Shale oil carbon dioxide displacement simulation experiment device

Abstract

The utility model discloses a shale oil carbon dioxide displacement simulation experiment device, which is applied to the field of oil reservoir development, and is characterized in that a triangular groove is moved by moving a sliding cylinder, the triangular groove moves to enable a clamping rod to be separated from a clamping groove under the action of a second spring, and an air inlet pipe is taken out; then the mounting head on a new carbon dioxide gas tank is connected with the gas inlet pipe, the sliding cylinder is loosened to reset the triangular groove, and the clamping rod is clamped with the clamping groove to fix the clamping groove, so that the purpose of conveniently replacing the carbon dioxide gas tank is achieved, the workload is reduced, and the replacement efficiency is improved; a rotating head is rotated to enable a transmission shaft to drive a second bevel gear to rotate, the second bevel gear rotates to enable a first bevel gear to drive a screw rod to rotate, the screw rod rotates to drive a baffle to move, the baffle and a limiting ring are pressed tightly, and the pipe opening of the output pipe is blocked, so that the purpose of an anti-dripping function is achieved, cleanliness of the electronic balance is guaranteed, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the oil reservoir development field especially relates to a shale oil carbon dioxide oil displacement simulation experiment device. BACKGROUND

[0002] Through searching Chinese patent, the public number for carbon dioxide oil displacement simulation experiment device of shale oil is CN219638808U, including temperature adjusting room shell and core holder, the core holder center position is provided with surrounding pressure exerting device, the surrounding pressure exerting device is placed on the fixed plate, the output pipe is inlaid with exhaust pump, the output pipe is fixedly installed with liquid collecting pipe on the side away from the core holder, the bottom of the liquid collecting pipe is provided with electronic balance;The exhaust pump is inlaid with gas pipe, the gas pipe is provided with gas flow meter, the other end of the gas pipe is fixedly installed with gas bag.The utility model can simulate the process that carbon dioxide is in the core and is in the process of well, and can make liquid and carbon dioxide gas separate, can know the weight of liquid and the volume of gas respectively, more conveniently and accurately calculate oil rate, convenient to use.

[0003] The existing simulation experiment device is inconvenient to replace the carbon dioxide gas tank, and the carbon dioxide needs to be replaced in time after use, but the existing carbon dioxide gas tank and the gas inlet pipe are fixedly connected, and tools are needed for disassembly and assembly during disassembly and assembly, the process is more cumbersome, the workload is increased, the replacement efficiency is reduced, and the anti-dripping function is not provided, during the experiment, the oil flows out of the output pipe and falls into the collection bottle for collection, when the collection bottle is removed at the end of the experiment, a small amount of oil remaining in the output pipe will fall on the surface of the electronic balance, causing pollution, and the utility model is inconvenient to use, in order to solve the above problems, the utility model provides a shale oil carbon dioxide oil displacement simulation experiment device. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a shale oil carbon dioxide oil displacement simulation experiment device, which has the advantages of convenient replacement of carbon dioxide gas tank and anti-dripping function.

[0005] The technical scheme of the above technical purpose is realized by the following technical scheme: a shale oil carbon dioxide oil displacement simulation experiment device, which comprises a box body, a box door is mounted on the surface of the box body, a placing box is hingedly connected to the surface of the box body, a carbon dioxide gas tank is placed in the placing box, a mounting head is communicated with the top of the carbon dioxide gas tank, an air inlet pipe is slidably connected in the mounting head, a sliding cylinder is slidably connected to the surface of the mounting head, a first spring is arranged between the surface of the mounting head and the sliding cylinder, a triangular groove is formed in the inner wall of the sliding cylinder, a clamping rod is slidably connected to the inner wall of the triangular groove, a second spring is sleeved on the surface of the clamping rod, a clamping groove is formed in the surface of the air inlet pipe, and the clamping groove is clamped with the clamping rod.

