A core collection and management device for oil exploration

Abstract

The invention discloses a core collection and management device for oil exploration, comprising: a base frame, a machine base, a storage tube, a partition seat, a cleaning chamber, a core test chamber and a pushing unit; wherein the storage tube is horizontally arranged above the base frame; a partition seat is arranged in the center of the storage tube, and the partition seat divides the storage tube into two chambers on the left and right, and the chamber close to the machine base is the core test chamber, and the chamber far from the machine base is the cleaning chamber; a pushing unit is axially slidably arranged in the storage tube, and the pushing unit is used to horizontally carry the core and send the core into the cleaning chamber or the core test chamber as required; a sample delivery port is opened on the storage tube at the position of the core test chamber; the invention can integrate cleaning and testing, and perform automatic testing on the core, so that the core can be classified according to the porosity data, and then archived in the corresponding database or storage system, avoiding manual intervention and improving the collection and classification efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum exploration, and in particular is a core collection and management device in petroleum exploration. Background Art

[0002] At present, before oil extraction, it is usually necessary to sample and explore the rock formations in the mining area. After the cores are collected, they are often directly stored temporarily in a collection box to ensure the integrity of the cores. However, in the prior art, the cores in the collection box still need to be manually cleaned after being taken out, and then measured and marked by measuring tools, which not only increases the workload, but also damages the cores due to improper cleaning operations. However, the invention patent with publication number CN118483018A adopts a cleaning mechanism to automatically wash the surface of the cores, which reduces the amount of manual labor and has a higher cleaning efficiency.

[0003] Although the cleaned cores can be photographed and recorded by a camera, it can only provide visual information of the core images and cannot provide important information such as the porosity and pore size distribution inside the cores. As a result, when the cores are subsequently collected and stored, they still need to be measured and then collected and classified. The process is cumbersome and inefficient.

[0004] Therefore, it is necessary to provide a core collection and management device for oil exploration to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a core collection and management device for oil exploration, comprising: a base frame, a machine base, a storage pipe, a partition seat, a cleaning chamber, a core test chamber and a pushing unit; wherein the storage pipe is horizontally arranged above the base frame, two brackets are symmetrically fixed on the base frame, both ends of the storage pipe are respectively connected to the brackets, and the machine base is installed at one end of the base frame;

[0006] A partition seat is arranged in the center of the storage tube, and the partition seat divides the storage tube into two chambers on the left and right sides, and the chamber close to the machine base is the core test chamber, and the chamber away from the machine base is the cleaning chamber; a pushing unit is axially slidably arranged in the storage tube, and the pushing unit is used to horizontally carry the core and send the core into the cleaning chamber or the core test chamber as needed;

[0007] The storage tube is provided with a sample delivery port located at the core test chamber for taking and placing the cores. A plate cover is rotatably installed at the sample delivery port through a hinge, and the plate cover is sealed and matched with the storage tube;

[0008] The pushing unit initially sends the core into the cleaning chamber, which cleans the surface of the collected core and removes soil and residual contaminants on the surface of the core. Then the core testing chamber injects saturated brine into the vacuumed core by liquid injection. A nuclear magnetic resonance measuring instrument is provided outside the storage tube, which performs nuclear magnetic resonance measurement on the core containing saturated brine to obtain the porosity of the core. The tested core is sent back to the cleaning chamber through the pushing unit for cleaning and drying. The label information of the taken out core is updated and the core is collected and managed according to the parameters of core specification, type and porosity.

[0009] Further, preferably, the pushing unit comprises:

[0010] There are two fixed plates arranged symmetrically, both of which are horizontally slidably arranged in the storage tube, and a plurality of guide rollers are horizontally connected between the fixed plates;

[0011] A shaft end cover is fixed at both ends of the storage tube, wherein a shaft tube is rotatably connected in the shaft end cover close to the machine base, a bearing seat is fixed on the base frame, and the shaft tube is coaxially connected in the bearing seat;

[0012] A sealing ring 1 is coaxially fixed on the shaft end cover, a sealing disc is fixed on the fixed disc, and the sealing disc is sealingly assembled with the sealing ring 1;

[0013] A threaded rod is slidably connected to the shaft tube through thread engagement, and one end of the threaded rod is coaxially fixed to the fixed plate;

[0014] The transmission wheel is fixed on the side of the shaft tube away from the shaft end cover. A gear driving part is installed in the machine base. The output end of the gear driving part is connected to the transmission wheel through a transmission belt for transmission.

