CN116025346A - Test piece box module for large-scale thickened oil exploitation test - Google Patents
Test piece box module for large-scale thickened oil exploitation test Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 121
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 239000003027 oil sand Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000000295 fuel oil Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229920000742 Cotton Polymers 0.000 claims abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000012546 transfer Methods 0.000 claims description 27
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims 3
- 238000004088 simulation Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000003921 oil Substances 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 22
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- 239000012267 brine Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
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- 230000000149 penetrating effect Effects 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a test piece box module for a large-scale thickened oil exploitation test, wherein heat insulation cotton and tinfoil paper are arranged in a test box body, the inner space size of the test box body is 1000mm long by 400mm wide by 400mm high, a bottom layer, an oil sand reservoir layer and a cover layer are sequentially layered and pressed from bottom to top in the test piece box body, and the heights of the bottom layer, the oil sand reservoir layer and the cover layer are 160mm, 75mm and 165mm respectively; two sieve tubes, 75 temperature sensors and one pressure sensor are buried in an oil sand reservoir, the vertical sieve tube is used as an air injection sieve tube for simulating a vertical well, the height of the vertical sieve tube is 70mm, the horizontal sieve tube is used as a production sieve tube for simulating a horizontal well, and the length of the horizontal sieve tube is 950mm; the liquid injection channels on the side wall of each sieve tube are three respectively and are arranged at intervals in sequence along the length direction. The simulation exploitation of the large-size heavy oil reservoir can be carried out, and the simulation process is more real and reliable.
Description
Technical Field
The invention belongs to the technical field of energy exploitation simulation tests, and particularly relates to a test piece box module for a large-scale heavy oil exploitation test.
Background
The existing heavy oil reservoir exploitation simulation test method mainly has the following problems: (1) The adopted model has smaller size, and has certain space limitation in the development process of simulating soft rock deformation, so that the physical characteristics in the heavy oil reservoir exploitation process can not be accurately simulated; (2) the automation of the installation of the device is low.
Disclosure of Invention
The invention aims to provide a test piece box module for a large-scale heavy oil exploitation test, which can be used for carrying out large-scale heavy oil reservoir simulated exploitation, and the simulation process is more real and reliable.
The technical scheme adopted by the invention is as follows: the utility model provides a test piece case module for large-scale viscous crude exploitation test, includes test piece box, its characterized in that: the test box body is internally provided with heat insulation cotton and tinfoil paper, the internal space size of the test box body is 1000mm long, 400mm wide and 400mm high, a bottom layer, an oil sand reservoir layer and a cover layer are sequentially layered and paved in the test box body from bottom to top, and the heights of the bottom layer, the oil sand reservoir layer and the cover layer are 160mm, 75mm and 165mm respectively; two sieve tubes, 75 temperature sensors and one pressure sensor are buried in an oil sand reservoir, the vertical sieve tube is used as an air injection sieve tube for simulating a vertical well, the height of the vertical sieve tube is 70mm, the horizontal sieve tube is used as a production sieve tube for simulating a horizontal well, and the length of the horizontal sieve tube is 950mm; the number of the liquid injection channels on the side wall of each sieve tube is three, and the liquid injection channels are sequentially arranged at intervals along the length direction;
establishing a coordinate system by taking the horizontal length direction of the simulated stratum as a Y axis, the vertical direction as a Z axis and the other horizontal direction as an X axis, wherein the temperature sensors are respectively arranged on five sections of Y=380 mm, Y=440 mm, Y=500 mm, Y=560 mm and Y=620 mm in the horizontal direction; are respectively arranged on five sections of X=125 mm, X=180 mm, X=235 mm, X=290 mm and X=345 mm in the horizontal X-axis direction; respectively arranged on three sections of Z=175 mm, Z=195 mm and Z=215 mm in the vertical Z-axis direction; the pressure sensor is installed close to the horizontal screen pipe and used for monitoring the capacity expansion pressure of the horizontal screen pipe.
