An experimental device for simulating the migration and fractionation of oil in multi-lithological formations

Abstract

The invention relates to the field of petroleum technology, and discloses an experimental device for simulating the migration and fractionation of petroleum in multi-lithology strata. The device comprises a bottom plate, a lifting mechanism is connected to the bottom plate, the lifting mechanism is used for adjusting the height, and is convenient for rotation and injection, an angle adjustment mechanism is connected to the lifting mechanism, the angle adjustment mechanism is used for adjusting the angle, and is convenient for experimental simulation of multiple angles, an injection mechanism is connected to the bottom plate, the injection mechanism is used for injection during reaction, and compaction is performed during injection, and a plurality of reaction chambers are connected in series to achieve simulation of different lithology strata combinations, and the obtained simulation samples are more representative; by controlling the temperature of different reaction chambers respectively, accurate simulation of the migration and fractionation of petroleum under different burial depth and temperature conditions is achieved; by connecting a collection device to the reaction chamber, end-member oil samples with different fractionation degrees can be obtained under limited lithology strata and temperature conditions.

Description

Technical Field

[0001] The invention belongs to the field of petroleum technology, and in particular relates to an experimental device for simulating the migration and fractionation of petroleum in multi-lithology strata. Background Art

[0002] With the increase of exploration degree, the difficulty of oil exploration is increasing, and it is gradually expanding to deep and ultra-deep areas with more complex geological conditions. Clarifying the migration and distribution of oil in complex geological environments is one of the key issues currently facing oil exploration.

[0003] Under geological conditions, the sedimentary solid organic matter (kerogen) in the source rock undergoes thermal cracking during the burial process under geological thermal stress to generate oil. As the burial depth increases, the oil production rate of the source rock gradually increases, and the generated oil causes the pressure in the source rock to increase, resulting in oil displacement. The oil discharged from the source layer will migrate through various lithological strata to the reservoir to form an accumulation. Since oil contains chemical components of different molecular weights and polarities, and the rocks of different lithologies in the strata have different forces on these chemical components, the oil will produce obvious stratigraphic fractionation effects during the migration and accumulation process. In oil and gas basins, different stratigraphic fractionation effects will affect the migration direction and distance of oil, and are key geological factors controlling the oil accumulation pattern and resource potential. The oil in the reservoir often undergoes a complex migration path, including various lithological strata and their combinations. The rock strata of different lithologies have different fractionation effects on oil migration; at the same time, the geological temperature of strata at different burial depths is different, which will also significantly affect the degree of fractionation during oil migration. Different lithologic combinations and formation temperatures in the oil migration path make it difficult to accurately evaluate the degree of oil migration fractionation under geological conditions. How to obtain end-member oil samples after migration fractionation under limited lithologic formations and temperature conditions is the key to solving this problem. However, there is currently a lack of relevant experimental equipment for this, and there are mainly two difficult problems: first, it is difficult to obtain end-member oil samples after migration fractionation under different formation temperatures in the same rock formation; second, it is difficult to obtain end-member oil samples after migration fractionation of multiple lithologic combinations. In view of this, the research on oil accumulation mechanism and resource evaluation urgently needs to develop an experimental device that simulates the migration fractionation of oil in multiple lithologic formations. Summary of the invention

[0004] 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 migration and fractionation of petroleum in multi-lithology formations, which effectively solves the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an experimental device for simulating the migration and fractionation of oil in multi-lithological formations, comprising a bottom plate, a lifting mechanism connected to the bottom plate, the lifting mechanism is used to adjust the height, which is convenient for rotation and injection, an angle adjustment mechanism is connected to the lifting mechanism, the angle adjustment mechanism is used to adjust the angle, which is convenient for experimental simulation at multiple angles, an injection mechanism is connected to the bottom plate, the injection mechanism is used to inject during reaction and compact during injection, and a simulation mechanism is connected to the angle adjustment mechanism, the simulation mechanism is used to separate and collect oil migration During the process, experiments are carried out on petroleum with different degrees of distillation. The angle adjustment mechanism is connected with a first filling mechanism, which is used to fill corresponding reaction substances when all reaction chambers are connected in series. The angle adjustment mechanism is connected with a second filling mechanism, which is used to add corresponding reaction substances to a single reverse chamber. The angle adjustment mechanism is connected with a direction adjustment mechanism, which is used to adjust the direction of the reaction chamber to facilitate docking and separation with the first filling mechanism and the second filling mechanism. A control mechanism is provided on the bottom plate, which controls the movement process of the entire device.

[0006] Preferably, the simulation mechanism includes a rotating plate, on which a plurality of bevel gear shafts are rotatably connected, the bevel gear shafts are spaced the same, a groove frame is fixedly connected to the upper portion of the bevel gear shaft, an electric rotating shaft is symmetrically rotatably connected to the groove frame, a mounting ring is fixedly connected between the electric rotating shafts, a program-controlled furnace body is installed on the mounting ring, a reaction warehouse tube is installed in the program-controlled furnace body, a closing block is symmetrically fixedly connected to the program-controlled furnace body, a closed electric screw is rotatably connected in the closing block, the closed electric screw is threadedly connected to a nut plate slidably connected in the closing block, a closed electric rotating shaft is rotatably connected at the end of the nut plate, a cover plate is fixedly connected to the outer surface of the closed electric rotating shaft, a diaphragm is fixedly connected to the inner surface of the cover plate, the two cover plates close the ports on both sides of the reaction warehouse tube, one end of a connecting pipe is fixedly connected to the cover plate on one side, and the other end of the connecting pipe The side end is connected with a four-way valve, and the four-way valve is located between the program-controlled furnace body. The four-way valve is fixedly mounted on the upper side end of the mounting rod, and the mounting rod is fixedly mounted on the rotating plate. The four-way valve is fixedly connected with a collecting control valve, and the collecting control valve is connected with one end of a collecting pipe, and the other end of the collecting pipe is fixedly connected with the collecting valve, and the collecting valve is detachably connected to a collecting bottle, and the collecting bottle is detachably connected to a mounting plate, and the mounting plate is fixedly mounted on the side wall of the bottom plate. The four-way valve is fixedly connected with a drain valve, and the four-way valve is fixedly connected with a connecting control valve, and the connecting control valve is fixedly connected with a connecting electric push rod, and the end of the connecting electric push rod is fixedly connected with a connecting head, and the connecting head is plugged into the outer surface of the injection pipe. An elastic sealing material is provided on the inner side of the connecting head, and the injection pipe is fixedly mounted on the cover plate on the other side and is connected with the inside of the reaction warehouse pipe.

