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CN112648732B - Crude oil outward transportation heating system utilizing oil field reinjection water heat energy - Google Patents

Crude oil outward transportation heating system utilizing oil field reinjection water heat energy Download PDF

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Publication number
CN112648732B
CN112648732B CN201910956524.0A CN201910956524A CN112648732B CN 112648732 B CN112648732 B CN 112648732B CN 201910956524 A CN201910956524 A CN 201910956524A CN 112648732 B CN112648732 B CN 112648732B
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heat
heat exchange
crude oil
pipeline
medium
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CN112648732A (en
Inventor
秦延才
张正强
庄栋
田承村
王红
孟勇
赵永杰
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China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co Hekou Oil Extraction Plant
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China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co Hekou Oil Extraction Plant
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00Fluid heaters characterised by the use of heat pumps
    • F24H4/02Water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/10Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Road Paving Structures (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

The invention relates to a crude oil outward transportation heating system utilizing the heat energy of oilfield reinjection water, which can absorb heat from the reinjection water and convert the absorbed heat into crude oil in time for outward transportation heating, thereby saving energy and reducing consumption. The injected water recovery heat exchange skid block is provided with a heat exchange device provided with a refrigerant coil and a heating device provided with a refrigerant medium compressor and a heat exchanger, wherein the refrigerant coil in the heat exchange device is immersed in a heat-conducting medium of a heat exchange shell, and a circulation is formed between the refrigerant coil and a refrigerant medium pipe network of the heat exchanger through a heat-carrying medium pipeline and a heat exchange medium backflow pipeline; one end of an output crude oil coil pipe in the crude oil heater is connected with an output crude oil input pipeline, and the other end of the output crude oil coil pipe is connected with a crude oil output pipeline; the oilfield reinjection water is connected with the injected water inlet pipeline of the heat exchange pry block box body through the injected water incoming pipeline and is injected into the stratum after being connected with the injected water reinjection pipeline through the injected water outlet pipeline, and therefore the heat efficiency of the heat exchange device is effectively improved.

Description

Crude oil outward transportation heating system utilizing oil field reinjection water heat energy
Technical Field
The invention relates to equipment for utilizing associated geothermal energy in the oil field injection and production process, in particular to a crude oil outward-conveying heating system utilizing the heat energy of oil field reinjection water, which can absorb heat from the reinjection water, convert the absorbed heat in time and heat crude oil outward, thereby saving energy and reducing consumption.
Background
In the process of oil field injection and production, an oil well lifts produced liquid in a stratum to the ground through a lifting device, and in the process of oil production, the produced liquid of the oil well is actually a mixture of oil, gas, water, sand and other impurities and is conveyed to each gathering and transportation station warehouse through a gathering and transportation pipe network. The produced substances of the oil well are intensively subjected to gas-liquid separation in a gathering and transportation station, injected water is reinjected after oil removal, sand removal, deoxidation and corrosion prevention treatment, and the treated crude oil is heated and then is transported out. A large amount of terrestrial heat is associated in the produced liquid in the oil extraction process of the oil field, but the heat in the reinjection water is not effectively utilized, the average water temperature of the produced water reinjected into the stratum is about 45 ℃, if the temperature of the produced water can be utilized by 10 ℃, the saved standard coal amount is considerable every year.
The method aims at the problems that a large amount of stratum heat is associated in the oil field injection and production process, heat is wasted in the water injection process, crude oil needs to be heated and then is output, how to efficiently utilize the heat energy is the energy-saving and consumption-reducing light point of the petroleum industry.
In order to effectively utilize the heat energy, the second-class lithium bromide absorption heat pump is applied to an oil field production system at present, the obtained heat is taken as a heat source of the absorption heat pump to be introduced into a heat pump evaporator, and the absorption heat pump is adopted to heat export crude oil.