As the optimization of the scheme, the main body model comprises a main body high-pressure cavity module and a test piece box module, wherein the main body high-pressure cavity module is of a high-pressure sealing pressure bin structure with an outer circle and an inner circle, and is surrounded by a cylinder and left and right round end covers, the test piece box module is a rectangular test piece accommodating cavity, the rectangular test piece accommodating cavity is collinear with the axial lead of the high-pressure sealing pressure bin, and a cushion block is arranged between the main body high-pressure cavity module and the test piece box module; a row of lifters are arranged at the left and right sides of the top of the lower cushion block below the test piece box module at intervals, and can protrude out of the lower cushion block and also sink into the lower cushion block; a row of rollers are arranged at the bottom of the test piece box module at intervals left and right through the lining plates, and when the test piece box module is pushed into the main body high-pressure cavity module, the lifter is supported below the rollers.
Still preferably, the device further comprises a main body frame for supporting the main body model, wherein the main body frame is of a rectangular frame structure, the main body model is arranged in the rectangular frame structure, and the left end and the right end of the main body model extend out of the main body frame.
Further preferably, a transfer sliding rail is arranged on the right side of the main body frame, and extends to the position right below the main body high-pressure cavity module, and the width of the transfer sliding rail is smaller than the inner space width of the main body frame; the transfer rack is slidably arranged on the transfer slide rail and is divided into a test piece box lifting transfer rack and a right round end cover transfer rack, and the test piece box lifting transfer rack can perform lifting movement and is used for supporting a test piece box module; the top of the right round end cover transfer frame is arc-shaped and is used for supporting the right round end cover, the test piece box lifting transfer frame can enable the test piece box module to be pushed into the main body high-pressure cavity module horizontally after being lifted, the top of the test piece box lifting transfer frame is lower than the bottom of the main body high-pressure cavity module after being lowered, so that the test piece box lifting transfer frame can slide into the lower side of the main body high-pressure cavity module conveniently, and the right round end cover transfer frame can slide leftwards to a set position to install the right round end cover.
The invention has the beneficial effects that: the simulation exploitation of the large-size heavy oil reservoir can be carried out, and the simulation process is more real and reliable.
Drawings
One arrangement of sieve tubes, temperature sensors in the test piece box of fig. 1.
Another arrangement of sieve tubes, temperature sensors in the test piece box of fig. 2.
FIG. 3 is a schematic diagram of the steps of the present invention.
Fig. 4 is a schematic diagram of a main body model of a simulation system of a multi-field coupling coal-rock mass dynamic disaster prevention and control technology.
Fig. 5 is an interior left view of fig. 4.
Fig. 6 is a schematic structural view of the specimen box.
Fig. 7 is an interior left view of fig. 6.
Fig. 8 is a simplified view of the arrangement of a heating tube, a temperature control probe, and an ultrasonic probe.
FIG. 9 is a simplified illustration of an anti-channeling plate.
Fig. 10 is a state before the specimen box is loaded into the main body high-pressure chamber module.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 and 2, a test piece box module for large-scale heavy oil exploitation test comprises a test piece box body.
The test box body is internally provided with heat insulation cotton and tinfoil paper, the internal space size of the test box body is 1000mm long, 400mm wide and 400mm high, a bottom layer, an oil sand reservoir layer and a cover layer are sequentially layered and pressed from bottom to top in the test box body, and the heights of the bottom layer, the oil sand reservoir layer and the cover layer are 160mm, 75mm and 165mm respectively; two sieve tubes, 75 temperature sensors and one pressure sensor are buried in an oil sand reservoir, the vertical sieve tube is used as an air injection sieve tube for simulating a vertical well, the height of the vertical sieve tube is 70mm, the horizontal sieve tube is used as a production sieve tube for simulating a horizontal well, and the length of the horizontal sieve tube is 950mm; the liquid injection channels on the side wall of each sieve tube are three respectively and are arranged at intervals in sequence along the length direction.
