is connected with a tracking pump, the tracking pump can pressurize the autoclave and the back pressure valve to adjust the pressure change in real time, a servo and a pressure sensor are adopted to track the pressure change so that the microscopic model is positioned in confining pressure to simulate the pressure environment of an oil reservoir, and ensuring the internal and external pressures of the microscopic model to be consistent; the micro-model is further provided with a vent for residual liquid at the driving agent inlet to flow out, the oil inlet of the micro-model is arranged away from the driving agent inlet, the oil inlet and the vent of the micro-model are the same opening, the driving agent inlet is communicated with the vent, a diversion trench is arranged between the seepage region of the micro-model and the driving agent inlet, and the diversion trench is used for being communicated with the vent to be far away from the driving agent inlet and be close to the seepage region.
2. A microscopic model fixing apparatus according to claim 1, wherein: the chemical flooding device is characterized in that a chemical flooding clamping head is connected to the chemical flooding inlet, and a water flooding port for water flooding and a chemical flooding port for chemical flooding are arranged on the chemical flooding clamping head.
3. A microscopic model fixing apparatus according to claim 1, wherein: the emptying port is provided with an emptying clamping head, the emptying clamping head comprises a clamping head body and a pressing support piece, and a pipeline for communicating the clamping head body and pressing the support piece is arranged between the clamping head body and the pressing support piece.
4. A microscopic model fixing apparatus according to claim 3, wherein: the pipeline is helical.
5. The experimental system of simulation oil reservoir condition, include microcosmic model fixing device and the pipeline of being connected with microcosmic model fixing device, its characterized in that: the microscopic model fixing device comprises a fixing seat and a microscopic model arranged on the fixing seat, the microscopic model fixing device also comprises an autoclave used for accommodating the fixing seat, a light source and a heating and heat-preserving device are arranged on the fixing seat below the microscopic model, the light source is used for irradiating the microscopic model so that microscopic camera equipment can monitor the microscopic model, distilled water filled in a distilled water container is filled around the microscopic model, the heating and heat-preserving device is positioned in the autoclave and can heat the autoclave to simulate the formation temperature, a back pressure valve is arranged on an outlet pipeline outside the autoclave, a manual pump for manually adjusting the back pressure valve is connected onto the back pressure valve, a pressure tracking pipeline is communicated with the outside of the fixing seat, the other end of the pressure tracking pipeline is connected with a tracking pump, the tracking pump can pressurize the autoclave and the back pressure valve to adjust the pressure change in real time, and a servo and a pressure sensor are adopted to track the pressure change, the micro model is in confining pressure to simulate the pressure environment of the oil reservoir and ensure the consistent pressure inside and outside the micro model; the micro model is provided with an expelling agent inlet for the inflow of an expelling agent, the micro model is also provided with a vent for the outflow of residual liquid at the expelling agent inlet, an oil inlet of the micro model is arranged away from the expelling agent inlet, the oil inlet and the vent of the micro model are the same opening, and the expelling agent inlet is communicated with the vent; and a diversion trench is arranged between the seepage region of the micro model and the flooding agent inlet, and the diversion trench is used for being communicated with the vent hole, is far away from the flooding agent inlet and is close to the seepage region.
6. The experimental system for simulating reservoir conditions of claim 5, wherein: it is connected with and drives agent holding head to drive the agent entrance, it drives the mouth with the chemistry that is used for chemical flooding to drive the water that is equipped with on the agent holding head and drives the mouth, the water drives the mouth and is connected with and is used for carrying out the water drive pipeline that water was driven to the micro model, the chemistry drives the mouth and is connected with and is used for carrying out the chemistry that chemical was driven to the micro model and drives the pipeline.
7. The experimental system for simulating reservoir conditions of claim 6, wherein: the number of the chemical flooding pipelines is at least two.
8. The experimental system for simulating reservoir conditions of claim 5, wherein: the utility model discloses a crude oil injection device, including atmospheric pressure, unloading department are equipped with unloading holding head, unloading holding head includes the holding head body and compresses tightly support piece, the holding head body with compress tightly the pipeline that is equipped with intercommunication holding head body and compresses tightly support piece between the support piece, it is connected with the blow-off pipeline to compress tightly support piece, be connected with the oil circuit that is used for pouring into crude oil on the blow-off pipeline.
