CN214667960U - Sampling device for working condition diagnosis of oil well in oil field - Google Patents
Sampling device for working condition diagnosis of oil well in oil field Download PDFInfo
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- CN214667960U CN214667960U CN202121031345.5U CN202121031345U CN214667960U CN 214667960 U CN214667960 U CN 214667960U CN 202121031345 U CN202121031345 U CN 202121031345U CN 214667960 U CN214667960 U CN 214667960U
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Abstract
The utility model discloses a sampling device for oil field oil well working condition diagnosis, which relates to the technical field of oil gas development equipment, wherein four fixed rods are respectively and fixedly arranged on four corners at the bottom of a supporting plate, an oil pump and a buffer box are fixedly arranged on the supporting plate, the buffer box is close to the rear side of the supporting plate, the inlet of the oil pump is communicated with an oil inlet hose, a sealing cover is detachably arranged on the opening at the top of the buffer box, a connecting pipe is arranged on the sealing cover, one end of the conveying pipe is communicated with the outlet of the oil pump, the other end of the conveying pipe is communicated with the connecting pipe, and a sealing ring is arranged at the joint of the connecting pipe and the conveying pipe; a notch is formed in the rear side of the supporting plate, a discharge pipe with a vertically downward tail opening is arranged at the bottom of the rear side of the buffer box, the discharge pipe is positioned in the notch, and a valve is arranged on the discharge pipe; the bottom of the rear side of the supporting plate is fixedly provided with a supporting frame, the top and the rear of the supporting frame are provided with openings, and the openings at the top of the supporting frame are communicated with the notches; the buffer box in the device contains various buffer structures, so that the flow velocity of petroleum can be effectively reduced, and the stability of the sampling container is maintained.
Description
Technical Field
The utility model relates to an oil gas development equipment technical field, concretely relates to diagnostic sampling device that uses of oil field oil well operating mode.
Background
Need diagnose the oil well operating mode when the oil exploitation to in the oil well, need take a sample to the oil in the oil well, current sampling device is when taking a sample to the oil, and the speed of oil is very fast when the discharge port release is followed to the oil, and the very fast oil of velocity of flow strikes the container, leads to the container to empty easily, leads to the oil to spill.
Chinese patent CN208966335U provides an oil well sampling blowout preventer, which comprises an elbow, wherein the elbow is a reducing elbow, the small end of the elbow is used for connecting a sampling pipeline, the large end of the elbow is connected with a sampler inner pipe, and the pipe diameter of the sampler inner pipe is larger than that of the sampling pipeline; the liquid discharge port of the inner tube of the sampler is provided with an oil liquid seal plate, and the side wall of the inner tube of the sampler, which is adjacent to the liquid discharge port, is provided with an oil outlet; the oil outlet holes are arranged in sequence along the circumferential direction of the inner tube of the sampler; the sampling device is characterized by further comprising a sampler outer tube, wherein the sampler outer tube is sleeved on the sampler inner tube, a liquid discharge port of the sampler inner tube is positioned in the sampler outer tube, the inner wall of the sampler outer tube is fixedly connected with the outer wall of the sampler inner tube, and a cavity is formed between the sampler outer tube and the sampler inner tube; the patent improves a sampling port, and mainly prevents oil from splashing; chinese patent CN207131389U provides a separate oil well sampling device, which comprises a sample container and an oil-gas separation joint, wherein the oil-gas separation joint is provided with a liquid inlet pipe and an exhaust pipe, the sample container is composed of a sampling bottle with an opening on the upper part, the sampling bottle and the oil-gas separation joint are detachably connected, and the joint of the sampling bottle and the oil-gas separation joint is provided with a sealing structure; oil-gas separation has been realized to this patent, but mainly solves the gathering of natural gas in the well head room, problem that the safety risk is high.
Therefore, it is necessary to develop an anti-impact sampling device for diagnosing the working conditions of the oil well in the oil field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sampling device is used in diagnosis of oil field oil well operating mode to the defect that prior art exists exactly.
The technical scheme of the utility model is that: a sampling device for oil well working condition diagnosis in an oil field comprises a supporting plate, fixing rods, a power supply box, an oil pump, an oil inlet hose, a conveying pipe and a buffer box, wherein the four fixing rods are respectively and fixedly arranged at four corners of the bottom of the supporting plate, and universal wheels are arranged at the lower ends of the fixing rods; the oil pump and the buffer box are fixedly arranged on the supporting plate, the buffer box is close to the rear side of the supporting plate, an inlet of the oil pump is communicated with the oil inlet hose, a sealing cover is detachably arranged on an opening in the top of the buffer box, a connecting pipe is arranged on the sealing cover, one end of the conveying pipe is communicated with an outlet of the oil pump, the other end of the conveying pipe is communicated with the connecting pipe, and a sealing ring is arranged at the joint of the connecting pipe and the conveying pipe;
a notch is formed in the rear side of the supporting plate, a discharge pipe with a vertically downward tail opening is arranged at the bottom of the rear side of the buffer box, the discharge pipe is located in the notch, and a valve is arranged on the discharge pipe; the supporting plate is characterized in that a supporting frame is fixedly arranged at the bottom of the rear side of the supporting plate, the top and the rear of the supporting frame are open, and the top opening of the supporting frame is communicated with the notch.
The power box is fixedly arranged at the bottom of the supporting plate and is electrically connected with the oil pump, and a switch is arranged on the power box.
Preferably, the delivery pipe is provided with a second valve.
Preferably, the buffer box is internally provided with buffer plates which are arranged in a vertically staggered manner.
Preferably, the buffer tank is a cylinder body with a screw sheet arranged inside.
Preferably, the buffer box and the support frame are arranged in two groups and are arranged on the rear side of the support plate side by side; the conveying pipe is respectively communicated with the two buffer tanks through a tee joint.
Preferably, the support plate is sprayed with an anticorrosive layer.
Preferably, the conveying pipe is a stainless steel pipe.
Preferably, still including depositing the case, deposit case fixed mounting in backup pad bottom, and deposit and place a plurality of sample container in the case.
Compared with the prior art, the utility model, have following advantage:
(1) the device starts the oil pump through the power supply starting assembly, after the oil pump is started, oil enters the oil pump from the oil inlet hose, is released from the conveying pipe and flows into the buffer tank through the connecting pipe, and the buffer tank buffers the pumped oil to reduce the speed of the oil; opening the valve, discharging the oil in the buffer tank from the discharge pipe, and flowing into a container placed on the support frame; the flow rate of the petroleum is small, and the sampling container cannot be flushed down;
(2) the buffer box in the device comprises various buffer structures, so that the flow velocity of petroleum can be effectively reduced, and the stability of a sampling container is maintained;
(3) the device can adopt various operation modes such as segmented interception, flow division buffering and the like, can effectively reduce the flow rate of petroleum and is favorable for oil extraction and sampling.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of a surge tank in the third embodiment;
FIG. 3 is a schematic sectional view of a surge tank in accordance with a fourth embodiment;
fig. 4 is a schematic structural diagram of the present invention in the fifth embodiment.
In the figure: 1. the device comprises a supporting plate, 101, a notch, 2, a fixing rod, 3, a universal wheel, 4, an oil pump, 5, an oil inlet hose, 6, a conveying pipe, 7, a second valve, 8, a buffer box, 801, a buffer plate, 802, a screw sheet, 9, a sealing cover, 10, a connecting pipe, 11, a discharging pipe, 12, a valve, 13, a supporting frame, 14, a power supply box, 15, a switch, 16, a storage box, 17 and a sampling container.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example one
Referring to fig. 1, the sampling device for oil well working condition diagnosis in an oil field comprises a supporting plate 1, fixing rods 2, a power supply box 14, an oil pump 4, an oil inlet hose 5, a conveying pipe 6 and a buffer box 8, wherein the four fixing rods 2 are respectively and fixedly arranged at four corners of the bottom of the supporting plate 1, and universal wheels 3 are respectively arranged at the lower ends of the fixing rods 2; the oil pump 4 and the buffer box 8 are fixedly arranged on the supporting plate 1, the buffer box 8 is close to the rear side of the supporting plate 1, an inlet of the oil pump 4 is communicated with the oil inlet hose 5, a sealing cover 9 is detachably arranged on an opening at the top of the buffer box 8, a connecting pipe 10 is arranged on the sealing cover 9, one end of the conveying pipe 6 is communicated with an outlet of the oil pump 4, the other end of the conveying pipe 6 is communicated with the connecting pipe 10, and a sealing ring is arranged at the joint of the connecting pipe 10 and the conveying pipe 6; the duct 6 in this embodiment is a stainless steel tube.
