CN110410676B - An unattended intelligent oil and gas mixed transmission system - Google Patents
An unattended intelligent oil and gas mixed transmission system Download PDFInfo
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- CN110410676B CN110410676B CN201910800947.3A CN201910800947A CN110410676B CN 110410676 B CN110410676 B CN 110410676B CN 201910800947 A CN201910800947 A CN 201910800947A CN 110410676 B CN110410676 B CN 110410676B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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Abstract
本发明公开了一种无人值守智能油气混输系统，包括进料管道，进料管道上设置有防蜡除垢器，进料管道的末端连通至第一油气运输系统，第一油气运输系统包括运输管道、第一控制阀、过滤器、油气混输泵、单向阀和第二控制阀，出料管道上设置有电磁加热器。本发明针对低产液量、高气油比的站点，在满足站点应有功能的前提下，单井产油汇集后可在低温条件下通过油气混输泵并在电磁加热器的作用下直接外输，完全简化了中转站处理流程，优化了集输系统，弃用伴生气管网、热水循环管网，停用缓冲罐、加热炉，大幅降低站点运行风险，同时本油气混输系统可由PLC自动控制，可自动完成对油气的混输。
The present invention discloses an unattended intelligent oil and gas mixed transportation system, including a feed pipeline, a wax prevention and descaling device is arranged on the feed pipeline, the end of the feed pipeline is connected to the first oil and gas transportation system, the first oil and gas transportation system includes a transportation pipeline, a first control valve, a filter, an oil and gas mixed transportation pump, a one-way valve and a second control valve, and an electromagnetic heater is arranged on the discharge pipeline. The present invention is aimed at sites with low liquid production and high gas-oil ratio. Under the premise of meeting the functions that the site should have, the oil production of a single well can be directly transported out under low temperature conditions through an oil and gas mixed transportation pump and under the action of an electromagnetic heater, which completely simplifies the processing flow of the transfer station, optimizes the gathering and transportation system, abandons the associated gas pipeline network and the hot water circulation pipeline network, and stops the buffer tank and the heating furnace, greatly reducing the operation risk of the site. At the same time, the oil and gas mixed transportation system can be automatically controlled by PLC, and can automatically complete the mixed transportation of oil and gas.
Description
Technical Field
The invention relates to the field of oil and gas mixing and conveying, in particular to an unattended intelligent oil and gas mixing and conveying system.
Background
In order to transport the crude oil collected at the crude oil farm, it is necessary to pressurize it and then transport the crude oil to the refinery via a pressure pipeline. Because crude oil contains a large amount of associated gas, water and sand, the transportation of the crude oil is not simple liquid transportation, but transportation of a liquid, gas and solid multiphase mixture.
At present, most of domestic oil-gas mixed transportation systems mainly adopt transfer stations or pressurizing stations to collect single well oil production and then heat, separate and pressurize, and finally convey the oil-gas mixed transportation systems into a pressure pipeline, wherein associated gas is conveyed outwards through an associated gas pipe network after being compressed, oil mixed liquid is conveyed outwards through an oil conveying pump through another process, the oil-gas mixed transportation systems are required to establish an associated gas pipe network, an oil conveying pipe network, a hot water circulation pipe network, a buffer tank, a heating furnace and the like, the early-stage basic investment is huge, two external conveying pipelines of oil and associated gas are required to be established, the process has a plurality of processing links, the heating heat load of a boiler is large, and the oil, gas and solid separation treatment is required to be carried out after the oil is conveyed to a terminal so as to be used for the next process.
Disclosure of Invention
The invention aims to provide an unattended intelligent oil-gas mixed transportation system, which solves the problems that the existing oil-gas mixed transportation system is complex, the processing flow links are more, and two external transportation pipelines of oil and associated gas are required to be established.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention relates to an unattended intelligent oil-gas mixing and conveying system, which comprises a feeding pipeline, wherein a wax-preventing and descaling device is arranged on the feeding pipeline, and the tail end of the feeding pipeline is communicated with a first oil-gas conveying 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 at the feeding side and the discharging side of the oil-gas mixed transportation pump, and the tail end of the transportation pipeline is communicated to the discharging pipeline;
an electromagnetic heater is arranged on the discharging pipeline.
