CN210716975U - Unattended intelligent oil-gas mixed transportation system - Google Patents
Unattended intelligent oil-gas mixed transportation system Download PDFInfo
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- CN210716975U CN210716975U CN201921409528.9U CN201921409528U CN210716975U CN 210716975 U CN210716975 U CN 210716975U CN 201921409528 U CN201921409528 U CN 201921409528U CN 210716975 U CN210716975 U CN 210716975U
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Abstract
The utility model discloses an unmanned on duty intelligence oil gas defeated system in mixture, including charge-in pipeline, the last wax control descaler that is provided with of charge-in pipeline, charge-in pipeline's end communicates to first oil gas transportation system, and first oil gas transportation system is provided with electromagnetic heater including transportation pipeline, first control valve, filter, oil gas defeated pump in mixture, check valve and second control valve on the ejection of compact pipeline. The utility model discloses to the website of low liquid production volume, high gas-oil ratio, under the prerequisite that satisfies the website and should have the function, single well oil production can be under the low temperature condition through oil gas defeated pump and direct defeated outward under electromagnetic heater's effect after collecing, the transfer station process flow has been simplified completely, the defeated system of collection has been optimized, abandon associated gas pipe network, the hot water circulation pipe network, stop buffer tank, the heating furnace, reduce website operation risk by a wide margin, this oil gas defeated system of mixing simultaneously can be by PLC automatic control, can accomplish the defeated mixture of oil gas automatically.
Description
Technical Field
The utility model relates to an oil gas thoughtlessly defeated field especially relates to an unmanned on duty intelligence oil gas thoughtlessly defeated system.
Background
In order to transport crude oil collected at a crude oil site, it must be pressurized and then transported to a refinery through a pressure pipeline. And because the crude oil contains a large amount of associated gas, water and sand, the transportation of the crude oil is not simple liquid transportation but liquid, gas and solid multiphase mixture transportation.
At present, most of domestic oil-gas mixed transportation systems adopt a transfer station or a booster station to collect single-well produced oil, then heat, separate and boost the oil, and finally transport the oil to a pressure pipeline, wherein the associated gas is compressed and then transported outwards through an associated gas pipe network, and oil mixed liquid is transported outwards through another flow through an oil transport pump.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an unmanned on duty intelligence oil gas thoughtlessly defeated system solves current oil gas thoughtlessly defeated system complicacy, handles the flow link many, need establish the problem of two defeated pipelines of oil and associated gas moreover.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to an unattended intelligent oil-gas mixed transportation system, which comprises a feeding pipeline, wherein a wax-proof descaler is arranged on the feeding pipeline, and the tail end of the feeding pipeline is communicated to a first oil-gas transportation system;
the first oil-gas transportation system comprises a transportation pipeline communicated with the tail end of the feeding pipeline, a first control valve, a filter, an oil-gas mixed transportation pump, a one-way valve and a second control valve are sequentially arranged on the transportation pipeline according to the oil-gas transportation direction, pressure transmitters and mechanical pressure gauges are arranged on the transportation pipeline on the inlet side and the outlet side of the oil-gas mixed transportation pump, and the tail end of the transportation pipeline is communicated to a discharge pipeline;
an electromagnetic heater is arranged on the discharge pipeline.
Further, the charge-in pipeline has set gradually feeding control valve and temperature transmitter according to the oil gas transportation direction, temperature transmitter is located the upper reaches of wax control descaler.
Furthermore, the first oil and gas transportation system further comprises two sewage pipes, the two sewage pipes are respectively communicated with the transportation pipeline on the inlet side and the outlet side of the oil and gas mixed transportation pump, and a sewage stop valve is arranged on the sewage pipes.
Further, the device also comprises a second oil and gas transportation system, the second oil and gas transportation system has the same structure as the first oil and gas transportation system, and the second oil and gas transportation system and the first oil and gas transportation system are connected in parallel between the feeding pipeline and the discharging pipeline.
Furthermore, a discharge control valve is arranged on the discharge pipeline and is positioned at the upstream of the electromagnetic heater.