A notch 101 is formed in the rear side of the supporting plate 1, a discharge pipe 11 with a vertically downward tail opening is formed in the bottom of the rear side of the buffer tank 8, the discharge pipe 11 is located in the notch 101, and a valve 12 is arranged on the discharge pipe 11; the supporting frame 13 is fixedly installed at the bottom of the rear side of the supporting plate 1, the top and the rear of the supporting frame 13 are opened, and the top opening of the supporting frame 13 is communicated with the notch 101.
The power box 14 is fixedly arranged at the bottom of the support plate 1 and is electrically connected with the oil pump 4, and the power box 14 is provided with a switch 15.
In more detail, in order to prolong the service life of the device, an anticorrosive coating is sprayed on the support plate 1.
When the device is used, firstly, the switch 15 is turned on to start the oil pump 4, after the oil pump 4 is started, petroleum enters the oil pump 4 from the oil inlet hose 5, then flows into the buffer tank 8 through the connecting pipe 10 after being conveyed by the conveying pipe 6, and the buffer tank 8 buffers the pumped petroleum to reduce the flow speed of the petroleum; finally, the valve 12 is opened, and the oil in the buffer tank 8 flows into a sampling container 17 placed on the support frame 13 from the discharge pipe 11; after the sampling is completed, the cap 9 and the buffer tank 8 are separated, and the inside of the buffer tank 8 is cleaned.
According to the device, the oil pump 4 is started through the power supply starting assembly, after the oil pump 4 is started, oil enters the oil pump 4 from the oil inlet hose 5, is released from the conveying pipe 6 and flows into the buffer tank 8 through the connecting pipe 10, and the buffer tank 8 buffers the pumped oil, so that the speed of the oil is reduced; opening the valve 12, the oil in the buffer tank 8 is discharged from the discharge pipe 11 and flows into the container placed on the support frame 13; the oil flow rate is low and does not flush down the sampling vessel 17.
Example two
Referring to fig. 1, the sampling device for oil well working condition diagnosis in an oil field comprises a supporting plate 1, fixing rods 2, a power supply box 14, an oil pump 4, an oil inlet hose 5, a conveying pipe 6 and a buffer box 8, wherein the four fixing rods 2 are respectively and fixedly arranged at four corners of the bottom of the supporting plate 1, and universal wheels 3 are respectively arranged at the lower ends of the fixing rods 2; the oil pump 4 and the buffer box 8 are fixedly arranged on the supporting plate 1, the buffer box 8 is close to the rear side of the supporting plate 1, an inlet of the oil pump 4 is communicated with the oil inlet hose 5, a sealing cover 9 is detachably arranged on an opening at the top of the buffer box 8, a connecting pipe 10 is arranged on the sealing cover 9, one end of the conveying pipe 6 is communicated with an outlet of the oil pump 4, the other end of the conveying pipe 6 is communicated with the connecting pipe 10, and a sealing ring is arranged at the joint of the connecting pipe 10 and the conveying pipe 6; the duct 6 in this embodiment is a stainless steel tube.
A notch 101 is formed in the rear side of the supporting plate 1, a discharge pipe 11 with a vertically downward tail opening is formed in the bottom of the rear side of the buffer tank 8, the discharge pipe 11 is located in the notch 101, and a valve 12 is arranged on the discharge pipe 11; the supporting frame 13 is fixedly installed at the bottom of the rear side of the supporting plate 1, the top and the rear of the supporting frame 13 are opened, and the top opening of the supporting frame 13 is communicated with the notch 101.
The power box 14 is fixedly arranged at the bottom of the support plate 1 and is electrically connected with the oil pump 4, and the power box 14 is provided with a switch 15.
In order to prolong the service life of the device, an anticorrosive layer is sprayed on the supporting plate 1.
The difference between the present embodiment and the first embodiment is: the delivery pipe 6 in this embodiment is provided with a second valve 7.