Further, the feeding pipeline is sequentially provided with a feeding control valve and a temperature transmitter according to the oil-gas transportation direction, and the temperature transmitter is positioned at the upstream of the wax-preventing and descaling device.
Further, the first oil gas transportation system further comprises two sewage pipes, the two sewage pipes are respectively communicated with the transportation pipes at the feeding side and the discharging side of the oil gas mixed transportation pump, and a sewage stop valve is arranged on the sewage pipes. Further, the system also comprises a second oil-gas transportation system, wherein the second oil-gas transportation system has the same structure as the first oil-gas transportation system, and the second oil-gas transportation system and the first oil-gas transportation system are connected in parallel between the feeding pipeline and the discharging pipeline.
Further, a discharge control valve is arranged on the discharge pipeline and is positioned at the upstream of the electromagnetic heater.
Further, 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 the feeding emergency pressure relief pipeline is provided with a feeding emergency safety valve according to the oil gas pressure relief direction;
the discharging pipeline is communicated with a discharging emergency pressure relief pipeline, the initial end of the discharging emergency pressure relief pipeline is positioned at the downstream of the electromagnetic heater, and the discharging emergency pressure relief pipeline is provided with a discharging emergency safety valve according to 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 total pressure relief pipeline, the total pressure relief pipeline is communicated with a feed inlet of an emergency storage tank, and an emergency pressure relief stop valve is arranged on the total pressure relief pipeline;
The discharge gate of emergent storage tank pass through emergent feed pipeline with the feed pipeline intercommunication, the end of emergent feed pipeline is located between temperature transmitter and the wax control scale remover, be provided with emergent feed stop valve on the emergent feed pipeline.
Further, the feeding pipeline is communicated with a standby feeding emergency pressure relief pipeline, the starting end of the standby feeding emergency pressure relief pipeline is located at the downstream of the paraffin control scale remover, the tail end of the standby feeding emergency pressure relief pipeline is communicated with the total pressure relief pipeline, and a standby emergency pressure relief electric valve is arranged on the standby feeding emergency pressure relief pipeline.
Further, the device also comprises a circulating pipeline, wherein the circulating pipeline, the second oil gas transportation system and the first oil 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 invention has the beneficial technical effects that:
Aiming at a station with low liquid yield and high gas-oil ratio, under the premise of meeting the functions of the station, the single well oil production can be directly and externally conveyed under the action of an electromagnetic heater through an oil-gas mixed conveying pump under the low temperature condition after being collected, the traditional oil-gas mode is completely changed, an intermediate oil-gas separation working section is removed, three-phase media of oil, gas and water are directly conveyed to a terminal for separation, a gathering and conveying system is optimized, an associated gas pipe network and a hot water circulating pipe network are abandoned, a buffer tank and a heating furnace are stopped, the running risk of the station is greatly reduced, the system is provided with two sets of identical oil-gas conveying pipelines, the normal start and the standby of the system are ensured, meanwhile, the oil-gas mixed conveying system can be automatically controlled by a PLC, and the oil-gas mixed conveying and the high-pressure early warning treatment of pipelines can be automatically completed.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of an unattended intelligent oil and gas mixing and conveying system according to the invention;
FIG. 2 is a schematic view of the mounting connection of the filter of the present invention;
Fig. 3 is a schematic diagram of a control system according to the present invention.
The reference numerals are 1, a feeding pipeline, 2, a feeding control valve, 3, a temperature transmitter, 4, a wax-preventing and descaling device, 5, a first oil and gas transportation system, 501, a transportation pipeline, 502, a first control valve, 503, a filter, 504, an oil and gas mixing pump, 505, a one-way valve, 506, a second control valve, 507, a pressure transmitter, 508, a mechanical pressure gauge, 6, a discharging pipeline, 7, an electromagnetic heater, 8, a sewage pipeline, 9, a pollution discharge stop valve, 10, a second oil and gas transportation system, 11, a feeding emergency pressure relief pipeline, 12, a feeding emergency safety valve, 13, a discharging emergency pressure relief pipeline, 14, a discharging emergency safety valve, 15, a total pressure relief pipeline, 16, an emergency storage tank, 17, an emergency pressure relief valve, 18, an emergency supply pipeline, 19, an emergency supply stop valve, 20, a standby feeding emergency pressure relief pipeline, 21, a standby emergency pressure relief electric valve, 22, a circulating pipeline, 23, a circulating electric valve, 24, a standby filtering discharging pipeline, 25, a standby filtering electric valve, 26 and a discharging control valve.
