CN116006128B - Paraffin preventing device for well bore of oil extraction well heated by solar energy - Google Patents
Paraffin preventing device for well bore of oil extraction well heated by solar energy Download PDFInfo
- Publication number
- CN116006128B CN116006128B CN202310006414.4A CN202310006414A CN116006128B CN 116006128 B CN116006128 B CN 116006128B CN 202310006414 A CN202310006414 A CN 202310006414A CN 116006128 B CN116006128 B CN 116006128B
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- heat
- solar
- heat exchanger
- pipeline
- control system
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- 239000012188 paraffin wax Substances 0.000 title claims description 7
- 238000000605 extraction Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000005338 heat storage Methods 0.000 claims abstract description 26
- 230000008021 deposition Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 18
- 239000003129 oil well Substances 0.000 claims description 14
- 239000001993 wax Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000006386 neutralization reaction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The application discloses a wax deposition preventing device for a shaft of an oil extraction well heated by solar energy, which belongs to the technical field of solar energy engineering and comprises the following components: the solar heat collector comprises a solar heat collector, a heat storage water tank, an auxiliary heat source and a control system, wherein the auxiliary heat source is communicated with the heat storage water tank through a pipeline, a first heat exchanger and a second heat exchanger are arranged in the heat storage water tank, the first heat exchanger is communicated with the solar heat collector through a pipeline, the second heat exchanger is communicated with a water mixing loop line and an oil extraction well through a pipeline, and the control system is electrically connected with the solar heat collector and the auxiliary heat source through a pipeline. According to the application, the heat conducting medium is heated by the solar heat collector, the heat conducting medium is used for replacing heat into the heat storage water tank by the first circulating pump and the first heat exchanger, and water in the water mixing loop line is conveyed to the underground after being heated by the second heat exchanger, so that the purposes of preventing wax deposition at the wellhead, saving energy and reducing emission are achieved, and positive contribution is made to early realization of the aims of carbon neutralization and carbon peak reaching.
Description
Technical Field
The application belongs to the technical field of solar engineering, and particularly relates to an oil extraction well shaft wax deposition preventing device heated by solar energy.
Background
The phenomenon of wax deposition in oil wells is common in the development process of oil fields, and the depth of the oil well is generally more than 1 km, and some of the oil wells are even 4-5 km. Under oil layer conditions, it is generally in a dissolved state. In the production process, when the temperature of an oil layer near the bottom of a well is low or the temperature of the oil layer is reduced to a wax precipitation temperature due to water injection, wax is precipitated near the bottom of the well or in the oil layer.
Most oil wells currently use electrical heating to prevent wax precipitation and chemical paraffin removal. The electric heating wax deposition preventing technology is to utilize hollow sucker rod, upper and lower heating cable in the middle and heating device to heat and dewater oil well. The method has good effect, but has complex process, high disposable investment and large electric energy consumption in the later period. Chemical paraffin removal is to utilize different chemical agents to react and release heat after being injected into a shaft so as to remove paraffin deposition in an oil well. This approach has applications but is not so much, and the effect is affected by many factors. Therefore, a clean energy-saving device is required to be provided to achieve the aims of preventing wax deposition, reducing consumption and conveying, so as to achieve the aims of energy conservation and emission reduction.
Disclosure of Invention
The application aims to provide a solar heating oil well shaft wax deposition preventing device for an oil well, which solves the defects in the prior art.
In order to achieve the aim of the application, the application adopts the following technical scheme:
a solar heated oil well bore wax deposition preventing device comprising: the solar heat collector comprises a solar heat collector, a heat storage water tank, an auxiliary heat source and a control system, wherein the auxiliary heat source is communicated with the heat storage water tank through a pipeline, a first heat exchanger and a second heat exchanger are arranged in the heat storage water tank, the first heat exchanger is communicated with the solar heat collector through a pipeline, the second heat exchanger is communicated with a water mixing loop line and an oil extraction well through a pipeline, and the control system is electrically connected with the solar heat collector and the auxiliary heat source through a pipeline.
Preferably, each pipeline is provided with a temperature transmitter, and the output end of the temperature transmitter is electrically connected with the input end of the control system.
