阅读说明：本技术 油田站间供热温度补偿方法及补偿系统 (Oil field interstation heat supply temperature compensation method and compensation system ) 是由 胡克 苍禹茜 胡杨 董科 苏国锐 李香凝 张毓钊 鲁一阳 宋爽 徐冰黎 徐冰溪 于 2020-12-31 设计创作，主要内容包括：本发明属于油田站间供热技术领域,公开了油田站间供热温度补偿方法及补偿系统。将中转站分离器分离的35～40度沉降污水,通过站内工艺流程输入中转站洗井加热炉加热至41～77度,经洗井泵加压至3兆帕后管输到站间温度补偿装置补偿到97度,在通过计量间洗井工艺流程和单井掺水洗井管线输送到油井井口洗井流程。达到降耗增产、提质增效的目的。(The invention belongs to the technical field of heat supply among oil field stations, and discloses a method and a system for compensating heat supply temperature among oil field stations. Inputting the 35-40 ℃ settled sewage separated by the transfer station separator into a transfer station well-flushing heating furnace through an in-station process flow, heating to 41-77 ℃, pressurizing to 3MPa by a well-flushing pump, conveying to an inter-station temperature compensation device by a pipe to compensate to 97 ℃, and conveying to an oil well wellhead well-flushing process through a metering inter-well-flushing process flow and a single-well water-mixed well-flushing pipeline. The purposes of reducing consumption, increasing production, improving quality and increasing efficiency are achieved.)

1. A method for compensating heat supply temperature between stations in an oil field is characterized in that 35-40 ℃ settled sewage separated by a separator of a transfer station is input into a well-flushing heating furnace (1) of the transfer station through an in-station process flow and heated to 41-77 ℃, is pressurized to 3MPa by a well-flushing pump (4), is conveyed to a temperature compensation device (9) between stations to be compensated to 97 ℃, and is conveyed to a well-head well-flushing flow of the oil well through a well-flushing process flow of a metering room (11) and a single-well water-mixed well-flushing pipeline (13);

the compensation method adopts an oil field interstation heat supply temperature compensation system, which comprises the following components: comprises a well washing pipeline, a water mixing pipeline and a metering room (11); the well washing pipeline and the water mixing pipeline are respectively connected with the metering room (11), the other side of the metering room (11) is respectively connected with a ground oil collecting pipeline (12) and a water mixing well washing pipeline (13), and the ground oil collecting pipeline (12) and the water mixing well washing pipeline (13) are connected with a well head;

the well washing pipeline comprises a transfer station well washing heating furnace (1), a well washing pump (4) and a well washing pipeline (6) which are connected in sequence; two parallel pipelines are arranged between the well flushing pipeline (6) and the metering room (11): a pipeline A and a pipeline B; the pipeline A is provided with a well-flushing cut-off gate (7), and the pipeline B comprises a temperature compensation water inlet cut-off gate (8), a temperature compensation device (9) and a temperature compensation outlet cut-off gate (10) which are sequentially connected;

the watering pipeline comprises a transfer station watering heating furnace (2), a watering pump (3) and a watering pipeline (5) which are connected in sequence;

the wellhead comprises a polish rod (20), a main gate (18) is arranged below the polish rod (20) in the vertical direction, a small four-way is connected to the upper end of the main gate (18), the main gate (18) is respectively connected with a production gate (14) and a production emptying gate (17) through the small four-way, a large four-way is arranged at the lower end of the main gate (18), and the main gate (18) is respectively connected with a casing well washing gate (16) and a casing pressure measuring emptying gate (19) through the large four-way; the production gate (14) is connected with the casing well-flushing gate (16), and a water-mixing cut-off gate (15) is also arranged between the production gate (14) and the casing well-flushing gate (16); an oil pipe (21) is arranged below the main gate (18) in the vertical direction, and a sleeve (22) is arranged on the outer side of the oil pipe (21);

the tail end of the ground oil collecting pipeline (12) is connected with a production gate (14), and the tail end of the water mixing well washing pipeline (13) is connected with a casing well washing gate (16).

2. The oil field interstation heat supply temperature compensation method according to claim 1, wherein the production gate (14) and the production emptying gate (17) are arranged on the same horizontal line and above the main gate (18); the casing well-flushing gate (16) and the casing pressure-measuring emptying gate (19) are arranged on the same horizontal line and are arranged below the main gate (18).

3. The oil field interstation heat supply temperature compensation method according to claim 2, wherein the casing pressure measuring emptying gate (19) is connected with a pressure transmitter (23).