[0006] By moving the sliding cylinder, the triangular groove is moved, the clamping rod is separated from the clamping groove under the action of the second spring, the air inlet pipe is taken out, then the mounting head on the new carbon dioxide gas tank is connected with the air inlet pipe, the triangular groove is reset by loosening the sliding cylinder, the clamping rod is clamped with the clamping groove, and the clamping rod is fixed, so that the purpose of conveniently replacing the carbon dioxide gas tank is achieved, the workload is reduced, and the replacement efficiency is improved.

[0007] The utility model further sets up: the other end of air inlet pipe extends to the inside of box body and is installed rock core holder, rock core holder's bottom is installed exhaust pump, exhaust pump's one end is installed output pipe, output pipe's inner wall fixedly sleeved with limit ring, output pipe's inner wall hingedly connected with fixed frame, fixed frame's inner wall rotatably sleeved with screw rod, screw rod's surface is connected with baffle, screw rod's top fixedly sleeved with first bevel gear, first bevel gear's surface is engaged with second bevel gear, second bevel gear's axle center fixedly sleeved with transmission shaft, and transmission shaft and output pipe's inner wall rotatably sleeved.

[0008] By rotating the rotating head before taking away the collecting bottle, the transmission shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the screw rod rotates to drive the baffle to move, the baffle is pressed against the limit ring, and the output pipe is blocked, so that the purpose of preventing dripping is achieved, the cleanliness of the electronic balance is ensured, and the practicability is improved.

[0009] The utility model further sets up: the inner wall of box body is hingedly connected with electric telescopic handle, and rock core holder is located between electric telescopic handle, the inner wall of box body is hingedly connected with fixed plate, the top of fixed plate is provided with surrounding pressure applicator, one end of exhaust pump is communicated with flowmeter, the bottom of flowmeter is installed with gas collecting bag, the inner wall of box body is hingedly connected with electronic balance, the top of electronic balance is placed with collecting bottle.

[0010] The technical scheme is adopted, the electric telescopic rod, the fixed plate, the confining pressure applicator, the flowmeter, the gas collecting bag, the electronic balance and the collecting bottle are arranged, and the experiment is facilitated.

[0011] The utility model further sets up: the surface of slide cylinder is equipped with antiskid line.

[0012] The technical scheme is adopted, the electric telescopic rod, the fixed plate, the confining pressure applicator, the flowmeter, the gas collecting bag, the electronic balance and the collecting bottle are arranged, and the experiment is facilitated.

[0013] The utility model further sets up: the surface of slide cylinder is equipped with antiskid line.

[0014] The technical scheme is adopted, the electric telescopic rod, the fixed plate, the confining pressure applicator, the flowmeter, the gas collecting bag, the electronic balance and the collecting bottle are arranged, and the experiment is facilitated.

[0015] The utility model further sets up: the surface of slide cylinder is equipped with antiskid line.

[0016] The technical scheme is adopted, the electric telescopic rod, the fixed plate, the confining pressure applicator, the flowmeter, the gas collecting bag, the electronic balance and the collecting bottle are arranged, and the experiment is facilitated.

[0017] The utility model further sets up: the surface of slide cylinder is equipped with antiskid line.

[0018] The technical scheme is adopted, the electric telescopic rod, the fixed plate, the confining pressure applicator, the flowmeter, the gas collecting bag, the electronic balance and the collecting bottle are arranged, and the experiment is facilitated.

[0019] The utility model further sets up: the surface of slide cylinder is equipped with antiskid line.

[0020] The technical scheme is adopted, the electric telescopic rod, the fixed plate, the confining pressure applicator, the flowmeter, the gas collecting bag, the electronic balance and the collecting bottle are arranged, and the experiment is facilitated.

[0021] The utility model has the advantages of the following:

[0022] 1. The utility model discloses a slide cylinder is removed to make the triangular groove move, and the triangular groove moves and makes the clamping rod separate from the clamping groove under the action of the second spring, and then the installation head on the new carbon dioxide gas tank is connected with the air inlet pipe, the slide cylinder is loosened to reset the triangular groove, the clamping rod is clamped with the clamping groove, and the carbon dioxide gas tank is fixed, so that the carbon dioxide gas tank is convenient to replace, the work amount is reduced, and the replacement efficiency is improved.