[0007] Preferably, the direction adjustment mechanism includes a bevel gear cavity provided in the rotating plate, a worm shaft is rotatably connected between the end walls of the bevel gear cavity, the worm shaft is connected to a power output shaft of a direction adjustment motor fixedly installed in the rotating plate, an active bevel gear is fixedly connected to the outer surface of the worm shaft, the active bevel gear is meshed with the driven bevel gear, the driven bevel gear is fixedly installed at the lower end of the bevel gear shaft, and the bevel gear shaft extends to the upper side of the rotating plate.

[0008] Preferably, the first filling mechanism includes a first injection chute provided on the rotating plate, a first injection screw is rotatably connected between the end walls of the first injection chute, the first injection screw is fixedly connected to the end of the worm shaft, a first injection nut block is threadedly connected to the outer surface of the first injection screw, the first injection nut block is slidably connected to the first injection slider, the first injection slider is slidably installed between the end walls of the first injection chute, a first injection spring is clamped between the first injection nut block and the inner end wall of the first injection slider, the upper part of the first injection slider is fixedly connected to the first connecting rod, the upper end of the first connecting rod is fixedly connected to the first five-way valve, the first five-way A first injection valve is fixedly connected to the valve, a first injection fixed tube is fixedly connected to the end wall of the first injection valve, a first injection head is fixedly connected to the end of the first injection fixed tube, an elastic sealing material is provided on the inner surface of the first injection head, the first injection head is inserted into the outer surface of the injection tube, a plurality of first control valves are connected to the first five-way valve, one end of a hose is connected to the first control valve, the other end of the hose is connected to a three-way valve, each of the three-way valves is fixedly connected to a high-pressure oil pump, a high-pressure gas cylinder, a high-pressure water pump, and a vacuum pump, respectively, and the high-pressure oil pump, the high-pressure gas cylinder, the high-pressure water pump, and the vacuum pump are fixedly mounted on the base plate.

[0009] Preferably, the second filling mechanism includes a second injection chute provided on the rotating plate, a second injection screw is rotatably connected between the end walls of the second injection chute, the second injection screw is fixedly connected to the worm gear shaft, the worm gear shaft is rotatably mounted on the end wall of the bevel gear cavity, a worm wheel is fixedly connected to the end of the worm gear shaft, the worm wheel is meshed with the worm, and the worm is fixedly mounted on the outer surface of the worm shaft, a second injection nut block is threadedly connected to the outer surface of the second injection screw, the second injection nut block is slidably connected to the second injection slider, a second injection spring is clamped between the second injection nut block and the inner end wall of the second injection slider, and the second injection slider is slidably connected to the second injection slider Between the end walls of the groove, a second connecting rod is fixedly connected to the upper part of the second injection slider, a second five-way valve is fixedly connected to the upper end of the second connecting rod, a second injection valve is fixedly connected to the second five-way valve, a second injection fixed pipe is fixedly connected to the end wall of the second injection valve, a second injection head is fixedly connected to the end of the second injection fixed pipe, the second injection head is inserted into the injection pipe, an elastic sealing material is provided on the inner surface of the second injection head, a plurality of second control valves are connected to the second five-way valve, one end of the delivery pipe is connected to the second control valve, the other end of the delivery pipe is connected to a pipeline, the pipeline is provided on the rotating plate, and the pipeline is connected to the three-way valve.

[0010] Preferably, the lifting mechanism includes a lifting frame symmetrically fixedly connected to the base plate, the lifting frame is provided with a lifting slide, a lifting screw is rotatably connected between the end walls of the lifting slide, the lifting screw is connected to the power output shaft of the lifting motor fixedly installed in the base plate, the outer surface of the lifting screw is threadedly connected with a lifting nut block, the lifting nut block is slidably connected between the end walls of the lifting slide, 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 frame, a stabilizing frame is fixedly connected to the angle adjustment block, and the stabilizing frame is slidably sleeved on the lifting frame.

[0011] Preferably, the angle adjustment mechanism includes an angle adjustment cavity provided in the angle adjustment block, a driven gear shaft is rotatably connected between the end walls of the angle adjustment cavity, a driven gear is fixedly connected to the outer surface of the driven gear shaft, the driven gear on one side is meshed with a driving gear, the driving gear is fixedly installed between the end walls of the driving gear shaft, the driving gear shaft is rotatably installed between the end walls of the angle adjustment cavity on one side, the driving gear shaft is connected to the power of the angle adjustment motor fixedly installed in the angle adjustment block on one side, the driven gear on the other side is meshed with brake teeth, the brake teeth are fixedly installed at the lower end of the brake electric push rod, the brake electric push rod is fixedly installed on the end wall of the angle adjustment cavity on the other side, the rotating plate is fixedly connected between the driven gear shafts, and the rotating plate is rotatably connected to the angle adjustment block.

[0012] Preferably, the injection mechanism includes a support rod fixedly connected to the base plate, a U-shaped frame fixedly connected to the upper end of the support rod, an injection barrel detachably connected to the U-shaped frame, an injection valve connected to the injection barrel, an injection pump fixedly connected to the lower part of the injection barrel, the injection pump is connected to one end of an injection electric push rod, a pressure plate fixedly connected to the lower end of the injection electric push rod, and a plurality of pressure cones are provided on the bottom wall of the pressure plate.