When the oil pump is used, firstly, the switch 15 is turned on to start the oil pump 4, after the oil pump 4 is started, oil enters the oil pump 4 from the oil inlet hose 5, is conveyed by the conveying pipe 6, and flows into the buffer tank 8 through the connecting pipe 10; after the oil pump 4 is started to work for a period of time, the buffer tank 8 is gradually filled with the pumped oil; at this point the second valve 7 on the delivery pipe 6 is closed and the valve 12 on the discharge pipe 11 is opened and the oil in the buffer tank 8 flows through the discharge pipe 11 at a slower rate into the sampling vessel 17 placed on the support 13.
The second valve 7 added in this embodiment blocks the communication between the buffer tank 8 and the oil pump 4 when operating, thereby blocking the pressure of the oil in the buffer tank 8, and this setting makes the flow rate of the oil slower when discharging.
EXAMPLE III
Referring to fig. 1, the sampling device for oil well working condition diagnosis in an oil field comprises a supporting plate 1, fixing rods 2, a power supply box 14, an oil pump 4, an oil inlet hose 5, a conveying pipe 6 and a buffer box 8, wherein the four fixing rods 2 are respectively and fixedly arranged at four corners of the bottom of the supporting plate 1, and universal wheels 3 are respectively arranged at the lower ends of the fixing rods 2; the oil pump 4 and the buffer box 8 are fixedly arranged on the supporting plate 1, the buffer box 8 is close to the rear side of the supporting plate 1, an inlet of the oil pump 4 is communicated with the oil inlet hose 5, a sealing cover 9 is detachably arranged on an opening at the top of the buffer box 8, a connecting pipe 10 is arranged on the sealing cover 9, one end of the conveying pipe 6 is communicated with an outlet of the oil pump 4, the other end of the conveying pipe 6 is communicated with the connecting pipe 10, and a sealing ring is arranged at the joint of the connecting pipe 10 and the conveying pipe 6; the duct 6 in this embodiment is a stainless steel tube.
A notch 101 is formed in the rear side of the supporting plate 1, a discharge pipe 11 with a vertically downward tail opening is formed in the bottom of the rear side of the buffer tank 8, the discharge pipe 11 is located in the notch 101, and a valve 12 is arranged on the discharge pipe 11; the supporting frame 13 is fixedly installed at the bottom of the rear side of the supporting plate 1, the top and the rear of the supporting frame 13 are opened, and the top opening of the supporting frame 13 is communicated with the notch 101.
The power box 14 is fixedly arranged at the bottom of the support plate 1 and is electrically connected with the oil pump 4, and the power box 14 is provided with a switch 15.
In order to prolong the service life of the device, an anticorrosive layer is sprayed on the supporting plate 1.
This embodiment refines the inner structure of baffle-box 8, specifically is: referring to fig. 2, the buffer box 8 of the present embodiment is provided with buffer plates 801 arranged in a staggered manner.
When the oil pumping device is used, after oil enters the buffer tank 8 from the connecting pipe 10 through the conveying pipe 6, the oil sequentially flows through the buffer plates 801 in the tank from top to bottom, the flow direction of the oil is changed by the aid of the buffer plates 801 arranged in a staggered mode for many times, the oil is further effectively buffered, and the flow speed of the pumped oil is further reduced on the basis of the first embodiment.
The buffer box 8 in the device contains various buffer structures, so that the flow velocity of petroleum can be effectively reduced, and the stability of the sampling container 17 is maintained.
Example four
Referring to fig. 1, the sampling device for oil well working condition diagnosis in an oil field comprises a supporting plate 1, fixing rods 2, a power supply box 14, an oil pump 4, an oil inlet hose 5, a conveying pipe 6 and a buffer box 8, wherein the four fixing rods 2 are respectively and fixedly arranged at four corners of the bottom of the supporting plate 1, and universal wheels 3 are respectively arranged at the lower ends of the fixing rods 2; the oil pump 4 and the buffer box 8 are fixedly arranged on the supporting plate 1, the buffer box 8 is close to the rear side of the supporting plate 1, an inlet of the oil pump 4 is communicated with the oil inlet hose 5, a sealing cover 9 is detachably arranged on an opening at the top of the buffer box 8, a connecting pipe 10 is arranged on the sealing cover 9, one end of the conveying pipe 6 is communicated with an outlet of the oil pump 4, the other end of the conveying pipe 6 is communicated with the connecting pipe 10, and a sealing ring is arranged at the joint of the connecting pipe 10 and the conveying pipe 6; the duct 6 in this embodiment is a stainless steel tube.
