An experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions

Abstract

The invention relates to the technical field of oil and gas development, and discloses an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions, comprising a bottom plate, a height adjustment mechanism is provided on the bottom plate, the height adjustment mechanism is used to adjust the height of a simulated warehouse pipe, the height adjustment mechanism is connected to an angle adjustment mechanism, the angle adjustment mechanism is used to adjust the angle of a rotating frame, a connection adjustment mechanism is provided on the rotating frame, the connection adjustment mechanism is used to adjust the connection relationship between warehouse pipes, the connection adjustment mechanism is connected to a clamping mechanism, and various types of lithology rocks are filled in parallel to achieve synchronous simulation of the migration and fractionation effect of oil and gas in different rock formations; a multi-fluid quantitative collector is used to achieve full-component collection of oil, gas and water after migration and fractionation; and accurate temperature and pressure control of the simulation system is used to simulate the heterogeneous migration and fractionation effect of oil and gas under different geological environments.

Description

Technical Field

[0001] The invention belongs to the technical field of oil and gas development, and in particular relates to an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions. Background Art

[0002] Under geological conditions, the organic matter in the source layer is subjected to the underground high temperature to generate oil and natural gas, and the generated oil and gas will migrate along various lithological strata to the reservoir to form accumulation. After being discharged from the source rock, the oil and gas may migrate along strata of different directions and lithologies. Since the oil and gas will produce obvious component fractionation during the migration of the strata, the oil and gas from the same set of source rocks will form different oil and gas reservoirs after different migration distances and lithological strata fractionation, resulting in complex types and distribution patterns of oil and gas reservoirs. Therefore, revealing the heterogeneous stratigraphic fractionation effect during the migration of oil and gas is a key issue facing oil and gas exploration. However, under geological conditions, it is difficult to identify the migration pattern of oil and gas in such a heterogeneous system due to the limitations of exploration data and typical samples. Through laboratory simulation experiments, we can simultaneously simulate the migration and fractionation of oil and gas in various lithological formations, and obtain the original oil and gas samples after the migration and fractionation, which provides an important way to reveal the migration mode of oil and gas in geological heterogeneous systems. However, there is currently a lack of relevant experimental equipment, and there are two main difficulties: First, under geological conditions, oil and gas from the same source layer may be differentially injected into various lithological formations along different migration directions, and it is necessary to carry out the migration simulation of multi-lithological combinations simultaneously; second, during the simulation experiment, it is necessary to quantitatively collect multiphase fluids after migration and fractionation, including oil, gas and water components. Therefore, it is urgent to develop an experimental device that simulates the heterogeneous migration and fractionation of oil and gas under geological conditions, which can be used to reveal the heterogeneous migration and separation mode of oil and gas under complex geological conditions and guide the efficient exploration of oil and gas resources. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions, which effectively solves the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions, comprising a bottom plate, a height adjustment mechanism is provided on the bottom plate, the height adjustment mechanism is used to adjust the height of the simulated warehouse pipe, the height adjustment mechanism is connected to an angle adjustment mechanism, the angle adjustment mechanism is used to adjust the angle of a rotating frame, a connection adjustment mechanism is provided on the rotating frame, the connection adjustment mechanism is used to adjust the connection relationship between the warehouse pipes, the connection adjustment mechanism is connected to a clamping mechanism, the clamping mechanism is used to clamp the reaction warehouse pipe, the connection adjustment mechanism is connected to a vibration mechanism, the vibration mechanism is used to vibrate the reaction warehouse pipe, so as to simulate the vibration during migration, a simulation injection mechanism is provided on the bottom plate, the simulation injection mechanism is used to inject corresponding materials during simulation, the simulation injection mechanism is connected to an injection docking mechanism, the injection docking mechanism is used to dock during injection, a simulation collection mechanism is provided on the bottom plate, the simulation collection mechanism is used to collect the product after fractionation during simulation, the simulation collection mechanism is connected to a collection docking mechanism, the collection docking mechanism is used to symmetric during simulation collection, so as to facilitate collection.

[0005] Preferably, the connection adjustment mechanism includes a connection adjustment slide groove evenly provided on the rotating frame, a connection adjustment screw rod is rotatably connected between the end walls of the connection adjustment slide groove, the connection adjustment screw rod is connected to the lifting motor power fixedly installed in the rotating frame, the outer surface of the connection adjustment screw rod is threadedly connected with a connection adjustment nut block, the connection adjustment nut block is slidably connected between the end walls of the connection adjustment slide groove, a worm cavity is provided in the connection adjustment nut block, a worm shaft is rotatably connected between the end walls of the worm cavity, the worm shaft is connected to the adjustment motor power fixedly installed in the connection adjustment nut block, a worm is fixedly installed on the outer surface of the worm shaft, the worm is meshed with a worm wheel, the worm wheel is fixedly installed on the outer surface of the connection rotating rod, the connection rotating rod passes through and is rotatably installed on the end wall of the worm cavity, the end of the connection rotating rod is fixedly connected with a cylinder, and the cylinders The rotating frame is fixedly connected with a fixed plate, the fixed plate is fixedly connected with a fixed cylinder, the fixed cylinder is symmetrically provided with a connecting gear cavity, a connecting gear shaft is rotatably connected between the end walls of the connecting gear cavity, the connecting gear shaft is connected to the power of a connecting motor fixedly installed in the fixed cylinder, the outer surface of the connecting gear shaft is fixedly connected with a connecting gear, the connecting gear is meshed with a connecting annular rack, the connecting annular rack is rotatably connected to the fixed cylinder, an electromagnet is fixedly connected to the connecting annular rack, an adsorption ring is adsorbed and connected to the outer surface of the electromagnet, a connecting threaded head is fixedly connected to the adsorption ring, the connecting threaded head is threadedly connected to the connecting threaded pipe, the connecting threaded head is rotatably connected to a connecting hose, the connecting hose is connected to the fixed cylinder through a connecting hose fixing ring, and the connecting hose is retracted in a connecting channel provided in the fixed cylinder.

[0006] Preferably, the height adjustment mechanism includes a lifting plate symmetrically fixedly connected to the base plate, the lifting plate is rotatably connected with a lifting screw rod, the lifting screw rod is dynamically connected to a height adjustment motor fixedly mounted on the lifting plate, the outer surface of the lifting screw rod is threadedly connected with a lifting nut block slidably connected to the lifting plate, an angle adjustment block is fixedly connected to the end wall of the lifting nut block, the angle adjustment block is slidably connected to the lifting plate, one end of a stabilizing connecting plate is fixedly connected to the lifting plate, and the other end of the stabilizing connecting plate is fixedly connected to the base plate.