Technical Field

The invention belongs to the technical field of heat supply among oil field stations, and relates to a method and a system for compensating heat supply temperature among oil field stations.

Background

Heat supply between stations: the method is characterized in that a hot water pipe at 50-77 ℃ of a heating furnace of a transfer oil station is conveyed to a metering room, and the hot water pipe is conveyed to the wellhead of the mechanical production well through water mixing and well washing process flow pipes of the metering room, so that the purposes of water mixing and heat tracing of produced liquid of the mechanical production well, wax precipitation of a rod pipe in the well and wax precipitation of a ground oil collecting pipeline are achieved. Wherein: the water mixing temperature is 50-55 ℃; the average temperature for cleaning the wax deposition of the well inner pipe and the wax deposition of the ground oil collecting pipeline is 77 ℃; the average cleaning fluid displacement is 15 cubic meters per hour. .

Because the average output water temperature given by the well-flushing heating furnace is 77 ℃, the best well-flushing effect above 95 ℃ cannot be achieved, and the shortage of low water temperature can only be compensated by adopting large discharge capacity and prolonging well-flushing time. This method of flushing not only results in increased energy consumption, but also affects the oil production of the pumped production well.

According to different conditions such as single well liquid production amount, produced liquid temperature, water content, wax precipitation temperature, ground oil collecting pipeline heat preservation effect and the like, most common conditions are surface oil collecting pipe wax precipitation and underground rod pipe wax precipitation. Particularly, the problem of wax deposition of ground oil collecting pipelines is particularly prominent in the mechanical production wells conveyed at normal temperature.

1. When the temperature of the produced liquid is lower than the wax precipitation temperature (34 ℃), the wax components in the crude oil start to crystallize and transform into solid and attach to the corresponding section of the closed system. If the amount of produced fluid is low and the temperature of the thermal field around the wellbore is low, the rod pipe will tend to start wax deposition in the deep portion of the wellbore and will move upwards. When wax precipitation starts, the liquid flow channel can be blocked in the continuous pipe section, and if the wax precipitation occurs in an oil pipe, the wax precipitation in the pipe is obtained; if the wax precipitation happens in the ground oil collecting pipeline, the wax precipitation is carried out on the oil collecting pipeline.

2. Because of the need of energy saving and consumption reduction, the production in summer of oil field adopts normal temperature transportation, i.e. the normal temperature water (lower than 40 ℃) settled in the oil transfer station is directly transported to the metering room and well head by the water-mixing pump without heating. The production of oil field in winter is normally started, but the oil return temperature and the water doping amount of a single well (the water doping temperature of a well head is lower than 55 ℃, the oil return temperature of a metering room is lower than 36 ℃, and the water doping amount is 0.8 m) are controlled³H); because the water mixing temperature and the oil return temperature are low, the average wax precipitation temperature is 34 ℃, and the average wax melting temperature is 50 ℃, the process of extracting the liquid wax precipitation is accelerated.

The downhole string and surface gathering line wax deposition mainly has the following effects:

1. the annular space of the rod pipe is reduced, and the liquid flow resistance is increased; the inner diameter of the ground oil collecting pipeline is narrowed, and the back pressure of the wellhead is larger than a set value. The load of mechanical mining equipment is increased and the energy consumption is increased.

2. The fixed valve and the traveling valve of the oil well pump are not closed tightly, so that the leakage is caused, and the oil production of the mechanical production well is influenced.

3. Causing the sucker rod to run fatigue and reducing the service life of the sucker rod.

4. Is an important factor influencing the eccentric wear of the rod pipe and the shortening of the pump detection period of the mechanical production well.

5. The mechanical mining equipment, the power frequency and the frequency conversion fault rate are increased, and the daily maintenance workload is increased.

6. Causing the maintenance cost of mechanical mining equipment and the cost of pump inspection to rise.

For a long time in oil fields, there are two methods for cleaning the wax deposit of the underground rod pipe and the wax deposit of the surface oil collecting pipeline: firstly, cleaning by using a heat supply system of a transfer station; secondly, washing by utilizing high-pressure hot washing. In the prior art, the method for cleaning the wax precipitation of the underground rod pipe and the wax precipitation of the ground oil collecting pipeline by using high-pressure hot car washing is the most effective method at present in an oil field. However, the high-pressure hot-washing well-washing method is only used in the period of overhaul of the well-washing heating furnace of the transfer station and on the mechanical production well without the hot-washing process due to the high cost and less configuration of the high-pressure hot-washing well-washing.