[0015] Further, as a preference, two sealing rings are fixed to both side end surfaces of the separation seat; the sealing discs are configured in two and are symmetrically fixed to both side end surfaces of each of the fixed discs;

[0016] When the sealing disk on one of the fixed disks is in sealing cooperation with the sealing ring 1, the sealing disk on the other fixed disk is in sealing cooperation with the sealing ring 2 on the separating seat.

[0017] Further, as a preference, two limit plates are slidably adjusted on the guide roller, and the two limit plates abut against two ends of the core;

[0018] A driving sleeve is rotatably connected to the center of the fixed disk on the right side, and a main gear is coaxially fixed to the driving sleeve; each of the guide rollers is rotatably connected to the fixed disk, and a transmission tooth is fixed to one end of the guide roller, and the main gear meshes with each of the transmission teeth;

[0019] A main shaft is rotatably connected in the shaft end cover away from the side of the machine base, and a shaft rod is slidably connected in the main shaft, and one end of the shaft rod is connected and fixed to the driving sleeve; a mounting frame is provided on one side of the base frame, and a rotating part is provided on the mounting frame, and the output end of the rotating part is connected to the main shaft so that the driving sleeve can be controlled to rotate through the shaft rod in the main shaft.

[0020] Further, as a preference, a plurality of ring bins are evenly arranged in the bin wall of the cleaning bin, each of the ring bins is connected with a connecting pipe below, a water supply pipe is arranged outside the storage pipe, the water supply pipe is connected with the ring bin through each of the connecting pipes, and a plurality of nozzles are arranged on the bin wall of the cleaning bin at each of the ring bins, and the nozzles are connected with the ring bins correspondingly;

[0021] A heating unit is arranged on the wall of the cleaning bin between two adjacent ring bins, and a sewage pipe is connected to the storage pipe.

[0022] Further, as a preference, a vacuum pump is provided on the storage tube outside the core test chamber, the vacuum pump is used to evacuate the core test chamber, the core test chamber is also connected to a liquid supply pump via a liquid inlet pipe, and a liquid discharge pipe is also provided on the storage tube at the core test chamber.

[0023] Furthermore, preferably, a plurality of expansion bladders are evenly arranged on the wall of the core testing chamber, and each of the expansion bladders is independently regulated in expansion and contraction.

[0024] Further, preferably, the expansion bladder is filled with water, and the outside of the expansion bladder is connected to a water pipe.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the present invention, the collected cores can be transferred between the cleaning chamber and the core testing chamber as needed through a pushing unit, wherein the cores can enter the core testing chamber after being fully surface cleaned and decontaminated in the cleaning chamber, and the core testing chamber injects saturated brine into the cores so that the nuclear magnetic resonance measuring instrument can measure the porosity of the cores, thereby obtaining detailed information on the pore structure inside the cores, including porosity, pore size distribution, etc., so that the cores can be subsequently classified according to the porosity data and archived in a corresponding database or storage system, avoiding manual intervention and improving the efficiency of collection and classification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 is a cross-sectional view of the present invention;

[0029] Figure 3It is a structural schematic diagram of the pushing unit in the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the fixed plate, the guide roller and the limit plate in the present invention;

[0031] Figure 5 It is a schematic diagram of the meshing transmission of the main gear and the transmission teeth in the present invention;

[0032] Figure 6 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0033] Figure 7 It is a schematic diagram of the structure of the cleaning bin in the present invention;

[0034] In the figure: 1. base frame; 11. bracket; 12. plate cover; 2. machine base; 21. shaft tube; 22. bearing seat; 23. transmission wheel; 24. threaded rod; 3. storage tube; 31. cleaning chamber; 32. core test chamber; 33. ring chamber; 34. water supply pipe; 35. nozzle; 36. heating unit; 37. vacuum pump; 38. liquid supply pump; 39. discharge pipe; 310. sewage pipe; 4. push unit; 41. fixed plate; 42. guide roller; 43. shaft end cover; 44. sealing plate; 45. sealing ring 2; 46. sealing ring 1; 47. limit plate; 48. drive sleeve; 49. main gear; 410. transmission gear; 5. partition seat; 6. main shaft; 61. shaft rod; 62. mounting frame; 7. expansion bag. DETAILED DESCRIPTION

