CN218816377U

CN218816377U - Fine oil reservoir shaft pressure simulation device based on computer

Info

Publication number: CN218816377U
Application number: CN202222978539.7U
Authority: CN
Inventors: 南建业
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-04-07
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a meticulous oil reservoir pit shaft pressure analogue means based on computer, including the pressure analogue means body, the pressure analogue means body includes the oil feed subassembly, installs the pressurization subassembly on oil feed subassembly right side, installs at the oil extraction subassembly on pressurization subassembly right side, installs at the left motor of oil feed subassembly, installs at the shaft coupling of motor output shaft tip and the pressure measurement oil return subassembly that feeds through and fix at oil extraction subassembly top. The utility model discloses a liquid level monitoring mechanism and acousto-optic warning mechanism's setting, automatic alarm reminds personnel when adding the oil mass of needs in the oil storage storehouse, make things convenient for personnel in time to know, can effectually reduce the oil mass and add too much condition, through the setting of elasticity shutoff mechanism, can be when refueling, remove the shutoff to the bell mouth automatically, and can be when producing pressure, carry out the shutoff to the bell mouth automatically, can effectually reduce the condition of oil reflux in the test process, and then improve experimental simulation stability.

Description

Fine oil reservoir shaft pressure simulation device based on computer

Technical Field

The utility model relates to an oil reservoir pit shaft pressure simulation technical field especially relates to a meticulous oil reservoir pit shaft pressure analogue means based on computer.

Background

The oil, it is the precious resource that the nature is presented for us, and oil has promoted the development of industrial revolution, and in the earlier stage of exploiting oil, the exploration matter of oil deposit and pit shaft pressure is important, and required device is bulky in the oil deposit pressure teaching experiment now, still needs a large amount of professionals to carry out complicated operation when using, in order to solve this problem, application number: 202110260449.1, which relates to an experimental device capable of simulating oil reservoir pressure, comprising an oil inlet pressurizing component, a pressurizing component, an oil discharging component, a pressure measuring oil return component, a coupling and a motor; the oil inlet pressurizing assembly comprises a transmission case, and an oil groove is formed in the transmission case; an oil storage bin is arranged above the transmission case, is of a hollow structure and is communicated with the oil groove; the pressurizing assembly comprises a pressurizing case; the oil discharge assembly comprises an oil discharge case; one end of the transmission case is fixedly connected with one side of the pressurizing case; the other side of the pressurizing case is fixedly connected with the oil discharging case; a pressure measuring oil return assembly is arranged above the oil discharge case; a transmission shaft is arranged in the transmission case; the motor drives the swash plate on the transmission shaft to rotate, so that the oil rod is driven to supply oil to the oil discharge assembly, and the experimental effect of simply, conveniently and quickly simulating the oil reservoir pressure is achieved; the boss in the middle of the transmission shaft is connected with the bearing rotating shaft in the transmission case, so that the transmission shaft is stably connected, and the stability and safety of the device in operation are ensured;

in the patent, an oil inlet pressurizing assembly, a pressurizing assembly, an oil discharging assembly, a pressure measuring oil return assembly, a coupler and a motor are matched, so that an experimental effect of quickly simulating oil reservoir pressure can be realized, the pressure simulation process is also suitable for shaft pressure simulation, and the pressure sensor in the pressure measuring oil return assembly is matched with an external computer APP, so that the purpose of monitoring the pressure condition in real time can be realized, but some defects still exist;

after adding oil through the oil storage bin in the above-mentioned patent, when great at oil feed pressurization subassembly internal pressure, can cause the phenomenon of oil backward flow to the oil storage bin, and then influence pressure simulation test, and when the fluid liquid level reached the experimental requirement in the oil storage bin, need stop adding fluid, but its mode through naked eye judgement fluid liquid level, the precision is low, synthesize the problem that the above-mentioned patent exists and improve, therefore we have proposed a meticulous oil reservoir pit shaft pressure analogue means based on computer and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the meticulous oil reservoir pit shaft pressure analogue means based on computer that proposes.

