CN110578511A - Temperature difference type oil well oil yield measuring device and method - Google Patents
Temperature difference type oil well oil yield measuring device and method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000003129 oil well Substances 0.000 title claims abstract description 31
- 239000003921 oil Substances 0.000 claims abstract description 140
- 238000010438 heat treatment Methods 0.000 claims abstract description 132
- 239000010779 crude oil Substances 0.000 claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 claims abstract description 51
- 238000005259 measurement Methods 0.000 claims description 46
- 238000012544 monitoring process Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000009529 body temperature measurement Methods 0.000 claims description 9
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- 239000003208 petroleum Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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Abstract
The embodiment of the invention provides a temperature difference type oil well oil yield measuring device and method, relates to the technical field of crude oil yield measuring tools, and can solve the problems of complex mounting structure and high cost of a current crude oil flow sensor. The method comprises the following steps: arranging a heating module on the oil pipeline to heat the crude oil flowing through the oil pipeline at the heating module; a first temperature sensor module is arranged in front of the oil pipeline section provided with the heating module and used for measuring the initial temperature of the crude oil before heating; a second temperature sensor module is arranged behind the oil pipeline section provided with the heating module and used for measuring the ending temperature of the crude oil after the crude oil is heated for a preset time; and the processor is used for receiving the initial temperature sent by the first temperature sensor and the ending temperature sent by the second temperature sensor and calculating the oil production amount flowing through the oil conveying pipeline in the preset time according to the initial temperature and the ending temperature. The invention is suitable for measuring the output of crude oil in the oil field.
Description
Technical Field
The invention relates to the technical field of crude oil yield measuring tools, in particular to a temperature difference type oil well oil yield measuring device and method.
background
Petroleum is one of the important power energy sources, and the oil yield of oil wells is receiving attention from managers such as oil fields. The oil production of the oil well is generally expressed by flow, and the oil production of the oil well can be acquired indirectly by measuring or metering the flow of the oil well. The method has important guiding significance for accurate and timely measurement or measurement of the oil well, formulation of an oil well production scheme by oil field management personnel, improvement of oil well production efficiency and the like.
At present, the traditional method for acquiring the oil yield of glass tube liquid has the defects of high labor intensity, large measurement error, poor real-time performance and low efficiency, and is difficult to meet the requirements of real-time performance, reliability and accuracy of oil well measurement. With the development of science and technology, various crude oil flow sensors for measuring crude oil production are available on the market, such as coriolis type, ultrasonic type, turbine type, float type, vortex street type, etc. However, because the physical properties of crude oil are relatively complex, and parameters such as viscosity, specific gravity, water content and the like are different, and various flow sensors have different environments, measurement accuracy and self-cost due to the characteristics of the flow sensors, so that the flow sensors have the defects. Such as: the ultrasonic sensor has a complex mounting structure and is difficult to maintain; the Coriolis mass flow sensor can be the flow sensor with the highest flow measurement precision at present, but is expensive; the vortex street type flow sensor has low measurement precision and the like.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a device and a method for measuring oil yield of a thermal oil well, which can at least partially solve the above-mentioned problems caused by the characteristics of the flow sensor itself, such as complicated installation structure and high cost.
In order to achieve the above object, an embodiment of the present invention provides a device for measuring oil yield of a temperature-difference oil well, including: the device comprises a processor, a heating module, a first temperature sensor module and a second temperature sensor module;
The heating module is arranged on the oil pipeline and used for heating the crude oil flowing through the oil pipeline at the heating module;
A first temperature sensor module is arranged in front of the oil pipeline section provided with the heating module and used for measuring the initial temperature of the crude oil before heating; a second temperature sensor module is arranged behind the oil pipeline section provided with the heating module and used for measuring the end temperature of the crude oil after the crude oil is heated for a preset time;
And the processor is used for receiving the initial temperature sent by the first temperature sensor and the ending temperature sent by the second temperature sensor and calculating the oil production amount flowing through the oil pipeline in the preset time according to the initial temperature and the ending temperature.
optionally, the processor is an MSP430F2132 type single-chip microcomputer.
