CN111075411A - Intelligent water injection instrument for oil field - Google Patents
Intelligent water injection instrument for oil field Download PDFInfo
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- CN111075411A CN111075411A CN201911400131.8A CN201911400131A CN111075411A CN 111075411 A CN111075411 A CN 111075411A CN 201911400131 A CN201911400131 A CN 201911400131A CN 111075411 A CN111075411 A CN 111075411A
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- Prior art keywords
- temperature
- water injection
- insulation layer
- heat insulation
- controller
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/04—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
Abstract
The application provides an intelligent water injection instrument for an oil field, which comprises a water injection instrument main body, wherein a heat insulation layer is arranged on the periphery of the water injection instrument main body; a first temperature detector is arranged on the water injection instrument main body and positioned on the outer side of the heat insulation layer, and a second temperature detector is arranged on the water injection instrument main body and positioned on the inner side of the heat insulation layer; a water injector controller, a temperature controller assembly and a first heater are further arranged on the water injector main body in the heat insulation layer, and the first temperature detector, the second temperature detector, the water injector controller, the temperature controller assembly and the first heater are mutually connected; the environment temperature of the inside and the outside of the heat preservation layer is detected through the first temperature detector and the second temperature detector, the temperature data are sent to the water injector controller and the temperature controller assembly, the first heater is controlled to work through the water injector controller and the temperature controller assembly, the environment temperature inside the heat preservation layer is increased, and the problem that the existing intelligent water injection instrument for the oil field cannot operate at a low temperature is solved.
Description
Technical Field
The application relates to the technical field of oil field water injection, in particular to an intelligent water injection instrument for an oil field.
Background
The process of injecting water into an oil formation using a water injection well to supplement and maintain the pressure in the formation is known as water injection. After the oil field is put into development, the energy of the oil layer is continuously consumed along with the increase of the exploitation time, so that the pressure of the oil layer is continuously reduced, underground crude oil is greatly degassed, the viscosity is increased, the yield of the oil well is greatly reduced, even the injection and production stop can be realized, and a large amount of underground residual dead oil cannot be extracted. In order to make up for the underground deficit caused by the production of crude oil, maintain or improve the pressure of an oil layer, realize high and stable yield of an oil field and obtain higher recovery ratio, the oil field needs to be injected with water, and an intelligent water injector is a common device applied to the water injection procedure of the oil field at present.
The intelligent water injector applied to the oilfield water injection site at present mainly comprises an integral structure formed by combining flow measurement and automatic control regulation, and meanwhile, the intelligent water injector is supplemented with functions of remote communication and the like, so that the structure greatly optimizes the structure of a flow meter and a manual control valve which are used in the oilfield water injection site in the past, the site labor force is fully liberated, and the production efficiency is improved and is approved by site users.
However, the intelligent water injector has the defects in the field use process. In areas with low temperature in winter such as Xinjiang, inner Mongolia and northeast China, the field temperature is often below-20 ℃, the lowest temperature is at or near-40 ℃, under such an environment, the existing product or device structure can only work within-20 ℃, and when the temperature is low, the defects of incapability of normal metering, abnormal display, control and communication of liquid crystals and the like occur, so that the use requirement under a lower temperature environment cannot be met.
Disclosure of Invention
The application provides an intelligent water injection instrument is used in oil field to solve the lower oil field water injection process of site environment temperature, because the temperature is low excessively, the unable defect of normal work of the water injector that leads to can't satisfy the problem of operation requirement under the lower temperature environment.