9. The experimental system for simulating reservoir conditions of claim 8, wherein: the pipeline is helical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046304.6A CN109209362B (en) | 2018-09-07 | 2018-09-07 | Experimental system for simulating oil reservoir conditions, microscopic model and fixing device of microscopic model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046304.6A CN109209362B (en) | 2018-09-07 | 2018-09-07 | Experimental system for simulating oil reservoir conditions, microscopic model and fixing device of microscopic model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209362A CN109209362A (en) | 2019-01-15 |
| CN109209362B true CN109209362B (en) | 2022-02-11 |
Family
ID=64987802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811046304.6A Active CN109209362B (en) | 2018-09-07 | 2018-09-07 | Experimental system for simulating oil reservoir conditions, microscopic model and fixing device of microscopic model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209362B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943189B (en) * | 2021-05-06 | 2023-01-03 | 海安县石油科研仪器有限公司 | High-sealing-performance water-flooding simulation system equipment for fractured reservoirs |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202202850U (en) * | 2011-08-06 | 2012-04-25 | 中国石油化工股份有限公司 | Multi-medium oil displacement physical simulation experiment device |
| CN103161452A (en) * | 2013-03-13 | 2013-06-19 | 中国石油天然气股份有限公司 | Two-dimension microcosmic visualization experiment simulating device and use method thereof |
| CN105092446A (en) * | 2014-05-08 | 2015-11-25 | 中国海洋石油总公司 | Two-dimensional visual percolation experiment method capable of simulating in-layer heterogeneity |
| CN105626019A (en) * | 2014-11-07 | 2016-06-01 | 中国石油化工股份有限公司 | High-temperature high-pressure glass micro model gripper used for heavy oil thermal recovery |
| CN106351622A (en) * | 2016-11-03 | 2017-01-25 | 西南石油大学 | High-temperature microscopic visual physical simulation clamping model and use method thereof |
| CN106596352A (en) * | 2016-12-13 | 2017-04-26 | 北京科技大学 | Compound eye-type image acquisition apparatus used for high-temperature microscopic seepage experiment and analysis method thereof |
| CN107575209A (en) * | 2017-09-13 | 2018-01-12 | 中国石油大学(北京) | A kind of large-scale visual virtual design experimental provision of fracture and vug carbonate reservoir and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2696638C (en) * | 2010-03-16 | 2012-08-07 | Exxonmobil Upstream Research Company | Use of a solvent-external emulsion for in situ oil recovery |
| CN103216222B (en) * | 2013-04-30 | 2015-08-12 | 北京科技大学 | A kind of high-temperature and high-pressure visual device and analogy method simulating microbial oil displacement |
| US9719009B2 (en) * | 2015-03-30 | 2017-08-01 | King Fahd University Of Petroleum And Minerals | Oil recovery processes at high salinity carbonate reservoirs |
| CN108361007B (en) * | 2018-01-18 | 2022-06-03 | 中国石油天然气股份有限公司 | Low-permeability reservoir multilayer injection-production physical simulation device and method |
-
2018
- 2018-09-07 CN CN201811046304.6A patent/CN109209362B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202202850U (en) * | 2011-08-06 | 2012-04-25 | 中国石油化工股份有限公司 | Multi-medium oil displacement physical simulation experiment device |
| CN103161452A (en) * | 2013-03-13 | 2013-06-19 | 中国石油天然气股份有限公司 | Two-dimension microcosmic visualization experiment simulating device and use method thereof |
| CN105092446A (en) * | 2014-05-08 | 2015-11-25 | 中国海洋石油总公司 | Two-dimensional visual percolation experiment method capable of simulating in-layer heterogeneity |
| CN105626019A (en) * | 2014-11-07 | 2016-06-01 | 中国石油化工股份有限公司 | High-temperature high-pressure glass micro model gripper used for heavy oil thermal recovery |
| CN106351622A (en) * | 2016-11-03 | 2017-01-25 | 西南石油大学 | High-temperature microscopic visual physical simulation clamping model and use method thereof |
| CN106596352A (en) * | 2016-12-13 | 2017-04-26 | 北京科技大学 | Compound eye-type image acquisition apparatus used for high-temperature microscopic seepage experiment and analysis method thereof |
| CN107575209A (en) * | 2017-09-13 | 2018-01-12 | 中国石油大学(北京) | A kind of large-scale visual virtual design experimental provision of fracture and vug carbonate reservoir and method |
Non-Patent Citations (3)
| Title |
|---|
| Dynamic behaviour of direct spring loaded pressure relief valves connected to inlet piping: IV review and recommendations;C.J. Hos;《Journal of Loss Prevention in the Process Industries》;20170510;270-288 * |
| 室内物理模拟驱油实验操作流程及规范;庄野;《化工教研》;20180521;2-3 * |
| 高含水期二氧化碳驱油室内探索;肖啸;《应用化工》;20160630;第42卷(第6期);974-976 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109209362A (en) | 2019-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113042116B (en) | Waste liquid pool, waste liquid treatment device and sample analyzer | |
| CN109209362B (en) | Experimental system for simulating oil reservoir conditions, microscopic model and fixing device of microscopic model | |
| CN104713801B (en) | The big rock sample gas absorption desorption experimental apparatus of different size and method | |
| CN107389305B (en) | Convenient and easy-to-use multi-working-condition temperature-controllable cavitation visual experimental device and experimental method | |
| CN109441414B (en) | Microcosmic oil displacement experimental method for simulating oil reservoir conditions | |
| US6790674B2 (en) | Sampler | |
| CN102706890B (en) | Detection device and detection method of honeycomb brazing part | |
| CN103670391A (en) | Displacement experiment fluid control method and displacement experiment device | |
| CN201131688Y (en) | Split type cyclic heating foot-washing basin | |
| CN202545211U (en) | Hydraulic pump testing system capable of controlling oil liquid temperature | |
| CN210720376U (en) | Water environment monitoring equipment | |
| US20140377134A1 (en) | System for controlling and optimizing reactions in solid phase synthesis of small molecules | |
| CN209043706U (en) | A kind of three unbalanced shaft pressure Multifunctional core clampers of simulation | |
| JP2000128108A (en) | Method for deaerating air in filling liquid passage in liquid filling device | |
| CN105758639A (en) | Transmission cooling system for transmission rack test room | |
| CN114427394B (en) | Intermediate container with zero additional resistance and quick heat exchange | |
| CN109945588A (en) | A kind of coolant circulation system and control method applied on coating machine | |
| CN104492742B (en) | Biochip cleaning device | |
| CN214946468U (en) | Sealed liquid leakage prevention low-temperature liquid valve | |
| CN109470484A (en) | A kind of engine thermal is on probation to blow water system and blows water method | |
| CN117343837B (en) | Stem cell continuous liquid-changing culture device and application method thereof | |
| CN109555493B (en) | Fidelity coring device | |
| CN215066006U (en) | Cement concrete impermeability test device | |
| CN210332724U (en) | Fluid control integration manifold module | |
| WO2004089635A1 (en) | An ink cartridge filling machine of ink-jet recording device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |