CN114933094B

CN114933094B - Crude oil sample storage device and use method thereof

Info

Publication number: CN114933094B
Application number: CN202210855611.9A
Authority: CN
Inventors: 高云宝; 王军钢; 刘善强; 许庆言; 张贡权; 陈书淳; 曲晓文; 孙宝齐; 乔雷; 马晓波; 曲文静
Original assignee: Shandong Gangyuan Pipeline Logistics Co ltd
Current assignee: Shandong Gangyuan Pipeline Logistics Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-09-30
Anticipated expiration: 2042-07-21
Also published as: CN114933094A

Abstract

The invention discloses a crude oil sample storage device and a using method thereof, and relates to the technical field of storage tanks. A crude oil sample storage device comprises a crude oil storage part and a sample leading-in component, wherein the inner sides of the crude oil storage part and the sample leading-in component are respectively provided with a sampling port self-sealing component, and the bottom of the sample leading-in component is provided with a discharge monitoring component and an end sealing plug; a method for using a crude oil sample storage device comprises a crude oil sample input method, an oil pipeline extraction method, a surrounding sealing disc sealing method, a leakage adsorption method and a method for detecting leakage by using a liquid level overflow monitoring standard. From the closure subassembly through the thief hatch, opening diameter when reducing end closure stopper and the leading-in subassembly sample of sample to reduce the entering of impurity in the sampling environment, can accomplish simultaneously fluid input sample back, the accessible resets and realizes sealing the mouth certainly of flaring end and flaring seat open end, accomplishes quick separation, improves in the sample storage flow, with the leading-in crude oil storage piece in-process closure of sample.

Description

Crude oil sample storage device and use method thereof

Technical Field

The invention relates to a crude oil sample storage device and a using method thereof, and belongs to the technical field of storage tanks.

Background

The storage process for crude oil sample detection mainly comprises three stages, namely sample input, sample transportation and sample taking from a storage device before experiment, wherein the sample input in the first stage refers to inputting a crude oil sample into a crude oil storage part in a crude oil sampling area, and because the impurity in the crude oil exploitation sampling environment is obviously increased compared with the impurity in an experiment chamber during later detection, when the crude oil is sampled and delivered to a sample storage device, a large amount of impurity is easy to enter along with the stored sample through the open end of the sample storage device, the influence on the detection accuracy can be increased, and meanwhile, when the crude oil is sampled in an underground environment after exploitation, the sampling area has a large amount of dust and is relatively wet, and the surface of the crude oil storage device can be directly polluted; the second stage of sample transportation refers to long-distance transportation performed after sampling a crude oil sample, during transportation, because an oil transportation port of a conventional storage is usually arranged at a low position, in the way of sample storage and transportation, in a state of limited tightness, an original sample is easy to leak due to shaking, especially when the crude oil sample is in a marine transportation process, the possibility of leakage of the crude oil sample is increased due to the increase of shaking amount caused by fluctuation of a sea transport ship, namely, the crude oil sample is in a non-sealed state, during long-term transportation, the crude oil sample stored in the non-sealed state for a long time generates excessive oxidation reaction, the accuracy of a sample detection result is directly influenced, so that the accuracy requirement during sample detection cannot be met, during transportation after sampling, the crude oil is directly mixed with dirty matters after leaking, and subsequent experimenters are not favorable for intuitively judging whether the crude oil leaks in the transportation process. To this end, we propose a crude oil sample storage device.

Disclosure of Invention

The invention mainly aims to provide a crude oil sample storage device, which solves the problems of sealing during the sampling process and the storage and transportation process of a crude oil sample and quick judgment on whether crude oil leaks before an experiment after transportation is finished.

In order to achieve the purpose, the invention adopts the technical scheme that: a crude oil sample storage device comprises a crude oil storage part, a sample introduction component and an end closure plug, wherein the inner sides of the sample introduction component and the end closure plug are respectively provided with a sampling port self-closure component, and the bottom of the sample introduction component is provided with a discharge monitoring component and the end closure plug;

the sampling port self-sealing assembly comprises an outer fixed arc disc, an inner joint sealing piece and a flexible connecting piece, wherein the outer fixed arc disc is fixedly connected with the inner joint sealing piece through the flexible connecting piece;

the leakage monitoring assembly is fixedly connected with the sample leading-in assembly and comprises a conduction pipe, an oil adsorption ring, a plurality of guide seats and a liquid level overflow monitoring mark bonded on the inner side of the guide seats, the liquid level overflow monitoring mark is oil detection test paper in a qualitative test paper category, the oil adsorption ring is sleeved on the outer side of the conduction pipe, and the guide seats are fixedly connected to the outer wall of the conduction pipe in an annular shape.