Detailed Description
In order to make the technical scheme 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 mixing and conveying system, which comprises a feeding pipeline 1, wherein a feeding control valve 2, a temperature transmitter 3 and a wax-preventing and descaling device 4 are sequentially arranged on the feeding pipeline 1 according to an oil-gas conveying direction, the tail end of the feeding pipeline 1 is communicated with a first oil-gas conveying system 5, the first oil-gas conveying system 5 comprises a conveying pipeline 501 communicated with the tail end of the feeding pipeline 1, the conveying pipeline 501 is sequentially provided with a first control valve 502, a filter 503, an oil-gas mixing and conveying pump 504, a check valve 505 and a second control valve 506 according to the oil-gas conveying direction, pressure transmitters 507 and mechanical pressure gauges 508 are respectively arranged on the conveying pipeline 501 at the feeding side and the discharging side of the oil-gas mixing and conveying pump 504, the tail end of the conveying pipeline 501 is communicated with a discharging pipeline 6, and an electromagnetic heater 7 is arranged on the discharging pipeline 6. The pressure transmitter 507 and the mechanical pressure gauge 508 are used together with a stop valve during use and installation, so that the pressure transmitter is convenient to overhaul in later period.
The temperature transmitter 3 converts the signal of the temperature sensor into a current signal, and is connected to the secondary instrument so as 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 the control room. The pressure transmitter 507 is used for monitoring the pressure change of the oil gas in the transportation pipeline 501 and feeding back signals to the control room, the control room comprehensively controls the operation frequency of the oil gas mixing and conveying pump 504 according to the temperature and pressure signals of the oil gas, and the electromagnetic heater 7 is used for heating the crude oil in the oil gas, so that the crude oil is diluted, the crude oil conveying pressure is reduced, and a reasonable temperature rise is provided. The oil-gas mixing transportation system removes the middle oil-gas separation section, and the oil gas is transported through the discharging pipeline 6 under the transportation action of the first oil-gas transportation system 5 to directly transport oil, gas and water three-phase media to the terminal for separation, so that terminal equipment is not required to be modified, 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 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 direction of the wax molecules is adjusted, and the universal crystallization nucleation condition is provided, so that a large number of spherical microcrystals with small diameters are generated and suspended in the crude oil. The wax-proof scale remover 4 can prevent crystalline wax from being generated in crude oil, and the wax-proof scale remover 4 can change the electrostatic motive force of the contacted fluid, so that the bonding force field between various substance molecules in the fluid is changed, solid phase particles are in a suspension dispersion state, the formation of wax, scale and corrosion is inhibited, the wax and colloid substances in the crude oil are in a suspension state and are not easy to gather and adsorb on the pipe wall, various ions and impurities in the liquid phase are not easy to combine to form scale, and the bonded scale can be removed. The wax-proof scaler 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 scaler 4 will not be described herein.
Oil gas extracted from the well can be doped with mineral impurities such as sand, and the mineral impurities can cause a transportation system to fail, so that the first oil gas transportation system 5 further comprises two sewage pipelines 8, the two sewage pipelines 8 are respectively communicated with the transportation pipeline 501 at the feeding side and the discharging side of the oil gas mixing and conveying pump 504, a sewage stop valve 9 is arranged on the sewage pipelines 8, and each sewage pipeline 8 is communicated to a sewage pool after being converged. It should be noted that, when the sewage is discharged, the feeding control valve 2 and the control valve on the discharging pipeline 6 are closed, and the oil-gas mixing pump 504 stops not working, so as to discharge the oil gas in the whole system.