Establishing a coordinate system by taking the horizontal length direction of the simulated stratum as a Y axis, the vertical direction as a Z axis and the other horizontal direction as an X axis, wherein the temperature sensors are respectively arranged on five sections of Y=380 mm, Y=440 mm, Y=500 mm, Y=560 mm and Y=620 mm in the horizontal direction; are respectively arranged on five sections of X=125 mm, X=180 mm, X=235 mm, X=290 mm and X=345 mm in the horizontal X-axis direction; respectively arranged on three sections of Z=175 mm, Z=195 mm and Z=215 mm in the vertical Z-axis direction; the pressure sensor is installed close to the horizontal screen pipe and used for monitoring the capacity expansion pressure of the horizontal screen pipe.
As shown in fig. 3, the physical simulation method for producing heavy oil reservoirs by hydraulically communicating with the horizontal well of the VHSD vertical well comprises the following steps:
step one, preparing a test material;
(1a) In the field drilling process, respectively taking out cores of an oil sand reservoir, a bottom layer and a cover layer, and testing physical and mechanical properties of each stratum rock on a rock mechanical testing machine, wherein the physical and mechanical properties comprise uniaxial compressive strength, triaxial compressive strength, tensile strength, elastic modulus and poisson ratio of the rock;
(1b) Matching similar materials to make the physical and mechanical properties the same as those of each stratum; the reservoir is simulated by oil sand retrieved on site, the retrieved oil sand rock sample is crushed firstly, and then oil sand particles for pressing the reservoir are screened out according to test requirements;
(1c) And processing two sieve tubes, wherein the lengths of the sieve tubes are calculated according to the lengths of the VHSD horizontal production well and the vertical steam injection well and the similarity criteria, and the three liquid injection channels on the side wall of the sieve tubes are respectively arranged at intervals along the length direction. In the test process, different numbers of liquid injection channels can be selected for liquid injection according to the requirement.
Simulating stratum pressing;
firstly placing a test piece box body with the length of 1000mm, the width of 400mm and the height of 400mm on a pressing platform, placing heat insulation cotton and tinfoil paper in the test box body, pressing similar materials according to the sequence of a bottom layer, an oil sand storage layer and a cover layer, and layering, wherein the maximum pressing pressure can reach 10MPa.
The heights of the bottom layer, the oil sand reservoir layer and the cover layer are 160mm, 75mm and 165mm respectively; two sieve tubes, 75 temperature sensors and one pressure sensor are buried in an oil sand reservoir according to a test scheme while pressing, the vertical sieve tube is used as an air injection sieve tube for simulating a vertical well, the height of the vertical sieve tube is 70mm, the horizontal sieve tube is used as a production sieve tube for simulating a horizontal well, and the length of the horizontal sieve tube is 950mm.
And establishing a coordinate system by taking the horizontal length direction of the simulated stratum as a Y axis, the vertical direction as a Z axis and the other horizontal direction as an X axis. The temperature sensors are respectively arranged on five sections of Y=380 mm, Y=440 mm, Y=500 mm, Y=560 mm and Y=620 mm in the horizontal direction. Are respectively arranged on five sections of X=125 mm, X=180 mm, X=235 mm, X=290 mm and X=345 mm in the horizontal X-axis direction. Are arranged on three sections of Z=175 mm, Z=195 mm and Z=215 mm in the vertical Z-axis direction respectively. The pressure sensor is installed close to the horizontal screen pipe and used for monitoring the capacity expansion pressure of the horizontal screen pipe.
Step three, equipment connection;
and lifting the test piece box body from the pressing platform and closing the cover. All sensors are connected with a data acquisition instrument, a steam generator is connected with a simulated gas injection sieve tube, a negative pressure extraction system and metering equipment are connected with a simulated production sieve tube, and the reliability of each instrument and each sensor is checked.
And step four, preparing a simulation system for the dynamic disaster prevention and control technology of the multi-field coupling coal rock mass.