The sample introducing assembly comprises a flaring seat and a surrounding sealing disk, a rotating shaft is rotatably connected to the inner side of the flaring seat, and the surrounding sealing disk is arranged on the flaring seat through the rotating shaft and is positioned above the sampling port self-sealing assembly.

The invention is further improved in that the bottom parts of the outer fixed arc disc and the inner joint sealing piece are respectively provided with an inclined supporting rod and a connecting supporting rod, the inclined supporting rod is fixed below the outer fixed arc disc, the connecting supporting rod is obliquely supported between the inner joint sealing piece and the inclined supporting rod, two ends of the connecting supporting rod are respectively hinged with the inner joint sealing piece and the inclined supporting rod, and an elastic piece is further connected between the inclined supporting rod and the connecting supporting rod.

The invention is further improved in that the guide seat is provided with a guide opening, and the bottom end of the liquid level overflow monitoring target penetrates through the guide opening and is in contact with the oil liquid adsorption ring.

The invention is further improved in that a flared end is integrally formed at the top of the crude oil storage part, and a gradual curve sealing ring for keeping the sealing property after being plugged inside the flared end is fixedly connected to the outer side of the end closing plug.

In a further improvement of the invention, a method of using a crude oil sample storage device comprises:

(a) when a crude oil sample is input, firstly, an oil pipeline penetrates through the inner side of the sample introduction assembly until the oil pipeline enters the inner side of the crude oil storage part, and at the moment, the inner fit closing pieces positioned on the inner sides of the end closing plug and the flaring seat are pressed by the oil pipeline in a contact manner and turned down to form a channel for the oil pipeline to enter the crude oil storage part;

(b) after the oil liquid sample is input, the oil pipeline is extracted, the inner joint sealing piece is reset to be in a horizontal state under the action of elastic restoring force of the elastic piece, and the automatic sealing of the flaring end and the opening end of the flaring seat is realized;

(c) then the crude oil storage part is rotated to the upper end of the flaring seat around the sealing disc to realize the sealing of the crude oil storage part;

(d) rock because of crude oil storage piece in crude oil sample transportation way, when crude oil sample spills from the clearance between end closure stopper and the flaring end, adsorb the crude oil of the part that spills through fluid adsorption ring, simultaneously because the inboard liquid level of guide holder overflows the monitoring mark and the laminating of fluid adsorption ring, the liquid level overflows the monitoring mark and can produce under the influence of the conduction immersion after fluid adsorption ring adsorbs fluid and change colour, before sample detection, be used for judging the sign whether revealing from crude oil storage piece as crude oil sample, make operating personnel learn whether the fluid in the storage device produces the leakage because of the leakproofness is not enough in long-term transportation way, guarantee to detect the sample and keep detecting required standard all the time.

The beneficial effects of the invention are:

1. compared with the prior art, the invention inputs the crude oil sample into the crude oil storage part in the sampling area, and in the process of finishing preliminary sampling and storage, the opening diameter of the end closing plug and the sample leading-in component during sampling is reduced through the sampling opening self-closing component, so that the entering of impurities in the sampling environment is reduced, and meanwhile, after the oil liquid is input and sampled, the quick separation of the self-sealing openings of the flaring end and the flaring seat opening end can be realized through resetting, and the sealing performance in the process of leading the sample into the crude oil storage part in the sample storage flow is improved, so that the detection accuracy of the subsequent sample is further kept;

2. when the sample is guided into the crude oil storage part for carrying out closed transportation link, the crude oil storage part shakes, and the crude oil sample overflows from a gap between the end closing plug and the flaring end, crude oil at the overflowing part is adsorbed by the oil liquid adsorption ring, so that the crude oil sample can be prevented from directly leaking to the surface wall of the crude oil storage part, and the direct exposure phenomenon is prevented;