In order to realize the purpose, the utility model adopts the following technical scheme:

a computer-based pressure simulation device for a fine oil reservoir shaft comprises a pressure simulation device body, the pressure simulation device body comprises an oil inlet component, a pressurizing component arranged on the right side of the oil inlet component, an oil discharging component arranged on the right side of the pressurizing component, a motor arranged on the left side of the oil inlet component, a coupler arranged at the end part of an output shaft of the motor, and a pressure measuring oil return component communicated and fixed at the top of the oil discharging component, wherein the right end of the coupler is matched and connected with the oil inlet component, wherein the oil inlet component, the pressurizing component, the oil discharging component, the motor, the coupling and the pressure measuring oil return component are matched, the principles of simulating fine reservoir and wellbore pressures, which are disclosed in detail in the reference, not illustrated, the top of the oil inlet assembly is communicated and fixed with an oil inlet pipe, an elastic plugging mechanism is fixedly arranged in the oil inlet pipe and used for plugging the oil inlet pipe, the top end of the oil inlet pipe is communicated and fixed with an oil storage bin with an opening at the top, the oil storage is carried out through the oil storage bin, the top of the elastic plugging mechanism extends into the oil storage bin and is fixedly connected with the front inner wall and the rear inner wall of the oil storage bin, the top of the oil storage bin is fixedly connected with a cover plate, the cover plate is fixedly sleeved on the pressure measuring oil return component, a liquid level monitoring mechanism is fixedly connected between the bottom of the cover plate and the bottom inner wall of the oil storage bin and is used for monitoring the oil quantity in the oil storage bin, the right side of the oil storage bin is fixedly connected with an acousto-optic alarm mechanism which is electrically connected with the liquid level monitoring mechanism, and when the oil quantity is monitored to reach a preset value, the sound and light alarm mechanism is controlled to be opened to alarm and remind people, and an oil filling pipe communicated with the inside of the oil storage bin is embedded in the top of the cover plate.

Preferably, pressure measurement oil return subassembly is including the intercommunication and fix the first L venturi tube at oil extraction subassembly top, the left end intercommunication of first L venturi tube is fixed with the oil return valve, the top intercommunication of first L venturi tube is fixed with air relief valve, the top intercommunication of first L venturi tube is fixed with pressure sensor, pressure sensor's detection end extends to in the first L venturi tube, monitor the intraductal pressure condition of first L venturi tube through pressure sensor, pressure sensor and air relief valve electric connection, pressure sensor matches and is provided with outside computer APP, the left side intercommunication of oil return valve is fixed with the second L venturi tube, the fixed cover of apron is established on the second L venturi tube.

Preferably, elasticity shutoff mechanism includes fixed mounting at the inboard mounting panel of oil inlet pipe, the bell mouth has been seted up to the bottom of mounting panel, closely the cover is equipped with rubber sprue in the bell mouth, shutoff is carried out to the bell mouth through rubber sprue, the right side fixedly connected with installation piece of rubber sprue, the top fixedly connected with L shape locating lever of installation piece, L shape locating lever and installation piece cooperate, play the effect of location to rubber sprue, the top of L shape locating lever extends to in the oil storage bin, mounting panel sliding sleeve is established on L shape locating lever, fixedly connected with bracing piece between the front side inner wall of oil storage bin and the rear side inner wall, the first locating lever of bottom fixedly connected with of bracing piece, sliding sleeve is equipped with the locating tube that the bottom is block structure on the first locating lever, the bottom of locating tube and the top fixed connection of rubber sprue, fixedly connected with spring between the bottom of first locating lever and the bottom inner wall of locating tube, the setting of spring, can be in tensile state at the spring, when the below produces the extrusion force, utilize the elasticity of spring to assist the rubber sprue to reset upwards.

Preferably, the liquid level monitoring mechanism includes the locating lever of fixed connection between the bottom of apron and the top inner wall of oil storage bin, and the slip cap is equipped with the floating block on the locating lever, and the setting of floating block can be at the automatic come-up removal under the buoyancy effect of oil, and first groove has been seted up on the right side of locating lever, and fixed mounting has the light touch switch on the top inner wall in first groove.

Preferably, audible-visual alarm mechanism includes the audible-visual alarm of fixed mounting on oil storage bin right side, and fixed and electrically connected with controller in audible-visual alarm's front side, controller and dabbing switch electric connection, the right side fixedly connected with battery in oil storage bin, battery and audible-visual alarm electric connection, the battery supplies power for audible-visual alarm, sends audible-visual alarm through audible-visual alarm and reminds personnel.