[0023] 2. The utility model discloses a take away collection bottle before, rotate the rotating head and make the transmission shaft drive second bevel gear rotate, and the first bevel gear is driven to rotate the screw rod by second bevel gear rotation, and the baffle is removed by screw rod rotation, and the baffle is pressed tightly with the limiting ring, and the output pipe orifice is plugged, thereby reach the purpose of anti -dripping function, guarantee the cleanness of electronic balance, improve practicality. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the utility model structure perspective drawing;

[0025] Figure 2 It is the utility model structure section view;

[0026] Figure 3 It is the utility part structure of the utility model local view section;

[0027] Figure 4 It is the utility model Figure 2 A place structure of the utility model enlarged view;

[0028] Figure 5 It is the utility model Figure 2 B place structure of the utility model enlarged view.

[0029] Fig. 1, box body;2, box door;3, place box;4, carbon dioxide gas tank;5, mounting head;6, inlet pipe;7, sliding cylinder;8, first spring;9, triangular groove;10, clamping rod;11, second spring;12, clamping groove;13, core holder;14, exhaust pump;15, output pipe;16, limiting ring;17, fixed frame;18, screw rod;19, baffle;20, first bevel gear;21, second bevel gear;22, transmission shaft;23, electric telescopic rod;24, fixed plate;25, confining pressure applicator;26, flowmeter;27, gas collecting bag;28, electronic balance;29, collection bottle;30, anti -skid pattern;31, sealing ring;32, sliding rod;33, sliding groove;34, rotating head;35, protective shell. DETAILED DESCRIPTION

[0030] The utility model will be further explained in detail in connection with the drawings.

[0031] Example 1:

[0032] Reference Figure 1 , Figure 2 , Figure 3 And Figure 4The utility model provides a kind of shale oil carbon dioxide displacement oil simulation experiment device, including box 1, the surface of box 1 is equipped with box door 2, the surface of box 1 is bolted to place box 3, carbon dioxide gas tank 4 is placed in the inside of place box 3, the top of carbon dioxide gas tank 4 is communicated with mounting head 5, the inside of mounting head 5 is slidably connected with air inlet pipe 6, the surface of mounting head 5 is slidably connected with sliding cylinder 7, first spring 8 is arranged between the surface of mounting head 5 and sliding cylinder 7, the inner wall of sliding cylinder 7 is equipped with triangular groove 9, clamping rod 10 is slidably connected in the inner wall of triangular groove 9, the surface of clamping rod 10 is equipped with second spring 11, the surface of air inlet pipe 6 is equipped with clamping groove 12, and clamping groove 12 is clamped with clamping rod 10, by moving sliding cylinder 7 to make triangular groove 9 move, triangular groove 9 moves to make clamping rod 10 be separated from clamping groove 12 under the action of second spring 11, air inlet pipe 6 is taken out, then the mounting head 5 on new carbon dioxide gas tank 4 is connected with air inlet pipe 6, sliding cylinder 7 is loosened to make triangular groove 9 reset, clamping rod 10 is clamped with clamping groove 12, it is fixed, to reach the purpose that carbon dioxide gas tank 4 is conveniently replaced, reduce the workload, improve the efficiency of replacement, before taking away collection bottle 29, rotating head 34 is rotated to make transmission shaft 22 drive second bevel gear 21 rotate, the rotation of second bevel gear 21 makes first bevel gear 20 drive screw 18 to rotate, the rotation of screw 18 drives baffle 19 to move, makes baffle 19 and limit ring 16 be pressed tightly, and the pipe orifice of output pipe 15 is blocked, to reach the purpose of anti-dripping function, guarantee the cleanness of electronic balance 28, improve practicality.