[0007] Preferably, the angle adjustment mechanism includes an angle adjustment gear cavity provided in the angle adjustment block, an angle adjustment shaft is rotatably connected between the end walls of the angle adjustment gear cavity, the angle adjustment shaft extends outside the angle adjustment gear cavity, the end of the angle adjustment shaft is fixedly connected to the rotating frame, the outer surface of the angle adjustment shaft is fixedly connected to the angle adjustment driven gear, an angle adjustment driving gear shaft is rotatably connected between the end walls of the angle adjustment gear cavity on one side, the angle adjustment driving gear shaft is connected to the angle adjustment motor power fixedly installed therein, the outer surface of the angle adjustment driving gear shaft is fixedly connected to the angle adjustment driving gear, the angle adjustment driving gear is meshed with the angle adjustment driven gear, a braking electric push rod is fixedly connected to the end wall on the other side, a braking electric push rod is fixedly connected to the end of the braking electric push rod, the braking tooth is meshed with the angle adjustment driven gear, the rotating frame is symmetrically provided with docking through holes, a stabilizing ring is rotatably connected to A, a stabilizing plate is symmetrically fixedly connected to the stabilizing ring, and the stabilizing plate is fixedly connected to the rotating frame.

[0008] Preferably, the clamping mechanism comprises an annular frame symmetrically fixedly connected to the cylinder, a clamping cavity is arranged in the annular frame, a clamping driving gear shaft is rotatably connected to the end wall of the clamping cavity, the clamping driving gear shaft is connected to the clamping motor power fixedly installed in the annular frame, a clamping driving gear is fixedly connected to the end of the clamping driving gear shaft, the clamping driving gear is meshed with a clamping annular rack, the clamping annular rack is rotatably installed between the end walls of the clamping cavity, the clamping annular rack is meshed with a plurality of clamping driven gears, and the clamping driven gear is fixedly installed It is installed on the outer surface of the clamping screw, and the clamping screw is rotatably installed on the end wall of the clamping cavity. The outer surface of the clamping screw is threadedly connected with a clamping threaded tube, and the clamping threaded tube is slidably connected to the end wall of the clamping cavity. The end of the clamping threaded tube is fixedly connected with a clamping plate, and an intelligent temperature control furnace body is clamped and connected between the clamping plates. A sample warehouse tube is installed in the intelligent temperature control furnace body, and a closing cover is detachably connected to the upper and lower end walls of the sample warehouse tube, and the connecting threaded tube is fixedly connected to the closing cover, and the connecting threaded tube is communicated with the inside of the sample warehouse tube.

[0009] Preferably, the vibration mechanism includes a vibration gear cavity provided in the cylinder, a vibration driving gear shaft is rotatably connected between the end walls of the vibration gear cavity, the vibration driving gear shaft is connected to the vibration motor power fixedly installed in the cylinder, a vibration driving gear is fixedly connected to the outer surface of the vibration driving gear shaft, the vibration driving gear is meshed with a vibration annular rack, the vibration annular rack is rotatably connected between the end walls of the vibration gear cavity, the vibration annular rack is meshed with a plurality of vibration driven gears, the vibration driven gears are fixedly installed on the vibration shaft, the vibration shaft passes through and rotates between the end walls of the vibration gear cavity, and the vibration shaft extends to the inner side of the cylinder on the upper side of the vibration gear cavity, a plurality of vibration spring rods are fixedly connected to the outer surface of the vibration shaft, and a vibration ball is universally hinged at the end of the vibration spring rod.

[0010] Preferably, the simulated injection mechanism includes a vacuum pump, an oil injection pump and a high-pressure gas cylinder fixedly installed on the base plate, and a control valve is fixedly installed on the vacuum pump, the oil injection pump and the high-pressure gas cylinder, and the control valve is connected to an injection pipe, and the end of the injection pipe is connected to a multi-way valve, and different injection pipes are connected to different channel ports of the multi-way valve, and the multi-way valve is connected to a multi-way pipe, and different outlets of the multi-way pipe are connected to the injection control valve, and the injection control valve is fixedly connected to an injection regulating block, and an injection butt pipe is rotatably connected to the injection regulating block, and one end of the injection butt pipe is rotatably connected to the injection control valve, and the other end of the injection butt pipe is fixedly connected to an injection butt threaded pipe, and the multi-way valve is connected to a pressure relief valve.

[0011] Preferably, the injection docking mechanism includes an injection movable groove provided on the base plate, an injection movable screw rod is rotatably connected between the end walls of the injection movable groove, the injection movable screw rod is connected to the mobile motor power fixedly installed in the base plate, the outer surface of the injection movable screw rod is threadedly connected to an injection movable nut block slidably connected in the injection movable groove, an injection movable frame is fixedly connected to the upper part of the injection movable nut block, a plurality of injection adjustment grooves are provided on the injection movable frame, injection adjustment slide grooves are symmetrically provided on the end walls of the injection adjustment slide grooves, an injection adjustment electric screw rod is rotatably connected between the end walls of the injection adjustment slide grooves, and the injection adjustment electric screw rod is The outer surface of the rod is threadedly connected with an injection docking adjustment nut block that is slidably connected between the end walls of the injection adjustment slot, the injection adjustment block is fixedly connected between the injection docking adjustment nut blocks, an injection docking gear cavity is provided in the injection adjustment block, an injection docking driving gear shaft is rotatably connected between the end walls of the injection docking gear cavity, the injection docking driving gear shaft is connected to the injection docking motor power fixedly installed on the injection adjustment block, an injection docking driving gear is fixedly connected to the outer surface of the injection docking driving gear shaft, the injection docking driving gear is meshed with the injection docking driven gear, and the injection docking driven gear is fixedly installed on the outer surface of the injection docking tube.

[0012] Preferably, the collection and docking mechanism includes a collection moving groove provided on the bottom plate, a collection moving screw rod being rotatably connected between the end walls of the collection moving groove, the collection moving screw rod being connected to the mobile motor power, the outer surface of the collection moving screw rod being threadedly connected to a collection moving nut block being slidably connected between the end walls of the collection moving groove, the upper part of the collection moving nut block being fixedly connected to a collection moving frame, the collection moving frame being provided with a plurality of collection adjusting grooves, the end walls of the collection adjusting groove being symmetrically provided with collection adjusting slide grooves, the end walls of the collection adjusting slide groove being rotatably connected with a collection adjusting electric screw rod, the outer surface of the collection adjusting electric screw rod being threadedly connected to a collection docking adjustment nut block being slidably connected between the end walls of the collection adjusting slide groove, A collection adjustment block is fixedly connected between the collection docking adjustment nut blocks, a collection docking gear cavity is provided in the collection adjustment block, a collection docking driving gear shaft is rotatably connected between the end walls of the collection docking gear cavity, the collection docking driving gear shaft is connected to the power of the collection motor fixedly installed in the collection adjustment block, a collection docking driving gear is fixedly connected to the outer surface of the collection docking driving gear shaft, the collection docking driving gear is meshed with the collection docking driven gear, the collection docking driven gear is fixedly installed on the outer surface of the collection docking pipe, the collection docking pipe is rotatably installed on the collection adjustment block, one end of the collection docking pipe is rotatably connected to the collection control valve, and the other end of the collection docking pipe is fixedly connected to a collection threaded docking joint.