The simulation system for the multi-field coupling coal-rock mass dynamic disaster prevention and control technology comprises a main body model and a transport frame. The main body model has a true triaxial simulation experiment function and comprises a true triaxial loading system and a test piece box in the first step. The X direction is provided with an independent hydraulic loading device for pressurization, and the maximum loading pressure is 5000kN; y, Z are provided with 4 groups of independent hydraulic loading devices for pressurization, the maximum loading pressure of a single group of hydraulic loading devices is 3000kN, each group of hydraulic loading devices can be controlled independently, loading of different acting forces in the length direction of 1000mm is realized, and the triaxial stress state of the underground reservoir can be simulated more truly.
And fifthly, loading a preset ground stress value.
The test piece box is sent into a true triaxial loading system through a transfer frame, so that a stress loading cushion block of the test piece box body corresponds to a pressure head in the true triaxial loading system one by one; according to the ground stress of the stratum, a true triaxial loading system is utilized to apply the ground stress to the simulated stratum, in the process of loading the stress, a pressure head is firstly moved to enable the pressure head to be in contact with a loading cushion block, and a certain prestress is applied to achieve sigma x ＝σ y ＝σ z And then loads Z, Y, X three-direction stresses one by one in a stepwise manner to reach a predetermined ground stress value.
And step six, hydraulic expansion of the oil sand reservoir.
And after the applied true triaxial ground stress is stable, starting a hot water injection capacity expansion experiment. The temperature sensor sampling frequency was 1/min. Firstly, KCL hot brine with the temperature of 80 ℃ is injected into a horizontal well through a liquid injection channel, the injection time is 45 minutes or the horizontal well is closed after the temperature difference between two rows of temperature sensors beside the horizontal well is not less than 10 ℃; injecting KCL hot brine at 80 ℃ into the vertical well through the liquid injection channel according to the pressure of 800kPa, and closing the vertical well after injecting for 45 minutes. At this time, the actual real states of the horizontal well and the vertical well in the underground are simulated, and the liquid injection expansion is prepared. Finally, injecting KCL hot brine at 80 ℃ into the vertical well according to displacement control of 2L/min, and injecting for 60 minutes until the vertical well and the horizontal well are communicated in a capacity-expanding manner. The capacity expansion communication mark of the vertical well horizontal well is as follows: the capacity expansion pressure of the horizontal screen pipe is not less than 50kPa or the temperature difference of the capacity expansion area observed by the temperature sensor is not less than 10 ℃ in the well closing state of the horizontal well.
And seventhly, researching the influence of the ground stress anisotropy.
Repeating the first step and the sixth step, and selecting two groups of different ground stress loading values to perform influence study of ground stress anisotropy; one set of ground stress loading values is: a true triaxial ground stress of 2000kPa in a vertical direction (Z direction), 1600kPa in a maximum horizontal main stress (X direction) and 1000kPa in a minimum horizontal main stress (Y direction); another set of ground stress loading values is: a true triaxial ground stress of 2000kPa in a vertical direction (Z direction), 1200kPa in a maximum horizontal main stress (X direction) and 1000kPa in a minimum horizontal main stress (Y direction); and respectively setting loading of two groups of true triaxial ground stress: and the development of the expansion area is reflected by the monitoring of the temperature sensor.
And step eight, researching the influence of VHSD temporary plugging and capacity expansion.
And repeating the step one-step six, selecting two groups of liquid injection channels with different numbers, wherein one group of experiments only sets one liquid injection channel, researching the influence of temporary blockage of a hypertonic channel on the formation of a VHSD composite expansion area by reducing the liquid injection channels, and reflecting the development of the expansion area by monitoring of a temperature sensor.
And step nine, researching the influence of the horizontal well distance of the vertical well on the communication.
And repeating the first step and the sixth step, respectively setting the distances between the vertical well and the horizontal well to be 17.5cm and 7.5cm, researching the influence of the distance between the vertical well and the horizontal well on the communication, and reflecting the expansion area distribution through the monitoring of the temperature sensor.
And step ten, ending the test.
After the test is completed, the force load is required to be unloaded to zero, then the hydraulic system is switched to low pressure, the test piece is unloaded, the computer and the controller are closed, the power supply is cut off, and the test is finished.