3. in order to avoid the influence of dirt on the surface of a crude oil storage part in a dust and moisture environment of a sampling area, so that a subsequent experimenter cannot intuitively judge whether crude oil leaks, the invention uses a built-in leakage monitoring component to assist in judging whether crude oil leaks, pulls out an expanding seat from a position above an end of an expanding opening after reaching an experimental environment, observes a liquid level overflow monitoring mark, and is an oil detection test paper in a qualitative test paper category because the liquid level overflow monitoring mark on the inner side of a guide seat is attached to an oil absorption ring, and can absorb excessive oil in the oil absorption ring under the adsorption saturation state of the oil absorption ring, the liquid level overflow monitoring mark is changed in deep blue or light blue when contacting hydrocarbon in the crude oil, and the oil absorption of the liquid level overflow monitoring mark is displayed by the size of a blue area, if crude oil does not leak, then the test paper can not become wet nor change colour to can make the inspector accessible observe the excessive monitoring target colour of liquid level and know fast whether the fluid sample in storage device produces the leakage on the way of long-term transportation, and then guarantee that the sample that detects keeps the required standard of detection all the time.

Drawings

FIG. 1 is a schematic diagram of a crude oil sample storage unit according to the present invention;

FIG. 2 is an exploded view of a sample introduction assembly, a sample port self-sealing assembly, a leak monitoring assembly, and a tip closure plug of a crude oil sample storage device according to the present invention;

FIG. 3 is a schematic structural view of a self-sealing assembly of a sampling port in a crude oil sample storage device according to the present invention;

FIG. 4 is an isometric view of a crude oil sample storage unit of the present invention;

FIG. 5 is an isometric view of a leak monitoring assembly and a closure head plug in a crude oil sample storage unit of the present invention;

FIG. 6 is a front sectional view of a sample port self-sealing assembly in a crude oil sample storage unit of the present invention;

in the figure: 1. a crude oil storage; 11. flaring ends; 2. a sample introduction assembly; 21. a flaring seat; 22. a surrounding closing disk; 23. a rotating shaft; 3. the sampling port is self-sealing component; 31. an outer fixed arc disc; 311. leaning towards the support rod; 32. an inner conformable closure; 321. connecting a support rod; 33. a flexible connecting sheet; 4. a spill monitoring assembly; 41. a conduction pipe; 42. an oil adsorption ring; 43. a guide seat; 431. a guide port; 44. a liquid level overflow monitoring mark; 5. an end closure plug; 51. gradual change curve sealing ring.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.

The first embodiment is as follows:

referring to fig. 1-6, the device comprises a crude oil storage unit 1, a sample introduction assembly 2 and a head closing plug 5, wherein the sample introduction assembly 2 and the head closing plug 5 are respectively provided with a sampling port self-closing assembly 3 at the inner side, a leakage monitoring assembly 4 and a head closing plug 5 are installed at the bottom of the sample introduction assembly 2, after a crude oil sample is input, the end closing plug 5 and the sample introducing component 2 are automatically closed through the sampling port self-closing component 3, the sampling port self-closing component 3 comprises an outer fixed arc disc 31, an inner joint closing piece 32 and a flexible connecting piece 33, the outer fixed arc disc 31 is fixedly connected with the inner joint closing piece 32 through the flexible connecting piece 33, when the inner fit closing part 32 is extruded by external force, the flexible connecting sheet 33 maintains the connectivity and realizes the downward turning of the inner fit closing part 32, so that a crude oil sample leaks from the liquid inlet of the crude oil storage part 1; the leakage monitoring assembly 4 is fixedly connected with the sample leading-in assembly 2, the leakage monitoring assembly 4 comprises a conduction pipe 41, an oil adsorption ring 42, a plurality of guide seats 43 and a liquid level overflow monitoring mark 44 bonded on the inner side of the guide seats 43, the oil adsorption ring 42 is sleeved on the outer side of the conduction pipe 41, the guide seats 43 are fixedly connected to the outer wall of the conduction pipe 41 in an annular mode, the oil adsorption ring 42 is used for adsorbing a crude oil sample when the crude oil sample overflows from the outer side of the end sealing plug 5, and the liquid level overflow monitoring mark 44 on the inner side of the guide seats 43 is used for sucking the crude oil sample when the adsorption amount of the oil adsorption ring 42 is excessive and achieving a prompt effect after color change.