A notch 101 is formed in the rear side of the supporting plate 1, a discharge pipe 11 with a vertically downward tail opening is formed in the bottom of the rear side of the buffer tank 8, the discharge pipe 11 is located in the notch 101, and a valve 12 is arranged on the discharge pipe 11; the supporting frame 13 is fixedly installed at the bottom of the rear side of the supporting plate 1, the top and the rear of the supporting frame 13 are opened, and the top opening of the supporting frame 13 is communicated with the notch 101.
The power box 14 is fixedly arranged at the bottom of the support plate 1 and is electrically connected with the oil pump 4, and the power box 14 is provided with a switch 15.
This embodiment refines the inner structure of baffle-box 8, specifically is: referring to fig. 3, the buffer tank 8 in this embodiment is a cylindrical body having a screw piece 802 provided therein.
When in use, after the oil enters the buffer tank 8 from the connecting pipe 10 through the conveying pipe 6, the oil spirally flows downwards along the spiral piece 802 in the tank from top to bottom, the flow direction of the oil is continuously changed by the spiral piece 802-shaped buffer plate 801, the oil is effectively buffered, and the flow speed of the extracted oil is further reduced on the basis of the first embodiment.
The buffer box 8 in the device contains various buffer structures, so that the flow velocity of petroleum can be effectively reduced, and the stability of the sampling container 17 is maintained.
EXAMPLE five
Referring to fig. 4, the sampling device for oil well working condition diagnosis in the oil field comprises a supporting plate 1, fixing rods 2, a power supply box 14, an oil pump 4, an oil inlet hose 5, a conveying pipe 6 and a buffer box 8, wherein the four fixing rods 2 are respectively and fixedly arranged at four corners of the bottom of the supporting plate 1, and universal wheels 3 are respectively arranged at the lower ends of the fixing rods 2; the oil pump 4 and the buffer box 8 are fixedly arranged on the supporting plate 1, the buffer box 8 is close to the rear side of the supporting plate 1, an inlet of the oil pump 4 is communicated with the oil inlet hose 5, a sealing cover 9 is detachably arranged on an opening at the top of the buffer box 8, a connecting pipe 10 is arranged on the sealing cover 9, one end of the conveying pipe 6 is communicated with an outlet of the oil pump 4, the other end of the conveying pipe 6 is communicated with the connecting pipe 10, and a sealing ring is arranged at the joint of the connecting pipe 10 and the conveying pipe 6; the duct 6 in this embodiment is a stainless steel tube.
A notch 101 is formed in the rear side of the supporting plate 1, a discharge pipe 11 with a vertically downward tail opening is formed in the bottom of the rear side of the buffer tank 8, the discharge pipe 11 is located in the notch 101, and a valve 12 is arranged on the discharge pipe 11; the supporting frame 13 is fixedly installed at the bottom of the rear side of the supporting plate 1, the top and the rear of the supporting frame 13 are opened, and the top opening of the supporting frame 13 is communicated with the notch 101.
The power box 14 is fixedly arranged at the bottom of the support plate 1 and is electrically connected with the oil pump 4, and the power box 14 is provided with a switch 15.
In order to prolong the service life of the device, an anticorrosive layer is sprayed on the supporting plate 1.
The difference between the present embodiment and the first embodiment is: the buffer box 8 and the support frame 13 in the embodiment are provided with two groups, and the two groups are arranged at the rear side of the support plate 1 side by side; the conveying pipe 6 is respectively communicated with the two buffer tanks 8 through a tee joint. In addition, the present embodiment further includes a storage box 16, the storage box 16 is fixedly installed at the bottom of the supporting plate 1, and a plurality of sampling containers 17 are placed in the storage box 16.