In order to enable the system to continuously operate and prevent the first oil and gas transportation system 5 from malfunctioning, the system further comprises a second oil and gas transportation system 10, wherein the second oil and gas transportation system 10 has the same structure as the first oil and gas transportation system 5, 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 oil and gas transportation system 5 and the second oil and gas transportation system 10 can work alternately, so that one transportation system is convenient to overhaul.
In order to separate the discharging pipeline 6 from the first oil gas transportation system 5 and the second oil gas transportation system 10, the discharging pipeline 6 is convenient to overhaul, a discharging control valve 26 is arranged on the discharging pipeline 6, and the discharging control valve 26 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, 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, the feeding emergency pressure relief pipeline 11 is provided with a feeding emergency safety valve 12 according to the oil gas pressure relief direction, the feeding emergency safety valve 12 is used together with a stop valve when being used and installed, and the two sides of the feeding emergency safety valve 12 are provided with the stop valves so as to facilitate the later maintenance of the feeding emergency safety valve.
In order to prevent the oil pressure in the discharge pipeline 6 from being too high, a discharge emergency pressure relief pipeline 13 is communicated with the discharge pipeline 6, the starting end of the discharge emergency pressure relief pipeline 13 is positioned at the downstream of the electromagnetic heater 7, the discharge emergency pressure relief pipeline 13 is provided with a discharge emergency safety valve 14 according to the oil gas pressure relief direction, the discharge emergency safety valve 14 is matched with a stop valve for use when in use and installation, and the two sides of the feed emergency safety valve 12 are provided with stop valves so as to facilitate the overhaul of the feed emergency safety valve in the later period.
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 total pressure relief pipeline 15, the total pressure relief pipeline 15 is communicated with a feeding port of an emergency storage tank 16, an emergency pressure relief stop valve 17 is arranged on the total pressure relief pipeline 15, a discharging port of the emergency storage tank 16 is communicated with the feeding pipeline 1 through an emergency feeding pipeline 18, the tail end of the emergency feeding pipeline 18 is positioned between the temperature transmitter 3 and the wax-preventing scale remover 4, and an emergency feeding stop valve 19 is arranged on the emergency feeding pipeline 18.
The probability of the excessive pressure of the feeding pipeline 1 is far greater than that of the discharging pipeline 6 in the actual transportation process, so that the feeding pipeline 1 is communicated with a standby feeding emergency pressure relief pipeline 20, the starting end of the standby feeding emergency pressure relief pipeline 20 is positioned at the downstream of the wax-preventing scale remover 4, the tail end of the standby feeding emergency pressure relief pipeline 20 is communicated with the total pressure relief pipeline 15, and a standby emergency pressure relief electric valve 21 is arranged on the standby feeding emergency pressure relief pipeline 20.
When associated gas in the transportation pipeline 501 suddenly increases and is far beyond the transportation upper limit of the oil-gas mixing transportation pump 504, the oil-gas mixing transportation pump 504 generates an airlock phenomenon, so that the displacement of the oil-gas mixing transportation pump 504 is reduced, in order to remove gas in the oil-gas mixing transportation pump 504, the system further comprises a circulation pipeline 22, the second oil-gas transportation system 10 and the first oil-gas transportation system 5 are connected between the feeding pipeline 1 and the discharging pipeline 6 in parallel, a circulation electric valve 23 is arranged on the circulation pipeline 22, a standby filtering discharging pipe 24 is communicated on the filter 503, the standby filtering discharging pipe 24 is positioned below the transportation pipeline 501 and is communicated to the transportation pipeline 501, and a standby filtering discharging electric valve 25 is arranged on the standby filtering discharging pipe 24.