In addition, in this embodiment, the sample introducing assembly 2 includes a flared seat 21 and a surrounding sealing disk 22, the inner side of the flared seat 21 is rotatably connected with a rotating shaft 23, the surrounding sealing disk 22 is fixedly connected with the rotating shaft 23, and the surrounding sealing disk 22 is located above the sampling port self-sealing assembly 3; encircle the bottom fixed mounting rubber seal of closing disc 22, input fluid sample completion back in crude oil storage 1, operating personnel rotates and encircles closing disc 22 and inlay it in the open end position of flaring seat 21, makes to encircle closing disc 22 and is located the sample connection from closing component 3 directly over, realizes the leak protection closure to flaring seat 21.

The inclined support rod 311 is fixed below the outer fixed arc disc 31, the connecting support rod 321 is obliquely supported between the inner joint sealing part 32 and the inclined support rod 311, two ends of the connecting support rod 321 are respectively hinged with the inner joint sealing part 32 and the inclined support rod 311, and an elastic part is further connected between the inclined support rod 311 and the connecting support rod 321. The bottoms of the inner joint sealing pieces 32 and the outer fixed arc discs 31 are supported by inclined support rods 311 and connecting support rods 321, the outer fixed arc discs 31 in the two groups of sampling port self-sealing assemblies 3 are respectively fixed in the inner wall of the flaring seat 21 and the inner wall of the end sealing plug 5, so as to play a role in supporting the inner joint sealing pieces 32, when a sampling oil conveying pipe is inserted through the inner side of the flaring seat 21, the inner joint sealing pieces 32 in the two groups of sampling port self-sealing assemblies 3 are downwards folded through the elastic extension of the flexible connecting pieces 33 due to the extrusion effect, so that when an opening gap during sampling oil conveying is reduced, when the sampling oil conveying pipe is drawn out from the inner side of the flaring seat 21, the inner joint sealing pieces 32 are enabled to be in a horizontal state again through the resetting effect of the elastic pieces, and after the inner joint sealing pieces 32 in the two groups of sampling port self-sealing assemblies 3 are mutually combined, and auxiliary plugging of the flaring seat 21 and the end closing plug 5 is realized.

Wherein, the guide seat 43 is provided with a guide opening 431, and the bottom end of the liquid level overflow monitoring mark 44 penetrates through the guide opening 431 and is contacted with the oil liquid adsorption ring 42; the liquid level overflow monitoring mark 44 is arranged on the inner side of the guide seat 43, when the oil sample leaks from the gap between the end closing plug 5 and the crude oil storage part 1 due to unstable factors in a transportation state, firstly, the oil absorption ring 42 is arranged to absorb part of the oil to avoid leakage and diffusion, meanwhile, after the oil absorption ring 42 is immersed in the oil, the liquid level overflow monitoring mark 44 can directly contact the oil on the inner side of the oil absorption ring 42, so that the liquid level overflow monitoring mark 44 is changed in color due to immersion of the oil, and after the liquid level overflow monitoring mark arrives at a detection place, a detector can pull out the flaring seat 21 from the position above the flaring end 11 to observe the liquid level overflow monitoring mark 44. The principle is that the liquid level overflow monitoring mark 44 changes in dark blue or light blue through the contact of hydrocarbons in the crude oil, the oil absorption of the liquid level overflow monitoring mark 44 is shown by the blue shade and the blue area, and if the crude oil does not leak, the test paper cannot become wet and does not change color.

The top of the crude oil storage part 1 is integrally formed with a flared end 11, and the outer side of the end closing plug 5 is fixedly connected with a gradual change curve sealing ring 51 which is used for keeping the sealing performance after being plugged on the inner side of the flared end 11; the flaring end 11 plays a role in prolonging the height of the opening of the crude oil storage part 1, and simultaneously gives an insertion clamping space for the end closing plug 5, so that in a storage state, the sample leading-in component 2 is inserted into the inner side of the flaring end 11 through the gradual change curve sealing ring 51 arranged at the bottom of the end closing plug 5, and clamping sealing between the flaring end 11 and the flaring end is realized.