As shown in fig. 4-6, the main body model of the simulation system for the dynamic disaster prevention and control technology of the multi-field coupling coal rock mass mainly comprises a main body high-pressure cavity module and a test piece box.
The shell 1 of the main body high-pressure cavity module is of a high-pressure closed pressure bin structure which is formed by combining an outer circle and an inner circle surrounded by bolts through a circular ring 3, a left circular end cover 4 and a right circular end cover 5. A front cushion block 2, a rear cushion block 9, an upper cushion block 10 and a lower cushion block 11 are respectively arranged on the front, the rear, the upper and the lower of the inner wall of the circular ring 3. The front cushion block 2, the rear cushion block 9, the upper cushion block 10 and the lower cushion block 11 enclose a rectangular cavity for the test piece box to be placed.
The left round end cover 4 is provided with an axial hydraulic cylinder 6 in a penetrating way, and the middle part of the right round end cover 5 is provided with a channel in a penetrating way, so that the hydraulic cylinder can be used for seepage tests, punching or protrusion tests.
The left round end cover 4 and the right round end cover 5 are respectively penetrated with a wire harness pipeline leading-out hole 7, a row of lifters 8 are arranged at the top of the lower cushion block 11 at left and right intervals, and the lifters 8 can protrude out of the lower cushion block 11 and also can sink into the lower cushion block 11. Each lifter 8 adopts a double-wheel structure which is arranged at intervals front and back and symmetrically, realizes front and back double support, and has balanced and stable stress. Each lifter 8 is driven by a separate hydraulic pressure, and all lifters 8 are controlled to synchronously lift and lower through a control system.
Referring to fig. 4-7, the test piece box is a rectangular test piece accommodating cavity surrounded by the left side plate 12, the bottom plate 13, the top plate 14, the right side plate 15, the front side plate 23 and the rear side plate 24 and combined with bolts, and the rectangular test piece accommodating cavity is collinear with the axial lead of the high-pressure closed pressure bin, so that the rectangular test piece is centered in the main body model. A left pressing plate 16 is arranged on the left side in the rectangular test piece accommodating cavity, a plurality of upper pressing plates 17 are arranged on the top left and right in sequence, and a plurality of front pressing plates 18 are arranged on the front left and right in sequence. The axial hydraulic cylinders 6 can penetrate through the left side plate 12 and are connected with the left pressing plate 16, each upper pressing plate 17 is connected with a top hydraulic cylinder 20 through an upper cushion block 19 penetrating through the top plate 14, the top hydraulic cylinder 20 is provided with a hydraulic piston 20a, the upper cushion block 19 is acted on through the hydraulic piston 20a, and then the upper pressing plate 17 applies load to the rectangular test piece. Each front platen 18 is connected to a lateral hydraulic cylinder 22 by a side block 21 mounted through a front side plate 23, the lateral hydraulic cylinder 22 also having a hydraulic piston, through which the side block 21 is acted upon by the hydraulic piston, and the rectangular test piece is loaded by the front platen 18.
Referring to fig. 4 to 8, a plurality of heating pipes 27 and temperature control probes 28 are installed in the openings of the upper platen 17, the front platen 18, the bottom plate 13, and the rear plate 24, and a plurality of ultrasonic probes 29 are installed in the openings of the upper platen 17, the front platen 18, the left platen 16, the bottom plate 13, the rear plate 24, and the right plate 15. A row of rollers 26 are mounted at left and right intervals on the bottom of the test piece box through a lining plate 25, and when the test piece box is pushed into the main body high-pressure cavity module, the lifter 8 is supported below the rollers 26.
Preferably, a high-frequency vibrator is arranged on the cavity of the axial hydraulic cylinder 6, high-speed vibration is generated under the action of a high-pressure air source, and high-frequency vibration force can be transmitted to the test piece right through the corresponding hydraulic cavity, the hydraulic piston and the left pressing plate 16.