Disclosure of Invention

The invention aims to overcome the defects in the background technology, and provides a temperature compensation method and a temperature compensation system for heat supply between stations of an oil field, so as to achieve the purposes of reducing consumption, increasing yield, improving quality and increasing efficiency.

The technical scheme adopted by the invention for solving the technical problems is as follows: the method for compensating the heat supply temperature between the oil field stations comprises the following steps: inputting the 35-40 ℃ settled sewage separated by the transfer station separator into a transfer station well-flushing heating furnace through an in-station process flow, heating to 41-77 ℃, pressurizing to 3MPa by a well-flushing pump, conveying to an inter-station temperature compensation device by a pipe to compensate to 97 ℃, and conveying to an oil well wellhead well-flushing process through a metering inter-well-flushing process flow and a single-well water-mixed well-flushing pipeline.

The second purpose of the invention requests to protect the oil field interstation heat supply temperature compensation system adopted by the compensation method, which comprises a well flushing pipeline, a water mixing pipeline and a metering room; the well washing pipeline and the water blending pipeline are respectively connected with the metering room, the other side of the metering room is respectively connected with a ground oil collecting pipeline and a water blending well washing pipeline, and the ground oil collecting pipeline and the water blending well washing pipeline are connected with a well head;

the well washing pipeline comprises a transfer station well washing heating furnace, a well washing pump and a well washing pipeline which are connected in sequence; two parallel pipelines are arranged between the well flushing pipeline and the metering room: a pipeline A and a pipeline B; the pipeline A is provided with a well-flushing cut-off gate, and the pipeline B comprises a temperature compensation water inlet cut-off gate, a temperature compensation device and a temperature compensation outlet cut-off gate which are sequentially connected;

the watering pipeline comprises a transfer station watering heating furnace, a watering pump and a watering pipeline which are connected in sequence;

the well head comprises a polish rod, a main gate is arranged below the polish rod in the vertical direction, the upper end of the main gate is connected with a small four-way, the main gate is respectively connected with a production gate and a production emptying gate through the small four-way, the lower end of the main gate is provided with a large four-way, and the main gate is respectively connected with a casing well washing gate and a casing pressure measuring emptying gate through the large four-way; the production gate is connected with the casing well-flushing gate, and a water-mixing cut-off gate is arranged between the production gate and the casing well-flushing gate; an oil pipe is arranged below the main gate in the vertical direction, and a sleeve is arranged outside the oil pipe;

the tail end of the ground oil collecting pipeline is connected with the production gate, and the tail end of the water-mixing well washing pipeline is connected with the casing well washing gate.

The production gate and the production emptying gate are arranged on the same horizontal line and are arranged above the main gate; the casing well-flushing gate and the casing pressure-measuring emptying gate are arranged on the same horizontal line and are arranged below the main gate;

and the sleeve pressure measuring and emptying gate is connected with a pressure transmitter.

Furthermore, the well washing pipeline and the water mixing pipeline are respectively connected with the front side of the metering room; the other side of the metering room is respectively connected with a ground oil collecting pipeline and a water-mixing well-washing pipeline;

furthermore, the temperature compensation device is a thick film electric heating temperature compensation device.

The pipeline at the inlet end of the temperature compensation device is also provided with an incoming water pressure transmitter and an incoming water temperature transmitter; the outlet end pipeline of the temperature compensation device is also provided with an outlet water pressure transmitter and an outlet water temperature transmitter;

and a spiral multifunctional flowmeter is also arranged on the pipeline at the inlet end of the temperature compensation device.

An oil-gas separator is also arranged in the metering room, and a spiral multifunctional flowmeter is arranged at the outlet of the oil-gas separator; a crude oil water content analyzer is arranged at the spiral multifunctional flowmeter; the front end pipeline and the rear end pipeline of the spiral multifunctional flowmeter are provided with cutting gates;

an oil collecting manifold is arranged in the metering chamber, and an oil collecting manifold pressure transmitter is arranged on an oil collecting manifold pipeline;

an oil return pipeline is also connected between the metering rooms; a single-well oil return temperature transmitter is arranged between the metering room and the oil return pipeline;

the incoming water pressure transmitter, the incoming water temperature transmitter, the spiral multifunctional flowmeter, the temperature compensation device, the outgoing water pressure transmitter, the outgoing water temperature transmitter, the single-well return oil temperature transmitter, the oil collection header pressure transmitter, the crude oil water content analyzer and the pressure transmitter are respectively connected with the PLC system.