[0013] Preferably, the simulation collection mechanism includes a mounting plate fixedly connected to the collection and adjustment block, a support rod is symmetrically fixedly connected to the upper part of the mounting plate, a gas collector is fixedly connected to the upper end of the support rod, a discharge pipe is connected to the gas collector, a discharge valve is connected to the end of the discharge pipe, an input pipe is on the gas collector, the end of the input pipe is fixedly connected to the liquid collector away from the gas collector, the liquid collector is fixedly connected to the mounting plate, an inlet pipe is connected to the liquid collector, the end of the inlet pipe is connected to a connecting valve away from the liquid collector, a quartz collector is connected between the connecting valve and the collection control valve, and the collection control valve is fixedly mounted on the end wall of the collection and adjustment block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions. By filling various types of lithology rocks in parallel, the migration and fractionation effects of oil and gas in different rock formations can be synchronously simulated.

[0016] 2. The present invention provides an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions, and realizes the full-component collection of oil, gas and water after migration and fractionation through a multi-fluid quantitative collector.

[0017] 3. The present invention provides an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions. By accurately controlling the temperature and pressure of the simulation system, the heterogeneous migration and fractionation effect of oil and gas under different geological environments can be simulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the first direction structure of an experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions in the present invention;

[0021] Figure 2 A schematic diagram of the second direction structure of an experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions in the present invention;

[0022] Figure 3 It is a schematic diagram of the third direction structure of an experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions in the present invention;

[0023] Figure 4It is a schematic diagram of the structure in the fourth direction of an experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions in the present invention;

[0024] Figure 5 A fifth structural schematic diagram of an experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions in the present invention;

[0025] Figure 6 A schematic diagram of the disassembled structure of an experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions in the present invention;

[0026] Figure 7 It is a schematic diagram of the combined structure of the simulated injection mechanism, the injection docking mechanism, the simulated collection mechanism and the collection docking mechanism in the present invention;

[0027] Figure 8 It is a schematic diagram of a first partial cross-sectional structure of the combination of the simulated injection mechanism, the injection docking mechanism, the simulated collection mechanism and the collection docking mechanism in the present invention;

[0028] Fig. 9 It is a second partial cross-sectional structural schematic diagram of the combination of the simulated injection mechanism, the injection docking mechanism, the simulated collection mechanism and the collection docking mechanism in the present invention;

[0029] Fig.10 It is a cross-sectional structural schematic diagram of the combination of the height adjustment mechanism, the angle adjustment mechanism, the connection adjustment mechanism, the clamping mechanism and the vibration mechanism in the present invention;

[0030] Fig.11 It is a schematic diagram of a first partial structure of the combination of the connection adjustment mechanism, the clamping mechanism and the vibration mechanism in the present invention;

[0031] Fig.12 A second partial structural diagram of the combination of the connection adjustment mechanism, the clamping mechanism and the vibration mechanism in the present invention;

[0032] Fig.13 It is a schematic diagram of a third partial structure of the combination of the connection adjustment mechanism, the clamping mechanism and the vibration mechanism in the present invention;

[0033] Fig.14 for Fig.10 A schematic diagram of the enlarged structure at A in the middle;

[0034] Fig.15 for Fig.10 Schematic diagram of the enlarged structure at point B in the middle.

[0035] In the figure: 1-bottom plate, 2-vacuum pump, 3-control valve, 4-oil injection pump, 5-injection pipe, 6-multi-way valve, 7-multi-way pipe, 8-injection mobile frame, 9-injection adjustment groove, 10-injection butt pipe, 11-injection butt threaded pipe, 12-rotating frame, 13-butt perforation, 14-cylinder, 15-annular frame, 16-fixed plate, 17-collection mobile frame, 18-collection threaded butt joint, 19-collection adjustment block, 20-collection control valve, 21-quartz collector, 22-gas collector, 23-support rod, 24-mounting plate, 25-liquid collector, 26-connecting valve, 27-collection adjustment groove, 28-collection mobile groove, 29-stable connecting plate, 30 -Lifting plate, 31-injection moving groove, 32-injection adjustment block, 33-injection control valve, 34-collection docking tube, 35-injection adjustment electric screw, 36-lifting screw, 37-injection adjustment slide, 38-collection adjustment slide, 39-collection adjustment electric screw, 40-connection adjustment nut block, 41-connection adjustment slide, 42-connection rotating rod, 43-connection adjustment screw, 44-fixed cylinder, 45-connection thread head, 46-connection threaded tube, 47-sample warehouse tube, 49-high pressure gas cylinder, 50-injection moving screw, 51-collection moving screw, 52-injection moving nut block, 53-collection moving nut block, 48-lifting nut block, 55-angle Adjustment block, 54-collection docking gear cavity, 100-collection docking driven gear, 56-collection docking driving gear shaft, 57-collection docking driving gear, 58-injection docking driving gear, 59-injection docking driving gear shaft, 60-injection docking driven gear, 61-injection docking gear cavity, 62-collection docking adjustment nut block, 63-injection docking adjustment nut block, 101-angle adjustment gear cavity, 64-angle adjustment driving gear, 65-angle adjustment driving gear shaft, 66-angle adjustment driven gear, 67-clamping plate, 68-angle adjustment shaft, 69-worm cavity, 70-worm, 71-worm shaft, 72-closing cover, 73-worm wheel, 74-system Moving gear, 75-braking electric push rod, 76-clamping threaded cylinder, 77-clamping annular rack, 78-clamping screw rod, 79-vibration shaft, 80-vibration spring rod, 81-vibration ball, 82-vibration annular rack, 83-vibration driven gear, 84-vibration driving gear, 85-vibration driving gear shaft, 86-adsorption ring, 87-electromagnet, 88-connecting annular rack, 89-connecting gear, 90-connecting gear shaft, 91-connecting hose, 92-connecting hose fixing ring, 93-connecting gear cavity, 94-vibration gear cavity, 95-clamping cavity, 96-clamping driving gear, 97-clamping driving gear shaft, 98-clamping driven gear, 99-intelligent temperature control furnace body. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] like Figure 1-15 As shown, the present invention provides an experimental device for simulating the heterogeneous migration and fractionation of oil and gas under geological conditions, comprising a bottom plate 1, the bottom plate 1 is provided with a height adjustment mechanism, the height adjustment mechanism is used to adjust the height of the simulation warehouse pipe, the height adjustment mechanism is connected to an angle adjustment mechanism, the angle adjustment mechanism is used to adjust the angle of a rotating frame 12, the rotating frame 12 is provided with a connection adjustment mechanism, the connection adjustment mechanism is used to adjust the connection relationship between the warehouse pipes, the connection adjustment mechanism is connected to a clamping mechanism, the clamping mechanism is used to clamp the reaction warehouse pipe, the connection adjustment mechanism The whole mechanism is connected with a vibration mechanism, which is used to vibrate the reaction warehouse pipe to simulate the vibration during transportation. The bottom plate 1 is provided with a simulation injection mechanism, which is used to inject corresponding materials during simulation. The simulation injection mechanism is connected with an injection docking mechanism, which is used to dock during injection. The bottom plate 1 is provided with a simulation collection mechanism, which is used to collect the products after distillation during simulation. The simulation collection mechanism is connected with a collection docking mechanism, which is used to make the simulation collection symmetrical for easy collection.