The anti-channeling plates 30 corresponding to the upper pressing plates 17 one by one are arranged right above the bottom plate 13, a central air inlet hole 30a and a plurality of annular grooves 30b surrounding the central air inlet hole 30a are formed in the anti-channeling plates 30, and all the annular grooves 30b are communicated with the central air inlet hole 30a through communication grooves 30c which are distributed in a divergent mode, and an air inlet pipe transversely penetrates through the rear side wall of the test piece box and is connected to the bottom of the central air inlet hole 30 a. The annular grooves 30b are rectangular or circular and are equally spaced apart.
The air inlet pipe transversely passes through the rear side wall of the test piece box and is connected to the bottom of the central air inlet hole 30a, the ventilation partition plate 31 is arranged above the anti-channeling plate 30, the filter plates 32 are arranged at the left end and the right end of the test piece, and the sealing gaskets 33 are arranged on the upper side, the lower side, the front side and the rear side of the test piece.
The inner cavity of the test piece box can be provided with a rectangular test piece with the length of 1000 times the width of 400 times the height of 400mm, and the internal pressure resistance of the main body high-pressure cavity module is 10MPa.
Only one axial hydraulic cylinder 6 has a maximum loading pressure of 5000kN; four groups of top hydraulic cylinders 20 and side hydraulic cylinders 22 are respectively arranged, each group of hydraulic cylinders is provided with two parallel hydraulic loading systems for pressurizing, one of the hydraulic cylinders is a static load loading system, the other hydraulic loading system is a dynamic load loading system, the maximum loading pressure of a single group of hydraulic loading devices is 3000kN, each group of hydraulic loading systems is used for independently controlling one pressing plate and is arranged on the corresponding pressing plate in a left-right centering mode, and the axial hydraulic cylinders 6, the top hydraulic cylinders 20 and the side hydraulic cylinders 22 can be used for loading dynamic and static loads.
As shown in fig. 10, the multi-field coupling coal-rock mass dynamic disaster prevention and control technology simulation system comprises a main body model, a main body frame 37 for supporting the main body model, a transfer sliding rail 36, a test piece box lifting and conveying frame 34 and a right round end cover conveying frame 35. The specimen box lifting and lowering transfer frame 34 and the right round end cap transfer frame 35 are collectively referred to as a transfer frame.
The main body frame 37 is used for supporting a main body model, the main body frame 37 is of a rectangular frame structure, and the left end and the right end of the main body model extend out of the main body frame 37. The right side of main part frame 37 is provided with and transports slide rail 36, and transport slide rail 36 extends to the main part high pressure chamber module under, and transport slide rail 36's width is less than the interior empty width of main part frame 37. The transfer slide rail 36 is slidably provided with a specimen box lifting and transferring frame 34 and a right round end cover transferring frame 35, and the specimen box lifting and transferring frame 34 can perform lifting and transferring movements and is used for supporting the specimen box. The top of the right round end cover transferring frame 35 is arc-shaped and is used for supporting the right round end cover 5, the test piece box lifting transferring frame 34 just enables the test piece box to be horizontally pushed into the main body high-pressure cavity module after being lifted, and the top of the test piece box lifting transferring frame 34 is lower than the bottom of the main body high-pressure cavity module after being lowered, so that the test piece box lifting transferring frame slides into the lower part of the main body high-pressure cavity module, and the right round end cover transferring frame 35 can slide leftwards to a set position to install the right round end cover 5.