Preferably, a sliding hole is formed in the top of the floating block, a sliding block is fixedly connected to the inner wall of the right side of the sliding hole, the front side and the rear side of the sliding block are in sliding contact with the inner wall of the front side and the inner wall of the rear side of the first groove respectively, the sliding block is located below the tact switch and matched with the tact switch, and the sliding block is used for triggering the tact switch to be turned on.

Preferably, first circular port and second circular port have been seted up at the top of apron, the inner wall of first circular port and the outside fixed connection of second L venturi tube, the inner wall of second circular port and the outside fixed connection who adds oil pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the matching of the liquid level monitoring mechanism and the acousto-optic alarm mechanism, the oil storage bin can automatically alarm and remind people when required oil is added, so that the people can know the oil storage bin in time conveniently, and the condition of excessive oil addition can be effectively reduced;

2. by the arrangement of the elastic plugging mechanism, the plugging of the tapered hole can be automatically removed when oil is added, and the rubber plugging block can be extruded from the lower part when pressure is generated, so that the automatic plugging of the tapered hole is realized, the condition of oil backflow in the test process can be effectively reduced, and the test simulation stability is further improved;

3. the arrangement of the pressure sensor can monitor the pressure condition in the first L-shaped pipe in the test process, transmit the pressure condition to the computer APP, and analyze and record the pressure condition through the computer APP, so that personnel can conveniently know the condition;

the utility model discloses a liquid level monitoring mechanism and acousto-optic warning mechanism's setting, automatic alarm reminds personnel when adding the oil mass of needs in the oil storage storehouse, make things convenient for personnel in time to know, can effectually reduce the oil mass and add too much condition, through the setting of elasticity shutoff mechanism, can be when refueling, remove the shutoff to the bell mouth automatically, and can be when producing pressure, carry out the shutoff to the bell mouth automatically, can effectually reduce the condition of oil reflux in the test process, and then improve experimental simulation stability.

Drawings

Fig. 1 is a schematic perspective view of a computer-based apparatus for simulating pressure in a fine reservoir shaft according to the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of a main view of a computer-based fine reservoir wellbore pressure simulation device provided by the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 100. a motor; 101. a coupling; 102. an oil inlet assembly; 103. a pressurizing assembly; 104. an oil discharge assembly; 105. a first L-shaped tube; 106. a pressure sensor; 107. a second L-shaped tube; 108. an oil return valve; 1. an oil storage bin; 2. a cover plate; 3. an audible and visual alarm; 4. a controller; 5. positioning a rod; 6. a floating block; 7. a light touch switch; 8. an oil inlet pipe; 9. mounting a plate; 10. a tapered hole; 11. a rubber block; 12. an L-shaped positioning rod; 13. a positioning tube; 14. a support bar; 15. a first positioning rod; 16. a spring; 17. and (7) installing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a computer-based fine oil reservoir wellbore pressure simulation device comprises a pressure simulation device body, wherein the pressure simulation device body comprises an oil inlet assembly 102, a pressurizing assembly 103 arranged on the right side of the oil inlet assembly 102, an oil discharging assembly 104 arranged on the right side of the pressurizing assembly 103, a motor 100 arranged on the left side of the oil inlet assembly 102, a coupler 101 arranged at the end part of an output shaft of the motor 100, and a pressure measuring oil return assembly communicated and fixed at the top of the oil discharging assembly 104, wherein the pressure measuring oil return assembly comprises a first L-shaped pipe 105 communicated and fixed at the top of the oil discharging assembly 104, the left end of the first L-shaped pipe 105 is communicated and fixed with an oil return valve 108, the oil return valve 108 is arranged and can be opened when oil flows back through the first L-shaped pipe 105, and the top of the first L-shaped pipe 105 is communicated and fixed with an automatic exhaust valve, the top of the first L-shaped pipe 105 is communicated and fixed with a pressure sensor 106, a detection end of the pressure sensor 106 extends into the first L-shaped pipe 105, the pressure sensor 106 is electrically connected with an automatic exhaust valve, the automatic exhaust valve is electrically connected with the pressure sensor 106, when large pressure is detected, the automatic exhaust valve is automatically controlled to open to release pressure, the pressure sensor 106 is provided with an external computer APP in a matching manner, the pressure sensor 106 transmits the monitored pressure condition to the computer APP, recording and analysis are performed through the computer APP, the left side of the oil return valve 108 is communicated and fixed with a second L-shaped pipe 107, the top of the oil storage bin 1 is fixedly connected with a cover plate 2, the cover plate 2 is fixedly sleeved on the second L-shaped pipe 107, the right end of the coupler 101 is matched and connected with the oil inlet assembly 102, and the top of the oil inlet assembly 102 is communicated and fixed with the oil inlet pipe 8;

an elastic plugging mechanism is fixedly arranged in the oil inlet pipe 8, the top end of the oil inlet pipe 8 is communicated with and is fixedly provided with an oil storage bin 1 with an opening at the top, the top of the elastic plugging mechanism extends into the oil storage bin 1 and is fixedly connected with the inner wall of the front side and the inner wall of the rear side of the oil storage bin 1, the elastic plugging mechanism comprises a mounting plate 9 fixedly arranged on the inner side of the oil inlet pipe 8, the bottom of the mounting plate 9 is provided with a tapered hole 10, a rubber plugging block 11 is tightly sleeved in the tapered hole 10, the outer side of the rubber plugging block 11 is in movable contact with the inner wall of the tapered hole 10, the right side of the rubber plugging block 11 is fixedly connected with a mounting block 17, the top of the mounting block 17 is fixedly connected with an L-shaped positioning rod 12, the top of the L-shaped positioning rod 12 extends into the oil storage bin 1, the mounting plate 9 is slidably sleeved on the L-shaped positioning rod 12, wherein the top of the mounting plate 9 is provided with a first perforation, the outer side of the L-shaped positioning rod 12 is bonded and coated with a sealing rubber sheet, the outer side of the sealing rubber sheet is in movable contact with the inner wall of the first perforation, the L-shaped positioning rod 12 has a vertical guiding and limiting effect on the rubber block 11, a supporting rod 14 is fixedly connected between the inner wall of the front side and the inner wall of the rear side of the oil storage bin 1, a first positioning rod 15 is fixedly connected to the bottom of the supporting rod 14, the supporting rod 14 is used for supporting the first positioning rod 15, a positioning pipe 13 with a bottom end being a blocking structure is slidably sleeved on the first positioning rod 15, the bottom end of the positioning pipe 13 is fixedly connected with the top of the rubber block 11, the positioning pipe 13 is matched with the first positioning rod 15, the rubber block 11 is further vertically positioned, and a spring 16 is fixedly connected between the bottom end of the first positioning rod 15 and the inner wall of the bottom end of the positioning pipe 13;

a liquid level monitoring mechanism is fixedly connected between the bottom of the cover plate 2 and the inner wall of the bottom of the oil storage bin 1, wherein the liquid level monitoring mechanism comprises a positioning rod 5 fixedly connected between the bottom of the cover plate 2 and the inner wall of the top of the oil storage bin 1, a floating block 6 is sleeved on the positioning rod 5 in a sliding manner, a first groove is formed in the right side of the positioning rod 5, a light-touch switch 7 is fixedly mounted on the inner wall of the top of the first groove, a sliding hole is formed in the top of the floating block 6, a sliding block is fixedly connected to the inner wall of the right side of the sliding hole, the front side and the rear side of the sliding block are respectively in sliding contact with the inner wall of the front side and the inner wall of the rear side of the first groove, the sliding block is located below the light-touch switch 7 and matched with the light-touch switch 7, and the light-touch switch 7 is triggered to be turned on through the sliding block;

the right side of the oil storage bin 1 is fixedly connected with an audible and visual alarm mechanism which is electrically connected with the light touch switch 7, wherein the audible and visual alarm mechanism comprises an audible and visual alarm 3 which is fixedly installed on the right side of the oil storage bin 1, the front side of the audible and visual alarm 3 is fixedly and electrically connected with a controller 4, the controller 4 is electrically connected with the light touch switch 7, the right side of the oil storage bin 1 is fixedly connected with a storage battery, the storage battery is electrically connected with the audible and visual alarm 3, and the storage battery supplies power for the audible and visual alarm 3;

the top of apron 2 is inlayed and is equipped with the oil filler pipe that is linked together with 1 inside of oil storage bin, and wherein first circular port and second circular port have been seted up at the top of apron 2, the outside fixed connection of the inner wall of first circular port and second L venturi tube 107, the inner wall of second circular port and the outside fixed connection who adds the oil filler pipe, add oil to oil storage bin 1 through adding the oil filler pipe, the utility model discloses a liquid level monitoring mechanism and acousto-optic warning mechanism's setting, automatic alarm reminds personnel when can add the oil mass of needs in oil storage bin 1, make things convenient for personnel in time to know, can effectually reduce the too much condition of oil mass addition, through the setting of elasticity shutoff mechanism, can be when refueling, the shutoff to bell mouth 10 is relieved automatically, and can be when producing pressure, carry out the shutoff to bell mouth 10 automatically, can effectually reduce the condition of oil backward flow in the test process, and then improve experimental simulation stability.