Optionally, the device further includes a heating control circuit module, the heating control circuit module is connected to the processor, and the processor is further configured to control the heating device to be turned on or off through the heating control circuit module.
Optionally, the device further comprises a storage module, which is embedded in the processor or connected with the processor, and is used for storing the measured and calculated oil production and the corresponding first initial temperature measurement time.
optionally, the device further comprises a wireless transmission module, wherein the wireless transmission module is connected with the processor and used for realizing communication interaction between the processor and the measurement and control terminal device.
in a second aspect, an embodiment of the present invention provides a method for measuring oil yield of a temperature-differential oil well, including:
the heating system comprises an oil conveying pipeline, a heating module, a first temperature sensor module, a second temperature sensor module, a processor and a control module, wherein the heating module is installed on the oil conveying pipeline, the first temperature sensor module is arranged on the oil conveying pipeline and in front of the heating module, the second temperature sensor module is arranged on the oil conveying pipeline and behind the heating module, and the heating module, the first sensor module and the second sensor module are respectively and electrically connected with the processor;
The heating module receives an instruction for heating crude oil in the oil pipeline passing through the heating module, and the heating module starts to heat the crude oil in the oil pipeline;
After monitoring that the heating module starts heating, the processor controls the first temperature sensor and the second temperature sensor to enter a temperature monitoring state;
after receiving a monitoring starting instruction sent by the processor, the first temperature sensor periodically monitors a first initial temperature of crude oil in the oil pipeline in front of the heating device and sends the first initial temperature to the processor at a set time threshold;
After receiving a monitoring starting instruction sent by the processor, the second temperature sensor periodically monitors a first finishing temperature of the crude oil in the oil pipeline after the heating device, and sends the first finishing temperature to the processor at a set time threshold;
And the processor calculates the oil production quantity flowing through the oil pipeline in a preset period according to the received first initial temperature and the first finishing temperature.
Optionally, after the processor monitors that the heating module starts heating, when the processor controls the first temperature sensor and the second temperature sensor to enter a temperature monitoring state, the method further includes: reading the real-time of the clock, and detecting whether the real-time of the clock reaches the set time threshold value;
And if the set time threshold is reached, acquiring a first initial temperature monitored by the first temperature sensor and a first finishing temperature monitored by the second temperature sensor once.
Optionally, after the processor calculates the oil production amount flowing through the oil pipeline for a predetermined period according to the received first initial temperature and first end temperature, the method further comprises: and storing the oil production and the first initial temperature measurement time of a preset period.
Optionally, the method further comprises: and the processor sends the received first initial temperature and the first end temperature to the measurement and control terminal equipment, so that the measurement and control terminal equipment calculates the oil production amount flowing through the oil pipeline in a preset period based on the first initial temperature and the first end temperature.
optionally, after the processor calculates the oil production amount flowing through the oil pipeline for a predetermined period according to the received first initial temperature and first end temperature, the method further comprises: and sending the oil production and the first initial temperature measurement time of the preset period to a data management center through a wireless transmission module.
The embodiment of the invention provides a device and a method for measuring the oil yield of a temperature-difference oil well, comprising the following steps: the device comprises a processor, a heating module, a first temperature sensor module and a second temperature sensor module; the heating module is arranged on the oil pipeline and used for heating the crude oil flowing through the oil pipeline at the heating module; a first temperature sensor module is arranged in front of the oil pipeline section provided with the heating module and used for measuring the initial temperature of the crude oil before heating; a second temperature sensor module is arranged behind the oil pipeline section provided with the heating module and used for measuring the end temperature of the crude oil after the crude oil is heated for a preset time; and the processor is used for receiving the initial temperature sent by the first temperature sensor and the ending temperature sent by the second temperature sensor and calculating the oil production amount flowing through the oil pipeline in the preset time according to the initial temperature and the ending temperature. The oil production of the oil well can be directly measured, and the installation structure is simple and the cost is low; furthermore, because the device or the method heats the crude oil, collects the temperature before and after heating, and calculates the oil yield based on the temperature, the device or the method is not influenced by the physical characteristics of the crude oil, such as viscosity, specific gravity and the like, the crude oil measurement environment has better adaptability, and the measurement accuracy can be improved to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of the structure of an embodiment of the temperature-difference oil well oil production measuring device of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention for measuring the oil yield of a temperature-differential oil well;
FIG. 3 is a circuit diagram of an embodiment of the first temperature sensor or the second temperature sensor of the present invention;
FIG. 4 is a circuit diagram of a heating control circuit module according to an embodiment of the present invention;
FIG. 5 is a diagram of an integrated circuit of an embodiment of a clock module and a memory module of the present invention;
FIG. 6 is a circuit diagram of an interface of a wireless transmission module according to an embodiment of the present invention;
FIG. 7 is a flow chart of the operation of an embodiment of the present invention.