Compensating incoming water of a well-flushing heating furnace of a transfer oil station to 97 degrees from 36-77 degrees, conveying the incoming water to a wellhead well-flushing flow of a mechanical production well through a metering interval well-flushing process flow pipe, cleaning paraffin precipitation of underground rod pipes and paraffin precipitation of ground oil collecting pipelines with controllable discharge capacity of less than 3.5 cubic meters per hour, and changing the ground cleaning of the paraffin precipitation rod pipes into the in-well cleaning in the underground operation construction. The purposes of reducing consumption, increasing production, improving quality and efficiency and reducing environmental pollution are achieved.

Compared with the prior art, the invention has the beneficial effects that:

the invention utilizes a quick-heating and high-efficiency thick film electric heating temperature compensation device to compensate the incoming water of a well-flushing heating furnace of a transfer oil station from 41-77 ℃ to 97 ℃ to reach high temperature (97 ℃) and small discharge capacity (less than 3.5 m)³H), low cost and less influence on the oil production of the mechanical oil production well. Compared with the prior well washing method, the method has the following advantages:

1. the thermal efficiency of the invention reaches 97%. The thermal efficiency of the prior art is less than or equal to 80 percent, and is gradually reduced to below 60 percent under the influence of scaling and wax precipitation on the outer wall of a heating pipe and polymers along with the prolonging of the operation time of a well-flushing heating furnace.

2. The invention can heat the well-flushing liquid to 97 ℃ to reach the optimal temperature for hot well-flushing. The prior art hot-wash wellbore fluid temperature averages 77 degrees.

3. The invention controls the well-flushing fluid discharge capacity within the actual discharge capacity of the oil-well pump (less than or equal to 3.5 m)³H); the hot well washing method can prevent well washing liquid from flowing back to oil layer, reduce influence on oil production of mechanical oil production well and lower heat loss and well washing cost. The prior art is the well-flushing fluid discharge (15 m)³The/h) is larger than the actual discharge capacity of the oil well pump; the normal flowing pressure of the mechanical production well is averagely 2.8 MPa, and the well washing pressure and the hydrostatic column pressure are averagely more than 10 MPa, which results in 80 percent of the total pressureThe flushing fluid on the oil reservoir flows back to the oil reservoir, which causes the increase of energy consumption and influences the oil production of the mechanical oil production well.

4. The invention has the characteristics of corrosion prevention, scale prevention, long service life (15000h) and low maintenance cost. In the prior art, the heating pipe is operated under the conditions of high temperature, scaling and wax deposition (polymer) for a long time, so that the corrosion, deformation and perforation of the heating pipe are inevitably caused. In order to ensure the safe operation of the heating furnace, the oil field scientifically sets a heating furnace overhaul period: polymer flooding is carried out for about 1.5 years on average; the average water flooding is about 4 years. The overhaul cost is 40-50 ten thousand yuan.

5. The invention can clean the wax precipitation rod pipe in the well before the construction of the underground operation; the cleaning method can not only accelerate the operation construction progress, but also prevent the pollution to the environment. In the prior art, more than 100 wax precipitation rod pipes in a well are lifted to the ground and placed on a rod pipe bridge provided with a water receiving tank, a fuel steam boiler is used for cleaning the rod pipes on the ground to precipitate wax, and then oil and water in the water receiving tank are recovered through a centrifugal pump.

6. The invention can prolong the overhaul period of the well-flushing heating furnace in the prior art. The specific method comprises the following steps: the water temperature of the well-flushing heating furnace is reduced from 77 ℃ to the non-scaling temperature (lower than 60 ℃), and then the water temperature is compensated to 97 ℃ by the temperature compensation device, so that the purpose of prolonging the service life of the well-flushing heating furnace is achieved.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a schematic diagram of an oilfield station heating temperature compensation system of the present invention.

Fig. 2 is a block diagram of the data acquisition/data transmission terminal of the eStar-3000/3500 of the present invention.