The technical scheme adopted by the application for solving the technical problems is as follows:
an intelligent water injection instrument for an oil field comprises a water injection instrument main body, wherein a heat-insulating layer is arranged on the periphery of the water injection instrument main body;
a first temperature detector is arranged on the water injection instrument main body and positioned on the outer side of the heat insulation layer, and a second temperature detector is arranged on the water injection instrument main body and positioned on the inner side of the heat insulation layer;
a water injector controller, a temperature controller assembly and a first heater are further arranged on the water injector main body in the heat insulation layer, and the first temperature detector, the second temperature detector, the water injector controller, the temperature controller assembly and the first heater are mutually connected;
the heat insulation layer is used for keeping the temperature of the environment where the water injection instrument main body is located in the heat insulation layer and reducing the attenuation amplitude of the temperature in the heat insulation layer;
the first temperature detector is used for detecting the temperature of the external environment of the heat insulation layer and sending the detected temperature data of the external environment to the water injector controller and the temperature controller assembly;
the first temperature detector is used for detecting the temperature of the internal environment of the heat insulation layer and sending the detected temperature data of the internal environment to the water injector controller and the temperature controller assembly;
the water injector controller and temperature controller assembly is used for receiving detection data of the internal and external environments of the heat insulation layer, comparing preset temperature data with the detection data of the internal and external environments, and sending an opening or closing instruction to the first heater according to the comparison result;
and the first heater is used for being switched on or switched off according to the instruction.
Optionally, the water injector controller comprises a metering sensor, a control valve, a control motor, a connecting pipeline and a mounting flange which are arranged on the water injector main body.
Optionally, a third temperature detector and an infrared heating device are further arranged on the water injector controller and the temperature controller assembly;
the third temperature detector and the infrared heating device are integrated on a control circuit board in the water injector controller and the temperature controller assembly and are controlled by a single chip on the water injector controller in the water injector controller and the temperature controller assembly;
the third temperature detector is used for detecting the internal environment temperature of the heat insulation layer and sending the detected data to the single-chip microcomputer;
the single-machine sheet is used for receiving the internal environment temperature of the heat insulation layer, comparing preset temperature data with the internal environment temperature data, and sending an opening or closing instruction to the infrared heating device according to the comparison result;
and the infrared heating device is used for being turned on or turned off according to the instruction.
Optionally, a high-pressure filtering device is arranged on the water inlet pipeline of the water injection instrument main body;
and a high-pressure one-way valve is arranged on the water outlet pipeline of the water injection instrument main body.
Optionally, the injector controller and the temperature controller assembly are further connected with a remote terminal device through a communication module.
Optionally, the first heater is a temperature adjustable heater.
The technical scheme provided by the application comprises the following beneficial technical effects:
the application provides an intelligent water injection instrument for an oil field, which comprises a water injection instrument main body, wherein a heat insulation layer is arranged on the periphery of the water injection instrument main body; a first temperature detector is arranged on the water injection instrument main body and positioned on the outer side of the heat insulation layer, and a second temperature detector is arranged on the water injection instrument main body and positioned on the inner side of the heat insulation layer; a water injector controller, a temperature controller assembly and a first heater are further arranged on the water injector main body in the heat insulation layer, and the first temperature detector, the second temperature detector, the water injector controller, the temperature controller assembly and the first heater are mutually connected; detect the ambient temperature of heat preservation inside and outside through first thermodetector and second thermodetector, and with temperature data transmission to water injector controller and temperature controller subassembly, through the work of the first heater of water injector controller and temperature controller subassembly control, thereby make the inside ambient temperature of heat preservation rise, in having solved the lower oil field water injection process of site environment temperature, because the temperature is low excessively, the unable normal defect of working of water injector that leads to, can't satisfy the problem of operation requirement under the lower temperature environment.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic structural diagram of an intelligent water flooding instrument for an oil field according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a high pressure filtration apparatus provided in an embodiment of the present application;
fig. 3 is a schematic structural view of a high-pressure check valve provided in an embodiment of the present application.
Description of reference numerals:
the water injection device comprises a water injection instrument main body, a first temperature detector, a second temperature detector, a water injector controller and temperature controller component, a heat insulation layer, a water inlet pipe, a water outlet pipe, a high-pressure filtering device and a high-pressure check valve, wherein the water injection instrument main body is 21, the first temperature detector is 22, the second temperature detector is 3, the water injector controller and temperature controller component is 4, the heat insulation layer is 5, the water inlet pipe is 6, the first heater is.
