CN110219640B - Water well calibration self-checking instrument and calibration method - Google Patents
Water well calibration self-checking instrument and calibration method Download PDFInfo
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- CN110219640B CN110219640B CN201910470638.4A CN201910470638A CN110219640B CN 110219640 B CN110219640 B CN 110219640B CN 201910470638 A CN201910470638 A CN 201910470638A CN 110219640 B CN110219640 B CN 110219640B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 328
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 128
- 239000007924 injection Substances 0.000 claims abstract description 128
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 56
- 239000003921 oil Substances 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- 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
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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 invention discloses a well calibration self-checking instrument and a calibration method, comprising the following steps: determining an initial working system according to the working parameters; obtaining an error result between the total metered water injection amount and the actual water injection amount according to the initial working system; and calibrating according to the error result and the water injection quantity threshold value. According to the invention, the working system of the water distributors can be adjusted according to the working conditions of the underground water distributors, and the water distributors are calibrated according to the error result between the total metering water injection amount and the actual water injection amount measured by the well calibration self-checking instrument, so that the construction cost can be reduced, the maintenance period can be shortened, and the productivity can be improved.
Description
Technical Field
The invention belongs to the technical field of oilfield water injection well testing, and particularly relates to a well calibration self-checking instrument and a calibration method.
Background
During the development of oil fields, a large amount of crude oil is produced, so that stratum energy is gradually lost, and the productivity is reduced. To maintain crude oil recovery efficiency, it is necessary to supplement formation energy or reduce crude oil viscosity to increase crude oil flow rate. In order to reduce the cost as much as possible, a mature water injection stimulation process has been developed over decades of research and practice.
In the actual production process, the number of oil layers of each well is often more than one, and the capability of absorbing injected water is different due to different properties of stratum pressure, porosity, permeability and the like of different oil layers. The problem that the local water content of an oil layer is too high and even water is flooded can occur due to excessive absorption of injected water, so that the problem that the water content of produced liquid of surrounding oil wells is increased too fast is caused, and the phenomenon that the oil yield is decreased too fast is caused although the liquid yield is increased. However, insufficient water absorption may result in insufficient formation energy replenishment, resulting in a failure of the formation potential to reach the maximum, and thus waste of productivity, resulting in still too fast decrease of oil production. The separate layer water injection technology is to scientifically and reasonably supplement enough energy for each oil layer according to the specific property of each oil layer, so that the yield and the yield are improved. At present, the separate-layer water injection technology realizes separate-layer water injection according to a working system, and as the working time is prolonged, the water nozzles and motors of all layers of underground water distributors are worn, so that the water injection flow measurement and adjustment precision is reduced, and meanwhile, under a high-temperature environment, the electronic components of the underground water distributors are gradually aged, so that parameter drift, even the risks of device failure and measurement and adjustment failure are possibly generated.
However, to solve the above problems, the existing technology can only overhaul and calibrate the underground multilayer water distributor, but the mode has high construction cost and long time period, and can also affect the productivity.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a water well calibration self-checking instrument and a calibration method. The technical problems to be solved by the invention are realized by the following technical scheme:
a calibration method for water injection quantity of a water well comprises the following steps:
determining an initial working system according to the working parameters;
obtaining an error result between the total metered water injection amount and the actual water injection amount according to the initial working system;
and calibrating according to the error result and the water injection quantity threshold value.
In one embodiment of the invention, determining an initial operating regime based on operating parameters includes:
and determining an initial working system according to the driving current of the motor and the first current threshold value.
In one embodiment of the invention, determining an initial operating regime from a drive current of a motor and a first current threshold comprises:
and judging the relation between the driving current of the motor and a first current threshold, if the driving current of the motor is smaller than the first current threshold, taking an original working system as the initial working system, and if the driving current of the motor is larger than the first current threshold, updating the original working system to obtain the initial working system.
In one embodiment of the invention, determining an initial operating regime based on operating parameters includes:
and determining an initial working system according to the working current of the singlechip and the second current threshold.
In one embodiment of the present invention, determining an initial operating regime according to an operating current of a single-chip microcomputer and a second current threshold value includes:
judging the relation between the working current of the single chip microcomputer and a second current threshold value, if the working current of the single chip microcomputer is smaller than the second current threshold value, taking an original working system as the initial working system, and if the working current of the single chip microcomputer is larger than the second current threshold value, updating the original working system to obtain the initial working system.