Detailed Description
The following describes a temperature-difference oil well oil production measuring device in detail according to an embodiment of the present invention with reference to the accompanying drawings.
it should be understood that the described embodiments are only some embodiments of the invention, 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 invention.
The embodiment of the invention provides a temperature difference type oil well oil yield measuring device and method, which can directly measure the yield of crude oil, have the advantages of simple structure, low cost, good measuring environmental adaptability and reliable measuring precision, and can solve the problems of complex mounting structure and high cost of the current crude oil flow sensor; the measurement environment herein refers to physical property characteristic parameters of the crude oil, such as viscosity, specific gravity, water content, and the like; can be suitable for measuring the output of crude oil in oil fields.
FIG. 1 is a schematic block diagram of the structure of an embodiment of the temperature-difference oil well oil production measuring device of the present invention; FIG. 2 is a schematic diagram of an embodiment of the present invention for measuring the oil yield of a temperature-differential oil well; FIG. 7 is a flow chart of the operation of an embodiment of the present invention. Referring to fig. 1 to 7, a temperature-difference oil well oil production measuring device according to an embodiment of the present invention includes a processor, a heating module, a first temperature sensor module, and a second temperature sensor module.
The heating module is arranged on the oil pipeline and used for heating crude oil flowing through the oil pipeline at the heating module; a first temperature sensor module is arranged in front of the oil pipeline section provided with the heating module and used for measuring the initial temperature of the crude oil before heating; a second temperature sensor module is arranged behind the oil pipeline section provided with the heating module and used for measuring the end temperature of the crude oil after the crude oil is heated for a preset time; and the processor is used for receiving the initial temperature sent by the first temperature sensor and the ending temperature sent by the second temperature sensor and calculating the oil production amount flowing through the oil pipeline in the preset time according to the initial temperature and the ending temperature.
The heating module is connected in defeated oil pipe way, the heating module is a structure that has the cavity both ends are equipped with entry and export respectively, can the entry sets up first temperature sensor the exit sets up the second temperature sensor, utilizes first temperature sensor and second temperature sensor measurement to calculate the difference in temperature around the crude oil heating.
specifically, the amount of oil produced by the oil pipeline flowing for a predetermined time is calculated according to the initial temperature and the end temperature, and the amount of oil produced is calculated according to a basic law of thermodynamics Q ═ c × m (t)2-t1) Calculating the oil production; wherein Q is the heat quantity provided by the heating device, c and m are the specific heat capacity and mass of the heated material, respectively, and t1、t2the temperatures of the material before and after heating, respectively.
It is understood that the basic law of thermodynamics is a scientific finding in the physical-chemical field, as is the discovery that silver halides have light-sensitive properties under illumination, which is known per se; however, many inventions are made based on a certain scientific discovery, and the inventions made based on the known scientific discovery are pioneering and innovative.
the inventor of the invention finds that the oil-water ratio of each well is almost unchanged in a period of time in scientific practice, and the specific heat capacity of the crude oil with a certain oil-water ratio can be regarded as a fixed value; the device is particularly applied to oil field oil yield measurement or measurement scenes, has a simple structure and low cost, has a measuring result not easily affected by different physical properties of crude oil, has good measurement environmental adaptability, can improve the measurement accuracy to a certain degree, and obtains unexpected technical effects.
in order to provide heat with constant power for the heating module, as an alternative embodiment, a voltage stabilizer is arranged in front of the heating module, so that the voltage across the heating module is constant at 220V. The heating module may specifically use a hollow heating rod.