The main characteristics of the main body model are as follows:
(1) The shell of the main body high-pressure cavity module adopts a high-pressure sealing pressure bin with an outer circle and an inner circle, wherein the outer circle and the inner circle are surrounded by a circular ring, a left circular end cover and a right circular end cover which are combined with bolts, and the structure of the high-pressure sealing pressure bin is quite different from that of the traditional pressure bin with an outer square and an inner square which are surrounded by six plates; meanwhile, the test piece box is rectangular, so that the mounting of the test piece box is met, the front, rear, upper and lower cushion blocks with special shapes are creatively arranged on the front, rear, upper and lower sides of the inner wall of the high-pressure closed pressure bin respectively, and a rectangular cavity for the test piece box to be placed is formed by surrounding the front, rear, upper and lower cushion blocks, so that a test piece box mounting environment with an outer circle and an inner side is formed, the internal pressure resistance is stronger, the sealing capability is better, the internal pressure resistance can be up to 10MPa, and a better test environment is provided for a simulation test;
(2) The lifter is supported below the rollers, so that the test piece box can be pushed in and pulled out more easily and laborsaving, the automation degree of installation is improved, and the large-scale simulation test operation is easier and laborsaving;
(3) The upper pressing plate, the front pressing plate, the bottom plate and the rear side plate are provided with a plurality of heating pipes and temperature control probes, and the upper pressing plate, the front pressing plate, the left pressing plate, the bottom plate, the rear side plate and the right side plate are provided with a plurality of ultrasonic probes, so that a fractured rock mass seepage test under the three-dimensional stress-seepage-temperature multi-field coupling condition can be developed; and combine the anti-channeling board that sets up directly over the bottom plate, ventilative baffle is installed to the top of anti-channeling board, installs the filter in the left and right sides both ends of test piece, installs sealed pad around the upper and lower of test piece, can prevent the channeling, can guarantee again that the gas permeability is good to possess and filter and seal multiple effect.
Claims (4)
1. The utility model provides a test piece case module for large-scale viscous crude exploitation test, includes test piece box, its characterized in that: the test box body is internally provided with heat insulation cotton and tinfoil paper, the internal space size of the test box body is 1000mm long, 400mm wide and 400mm high, a bottom layer, an oil sand reservoir layer and a cover layer are sequentially layered and paved in the test box body from bottom to top, and the heights of the bottom layer, the oil sand reservoir layer and the cover layer are 160mm, 75mm and 165mm respectively; two sieve tubes, 75 temperature sensors and one pressure sensor are buried in an oil sand reservoir, the vertical sieve tube is used as an air injection sieve tube for simulating a vertical well, the height of the vertical sieve tube is 70mm, the horizontal sieve tube is used as a production sieve tube for simulating a horizontal well, and the length of the horizontal sieve tube is 950mm; the number of the liquid injection channels on the side wall of each sieve tube is three, and the liquid injection channels are sequentially arranged at intervals along the length direction;
establishing a coordinate system by taking the horizontal length direction of the simulated stratum as a Y axis, the vertical direction as a Z axis and the other horizontal direction as an X axis, wherein the temperature sensors are respectively arranged on five sections of Y=380 mm, Y=440 mm, Y=500 mm, Y=560 mm and Y=620 mm in the horizontal direction; are respectively arranged on five sections of X=125 mm, X=180 mm, X=235 mm, X=290 mm and X=345 mm in the horizontal X-axis direction; respectively arranged on three sections of Z=175 mm, Z=195 mm and Z=215 mm in the vertical Z-axis direction; the pressure sensor is installed close to the horizontal screen pipe and used for monitoring the capacity expansion pressure of the horizontal screen pipe.
2. The test piece box module for large-scale heavy oil recovery test according to claim 1, wherein: the test piece box module is a rectangular test piece accommodating cavity, the rectangular test piece accommodating cavity is collinear with the axial line of the high-pressure sealing pressure bin, and a cushion block is arranged between the main body high-pressure cavity module and the test piece box module; a row of lifters (8) are arranged at left and right intervals on the top of a lower cushion block (11) below the test piece box module, and the lifters (8) can protrude out of the lower cushion block (11) and also can sink into the lower cushion block (11); a row of rollers (26) are arranged at the bottom of the test piece box module at left and right intervals through lining plates (25), and when the test piece box module is pushed into the main body high-pressure cavity module, the lifter (8) is supported below the rollers (26).
3. The test piece box module for large-scale heavy oil recovery test according to claim 2, wherein: the main body frame (37) is used for supporting the main body model, the main body frame (37) is of a rectangular frame structure, the main body model is arranged in the rectangular frame structure, and the left end and the right end of the main body model extend out of the main body frame (37).