Preferably, a first circulating pump and a first flowmeter are arranged on a liquid return pipeline between the solar heat collector and the first heat exchanger, and the first circulating pump and the first flowmeter are electrically connected with the control system.
Preferably, a second circulating pump is arranged on a liquid return pipeline between the auxiliary heat source and the heat storage water tank, and the second circulating pump is electrically connected with the control system.
Preferably, an electric valve and a second flowmeter are arranged on a pipeline between the water mixing loop line and the second heat exchanger, and the electric valve and the second flowmeter are electrically connected with the control system.
Preferably, the auxiliary heat source adopts any one of electric heating, an air source heat pump or a water source heat pump.
Preferably, a temperature liquid sensor is arranged in the heat storage water tank, and the output end of the temperature liquid sensor is electrically connected with the input end of the control system.
Compared with the prior art, the paraffin preventing device for the oil well shaft by utilizing solar heating has the following advantages:
according to the application, the heat conducting medium is heated by the solar heat collector, the heat conducting medium is used for replacing heat into the heat storage water tank by the first circulating pump and the first heat exchanger, and water in the water mixing loop line is conveyed to the underground after being heated by the second heat exchanger, so that the purposes of preventing wax deposition at the wellhead, saving energy and reducing emission are achieved, and positive contribution is made to early realization of the aims of carbon neutralization and carbon peak reaching.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present application.
In the figure: 1-solar heat collector, 2-control system, 3-first flowmeter, 4-first circulating pump, 5-temperature transmitter, 6-heat storage water tank, 7-first heat exchanger, 8-second heat exchanger, 9-temperature liquid sensor, 10-second circulating pump, 11-second flowmeter, 12-motorised valve, 13-auxiliary heat source.
Detailed Description
The technical scheme of the application is further described below with reference to the accompanying drawings and examples:
referring to fig. 1, the application provides a solar heating oil well shaft wax deposition preventing device, comprising: the solar heat collector comprises a solar heat collector 1, a heat storage water tank 6, an auxiliary heat source 13 and a control system 2, wherein the auxiliary heat source 13 is communicated with the heat storage water tank 6 through a pipeline, a first heat exchanger 7 and a second heat exchanger 8 are arranged inside the heat storage water tank 6, the first heat exchanger 7 is communicated with the solar heat collector 1 through a pipeline, the second heat exchanger 8 is communicated with a water mixing loop line and an oil extraction well through a pipeline, and the control system 2 is electrically connected with the solar heat collector 1 and the auxiliary heat source 13 through a pipeline. The solar collector 1 is preferably a double-shaft trough solar collector.
As a preferred embodiment, a temperature transmitter 5 is provided in each line, the output of the temperature transmitter 5 being electrically connected to the input of the control system 2. Specifically, the temperature transmitter 5 is disposed on the liquid inlet and outlet pipelines of the first heat exchanger 7, so that the heat exchange condition between the first heat exchanger 7 and the heat storage water tank 6 can be monitored, and similarly, the temperature transmitter 5 is also disposed on the liquid inlet and outlet pipelines of the second heat exchanger 8 and the liquid inlet and outlet pipelines of the auxiliary heat source 13, so that the heat exchange condition between the second heat exchanger 8 and the heat storage water tank 6 and the heat exchange condition between the auxiliary heat source 13 and the heat storage water tank 6 can be monitored respectively, thereby better regulating and controlling the working state of the equipment, and ensuring the implementation efficiency of preventing wax deposition of the oil well.
As a preferred embodiment, a first circulating pump 4 and a first flowmeter 3 are arranged on a liquid return pipeline between the solar heat collector 1 and the first heat exchanger 7, and the first circulating pump 4 and the first flowmeter 3 are electrically connected with the control system 2. The heat conducting medium is used for replacing heat into the heat storage water tank 6 through the first circulating pump 4 and the first heat exchanger 7, the flow of the solar heat collector 1 is transmitted to the control system 2 through the first flow meter 3, the flow rate of the heat conducting medium in the first heat exchanger 7 is controlled through the numerical value fed back by the first flow meter 3, and then the heat exchange efficiency between the first heat exchanger 7 and the heat storage water tank 6 is regulated and controlled.