The processor plays a role in controlling and processing data or signals in the measuring device; the processor can be an ultra-low power consumption single chip microcomputer MSP430F2132 of TI company, is a 16-bit ultra-low power consumption single chip microcomputer, and has high processing speed and working voltage of 1.8-3.6V; when the circuit runs under the clock condition of 1MHz, the chip current is about 200-400 muA, and the lowest power consumption of the clock turn-off mode is only 0.1 muA; the starting time of 6 mus can make the starting more rapid; the system integrates a watchdog, a low-power consumption real-time clock (RTC) and a plurality of serial input interfaces, wherein the serial input interfaces comprise a UART (universal asynchronous receiver/transmitter), an IIC (inter-integrated circuit) bus and an SPI (serial peripheral interface) bus; the device has 5 kinds of power saving modes and can be awakened by RTC, external interrupt, etc. The abundant internal resources not only reduce the area of the circuit board, but also reduce the cost of the measuring device.
The first temperature sensor and the second temperature sensor are respectively used for acquiring the inlet temperature and the outlet temperature of the heating device. The first temperature sensor and the second temperature sensor adopt a digital temperature sensor DS18B20 produced by DALLAS company to realize temperature acquisition. The device is simple in communication interface with a single chip microcomputer, only needs one line to be connected, and is high in measurement precision. As shown in fig. 3. In this embodiment, three paths of second temperature sensors may be provided, and the interfaces of the second temperature sensors at the three paths of outlets and the single chip microcomputer are TEM01, TEM02, and TEM03, respectively.
The embodiment of the invention provides a device and a method for measuring the oil yield of a temperature-difference oil well, comprising the following steps: the device comprises a processor, a heating module, a first temperature sensor module and a second temperature sensor module; the heating module is arranged on the oil pipeline and used for heating the crude oil flowing through the oil pipeline at the heating module; a first temperature sensor module is arranged in front of the oil pipeline section provided with the heating module and used for measuring the initial temperature of the crude oil before heating; a second temperature sensor module is arranged behind the oil pipeline section provided with the heating module and used for measuring the end temperature of the crude oil after the crude oil is heated for a preset time; and the processor is used for receiving the initial temperature sent by the first temperature sensor and the ending temperature sent by the second temperature sensor and calculating the oil production amount flowing through the oil pipeline in the preset time according to the initial temperature and the ending temperature. The oil production of the oil well can be directly measured, and the installation structure is simple and the cost is low; furthermore, because the device or the method heats the crude oil, collects the temperature before and after heating, and calculates the oil yield based on the temperature, the device or the method is not influenced by the physical characteristics of the crude oil, such as viscosity, specific gravity and the like, the crude oil measurement environment has better adaptability, and the measurement accuracy can be improved to a certain extent.
as an optional embodiment, the apparatus further includes a heating control circuit module, the heating control circuit module is connected to the processor, and the processor is further configured to control the heating apparatus to be turned on or off through the heating control circuit module.
Referring to fig. 4, a circuit diagram of an embodiment of the heating control circuit module according to the present invention is shown, the heating control circuit module is used for controlling the heating device to be turned on and off, the heating device is turned on when measuring the oil production amount, and is turned off at other times; the single chip serving as the processor controls the high and low levels of the relay PCT through control signals to control the on and off of the MOSP tube, so that the heating module is switched on and off.
In order to avoid the influence of an electric appliance interference signal of 220V alternating current strong electricity on a control signal of the heating module, the heating control circuit module further comprises a photoelectric coupler, and the photoelectric coupler is used for isolating weak electricity from strong electricity. In one embodiment, since the load carrying capability of the photocoupler is limited, the on/off of the ac load can be Controlled by a thyristor, which is also called a thyristor (SCR).