In the figure, 1, a transfer station well washing heating furnace, 2, a transfer station water mixing heating furnace, 3, a water mixing pump, 4, a well washing pump, 5, a water mixing pipeline, 6, a well washing pipeline, 7, a well washing cutting gate, 8, a temperature compensation water inlet cutting gate, 9, a temperature compensation device, 10, a temperature compensation outlet cutting gate, 11, a metering room, 12, a ground oil collecting pipeline, 13, a water mixing well washing pipeline, 14, a production gate, 15, a water mixing cutting gate, 16, a sleeve well washing gate, 17, a production emptying gate, 18, a main gate, 19, a sleeve pressure measuring emptying gate, 20, a polished rod, 21, an oil pipe, 22, a sleeve and 23 are pressure transmitters.

Detailed Description

The invention is further described below with reference to the drawings attached to the specification, but the invention is not limited to the following examples. The water pressure transmitter, the temperature transmitter that comes, spiral multi-functional flowmeter, temperature compensation arrangement, play water pressure transmitter, play water temperature transmitter, single well oil return temperature transmitter, collection oil header pressure transmitter, crude oil water content analysis appearance, pressure transmitter that this embodiment is connected with the PLC system are all unrestricted with a certain model, spiral multi-functional flowmeter model is not limited, can realize the flow measurement and give the instrument of PLC system function with the signal feedback can.

Example 1

The method for compensating the heat supply temperature between the oil field stations comprises the following steps: inputting the 35-40 ℃ settled sewage separated by the transfer station separator into a transfer station well-flushing heating furnace 1 through an in-station process flow, heating to 41-77 ℃, pressurizing to 3MPa through a well-flushing pump 4, conveying to a station temperature compensation device 9 through a pipe to compensate to 97 ℃, and conveying to an oil well wellhead well-flushing flow through a metering station 11 well-flushing process flow and a single-well water-mixed well-flushing pipeline 13.

A temperature compensation system for heat supply between stations of an oil field is shown in figure 1 and comprises a well flushing pipeline, a water mixing pipeline and a metering room 11; the well washing pipeline and the water blending pipeline are respectively connected with the metering room 11, the other side of the metering room 11 is respectively connected with a ground oil collecting pipeline 12 and a water blending well washing pipeline 13, and the ground oil collecting pipeline 12 and the water blending well washing pipeline 13 are connected with a well head;

the well washing pipeline comprises a transfer station well washing heating furnace 1, a well washing pump 4 and a well washing pipeline 6 which are connected in sequence; two parallel pipelines are arranged between the well flushing pipeline 6 and the metering room 11: a pipeline A and a pipeline B; the pipeline A is provided with a well-flushing cut-off gate 7, and the pipeline B comprises a temperature compensation water inlet cut-off gate 8, a temperature compensation device 9 and a temperature compensation outlet cut-off gate 10 which are sequentially connected;

the water mixing pipeline comprises a transfer station water mixing heating furnace 2, a water mixing pump 3 and a water mixing pipeline 5 which are connected in sequence;

the wellhead comprises a polish rod 20, a main gate 18 is arranged below the polish rod 20 in the vertical direction, the upper end of the main gate 18 is connected with a small four-way joint, the main gate 18 is respectively connected with a production gate 14 and a production emptying gate 17 through the small four-way joint, the lower end of the main gate 18 is provided with a large four-way joint, and the main gate 18 is respectively connected with a casing well washing gate 16 and a casing pressure measuring emptying gate 19 through the large four-way joint; the production gate 14 is connected with a casing well washing gate 16, and a water mixing cut-off gate 15 is arranged between the production gate 14 and the casing well washing gate 16; an oil pipe 21 is arranged below the main gate 18 in the vertical direction, and a sleeve 22 is arranged outside the oil pipe 21;

the end of the ground oil collecting pipeline 12 is connected with a production gate 14, and the end of the watering well washing pipeline 13 is connected with a casing well washing gate 16.

The production gate 14 and the production emptying gate 17 are arranged on the same horizontal line and are arranged on two sides of a small four-way joint at the upper end of a main gate 18; the casing well-flushing gate 16 and the casing pressure-measuring emptying gate 19 are arranged on the same horizontal line and are arranged on two sides of a large four-way at the lower end of the main gate 18;

the sleeve pressure measuring and emptying gate 19 is connected with a pressure transmitter 23.

Further, the well washing pipeline and the water mixing pipeline are respectively connected with the front side of the metering room 11; the other side of the metering room 11 is respectively connected with a ground oil collecting pipeline 12 and a water-mixing well-washing pipeline 13;

further, the temperature compensation device 9 is a thick film electrothermal temperature compensation device.

And a spiral multifunctional flowmeter is arranged in the metering room 11.

