CN110656912A - Oil field ground gathering and transferring system and gathering and transferring method - Google Patents
Oil field ground gathering and transferring system and gathering and transferring method Download PDFInfo
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- CN110656912A CN110656912A CN201910907487.4A CN201910907487A CN110656912A CN 110656912 A CN110656912 A CN 110656912A CN 201910907487 A CN201910907487 A CN 201910907487A CN 110656912 A CN110656912 A CN 110656912A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 130
- 239000003921 oil Substances 0.000 claims abstract description 52
- 239000010779 crude oil Substances 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 16
- 210000000056 organ Anatomy 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 75
- 230000005514 two-phase flow Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/006—Combined heating and pumping means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses an oil field ground gathering and transporting system and method. The main mechanism device is connected with the ball collecting barrel device through a pipeline, an outlet of the ball collecting barrel device is connected with the new energy heating device through a pipeline, a caching device is arranged behind the new energy heating device and stores fluid, the new energy heating device inputs the fluid into an external transportation system through an oil-gas mixed transportation pump after heating the fluid, and the control system controls the ball collecting barrel device, the new energy heating device, the caching device and the oil-gas mixed transportation pump through cables. The system simplifies the process flow of the site, meets the requirements of crude oil gathering and transportation and heating in the oil field, reduces the consumption of conventional fossil energy, realizes totally-closed mixed transportation of oil gas, is safe and environment-friendly, and reduces construction investment and later-stage production and operation cost.
Description
Technical Field
The invention belongs to the technical field of oil field ground gathering and transportation, and particularly relates to an oil field ground gathering and transportation system and a gathering and transportation method.
Background
A large amount of crude oil in oil fields in China needs to be heated and transported outwards, gas and liquid need to be separated, liquid is heated and transported outwards, gas is separately transported outwards, a crude oil separation buffer tank is added, the crude oil separation buffer tank is not closed, and the process flow of a station is complex. Meanwhile, the temperature of the crude oil is lower, the water content of the oil field is higher and higher along with the extension of the development of the oil field, a large amount of crude oil or natural gas is needed to heat the water-containing crude oil in order to meet the requirements of export and dehydration, and the conventional energy consumption is high.
Disclosure of Invention
In order to solve the problems, the invention provides an oil field ground gathering and transportation system and a gathering and transportation method, which meet the requirements of oil field crude oil outward transportation heating and simplified in-station process flow.
In order to achieve the purpose, the oil field ground gathering and transportation system comprises a main engine shut-off device, a first new energy heating device, a caching device, an oil-gas mixed transportation pump, a second new energy heating device and an external transportation system which are sequentially connected through pipelines;
the system comprises a main engine control device, a first new energy heating device, a second new energy heating device and a control device, wherein the main engine control device is used for collecting well group incoming oil pipelines and collecting crude oil into an oil pipe; the second new energy heating device and the first new energy heating device have the same structure; the external transportation system is used for connecting a downstream station and comprises an oil pipeline and a gas-liquid two-phase flowmeter arranged at the tail end of the oil pipeline; the first new energy heating device, the buffer device, the oil-gas mixed transportation pump, the second new energy heating device and the external transportation system are used for oil-gas closed continuous mixed transportation.
Further, a second pressure detection device is installed in the cache device, the second pressure detection device is used for detecting the pressure of the cache device and transmitting the pressure of the cache device to the control system, and when the pressure of the cache device exceeds a set value, the control system controls a bypass switch of the cache device to be opened to release the pressure;
the first new energy heating device is provided with a first temperature detection device, the second new energy heating device is provided with a second temperature detection device, the first temperature detection device and the second temperature detection device are both connected with the control system, detected temperatures are transmitted to the control system, and the control system adjusts the heating power of the first new energy heating device and the second new energy heating device according to the received temperatures, so that the first new energy heating device and the second new energy heating device heat gas-liquid mixtures in the first new energy heating device and the second new energy heating device to a set temperature range.
Further, a ball collecting cylinder device is arranged between the switchboard device and the first new energy heating device and used for collecting paraffin removal balls of the pipelines of each well group.
Furthermore, a first pressure detection device is installed in the ball cylinder receiving device and used for detecting the pressure of the ball cylinder receiving device and transmitting the pressure of the ball cylinder receiving device to the control system, and when the pressure of the ball cylinder receiving device exceeds a set value, the control system controls a bypass switch of the ball cylinder receiving device to be opened to release the pressure.