As an optional embodiment, the apparatus further comprises a storage module, which is embedded in the processor or connected with the processor, and is used for storing the measured and calculated oil production and the corresponding first initial temperature measurement time.
it can be understood that the single chip as the processor may have a clock module built therein or connected thereto for timing. The clock module and the memory module can be integrated circuits FM3130 and FM3130, wherein the clock module and the memory module are integrated, a common interface is shared in a package, and the clock module and the memory module can be accessed through independent two-wire device ID. FM3130 communicates with the single-chip via an I2C bus.
As an optional embodiment, the device further comprises a wireless transmission module, wherein the wireless transmission module is connected with the processor and used for realizing communication interaction between the processor and the measurement and control terminal device.
The wireless transmission adopts an ultra-low power consumption micropower wireless transmission module APC240, is a multichannel embedded wireless data transmission module, can be provided with a plurality of channels, has the step of 1KHz and the maximum transmission power of 10mW, adopts high-efficiency cyclic interleaving error correction and detection coding, has the coding gain of nearly 3dBm, has strong comprehensive performance of error correction capability and coding efficiency, and can realize transparent connection; referring to fig. 6, a wireless transmission module interface circuit according to an embodiment of the invention is shown.
Example two
a method for measuring the oil production of a temperature-difference oil well comprises the following steps: the heating module is installed on an oil conveying pipeline, the heating module is arranged on the oil conveying pipeline and located in front of the heating module, the first temperature sensor module is arranged on the oil conveying pipeline and located behind the heating module, and the heating module, the first sensor module and the second sensor module are respectively electrically connected with the processor.
in this embodiment, before the measurement, initialization of the processor, including I/O initialization, serial port initialization, interrupt initialization, FM3130 initialization, and watchdog initialization, is required. And finishing the initial state setting of each port of the MSP430F2132 singlechip, the baud rate of serial port communication, the interrupt time setting of FM3130 and the initial memory address searching of the memory. As an alternative, the interruption time of FM3130 may be set according to the measurement requirements, for example, to 1 hour.
The heating module receives an instruction for heating crude oil in the oil pipeline passing through the heating module, and the heating module starts to heat the crude oil in the oil pipeline.
Referring to fig. 7, in the present embodiment, when the heating module receives an instruction to heat the crude oil in the oil transportation pipeline flowing through the heating module, the starting of heating the crude oil in the oil transportation pipeline includes: acquiring a task execution main body type, wherein the task execution main body type comprises: the system comprises a heating module for heating crude oil, a first temperature sensor and a second temperature sensor for starting to measure the temperature of an inlet and an outlet of a heating device, and a clock module for reading acquisition time; adding working state mark values to the execution main body types respectively; the working state flag value is used for identifying whether a corresponding execution main body needs to be started to work or not; detecting an operating state flag value of the execution subject; if the working state mark value is a preset mark value; assuming that the preset flag value is 3; starting a heating module for heating; the heating module is normally in the off state, the operation of which is marked 4.
After monitoring that the heating module starts heating, the processor controls the first temperature sensor and the second temperature sensor to enter a temperature monitoring state;
after receiving a monitoring starting instruction sent by the processor, the first temperature sensor periodically monitors a first initial temperature of crude oil in the oil pipeline in front of the heating device and sends the first initial temperature to the processor at a set time threshold;
after receiving a monitoring starting instruction sent by the processor, the second temperature sensor periodically monitors a first finishing temperature of the crude oil in the oil pipeline after the heating device, and sends the first finishing temperature to the processor at a set time threshold;
the heating module is started to heat, and simultaneously, the real-time acquired by the clock module is read, and the first temperature sensor and the second temperature sensor are started to monitor the temperature of crude oil at the inlet and the outlet of the heating module; specifically, the working states of the first temperature sensor and the second temperature sensor are marked as 1; before starting the temperature monitoring of the crude oil at the inlet and the outlet, judging whether the working state marks of the first temperature sensor and the second temperature sensor are preset working state marks or not; if yes, the temperature of the crude oil at the inlet and the outlet of the heating module is started to be measured. The period may be set as desired, for example, set to monitor once every 10 seconds; while monitoring the temperature of the entrance and the exit, the method also comprises the following steps: starting a timer of the MSP430F2132, monitoring the duration of each period, and interrupting the acquisition of the temperature when the duration of the set period is reached, such as the 10 seconds; and sending the acquired inlet and outlet temperature values to the processor.