An incoming water pressure transmitter and an incoming water temperature transmitter are also arranged on the pipeline of the inlet end of the temperature compensation device 9; the outlet end pipeline of the temperature compensation device 9 is also provided with an outlet water pressure transmitter and an outlet water temperature transmitter;

and a spiral multifunctional flowmeter is also arranged on the pipeline at the inlet end of the temperature compensation device 9.

An oil-gas separator is also arranged in the metering room 11, and a spiral multifunctional flowmeter is arranged at the outlet of the oil-gas separator; a crude oil water content analyzer is arranged at the spiral multifunctional flowmeter; the front end pipeline and the rear end pipeline of the spiral multifunctional flowmeter are provided with cutting gates;

an oil collecting manifold is arranged in the metering room 11, and an oil collecting manifold pressure transmitter is arranged on a pipeline of the oil collecting manifold;

the metering room 11 is also connected with an oil return pipeline; a single-well oil return temperature transmitter is arranged between the metering room 11 and the oil return pipeline;

the incoming water pressure transmitter, the incoming water temperature transmitter, the spiral multifunctional flowmeter, the temperature compensation device, the outgoing water pressure transmitter, the outgoing water temperature transmitter, the single-well return oil temperature transmitter, the oil collection header pressure transmitter, the crude oil water content analyzer and the pressure transmitter are respectively connected with the PLC system.

The working process of the oil field interstation heat supply temperature compensation system is as follows:

and inputting the 35-40 ℃ settled sewage separated by the transfer station oil-water separator into a transfer well-flushing heating furnace 1 through the in-station process flow, and heating the temperature of the well-flushing liquid to 41-77 ℃ by the transfer well-flushing heating furnace 1. Starting the well washing pump 4, wherein the outlet pressure of the well washing pump 4 is 3mpa, and the discharge capacity of the well washing liquid is 15m³And h, conveying the well washing liquid to the metering room 11 through a well washing pipeline 6. And opening the temperature compensation water inlet cutting gate 8 and the temperature compensation outlet cutting gate 10, closing the well washing cutting gate 7, and conveying the well washing liquid into the temperature compensation device 9. Starting the temperature compensation device 9, controlling the well-flushing fluid discharge at 3.5m³Compensating the flushing fluid from 41-77 ℃ to 97 ℃ within the per hour, conveying the flushing fluid to the metering room 11 through a pipe, and conveying the flushing fluid to the wellhead of the mechanical production well for flushing through a single-well water-mixed flushing pipeline 13. Opening a casing well-flushing gate 16, closing a water-mixing cut-off gate 15, and introducing well-flushing fluid into an oil jacket annular space in the well: the annular space formed by the casing 22 and the oil pipe 21 returns to the surface oil collection line 12 through the oil pipe 21. The thick film electric heating temperature compensation device 9 is composed of a plurality of heating elements, has the function of automatic start one by one, and avoids the impact of the heating elements on the power grid caused by the simultaneous start.

The crude oil water content analysis and measurement integrated device can replace the glass tube oil measurement between the single well sampling assay and the measurement of the manual recording oil production well in the past, more accurately records the data of the crude oil water content and the crude oil yield, and is an important basis for scientifically making oil field oil stability, water control and accurate enforcement.

The spiral multifunctional flowmeter is a multifunctional integrated product. The pressure display and multi-output functions are realized; has the characteristics of wear resistance, corrosion resistance, wax prevention and scale prevention.

The pressure transmitter and the temperature transmitter are as follows: the device has the advantages of high precision, large measurement range, long-distance signal transmission, higher anti-seismic performance, explosion-proof design requirement satisfaction and long-term use in severe environment.

The thick film electrothermal temperature compensation device 9 is suitable for occasions of high voltage, high power and large current, and provides a more stable output medium for the electrothermal technology.

The system is also provided with a lower eStar-3000/3500 point-to-point remote wireless data acquisition/data transmission/video transmission terminal and a temperature transmitter; upper human-computer interface display, parameter setting, report generation, fault alarm and the like.

The eStar-3000/3500 can monitor the current operation curve change of the mechanical production well in the well washing process in real time and carry out quantitative analysis on the well washing effect.

The eStar-3000/3500 can monitor the running state of the temperature compensation device in real time, acquire the production parameters of inlet water temperature, pressure, flow, outlet water temperature, single well return oil temperature, flow, water content, pressure and the like of the temperature compensation device in real time, browse production pictures on site in real time through videos, and has a pipeline leakage alarm function.