[0033] Reference Figure 2 The inner wall of box 1 is bolted with electric telescopic rod 23, and core holder 13 is located between electric telescopic rod 23, the inner wall of box 1 is bolted with fixed plate 24, and the top of fixed plate 24 is provided with confining pressure applicator 25, one end of exhaust pump 14 is communicated with flowmeter 26, the bottom of flowmeter 26 is equipped with gas collection bag 27, the inner wall of box 1 is bolted with electronic balance 28, and collection bottle 29 is placed on the top of electronic balance 28, by setting electric telescopic rod 23, fixed plate 24, confining pressure applicator 25, flowmeter 26, gas collection bag 27, electronic balance 28 and collection bottle 29, it is convenient for experiment.

[0034] Reference Figure 4 The surface of sliding cylinder 7 is equipped with anti-skid line 30, by setting anti-skid line 30, prevent hand slip, it is convenient to operate.

[0035] Reference Figure 4 And Figure 5 Sealing ring 31 is arranged between the inner wall of air inlet pipe 6 and mounting head 5 and between baffle 19 and limit ring 16, by setting sealing ring 31, improve the sealing property.

[0036] Example 2:

[0037] ReferenceFigure 2 And Figure 5 The other end of the air inlet pipe 6 extends to the inside of the box body 1 and is provided with a core holder 13, the bottom of the core holder 13 is provided with an exhaust pump 14, one end of the exhaust pump 14 is provided with an output pipe 15, the inner wall of the output pipe 15 is fixedly sleeved with a limiting ring 16, the inner wall of the output pipe 15 is bolted with a fixing frame 17, the inner wall of the fixing frame 17 is rotatably sleeved with a screw rod 18, the surface of the screw rod 18 is threadedly connected with a baffle 19, the top of the screw rod 18 is fixedly sleeved with a first bevel gear 20, the surface of the first bevel gear 20 is engaged with a second bevel gear 21, the shaft center of the second bevel gear 21 is fixedly sleeved with a transmission shaft 22, and the transmission shaft 22 is rotatably sleeved with the inner wall of the output pipe 15.

[0038] Reference Figure 5 The surface of the baffle 19 is bolted with a sliding rod 32, the other end of the sliding rod 32 is slidably connected with a sliding groove 33, and the sliding groove 33 is arranged in the inner wall of the output pipe 15. By arranging the sliding rod 32 and the sliding groove 33, the baffle 19 is prevented from deviating, and stability is ensured.

[0039] Reference Figure 5 One end of the transmission shaft 22 is bolted with a rotating head 34. By arranging the rotating head 34, the transmission shaft 22 is conveniently rotated.

[0040] Reference Figure 5 The top of the fixing frame 17 is bolted with a protective shell 35, and the first bevel gear 20 and the second bevel gear 21 are located in the inside of the protective shell 35. By arranging the protective shell 35, the first bevel gear 20 and the second bevel gear 21 are protected.

[0041] Brief use process: move the sliding cylinder 7, the sliding cylinder 7 drives the triangular groove 9 to move, the triangular groove 9 moves to make the clamping rod 10 separate from the clamping groove 12 under the action of the second spring 11, the air inlet pipe 6 is taken out, the carbon dioxide gas tank 4 is taken out from the placing box 3, a new carbon dioxide gas tank is placed in the placing box 3, then the mounting head 5 on the new carbon dioxide gas tank 4 is connected with the air inlet pipe 6, the sliding cylinder 7 is loosened to reset the triangular groove 9, the clamping rod 10 is clamped with the clamping groove 12, and it is fixed, so that the purpose of conveniently replacing the carbon dioxide gas tank 4 is achieved; before taking away the collecting bottle 29, the rotating head 34 is rotated, the rotating head 34 drives the transmission shaft 22 to rotate, the transmission shaft 22 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the screw rod 18 to rotate, the screw rod 18 drives the baffle 19 to move, and the baffle 19 is pressed against the limiting ring 16 to block the output pipe 15, when in use, after the collecting bottle 29 is placed on the electronic balance 28, the rotating head 34 is reversely rotated to make the baffle 19 move upward, so that the output pipe 15 is opened, and the experiment is carried out, so that the purpose of preventing dripping is achieved.