The existing heat energy utilization devices and methods for utilizing formation heat include the following devices:
a crude oil heating system for an oil field combined station is characterized in that a heat source inlet of a geothermal water-oil liquid heat exchanger is connected with an outlet of a geothermal water lifting pump through a pipeline, a heat source outlet of the geothermal water-oil liquid heat exchanger is connected with a heat source inlet of a heating heat pump, a heat using inlet of the geothermal water-oil liquid heat exchanger is connected with a crude oil liquid incoming pipeline, and a heat using outlet of the geothermal water-oil liquid heat exchanger is connected with a crude oil liquid outgoing pipeline through a valve; a heat source outlet of the warming heat pump is connected with the geothermal water recharging pump, a high-temperature water outlet of the warming heat pump is connected with a heat source inlet of the clear water-oil liquid heat exchanger, and a high-temperature water inlet of the warming heat pump is connected with a heat source outlet of the clear water-oil liquid heat exchanger; the heat inlet of the clear water-oil liquid heat exchanger is connected with the heat outlet of the geothermal water-oil liquid heat exchanger; the heat-using outlet of the clear water-oil liquid heat exchanger is connected with the crude oil liquid external transmission pipeline through a valve. The invention has the advantages of low energy consumption, low investment, low heat supply cost, low carbon, green, environmental protection and the like. However, the invention absorbs heat through multiple oil liquid contact heat conduction, so that the efficiency is low, ground equipment and a pipe network are complex, and the assembly and the decomposition are not applied.
A crude oil heating furnace and a control system thereof comprise a fuel gas adjusting control system and an excess air coefficient control system; the heating mode of the control system is that the cylindrical water jacket indirectly heats the crude oil, and is a control mode of adopting a PLC automatic control system and a remote workstation which can be connected with the PLC control system; the invention solves the technical problems that in the prior art, the control is only carried out according to the output temperature signal of crude oil, the control delay degree of a water jacket heating furnace is high, the adaptability to unstable working conditions is weak, the actual excess air coefficient cannot be effectively controlled, the control precision of the existing single-loop control scheme is low, the time delay degree is high, the fluctuation of the oil outlet temperature is large, and the purpose of accurately controlling the outlet temperature of the crude oil of the heating furnace cannot be achieved. The invention combines feedforward prejudgment regulation and feedback regulation of gas flow, so that the requirements of low delay, low energy consumption, low pollution and high precision of crude oil outlet liquid temperature control and effective control of an excess air coefficient are realized. The invention also utilizes the control system to adjust the combustion mode of the heating furnace to heat the crude oil.
A crude oil external transportation heating system based on waste heat of injected water in an oil field comprises a crude oil heating water return pipe, a crude oil heating water supply pipe, a high-temperature water pump, a high-temperature centrifugal heat pump unit, a clear water circulating pump, an injected water heat exchanger and an injection water pump, wherein the crude oil heating water return pipe is connected with the high-temperature centrifugal heat pump unit through the high-temperature water pump, and the crude oil heating water supply pipe is connected with the high-temperature centrifugal heat pump unit; the oilfield injection water pipeline is connected with the injection water heat exchanger, an injection water pump is arranged on the oilfield injection water pipeline, and the injection water heat exchanger is connected with the high-temperature centrifugal heat pump unit through a clean water circulating pump. The advantages are that: the energy utilization efficiency is high, the energy is saved, the operation cost is low, the environmental protection effect is obvious, the reinjection of injected water is facilitated, and the device is safe and reliable. The invention creates a crude oil output heating system by utilizing waste heat of injected water in an oil field, does not use a heat medium for heat conduction, has low heat conduction efficiency and cannot be expanded in a combined mode.