[0038] Advantageously, the connection adjustment mechanism includes a connection adjustment slot 41 uniformly provided on the rotating frame 12, a connection adjustment screw 43 is rotatably connected between the end walls of the connection adjustment slot 41, the connection adjustment screw 43 is connected to the lifting motor power fixedly installed in the rotating frame 12, the outer surface of the connection adjustment screw 43 is threadedly connected with a connection adjustment nut block 40, the connection adjustment nut block 40 is slidably connected between the end walls of the connection adjustment slot 41, a worm cavity 69 is provided in the connection adjustment nut block 40, a worm shaft 71 is rotatably connected between the end walls of the worm cavity 69, the worm shaft 71 is connected to the adjustment motor power fixedly installed in the connection adjustment nut block 40, a worm 70 is fixedly installed on the outer surface of the worm shaft 71, the worm 70 is meshed with a worm wheel 73, the worm wheel 73 is fixedly installed on the outer surface of the connection rotation rod 42, the connection rotation rod 42 penetrates and is rotatably installed on the end wall of the worm cavity 69, the end of the connection rotation rod 42 is fixedly connected with a cylinder 14, the rotation between the cylinder 14 A fixed plate 16 is fixedly connected to the moving frame 12, and a fixed cylinder 44 is fixedly connected to the fixed plate 16. A connecting gear cavity 93 is symmetrically arranged in the fixed cylinder 44. A connecting gear shaft 90 is rotatably connected between the end walls of the connecting gear cavity 93. The connecting gear shaft 90 is connected to the power of a connecting motor fixedly installed in the fixed cylinder 44. A connecting gear 89 is fixedly connected to the outer surface of the connecting gear shaft 90. The connecting gear 89 meshes with a connecting annular rack 88. The connecting annular rack 88 is rotatably connected to the fixed cylinder 44. An electromagnet 87 is fixedly connected to the connecting annular rack 88. An adsorption ring 86 is adsorbed and connected to the outer surface of the electromagnet 87. A connecting thread head 45 is fixedly connected to the adsorption ring 86. The connecting thread head 45 is threadedly connected to the connecting threaded pipe 46. The connecting thread head 45 is rotatably connected to a connecting hose 91. The connecting hose 91 is connected to the fixed cylinder 44 through a connecting hose fixing ring 92. The connecting hose 91 is contracted in a connecting channel provided in the fixed cylinder 44.

[0039] During operation, the whole is simulated in series, the lifting motor is started, thereby driving the connection adjustment screw rod 43 to rotate, thereby driving the connection adjustment nut block 40 to move, thereby driving the connection rotation rod 42 to move, thereby driving the intelligent temperature control furnace body 99 to move, thereby driving the sample warehouse tube 47 to move, thereby driving the connection threaded tube 46 to move closer to the connection threaded head 45, starting the connection motor, thereby driving the connection gear shaft 90 to rotate, thereby driving the connection gear 89 to rotate, thereby driving the connection annular rack 88 to rotate, thereby driving the electromagnet 87 to rotate, thereby driving the adsorption ring 86 to rotate, thereby driving the connection threaded head 45 to rotate and threadedly connect with the connection threaded tube 46. After the threaded connection, the electromagnet 87 loses power, thereby the adsorption ring 86 is no longer adsorbed, and the lifting motor moves to the sample warehouse tube 47 to reset. When resetting, the connection threaded head 45 is pulled to move The adsorption ring 86 is moved, thereby pulling the connecting hose 91 to move and extend, thereby realizing the series connection between the sample storage tubes 47, and the adjustment motor is started to drive the worm shaft 71 to rotate, thereby driving the worm 70 to rotate, and the worm 70 is engaged with the worm wheel 73, thereby driving the connecting rotating rod 42 to rotate, thereby driving the cylinder 14 to rotate, thereby driving the sample storage tube 47 to different angles, so that each of the sample storage tubes 47 is at a different angle, which is convenient for simulating different flow directions at different depths and angles, and improving the efficiency of the simulation. During parallel simulation, the adjustment motor is started to drive the worm shaft 71 to rotate, thereby driving the worm 70 to rotate, and the worm 70 is engaged with the worm wheel 73, thereby driving the connecting rotating rod 42 to rotate, thereby driving the cylinder 14 to rotate, thereby driving the sample storage tube 47 to a horizontal direction, thereby realizing series simulation.

[0040] Advantageously, the height adjustment mechanism comprises a lifting plate 30 symmetrically fixedly connected to the bottom plate 1, a lifting screw 36 is rotatably connected to the lifting plate 30, the lifting screw 36 is connected to the power of the height adjustment motor fixedly installed on the lifting plate 30, the outer surface of the lifting screw 36 is threadedly connected to a lifting nut block 48 slidably connected to the lifting plate 30, an angle adjustment block 55 is fixedly connected to the end wall of the lifting nut block 48, the angle adjustment block 55 is slidably connected to the lifting plate 30, one end of a stabilizing connecting plate 29 is fixedly connected to the lifting plate 30, and the other end of the stabilizing connecting plate 29 is fixedly connected to the bottom plate 1;

[0041] During operation, the height adjustment motor is started to drive the lifting screw rod 36 to rotate, thereby driving the lifting nut block 48 to move, thereby driving the angle adjustment block 55 to move, and adjusting the height of the angle adjustment block 55, thereby achieving the height adjustment of the rotating frame 12.