[0013] Preferably, the control mechanism includes a control panel fixedly mounted on the base plate, the control panel is provided with a control processor, the control processor is provided with a corresponding control program, the control processor is signal-connected with electrical components in the device, the base plate is provided with a power socket, and a power cord is inserted into the power socket.

[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 migration and fractionation of petroleum in multi-lithology strata. By connecting multiple reaction chambers in series, it is possible to simulate the combination of strata with different lithologies, and the obtained simulated samples are more representative.

[0016] 2. The present invention provides an experimental device for simulating the migration and fractionation of oil in multi-lithological strata. By controlling the temperature of different reaction chambers separately, the migration and fractionation of oil under different burial depth and temperature conditions can be accurately simulated.

[0017] 3. The present invention provides an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations. By connecting a collecting device to a reaction chamber, end-member oil samples of different formation fractionation degrees under limited lithology and temperature conditions can be obtained. 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 the migration and fractionation of oil in multi-lithology formations in the present invention;

[0021] Figure 2 It is a schematic diagram of the second direction structure of an experimental device for simulating the migration and fractionation of oil in multi-lithology formations in the present invention;

[0022] Figure 3 It is a schematic diagram of the third orientation structure of an experimental device for simulating the migration and fractionation of oil in multi-lithology formations in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure in the fourth direction of an experimental device for simulating the migration and fractionation of oil in multi-lithology formations in the present invention;

[0024] Figure 5 It is a schematic diagram of the fifth direction structure of an experimental device for simulating the migration and fractionation of oil in multi-lithology formations in the present invention;

[0025] Figure 6 The sixth direction structural schematic diagram of an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations in the present invention;

[0026] Figure 7 It is a schematic diagram of the first partial structure of an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations in the present invention;

[0027] Figure 8 It is a schematic diagram of the second partial structure of an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations in the present invention;

[0028] Fig. 9 It is a schematic diagram of the third partial structure of an experimental device for simulating the migration and fractionation of oil in multi-lithology formations in the present invention;

[0029] Fig.10 It is a schematic diagram of the fourth partial structure of an experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations in the present invention;

[0030] Fig.11 It is a fifth partial structural schematic diagram of an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations in the present invention;

[0031] Fig.12 It is a sixth partial structural schematic diagram of an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations in the present invention;

[0032] Fig.13 The seventh structural diagram of an experimental device for simulating the migration and fractionation of petroleum in multi-lithology formations in the present invention;

[0033] Fig.14 for Fig.13 Schematic diagram of the cross-sectional structure at AA in the middle;

[0034] Fig.15 for Fig.14 Schematic diagram of the cross-sectional structure at the middle BB;

[0035] Fig.16 for Fig.14 Schematic diagram of the enlarged structure at point C in the middle.

[0036] In the figure: 1-bottom plate, 2-plug hole, 3-control panel, 4-rotating plate, 5-support rod, 6-second connecting rod, 7-second five-way valve, 8-second control valve, 9-second injection valve, 10-mouth-shaped frame, 11-horizontal plate, 12-lifting motor, 13-injection barrel, 14-injection valve, 15-direction adjustment motor, 16-lifting frame, 17-stabilizing frame, 18-groove frame, 19-angle adjustment block, 20-mounting plate, 21-collection bottle, 22-collection valve, 23-collection pipeline, 24-high-pressure oil pump, 25-three-way valve, 26 - high-pressure gas cylinder, 27- closing block, 28- high-pressure water pump, 95- injection pipe, 30- first connecting rod, 31- lower side stabilizing ring, 32- stabilizing rod, 33- mounting rod, 34- injection electric push rod, 35- pressing plate, 36- pressing cone, 37- second injection fixed pipe, 38- second injection head, 39- mounting ring, 40- program controlled furnace body, 41- first injection chute, 42- first injection slider, 43- first injection screw, 44- vacuum pump, 45- closed electric rotating shaft, 46- second injection chute, 47- second injection screw, 4 8-first five-way valve, 49-cover plate, 50-drain valve, 51-four-way valve, 52-connecting control valve, 53-connecting electric push rod, 54-collecting control valve, 55-injection pump, 56-enclosed electric screw rod, 57-angle adjustment chamber, 58-second injection slider, 59-first injection head, 60-first injection fixed pipe, 61-first control valve, 62-worm gear, 63-pipeline, 64-first injection valve, 65-connector, 96-reaction warehouse pipe, 67-connecting pipe, 68-electric shaft, 69-diaphragm, 70-bevel gear chamber, 7 1-brake tooth, 72-brake electric push rod, 73-driving gear, 74-driving gear shaft, 75-angle adjustment motor, 76-driven gear shaft, 77-driven gear, 78-nut plate, 79-upper stabilizing ring, 80-worm gear shaft, 81-worm, 82-driving bevel gear, 83-driven bevel gear, 84-worm shaft, 93-first injection nut block, 86-bevel gear shaft, 87-lifting screw, 88-lifting slide, 89-lifting nut block, 90-second injection spring, 91-second injection nut block, 92-first injection spring. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figure 1-16As shown, the present invention provides an experimental device for simulating the migration and fractionation of oil in multi-lithological formations, comprising a bottom plate 1, the bottom plate 1 is connected with a lifting mechanism, the lifting mechanism is used to adjust the height, which is convenient for rotation and injection, the lifting mechanism is connected with an angle adjustment mechanism, the angle adjustment mechanism is used to adjust the angle, which is convenient for experimental simulation at multiple angles, the bottom plate 1 is connected with an injection mechanism, the injection mechanism is used to inject during reaction and compact during injection, the angle adjustment mechanism is connected with a simulation mechanism, the simulation mechanism is used to separate and collect different The experiment was conducted on the fractionation degree of petroleum. The angle adjustment mechanism was connected with a first filling mechanism, which was used to fill corresponding reaction substances when all reaction chambers were connected in series. The angle adjustment mechanism was connected with a second filling mechanism, which was used to add corresponding reaction substances to a single reverse chamber. The angle adjustment mechanism was connected with a direction adjustment mechanism, which was used to adjust the direction of the reaction chamber to facilitate docking and separation with the first filling mechanism and the second filling mechanism. A control mechanism was provided on the bottom plate 1, which controlled the movement process of the entire device.