4. A test piece box module for large scale heavy oil recovery testing according to claim 3, characterized in that: a transfer sliding rail (36) is arranged on the right side of the main body frame (37), the transfer sliding rail (36) extends to the position right below the main body high-pressure cavity module, and the width of the transfer sliding rail (36) is smaller than the inner hollow width of the main body frame (37); the transfer slide rail (36) is slidably provided with a transfer frame, the transfer frame is divided into a test piece box lifting transfer frame (34) and a right round end cover transfer frame (35), and the test piece box lifting transfer frame (34) can perform lifting movement and is used for supporting a test piece box module; the top of the right round end cover transferring frame (35) is arc-shaped and is used for supporting the right round end cover (5), the test piece box lifting transferring frame (34) can enable the test piece box module to be pushed into the main body high-pressure cavity module horizontally after being lifted, the top of the test piece box lifting transferring frame (34) is lower than the bottom of the main body high-pressure cavity module after being lowered, so that the test piece box lifting transferring frame can slide into the lower portion of the main body high-pressure cavity module conveniently, and the right round end cover transferring frame (35) can slide leftwards to a set position to install the right round end cover (5).
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202731877U (en) * | 2012-06-25 | 2013-02-13 | 张金川 | Simulated physical simulation experiment instrument of oil and gas migration and accumulation |
| CN103032057A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Steam-driven three-dimensional physical simulation system for thick oil horizontal well |
| CN106018105A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Multifunctional physical simulation test system for coal engineering and coal model test method |
| CN106018104A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Sealing structure of stress loading device |
| CN109916750A (en) * | 2019-04-09 | 2019-06-21 | 重庆大学 | Coal and gas prominent simulation test test piece box |
| CN109991391A (en) * | 2019-04-09 | 2019-07-09 | 重庆大学 | The rock stratum of coal measures containing tomography coal and gas prominent simulation experiment method |
| CN109991108A (en) * | 2019-04-09 | 2019-07-09 | 重庆大学 | Metallic framework reinforcing coal and gas outburst simulation test method under sound load action |
| CN110685668A (en) * | 2019-11-12 | 2020-01-14 | 重庆大学 | Simulation sample for heavy oil reservoir exploitation test |
| CN110761781A (en) * | 2019-11-12 | 2020-02-07 | 重庆大学 | Large-scale three-dimensional simulation method for exploiting super-heavy oil reservoir by FUSE technology |
| CN114961677A (en) * | 2021-02-19 | 2022-08-30 | 中国石油天然气股份有限公司 | Horizontal well steam flooding thickened oil exploitation simulation experiment device and method |
-
2022
- 2022-12-23 CN CN202211669449.8A patent/CN116025346B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032057A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Steam-driven three-dimensional physical simulation system for thick oil horizontal well |
| CN202731877U (en) * | 2012-06-25 | 2013-02-13 | 张金川 | Simulated physical simulation experiment instrument of oil and gas migration and accumulation |
| CN106018105A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Multifunctional physical simulation test system for coal engineering and coal model test method |
| CN106018104A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Sealing structure of stress loading device |
| CN109916750A (en) * | 2019-04-09 | 2019-06-21 | 重庆大学 | Coal and gas prominent simulation test test piece box |
| CN109991391A (en) * | 2019-04-09 | 2019-07-09 | 重庆大学 | The rock stratum of coal measures containing tomography coal and gas prominent simulation experiment method |
| CN109991108A (en) * | 2019-04-09 | 2019-07-09 | 重庆大学 | Metallic framework reinforcing coal and gas outburst simulation test method under sound load action |
| CN110685668A (en) * | 2019-11-12 | 2020-01-14 | 重庆大学 | Simulation sample for heavy oil reservoir exploitation test |
| CN110761781A (en) * | 2019-11-12 | 2020-02-07 | 重庆大学 | Large-scale three-dimensional simulation method for exploiting super-heavy oil reservoir by FUSE technology |
| CN114961677A (en) * | 2021-02-19 | 2022-08-30 | 中国石油天然气股份有限公司 | Horizontal well steam flooding thickened oil exploitation simulation experiment device and method |
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