As a preferred embodiment, a second circulation pump 10 is disposed on the liquid return line between the auxiliary heat source 13 and the hot water storage tank 6, and the second circulation pump 10 is electrically connected to the control system 2. When the solar energy is insufficient in severe weather, the second circulating pump 10 is started, and the auxiliary heat source 13 is started to maintain the temperature in the hot water storage tank 6 so as to ensure normal production.
As a preferred embodiment, an electric valve 12 and a second flowmeter 11 are arranged on the pipeline between the water mixing loop and the second heat exchanger 8, and the electric valve 12 and the second flowmeter 11 are electrically connected with the control system 2. The control system 2 monitors the oil temperature of the inlet ring in real time, and when the oil temperature is larger than a set value, the electric valve 12 is closed to stop injecting high-temperature water into the shaft. The next stage of metering is provided by the second flowmeter 11.
As a preferred embodiment, the auxiliary heat source 13 may be electric heating, air source heat pump, water source heat pump, or the like.
As a preferred embodiment, a temperature-liquid sensor 9 is disposed in the hot water storage tank 6, and an output end of the temperature-liquid sensor 9 is electrically connected with an input end of the control system 2.
The working principle of the application is as follows:
the double-shaft groove type solar heat collector is used for collecting solar energy to heat a heat conducting medium, the heat conducting medium is used for replacing heat into the heat storage water tank through the first circulating pump and the first heat exchanger, and water in the water mixing loop is conveyed to the underground after being heated through the second heat exchanger, so that crude oil waxing is prevented. The control system monitors the oil temperature of the inlet ring in real time, and when the oil temperature is larger than a set value, the electric valve is closed, and the injection of high-temperature water into the shaft is stopped. The second flowmeter provides basis for the next stage of metering. When the solar energy is insufficient in severe weather, the second circulating pump is started, and the auxiliary heat source is started to maintain the temperature in the heat storage water tank so as to ensure normal production.
The control system 2 adopts intelligent energy management and control, and is controlled by the field station and the remote monitoring station in a secondary mode, and the temperature, the flow, the liquid level and the like are monitored in real time. The temperature of the pipeline is transmitted to the control system 2 through the temperature transmitter 5; the flow of the solar heat collector 1 is transmitted to the control system 2 through the first flowmeter 3; the flow of the water mixing system is transmitted to the control system 2 through the second flowmeter 11; the temperature and the liquid level of the heat storage water tank 6 are transmitted to the control system 2 through a temperature liquid sensor 9. The intelligent management such as unattended operation, remote operation and maintenance, fault early warning and the like of the system is realized.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A solar heating oil well bore wax deposition preventing device, comprising: the solar heat collector (1), the heat storage water tank (6), the auxiliary heat source (13) and the control system (2), the auxiliary heat source (13) is communicated with the heat storage water tank (6) through a pipeline, a first heat exchanger (7) and a second heat exchanger (8) are arranged in the heat storage water tank (6), the first heat exchanger (7) is communicated with the solar heat collector (1) through a pipeline, the second heat exchanger (8) is communicated with a water mixing loop line and an oil recovery well through a pipeline, water in the water mixing loop line is conveyed underground after being warmed by the second heat exchanger, the control system (2) is electrically connected with the solar heat collector (1) and the auxiliary heat source (13) through a pipeline, a first circulating pump (4) and a first flowmeter (3) are arranged on a liquid return pipeline between the solar heat collector (1) and the first heat exchanger (7), the first circulating pump (4) and the first flowmeter (3) are electrically connected with the control system (2), water in the water mixing loop line (13) is electrically connected with an electric circulating pump (10) and a second flowmeter (10) arranged on the second circulating pump (8), the electric valve (12) and the second flowmeter (11) are electrically connected with the control system (2), a temperature transmitter (5) is arranged in each pipeline, and the output end of the temperature transmitter (5) is electrically connected with the input end of the control system (2).
2. The device for preventing wax deposition in the well bore of the oil recovery well by utilizing solar energy according to claim 1, wherein the auxiliary heat source (13) adopts any one of electric heating, an air source heat pump or a water source heat pump.