The exhaust process is that the content of associated gas at a certain exploitation stage is increased accidentally in the exploitation process and exceeds the transportation capacity of the oil-gas mixing and conveying pump 504, the pressure transmitters 507 at two sides of the oil-gas mixing and conveying pump 504 detect the pressure in the transportation pipeline 501, specifically, the pressure detected by the pressure transmitter 507 at the discharging side of the oil-gas mixing and conveying pump 504 is reduced, the pressure detected by the pressure transmitter 507 at the feeding side of the oil-gas mixing and conveying pump 504 is increased, at this moment, the standby filter discharging electric valve 25 acts, since the standby filter discharging pipe 24 is positioned below the transportation pipeline 501, pure oil material preferentially passes through the standby filter discharging pipe 24, pure oil material can be supplemented into the transportation pipeline 501 to reduce the content of associated gas in the system, if the operation can not relieve the gas lock phenomenon, the circulating electric valve 23 starts to act discontinuously, and then the associated gas is stored in the filter 503 again. It should be noted that, due to the high pressure on the discharge pipe 6, when the circulation motor valve 23 is instantaneously opened, the oil gas containing the gas preferentially passes through the circulation pipe 22. The associated gas is only temporarily stored in the filter 503, and along with the transportation of the oil-gas mixing pump 504, the associated gas is gradually transported out, and the associated gas stored in the filter 503 returns to normal. If the operation is not capable of releasing the airlock, the standby emergency pressure relief electric valve 21 is controlled to act, and excessive oil gas, particularly associated gas, is circulated to the emergency storage tank 16 through the standby feed emergency pressure relief pipeline 20.
As shown in fig. 3, the temperature transmitter 3 and the pressure transmitter 507 at the feeding and discharging sides of the oil-gas mixing and conveying pump 504 in the oil-gas mixing and conveying system transmit related data in a pipeline for collection to a PLC controller in a control room, and the PLC controller controls actions of the oil-gas mixing and conveying 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, and can automatically realize the operation under three working conditions, namely, the first operation of switching the first oil gas transportation system 5 and the second oil gas transportation system 10, ensuring the start and the standby under normal conditions, the second operation of relieving the airlock phenomenon of the oil gas mixing and conveying pump 504 and the third operation of relieving the abnormal pressure increase of the feeding pipeline 1. The system is controlled by a PLC, which is not necessary for the problem to be solved by the technical proposal, and the PLC is a preferable mode for controlling the system.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (4)
1. The unattended intelligent oil-gas mixing and conveying system is characterized by comprising a feeding pipeline (1), wherein a wax-preventing and descaling device (4) is arranged on the feeding pipeline (1), and the tail end of the feeding pipeline (1) is communicated with a first oil-gas conveying 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 mixing and conveying 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) at the feeding side and the discharging side of the oil and gas mixing and conveying pump (504) are respectively 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 discharging pipeline (6);
an electromagnetic heater (7) is arranged on the discharging pipeline (6);
The system also comprises a second oil-gas transportation system (10), wherein the second oil-gas transportation system (10) has the same structure as the first oil-gas transportation system (5), and the second oil-gas transportation system (10) and the first oil-gas transportation system (5) are connected between the feeding pipeline (1) and the discharging pipeline (6) in parallel;
The novel oil and gas transmission system comprises a feeding pipeline (1), a discharging pipeline (6), a circulating pipeline (22), a first oil and gas transmission system (5), a circulating electric valve (23), a standby filtering discharging pipe (24) and a standby filtering discharging electric valve (25), wherein the circulating pipeline (22) is connected with the second oil and gas transmission system (10) in parallel between the feeding pipeline (1) and the discharging pipeline (6), the standby filtering discharging pipe (24) is communicated with the filter (503), and the standby filtering discharging pipe (24) is positioned below the conveying pipeline (501) and is communicated with the conveying pipeline (501);
The novel paraffin control device is characterized in that a standby feeding emergency pressure relief pipeline (20) is communicated with the feeding pipeline (1), the starting end of the standby feeding emergency pressure relief pipeline (20) is located at the downstream of the paraffin control scale remover (4), the tail end of the standby feeding emergency pressure relief pipeline (20) is communicated with a total pressure relief pipeline (15), and a standby emergency pressure relief electric valve (21) is arranged on the standby feeding emergency pressure relief pipeline (20);