Detailed Description
In order to make the technical solutions in the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural view of an intelligent water injection instrument for an oil field according to an embodiment of the present disclosure, and as shown in the drawing, the intelligent water injection instrument for an oil field according to the embodiment of the present disclosure includes a water injection instrument main body 1 having an insulating layer 4 disposed on a periphery thereof;
a first temperature detector 21 is arranged on the water injection instrument main body 1 and positioned on the outer side of the heat insulation layer 4, and a second temperature detector 22 is arranged on the water injection instrument main body 1 and positioned on the inner side of the heat insulation layer 4;
a water injector controller and temperature controller assembly 3 and a first heater 6 are also arranged on the water injector main body 1 in the heat-insulating layer 4, and the first temperature detector 21, the second temperature detector 22, the water injector controller and temperature controller assembly 3 and the first heater 6 are connected with each other; wherein, the water injector controller and temperature controller subassembly 3 is integrated including the measurement controller and the temperature controller two parts of water injector at least, and first temperature detector 21 and second temperature detector 22 adopt threaded connection on water injector main part 1.
Meanwhile, the heat-insulating layer 4 is used for maintaining the temperature of the environment where the water injection instrument main body 1 is located inside the heat-insulating layer 4 and reducing the attenuation amplitude of the temperature inside the heat-insulating layer 4;
the first temperature detector 21 is configured to detect an external environment temperature of the heat insulation layer 4, and send detected temperature data of the external environment to the injector controller and temperature controller assembly 3;
the first temperature detector 21 is configured to detect an internal environment temperature of the heat insulation layer 4, and send detected temperature data of the internal environment to the injector controller and temperature controller assembly 3;
the water injector controller and temperature controller assembly 3 is used for receiving detection data of the internal and external environments of the heat preservation layer 4, comparing preset temperature data with the detection data of the internal and external environments, and sending an opening or closing instruction to the first heater 6 according to the comparison result;
and the first heater 6 is used for being switched on or switched off according to the instruction.
The intelligent water injection instrument for the oil field can be applied to the environment with the lowest temperature reaching or approaching-40 ℃ at least to ensure the effective operation of the water injection procedure of the oil field, the existing product or technology can be realized only within-20 ℃, and the problem of incapability of normal metering when the temperature is lower, The liquid crystal cannot be normally displayed, controlled and communicated, and the use requirement of a lower temperature environment cannot be met.
The intelligent water injection appearance is used in the oil field that provides in this application embodiment is when the field usage, because ambient temperature's transform can influence the temperature in the heat preservation 4, and the high temperature or too low in the heat preservation 4, the water injector can not normally work, so will set up upper and lower limit temperature, keep the temperature in the heat preservation 4. Therefore, an operator sets upper and lower limit temperature values for a temperature controller in the water injector controller and temperature controller assembly 3 in advance according to the actual temperature situation on site, and the water injector controller and temperature controller assembly 3 sets the upper and lower limit temperature values according to the user to automatically adjust the temperature.
The first temperature detector 21 collects the temperature value of the external environment, the collected temperature value is fed back to the water injector controller and the temperature controller in the temperature controller component 3, when the external temperature is lower than the lower temperature limit set in the temperature controller, the temperature controller sends an instruction to the first heater 6, the first heater 6 starts to rapidly heat according to the full-power mode, at the moment, the first heater 6 rapidly heats up and releases heat energy into the heat preservation layer 4, when the temperature of the first heater 6 continuously rises until the temperature value collected by the second temperature detector 22 reaches the upper temperature limit value of the set temperature, the temperature controller controls the first heater 6 to reduce the heating power to 20% of the rated power, at the moment, the temperature attenuation amplitude of the heat preservation layer 4 is reduced, so that the intelligent water injector can work in the required temperature environment, when the temperature of the external environment continuously decreases, and the temperature in the heat preservation layer 4 is reduced to the lower temperature limit value of the set temperature, the temperature controller controls the first heater 6 to work according to the steps again, so that the environment temperature of the intelligent water injector controller at the mechanical part of the assembly is kept above 0 ℃, normal metering and control of the instrument are guaranteed, and the water injector is guaranteed to work normally within the required temperature.
Optionally, the water injector controller is including setting up metering sensor, control flap, control motor, connecting line and mounting flange on the water injection appearance main part 1, still include devices such as liquid crystal and electron part, when devices such as metering sensor, control flap, control motor, connecting line and mounting flange or liquid crystal and electron part are in under normal operating temperature, the intelligence water injector could work under normal environment, in the lower oil field water injection process of site environment temperature has been solved, because the temperature is low excessively, the unable defect of normal work of water injector that leads to, can't satisfy the problem of operation requirement under the lower temperature environment.