The working principle is as follows: when the oil feeding assembly 102 is used, when oil is fed through the oil feeding pipe, the oil enters the oil storage bin 1, the oil entering the oil storage bin 1 enters the tapered hole 10 to extrude the rubber block 11, the extrusion force drives the rubber block 11 to move downwards, the rubber block 11 drives the L-shaped positioning rod 12 to move downwards through the mounting block 17, the rubber block 11 drives the positioning pipe 13 to slide downwards on the first positioning rod 15, the positioning pipe 13 stretches the spring 16 while moving downwards, the rubber block 11 is separated from the tapered hole 10 downwards to remove the blockage of the tapered hole 10, at the moment, the oil enters the oil feeding assembly 102 through the tapered hole 10 and the oil feeding pipe 8 in sequence, when the oil in the oil feeding assembly 102 is full, the oil stops flowing continuously, the oil level in the oil storage bin 1 gradually rises along with the addition of the oil, the floating block 6 gradually floats upwards under the action of buoyancy, the floating block 6 drives the sliding block to slide upwards in the first groove, the sliding block moves upwards to be in contact with the bottom of the tact switch 7, the oil amount in the oil storage bin 1 is added to a required amount at the moment, the tact switch 7 is triggered to be started, the tact switch 7 transmits a signal to the controller 4, the controller 4 controls the audible and visual alarm 3 to be started, the audible and visual alarm 3 sends out audible and visual alarm to remind people, the people can know in time, the people can stop oiling, and the situation that the oil amount is added by the people can be effectively reduced in an alarm reminding mode;

when oil in the oil inlet assembly 102 is pushed to move rightwards to the pressurizing assembly 103, pressure in the oil inlet assembly 102 is increased in the pushing process, an upward extrusion force is supplied to the oil in the oil inlet pipe 8 under the action of the pressure, the rubber plugging block 11 is enabled to move upwards under the action of the extrusion force and the elastic force of the spring 16 in a stretching state, the rubber plugging block 11 drives the L-shaped positioning rod 12 to move upwards through the mounting block 17, the rubber plugging block 11 upwards plugs the tapered hole 10, and the situation of oil backflow in the test process can be effectively avoided through the mode of plugging the tapered hole 10 under the extrusion force, so that the test simulation stability is improved.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a meticulous oil reservoir pit shaft pressure analogue means based on computer, including the pressure analogue means body, the pressure analogue means body includes oil feed subassembly (102), install pressurization subassembly (103) on oil feed subassembly (102) right side, install oil extraction subassembly (104) on pressurization subassembly (103) right side, install in left motor (100) of oil feed subassembly (102), install shaft coupling (101) at motor (100) output shaft tip, and the intercommunication is fixed and is being arranged the pressure measurement oil return subassembly at oil extraction subassembly (104) top, a serial communication port, the right-hand member of shaft coupling (101) is connected with oil feed subassembly (102) cooperatees, the top intercommunication of oil feed subassembly (102) is fixed with into oil pipe (8), advance oil pipe (8) internal fixation and install elastic plugging mechanism, advance the top intercommunication of oil pipe (8) and be fixed with oil storage storehouse (1) that the top set up for the opening, the top of elastic plugging mechanism extends to in oil storage storehouse (1) and with the front side inner wall and the rear side inner wall fixed connection of oil storage storehouse (1), the top fixedly connected with the oil storage storehouse (2) of oil storage storehouse (1), the top of elastic plugging mechanism is connected with the monitoring cover plate (2) is connected with the inner wall of oil storage bin (1), the monitoring mechanism is connected with the oil storage liquid level monitoring mechanism bottom of the oil storage bin (1), the inner wall is connected with the oil storage bin (2) is connected with the internal fixation mechanism, the oil storage bin (1) is connected with the oil level monitoring mechanism, the oil level monitoring mechanism is connected with the oil level monitoring mechanism bottom of the oil level monitoring mechanism, the oil level is connected with the oil level monitoring mechanism, the oil level monitoring mechanism is connected with the oil level monitoring mechanism bottom of the oil level (1), the oil level is connected with the oil level monitoring mechanism, the oil level monitoring mechanism is connected with the oil level monitoring mechanism, the oil level (1) inner wall is connected with the oil level monitoring mechanism, the oil level monitoring mechanism bottom of the oil level monitoring mechanism, the oil level monitoring mechanism is connected with the oil level of the oil level (1), the oil level monitoring mechanism is connected with the oil level A tube.