Furthermore, a feeding emergency pressure relief pipeline is communicated with the feeding pipeline, the starting end of the feeding emergency pressure relief pipeline is positioned between the feeding control valve and the temperature transmitter, and a feeding emergency safety valve is arranged on the feeding emergency pressure relief pipeline in the oil gas pressure relief direction;
a discharging emergency pressure relief pipeline is communicated with the discharging pipeline, the starting end of the discharging emergency pressure relief pipeline is positioned at the downstream of the electromagnetic heater, and a discharging emergency safety valve is arranged on the discharging emergency pressure relief pipeline in the oil-gas pressure relief direction;
the tail end of the feeding emergency pressure relief pipeline and the tail end of the discharging emergency pressure relief pipeline are communicated to a main pressure relief pipeline, the main pressure relief pipeline is communicated with a feeding hole of the emergency storage tank, and an emergency pressure relief stop valve is arranged on the main pressure relief pipeline;
the discharge gate of emergent storage tank through emergent feed pipeline with the feed pipeline intercommunication, the end of emergent feed pipeline is located between temperature transmitter and the wax control descaler, be provided with emergent feed stop valve on the emergent feed pipeline.
Further, the last intercommunication of charge-in pipeline has the emergent pressure release pipeline of reserve feeding, the initiating terminal of the emergent pressure release pipeline of reserve feeding is located the low reaches of wax control descaler, the end of the emergent pressure release pipeline of reserve feeding with total pressure release pipeline intercommunication, be provided with the emergent pressure release motorised valve of reserve feeding on the emergent pressure release pipeline.
The circulating pipeline, the second oil and gas transportation system and the first oil and gas transportation system are connected in parallel between the feeding pipeline and the discharging pipeline, and a circulating electric valve is arranged on the circulating pipeline;
the filter is communicated with a standby filtering discharging pipe, the standby filtering discharging pipe is located below the conveying pipeline and communicated to the conveying pipeline, and a standby filtering discharging electric valve is arranged on the standby filtering discharging pipe.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses to low liquid production volume, the website of high gas-oil ratio, satisfy under the due functional prerequisite of website, single well oil production can be through oil gas defeated pump and direct outward transport under electromagnetic heater's effect under the low temperature condition after collecing, traditional oil gas mode has been changed completely, middle oil-gas separation workshop section has been got rid of, directly with oil, gas, water three-phase medium transports the terminal and separates, defeated system of collection has been optimized, abandon associated gas pipe network, the hot water circulation pipe network, the buffer tank that stops, the heating furnace, reduce website operation risk by a wide margin, this system possesses two sets of the same oil gas transportation pipelines, guarantee under the normal condition one start and reserve, this oil gas defeated system of mixture can be by PLC automatic control simultaneously, can accomplish the defeated and the high-pressure early warning of pipeline of defeated mixture of oil gas automatically.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic view of the unattended intelligent oil-gas mixed transportation system of the utility model;
FIG. 2 is a schematic view of the filter of the present invention;
fig. 3 is a schematic diagram of the control system of the present invention.
Description of reference numerals: 1. a feed conduit; 2. a feed control valve; 3. a temperature transmitter; 4. a wax-proof cleaner; 5. a first oil and gas transport system; 501. a transport pipeline; 502. a first control valve; 503. a filter; 504. an oil-gas mixed transportation pump; 505. a one-way valve; 506. a second control valve; 507. a pressure transmitter; 508. a mechanical pressure gauge; 6. a discharge pipeline; 7. an electromagnetic heater; 8. a blowdown line; 9. a blowdown stop valve; 10. a second oil and gas transport system; 11. a feed emergency pressure relief pipeline; 12. a feeding emergency safety valve; 13. discharging emergency pressure relief pipeline; 14. a discharge emergency safety valve; 15. a total pressure relief conduit; 16. an emergency material storage tank; 17. an emergency pressure relief stop valve; 18. an emergency feeding pipeline; 19. an emergency feeding stop valve; 20. a standby feeding emergency pressure relief pipeline; 21. a standby emergency pressure relief electric valve; 22. a circulation pipe; 23. a circulating electric valve; 24. a spare filtering discharge pipe; 25. a standby filtering and discharging electric valve; 26. and a discharge control valve.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 2, the embodiment discloses an unattended intelligent oil-gas mixed transportation system, which includes a feeding pipeline 1, wherein a feeding control valve 2, a temperature transmitter 3 and a wax-proof descaler 4 are sequentially arranged on the feeding pipeline 1 according to an oil-gas transportation direction, and the tail end of the feeding pipeline 1 is communicated to a first oil-gas transportation system 5; the first oil and gas transportation system 5 comprises a transportation pipeline 501 communicated with the tail end of the feeding pipeline 1, the transportation pipeline 501 is sequentially provided with a first control valve 502, a filter 503, an oil and gas mixed transportation pump 504, a one-way valve 505 and a second control valve 506 according to the oil and gas transportation direction, the transportation pipeline 501 on the inlet side and the outlet side of the oil and gas mixed transportation pump 504 is provided with a pressure transmitter 507 and a mechanical pressure gauge 508, and the tail end of the transportation pipeline 501 is communicated to the outlet pipeline 6; an electromagnetic heater 7 is arranged on the discharge pipeline 6. The pressure transmitter 507 and the mechanical pressure gauge 508 are used together with a stop valve when being used and installed, so that the check valve can be conveniently overhauled at a later stage.