[0042] Advantageously, the angle adjustment mechanism includes an angle adjustment gear chamber 101 provided in the angle adjustment block 55, an angle adjustment shaft 68 is rotatably connected between the end walls of the angle adjustment gear chamber 101, the angle adjustment shaft 68 extends outside the angle adjustment block 55, the end of the angle adjustment shaft 68 is fixedly connected to the rotating frame 12, the outer surface of the angle adjustment shaft 68 is fixedly connected to the angle adjustment driven gear 66, and the end wall of the angle adjustment gear chamber 101 on one side is rotatably connected to the angle adjustment driving gear shaft 65, the angle adjustment driving gear shaft 65 is connected to the angle adjustment motor fixedly installed in the angle adjustment block 55 Power connection, the outer surface of the angle adjustment driving gear shaft 65 is fixedly connected with an angle adjustment driving gear 64, and the angle adjustment driving gear 64 is meshed with the angle adjustment driven gear 66. A brake electric push rod 75 is fixedly connected to the end wall of the angle adjustment gear cavity 101 on the other side, and a brake tooth 74 is fixedly connected to the end of the brake electric push rod 75, and the brake tooth 74 is meshed with the angle adjustment driven gear 66. The rotating frame 12 is symmetrically provided with docking through holes 13, and the angle adjustment block 55 is rotatably connected with a stabilizing ring, and a stabilizing plate is symmetrically fixedly connected to the stabilizing ring, and the stabilizing plate is fixedly connected to the rotating frame 12;

[0043] During operation, the angle adjustment motor is started to drive the angle adjustment driving gear shaft 65 to rotate, thereby driving the angle adjustment driving gear 64 to rotate, and the angle adjustment driving gear 64 is meshed with the angle adjustment driven gear 66, thereby driving the angle adjustment shaft 68 to rotate, thereby driving the rotating frame 12 to rotate. After rotating to the horizontal direction, the brake electric push rod 75 is energized to push the brake tooth 74 to move and mesh with the angle adjustment driven gear 66 for braking, thereby making the rotating frame 12 in the horizontal direction, which is convenient for the overall horizontal series simulation.

[0044] Advantageously, the clamping mechanism comprises an annular frame 15 symmetrically fixedly connected to the cylinder 14, a clamping cavity 95 is provided in the annular frame 15, a clamping driving gear shaft 97 is rotatably connected to the end wall of the clamping cavity 95, the clamping driving gear shaft 97 is connected to the clamping motor power fixedly installed in the annular frame 15, a clamping driving gear 96 is fixedly connected to the end of the clamping driving gear shaft 97, the clamping driving gear 96 is meshed with a clamping annular rack 77, the clamping annular rack 77 is rotatably installed between the end walls of the clamping cavity 95, the clamping annular rack 77 is meshed with a plurality of clamping driven gears 98, the clamping driven gears 98 are fixedly installed on the clamping cavity 95. The outer surface of the clamping screw 78 is rotatably mounted on the end wall of the clamping cavity 95. The outer surface of the clamping screw 78 is threadedly connected with a clamping threaded tube 76. The clamping threaded tube 76 penetrates and is slidably connected to the end wall of the clamping cavity 95. The end of the clamping threaded tube 76 is fixedly connected with a clamping plate 67. An intelligent temperature-controlled furnace body 99 is clamped and connected between the clamping plates 67. A sample bin tube 47 is installed in the intelligent temperature-controlled furnace body 99. The upper and lower end walls of the sample bin tube 47 are detachably connected with a closing cover 72. The closing cover 72 is fixedly connected with the connecting threaded tube 46. The connecting threaded tube 46 is communicated with the inside of the sample bin tube 47.

[0045] During operation, the corresponding core material is added to the sample storage tube 47, the ports on both sides of the sample storage tube 47 are closed by the closing cover 72, the sample storage tube 47 is installed in the intelligent temperature control furnace body 99, the intelligent temperature control furnace body 99 is installed on the cylinder 14, and the clamping motor is started to drive the clamping driving gear shaft 97 to rotate, thereby driving the clamping driving gear 96 to rotate, and the clamping driving gear 96 is meshed with the clamping annular rack 77, so that The clamping annular rack 77 is driven to rotate, and the clamping annular rack 77 is meshed with the clamping driven gear 98, thereby driving the clamping screw 78 to rotate, and the clamping screw 78 is threadedly connected with the clamping threaded cylinder 76, thereby pushing the clamping threaded cylinder 76 to move, thereby pushing the clamping plate 67 to move, so that the clamping plate 67 clamps the intelligent temperature control furnace body 99, so that the intelligent temperature control furnace body 99 heats the sample chamber tube 47 and controls the temperature for a period of time.

[0046] Advantageously, the vibration mechanism includes a vibration gear cavity 94 provided in the cylinder 14, a vibration driving gear shaft 85 is rotatably connected between the end walls of the vibration gear cavity 94, the vibration driving gear shaft 85 is connected to the vibration motor power fixedly installed in the cylinder 14, a vibration driving gear 84 is fixedly connected to the outer surface of the vibration driving gear shaft 85, the vibration driving gear 84 is meshed with a vibration annular rack 82, the vibration annular rack 82 is rotatably connected between the end walls of the vibration gear cavity 94, the vibration annular rack 82 is meshed with a plurality of vibration driven gears 83, the vibration driven gear 83 is fixedly installed on a vibration shaft 79, the vibration shaft 79 penetrates and rotates between the end walls of the vibration gear cavity 94, and the vibration shaft 79 extends to the inner side of the cylinder 14 on the upper side of the vibration gear cavity 94, a plurality of vibration spring rods 80 are fixedly connected to the outer surface of the vibration shaft 79, and a vibration ball 81 is universally hinged at the end of the vibration spring rod 80;

[0047] During operation, the vibration motor is started to drive the vibration driving gear shaft 85 to rotate, thereby driving the vibration driving gear 84 to rotate, the vibration driving gear 84 is meshed with the vibration annular rack 82, thereby driving the vibration annular rack 82 to rotate, the vibration annular rack 82 is meshed with the vibration driven gear 83, thereby driving the vibration shaft 79 to rotate, thereby driving the vibration spring rod 80 to rotate, thereby driving the vibration ball 81 to move and knock on the surface of the intelligent temperature control furnace body 99 to generate vibration, thereby simulating the vibration of rocks in the earth's crust.

[0048] Advantageously, the simulated injection mechanism comprises a vacuum pump 2, an oil injection pump 4 and a high-pressure gas cylinder 49 fixedly mounted on the base plate 1, the vacuum pump 2, the oil injection pump 4 and the high-pressure gas cylinder 49 are all fixedly mounted with a control valve 3, the control valve 3 is connected with an injection pipe 5, the ends of the injection pipe 5 are connected with a multi-way valve 6, and different injection pipes 5 are connected with different channel ports of the multi-way valve 6, the multi-way valve 6 is connected with a multi-way pipe 7, different outlets of the multi-way pipe 7 are connected with an injection control valve 33, the injection control valve 33 is fixedly connected to an injection regulating block 32, an injection butt pipe 10 is rotatably connected to the injection regulating block 32, one end of the injection butt pipe 10 is rotatably connected to the injection control valve 33, the other end of the injection butt pipe 10 is fixedly connected with an injection butt threaded pipe 11, and the multi-way valve 6 is connected with a pressure relief valve;

[0049] During operation, after the injection docking, the control valve 3 and the injection control valve 33 are opened, and the vacuum pump 2 is started to evacuate the sample warehouse tube 47, so that the gas in the sample warehouse tube 47 enters the injection docking threaded tube 11 through the connecting threaded tube 46, flows through the injection docking tube 10, passes through the injection control valve 33, passes through the multi-way tube 7, passes through the multi-way valve 6, and is finally discharged through the vacuum pump 2. The oil injection pump 4 is turned on to introduce the petroleum sample into the sample warehouse tube 47, so that the oil passes through the injection pipe 5, passes through the multi-way valve 6, enters the multi-way tube 7, passes through the injection docking threaded tube 11, and finally enters the sample warehouse tube 47. After the oil is introduced, the high-pressure gas cylinder 49 is started to inject high-pressure gas into the sample warehouse tube 47 to facilitate the movement of oil in the rock sample.