The utility model provides a water source heat pump crude oil heating system, including three-phase separator, the setting tank, water source heat pump set, the heat exchanger, the buffer tank, soften the water pump, pour into water pitcher and injected water outward transport pump, the heat exchanger is including high temperature injected water crude oil heat exchanger, high temperature demineralized water crude oil heat exchanger, ultra-temperature demineralized water crude oil heat exchanger and demineralized water injection water heat exchanger, water source heat pump set is including water source high temperature heat pump set and water source ultra-temperature heat pump set. The invention fully recovers the waste heat of the injected water in each temperature section of the oil field by utilizing the heat exchanger and the water source high-temperature heat pump system to heat the crude oil, realizes the graded utilization of the injected water according to different temperatures, and increases the economical efficiency of the system; the two-stage heat pump system is utilized to carry out step heating on the crude oil, so that the energy efficiency of the heat pump system is exerted to the utmost extent, and the economy of the whole heating system is improved; the use of the buffer tank reduces the starting and stopping times of the hot standby equipment, and improves the reliability of the equipment; the invention replaces a heating furnace, saves energy and reduces emission. The invention directly utilizes the water source heat pump to directly heat the crude oil, the heated crude oil is coked, the heating efficiency is influenced if the heating efficiency is low, the water source heat pump is damaged if the heating efficiency is high, in addition, the station and warehouse reconstruction project is large, the original heating furnace needs to be removed, once the water source heat pump is damaged, the direct risk of shutdown is brought to the operation of the station and warehouse, and the invention is not suitable for the reconstruction and maintenance of the station and warehouse.
The utilization mode of the heat energy has the problems of scaling and corrosion of the heat exchanger, low heating temperature and the like, so the heat energy utilization mode is not popularized and applied. At present, the equipment cost for utilizing the associated waste heat of the part of the stratum is higher, and the utilization rate is low. Under the new situation of development with economic benefits, energy conservation and consumption reduction become inevitable choices of oil fields, and the equipment is in urgent need of improvement.
Disclosure of Invention
The invention aims to provide a crude oil outward transportation heating system utilizing the heat energy of oil field reinjection water, which can fully absorb the heat in the oil field reinjection water, convert the absorbed heat in time and heat the crude oil outward transportation, thereby saving energy, reducing consumption and improving economic benefits.
In order to achieve the purpose, the invention adopts the following technical scheme:
a crude oil outward transportation heating system utilizing oil field reinjection water thermal energy is characterized in that in the crude oil outward transportation heating system, an injected water recovery heat exchange skid block is provided with a heat exchange device provided with a refrigerant coil and a heating device provided with a refrigerant medium compressor and a heat exchanger, the refrigerant coil in the heat exchange device is immersed in a heat conducting medium of a heat exchange shell, and circulation is formed between the refrigerant coil and a refrigerant medium pipe network of the heat exchanger through a heat carrying medium pipeline and a heat exchange medium backflow pipeline; installing a heat exchange device in a heat exchange prying block box body and immersing the heat exchange device in oil field reinjection water; the heat exchange medium in the heat exchanger and the heat medium in the crude oil heater form circulation through a heat-carrying heat medium pipeline and a heat medium reflux pipeline; one end of an output crude oil coil pipe in the crude oil heater is connected with an output crude oil input pipeline, and the other end of the output crude oil coil pipe is connected with a crude oil output pipeline; the oilfield reinjection water is connected with an injection water inlet pipeline of the heat exchange pry block box body through an injection water incoming pipeline and is injected into the stratum after being connected with an injection water reinjection pipeline through an injection water outlet pipeline; when more than two sets of injected water recovery heat exchange pry blocks are connected in series, the injected water outlet pipeline of the heat exchange pry block box body in the previous set of injected water recovery heat exchange pry block is connected with the injected water inlet pipeline of the heat exchange pry block box body in the next set of injected water recovery heat exchange pry block, and the injected water outlet pipeline of the heat exchange pry block box body in the last set of injected water recovery heat exchange pry block is connected with the injected water reinjection pipeline and then injected into the stratum.
A refrigerant gasification device is further arranged in the heat exchange shell between the heat exchange medium return pipeline and the inlet of the refrigerant coil, and quick connectors are further arranged in the heat carrying medium pipeline and the heat exchange medium return pipeline outside the heat exchange device.
The heat exchange shell is a cylindrical body, and the outside of the cylindrical body is provided with circular heat exchange fins made of titanium alloy.