The point-to-point wireless communication system is used for realizing information exchange between any two users in the network. The system mainly comprises a lower eStar-3000/3500 data acquisition/data transmission terminal and the like; the upper level comprises human-computer interface display, parameter setting, report generation, fault alarm and the like. The method is suitable for small-bandwidth low-speed remote communication for collecting real-time production data of oil-water wells and measurement rooms and high-speed large-bandwidth 5G communication between stations.

The system has the characteristics of low investment, low operation and maintenance cost, no generation of later communication cost, full utilization of the built measurement and control system for use, establishment of a client according to the authority of multi-level management and the like, and is a very practical operation platform and management platform suitable for the petroleum industry field.

The eStar-3000/3500 data acquisition/data transmission terminal is a wireless data transmission terminal based on the advanced spread spectrum technology, and provides a wireless data transmission function for users by using a wireless network.

The module is designed by adopting a modulation technology from a military tactical communication system, and the problem of ultra-long distance communication of small data volume in a complex environment is perfectly solved. Compared with the traditional modulation technology, the eStar-3000/3500 series module has obvious advantages in the performance of inhibiting same frequency interference, and the defect that the traditional design scheme cannot simultaneously consider distance, interference resistance and power consumption is overcome. In addition, the module integrates an adjustable power amplifier, the receiving sensitivity exceeding-148 dBm can be obtained, the link budget reaches the leading level of the industry, and the scheme is not the second choice for the occasions which are applied to long-distance transmission and have extremely high requirements on reliability.

The eStar-3000/3500 data acquisition/data transmission terminal adopts a high-performance industrial scheme, takes an embedded real-time operating system as a software support platform, provides RS232 and RS485 interfaces, can be directly connected with serial port equipment, and realizes a transparent data transmission function; the design of low power consumption, the lowest power consumption is less than 5mA @12 VDC; and 1 or 3 paths of motor current real-time data acquisition are provided, and a remote wireless transmission function is realized.

The eStar-3000/3500 data acquisition/data transmission terminal: adopting a high-performance industrial chip; the low power consumption design supports multi-stage sleep and wake-up modes, and reduces the power consumption to the maximum extent; the metal shell is safely isolated from the system, and is particularly suitable for application in industrial control fields; wide power input.

The eStar-3000/3500 data acquisition/data transmission terminal: WDT (watchdog timer) watchdog design to ensure system stability; 15KV ESD protection is built in the RS232/RS485/RS422 interface; the power interface is internally provided with reverse phase protection and overvoltage protection.

The eStar-3000/3500 data acquisition/data transmission terminal: the industrial terminal interface is adopted, and the method is particularly suitable for industrial field application; standard RS232 and standard RS485 interfaces are provided, and the serial port equipment can be directly connected; the intelligent data terminal can enter a data transmission state after being electrified; convenient to use, nimble, multiple working mode selection.

The eStar-3000/3500 data acquisition/data transmission terminal: the wireless spread spectrum short-distance data transmission function is supported, and the ad hoc network capability is realized; the relay router has the functions of relay routing and terminal equipment; the network capacity is large: the typical number is 300; the transmission mode is flexible: a broadcast transmission or target address transmission mode may be selected.

The wireless parameters of the eStar-3000/3500 data acquisition/data transmission terminal are shown in the following table 1:

TABLE 1 eStar-3000/3500 data acquisition/data transfer terminal Wireless parameters

Item	Content providing method and apparatus
		Communication standard and frequency band	The product line supports various frequency bands (433MHz) all over the world
Indoor/urban communication distance	eStar-3000:7km eStar-3500:7km
		Outdoor/line-of-sight communication distance	eStar-3000:30km eStar-3500:30km
Transmitting power	eStar-3000:20dBm eStar-3500:30dBm
		Theoretical rate of communication	6-stage adjustable (0.3, 0.6, 1.0, 1.8, 3.1, 5.5Kbps)
Sensitivity of the probe	-140dBm

The types of interfaces of the data acquisition/data transmission terminal of the eStar-3000/3500 are shown in the following table 2:

TABLE 2 eStar-3000/3500 data acquisition/data transfer terminal interface types

The power consumption of the eStar-3000/3500 data collection/data transmission terminal is shown in table 3 below:

TABLE 3 eStar-3000/3500 data acquisition/data Transmission terminal Power consumption

The physical characteristics of the eStar-3000/3500 data acquisition/data transmission terminal are shown in table 4 below:

TABLE 4 eStar-3000/3500 data acquisition/data transfer terminal physical characteristics