In use, the storage box 16 is opened, and the two sampling containers 17 are taken out and placed on the two support frames 13; the oil pump 4 is started, the oil is distributed into the two buffer tanks 8 through the tee joint on the delivery pipe 6, and the two buffer tanks 8 buffer the oil at the same time, so that the flowing speed of the oil is further reduced; opening valves 12 on the two discharge pipes 11, allowing the petroleum in the two buffer tanks 8 to flow into corresponding sampling containers 17 respectively, and taking down the two sampling containers 17 from the support frame 13 and putting the two sampling containers 17 into the storage tank 16 for storage after the sampling containers 17 are filled with the petroleum; compared with the first embodiment, the flow velocity of the petroleum is further reduced by adopting a flow dividing mode, and two sampling containers 17 can be simultaneously filled; the embodiment improves the sampling speed on the basis of ensuring the stability of the sampling container 17.
The device can adopt various operation modes such as segmented interception, flow division buffering and the like, can effectively reduce the flow rate of petroleum and is favorable for oil extraction and sampling.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides an oil field oil well sampling device for operating mode diagnosis which characterized in that: the four fixing rods are respectively and fixedly arranged on four corners of the bottom of the supporting plate, and universal wheels are arranged at the lower ends of the fixing rods; the oil pump and the buffer box are fixedly arranged on the supporting plate, the buffer box is close to the rear side of the supporting plate, an inlet of the oil pump is communicated with the oil inlet hose, a sealing cover is detachably arranged on an opening in the top of the buffer box, a connecting pipe is arranged on the sealing cover, one end of the conveying pipe is communicated with an outlet of the oil pump, the other end of the conveying pipe is communicated with the connecting pipe, and a sealing ring is arranged at the joint of the connecting pipe and the conveying pipe;
a notch is formed in the rear side of the supporting plate, a discharge pipe with a vertically downward tail opening is arranged at the bottom of the rear side of the buffer box, the discharge pipe is located in the notch, and a valve is arranged on the discharge pipe; the bottom of the rear side of the supporting plate is fixedly provided with a supporting frame, the top and the rear of the supporting frame are opened, and the opening of the top of the supporting frame is communicated with the notch;
the power box is fixedly arranged at the bottom of the supporting plate and is electrically connected with the oil pump, and a switch is arranged on the power box.
2. The sampling device for diagnosing the working condition of the oil well in the oil field according to claim 1, characterized in that: and a second valve is arranged on the conveying pipe.
3. The sampling device for diagnosing the working condition of the oil well in the oil field according to claim 1, characterized in that: buffer plates which are arranged in a vertically staggered mode are arranged in the buffer box.
4. The sampling device for diagnosing the working condition of the oil well in the oil field according to claim 1, characterized in that: the buffer box is a cylinder body with a spiral sheet arranged inside.
5. The sampling device for diagnosing the working condition of the oil well in the oil field according to the claim 1 or 2, characterized in that: the buffer box and the support frame are arranged in two groups and are arranged on the rear side of the support plate side by side; the conveying pipe is respectively communicated with the two buffer tanks through a tee joint.
6. The sampling device for diagnosing the working condition of the oil well in the oil field according to claim 1, characterized in that: and an anti-corrosion layer is sprayed on the supporting plate.
7. The sampling device for diagnosing the working condition of the oil well in the oil field according to claim 1, characterized in that: the conveying pipe is a stainless steel pipe.
8. The sampling device for diagnosing the working condition of the oil well in the oil field according to claim 1, characterized in that: still including depositing the case, deposit case fixed mounting in the backup pad bottom, and deposit and place a plurality of sample container in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031345.5U CN214667960U (en) | 2021-05-14 | 2021-05-14 | Sampling device for working condition diagnosis of oil well in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031345.5U CN214667960U (en) | 2021-05-14 | 2021-05-14 | Sampling device for working condition diagnosis of oil well in oil field |
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| Publication Number | Publication Date |
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| CN214667960U true CN214667960U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121031345.5U Active CN214667960U (en) | 2021-05-14 | 2021-05-14 | Sampling device for working condition diagnosis of oil well in oil field |
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| Country | Link |
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| CN (1) | CN214667960U (en) |
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2021
- 2021-05-14 CN CN202121031345.5U patent/CN214667960U/en active Active
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