The heat exchange devices in the heat exchange prying block box body are at least four, and heat-carrying medium pipelines and heat exchange medium return pipelines of the four heat exchange devices are connected in parallel.
And a heat medium pump is also arranged in a heat carrying heat medium pipeline between the heat exchanger and the crude oil heater.
An injected water inlet control valve and an injected water outlet control valve are respectively arranged in an injected water inlet pipeline and an injected water outlet pipeline of the heat exchange pry block box body, the injected water inlet control valve and the injected water outlet control valve are electromagnetic valves and are connected with an electric control module in a well site central control room through cables, and the valve opening degrees of the injected water inlet control valve and the injected water outlet control valve are automatically controlled.
The injection water inlet pipeline is also provided with an injection water temperature transmitter and an injection water metering flowmeter; a refrigerant metering flowmeter is also arranged on the heat exchange medium return pipeline; the output crude oil input pipeline is also provided with a crude oil metering flowmeter, a crude oil temperature transmitter and a crude oil pressure transmitter.
The refrigerant medium compressor is controlled by a frequency conversion device to operate, and the frequency conversion device is connected with an electric control module in a well site central control room.
Compared with the prior art, the invention has the following remarkable using effects: the heat exchange device is arranged in the injected water recovery heat exchange skid block, so that the heat in the reinjection water of the oil field can be efficiently absorbed, the heat efficiency of the heat exchange device is effectively improved, meanwhile, the heat of the reinjection water of the oil field can be recovered according to the on-site requirement, the series connection installation of a plurality of injected water recovery heat exchange skid blocks is realized, and the water quantity of the reinjection water of the oil field is multiplied. The heat exchange device is arranged in the injected water recovery heat exchange skid block through the quick connector, can be conveniently detached, replaced or maintained, and is an energy-saving and environment-friendly device capable of utilizing oilfield reinjection water.
The invention works according to the 'inverse Carnot' principle, the oilfield reinjection water enters the injected water recovery heat exchange skid block through the injected water incoming pipeline and supplies heat to the heat exchange device installed in the injected water recovery heat exchange skid block. The heat exchange device converts the refrigerant medium from liquid state to gas state through the refrigerant gasification device inside, the temperature of the refrigerant medium is reduced, and the refrigerant medium absorbs the heat of the reinjection water of the oil field through the refrigerant coil pipe in the heat exchange device. The cold medium after absorbing heat is transmitted to the heating device through the hot and cold medium pipeline.
The heating device is provided with a refrigerant medium compressor and a heat exchanger, and can compress a refrigerant medium in a heat-carrying refrigerant medium pipeline into a liquid state from a gas state, raise the temperature, send the refrigerant medium with the raised temperature into a refrigerant medium pipeline network in the heat exchanger, and transfer heat to the refrigerant medium outside the refrigerant medium pipeline network. The refrigerant medium after transferring heat is transmitted to the heat exchange device through the refrigerant medium backflow pipeline to form refrigerant medium circulation, and heat is continuously absorbed from the reinjection water of the oil field.
The cooling medium after receiving heat in the heat exchanger is converted into a heat medium, the heat medium is pressurized by a heat medium pump and then is transmitted into the crude oil heater, and the heat is transmitted to the crude oil in the output crude oil coil pipe in the crude oil heater. The heat medium after heat exchange is transmitted to a heating device through a heat medium backflow pipeline to form heat medium circulation, and heat obtained from the cold medium is transmitted to the exported crude oil.
The cold medium circulation and the heat medium circulation form the whole reverse Carnot circulation, and part of heat in the reinjection water of the oil field with lower temperature is extracted to be heated by the output crude oil.
The invention effectively utilizes the associated terrestrial heat in the injection and production process and effectively improves the heat exchange efficiency and the running temperature of the refrigerant medium. Meanwhile, the intelligent integrated operation, unattended automatic frequency conversion adjustment, data remote transmission and remote wireless control can be realized by implementing automatic promotion, so that the intelligent integrated operation system has a remarkable use effect and can obtain remarkable economic benefits.