The temperature transmitter 3 converts the signal of the temperature sensor into a current signal, is connected to a secondary instrument to display the corresponding temperature, and the temperature transmitter 3 is used for monitoring the change of the oil gas temperature in the feeding pipeline 1 and feeding back the signal to a control room. The pressure transmitter 507 is used for monitoring the pressure change of oil gas in the transportation pipeline 501 and feeding back signals to the control room, the control room comprehensively controls the running frequency of the oil gas mixed transportation pump 504 according to the temperature and pressure signals of the oil gas, and the electromagnetic heater 7 is used for heating crude oil in the oil gas, so that the crude oil is diluted, the crude oil output pressure is reduced, and a reasonable temperature rise is provided.
The oil-gas mixed transportation system removes an oil-gas separation working section in the middle, oil gas is directly transported to a terminal through the discharge pipeline 6 to be separated through the transportation effect of the first oil-gas transportation system 5, the terminal equipment does not need to be transformed, and the arrangement of an oil-gas transportation pipe network is greatly simplified.
Crude oil is a mixture of various hydrocarbons having complex components, and is also a diamagnetic substance. When crude oil passes through a magnetic field with enough large magnetic field intensity and gradient, wax molecules in disordered thermal motion near the crystallization temperature obtain energy due to the action of Lorentz force, the magnetic collision directions of the wax molecules are adjusted, and a common crystallization nucleation condition is provided, so that a large amount of spherical microcrystals with small diameters are generated and suspended in the crude oil. The wax-proof descaler 4 can prevent the crystalline wax from being generated in the crude oil, and the wax-proof descaler 4 can change the electrostatic potential of the contacted fluid, so that the binding force field between various substance molecules in the fluid is changed, the solid phase particles are in a suspension dispersion state, the formation of wax, scale and corrosion is inhibited, the wax and colloidal substances in the crude oil are in a suspension state and are not easy to be gathered and adsorbed on the pipe wall, various ions and impurities in the liquid phase are not easy to be combined to form the scale, and the bonded scale can be fallen off. The wax-proof descaling device 4 belongs to the prior art, and can be implemented by those skilled in the art, and the structure and principle of the wax-proof descaling device 4 are not described in detail herein.
The oil gas of following the exploitation in the well can be doped with mineral impurity such as sand, and mineral impurity can lead to the transportation system to break down, therefore first oil gas transportation system 5 still includes two sewage pipes 8, and two sewage pipes 8 advance, the transportation pipeline 501 intercommunication of delivery side with oil gas multiphase pump 504 respectively, are provided with blowdown stop valve 9 on the sewage pipe 8, and each sewage pipe 8 communicates to the blowdown pond after joining. It should be noted that, when the sewage is discharged, the feeding control valve 2 and the control valve on the discharging pipeline 6 need to be closed, and the oil-gas mixture transportation pump 504 stops working, so as to discharge the oil gas in the whole system.
In order to make the system continuously operate and prevent the first oil and gas transportation system 5 from breaking down, the system also comprises a second oil and gas transportation system 10, the second oil and gas transportation system 10 and the first oil and gas transportation system 5 have the same structure, and the second oil and gas transportation system 10 and the first oil and gas transportation system 5 are connected in parallel between the feeding pipeline 1 and the discharging pipeline 6. The first and second oil and gas transport systems 5, 10 may be operated alternately to facilitate servicing of one of the transport systems.