[0035] See also Figure 1-Figure 7 In an embodiment of the present invention, a core collection and management device in oil exploration includes: a base frame 1, a machine base 2, a storage pipe 3, a partition seat 5, a cleaning chamber 31, a core test chamber 32 and a pushing unit 4; wherein the storage pipe 3 is horizontally arranged above the base frame 1, two brackets 11 are symmetrically fixed on the base frame 1, both ends of the storage pipe 3 are respectively connected to the brackets 11, and the machine base 2 is installed at one end of the base frame 1;

[0036] A partition seat 5 is arranged at the center of the storage tube 3, and the partition seat 5 divides the storage tube 3 into two chambers on the left and right, and the chamber close to the machine base 2 is the core test chamber 32, and the chamber away from the machine base 2 is the cleaning chamber 31; a pushing unit 4 is axially slidably arranged in the storage tube 3, and the pushing unit 4 is used to horizontally support the core and send the core to the cleaning chamber 31 or the core test chamber 32 as needed; wherein, the core can go through the steps of "cleaning-testing-cleaning" before collection and management, realizing the integration of core cleaning and testing, reducing the number of times the sample is transferred between different equipment, thereby improving the processing speed, and at the same time reducing the influence of external pollutants on the core sample to a certain extent.

[0037] The storage tube 3 is provided with a sample delivery port at the position of the core test chamber 32 for taking and placing the core. A plate cover 12 is rotatably installed at the sample delivery port through a hinge, and the plate cover 12 is sealed with the storage tube 3.

[0038] The pushing unit 4 initially sends the core into the cleaning chamber 31, and the cleaning chamber 31 cleans the surface of the collected core and removes the soil and residual contaminants on the surface of the core. Then the core test chamber 32 injects saturated brine into the vacuumed core by liquid injection. The storage tube 3 is provided with a nuclear magnetic resonance measuring instrument, which performs nuclear magnetic resonance measurement on the core containing saturated brine to obtain the core porosity; the tested core is sent to the cleaning chamber again through the pushing unit 4 for cleaning and drying, and the label information of the removed core is updated and collected and managed according to the core specifications, types, and porosity parameters. The entire process from cleaning to testing to secondary cleaning is completed automatically, reducing the need for manual intervention, greatly improving the processing speed, and reducing the impact of external contaminants on core samples; the updated label information can be classified and managed according to parameters such as core specifications, types, and porosity, which is convenient for subsequent research and application.

[0039] In this embodiment, the pushing unit 4 includes:

[0040] There are two fixed plates 41 arranged symmetrically, and both of the two fixed plates 41 are horizontally slidably arranged in the storage tube 3. A plurality of guide rollers 42 are horizontally connected between the fixed plates 41; the guide rollers 42 are arranged in an arc shape to facilitate the bearing of the core;

[0041] The shaft end cover 43 is fixed at both ends of the storage tube 3, wherein the shaft end cover 43 close to the machine base 2 is rotatably connected with the shaft tube 21, and the base frame 1 is fixed with a bearing seat 22, and the shaft tube 21 is coaxially connected with the bearing seat 22;

[0042] A sealing ring 46 is coaxially fixed on the shaft end cover 43. A sealing disk 44 is fixed on the fixed disk 41. The sealing disk 44 is sealed and assembled with the sealing ring 46.

[0043] The threaded rod 24 is slidably connected to the shaft tube 21 through thread engagement, and one end of the threaded rod 24 is coaxially fixed to the fixed plate 41;

[0044] The transmission wheel 23 is fixed on the side of the shaft tube 21 away from the shaft end cover 43. A gear driving unit (not shown in the figure) is installed in the machine base 2. The output end of the gear driving unit is connected to the transmission wheel 23 through a transmission belt. That is to say, the core can be placed on the guide roller 42, and then the shaft tube 21 is driven by the gear driving unit to rotate forward and reverse, so that the threaded rod 24 can push the fixed plate 41 axially. It should be noted that the fixed plate 41 only slides in the storage tube 3 and does not rotate synchronously with the threaded rod 24.