And the processor calculates the oil production quantity flowing through the oil pipeline in a preset period according to the received first initial temperature and the first finishing temperature.
In this embodiment, the processor calls a basic law of thermodynamics formula, and calculates the oil production in the first period according to the formula. Therefore, the oil yield can be directly obtained, the oil well can be accurately and timely measured, and the method has important guiding significance for production management.
the specific implementation manner and technical effects of this embodiment are corresponding to or the same as those of the first embodiment, and may be referred to each other, which will not be described herein again.
in an optional embodiment of the present invention, after the processor monitors that the heating module starts heating, when the processor controls the first temperature sensor and the second temperature sensor to enter the temperature monitoring state, the method further includes: reading the real-time of the clock, and detecting whether the real-time of the clock reaches the set time threshold value;
And if the set time threshold is reached, acquiring a first initial temperature monitored by the first temperature sensor and a first finishing temperature monitored by the second temperature sensor once.
In yet another alternative embodiment of the present invention, after the processor calculates the oil production through the oil pipeline for a predetermined period based on the received first initial temperature and first end temperature, the method further comprises: and storing the oil production and the first initial temperature measurement time of the preset period so as to be convenient for viewing or carrying out related processing.
in yet another optional embodiment of the present invention, the processor sends the received first initial temperature and first end temperature to the monitoring terminal device, so that the monitoring terminal device calculates the oil production amount flowing through the oil delivery pipeline for a predetermined period based on the first initial temperature and the first end temperature. Specifically, the transmission may be performed by a wireless transmission module, and the operating state of the wireless transmission module is marked as 2.
In this embodiment, the measurement and control terminal device is an electronic device with data processing capability, for example, a computer or a smart phone, and by sending the first initial temperature and the first end temperature to the measurement and control terminal device, a manager of the terminal device can know the production status in time to take necessary measures.
In yet another alternative embodiment of the present invention, after the processor calculates the amount of oil production flowing through the oil pipeline for a predetermined period based on the received first initial temperature and first end temperature, the method further comprises: and sending the oil production and the first initial temperature measurement time of the preset period to a data management center through a wireless transmission module.
in this embodiment, the calculation of the oil production amount may also be performed by a data management center, and the specific process of the measurement may also be controlled by a remote data management center or a measurement and control terminal device. Therefore, production management personnel can know the oil production condition in time.
In order to verify the measurement accuracy of the measurement device of the embodiment of the invention, a set of comparative verification experiments were performed as follows: the measurement is carried out by adopting the volumetric flowmeter which is more accurate in the current measurement, and the measurement mode is the prior art and is not repeated; the oil production amount is measured by using the measuring device of the invention, the oil production amount of 8 periods is collected totally, and the result data is shown in table 1:
| S(t/d) | 32.52 | 30.56 | 26.66 | 19.35 | 15.67 | 10.56 | 5.89 | 2.95 |
| C(t/d) | 31.11 | 28.78 | 27.12 | 17.88 | 15.99 | 10.23 | 5.52 | 2.86 |
| d | 4.336％ | 5.825％ | 1.725％ | 7.597％ | 2.042％ | 3.125％ | 6.282％ | 3.051％ |
Wherein S is a standard flow rate measured by the volumetric flowmeter, C is a flow rate measured by the measuring device of the present embodiment, and d is a measurement error. As can be seen from Table 1, the measurement errors of the measurement device of the embodiment are all within 10%, and the measurement requirements of the oil field can be met. On the premise of ensuring the measurement requirements of the oil field, the measuring device or the measuring method further has the advantages of low cost and good environmental adaptability, and can realize automatic measurement of the oil well.
the embodiments of the invention are described with different emphasis and the same basic spirit, and can be referred to each other.