[0039] During operation, the control mechanism moves and sends information to the corresponding electrical components to make the corresponding electrical components move. The lifting mechanism moves to drive the rotating plate 4 to move upward to facilitate the injection of materials into the reaction warehouse tube 96. The injection mechanism moves. After the injection of materials into the reaction warehouse tube 96 is completed, the lifting mechanism moves to drive the rotating plate 4 to move downward. The first filling mechanism moves to add corresponding reaction materials into the reaction warehouse tube 96. After the filling is completed, the simulation mechanism moves to perform experimental simulation. When performing a certain angle simulation, the lifting mechanism moves to drive the rotating plate 4 to rise to a certain angle. The angle adjustment mechanism moves to achieve the driving of the rotating plate 4 to rotate to a certain angle, thereby performing an experimental simulation at a certain angle. When performing a single experimental simulation, the rotating plate 4 is reset, the direction adjustment mechanism moves, thereby driving the reaction warehouse tube 96 to rotate in a certain direction, the second filling mechanism moves to add corresponding reaction materials into the reaction warehouse tube 96, and the simulation mechanism moves to perform a single experimental simulation.

[0040] Advantageously, the simulation mechanism includes a rotating plate 4, on which a plurality of bevel gear shafts 86 are rotatably connected, the bevel gear shafts 86 are spaced the same, a groove frame 18 is fixedly connected to the upper portion of the bevel gear shaft 86, an electric shaft 68 is symmetrically rotatably connected to the groove frame 18, a mounting ring 39 is fixedly connected between the electric shafts 68, a program-controlled furnace body 40 is mounted on the mounting ring 39, a reaction warehouse tube 96 is installed in the program-controlled furnace body 40, and a closing block 27 is symmetrically fixedly connected to the program-controlled furnace body 40, A closed electric screw 56 is rotatably connected in the closed block 27, and the closed electric screw 56 is threadedly connected to a nut plate 78 slidably connected in the closed block 27. The end of the nut plate 78 is rotatably connected to a closed electric shaft 45. A cover plate 49 is fixedly connected to the outer surface of the closed electric shaft 45, and a diaphragm 69 is fixedly connected to the inner surface of the cover plate 49. The two cover plates 49 seal the ports on both sides of the reaction chamber tube 96. One end of a connecting pipe 67 is fixedly connected to the cover plate 49 on one side, and the other end of the connecting pipe 67 is fixedly connected to the cover plate 49 on the other side. The end is connected to a four-way valve 51, and the four-way valve 51 is located between the program-controlled furnace body 40. The four-way valve 51 is fixedly mounted on the upper end of the mounting rod 33, and the mounting rod 33 is fixedly mounted on the rotating plate 4. The four-way valve 51 is fixedly connected to a collection control valve 54, and the collection control valve 54 is connected to one end of the collection pipe 23. The other end of the collection pipe 23 is fixedly connected to the collection valve 22, and the collection valve 22 is detachably connected to the collection bottle 21, and the collection bottle 21 is detachably connected to the mounting plate 20. The mounting plate 20 is fixedly mounted on the side wall of the bottom plate 1, the four-way valve 51 is fixedly connected with the drain valve 50, the four-way valve 51 is fixedly connected with the communication control valve 52, the communication control valve 52 is fixedly connected with the communication electric push rod 53, the end of the communication electric push rod 53 is fixedly connected with the connector 65, the connector 65 is plugged into the outer surface of the injection pipe 95, the inner side of the connector 65 is provided with an elastic sealing material, the injection pipe 95 is fixedly mounted on the cover plate 49 on the other side, and is connected with the reaction chamber pipe 96;

[0041] When adding materials, the electric shaft 68 rotates, thereby driving the mounting ring 39 to rotate, thereby driving the program-controlled furnace body 40 to rotate to a vertical direction, thereby driving the reaction chamber tube 96 to rotate to a vertical direction, and the lower side of the reaction chamber tube 96 is closed. After the addition of materials to the reaction chamber tube 96 is completed, the closed electric shaft 45 rotates, thereby driving the cover plate 49 to rotate. After rotating to the upper side of the reaction chamber tube 96, the closed electric screw 56 rotates, thereby driving the nut plate 78 to move, thereby driving the cover plate 49 to move and close the upper side of the reaction chamber tube 96. After closing, the electric shaft 68 rotates, thereby driving the reaction chamber tube 96 to rotate to a horizontal direction, so that the connecting electric push rod 53 moves, thereby pushing the connector 65 to move and be plugged into the outer surface of the injection pipe 95, thereby connecting the reaction chamber tubes 96 in series, controlling the temperature of the program-controlled furnace body 40, and performing After heating, the whole is rotated to the vertical direction. The temperature of the program-controlled furnace body 40 is different from top to bottom. When it is in the horizontal direction, the temperature of the program-controlled furnace body 40 does not change much. After the injected material passes through the first reaction warehouse tube 96, it enters the four-way valve 51 through the connecting pipe 67. The first collecting control valve 54 is opened to allow the simulated petroleum sample in the first reaction warehouse tube 96 to enter the collecting pipe 23, and enter the collecting bottle 21 through the collecting pipe 23 for collection. After the collection is completed, the collecting control valve 54 is closed, and the connecting control valve 52 is opened to allow the injected material petroleum, etc. to enter the connecting electric push rod 53 through the connecting control valve 52, and enter the next reaction warehouse tube 96 through the connecting head 65. The petroleum discharged from the next reaction warehouse tube 96 is collected by the same method as above. After the experiment is completed, the drain valve 50 is opened to discharge the gas, etc. in the reaction warehouse tube 96.