[0045] As a preferred embodiment, the two side end surfaces of the partition seat 5 are fixed with sealing rings 45; the sealing disks 44 are configured in two and are symmetrically fixed on the two side end surfaces of each of the fixed disks 41;

[0046] When the sealing disk 44 on one of the fixed disks 41 is in sealing cooperation with the sealing ring 1 46, the sealing disk 44 on the other fixed disk 41 is in sealing cooperation with the sealing ring 2 45 on the partition seat 5, that is, when the core and the guide roller 42 are in the core test chamber 32, the sealing disk 44 on the fixed disk 41 close to the machine base 2 is in sealing contact with the sealing ring 1 46 on the shaft end cover 43, and the sealing disk 44 on the other fixed disk 41 is in sealing contact with the sealing ring 2 45 on the partition seat 5, so that the core test chamber 32 forms a closed space; and when the core and the guide roller 42 are in the cleaning chamber 31, the sealing disk 44 on the fixed disk 41 away from the machine base 2 is in sealing contact with the sealing ring 1 46 on the shaft end cover 43, and the sealing disk 44 on the other fixed disk 41 is in sealing contact with the sealing ring 2 45 on the partition seat 5, so that the cleaning chamber 31 forms a closed space, so as to clean or test the core.

[0047] In this embodiment, two limit plates 47 are slidably arranged on the guide roller 42, and the two limit plates 47 are against the two ends of the core;

[0048] A driving sleeve 48 is rotatably connected to the center of the fixed disk 41 on the right side, and a main gear 49 is coaxially fixed to the driving sleeve 48; each of the guide rollers 42 is rotatably connected to the fixed disk 41, and a transmission tooth 410 is fixed to one end of the guide roller 42, and the main gear 49 is meshed with each of the transmission teeth 410; thus, each of the guide rollers 42 can be driven to rotate synchronously through the main gear 49, so that the core generates a rotational motion;

[0049] The shaft end cover 43 away from the side of the base 2 is rotatably connected with the main shaft 6, and the main shaft 6 is slidably connected with the shaft rod 61, and one end of the shaft rod 61 is connected and fixed to the drive sleeve 48; a mounting frame 62 is provided on one side of the base 1, and a rotating part is provided on the mounting frame 62, and the output end of the rotating part is connected to the main shaft 6, so as to control the rotation of the drive sleeve 48 through the shaft rod 61 in the main shaft 6, wherein the core can be driven by the main shaft 6 to rotate each guide roller 42 when it is in the cleaning chamber 31 or the core test chamber 32, on the one hand, it ensures that the core surface is completely covered and cleaned, and on the other hand, it can make it easier to discharge the bubbles in the core during the core injection test, reducing the influence of bubbles on the measurement results, and at the same time, it can help the liquid to better penetrate into the tiny pores of the core, especially for porous media or low permeability cores, rotation can accelerate the penetration process of the liquid, ensure that the core reaches a higher saturation, shorten the entire test time, and improve work efficiency. Among them, the rotation speed can also be adjusted by the control system to meet the needs of different core samples. Generally, lower rotation speeds are more suitable for porous media, while higher rotation speeds are suitable for low permeability cores. At the same time, unidirectional or bidirectional rotation can be used for experimental testing according to the core characteristics.

[0050] In this embodiment, a plurality of ring bins 33 are evenly arranged in the bin wall of the cleaning bin 31, and the lower parts of the ring bins 33 are connected with connecting pipes. A water supply pipe 34 is arranged outside the storage pipe 3, and the water supply pipe 34 is connected with the ring bins 33 through the connecting pipes. A plurality of nozzles 35 are arranged on the bin wall of the cleaning bin 31 at each of the ring bins 33, and the nozzles 35 are connected with the ring bins 33 accordingly.

[0051] A heating unit 36 ​​is provided on the wall of the cleaning chamber 31 between two adjacent ring chambers 33 to provide surface heating and drying for the cleaned cores, wherein the heating unit 36 ​​may be a resistance heater or an electric heating film, etc. A sewage pipe 310 is also connected to the storage pipe 3.