It should be noted that, in this document, the emphasis points of the solutions described in the embodiments are different, but there is a certain correlation between the embodiments, and in understanding the solution of the present invention, the embodiments may be referred to each other; in addition, when a technical feature element is connected to another technical feature element, the technical feature element may be directly connected to another technical feature element or may be indirectly connected to another technical feature element in the middle. Moreover, 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 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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A temperature-differential oil well oil production measuring device comprises: the device comprises a processor, a heating module, a first temperature sensor module and a second temperature sensor module;
The heating module is arranged on the oil pipeline and used for heating the crude oil flowing through the oil pipeline at the heating module;
A first temperature sensor module is arranged in front of the oil pipeline section provided with the heating module and used for measuring the initial temperature of the crude oil before heating; a second temperature sensor module is arranged behind the oil pipeline section provided with the heating module and used for measuring the end temperature of the crude oil after the crude oil is heated for a preset time;
And the processor is used for receiving the initial temperature sent by the first temperature sensor and the ending temperature sent by the second temperature sensor and calculating the oil production amount flowing through the oil pipeline in the preset time according to the initial temperature and the ending temperature.
2. The measurement device of claim 1, wherein the processor is a model MSP430F2132 single-chip microcomputer.
3. The measurement device of claim 1 or 2, further comprising a heating control circuit module, wherein the heating control circuit module is connected to the processor, and the processor is further configured to control the heating device to be turned on or off through the heating control circuit module.
4. The measurement device of claim 1, further comprising a memory module, built into or connected to the processor, for storing the measured calculated oil production and the corresponding first initial temperature measurement time.
5. The measurement device according to claim 1, further comprising a wireless transmission module, wherein the wireless transmission module is connected with the processor and is used for realizing communication interaction between the processor and the measurement and control terminal device.
6. A method for measuring the oil production of a temperature-difference oil well comprises the following steps:
The heating system comprises an oil conveying pipeline, a heating module, a first temperature sensor module, a second temperature sensor module, a processor and a control module, wherein the heating module is installed on the oil conveying pipeline, the first temperature sensor module is arranged on the oil conveying pipeline and in front of the heating module, the second temperature sensor module is arranged on the oil conveying pipeline and behind the heating module, and the heating module, the first sensor module and the second sensor module are respectively and electrically connected with the processor;
the heating module receives an instruction for heating crude oil in the oil pipeline passing through the heating module, and the heating module starts to heat the crude oil in the oil pipeline;
after monitoring that the heating module starts heating, the processor controls the first temperature sensor and the second temperature sensor to enter a temperature monitoring state;
After receiving a monitoring starting instruction sent by the processor, the first temperature sensor periodically monitors a first initial temperature of crude oil in the oil pipeline in front of the heating device and sends the first initial temperature to the processor at a set time threshold;
After receiving a monitoring starting instruction sent by the processor, the second temperature sensor periodically monitors a first finishing temperature of the crude oil in the oil pipeline after the heating device, and sends the first finishing temperature to the processor at a set time threshold;
And the processor calculates the oil production quantity flowing through the oil pipeline in a preset period according to the received first initial temperature and the first finishing temperature.
7. The method of claim 6, wherein when the processor controls the first temperature sensor and the second temperature sensor to enter the temperature monitoring state after monitoring that the heating module starts heating, the method further comprises: reading the real-time of the clock, and detecting whether the real-time of the clock reaches the set time threshold value;
and if the set time threshold is reached, acquiring a first initial temperature monitored by the first temperature sensor and a first finishing temperature monitored by the second temperature sensor once.
8. The method of claim 6, wherein after the processor calculates the amount of oil production through the oil delivery line for the predetermined period based on the received first initial temperature and first end temperature, the method further comprises: and storing the oil production and the first initial temperature measurement time of a preset period.
9. the method of claim 6, further comprising: and the processor sends the received first initial temperature and the first end temperature to the measurement and control terminal equipment, so that the measurement and control terminal equipment calculates the oil production amount flowing through the oil pipeline in a preset period based on the first initial temperature and the first end temperature.
10. the method of claim 6, wherein after the processor calculates the amount of oil production through the oil delivery line for the predetermined period based on the received first initial temperature and first end temperature, the method further comprises: and sending the oil production and the first initial temperature measurement time of the preset period to a data management center through a wireless transmission module.
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