In one embodiment of the present invention, obtaining an error result between the measured total water injection amount and the actual total water injection amount according to the initial working system includes:
performing water injection operation on a plurality of water distributors according to the initial working system to obtain the total metered water injection amount and the actual water injection amount;
and obtaining the error result according to the absolute difference between the total metered water injection amount and the actual water injection amount.
In one embodiment of the present invention, the calibrating according to the error result and the water injection amount threshold value comprises:
and judging the relation between the error result and the water injection rate threshold, if the error result is smaller than the water injection rate threshold, not calibrating, and if the error result is larger than the water injection rate threshold, calibrating according to a preset method.
In one embodiment of the present invention, the calibration is performed according to a preset method, including:
and updating the initial metering standards of the water distributors at the maximum opening in sequence according to the set sequence so as to finish calibration.
In one embodiment of the invention, the updating of the initial metering criteria of the plurality of water distributors at the maximum opening in sequence according to the set sequence comprises:
acquiring initial metering standards of the water distributors;
and under the condition of a plurality of water injection flows, updating the initial metering standard of each water distributor in turn according to the set sequence, and correspondingly obtaining the updated metering standard of each water distributor.
The embodiment also provides a well calibration self-checking instrument, including:
a controller;
an electromagnetic flowmeter connected with the controller;
the regulating valve is connected with the electromagnetic flowmeter;
and the actuator is connected with the regulating valve.
The invention has the beneficial effects that:
according to the invention, the working system of the water distributors can be adjusted according to the working conditions of the underground water distributors, and the water distributors are calibrated according to the error result between the total metering water injection amount and the actual water injection amount measured by the well calibration self-checking instrument, so that the construction cost can be reduced, the maintenance period can be shortened, and the productivity can be improved.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural diagram of a well calibration self-checking instrument provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of another well calibration self-tester according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for calibrating water injection rate of a well according to an embodiment of the present invention;
fig. 4 is a flow chart of another method for calibrating water injection rate of a well according to an embodiment of the present invention.
Reference numerals illustrate:
1-water injection pipeline, 2-controller, 3-governing valve, 4-water inlet, 5-electromagnetic flowmeter, 6-executor, 7-delivery port, 8-single core armoured cable, 9-water distributor 1, 10-cross cable packer 1, 11-water distributor 2, 12-cross cable packer 2, 13-water distributor 3.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a well calibration self-checking device according to an embodiment of the present invention. The embodiment provides a well calibration self-checking appearance, includes: the electromagnetic flowmeter comprises a controller 2, a regulating valve 3, an electromagnetic flowmeter 5 and an actuator 6, wherein the electromagnetic flowmeter 5 is connected with the controller 2, the regulating valve 3 is connected with the electromagnetic flowmeter 5, and the actuator 6 is connected with the regulating valve 3.
Referring to fig. 2, the embodiment specifically describes a well calibration self-checking device with a three-layer water distributor configured underground as an example, wherein the three-layer water distributors are a first-layer water distributor 1, a second-layer water distributor 2 and a third-layer water distributor 3 respectively, specifically, the well calibration self-checking device of the embodiment passes through a water inlet ground plane water injection pipeline 1, then ground water enters an electromagnetic flowmeter through a water inlet 4, the electromagnetic flowmeter can measure water injected by the water inlet 4 and record the measurement result as the total amount of water injection, and a regulating valve 3 and an actuator 6 are matched to regulate the pressure and flow of the water injected into the three-layer water distributor underground.
The controller 2 can be connected with the water distributor 1, the water distributor 2 and the water distributor 3 respectively through single-core armored cables, and can realize the power supply and communication functions of the underground water distributor, for example, the controller can read a plurality of parameters such as the pressure, the temperature, the flow, the water nozzle opening, the motor power consumption and the power consumption of other key devices of each layer of water distributor, and can also control underground instruments, so that the functions of optimizing a water injection algorithm, reducing the amount of the key devices and the like are realized.