The exhaust process is that the content of associated gas in a certain exploitation stage is increased accidentally and exceeds the transportation capacity of the oil-gas mixed transportation pump (504) in the exploitation process, the pressure transmitters (507) positioned at two sides of the oil-gas mixed transportation pump (504) detect the pressure in the transportation pipeline (501), the pressure transmitters (507) at the discharge side of the oil-gas mixed transportation pump (504) detect the pressure reduction, the pressure transmitters (507) at the feed side of the oil-gas mixed transportation pump (504) detect the pressure increase, at the moment, the standby filter discharge electric valve (25) acts, as the standby filter discharge pipe (24) is positioned below the transportation pipeline (501), pure oil is preferentially fed into the transportation pipeline (501) through the standby filter discharge pipe (24) to reduce the content of associated gas in the system, if the above-mentioned exhaust process can not relieve the gas locking phenomenon, the circulation electric valve (23) starts to act, as the pressure on the discharge pipeline (6) is higher than the pressure on the associated gas mixed transportation pipeline (6), the circulating gas is fed out of the circulating pipeline (503) through the oil-gas containing the circulating pump (503) gradually and then the circulating gas (22) is stored in the circulation pipeline (503) after the circulating gas is gradually and the mixed gas is discharged, if the operation is not enough to release the airlock, the operation of the standby emergency pressure relief electric valve (21) is controlled, and excessive oil gas flows to the emergency storage tank (16) through the standby feeding emergency pressure relief pipeline (20);
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) according to the oil gas pressure relief direction;
The discharging pipeline (6) is communicated with a discharging emergency pressure relief pipeline (13), the starting end of the discharging emergency pressure relief pipeline (13) is positioned at the downstream of the electromagnetic heater (7), and the discharging emergency pressure relief pipeline (13) is provided with a discharging emergency safety valve (14) according to 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 total pressure relief pipeline (15), the total pressure relief pipeline (15) is communicated with a feed inlet of an emergency storage tank (16), and an emergency pressure relief stop valve (17) is arranged on the total pressure relief pipeline (15);
the discharge gate of emergent storage tank (16) through emergent feed pipeline (18) with feed pipeline (1) intercommunication, the end of emergent feed pipeline (18) is located between temperature transmitter (3) and wax control scale remover (4), be provided with emergent feed stop valve (19) on emergent feed pipeline (18).
2. The unattended intelligent oil-gas mixing and conveying system according to claim 1 is characterized in that a feeding control valve (2) and a temperature transmitter (3) are sequentially arranged on the feeding pipeline (1) according to the oil-gas conveying direction, and the temperature transmitter (3) is located at the upstream of the wax-preventing and descaling device (4).
3. The intelligent unattended oil and gas mixing and conveying system according to claim 1, wherein the first oil and gas conveying system (5) further comprises two sewage pipelines (8), the two sewage pipelines (8) are respectively communicated with the conveying pipelines (501) at the inlet side and the outlet side of the oil and gas mixing and conveying pump (504), and a sewage stop valve (9) is arranged on the sewage pipelines (8).
4. The unattended intelligent oil and gas mixing and conveying system according to claim 1, wherein a discharge control valve (26) is arranged on the discharge pipeline (6), and the discharge control valve (26) is located upstream of the electromagnetic heater (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800947.3A CN110410676B (en) | 2019-08-28 | 2019-08-28 | An unattended intelligent oil and gas mixed transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800947.3A CN110410676B (en) | 2019-08-28 | 2019-08-28 | An unattended intelligent oil and gas mixed transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110410676A CN110410676A (en) | 2019-11-05 |
| CN110410676B true CN110410676B (en) | 2024-12-10 |
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| CN111706786B (en) * | 2020-05-06 | 2021-12-14 | 西安长庆科技工程有限责任公司 | Crude oil switching integrated control device and control method |
| CN113188042B (en) * | 2021-04-30 | 2024-12-17 | 江苏鸿胜泵业科技有限公司 | Unmanned on duty oil gas mixed transportation flow device |
| CN113433900B (en) * | 2021-06-16 | 2022-02-11 | 深圳市佳运通电子有限公司 | Unattended intelligent centralized control method and system for oil field station |
| CN115614669A (en) * | 2021-07-13 | 2023-01-17 | 中国石油化工股份有限公司 | Intelligent oil-gas mixed transportation transfer equipment |
| CN114876453B (en) * | 2022-05-05 | 2024-10-25 | 西南石油大学 | An oil-gas-sand multiphase mixed transport pump experimental system capable of automatically adjusting medium composition and parameters |
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