[0042] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. A person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as the modification is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A shale oil carbon dioxide flooding simulation experimental device, comprising a box (1), characterized in that: A door (2) is installed on the surface of the box body (1), a placement box (3) is bolted to the surface of the box body (1), a carbon dioxide gas cylinder (4) is placed inside the placement box (3), a mounting head (5) is connected to the top of the carbon dioxide gas cylinder (4), an air inlet pipe (6) is slidably sleeved inside the mounting head (5), a slide cylinder (7) is slidably sleeved on the surface of the mounting head (5), a first spring (8) is provided between the surface of the mounting head (5) and the slide cylinder (7), a triangular groove (9) is provided on the inner wall of the slide cylinder (7), a clamping rod (10) is slidably connected to the inner wall of the triangular groove (9), a second spring (11) is sleeved on the surface of the clamping rod (10), a clamping groove (12) is provided on the surface of the air inlet pipe (6), and the clamping groove (12) is clamped to the clamping rod (10).

2. A shale oil carbon dioxide flooding simulation experimental device according to claim 1, characterized in that: The other end of the air inlet pipe (6) extends to the interior of the box (1) and is installed with a core holder (13), an exhaust pump (14) is installed at the bottom of the core holder (13), an output pipe (15) is installed at one end of the exhaust pump (14), the inner wall of the output pipe (15) is fixedly sleeved with a limit ring (16), the inner wall of the output pipe (15) is bolted with a fixing frame (17), the inner wall of the fixing frame (17) is rotatably sleeved with a screw (18), the surface of the screw (18) is threadedly connected with a baffle (19), the top of the screw (18) is fixedly sleeved with a first bevel gear (20), the surface of the first bevel gear (20) is meshed with a second bevel gear (21), the axis of the second bevel gear (21) is fixedly sleeved with a transmission shaft (22), and the transmission shaft (22) is rotatably sleeved with the inner wall of the output pipe (15).

3. A shale oil carbon dioxide flooding simulation experimental device according to claim 2, characterized in that: The inner wall of the box (1) is bolted with an electric telescopic rod (23), and the core clamp (13) is located between the electric telescopic rod (23). The inner wall of the box (1) is bolted with a fixed plate (24), and a confining pressure applicator (25) is provided on the top of the fixed plate (24). One end of the exhaust pump (14) is connected to a flow meter (26), and an air collecting bag (27) is installed at the bottom of the flow meter (26). The inner wall of the box (1) is bolted with an electronic balance (28), and a collecting bottle (29) is placed on the top of the electronic balance (28).

4. A shale oil carbon dioxide flooding simulation experimental device according to claim 1, characterized in that: The surface of the slide cylinder (7) is provided with anti-slip grooves (30).

5. A shale oil carbon dioxide flooding simulation experimental device according to claim 2, characterized in that: Sealing rings (31) are provided between the air inlet pipe (6) and the inner wall of the mounting head (5), and between the baffle (19) and the limiting ring (16).

6. A shale oil carbon dioxide flooding simulation experimental device according to claim 2, characterized in that: A sliding rod (32) is bolted to the surface of the baffle (19), and the other end of the sliding rod (32) is slidably connected to a sliding groove (33), and the sliding groove (33) is opened on the inner wall of the output pipe (15).

7. A shale oil carbon dioxide flooding simulation experimental device according to claim 2, characterized in that: One end of the transmission shaft (22) is bolted with a rotating head (34).

8. A shale oil carbon dioxide flooding simulation experimental device according to claim 2, characterized in that: A protective shell (35) is bolted to the top of the fixing frame (17), and the first bevel gear (20) and the second bevel gear (21) are both located inside the protective shell (35).

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