In order to protect the liquid crystal and electronic parts which are influenced by the temperature to the maximum extent, a third temperature detector and an infrared heating device are arranged on the water injector controller and temperature controller component 3 in the water injector controller and temperature controller component 3 except for using the heat preservation layer 4 for heat preservation; the third temperature detector and the infrared heating device are integrated on a control circuit board in the water injector controller and temperature controller assembly 3 and are controlled by a single chip on the water injector controller in the water injector controller and temperature controller assembly 3;
the third temperature detector is used for detecting the internal environment temperature of the heat-insulating layer 4 and sending the detected data to the single chip, and the single chip is a main processor of the intelligent water injector and is used for receiving all the acquired data and sending out a logic command after operation judgment. The single chip is integrated on a control circuit board in the water injector controller and temperature controller component 3, and when the single chip receives an excessively low external temperature conversion value, the single chip sends an instruction to the infrared detection device for temperature control;
the single-chip microcomputer is used for receiving the internal environment temperature of the heat insulation layer 4, comparing preset temperature data with the internal environment temperature data, and sending an opening or closing instruction to the infrared heating device according to the comparison result;
and the infrared heating device is used for being turned on or turned off according to the instruction.
When heating element trouble or inefficacy in heat preservation 4, by the temperature in singlechip control heat preservation 4, infrared heating device work in the singlechip control subassembly when the temperature crosses lowly for temperature is higher than preset temperature in the subassembly, makes the electron part normally work, and when heater normally work in heat preservation 4, the singlechip stops the work of the inside infrared heating device of subassembly according to normal temperature instruction, opens energy-conserving mode.
Optionally, a high-pressure filtering device 8 is arranged on a water inlet pipe 5 of the water injector main body 1, and the high-pressure filtering device 8 filters impurities in a measuring medium to prevent damage to the metering assembly, as shown in fig. 2, when the measuring medium containing the impurities enters the intelligent water injector from the water inlet pipe 5, the measuring medium firstly passes through a filter part, and then enters the intelligent water injector after being filtered by a filter screen part, so that foreign matters are prevented from entering the intelligent water injector, and the metering accuracy is ensured;
be provided with high-pressure check valve 9 on 7 the way of outlet pipe of water injection appearance main part 1, prevent the anti-water, when water injection well pressure is greater than intelligent water injector water inlet pressure, sewage in the water injection well can flow backwards into the water injector through intelligent water injector outlet pipe 7, cause the harm to influence the measurement accuracy simultaneously to the instrument, increase high-pressure check valve 9 at outlet pipe 7 as figure 3, be greater than water injection well pressure when water inlet pressure, 9 doors of high-pressure check valve normally open, when water injection well head pressure is greater than water inlet pressure, ball valve among the high-pressure check valve 9 is closed, the unable refluence of well head anti-water.
Optionally, the injector controller and temperature controller assembly 3 is further connected with a remote terminal device through a communication module. The water injector controller and temperature controller component 3 transmits data to the communication module through a 485 interface, the data are transmitted and analyzed through auxiliary equipment such as a server, and remote data monitoring can be carried out through remote terminal equipment such as a mobile phone and a PC mobile communication device.
Optionally, the first heater 6 is a temperature adjustable heater, and may be selectively set according to actual requirements.
The intelligent water injection appearance is used in oil field that provides in this application, adopt humanized design, the user can be according to the nimble use of on-the-spot actual temperature condition, temperature upper and lower limit value and water injector control can all carry out long-range setting, need not personnel and come and go the field operation, water injector controller and temperature controller subassembly 3 also can be opened or close two kinds of heating functions of first heater 6 and infrared heating device according to the temperature variation, rise when summer external temperature, close first heater 6 and infrared heating device, reducible use energy consumption.
It is noted that relational terms such as "first" and "second," and the like, may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present 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.