Drawings
Fig. 1 is a working principle diagram of the present invention.
Fig. 2 is a working principle diagram of the injected water recovery heat exchange skid.
Fig. 3 is a schematic structural diagram of a heat exchange device.
Fig. 4 is a schematic structural view of the heating device.
FIG. 5 is a schematic diagram of a crude oil heater.
Detailed Description
The present invention is described in detail below with reference to the attached drawings, but the present invention is not limited thereto. The following description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention, but also includes other equivalents.
Referring to fig. 1 to 5, in a crude oil export heating system using oil field reinjection water heat energy, in the crude oil export heating system, an injected water recovery heat exchange skid block 3 is provided with a heat exchange device 15 provided with a refrigerant coil 24 and a heating device 19 provided with a refrigerant medium compressor 29 and a heat exchanger 26, the refrigerant coil 24 in the heat exchange device 15 is immersed in a heat conducting medium 21 of a heat exchange shell 22, and a circulation is formed between the refrigerant coil 24 and a refrigerant medium pipe network of the heat exchanger 26 through a heat carrying medium pipeline 16 and a heat exchange medium backflow pipeline 17; the heat exchange device 15 is arranged in the heat exchange prying block box body 13 and is immersed in the oilfield reinjection water 14; the heat exchange medium 27 in the heat exchanger 26 and the heat medium 30 in the crude oil heater 7 are circulated through the heat carrying heat medium pipeline 6 and the heat medium reflux pipeline 5; one end of an output crude oil coil 31 in the crude oil heater 7 is connected with an output crude oil input pipeline 9, and the other end is connected with a crude oil output pipeline 8; the oilfield reinjection water 14 is connected with an injection water inlet pipeline 1 of the heat exchange pry block box body 13 through an injection water incoming pipeline and is injected into the stratum after being connected with an injection water reinjection pipeline through an injection water outlet pipeline 2; when more than two sets of the injected water recovery heat exchange skid blocks 3 are connected in series, the injected water outlet pipeline 2 of the heat exchange skid block box body 13 in the previous set of the injected water recovery heat exchange skid blocks 3 is connected with the injected water inlet pipeline 1 of the heat exchange skid block box body 13 in the next set of the injected water recovery heat exchange skid blocks 3, and the injected water outlet pipeline 2 of the heat exchange skid block box body 13 in the last set of the injected water recovery heat exchange skid blocks 3 is connected with the injected water reinjection pipeline and then injected into the stratum. According to the treatment capacity of oilfield reinjection water 14, a set of injected water recovery heat exchange skid blocks 3 or more than two sets of injected water recovery heat exchange skid blocks 3 are installed in series to provide heat energy for a crude oil heater 7.
On the basis of the first embodiment, the invention also has the following embodiments:
example two
A refrigerant gasification device 23 is further installed in the heat exchange shell 22 between the heat exchange medium return line 17 and the inlet of the refrigerant coil 24, and quick connectors are further installed in the heat carrying medium pipeline 16 and the heat exchange medium return line 17 outside the heat exchange device 15.
EXAMPLE III
The heat exchange shell 22 is a cylindrical body, and the cylindrical body is externally provided with circular heat exchange fins 25 made of titanium alloy. The heat exchange device 15 is immersed in the oilfield reinjection water 14, is externally provided with heat exchange fins 25, and is internally filled with a heat conducting medium 21. The heat transfer medium 27 flows into the heat transfer device 15 through the heat transfer medium return line 17, and is converted from a liquid state to a gas state through the refrigerant gasification device 23, the temperature of the heat transfer medium 27 is reduced, the heat transfer medium flows through the refrigerant coil 24, and the heat in the oilfield reinjection water 14 is absorbed through the heat transfer medium 21 and the heat transfer fins 25. The heat exchange medium 27 having absorbed heat is conducted to the heating device 19 via the heat transfer medium line 16.