Item	Content providing method and apparatus
		Outer casing	Metal housing, protection class IP30
Overall dimension	160x80x22mm (excluding antennas and mounts)
		Weight (D)	About 500g

Other parameters of the eStar-3000/3500 data acquisition/data transmission terminal are shown in table 5 below:

TABLE 5 eStar-3000/3500 data acquisition/data transfer terminal other parameters

Item	Content providing method and apparatus
		Operating temperature	-40～+85C°(-40～+185℉)
Storage temperature	-40～+125C°(-40～+257℉)
		Relative humidity	95% (without coagulation)

The antenna interface of the eStar-3000/3500 data acquisition/data transmission terminal is an SMA female socket. And screwing the SMA male head of the matched antenna to the antenna interface of the data transmission terminal, and ensuring screwing so as to avoid influencing the signal quality.

The eStar-3000/3500 data acquisition/data transmission terminal adopts an industrial terminal interface, and preferably uses a power wire and a data wire of 28-16 AWG.

In order to adapt to complex application environment and improve the working stability of the system, an advanced power supply technology is adopted. The data acquisition data transmission terminal can be powered by a 12VDC/0.5A power adapter in standard configuration, and the data acquisition terminal can also be powered by a direct-current 9-36V power supply directly.

Before configuring the data acquisition terminal, the terminal and a PC for configuration need to be connected through an RS232 serial port line or an RS232-485 conversion line configured by a factory.

The eStar-3000/3500 data acquisition/data transmission terminal has two parameter configuration modes:

by configuring the software Config: all configurations are configured through corresponding items of a software interface, and the configuration mode is only suitable for the condition of conveniently configuring by using a PC. The F8L10T parameters are configured by the configuration software.

And displaying the serial port parameters of the currently opened serial port in the serial port communication setting bar, and selecting a correct value in the configuration and opening the serial port at the same time. If the right button in the serial communication setting bar shows that the serial port is closed, the serial port is opened, and otherwise, the serial port is opened.

After the equipment is powered on, the configuration software clicks the 'loading parameter', automatically loads the current configuration parameter in the equipment, and displays the current configuration parameter in the parameter area, so far, all the parameters in the eStar3000/3500 can be configured.

The details of the parameters of the eStar-3000/3500 data acquisition/data transmission terminal are as follows:

serial port configuration

The baud rate, data bit, check bit and stop bit of the communication serial port can be configured.

Default values are as follows: baud rate 115200bps, data bit 8, no check, stop bit 1.

Frequency of operation

The operating frequency of module data transmission is different from the frequency band in which different hardware modules can operate, and is roughly divided into low frequency bands (below 525 MHz). The typical working frequency range is 410M-441 MHz, and 1000KHz is a channel. Different application areas have different frequency band limits, interference factors of different channels and different error rates, so the value needs to be adjusted according to actual conditions.

The default value of the low band hardware module is 433.

Rate of flight

The selection of the rate of data in the air can be divided into 6 grades, the higher the grade is, the higher the rate is, and under the same condition, the higher the rate is, the closer the transmission distance is. Therefore, the value needs to be adjusted according to the actual application environment.

Note: once the rate is determined, all devices must be at the same rate, otherwise communication is not possible.

Default values are as follows: and 3, grade.

Transmitting power

The hardware module without PA can set the transmitting power of 5-20 dBm. The transmit power of the hardware module with PA is fixed to 30 dBm.

Default values are as follows: 20

Relay address

When the transmission distance between the nodes is too far, the parameter is set to the ID of the relay node, and the relay node can help the node to forward the data to the final destination node.

Default values are as follows: 1000

Sleep mode

When the device is in a low power mode, NONE (no sleep), TIME timed sleep) and DEEP (DEEP sleep) may be set. When the user regularly sleeps, the user needs to configure 'wakeup time' and 'sleep time'; deep sleep can only be woken up through the IO1 pin.

Default values are as follows: NONE

The wake-up time in the regular sleep mode refers to the time for keeping the device awake, which is unit ms, and when the device wakes up for more than this time, the device enters the sleep mode.

The sleep time in the timing sleep mode refers to the time for keeping the equipment in sleep in unit ms, and the equipment can be awakened and in a normal working state when the sleep time exceeds the time.

Debugging level

The log display of the debugging level control module can be divided into three debugging levels, wherein:

1. no log information is output.

2. And outputting the key log information.

3. The detailed log information is output.

4. Default values are as follows: 1.

although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.