The oil field ground gathering and transporting method utilizing the oil field ground gathering and transporting system comprises the following steps:
and 3, heating the pressurized oil-gas mixture by the second new energy heating device to obtain the pressurized and heated oil-gas mixture, and conveying the pressurized and heated oil-gas mixture into an external conveying system and conveying the pressurized and heated oil-gas mixture to a downstream station through the external conveying system.
Further, heating the oil-gas mixture to 30-35 ℃ by a first new energy heating device; and 3, heating the oil-gas mixture to the export system by the second new energy heating device, and increasing the heating power of the second heating device when the temperature of the heated crude oil is less than 45 ℃ in the set continuous time so that the temperature of the oil-gas mixture flowing into the export system is greater than 45 ℃.
Furthermore, the first new energy heating device preferentially selects an air source heat pump or/and a solar heat collector to heat the oil-gas mixture, and when the heating temperature of the first new energy heating device is lower than the set inlet temperature of the variable-frequency control oil-gas mixed transportation pump, the electromagnetic heater of the first new energy heating device is started to heat the crude oil.
Further, when the pressure at the inlet of the variable-frequency oil-gas mixed transportation pump is less than 0.25MPa, the operating frequency of the oil-gas mixed transportation pump is reduced; when the pressure is more than 0.5MPa, the operating frequency of the oil-gas mixed transportation pump is improved.
Compared with the prior art, the invention has at least the following beneficial technical effects:
according to the system, the conventional oil field gathering and transportation process system is changed, a separation buffer device is omitted, an oil-gas mixed transportation pump is adopted for transportation, gas and liquid are not separated, oil-gas mixed transportation is directly performed, the site process flow is simplified, oil-gas full-closed mixed transportation is realized, and the system is safe and environment-friendly; meanwhile, the new energy is applied to heating the crude oil, the requirements of crude oil gathering and transportation and heating in an oil field are met, the consumption of conventional fossil energy is reduced, and the construction investment and the later-stage production and operation cost are reduced.
The oil field ground gathering and transportation method provided by the invention meets the requirements of oil field crude oil gathering and transportation and heating, reduces the consumption of conventional fossil energy, realizes totally-closed oil-gas mixed transportation, is safe and environment-friendly, and reduces construction investment and later-stage production and operation cost.
Further, in the step 2, the oil-gas mixture is heated to 30-35 ℃ by a first new energy heating device; and 3, heating the oil-gas mixture to the export system by the second new energy heating device, and increasing the heating power of the second heating device when the temperature of the heated crude oil is less than 45 ℃ in the set continuous time so that the temperature of the oil-gas mixture flowing into the export system is greater than 45 ℃. The oil gas heating only needs 30-35 ℃ before the oil gas mixed transportation equipment, the associated gas dissolved in crude oil overflows due to overhigh temperature, the discharge capacity of the oil gas mixed transportation pump is reduced, and the efficiency and the service life of the oil gas mixed transportation pump are influenced, so the oil gas mixed transportation pump needs to be heated again at the back, and the condition that the exported gas and liquid reaches a downstream station without wax deposition is ensured.
Further, when the heating temperature of the first new energy heating device is lower than the set inlet temperature of the variable-frequency control oil-gas mixed transportation pump, the electromagnetic heater of the first new energy heating device is started to heat the crude oil, the new energy is utilized to the maximum extent to heat, and when the heating capacity of the new energy does not meet the requirement, the electromagnetic heater is started, so that the conveying efficiency is ensured.
Further, when the pressure at the inlet of the variable-frequency oil-gas mixed transportation pump is less than 0.25MPa, the operating frequency of the oil-gas mixed transportation pump is reduced; when the pressure is more than 0.5MPa, the operation frequency of the oil-gas mixed transportation pump is improved, and the oil-gas continuous transportation and the constant inlet pressure of the oil-gas mixed transportation pump are ensured.