Example four
At least four heat exchange devices 15 are arranged in the heat exchange pry block box body 13, and heat-carrying medium pipelines 16 and heat exchange medium return pipelines 17 of the four heat exchange devices 15 are connected in parallel. The heat exchange devices 15 are arranged in the heat exchange pry block box body 13 and are connected with the heat exchange medium return pipeline 17 and the heat carrying medium pipeline 16 through quick connectors, and the number of the arranged heat exchange devices 15 can be adjusted according to the treatment capacity of the oilfield reinjection water 14.
EXAMPLE five
A heat transfer medium pump 4 is also arranged in the heat transfer medium pipeline 6 between the heat exchanger 26 and the crude oil heater 7. The heating device 19 mainly comprises a refrigerant medium compressor 29 and a heat exchanger 26, a heat exchange medium 27 is introduced into the heating device 19 through a heat carrying medium pipeline 16, the refrigerant medium in the heat carrying medium pipeline 16 is compressed by the refrigerant medium compressor 29, the temperature rises, and the refrigerant medium enters a refrigerant medium pipeline network of the heat exchanger 26 and exchanges heat with the heat exchange medium 27 outside. The cold medium after heat exchange in the cold medium pipe network is transmitted to the heat exchange device 15 through the heat exchange medium backflow pipeline 17 to form cold medium circulation.
EXAMPLE six
An injected water inlet control valve 10 and an injected water outlet control valve 20 are respectively installed in an injected water inlet pipeline 1 and an injected water outlet pipeline 2 of the heat exchange pry block box body 13, the injected water inlet control valve 10 and the injected water outlet control valve 20 are electromagnetic valves and are connected with an electrical control module in a well site central control room through cables, and the valve opening degrees of the injected water inlet control valve 10 and the injected water outlet control valve 20 are automatically controlled. The oilfield reinjection water 14 is controlled by an injection water inlet valve 10, enters the heat exchange pry block box body 13 through an injection water inlet pipeline 1, is controlled by an injection water outlet valve 20, and flows out through an injection water outlet pipeline 2. The injection water inlet valve 10 can adjust the flow rate of the oilfield reinjection water 14 entering the heat exchange pry box body 13 according to requirements.
The heat exchange medium 27 absorbing heat outside the cold medium pipe network in the heat exchanger 26 of the heating device 19 is converted into a heat medium 30, and is transmitted into the crude oil heater 7 through the heat carrying heat medium pipeline 6, the crude oil heater 7 is internally filled with the heat medium 30 and is soaked outside the external crude oil coil 31, and the heat of the heat medium 30 is transmitted to the external crude oil. After exchanging heat with the external crude oil, the heat medium is sent to the heat exchanger 26 of the heating device 19 through the heat medium backflow pipeline 5 to form heat medium circulation. The export crude oil flows through an export crude oil coil 31 in the crude oil heater 7 from an export crude oil input pipeline 9, absorbs heat and then is output through an export crude oil output pipeline 8.
EXAMPLE seven
The injection water inlet pipeline 1 is also provided with an injection water temperature transmitter 11 and an injection water metering flowmeter 12; a refrigerant metering flowmeter 18 is also arranged on the heat exchange medium return pipeline 17; the output crude oil input pipeline 9 is also provided with a crude oil metering flowmeter 32, a crude oil temperature transmitter 33 and a crude oil pressure transmitter 34, and the components are connected with an electric control module in a well site central control room through data lines, so that data remote transmission and wireless control are realized. The electrical control module calculates the energy required by heating the crude oil through the metering flowmeter 32 of the exported crude oil and the temperature transmitter 33 of the exported crude oil; the energy which can be supplied by the oilfield reinjection water 14 is calculated through the injected water temperature transmitter 11 and the injected water metering flowmeter 12, and the flow rate of the oilfield reinjection water 14 is adjusted through adjusting the injected water inlet control valve 10.