[0042] Advantageously, the direction adjustment mechanism includes a bevel gear cavity 70 provided in the rotating plate 4, a worm shaft 84 is rotatably connected between the end walls of the bevel gear cavity 70, the worm shaft 84 is connected to the power output shaft of the direction adjustment motor 15 fixedly installed in the rotating plate 4, and a driving bevel gear 82 is fixedly connected to the outer surface of the worm shaft 84, the driving bevel gear 82 is meshed with a driven bevel gear 83, and the driven bevel gear 83 is fixedly installed at the lower end of the bevel gear shaft 86, and the bevel gear shaft 86 extends to the upper side of the rotating plate 4;

[0043] During operation, the direction adjustment motor 15 is started to drive the worm shaft 84 to rotate, thereby driving the active bevel gear 82 to rotate, and the active bevel gear 82 is meshed with the driven bevel gear 83, thereby driving the bevel gear shaft 86 to rotate, thereby driving the groove frame 18 to rotate in a certain direction.

[0044] Advantageously, the first filling mechanism includes a first injection chute 41 provided on the rotating plate 4, a first injection screw 43 is rotatably connected between the end walls of the first injection chute 41, the first injection screw 43 is fixedly connected to the end of the worm shaft 84, a first injection nut block 93 is threadedly connected to the outer surface of the first injection screw 43, the first injection nut block 93 is slidably connected to the first injection slider 42, the first injection slider 42 is slidably installed between the end walls of the first injection chute 41, a first injection spring 92 is clamped between the first injection nut block 93 and the inner end wall of the first injection slider 42, the first injection slider 42 is fixedly connected to the first connecting rod 30 on the upper part, the first connecting rod 30 is fixedly connected to the first five-way valve 48 on the upper end, and the first five-way valve 48 is fixedly connected to the upper end of the first connecting rod 30. A first injection valve 64 is fixedly connected, a first injection fixed pipe 60 is fixedly connected to the end wall of the first injection valve 64, a first injection head 59 is fixedly connected to the end of the first injection fixed pipe 60, an elastic sealing material is provided on the inner surface of the first injection head 59, the first injection head 59 is inserted into the outer surface of the injection pipe 95, a plurality of first control valves 61 are connected to the first five-way valve 48, one end of a hose is connected to the first control valve 61, the other end of the hose is connected to the three-way valve 25, each of the three-way valves 25 is fixedly connected to the high-pressure oil pump 24, the high-pressure gas cylinder 26, the high-pressure water pump 28, and the vacuum pump 44, respectively, the high-pressure oil pump 24, the high-pressure gas cylinder 26, the high-pressure water pump 28, and the vacuum pump 44 are fixedly installed on the bottom plate 1;

[0045] During operation, the worm shaft 84 rotates, thereby driving the first injection screw 43 to rotate, and the first injection screw 43 is threadedly connected to the first injection nut block 93, thereby driving the first injection nut block 93 to move, thereby driving the first injection slider 42 to move, thereby driving the first connecting rod 30 to move, thereby driving the first five-way valve 48 to move, thereby driving the first injection valve 64 to move, thereby driving the first injection fixed tube 60 to move, thereby driving the first injection head 59 to move and insert into the injection tube 95, starting the vacuum pump 44 to evacuate the reaction chamber tube 96, starting the high-pressure oil pump 24, so that the high-pressure oil enters the hose through the three-way valve 25, enters the first five-way valve 48 through the hose through the first control valve 61, enters the first injection fixed tube 60 through the first injection valve 64, enters the injection tube 95 through the first injection head 59, and enters the reaction chamber tube 96. In the reaction warehouse pipe 96, the high-pressure gas cylinder 26 is started, so that the high-pressure gas enters the hose through the three-way valve 25, enters the first five-way valve 48 through the hose through the first control valve 61, enters the first injection fixed pipe 60 through the first injection valve 64, enters the injection pipe 95 through the first injection head 59, and thus enters the reaction warehouse pipe 96; the high-pressure water pump 28 is started, so that the high-pressure water enters the hose through the three-way valve 25, enters the first five-way valve 48 through the hose through the first control valve 61, enters the first injection fixed pipe 60 through the first injection valve 64, enters the injection pipe 95 through the first injection head 59, and thus enters the reaction warehouse pipe 96, so that the corresponding reaction substances are injected into the reaction warehouse pipe 96, and the rock component environment during the migration process is simulated, so as to facilitate the experimental simulation of multiple reaction warehouse pipes 96 connected in series.

[0046] Advantageously, the second filling mechanism includes a second injection chute 46 provided on the rotating plate 4, a second injection screw 47 is rotatably connected between the end walls of the second injection chute 46, the second injection screw 47 is fixedly connected to the worm gear shaft 80, the worm gear shaft 80 is rotatably mounted on the end wall of the bevel gear cavity 70, a worm wheel 62 is fixedly connected to the end of the worm gear shaft 80, the worm wheel 62 is meshed with a worm 81, the worm 81 is fixedly mounted on the outer surface of the worm shaft 84, a second injection nut block 91 is threadedly connected to the outer surface of the second injection screw 47, the second injection nut block 91 is slidably connected to the second injection slider 58, a second injection spring 90 is clamped between the second injection nut block 91 and the inner end wall of the second injection slider 58, and the second injection slider 58 is slidably connected to the second injection nut block 91. Between the end walls of the second injection chute 46, the second injection slider 58 is fixedly connected to the second connecting rod 6 on the upper part, the second connecting rod 6 is fixedly connected to the upper end thereof, the second five-way valve 7 is fixedly connected to the second injection valve 9, the second injection valve 9 is fixedly connected to the end wall of the second injection valve 9, the second injection fixed pipe 37 is fixedly connected to the end of the second injection fixed pipe 37, the second injection head 38 is fixedly connected to the end thereof, the second injection head 38 is inserted into the injection pipe 95, the inner surface of the second injection head 38 is provided with elastic sealing material, the second five-way valve 7 is connected to a plurality of second control valves 8, the second control valve 8 is connected to the end of one side of the delivery pipe, the other end of the delivery pipe is connected to the pipeline 63, the pipeline 63 is provided on the rotating plate 4, and the pipeline 63 is connected to the three-way valve 25;