Further, the controller 2 of the present embodiment can distribute water to multiple layersThe device is calibrated, firstly, the total water injection quantity can be measured and metered through the electromagnetic flowmeter, namely, the total water quantity injected by the water inlet 4 in real time is monitored through the electromagnetic flowmeter, and then the total water injection quantity of each layer of water distributors is monitored through underground monitoring equipment, for example, the water quantity monitoring of each layer of water distributors in the underground can be detected through corresponding Hall position sensors, namely, when the water distributors are not injected with water, the count value of the Hall position sensors is 0 (the count value is the number of voltage pulses detected by the singlechip), when the water distributors begin to inject water, the monitoring is carried out through the Hall position sensors, and the water injection quantity corresponding to every 1000 count values is set to be 1m 3 The count value can be obtained by measuring the voltage pulse number of the Hall position sensor through the underground singlechip, then the singlechip feeds back the water injection quantity of each layer of water distributors to the controller 2, so as to obtain the water injection sum of each layer of water distributors, namely the actual water injection total quantity, when the abrasion condition of the underground water distributors is serious, the monitored actual water injection total quantity is larger than the measured water injection total quantity, when the difference value between the actual water injection total quantity and the measured water injection total quantity is larger than a certain threshold value, the flow monitoring standard of each layer of water distributors is required to be calibrated, specifically, the water mouth of one layer of water distributors is sequentially opened, the water mouth opening degree and the water injection pressure of the layer of water distributors are unchanged, other water distributors are simultaneously closed, the actual measured water injection quantity of the layer of water distributors is compared with the water injection quantity metered by the electromagnetic flowmeter, if the error exceeds the set threshold value, the flow metering standard of the layer of the water distributors is required to be calibrated, the water mouth of the layer of water distributors is firstly opened to be the maximum, the water mouth of the layer of water distributors is required to be calibrated, and the water well self-check meter is calibrated through controlling the regulating valve and the actuator to be injected in a constant flow mode according to a plurality of steps, for example, the water quantity is sequentially different in order of 0m 3 /d、5m 3 /d、10m 3 Three flow step injections at 0m 3 /d、5m 3 The error result does not exceed the threshold value at/d, and the flow rate regulated by the regulating valve is 10m 3 When the total water injection amount detected by the electromagnetic flowmeter is 1m 3 The metering standard of the layer of water distributors is 1000 count values which correspond to 1m 3 The single chip microcomputer detects that when the count value is 900, the layer is matchedThe actual water injection total amount of the water device reaches 1m 3 The flow rate of the water distributor at the layer is 10m 3 The metering standard at/d is calibrated, i.e. the layer of water distributors is at a flow rate of 10m 3 When 900 count values are detected, the corresponding actual water injection total amount is 1m 3 The recalibration scheme is fed back to the controller, so that the controller can acquire the state of each water distributor in time, the water distributors of the layer are calibrated through the calibration scheme of the step flow, and the calibration schemes of other water distributors are similar to the above, and are not repeated here.
The well calibration self-checking instrument of the embodiment can also calibrate the opening of the water tap of each layer of underground water distributors regularly, and prevent the opening control errors caused by long-time working water tap abrasion and the like. The controller of the well calibrator in this embodiment can control the water tap state of each layer of water distributors in sequence, adjust the water tap state to be completely closed and completely opened, collect opening values under two states, calibrate the water tap opening value to be 0% in the completely closed state and to be 100% in the completely opened state, so as to improve the control accuracy of the water tap opening. For example, in the case where the opening degree of the single-layer water nozzle and the water injection pressure are unchanged, the actual measured injection flow rate of the layer water distributor and the water injection rate measured by the electromagnetic flowmeter are compared, and if the error exceeds a set threshold value, for example, if the error exceeds 3%, it is determined that the water nozzle of the layer water distributor has worn, and recalibration is required. The calibration method comprises the following steps: the water nozzle of the layer of water distributor is completely closed, (a limit switch provides a controller with a complete closing signal), and the count value recorded by the water nozzle of the singlechip is cleared, namely the corresponding count value is 0; and then the water nozzle is completely opened (a limit switch provides a complete opening signal), the single chip microcomputer measures the number of voltage pulses output by the Hall position sensor in the closing-to-opening process, if the count value detected when the water nozzle is completely opened is 100, 100 is taken as a calibrated count value, namely, the count value detected when the water nozzle is completely opened from closing is 100, namely, the count value is 0, the water nozzle is in a complete closing state, and when the count value is 100, the water nozzle opening after calibration is in a complete opening state, the calibrated water nozzle opening meets the linear relation, and the re-standard detection of the water nozzle opening is completed by processing the new count values in the two states.