It will be understood that the present application is not limited to what has been described above and shown in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (6)
1. An intelligent water injection instrument for an oil field is characterized by comprising a water injection instrument main body, wherein the periphery of the water injection instrument main body is provided with a heat insulation layer;
a first temperature detector is arranged on the water injection instrument main body and positioned on the outer side of the heat insulation layer, and a second temperature detector is arranged on the water injection instrument main body and positioned on the inner side of the heat insulation layer;
a water injector controller, a temperature controller assembly and a first heater are further arranged on the water injector main body in the heat insulation layer, and the first temperature detector, the second temperature detector, the water injector controller, the temperature controller assembly and the first heater are mutually connected;
the heat insulation layer is used for keeping the temperature of the environment where the water injection instrument main body is located in the heat insulation layer and reducing the attenuation amplitude of the temperature in the heat insulation layer;
the first temperature detector is used for detecting the temperature of the external environment of the heat insulation layer and sending the detected temperature data of the external environment to the water injector controller and the temperature controller assembly;
the first temperature detector is used for detecting the temperature of the internal environment of the heat insulation layer and sending the detected temperature data of the internal environment to the water injector controller and the temperature controller assembly;
the water injector controller and temperature controller assembly is used for receiving detection data of the internal and external environments of the heat insulation layer, comparing preset temperature data with the detection data of the internal and external environments, and sending an opening or closing instruction to the first heater according to the comparison result;
and the first heater is used for being switched on or switched off according to the instruction.
2. The intelligent oilfield water injection meter according to claim 1, wherein the injector controller comprises a metering sensor, a control valve, a control motor, a connecting pipeline and a mounting flange arranged on the injector body.
3. The intelligent oilfield water injection instrument according to claim 1, wherein a third temperature detector and an infrared heating device are further arranged on the injector controller and temperature controller assembly;
the third temperature detector and the infrared heating device are integrated on a control circuit board in the water injector controller and the temperature controller assembly and are controlled by a single chip on the water injector controller in the water injector controller and the temperature controller assembly;
the third temperature detector is used for detecting the internal environment temperature of the heat insulation layer and sending the detected data to the single-chip microcomputer;
the single-machine sheet is used for receiving the internal environment temperature of the heat insulation layer, comparing preset temperature data with the internal environment temperature data, and sending an opening or closing instruction to the infrared heating device according to the comparison result;
and the infrared heating device is used for being turned on or turned off according to the instruction.
4. The intelligent oilfield water injection instrument according to claim 1, wherein a high pressure filter device is arranged on a water inlet pipeline of the water injection instrument main body;
and a high-pressure one-way valve is arranged on the water outlet pipeline of the water injection instrument main body.
5. The intelligent oilfield water injection instrument according to claim 1, wherein the injector controller and the temperature controller assembly are further connected with a remote terminal device through a communication module.
6. The intelligent oilfield waterflood injection instrument of claim 1, wherein the first heater is a temperature adjustable heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911400131.8A CN111075411A (en) | 2019-12-30 | 2019-12-30 | Intelligent water injection instrument for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911400131.8A CN111075411A (en) | 2019-12-30 | 2019-12-30 | Intelligent water injection instrument for oil field |
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| CN111075411A true CN111075411A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911400131.8A Pending CN111075411A (en) | 2019-12-30 | 2019-12-30 | Intelligent water injection instrument for oil field |
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| CN206617147U (en) * | 2016-12-20 | 2017-11-07 | 中国石油天然气股份有限公司 | A kind of skid-mounted water injecting device |
| EP3336303A2 (en) * | 2016-12-16 | 2018-06-20 | OneSubsea IP UK Limited | Systems and methods for starting, restarting, monitoring and increasing performance of a production and/or injection system |
| CN110044064A (en) * | 2019-05-21 | 2019-07-23 | 郑州跃龙电子科技有限公司 | A kind of intelligence water purification heat hot water device and heating means |
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| CN2129335Y (en) * | 1991-05-28 | 1993-04-07 | 张锋 | Thermostated container of christmas tree at petroleum portal |
| CN202544805U (en) * | 2012-04-09 | 2012-11-21 | 西安国仪测控设备有限公司 | Intelligent micro steady-flow water distribution valve group |
| CN203035171U (en) * | 2012-11-16 | 2013-07-03 | 陕西星辰石油科技有限公司 | Intelligent skid-mounted water injection station used for oilfield water injection |
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Application publication date: 20200428 |