[0047] During operation, the worm shaft 84 rotates, thereby driving the worm 81 to rotate, and the worm 81 meshes with the worm wheel 62, thereby driving the worm wheel shaft 80 to rotate, thereby driving the second injection screw 47 to rotate, and the second injection screw 47 is threadedly connected with the second injection nut block 91, thereby pushing the second injection slider 58 to move, thereby driving the second connecting rod 6 to move, thereby driving the second five-way valve 7 to move, thereby driving the second injection valve 9 to move, thereby driving the second injection fixed pipe 37 to move, thereby driving the second injection head 38 to move and insert into the injection pipe 95, open the second injection valve 9, open the corresponding second control valve 8, start the vacuum pump 44, thereby evacuating the reaction chamber pipe 96, start the high-pressure gas cylinder 26, so that the high-pressure gas enters the pipeline 63 through the three-way valve 25, enters the second five-way valve 7 through the delivery pipe through the second control valve 8, enters the second injection fixed pipe 37 through the second injection valve 9, enters the second injection head 38 through the second injection fixed pipe 37, and then The high-pressure water enters the injection pipe 95 and finally enters the reaction chamber pipe 96. The high-pressure water pump 28 is started, so that the high-pressure water enters the pipeline 63 through the three-way valve 25, passes through the delivery pipe and the second control valve 8 to enter the second five-way valve 7, passes through the second injection valve 9 to enter the second injection fixed pipe 37, passes through the second injection fixed pipe 37 to enter the second injection head 38, then enters the injection pipe 95, and finally enters the reaction chamber pipe 96. The high-pressure oil pump 24 is started, so that the high-pressure oil It enters the pipeline 63 through the three-way valve 25, enters the second five-way valve 7 through the delivery pipe and the second control valve 8, enters the second injection fixed pipe 37 through the second injection valve 9, enters the second injection head 38 through the second injection fixed pipe 37, then enters the injection pipe 95, and finally enters the reaction warehouse pipe 96, so as to inject the corresponding reaction material into the reaction warehouse pipe 96, simulate the rock component environment during the migration process, and facilitate experimental simulation of a single reaction warehouse pipe 96.

[0048] Advantageously, the lifting mechanism comprises a lifting frame 16 symmetrically fixedly connected to the base plate 1, the lifting frame 16 is provided with a lifting slot 88, a lifting screw 87 is rotatably connected between the end walls of the lifting slot 88, the lifting screw 87 is connected to the power output shaft of the lifting motor 12 fixedly installed in the base plate 1, a lifting nut block 89 is threadedly connected to the outer surface of the lifting screw 87, the lifting nut block 89 is slidably connected between the end walls of the lifting slot 88, an angle adjustment block 19 is fixedly connected to the end wall of the lifting nut block 89, the angle adjustment block 19 is slidably connected to the lifting frame 16, a stabilizing frame 17 is fixedly connected to the angle adjustment block 19, and the stabilizing frame 17 is slidably sleeved on the lifting frame 16;

[0049] During operation, the lifting motor 12 is started to drive the lifting screw rod 87 to rotate, thereby driving the lifting nut block 89 to move, thereby driving the angle adjustment block 19 to move, thereby driving the rotating plate 4 to rise and fall, and the stabilizing frame 17 increases the stability of the angle adjustment block 19.

[0050] Advantageously, the angle adjustment mechanism includes an angle adjustment cavity 57 provided in the angle adjustment block 19, a driven gear shaft 76 is rotatably connected between the end walls of the angle adjustment cavity 57, a driven gear 77 is fixedly connected to the outer surface of the driven gear shaft 76, the driven gear 77 on one side is meshed with a driving gear 73, the driving gear 73 is fixedly mounted between the end walls of a driving gear shaft 74, the driving gear shaft 74 is rotatably mounted between the end walls of the angle adjustment cavity 57 on one side, the driving gear shaft 74 is power-connected to an angle adjustment motor 75 fixedly mounted in the angle adjustment block 19 on one side, the driven gear 77 on the other side is meshed with a brake tooth 71 for braking, the brake tooth 71 is fixedly mounted on the lower end of a brake electric push rod 72, the brake electric push rod 72 is fixedly mounted on the end wall of the angle adjustment cavity 57 on the other side, the rotating plate 4 is fixedly connected between the driven gear shafts 76, and the rotating plate 4 is rotatably connected to the angle adjustment block 19;

[0051] During operation, the angle adjustment motor 75 is started to drive the driving gear shaft 74 to rotate, thereby driving the driving gear 73 to rotate, and the driving gear 73 is meshed with the driven gear 77, thereby driving the lifting frame 16 to rotate, thereby driving the rotating plate 4 to rotate a certain angle. After rotating a certain angle, the braking electric push rod 72 is energized, thereby driving the braking tooth 71 to move and mesh with the driven gear 77, thereby achieving braking of the lifting frame 16, thereby fixing the rotating plate 4 at a certain angle.

[0052] Advantageously, the injection mechanism includes a support rod 5 fixedly connected to the bottom plate 1, a U-shaped frame 10 fixedly connected to the upper end of the support rod 5, a injection barrel 13 detachably connected to the U-shaped frame 10, a injection valve 14 connected to the injection barrel 13, a injection pump 55 fixedly connected to the lower part of the injection barrel 13, the injection pump 55 is connected to one end of the injection electric push rod 34, a pressure plate 35 is fixedly connected to the lower end of the injection electric push rod 34, a plurality of pressure cones 36 are provided on the bottom wall of the pressure plate 35, and the interior of the injection electric push rod 34 is processed into a hollow structure;

[0053] During operation, the injection electric push rod 34 moves downward, thereby driving the pressing plate 35 to move downward and enter the reaction chamber tube 96, and the injection pump 55 is started to draw the corresponding rock powder particles in the injection barrel 13 into the injection electric push rod 34, and enter the reaction chamber tube 96 through the pressing plate 35, so that the injection electric push rod 34 moves, thereby driving the pressing plate 35 to move downward, thereby driving the pressing cone 36 to move, thereby realizing compaction of the material while injecting, so as to simulate the corresponding rock structure.