When a crude oil sample is input in a sampling area, firstly, an oil pipeline penetrates through the inner side of the sample introduction assembly 2 until the oil pipeline enters the inner side of the crude oil storage part 1, at the moment, the inner joint closure part 32 positioned on the inner sides of the end closure plug 5 and the flaring seat 21 is subjected to downward contact extrusion force of the oil pipeline, the inner joint closure part 32 is turned downwards under the hinge transmission action of the connecting support rod 321, the distance between the two inner joint closure parts 32 is increased, a channel space is provided for the oil pipeline to enter, the flexible connecting piece 33 and the outer fixed arc disc 31 can reduce an opening gap when the sample is put into the crude oil storage part 1, after the oil pipeline is completely put into the crude oil storage part 1, the oil pipeline is pulled away from the inner side of the crude oil storage part 1, the inner joint closure part 32 is turned over and reset to a horizontal state under the elastic restoring force of the elastic piece, and the flaring end 11 and the flaring seat 21 are sealed through the barriers of the two inner joint closure parts 32, then the sampling pipe is arranged at the upper end of the flaring seat 21 after rotating around the sealing disc 22 to realize the sealing after sampling, when the crude oil sample spills from the gap between the end closing plug 5 and the flared end 11 due to the shaking of the crude oil storage part 1 in the transportation process of the crude oil sample, the crude oil at the spilled part is absorbed by the oil absorption ring 42, and is prevented from directly leaking to the surface wall of the crude oil storage part 1, meanwhile, the liquid level overflow monitoring mark 44 on the inner side of the guide seat 43 is jointed with the oil liquid adsorption ring 42, that is, after the oil absorption ring 42 absorbs the exuded oil, the liquid level overflow monitoring mark 44 will change color due to the conduction after the oil absorption ring 42 absorbs the oil, and give a subsequent judgment mark before sample detection, so that an operator can know whether the oil in the storage device leaks due to insufficient sealing property in long-term transportation, and the detection sample is guaranteed to always maintain the required detection standard.

When the crude oil storage piece reaches a transportation point, a detection person cancels the detection of the stock solution as a sample by observing whether the liquid level overflow monitoring mark 44 at the position of the flared end 11 changes color after adsorbing oil, if the color changes, namely the stock solution is poor in sealing performance in the transportation process, and if the color change phenomenon of the liquid level overflow monitoring mark 44 does not occur, namely the sealing performance of the stock solution stored in the crude oil storage piece 1 is good, the operator can pour the crude oil sample in the crude oil storage piece 1 to the outside at one time through the flared end 11 by pulling the end closing plug 5 from the position of the flared end 11, further the plugging of the end closing plug 5 and the sample leading-in assembly 2 to the open end of the flared end 11 is relieved, namely the operator can pour the crude oil sample in the crude oil storage piece 1 to the outside through the flared end 11, the liquid level overflow monitoring mark 44 is arranged on the inner side of the guide seat 43 in a sticking and replacing manner of directly tearing off and re-sticking after the oil is changed color, thereby realizing repeated use.

The second concrete embodiment:

the specific embodiment II discloses a use method of a crude oil sample storage device, which comprises the following steps:

(a) when a crude oil sample is input, firstly, an oil pipeline penetrates through the inner side of the sample introduction assembly 2 until the oil pipeline enters the inner side of the crude oil storage part 1, at the moment, the inner joint sealing piece 32 positioned on the inner sides of the end sealing plug 5 and the flaring seat 21 is pressed by the oil pipeline in a contact manner, namely, the inner joint sealing piece 32 turns downwards due to the hinged transmission of the connecting support rod 321, and a channel for the oil pipeline to enter the crude oil storage part 1 is formed;

(b) after the oil sample is input, the oil pipeline is extracted, the inner joint sealing piece 32 is turned over and reset to be in a horizontal state under the action of elastic restoring force of the elastic piece, and automatic sealing of the opening ends of the flaring end 11 and the flaring seat 21 is realized;

(c) then, the surrounding sealing disk 22 is rotated to the upper end of the flaring seat 21, so that the opening end of the flaring seat 21 is sealed;

(d) the crude oil sample storage part 1 shakes during transportation of the crude oil sample, when the crude oil sample overflows from a gap between the end closing plug 5 and the flared end 11, crude oil at the overflowing part is adsorbed by the oil adsorption ring 42, meanwhile, because the liquid level overflow monitoring mark 44 on the inner side of the guide seat 43 is attached to the oil adsorption ring 42, the liquid level overflow monitoring mark 44 can change color under the influence of conduction immersion after the oil adsorption ring 42 adsorbs oil, before sample detection, the liquid level overflow monitoring mark is used as a judgment mark for judging whether the crude oil sample leaks from the crude oil storage part 1, so that an operator can know whether the oil in the storage device leaks due to insufficient sealing during long-term transportation, and the detection sample is guaranteed to always keep the required detection standard.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A crude oil sample storage device comprises a crude oil storage part (1), a sample introduction component (2) and an end sealing plug (5), and is characterized in that the inner sides of the sample introduction component (2) and the end sealing plug (5) are respectively provided with a sampling port self-sealing component (3), and the bottom of the sample introduction component (2) is provided with a discharge monitoring component (4) and the end sealing plug (5);