In order to isolate the discharge pipeline 6 from the first oil and gas transportation system 5 and the second oil and gas transportation system 10 independently and facilitate the overhaul of the discharge pipeline 6, a discharge control valve 26 is arranged on the discharge pipeline 6, and a discharge control valve 24 is positioned at the upstream of the electromagnetic heater 7.
In order to prevent the oil pressure in the feeding pipeline 1 from being too high, the feeding pipeline 1 is communicated with a feeding emergency pressure relief pipeline 11, the starting end of the feeding emergency pressure relief pipeline 11 is positioned between the feeding control valve 2 and the temperature transmitter 3, and the feeding emergency pressure relief pipeline 11 is provided with a feeding emergency safety valve 12 in the oil-gas pressure relief direction; the emergent relief valve 12 of feeding need cooperate the stop valve to use together when using the installation, and the emergent relief valve 12 both sides of feeding all are provided with the stop valve to the later stage is overhauld it.
In order to prevent the oil pressure in the discharging pipeline 6 from being too high, a discharging emergency pressure relief pipeline 13 is communicated with the discharging pipeline 6, the starting end of the discharging emergency pressure relief pipeline 13 is positioned at the downstream of the electromagnetic heater 7, and a discharging emergency safety valve 14 is arranged in the discharging emergency pressure relief pipeline 13 according to the oil-gas pressure relief direction; emergent relief valve 14 of ejection of compact need cooperate the stop valve to use together when using the installation, and emergent relief valve 12 both sides of feeding all are provided with the stop valve to in the later stage overhaul it.
The tail end of the feeding emergency pressure relief pipeline 11 and the tail end of the discharging emergency pressure relief pipeline 13 are communicated to a main pressure relief pipeline 15, the main pressure relief pipeline 15 is communicated with a feeding hole of an emergency storage tank 16, and an emergency pressure relief stop valve 17 is arranged on the main pressure relief pipeline 15; the discharge gate of emergent storage tank 16 communicates with charge-in pipeline 1 through emergent feed pipeline 18, and the end of emergent feed pipeline 18 is located between temperature transmitter 3 and wax control cleaner 4, is provided with emergent feed stop valve 19 on the emergent feed pipeline 18.
The probability that excessive pressure took place for charge-in pipeline 1 is far greater than ejection of compact pipeline 6 in actual transportation, consequently communicates on charge-in pipeline 1 to have the emergent pressure release pipeline 20 of reserve feeding, and the initiating terminal of the emergent pressure release pipeline 20 of reserve feeding is located the low reaches of wax control descaler 4, and the terminal and the total pressure release pipeline 15 intercommunication of the emergent pressure release pipeline 20 of reserve feeding are provided with the emergent pressure release motorised valve 21 of reserve feeding on the emergent pressure release pipeline 20 of reserve feeding.
When associated gas in the transportation pipeline 501 suddenly increases and is far beyond the transportation upper limit of the oil-gas mixed transportation pump 504, the oil-gas mixed transportation pump 504 generates an air lock phenomenon, so that the discharge capacity of the oil-gas mixed transportation pump 504 is reduced, in order to exhaust gas in the oil-gas mixed transportation pump 504, the system also comprises a circulation pipeline 22, the second oil-gas transportation system 10 and the first oil-gas transportation system 5 are connected in parallel between the feeding pipeline 1 and the discharging pipeline 6, and a circulation electric valve 23 is arranged on the circulation pipeline 22; the filter 503 is communicated with a standby filtering discharging pipe 24, the standby filtering discharging pipe 24 is positioned below the conveying pipeline 501 and communicated to the conveying pipeline 501, and the standby filtering discharging pipe 24 is provided with a standby filtering discharging electric valve 25.