Drawings
FIG. 1 is a schematic representation of an oilfield surface gathering system;
in the drawings: 1-a switchboard closing device, 2-a ball collecting barrel device, 31-a first new energy heating device, 32-a second new energy heating device, 4-a cache device, 5-an oil-gas mixed transportation pump, 6-an external transportation system and 7-a control system.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the oil field ground gathering and transportation system comprises a control system 7, and a main unit closing device 1, a ball collecting barrel device 2, a first new energy heating device 31, a buffer device 4, an oil-gas mixed transportation pump 5, a second new energy heating device 32 and an external transportation system 6 which are sequentially connected through pipelines. Wherein, the switchboard device 1 is connected with the ball receiving barrel device 2 through a pipeline, the outlet of the ball receiving barrel device 2 is connected with the first new energy heating device 31 through a pipeline, the rear end of the new energy heating device 3 is connected with a buffer device 4, the buffer device 4 is used for storing fluid, the fluid is input into the second new energy heating device 32 through the oil-gas mixed transportation pump 5 and is heated to the external transportation system 6, and the control system 7 is connected with the ball receiving barrel device 2, the new energy heating device 3, the buffer device 4 and the oil-gas mixed transportation pump 5 through cables.
The main organ device 1 is used for collecting well group oil supply pipelines and collecting crude oil into an oil pipe. The ball collecting cylinder device 2 is used for collecting paraffin removal balls of pipelines of each well group. The first new energy heating device 31 includes an air source heat pump, a solar heat collector and an electromagnetic heater.
The external transportation system 6 is used for measuring external transportation gas-liquid two-phase flow and connecting with a downstream station, and comprises a gas-liquid two-phase flow meter and an oil pipeline. The gas-liquid two-phase flowmeter is installed in an oil pipeline. The measurement result of the gas-liquid two-phase flow meter is transmitted to the control system 7 through a cable, and the control system 7 is used for controlling the opening degree of a valve of an oil pipeline of the external transportation system 6 according to the measurement value of the gas-liquid two-phase flow meter.
The ball collecting cylinder device 2 is internally provided with a first pressure detection device, the first pressure detection device is used for detecting the pressure of the ball collecting cylinder device and transmitting the pressure of the ball collecting cylinder device to the control system 7, and when the pressure of the ball collecting cylinder device exceeds a set value, the control system controls a bypass switch of the ball collecting cylinder device to be opened to release pressure; so as to ensure the safe operation of the ball collecting cylinder device 2.
The second pressure detection device is installed in the cache device 4 and used for detecting the pressure of the cache device 4 and transmitting the pressure of the cache device 4 to the control system 7, and when the pressure of the cache device 4 exceeds a set value, the control system controls a bypass switch of the cache device 4 to be opened to release the pressure; to ensure the safe operation of the cache receiving device 4.
The first new energy heating device 31 and the second new energy heating device 32 are both provided with electromagnetic heating and a solar energy and electromagnetic heating combined heating mode. The oil-gas mixed transportation pump 5 adopts frequency conversion local control. The first temperature detection device is installed in the first new energy heating device 31, the second temperature detection device is installed in the second new energy heating device 32, the first temperature detection device and the second temperature detection device are both connected with the control system, detected temperatures are transmitted to the control system 7, and the control system adjusts heating power of the first new energy heating device 31 and the second new energy heating device 32 according to received temperature information. The first new energy heating device 31 and the second new energy heating device 32 heat the gas-liquid mixture therein to a set temperature range.
The new energy heating device 3, the buffer device 4, the oil-gas mixed transportation pump 5, the outward transportation system 6 and the control system 7 are used for oil-gas closed continuous mixed transportation, and no medium is discharged in the system.
The working principle of the oil field ground gathering and transporting system is as follows:
the new energy heating process comprises the following steps: crude oil sequentially passes through the main organ device 1 and the ball collecting barrel device 2 and enters the first new energy heating device 31, the crude oil is heated to 30-35 ℃ through the first new energy heating device 31 and is stored in the cache device 4, and the cache device has the functions of: the oil gas is conveniently and fully mixed, the overpressure of the pipeline is prevented, and the oil gas is conveyed to the second new energy heating device 32 through the variable frequency control oil gas mixing transportation pump 5 and then is heated to 45 ℃ and then is conveyed to the external transportation system 6. The oil gas heating only needs 30-35 ℃ before the oil gas mixed transportation equipment, the associated gas dissolved in crude oil overflows due to overhigh temperature, the discharge capacity of the oil gas mixed transportation pump is reduced, the efficiency and the service life of the oil gas mixed transportation pump are affected, and therefore the oil gas mixed transportation pump needs to be heated again behind the oil gas mixed transportation pump to ensure that the gas liquid output outside reaches a downstream station without wax deposition.