[0052] In this embodiment, a vacuum pump 37 is provided on the storage tube 3 outside the core test chamber 32, and the vacuum pump 37 is used to evacuate the core test chamber 32. The core test chamber 32 is also connected to a liquid supply pump 38 through a liquid inlet pipe. The liquid supply pump 38 can transport saturated brine into the core test chamber 32, and a liquid discharge pipe 39 is also provided on the storage tube 3 at the core test chamber 32.

[0053] As a preferred embodiment, a plurality of expansion bladders 7 are evenly arranged on the wall of the core test chamber 32, and each of the expansion bladders 7 is independently expandable and contractible.

[0054] In this embodiment, the expansion bladder 7 is filled with water and is connected to a water pipe on the outside, wherein the multiple expansion bladders 7 can pressurize the saturated brine outside the core under expansion and contraction adjustment so that the saturated brine can quickly penetrate into the core.

[0055] Specifically, the collected cores are temporarily stored in a collection box, and the staff takes out each section of the core from the collection box in turn. After preliminary photographing and marking, the core can be placed on the guide roller 42 through the sample delivery port. After the plate cover 12 is sealed and buckled, the cleaning chamber 31 in the storage tube 3 and the core test chamber 32 form a closed space; the core is first sent into the cleaning chamber 31 under the horizontal push of the pushing unit, and the surface of the core is sprayed and cleaned from above by multiple nozzles 35 in the cleaning chamber 31. At the same time, the guide roller 42 can drive the core to rotate continuously under rotation. The diameter of the guide roller 42 is 50-100mm, and the rotation speed is 10-30 rpm, so as to ensure that the core is completely covered and cleaned (the cleaning time is 10min). After cleaning, the core is gradually heated in the heating unit 36 ​​to dry the lower surface, and the heating temperature is set to 40-80°C. Then the pushing unit 4 sends it to the core test chamber 32. At this time, the liquid supply pump 38 can transport saturated brine into the core test chamber 32, and the flow rate, pressure, temperature and other parameters are monitored by the external monitor; after the core is injected with liquid, a nuclear magnetic resonance measurement is performed on it by a nuclear magnetic resonance measuring instrument to obtain the core porosity, and then it is sent to the cleaning chamber 31 for cleaning again by the pushing unit 4 to remove the saturated brine on the surface; finally, the core that has been cleaned twice can be taken out from the sample delivery port, and the staff will record its label again, and the core will be collected and managed according to its specifications, type, porosity and other parameters.

[0056] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A core collection and management device for oil exploration, characterized in that: It includes: A base frame (1), a machine base (2), a storage tube (3), a partition seat (5), a cleaning chamber (31), a core test chamber (32), and a pushing unit (4); wherein the storage tube (3) is horizontally arranged above the base frame (1), two brackets (11) are symmetrically fixed on the base frame (1), two ends of the storage tube (3) are respectively connected to the brackets (11), and the machine base (2) is installed at one end of the base frame (1); A partition seat (5) is arranged at the center of the storage tube (3), and the partition seat (5) divides the storage tube (3) into two chambers on the left and right, and the chamber on the side close to the machine base (2) is a core test chamber (32), and the chamber on the side away from the machine base (2) is a cleaning chamber (31); a pushing unit (4) is axially slidably arranged in the storage tube (3), and the pushing unit (4) is used to horizontally support the core and send the core into the cleaning chamber (31) or the core test chamber (32) as required; The storage tube (3) is provided with a sample delivery port located at the core test chamber (32) for taking and placing the core, and a plate cover (12) is rotatably mounted at the sample delivery port via a hinge, and the plate cover (12) is in sealing cooperation with the storage tube (3); The pushing unit (4) initially sends the core into the cleaning chamber (31), and the cleaning chamber (31) cleans the surface of the collected core and removes soil and residual contaminants on the surface of the core. Then, the core testing chamber (32) injects saturated brine into the vacuumed core by means of liquid injection. A nuclear magnetic resonance measuring instrument is provided outside the storage tube (3), and the nuclear magnetic resonance measuring instrument performs nuclear magnetic resonance measurement on the core containing saturated brine, thereby obtaining the porosity of the core. The tested core is sent back to the cleaning chamber through the pushing unit (4) for cleaning and drying, and the label information of the removed core is updated and recorded and managed according to the parameters of core specification, type, and porosity. The pushing unit (4) comprises: Two fixed disks (41) are symmetrically arranged, and both of the two fixed disks (41) are horizontally slidably disposed in the storage tube (3), and a plurality of guide rollers (42) are horizontally connected between the fixed disks (41); A shaft end cover (43) is fixed at both ends of the storage tube (3), wherein a shaft tube (21) is rotatably connected inside the shaft end cover (43) on the side close to the machine base (2), a bearing seat (22) is fixed on the base frame (1), and the shaft tube (21) is coaxially connected to the bearing seat (22); A sealing ring (46) is coaxially fixed on the shaft end cover (43); a sealing disk (44) is fixed on the fixed disk (41); the sealing disk (44) and the sealing ring (46) are sealingly assembled; A threaded rod (24) is slidably connected to the shaft tube (21) through threaded engagement, and one end of the threaded rod (24) is coaxially fixed to the fixed plate (41); A transmission wheel (23) is fixed on a side of the shaft tube (21) away from the shaft end cover (43); a gear drive unit is installed in the machine base (2); an output end of the gear drive unit is connected to the transmission wheel (23) via a transmission belt for transmission; Sealing rings 2 (45) are fixed to both side end surfaces of the partition seat (5); the sealing discs (44) are configured in two and are symmetrically fixed to both side end surfaces of the fixed discs (41); When the sealing disc (44) on one of the fixed discs (41) is in sealing cooperation with the sealing ring 1 (46), the sealing disc (44) on the other fixed disc (41) is in sealing cooperation with the sealing ring 2 (45) on the partition seat (5).