[0054] Advantageously, the control mechanism comprises a control panel 3 fixedly mounted on the base plate 1, wherein a control processor is provided in the control panel 3, wherein a corresponding control program is provided in the control processor, wherein the control processor is signal-connected with an electrical component in the device, and wherein a power plug hole 2 is provided on the base plate 1, wherein a power cord is inserted into the power plug hole 2;

[0055] When working, the entire device is powered through the power socket 2, and the corresponding operation instructions are input on the control panel 3 and transmitted to the control processor. After processing, the control processor sends signals to the corresponding electrical components to make the corresponding electrical components move.

[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 the migration and fractionation of oil in multi-lithological formations, characterized by: The device comprises a bottom plate (1), the bottom plate (1) being connected with a lifting mechanism, the lifting mechanism being used to adjust the height for facilitating rotation and injection, the lifting mechanism being connected with an angle adjustment mechanism, the angle adjustment mechanism being used to adjust the angle for facilitating experimental simulation at multiple angles, the bottom plate (1) being connected with an injection mechanism, the injection mechanism being used to inject during reaction and to compact during injection, the angle adjustment mechanism being connected with a simulation mechanism, the simulation mechanism being used to separate and collect petroleum with different fractionation degrees during petroleum migration for experiment, the angle adjustment mechanism being connected with a first filling mechanism, the first filling mechanism being used to fill corresponding reaction substances when all reaction chambers are connected in series, the angle adjustment mechanism being connected with a second filling mechanism, the second filling mechanism being used to add corresponding reaction substances to a single reverse chamber, the angle adjustment mechanism being connected with a direction adjustment mechanism, the direction adjustment mechanism being used to adjust the direction of the reaction chamber for facilitating docking and separation with the first filling mechanism and the second filling mechanism, and the bottom plate (1) being provided with a control mechanism, the control mechanism being used to control the movement process of the entire device; The simulation mechanism comprises a rotating plate (4), a plurality of bevel gear shafts (86) are rotatably connected to the rotating plate (4), the bevel gear shafts (86) are spaced the same from each other, a groove frame (18) is fixedly connected to the upper part of the bevel gear shaft (86), an electric rotating shaft (68) is symmetrically rotatably connected to the groove frame (18), a mounting ring (39) is fixedly connected between the electric rotating shafts (68), a program-controlled furnace body (40) is mounted on the mounting ring (39), a reaction chamber tube (96) is mounted in the program-controlled furnace body (40), a closing block (27) is symmetrically fixedly connected to the program-controlled furnace body (40), and the closing block (27) is fixedly connected to the program-controlled furnace body (40). A closed electric screw (56) is rotatably connected in the block (27), and the closed electric screw (56) is threadedly connected to a nut plate (78) slidably connected in the closed block (27). The end of the nut plate (78) is rotatably connected to a closed electric shaft (45). The outer surface of the closed electric shaft (45) is fixedly connected to a cover plate (49), and the inner surface of the cover plate (49) is fixedly connected to a diaphragm (69). The two cover plates (49) seal the ports on both sides of the reaction chamber tube (96). One end of a connecting pipe (67) is fixedly connected to the cover plate (49) on one side, and the other end of the connecting pipe (67) is connected to the reaction chamber tube (96). A four-way valve (51) is connected to the program-controlled furnace body (40), the four-way valve (51) is located between the program-controlled furnace body (40), the four-way valve (51) is fixedly mounted on the upper end of the mounting rod (33), the mounting rod (33) is fixedly mounted on the rotating plate (4), the four-way valve (51) is fixedly connected to a collecting control valve (54), the collecting control valve (54) is connected to one end of a collecting pipe (23), the other end of the collecting pipe (23) is fixedly connected to the collecting valve (22), the collecting valve (22) is detachably connected to the collecting bottle (21), and the collecting bottle (21) is detachably connected to the mounting plate (20), The mounting plate (20) is fixedly mounted on the side wall of the base plate (1); the four-way valve (51) is fixedly connected to a drain valve (50); the four-way valve (51) is fixedly connected to a connecting control valve (52); the connecting control valve (52) is fixedly connected to a connecting electric push rod (53); the end of the connecting electric push rod (53) is fixedly connected to a connector (65); the connector (65) is plugged into the outer surface of the injection pipe (95); an elastic sealing material is provided on the inner side of the connector (65); the injection pipe (95) is fixedly mounted on the cover plate (49) on the other side and is connected to the inside of the reaction chamber pipe (96).

2. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 1, characterized in that: The direction adjustment mechanism comprises a bevel gear cavity (70) provided in the rotating plate (4); a worm shaft (84) is rotatably connected between the end walls of the bevel gear cavity (70); the worm shaft (84) is connected to a power output shaft of a direction adjustment motor (15) fixedly installed in the rotating plate (4); an active bevel gear (82) is fixedly connected to the outer surface of the worm shaft (84); the active bevel gear (82) is meshed with a driven bevel gear (83); the driven bevel gear (83) is fixedly installed at the lower end of the bevel gear shaft (86); and the bevel gear shaft (86) extends to the upper side of the rotating plate (4).

3. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 2, characterized in that: The first filling mechanism comprises a first injection chute (41) provided on the rotating plate (4), a first injection screw (43) is rotatably connected between the end walls of the first injection chute (41), the first injection screw (43) is fixedly connected to the end of the worm shaft (84), the outer surface of the first injection screw (43) is threadedly connected to a first injection nut block (93), the first injection nut block (93) is slidably connected in a first injection slider (42), the first injection slider (42) is slidably installed between the end walls of the first injection chute (41), a first injection spring (92) is clamped between the first injection nut block (93) and the inner end wall of the first injection slider (42), the upper part of the first injection slider (42) is fixedly connected to a first connecting rod (30), the upper end of the first connecting rod (30) is fixedly connected to a first five-way valve (48), the upper end of the first five-way valve (48) is fixedly connected A first injection valve (64) is provided. A first injection fixed pipe (60) is fixedly connected to the end wall of the first injection valve (64). A first injection head (59) is fixedly connected to the end of the first injection fixed pipe (60). An elastic sealing material is provided on the inner surface of the first injection head (59). The first injection head (59) is inserted into the outer surface of the injection pipe (95). The first five-way valve (48) is connected to a plurality of first control valves (61). The first control valve (61) is connected to one end of a hose. The other end of the hose is connected to a three-way valve (25). Each of the three-way valves (25) is fixedly connected to a high-pressure oil pump (24), a high-pressure gas cylinder (26), a high-pressure water pump (28), and a vacuum pump (44). The high-pressure oil pump (24), the high-pressure gas cylinder (26), the high-pressure water pump (28), and the vacuum pump (44) are fixedly installed on the bottom plate (1).

4. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 3, characterized in that: The second filling mechanism comprises a second injection chute (46) provided on the rotating plate (4), a second injection screw (47) is rotatably connected between the end walls of the second injection chute (46), the second injection screw (47) is fixedly connected to a worm gear shaft (80), the worm gear shaft (80) is rotatably mounted on the end wall of the bevel gear cavity (70), a worm wheel (62) is fixedly connected to the end of the worm gear shaft (80), the worm wheel (62) is meshed with a worm (81), the worm (81) is fixedly mounted on the outer surface of the worm shaft (84), a second injection nut block (91) is threadedly connected to the outer surface of the second injection screw (47), the second injection nut block (91) is slidably connected to the inside of a second injection slider (58), a second injection spring (90) is clamped between the second injection nut block (91) and the inner end wall of the second injection slider (58), the second injection slider (58) is slidably connected to the second injection The second injection slider (58) is fixedly connected to the end wall of the slide groove (46), the upper part of the second injection slider (58) is fixedly connected to a second connecting rod (6), the upper end of the second connecting rod (6) is fixedly connected to a second five-way valve (7), the second five-way valve (7) is fixedly connected to a second injection valve (9), the end wall of the second injection valve (9) is fixedly connected to a second injection fixed pipe (37), the end of the second injection fixed pipe (37) is fixedly connected to a second injection head (38), the second injection head (38) is inserted into the injection pipe (95), the inner surface of the second injection head (38) is provided with elastic sealing material, the second five-way valve (7) is connected to a plurality of second control valves (8), the second control valve (8) is connected to one end of a delivery pipe, the other end of the delivery pipe is connected to a pipeline (63), the pipeline (63) is arranged on the rotating plate (4), and the pipeline (63) is connected to the three-way valve (25).

5. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 4, characterized in that: The lifting mechanism comprises a lifting frame (16) symmetrically fixedly connected to the base plate (1), the lifting frame (16) is provided with a lifting slot (88), a lifting screw rod (87) is rotatably connected between the end walls of the lifting slot (88), the lifting screw rod (87) is connected to the power output shaft of the lifting motor (12) fixedly installed in the base plate (1), the outer surface of the lifting screw rod (87) is threadedly connected with a lifting nut block (89), the lifting nut block (89) is slidably connected between the end walls of the lifting slot (88), an angle adjustment block (19) is fixedly connected to the end wall of the lifting nut block (89), the angle adjustment block (19) is slidably connected to the lifting frame (16), the angle adjustment block (19) is fixedly connected to the angle adjustment block (19) and the stabilizing frame (17) is slidably sleeved on the lifting frame (16).

6. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 5, characterized in that: The angle adjustment mechanism comprises an angle adjustment cavity (57) provided in the angle adjustment block (19); a driven gear shaft (76) is rotatably connected between the end walls of the angle adjustment cavity (57); a driven gear (77) is fixedly connected to the outer surface of the driven gear shaft (76); the driven gear (77) on one side is meshed with a driving gear (73); the driving gear (73) is fixedly mounted between the end walls of a driving gear shaft (74); the driving gear shaft (74) is rotatably mounted between the end walls of the angle adjustment cavity (57) on one side; the driving gear shaft (74) is rotatably mounted between the end walls of the angle adjustment cavity (57) on one side; 74) is connected to the angle adjustment motor (75) fixedly installed in the angle adjustment block (19) on one side, and the driven gear (77) on the other side is engaged with the brake tooth (71) for braking. The brake tooth (71) is fixedly installed at the lower end of the brake electric push rod (72), and the brake electric push rod (72) is fixedly installed on the end wall of the angle adjustment cavity (57) on the other side. The rotating plate (4) is fixedly connected between the driven gear shaft (76), and the rotating plate (4) is rotationally connected to the angle adjustment block (19).

7. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 6, characterized in that: The injection mechanism comprises a support rod (5) fixedly connected to the bottom plate (1), a U-shaped frame (10) fixedly connected to the upper end of the support rod (5), an injection barrel (13) detachably connected to the U-shaped frame (10), an injection valve (14) connected to the injection barrel (13), an injection pump (55) fixedly connected to the lower part of the injection barrel (13), the injection pump (55) connected to one end of an injection electric push rod (34), a pressing plate (35) fixedly connected to the lower end of the injection electric push rod (34), and a plurality of pressing cones (36) provided on the bottom wall of the pressing plate (35).

8. The experimental device for simulating the migration and fractionation of petroleum in multi-lithological formations according to claim 7, characterized in that: The control mechanism comprises a control panel (3) fixedly mounted on the base plate (1), wherein a control processor is provided in the control panel (3), wherein a corresponding control program is provided in the control processor, wherein the control processor is signal-connected to an electrical component in the device, and wherein an electrical plug hole (2) is provided on the base plate (1), wherein a power cord is inserted into the electrical plug hole (2).

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