Example eight
The operation of the refrigerant medium compressor 29 is controlled by the frequency conversion device 28, the frequency conversion device 28 is connected with an electric control module in a well site central control room, and the operation parameters of the refrigerant medium compressor 29 are collected and the operation frequency of the refrigerant medium compressor is controlled. The electric control module is used for outputting energy required by heating crude oil and supplying energy to oilfield reinjection water 14 according to the invention, adjusting the output frequency of the frequency conversion device 28, controlling the operation of a refrigerant medium compressor 29, and a refrigerant metering flowmeter 18 is arranged in the heat exchange medium backflow pipeline 17 and used for metering the flow of the refrigerant medium therein.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Many variations, combinations, and modifications of the aspects disclosed herein are possible and are within the scope of the invention, which is, therefore, not to be limited by the above description.

Claims (8)

1. A crude oil outward transportation heating system utilizing oil field reinjection water thermal energy is characterized in that in the crude oil outward transportation heating system, an injected water recovery heat exchange skid block (3) is provided with a heat exchange device (15) provided with a refrigerant coil (24) and a heating device (19) provided with a refrigerant medium compressor (29) and a heat exchanger (26), the refrigerant coil (24) in the heat exchange device (15) is immersed in a heat conducting medium (21) of a heat exchange shell (22), and a circulation is formed between the refrigerant coil (24) and a refrigerant medium pipe network of the heat exchanger (26) through a heat carrying medium pipeline (16) and a heat exchange medium backflow pipeline (17); the heat exchange device (15) is arranged in a heat exchange prying block box body (13) and is immersed in oilfield reinjection water (14); the heat exchange medium (27) in the heat exchanger (26) and the heat medium (30) in the crude oil heater (7) are circulated through a heat carrying heat medium pipeline (6) and a heat medium reflux pipeline (5); one end of an external crude oil output coil pipe (31) in the crude oil heater (7) is connected with an external crude oil output pipeline (9), and the other end of the external crude oil output coil pipe is connected with a crude oil output pipeline (8); the oilfield reinjection water (14) is connected with an injection water inlet pipeline (1) of the heat exchange pry block box body (13) through an injection water incoming pipeline and is injected into the stratum after being connected with an injection water reinjection pipeline through an injection water outlet pipeline (2); when more than two sets of injected water recovery heat exchange skid blocks (3) are connected in series, an injected water outlet pipeline (2) of a heat exchange skid block box body (13) in the previous set of injected water recovery heat exchange skid block (3) is connected with an injected water inlet pipeline (1) of the heat exchange skid block box body (13) in the next set of injected water recovery heat exchange skid block (3), and an injected water outlet pipeline (2) of the heat exchange skid block box body (13) in the last set of injected water recovery heat exchange skid block (3) is connected with an injected water reinjection pipeline and then injected into the stratum.
2. The crude oil outward heating system utilizing the heat energy of the oilfield reinjection water according to claim 1, wherein a refrigerant gasification device (23) is further installed in the heat exchange shell (22) between the heat exchange medium return line (17) and the inlet of the refrigerant coil (24), and quick connectors are further installed in the heat carrying medium line (16) and the heat exchange medium return line (17) outside the heat exchange device (15).
3. The crude oil outward transportation heating system utilizing the heat energy of the oilfield reinjection water as claimed in claim 2, wherein the heat exchange shell (22) is a cylinder, and the outside of the cylinder is provided with circular ring-shaped heat exchange fins (25) made of titanium alloy.
4. The crude oil outward transportation heating system utilizing the heat energy of the oilfield reinjection water according to the claim 1, the claim 2 or the claim 3, characterized in that at least four heat exchange devices (15) are arranged in the heat exchange pry block box body (13), and the heat carrier medium pipelines (16) and the heat exchange medium return pipelines (17) of the four heat exchange devices (15) are connected in parallel.
5. The crude oil export heating system using oilfield reinjection water thermal energy as claimed in claim 1, wherein a heat medium pump (4) is further installed in the heat medium pipeline (6) between the heat exchanger (26) and the crude oil heater (7).