The electromagnetic heating and new energy heating process comprises the following steps: when the control system 7 detects that the new energy heating temperature of the first new energy heating device 31 is lower than the set inlet temperature of 35 ℃ of the variable frequency control oil-gas multiphase pump 5, the control system 7 sends an instruction to start the electromagnetic heater of the first new energy heating device 31 to heat the crude oil. After heating, the oil-gas multiphase pump 5 is controlled to output by frequency conversion.
Frequency conversion control: the control system 7 monitors the pressure on an inlet pipeline through a pressure transmitter arranged at the inlet of the variable-frequency oil-gas mixed transportation pump 5, reduces the operation frequency of the oil-gas mixed transportation pump 5 according to the closed-loop automatic control regulation of the system when the pressure is less than 0.25MPa, and keeps 10Hz operation when the lowest pressure reaches 10 Hz; when the pressure is more than 0.5MPa, the automatic adjustment is carried out according to the station gas liquid amount, the running frequency of the oil-gas mixed transportation pump 5 is improved, and the highest working frequency reaches 50 Hz; thereby ensuring the oil-gas continuous delivery and the constant pressure of the inlet of the oil-gas mixed delivery pump.
The heating process of the new energy for external transportation is as follows: the method comprises the steps that crude oil is pressurized through a variable frequency control oil-gas multiphase pump 5 and then enters a second new energy heating device 32, when a starting current signal of the variable frequency oil-gas multiphase pump is detected, a control system starts the second new energy heating device 32, the second new energy heating device 32 heats the crude oil, the heated crude oil enters an external transportation system 6, and when the temperature of the heated crude oil is lower than 45 ℃ within a set continuous time, a control system 7 controls the second heating device to improve heating power, so that the temperature of an oil-gas mixture flowing into the external transportation system 6 is higher than 45 ℃.
The process system can realize heating or heating and crude oil gathering and transportation modes: firstly, supplying heat by using new energy sources independently, and secondly, supplying heat by combining the new energy sources with electromagnetic heating; and oil gas closed continuous mixed transportation can be realized.
Data transmission and remote control processes: the control system 7 is connected with the oil field digital management platform to realize data transmission and remote control and achieve unattended operation.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The oil field ground gathering and transportation system is characterized by comprising a switchboard device (1), a first new energy heating device (31), a cache device (4), an oil-gas mixed transportation pump (5), a second new energy heating device (32) and an external transportation system (6) which are sequentially connected through pipelines;
the system comprises a main organ device (1), a first new energy heating device (31), a second new energy heating device and a control device, wherein the main organ device (1) is used for collecting well group incoming oil pipelines and collecting crude oil into an oil pipe, and the first new energy heating device comprises an air source heat pump, a solar heat collector and an electromagnetic heater; the second new energy source heating device (32) and the first new energy source heating device (31) have the same structure;
the external conveying system (6) is used for connecting a downstream station, and the external conveying system (6) comprises an oil pipeline and a gas-liquid two-phase flowmeter arranged at the tail end of the oil pipeline;
the first new energy heating device (31), the buffer device (4), the oil-gas mixed transportation pump (5), the second new energy heating device (32) and the external transportation system (6) are used for oil-gas closed continuous mixed transportation.
2. The oilfield ground gathering and transportation system according to claim 1, wherein a second pressure detection device is installed in the buffer device (4), the second pressure detection device is used for detecting the pressure of the buffer device (4) and transmitting the pressure of the buffer device (4) to the control system (7), and when the pressure of the buffer device (4) exceeds a set value, the control system controls a bypass switch of the buffer device (4) to be opened to release the pressure;
the first new energy heating device (31) is internally provided with a first temperature detection device, the second new energy heating device (32) is internally provided with a second temperature detection device, the first temperature detection device and the second temperature detection device are both connected with the control system and transmit the detected temperature to the control system (7), and the control system (7) adjusts the heating power of the first new energy heating device (31) and the second new energy heating device (32) according to the received temperature, so that the first new energy heating device (31) and the second new energy heating device (32) heat the gas-liquid mixture in the first new energy heating device and the second new energy heating device to a set temperature range.
3. The oilfield ground gathering and transportation system according to claim 1, wherein a ball collecting barrel device (2) is arranged between the main organ device (1) and the first new energy source heating device (31), and the ball collecting barrel device (2) is used for collecting paraffin balls of pipelines of each well group.