3. The solar heating oil well shaft paraffin preventing device according to claim 1, wherein a temperature liquid sensor (9) is arranged in the heat storage water tank (6), and the output end of the temperature liquid sensor (9) is electrically connected with the input end of the control system (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310006414.4A CN116006128B (en) | 2023-01-04 | 2023-01-04 | Paraffin preventing device for well bore of oil extraction well heated by solar energy |
| PCT/CN2023/077527 WO2024145982A1 (en) | 2023-01-04 | 2023-02-22 | Oil well shaft paraffin deposition-resistant apparatus using solar heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310006414.4A CN116006128B (en) | 2023-01-04 | 2023-01-04 | Paraffin preventing device for well bore of oil extraction well heated by solar energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116006128A CN116006128A (en) | 2023-04-25 |
| CN116006128B true CN116006128B (en) | 2023-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310006414.4A Active CN116006128B (en) | 2023-01-04 | 2023-01-04 | Paraffin preventing device for well bore of oil extraction well heated by solar energy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116006128B (en) |
| WO (1) | WO2024145982A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118623493A (en) * | 2024-07-02 | 2024-09-10 | 河北瑞丁自动化设备有限公司 | A solar thermal collection system and operation method |
| CN118757688B (en) * | 2024-09-05 | 2025-03-28 | 河北华北石油荣盛机械制造有限公司 | Oilfield blending system |
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| CN201412120Y (en) * | 2009-05-25 | 2010-02-24 | 天津市运坤工贸有限公司 | Solar power warming system for oil field wellhead |
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| CN209445488U (en) * | 2019-01-31 | 2019-09-27 | 河北道荣新能源科技有限公司 | Heating system based on CPC solar collector |
| CN111473531A (en) * | 2020-05-13 | 2020-07-31 | 森诺科技有限公司 | Skid-mounted oil field well site light and heat circulation heating device |
| CN114459163A (en) * | 2022-02-15 | 2022-05-10 | 葛仁君 | Solar double-water-tank heat supply system |
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| US7677317B2 (en) * | 2006-12-18 | 2010-03-16 | Conocophillips Company | Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation |
| CN101294483A (en) * | 2008-06-27 | 2008-10-29 | 娄志怀 | Self-washing wax-clearing method for electric heating oil well |
| CN101629481A (en) * | 2009-07-30 | 2010-01-20 | 程伟民 | Oil well anti-scaling paraffin precipitation device |
| US11767753B2 (en) * | 2018-12-04 | 2023-09-26 | ExxonMobil Technology and Engineering Company | Method for flow profiling using transient active-source heating or cooling and temperature profiling |
| CN216591930U (en) * | 2021-12-30 | 2022-05-24 | 山东三齐能源有限公司 | Multi-energy complementary heating system |
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2023
- 2023-01-04 CN CN202310006414.4A patent/CN116006128B/en active Active
- 2023-02-22 WO PCT/CN2023/077527 patent/WO2024145982A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412120Y (en) * | 2009-05-25 | 2010-02-24 | 天津市运坤工贸有限公司 | Solar power warming system for oil field wellhead |
| JP2011149662A (en) * | 2010-01-25 | 2011-08-04 | Rinnai Corp | Storage type hot water supply system utilizing solar heat |
| CN201794572U (en) * | 2010-07-23 | 2011-04-13 | 天津市润泓达管件制造有限公司 | Solar high-temperature heat pump heating device for oil production system |
| CN104420850A (en) * | 2013-09-11 | 2015-03-18 | 中国石油天然气股份有限公司 | Well site crude oil heating device, heating system and heating control method |
| CN209445488U (en) * | 2019-01-31 | 2019-09-27 | 河北道荣新能源科技有限公司 | Heating system based on CPC solar collector |
| CN111473531A (en) * | 2020-05-13 | 2020-07-31 | 森诺科技有限公司 | Skid-mounted oil field well site light and heat circulation heating device |
| CN114459163A (en) * | 2022-02-15 | 2022-05-10 | 葛仁君 | Solar double-water-tank heat supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116006128A (en) | 2023-04-25 |
| WO2024145982A1 (en) | 2024-07-11 |
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