the sampling port self-sealing assembly (3) comprises an outer fixed arc disc (31), an inner joint sealing piece (32) and a flexible connecting piece (33), wherein the outer fixed arc disc (31) is fixedly connected with the inner joint sealing piece (32) through the flexible connecting piece (33);

the leakage monitoring assembly (4) is fixedly connected with the sample leading-in assembly (2), the leakage monitoring assembly (4) comprises a conduction pipe (41), an oil adsorption ring (42), a plurality of guide seats (43) and a liquid level overflow monitoring mark (44) bonded on the inner side of the guide seats (43), the oil adsorption ring (42) is sleeved on the outer side of the conduction pipe (41), and the guide seats (43) are fixedly connected to the outer wall of the conduction pipe (41) in an annular shape;

the sample introduction assembly (2) comprises a flared seat (21) and a surrounding closing disc (22), the surrounding closing disc (22) is mounted on the flared seat (21) through a rotating shaft (23), and the surrounding closing disc (22) is located above the sampling port self-closing assembly (3);

outer fixed arc dish (31) with the bottom of interior laminating closure piece (32) is equipped with respectively and leans on bracing piece (311) and connecting rod (321), it fixes to lean on bracing piece (311) outer fixed arc dish (31) below, connecting rod (321) inclined support is in interior laminating closure piece (32) with between the tendency bracing piece (311), and the both ends of connecting rod (321) respectively with interior laminating closure piece (32) with tendency bracing piece (311) are articulated, incline bracing piece (311) with still connect an elastic component between connecting rod (321).

2. The crude oil sample storage device as defined in claim 1, wherein: the guide seat (43) is provided with a guide opening (431), and the bottom end of the liquid level overflow monitoring mark (44) penetrates through the guide opening (431) and is in contact with the oil liquid adsorption ring (42).

3. A crude oil sample storage unit as defined in claim 2, wherein: the top of the crude oil storage part (1) is integrally formed with a flared end (11), and the outer side of the end closing plug (5) is fixedly connected with a gradual change curve sealing ring (51) which is used for keeping the sealing performance after being plugged on the inner side of the flared end (11).

4. The method of using a crude oil sample storage device as claimed in claim 3, comprising:

(a) when a crude oil sample is input, firstly, an oil pipeline penetrates through the inner side of the sample introduction assembly (2) until the oil pipeline enters the inner side of the crude oil storage part (1), and at the moment, an inner fit closing part (32) positioned on the inner sides of the end closing plug (5) and the flaring seat (21) is pressed by the oil pipeline in a contact manner and turns downwards to form a channel for the oil pipeline to enter the crude oil storage part (1);

(b) after the oil sample is input, the oil pipeline is extracted, the inner joint sealing piece (32) is turned over and reset to be in a horizontal state under the action of elastic restoring force of the elastic piece, and the automatic sealing of the opening ends of the flaring end (11) and the flaring seat (21) is realized;

(c) then the surrounding sealing disc (22) is rotated to the upper end of the flaring seat (21) to realize the sealing of the crude oil storage part (1);

(d) the crude oil sample storage device is characterized in that the crude oil storage part (1) shakes in the transportation process of the crude oil sample, when the crude oil sample overflows from a gap between the end closing plug (5) and the flared end (11), crude oil at the overflowing part is adsorbed by the oil adsorption ring (42), meanwhile, the liquid level overflow monitoring mark (44) on the inner side of the guide seat (43) is attached to the oil adsorption ring (42), the liquid level overflow monitoring mark (44) can change color under the influence of conduction and immersion after the oil adsorption ring (42) adsorbs oil, and before sample detection, the liquid level overflow monitoring mark is used as a judgment mark for judging whether the crude oil sample leaks from the crude oil storage part (1), so that an operator can know whether the oil in the storage device leaks due to insufficient sealing performance in the long-term transportation process, and the detection sample is guaranteed to always keep the required detection standard.