[0050] Advantageously, the injection docking mechanism includes an injection movable groove 31 provided on the base plate 1, an injection movable screw rod 50 is rotatably connected between the end walls of the injection movable groove 31, the injection movable screw rod 50 is connected to the mobile motor power fixedly installed in the base plate 1, the outer surface of the injection movable screw rod 50 is threadedly connected to an injection movable nut block 52 slidably connected in the injection movable groove 31, the upper part of the injection movable nut block 52 is fixedly connected to an injection movable frame 8, the injection movable frame 8 is provided with a plurality of injection adjustment grooves 9, the end walls of the injection adjustment groove 9 are symmetrically provided with injection adjustment slide grooves 37, the end walls of the injection adjustment slide groove 37 are rotatably connected with an injection adjustment electric screw rod 35, the injection adjustment electric screw rod 35 The outer surface is threadedly connected with an injection docking adjustment nut block 63 that is slidably connected between the end walls of the injection adjustment chute 37, and the injection adjustment block 32 is fixedly connected between the injection docking adjustment nut blocks 63. The injection adjustment block 32 is provided with an injection docking gear cavity 61, and an injection docking driving gear shaft 59 is rotatably connected between the end walls of the injection docking gear cavity 61. The injection docking driving gear shaft 59 is connected to the injection docking motor power fixedly installed on the injection adjustment block 32, and the outer surface of the injection docking driving gear shaft 59 is fixedly connected with an injection docking driving gear 58, and the injection docking driving gear 58 is meshed with an injection docking driven gear 60, and the injection docking driven gear 60 is fixedly installed on the outer surface of the injection docking pipe 10;

[0051] During operation, the moving motor is started to drive the injection moving screw 50 to rotate, thereby driving the injection moving nut block 52 to move, thereby driving the injection moving frame 8 to move, and at the same time, the injection adjustment electric screw 35 is rotated, thereby driving the injection docking adjustment nut block 63 to move, thereby driving the injection adjustment block 32 to move and adjust the height of the injection adjustment block 32 to a suitable position, and the injection docking motor is started to drive the injection docking active gear shaft 59 to rotate, thereby driving the injection docking active gear 58 to rotate, and the injection docking active gear 58 is meshed with the injection docking driven gear 60, thereby driving the injection docking tube 10 to rotate, thereby driving the injection docking threaded tube 11 to rotate and threadedly connect with the connecting threaded tube 46, thereby achieving docking.

[0052] Advantageously, the collection docking mechanism includes a collection moving groove 28 provided on the base plate 1, a collection moving screw 51 is rotatably connected between the end walls of the collection moving groove 28, the collection moving screw 51 is connected to the mobile motor power, the outer surface of the collection moving screw 51 is threadedly connected to a collection moving nut block 53 that is slidably connected between the end walls of the collection moving groove 28, the upper part of the collection moving nut block 53 is fixedly connected to a collection moving frame 17, the collection moving frame 17 is provided with a plurality of collection adjustment grooves 27, the end walls of the collection adjustment groove 27 are symmetrically provided with collection adjustment slides 38, the end walls of the collection adjustment slides 38 are rotatably connected with a collection adjustment electric screw 39, the outer surface of the collection adjustment electric screw 39 is threadedly connected to a collection docking adjustment nut block 62 that is slidably connected between the end walls of the collection adjustment slides 38, the collection pair A collection adjustment block 19 is fixedly connected between the adjusting nut block 62, and a collection docking gear chamber 54 is provided in the collection adjustment block 19. A collection docking driving gear shaft 56 is rotatably connected between the end walls of the collection docking gear chamber 54. The collection docking driving gear shaft 56 is connected to the power of a collection motor fixedly installed in the collection adjustment block 19. A collection docking driving gear 57 is fixedly connected to the outer surface of the collection docking driving gear shaft 56. The collection docking driving gear 57 is meshed with a collection docking driven gear 100. The collection docking driven gear 100 is fixedly installed on the outer surface of the collection docking pipe 34. The collection docking pipe 34 is rotatably installed on the collection adjustment block 19. One end of the collection docking pipe 34 is rotatably connected to the collection control valve 20, and the other end of the collection docking pipe 34 is fixedly connected to a collection threaded docking joint 18;

[0053] During operation, the collection motor moves, thereby driving the collection moving screw rod 51 to rotate, thereby driving the collection moving nut block 53 to move, thereby driving the collection moving frame 17 to move, and at the same time making the collection adjustment electric screw rod 39 rotate, thereby driving the collection docking adjustment nut block 62 to move, thereby driving the collection adjustment block 19 to move to a suitable height, and starting the collection motor to drive the collection docking driving gear shaft 56 to rotate, thereby driving the collection docking driving gear 57 to rotate, and the collection docking driving gear 57 is engaged with the collection docking driven gear 100, thereby driving the collection docking tube 34 to rotate, thereby driving the collection threaded docking joint 18 to be threadedly connected with the connecting threaded tube 46, thereby realizing the connection.

[0054] Advantageously, the simulated collection mechanism comprises a mounting plate 24 fixedly connected to the collection and adjustment block 19, a support rod 23 is symmetrically fixedly connected to the upper part of the mounting plate 24, a gas collector 22 is fixedly connected to the upper end of the support rod 23, a discharge pipe is connected to the gas collector 22, a discharge valve is connected to the end of the discharge pipe, an input pipe is provided on the gas collector 22, the end of the input pipe away from the gas collector 22 is fixedly connected to a liquid collector 25, the liquid collector 25 is fixedly connected to the mounting plate 24, an inlet pipe is connected to the liquid collector 25, the end of the inlet pipe away from the liquid collector 25 is connected to a connecting valve 26, a quartz collector 21 is connected between the connecting valve 26 and the collection control valve 20, and the collection control valve 20 is fixedly installed on the end wall of the collection and adjustment block 19;