The exhaust process is as follows: in the oil gas exploitation process, the content of associated gas at a certain exploitation stage occasionally increases and exceeds the transportation capacity of the oil gas mixing transportation pump 504, the pressure transmitters 507 positioned at two sides of the oil gas mixing transportation pump 504 detect the pressure in the transportation pipeline 501, specifically, the pressure transmitter 507 at the discharge side of the oil gas mixing transportation pump 504 detects the pressure reduction, the pressure transmitter 507 at the feed side of the oil gas mixing transportation pump 504 detects the pressure increase, at the moment, the standby filtering discharge electric valve 25 acts, because the spare filtering material pipe 24 is located below the transportation pipeline 501, the pure oil material preferentially passes through the spare filtering material pipe 24, the pure oil material is supplemented into the transportation pipeline 501 to reduce the content of the associated gas in the system, if the air lock phenomenon cannot be removed through the operation, the circulating electric valve 23 starts to act discontinuously, the oil gas containing the gas circulates and then passes through the filter 503 again, and the associated gas is stored in the filter 503 at the moment. It should be noted that, since the pressure in the discharge pipe 6 is high, when the circulation motor-operated valve 23 is momentarily opened, the oil gas containing the gas preferentially passes through the circulation pipe 22. Associated gas is only temporarily stored in the filter 503, and along with the transportation of the oil-gas mixture transportation pump 504, the associated gas is gradually transported out, and the associated gas stored in the filter 503 returns to normal. If the operation still can not remove the airlock phenomenon, control reserve emergent pressure release motorised valve 21 action this moment, excessive oil gas especially associated gas circulates to emergent storage tank 16 through reserve emergent pressure release pipeline 20 of feeding.
As shown in fig. 3, the temperature transmitter 3 and the pressure transmitters 507 at the inlet and outlet sides of the oil-gas mixture transmission pump 504 in the oil-gas mixture transmission system are used for collecting relevant data in the pipeline and transmitting the collected data to the PLC controller in the control room, and the PLC controller controls the actions of the oil-gas mixture transmission pump 504, the standby filtering and discharging electric valve 25, the circulating electric valve 23 and the standby emergency pressure-relief electric valve 21. The system is automatically controlled by a PLC (programmable logic controller), can automatically realize the operation of three working conditions, and firstly, realizes the switching operation of the first oil-gas transportation system 5 and the second oil-gas transportation system 10, and ensures that the first oil-gas transportation system and the second oil-gas transportation system are started and standby under normal conditions; secondly, the air lock phenomenon of the oil-gas mixed transportation pump 504 is eliminated; thirdly, the situation of abnormal pressure increase of the feeding pipeline 1 is relieved. The system is controlled by a PLC, which is a preferable mode for controlling the system, and the problem to be solved by the technical scheme is not necessary.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. The utility model provides an intelligent oil-gas mixture transportation system of unmanned on duty which characterized in that: the device comprises a feeding pipeline (1), wherein a wax-proof scale remover (4) is arranged on the feeding pipeline (1), and the tail end of the feeding pipeline (1) is communicated to a first oil-gas transportation system (5);
the first oil-gas transportation system (5) comprises a transportation pipeline (501) communicated with the tail end of the feeding pipeline (1), the transportation pipeline (501) is sequentially provided with a first control valve (502), a filter (503), an oil-gas mixed transportation pump (504), a one-way valve (505) and a second control valve (506) according to an oil-gas transportation direction, pressure transmitters (507) and mechanical pressure gauges (508) are arranged on the transportation pipeline (501) on the feeding side and the discharging side of the oil-gas mixed transportation pump (504), and the tail end of the transportation pipeline (501) is communicated to a discharging pipeline (6);
an electromagnetic heater (7) is arranged on the discharging pipeline (6).
2. The unattended intelligent oil-gas mixture transportation system according to claim 1, wherein: feed control valve (2) and temperature transmitter (3) have set gradually according to oil gas transportation direction on charge-in pipeline (1), temperature transmitter (3) are located the upper reaches of paraffin control cleaner (4).
3. The unattended intelligent oil-gas mixture transportation system according to claim 1, wherein: the first oil and gas transportation system (5) further comprises two sewage pipes (8), the two sewage pipes (8) are respectively communicated with the transportation pipeline (501) on the feeding side and the discharging side of the oil and gas mixed transportation pump (504), and a sewage stop valve (9) is arranged on the sewage pipes (8).