4. The oilfield ground gathering and transferring system according to claim 3, wherein the ball collecting cylinder device (2) is provided with a first pressure detection device, the first pressure detection device is used for detecting the pressure of the ball collecting cylinder device and transmitting the pressure of the ball collecting cylinder device to the control system (7), and when the pressure of the ball collecting cylinder device exceeds a set value, the control system (7) controls a bypass switch of the ball collecting cylinder device to be opened to release pressure.
5. An oilfield surface gathering method, characterized in that the oilfield surface gathering system of claim 1 is used, and the oilfield surface gathering method comprises the following steps:
step 1, collecting oil-gas mixtures in a well region, entering a master control device (1), conveying the oil-gas mixtures to a first new energy heating device (31) through the master control device (1), and heating the oil-gas mixtures by the first new energy heating device (31);
step 2, the heated oil-gas mixture enters an oil-gas mixed transportation pump (5) through a buffer device (4) to be pressurized, and the oil-gas mixed transportation pump (5) inputs the oil-gas mixture into a second new energy heating device (32);
and 3, heating the pressurized oil-gas mixture by using a second new energy heating device (32) to obtain the pressurized and heated oil-gas mixture, and conveying the pressurized and heated oil-gas mixture into an outward conveying system (6) and conveying the pressurized and heated oil-gas mixture to a downstream station through the outward conveying system (6).
6. The method for surface gathering on oil field according to claim 5, characterized in that, in the step 2, the oil gas mixture is heated to 30-35 ℃ by the first new energy source heating device (31); in the step 3, the oil-gas mixture is heated by the second new energy heating device (32) to the export system (6), and when the temperature of the heated crude oil is less than 45 ℃ in the set continuous time, the heating power of the second heating device is increased, so that the temperature of the oil-gas mixture flowing into the export system (6) is greater than 45 ℃.
7. The oilfield ground gathering and transporting method according to claim 5, wherein the first new energy heating device (31) is an air source heat pump or/and a solar heat collector for heating the oil-gas mixture, and when the heating temperature of the first new energy heating device (31) is lower than the set inlet temperature of the variable frequency control oil-gas mixing and transporting pump (5), an electromagnetic heater of the first new energy heating device (31) is started to heat crude oil.
8. The oilfield surface gathering and transportation method according to claim 5, wherein when the pressure at the inlet of the variable frequency oil-gas mixing and transportation pump (5) is less than 0.25MPa, the operating frequency of the oil-gas mixing and transportation pump (5) is reduced; when the pressure is more than 0.5MPa, the operating frequency of the oil-gas mixed transportation pump (5) is improved.
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| CN201910907487.4A CN110656912A (en) | 2019-09-24 | 2019-09-24 | Oil field ground gathering and transferring system and gathering and transferring method |
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| CN201910907487.4A CN110656912A (en) | 2019-09-24 | 2019-09-24 | Oil field ground gathering and transferring system and gathering and transferring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114666930A (en) * | 2022-03-04 | 2022-06-24 | 西安川秦石油科技有限公司 | Electromagnetic heating ball collecting device for oil pipeline and heating ball collecting method thereof |
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| CN2913791Y (en) * | 2005-10-25 | 2007-06-20 | 张福坤 | Electromagnetic heating tube for crude oil gathering pipeline |
| CN102815474A (en) * | 2011-06-09 | 2012-12-12 | 中国石油化工股份有限公司华东分公司采油厂 | Air-source and solar compound heating type crude oil storage and transportation system |
| CN103244824A (en) * | 2012-05-21 | 2013-08-14 | 中国石油天然气股份有限公司 | Pressurizing heating oil gas mixing transportation system and method |
| CN109340570A (en) * | 2018-11-25 | 2019-02-15 | 西安大漠石油能源科技工程有限公司 | Skid-mounted oil-gas mixed transportation device |
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| CN114666930A (en) * | 2022-03-04 | 2022-06-24 | 西安川秦石油科技有限公司 | Electromagnetic heating ball collecting device for oil pipeline and heating ball collecting method thereof |
| CN114666930B (en) * | 2022-03-04 | 2023-08-08 | 西安川秦石油科技有限公司 | Electromagnetic heating ball collecting device for oil pipeline and heating ball collecting method thereof |
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Application publication date: 20200107 |