6. The crude oil outward transportation heating system utilizing the heat energy of the oilfield reinjection water according to claim 4, wherein an injected water inlet control valve (10) and an injected water outlet control valve (20) are respectively installed in the injected water inlet pipeline (1) and the injected water outlet pipeline (2) of the heat exchange pry block box body (13), the injected water inlet control valve (10) and the injected water outlet control valve (20) are electromagnetic valves and are connected with an electrical control module in a well site central control room through cables, and the valve opening degrees of the injected water inlet control valve (10) and the injected water outlet control valve (20) are automatically controlled.
7. The crude oil export heating system utilizing the heat energy of the oilfield reinjection water as set forth in claim 6, wherein the injection water inlet pipeline (1) is further provided with an injection water temperature transmitter (11) and an injection water metering flowmeter (12); a refrigerant metering flowmeter (18) is also arranged on the heat exchange medium return pipeline (17); the output crude oil input pipeline (9) is also provided with a crude oil metering flowmeter (32), a crude oil temperature transmitter (33) and a crude oil pressure transmitter (34).
8. The crude oil export heating system utilizing oil field reinjection water thermal energy according to claim 1, characterized in that the cold medium compressor (29) is controlled by a frequency conversion device (28), and the frequency conversion device (28) is connected with an electrical control module in a well site central control room.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250371B1 (en) * 1995-09-12 2001-06-26 Enlink Geoenergy Services, Inc. Energy transfer systems
CN102635523A (en) * 2010-09-10 2012-08-15 刘国利 Freezing point indirect evaporation cooling type natural low-phase energy engine taking water as raw material
CN103075805A (en) * 2013-02-01 2013-05-01 胜利油田胜利勘察设计研究院有限公司 System for heating crude oil under joint action of heat pump for recovering oil field sewage residual heat and water jacket furnace
CN104964484A (en) * 2015-08-01 2015-10-07 山东东德石油装备有限公司 Multifunctional heating device of oil field double-source heat pump
WO2018004351A1 (en) * 2016-07-01 2018-01-04 Kanfa Ingenium Process As System adapted for heating a mixed hydrocarbon stream and a method for heating a mixed hydrocarbon stream
CN108826746A (en) * 2018-08-08 2018-11-16 廖滨 The big temperature difference heat pump heat-storing device of high temperature and heat-storing method
CN208170747U (en) * 2018-05-16 2018-11-30 浙江正理生能科技有限公司 A kind of air source heat pump for heating crude oil
CN109405288A (en) * 2017-08-17 2019-03-01 中国石油化工股份有限公司 Oil field waste heat of flue gas of heating furnace recyclable device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250371B1 (en) * 1995-09-12 2001-06-26 Enlink Geoenergy Services, Inc. Energy transfer systems
CN102635523A (en) * 2010-09-10 2012-08-15 刘国利 Freezing point indirect evaporation cooling type natural low-phase energy engine taking water as raw material
CN103075805A (en) * 2013-02-01 2013-05-01 胜利油田胜利勘察设计研究院有限公司 System for heating crude oil under joint action of heat pump for recovering oil field sewage residual heat and water jacket furnace
CN104964484A (en) * 2015-08-01 2015-10-07 山东东德石油装备有限公司 Multifunctional heating device of oil field double-source heat pump
WO2018004351A1 (en) * 2016-07-01 2018-01-04 Kanfa Ingenium Process As System adapted for heating a mixed hydrocarbon stream and a method for heating a mixed hydrocarbon stream
CN109405288A (en) * 2017-08-17 2019-03-01 中国石油化工股份有限公司 Oil field waste heat of flue gas of heating furnace recyclable device
CN208170747U (en) * 2018-05-16 2018-11-30 浙江正理生能科技有限公司 A kind of air source heat pump for heating crude oil
CN108826746A (en) * 2018-08-08 2018-11-16 廖滨 The big temperature difference heat pump heat-storing device of high temperature and heat-storing method

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