2. The computer-based fine oil reservoir shaft pressure simulation device is characterized in that the pressure measurement oil return assembly comprises a first L-shaped pipe (105) which is communicated and fixed at the top of an oil discharge assembly (104), an oil return valve (108) is communicated and fixed at the left end of the first L-shaped pipe (105), an automatic exhaust valve is communicated and fixed at the top of the first L-shaped pipe (105), a pressure sensor (106) is communicated and fixed at the top of the first L-shaped pipe (105), a detection end of the pressure sensor (106) extends into the first L-shaped pipe (105), the pressure sensor (106) is electrically connected with the automatic exhaust valve, the pressure sensor (106) is provided with an external computer APP in a matching mode, a second L-shaped pipe (107) is communicated and fixed at the left side of the oil return valve (108), and a cover plate (2) is fixedly sleeved on the second L-shaped pipe (107).

3. The computer-based fine oil reservoir wellbore pressure simulation device according to claim 2, wherein the elastic plugging mechanism comprises a mounting plate (9) fixedly mounted on the inner side of the oil inlet pipe (8), a tapered hole (10) is formed in the bottom of the mounting plate (9), a rubber plugging block (11) is tightly sleeved in the tapered hole (10), a right side fixedly connected with mounting block (17) of the rubber plugging block (11), a top fixedly connected with L-shaped positioning rod (12) of the mounting block (17), the top of the L-shaped positioning rod (12) extends into the oil reservoir (1), a sliding sleeve of the mounting plate (9) is sleeved on the L-shaped positioning rod (12), a supporting rod (14) is fixedly connected between the inner wall of the front side and the inner wall of the rear side of the oil reservoir (1), a first positioning rod (15) is fixedly connected with the bottom end of the supporting rod (14), a positioning pipe (13) with a bottom end of the first positioning rod (15) in a plugging structure is sleeved on the sliding sleeve, a bottom end of the positioning pipe (13) is fixedly connected with the top of the rubber plugging block (11), and a spring (16) is connected between the bottom end of the positioning pipe (13).

4. The computer-based fine oil reservoir wellbore pressure simulation device according to claim 1, wherein the liquid level monitoring mechanism comprises a positioning rod (5) fixedly connected between the bottom of the cover plate (2) and the inner wall of the top of the oil storage bin (1), a floating block (6) is slidably sleeved on the positioning rod (5), a first groove is formed in the right side of the positioning rod (5), and a light-touch switch (7) is fixedly mounted on the inner wall of the top of the first groove.

5. The computer-based fine reservoir wellbore pressure simulation device according to claim 4, wherein the audible and visual alarm mechanism comprises an audible and visual alarm (3) fixedly installed on the right side of the oil reservoir (1), the front side of the audible and visual alarm (3) is fixedly and electrically connected with a controller (4), the controller (4) is electrically connected with the tact switch (7), the right side of the oil reservoir (1) is fixedly connected with a storage battery, and the storage battery is electrically connected with the audible and visual alarm (3).

6. The computer-based fine reservoir wellbore pressure simulation device according to claim 4, wherein a sliding hole is formed in the top of the floating block (6), a sliding block is fixedly connected to the inner wall of the right side of the sliding hole, the front side and the rear side of the sliding block are in sliding contact with the inner wall of the front side and the inner wall of the rear side of the first groove respectively, and the sliding block is located below the tact switch (7) and is matched with the tact switch (7).

7. The computer-based fine reservoir wellbore pressure simulation device of claim 2, wherein the top of the cover plate (2) is provided with a first circular hole and a second circular hole, the inner wall of the first circular hole is fixedly connected with the outer side of the second L-shaped pipe (107), and the inner wall of the second circular hole is fixedly connected with the outer side of the oil filling pipe.