4. The unattended intelligent oil-gas mixture transportation system according to claim 3, wherein: the device is characterized by further comprising a second oil and gas transportation system (10), wherein the second oil and gas transportation system (10) is identical to the first oil and gas transportation system (5) in structure, and the second oil and gas transportation system (10) and the first oil and gas transportation system (5) are connected between the feeding pipeline (1) and the discharging pipeline (6) in parallel.
5. The unattended intelligent oil-gas mixture transportation system according to claim 4, wherein: and a discharge control valve (26) is arranged on the discharge pipeline (6), and the discharge control valve (26) is positioned at the upstream of the electromagnetic heater (7).
6. The unattended intelligent oil-gas mixture transportation system according to claim 2, wherein: a feeding emergency pressure relief pipeline (11) is communicated with the feeding pipeline (1), the starting end of the feeding emergency pressure relief pipeline (11) is positioned between the feeding control valve (2) and the temperature transmitter (3), and a feeding emergency safety valve (12) is arranged on the feeding emergency pressure relief pipeline (11) in the oil-gas pressure relief direction;
a discharging emergency pressure relief pipeline (13) is communicated with the discharging pipeline (6), the starting end of the discharging emergency pressure relief pipeline (13) is positioned at the downstream of the electromagnetic heater (7), and a discharging emergency safety valve (14) is arranged on the discharging emergency pressure relief pipeline (13) in the oil-gas pressure relief direction;
the tail end of the feeding emergency pressure relief pipeline (11) and the tail end of the discharging emergency pressure relief pipeline (13) are communicated to a main pressure relief pipeline (15), the main pressure relief pipeline (15) is communicated with a feeding hole of an emergency storage tank (16), and an emergency pressure relief stop valve (17) is arranged on the main pressure relief pipeline (15);
the discharge gate of emergent storage tank (16) through emergent feed pipeline (18) with charge-in pipeline (1) intercommunication, the end of emergent feed pipeline (18) is located between temperature transmitter (3) and wax control descaler (4), be provided with emergent feed stop valve (19) on emergent feed pipeline (18).
7. The unattended intelligent oil-gas mixture transportation system according to claim 6, wherein: feed pipe (1) is last to communicate has emergent pressure release pipeline of reserve feeding (20), the initiating terminal of the emergent pressure release pipeline of reserve feeding (20) is located the low reaches of wax control scale remover (4), the end of the emergent pressure release pipeline of reserve feeding (20) with total pressure release pipeline (15) intercommunication, be provided with emergent motorised valve of reserve pressure release (21) on the emergent pressure release pipeline of reserve feeding (20).
8. The unattended intelligent oil-gas mixture transportation system according to claim 4, wherein: the system is characterized by further comprising a circulating pipeline (22), wherein the circulating pipeline (22), the second oil and gas transportation system (10) and the first oil and gas transportation system (5) are connected in parallel between the feeding pipeline (1) and the discharging pipeline (6), and a circulating electric valve (23) is arranged on the circulating pipeline (22);
the filter (503) is communicated with a standby filtering discharge pipe (24), the standby filtering discharge pipe (24) is positioned below the conveying pipeline (501) and communicated to the conveying pipeline (501), and a standby filtering discharge electric valve (25) is arranged on the standby filtering discharge pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409528.9U CN210716975U (en) | 2019-08-28 | 2019-08-28 | Unattended intelligent oil-gas mixed transportation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921409528.9U CN210716975U (en) | 2019-08-28 | 2019-08-28 | Unattended intelligent oil-gas mixed transportation system |
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| CN210716975U true CN210716975U (en) | 2020-06-09 |
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| CN201921409528.9U Active CN210716975U (en) | 2019-08-28 | 2019-08-28 | Unattended intelligent oil-gas mixed transportation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410676A (en) * | 2019-08-28 | 2019-11-05 | 华通科创(唐山)石油工程技术服务有限公司 | An unattended intelligent oil and gas mixed transportation system |
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2019
- 2019-08-28 CN CN201921409528.9U patent/CN210716975U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410676A (en) * | 2019-08-28 | 2019-11-05 | 华通科创(唐山)石油工程技术服务有限公司 | An unattended intelligent oil and gas mixed transportation system |
| CN110410676B (en) * | 2019-08-28 | 2024-12-10 | 华信唐山石油装备有限公司 | An unattended intelligent oil and gas mixed transmission system |
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