[0055] During operation, the collection control valve 20 and the connecting valve 26 are opened, and the product after simulated migration passes through the collection control valve 20 and enters the quartz collector 21 for collection, and the gas and liquid pass through the connecting valve 26 and enter the liquid collector 25 and the gas collector 22, and are collected after being processed by the gas collector 22 and the liquid collector 25.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions, characterized by: The invention comprises a bottom plate (1), wherein a height adjustment mechanism is provided on the bottom plate (1), wherein the height adjustment mechanism is used to adjust the height of the simulation warehouse tube, wherein the height adjustment mechanism is connected to an angle adjustment mechanism, wherein the angle adjustment mechanism is used to adjust the angle of the rotating frame (12), wherein a connection adjustment mechanism is provided on the rotating frame (12), wherein the connection adjustment mechanism is used to adjust the connection relationship between the warehouse tubes, wherein a clamping mechanism is connected to the connection adjustment mechanism, wherein the clamping mechanism is used to clamp the reaction warehouse tube, wherein a vibration mechanism is connected to the connection adjustment mechanism, wherein the vibration mechanism is used to vibrate the reaction warehouse tube to facilitate the vibration during the simulation of transport, wherein a simulation injection mechanism is provided on the bottom plate (1), wherein the simulation injection mechanism is used to inject corresponding materials during the simulation, wherein the simulation injection mechanism is connected to an injection docking mechanism, wherein the injection docking mechanism is used to dock during the injection, wherein a simulation collection mechanism is provided on the bottom plate (1), wherein the simulation collection mechanism is used to collect the product after fractionation during the simulation, wherein the simulation collection mechanism is connected to a collection docking mechanism, wherein the collection docking mechanism is used to dock during the simulation of collection, thereby facilitating the collection; The connection adjustment mechanism comprises connection adjustment slots (41) uniformly arranged on the rotating frame (12); a connection adjustment screw rod (43) is rotatably connected between the end walls of the connection adjustment slots (41); the connection adjustment screw rod (43) is connected to the lifting motor power fixedly installed in the rotating frame (12); a connection adjustment nut block (40) is threadedly connected to the outer surface of the connection adjustment screw rod (43); the connection adjustment nut block (40) is slidably connected between the end walls of the connection adjustment slots (41); a worm cavity (69) is arranged in the connection adjustment nut block (40); the worm cavity (69) A worm shaft (71) is rotatably connected between the end walls of the worm cavity (69), the worm shaft (71) is connected to the power of the adjustment motor fixedly installed in the connection adjustment nut block (40), a worm (70) is fixedly installed on the outer surface of the worm shaft (71), the worm (70) is meshed with a worm wheel (73), the worm wheel (73) is fixedly installed on the outer surface of the connection rotation rod (42), the connection rotation rod (42) penetrates and is rotatably installed on the end wall of the worm cavity (69), the end of the connection rotation rod (42) is fixedly connected to a cylinder (14), and the rotating frame (12) between the cylinders (14) is ) is fixedly connected to a fixing plate (16), a fixing cylinder (44) is fixedly connected to the fixing plate (16), a connecting gear cavity (93) is symmetrically arranged in the fixing cylinder (44), a connecting gear shaft (90) is rotatably connected between the end walls of the connecting gear cavity (93), the connecting gear shaft (90) is connected to a connecting motor power fixedly installed in the fixing cylinder (44), a connecting gear (89) is fixedly connected to the outer surface of the connecting gear shaft (90), the connecting gear (89) is meshed with a connecting annular rack (88), and the connecting annular rack (88) is rotatably connected to the fixing cylinder (44). The connecting ring rack (88) is fixedly connected to an electromagnet (87) on the cylinder (44), an adsorption ring (86) is adsorbed and connected to the outer surface of the electromagnet (87), a connecting thread head (45) is fixedly connected to the adsorption ring (86), the connecting thread head (45) is threadedly connected to the connecting thread pipe (46), the connecting thread head (45) is rotatably connected to a connecting hose (91), the connecting hose (91) is connected to the fixed cylinder (44) through a connecting hose fixing ring (92), and the connecting hose (91) is contracted in a connecting channel provided in the fixed cylinder (44).

2. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 1, characterized in that: The height adjustment mechanism comprises a lifting plate (30) symmetrically fixedly connected to the base plate (1); a lifting screw (36) is rotatably connected to the lifting plate (30); the lifting screw (36) is connected to the height adjustment motor fixedly installed on the lifting plate (30); a lifting nut block (48) is threadedly connected to the outer surface of the lifting screw (36) and is slidably connected to the lifting plate (30); an angle adjustment block (55) is fixedly connected to the end wall of the lifting nut block (48); the angle adjustment block (55) is slidably connected to the lifting plate (30); one end of a stabilizing connecting plate (29) is fixedly connected to the lifting plate (30); the other end of the stabilizing connecting plate (29) is fixedly connected to the base plate (1).

3. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 2, characterized in that: The angle adjustment mechanism comprises an angle adjustment gear chamber (101) provided in the angle adjustment block (55); an angle adjustment shaft (68) is rotatably connected between the end walls of the angle adjustment gear chamber (101); the angle adjustment shaft (68) extends outside the angle adjustment gear chamber (101); the end of the angle adjustment shaft (68) is fixedly connected to the rotating frame (12); the outer surface of the angle adjustment shaft (68) is fixedly connected to an angle adjustment driven gear (66); an angle adjustment driving gear shaft (65) is rotatably connected between the end walls of the angle adjustment gear chamber (101) on one side; the angle adjustment driving gear shaft (65) is rotatably connected to an angle adjustment motor driven gear shaft (65) fixedly installed in the angle adjustment block (55). The angle adjustment driving gear (64) is fixedly connected to the outer surface of the angle adjustment driving gear shaft (65), and the angle adjustment driving gear (64) is meshed with the angle adjustment driven gear (66). A braking electric push rod (75) is fixedly connected to the end wall of the angle adjustment gear cavity (101) on the other side, and a braking tooth (74) is fixedly connected to the end of the braking electric push rod (75), and the braking tooth (74) is meshed with the angle adjustment driven gear (66). The rotating frame (12) is symmetrically provided with docking through holes (13). The angle adjustment block (55) is rotatably connected to a stabilizing ring, and a stabilizing plate is symmetrically fixedly connected to the stabilizing ring, and the stabilizing plate is fixedly connected to the rotating frame (12).

4. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 3, characterized in that: The clamping mechanism comprises an annular frame (15) symmetrically fixedly connected to the cylinder (14), a clamping cavity (95) being arranged in the annular frame (15), a clamping driving gear shaft (97) being rotatably connected to the end wall of the clamping cavity (95), the clamping driving gear shaft (97) being connected to the clamping motor fixedly installed in the annular frame (15), a clamping driving gear (96) being fixedly connected to the end of the clamping driving gear shaft (97), the clamping driving gear (96) being meshed with a clamping annular rack (77), the clamping annular rack (77) being rotatably installed between the end walls of the clamping cavity (95), the clamping annular rack (77) being meshed with a plurality of clamping driven gears (98), the clamping driven gears (98) being fixedly installed on the clamping screw rod. (78) outer surface, the clamping screw (78) is rotatably mounted on the end wall of the clamping cavity (95), the outer surface of the clamping screw (78) is threadedly connected with a clamping threaded tube (76), the clamping threaded tube (76) is slidably connected to the end wall of the clamping cavity (95), the end of the clamping threaded tube (76) is fixedly connected with a clamping plate (67), the clamping plates (67) are clamped and connected with an intelligent temperature control furnace body (99), a sample storage tube (47) is installed in the intelligent temperature control furnace body (99), the upper and lower end walls of the sample storage tube (47) are detachably connected with a closing cover (72), the closing cover (72) is fixedly connected with the connecting threaded tube (46), and the connecting threaded tube (46) is connected to the inside of the sample storage tube (47).

5. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 4, characterized in that: The vibration mechanism comprises a vibration gear chamber (94) provided in the cylinder (14); a vibration driving gear shaft (85) is rotatably connected between the end walls of the vibration gear chamber (94); the vibration driving gear shaft (85) is connected to a vibration motor fixedly installed in the cylinder (14); a vibration driving gear (84) is fixedly connected to the outer surface of the vibration driving gear shaft (85); the vibration driving gear (84) is meshed with a vibration annular rack (82); the vibration annular rack (82) is rotatably connected to the vibration gear chamber (94); ) between the end walls, the vibration annular rack (82) meshes with a plurality of vibration driven gears (83), the vibration driven gears (83) are fixedly mounted on a vibration shaft (79), the vibration shaft (79) penetrates and rotates between the end walls of the vibration gear cavity (94), and the vibration shaft (79) extends to the inner side of the cylinder (14) on the upper side of the vibration gear cavity (94), the outer surface of the vibration shaft (79) is fixedly connected with a plurality of vibration spring rods (80), and the end of the vibration spring rod (80) is universally hinged with a vibration ball (81).

6. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 5, characterized in that: The simulated injection mechanism comprises a vacuum pump (2), an oil injection pump (4) and a high-pressure gas cylinder (49) fixedly mounted on the base plate (1); a control valve (3) is fixedly mounted on the vacuum pump (2), the oil injection pump (4) and the high-pressure gas cylinder (49); an injection pipe (5) is connected to the control valve (3); an end of the injection pipe (5) is connected to a multi-way valve (6); different injection pipes (5) are connected to different channel ports of the multi-way valve (6); and the multi-way valve (6) is connected to a control valve (3). A multi-way pipe (7) is provided, wherein different outlets of the multi-way pipe (7) are connected to an injection control valve (33), the injection control valve (33) is fixedly connected to an injection regulating block (32), an injection butt pipe (10) is rotatably connected to the injection regulating block (32), one end of the injection butt pipe (10) is rotatably connected to the injection control valve (33), and the other end of the injection butt pipe (10) is fixedly connected to an injection butt threaded pipe (11), and a pressure relief valve is connected to the multi-way valve (6).

7. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 6, characterized in that: The injection docking mechanism comprises an injection movable groove (31) provided on the base plate (1), an injection movable screw rod (50) is rotatably connected between the end walls of the injection movable groove (31), the injection movable screw rod (50) is connected to the movable motor power fixedly installed in the base plate (1), the outer surface of the injection movable screw rod (50) is threadedly connected to an injection movable nut block (52) slidably connected in the injection movable groove (31), the upper part of the injection movable nut block (52) is fixedly connected to an injection movable frame (8), the injection movable frame (8) is provided with a plurality of injection adjustment grooves (9), the end walls of the injection adjustment groove (9) are symmetrically provided with injection adjustment slide grooves (37), the end walls of the injection adjustment slide groove (37) are rotatably connected with an injection adjustment electric screw rod (35), the injection adjustment electric screw rod (35) The outer surface is threadedly connected with an injection docking adjustment nut block (63) which is slidably connected between the end walls of the injection adjustment slot (37); the injection adjustment block (32) is fixedly connected between the injection docking adjustment nut blocks (63); an injection docking gear cavity (61) is provided in the injection adjustment block (32); an injection docking driving gear shaft (59) is rotatably connected between the end walls of the injection docking gear cavity (61); the injection docking driving gear shaft (59) is connected to the injection docking motor power fixedly installed on the injection adjustment block (32); an injection docking driving gear (58) is fixedly connected to the outer surface of the injection docking driving gear shaft (59); the injection docking driving gear (58) is meshed with an injection docking driven gear (60); and the injection docking driven gear (60) is fixedly installed on the outer surface of the injection docking pipe (10).

8. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 7, characterized in that: The collecting docking mechanism comprises a collecting movable groove (28) provided on the bottom plate (1), a collecting movable screw rod (51) rotatably connected between the end walls of the collecting movable groove (28), the collecting movable screw rod (51) being connected to the moving motor power, the outer surface of the collecting movable screw rod (51) being threadedly connected with a collecting movable nut block (53) slidably connected between the end walls of the collecting movable groove (28), the upper part of the collecting movable nut block (53) being fixedly connected with a collecting movable frame (17), the collecting movable frame (17) being provided with a plurality of collecting adjustment grooves (27), the end walls of the collecting adjustment groove (27) being symmetrically provided with collecting adjustment slide grooves (38), the end walls of the collecting adjustment slide groove (38) being rotatably connected with a collecting adjustment electric screw rod (39), the outer surface of the collecting adjustment electric screw rod (39) being threadedly connected with a collecting docking adjustment nut block (62) slidably connected between the end walls of the collecting adjustment slide groove (38), the collecting docking adjustment A collection adjustment block (19) is fixedly connected between the nut blocks (62), a collection docking gear chamber (54) is provided in the collection adjustment block (19), a collection docking driving gear shaft (56) is rotatably connected between the end walls of the collection docking gear chamber (54), the collection docking driving gear shaft (56) is connected to the power of a collection motor fixedly installed in the collection adjustment block (19), a collection docking driving gear (57) is fixedly connected to the outer surface of the collection docking driving gear shaft (56), the collection docking driving gear (57) is meshed with a collection docking driven gear (100), the collection docking driven gear (100) is fixedly installed on the outer surface of a collection docking pipe (34), the collection docking pipe (34) is rotatably installed on the collection adjustment block (19), one end of the collection docking pipe (34) is rotatably connected to a collection control valve (20), and the other end of the collection docking pipe (34) is fixedly connected to a collection threaded docking joint (18).

9. The experimental device for simulating heterogeneous migration and fractionation of oil and gas under geological conditions according to claim 8, characterized in that: The simulation collection mechanism comprises a mounting plate (24) fixedly connected to the collection and adjustment block (19); a support rod (23) is symmetrically fixedly connected to the upper part of the mounting plate (24); a gas collector (22) is fixedly connected to the upper end of the support rod (23); a discharge pipe is connected to the gas collector (22); a discharge valve is connected to the end of the discharge pipe; an input pipe is connected to the gas collector (22); the end of the input pipe is fixedly connected to a liquid collector (25) away from the gas collector (22); the liquid collector (25) is fixedly connected to the mounting plate (24); an inlet pipe is connected to the liquid collector (25); the end of the inlet pipe is connected to a connecting valve (26) away from the liquid collector (25); a quartz collector (21) is connected between the connecting valve (26) and the collection control valve (20); the collection control valve (20) is fixedly mounted on the end wall of the collection and adjustment block (19).

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