2. A core collection and management device for oil exploration according to claim 1, characterized in that: The guide roller (42) is provided with two limit plates (47) for sliding adjustment, and the two limit plates (47) are against the two ends of the core; the fixed plate (41) located on the right side is centrally connected to a driving sleeve (48), and a main gear (49) is coaxially fixed to the driving sleeve (48); Each of the guide rollers (42) is rotatably connected to the fixed disk (41), and a transmission tooth (410) is fixed to one end of the guide roller (42), and the main gear (49) is meshed with each of the transmission teeth (410); A main shaft (6) is rotatably connected in the shaft end cover (43) at a side away from the machine base (2), a shaft rod (61) is slidably connected in the main shaft (6), one end of the shaft rod (61) is connected and fixed to the drive sleeve (48); a mounting frame (62) is provided on one side of the base frame (1), a rotating part is provided on the mounting frame (62), and an output end of the rotating part is connected to the main shaft (6) so as to control the rotation of the drive sleeve (48) through the shaft rod (61) in the main shaft (6).

3. The core collection and management device for oil exploration according to claim 1, characterized in that: A plurality of ring bins (33) are evenly arranged in the bin wall of the cleaning bin (31), each of the ring bins (33) is connected to a connecting pipe below, a water supply pipe (34) is arranged outside the storage pipe (3), the water supply pipe (34) is connected to the ring bins (33) through each of the connecting pipes, and a plurality of spray heads (35) are arranged on the bin wall of the cleaning bin (31) at each of the ring bins (33), the spray heads (35) being connected to the ring bins (33) accordingly; A heating unit (36) is provided on the wall of the cleaning chamber (31) between two adjacent ring chambers (33), and a sewage discharge pipe (310) is also connected to the storage pipe (3).

4. The core collection and management device for oil exploration according to claim 1, characterized in that: A vacuum pump (37) is provided on the storage pipe (3) outside the core test chamber (32), and the vacuum pump (37) is used to evacuate the core test chamber (32). The core test chamber (32) is also connected to a liquid supply pump (38) via a liquid inlet pipe, and a liquid discharge pipe (39) is also provided on the storage pipe (3) at the core test chamber (32).

5. The core collection and management device for oil exploration according to claim 1, characterized in that: A plurality of expansion bags (7) are evenly arranged on the wall of the core test chamber (32), and each expansion bag (7) is independently expandable and contractible.

6. A core collection and management device for oil exploration according to claim 5, characterized in that: The expansion bag (7) is filled with water, and its exterior is connected to a water pipe.

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