The water well calibration self-checking instrument adjusts the working state of the motor by detecting whether the driving current of the motor corresponding to each water distributor is abnormal or not. In the working process of the motor, the singlechip monitors the driving current in real time, normally for example, about 10-20mA, if the monitored current continuously increases to more than 30mA, the motor load is judged to be increased, and the situation is possibly caused by the water nozzle action meeting resistance, so that the driving current of the current can be fed back to the controller, the controller controls and starts a peristaltic regulation program, namely, if the motor is in positive rotation meeting resistance, the motor can be regulated to rotate reversely for one circle, then the motor can continue to rotate positively for one circle, the operation is repeatedly performed until the driving current is recovered to a normal range, and then the follow-up action is performed. The operation can prevent the motor from being blocked due to the blocking of the water nozzle of the water distributor, and prolong the service life of the motor. By optimizing the driving current of the motor of the underground water distributor, overload operation is avoided, and the service life of the motor is prolonged.
According to the water well calibration self-checking instrument, the working current of the singlechip corresponding to each water distributor is detected to be abnormal, and the working state of the singlechip is adjusted. For example, if the normal working current of the singlechip is about 10mA, the controller monitors the power supply current of the singlechip in real time, if the current exceeds 20mA, the controller controls the singlechip to start intermittent working protection measures, namely, after the water nozzle is adjusted to a target position, the power supply of the singlechip is cut off, the singlechip is awakened once every 10 seconds, and data acquisition is carried out. The clock frequency of the singlechip of the underground water distributor is optimized, so that the use power consumption of the singlechip is reduced.
The service life of the water nozzle can be prolonged by optimizing the measuring and adjusting frequency of the underground water distributor, for example, the water distributor is initially set to be measured and adjusted once every 3 days, the water distributor is changed to be measured and adjusted once every 10 days, and the service life of the water nozzle is prolonged by prolonging the measuring and adjusting frequency.
The embodiment can also perform fault early warning in advance by collecting information, repair fault hidden dangers in advance and reduce operation and maintenance cost. For example, the power supply current of the singlechip is collected, and if the controller monitors that the power supply current exceeds a set threshold range, the controller controls the alarm to alarm, so that the purpose of early warning faults is achieved.
Example two
Referring to fig. 3, fig. 3 is a flow chart of a method for calibrating water injection rate of a water well according to an embodiment of the invention. On the basis of the embodiment, the present embodiment uses the well calibration self-checking instrument provided by the present embodiment to calibrate each layer of underground water distributors, and the method for calibrating the water injection quantity of the well includes:
step 1, determining an initial working system according to working parameters;
step 2, obtaining an error result between the total metered water injection amount and the actual water injection amount according to the initial working system;
and 3, calibrating according to the error result and the water injection quantity threshold value.
In this embodiment, whether the working parameters need to be adjusted is determined by detecting whether the working parameters are abnormal, for example, whether the driving current of the motor or the working current of the singlechip is abnormal, when the adjustment is needed, the working system of each layer of water distributors needs to be re-optimized after the adjustment to obtain an optimized initial working system, wherein the working system sets the water injection amount of each layer of water distributors according to the working task, for example, the three layers of water distributors in fig. 2, and the working parameters need to be adjusted for 25m 24 hours before the adjustment of the working parameters 3 The water injection rate of the water distributor 1 is 10m 3 The water injection rate of the water distributor 2 required to be completed is 5m 3 The water injection rate required to be completed by the water distributor 3 is 10m 3 When the working parameters are adjusted, the working system is required to be re-formulated, the re-formulated working system is the initial working system, then the water injection operation is carried out on each layer of water distributors according to the initial working system, the electromagnetic flowmeter of the well calibration self-checking instrument is used for measuring the total water injection amount during water injection, the voltage pulse number of each layer of water distributors is monitored through the Hall position sensor, the corresponding count value is obtained, the water injection amount of each layer of water distributors is determined through the count value, and the count value of each layer of water distributors is reversely usedThe water injection quantity of each layer of water distributors is determined by the controller, the sum is the actual water injection quantity, the measured water injection quantity is compared with the actual water injection quantity to obtain an error result, the error result is compared with a water injection quantity threshold value to determine whether the water distributors of each layer need to be calibrated, the water injection quantity threshold value is suitable for judging whether the error result exceeds a threshold value of a set range, the water injection quantity threshold value can be set according to the actual situation, and the water injection quantity threshold value is not set in the embodiment.
Specifically, the working parameter of the embodiment may be, for example, a driving current of the motor, and the initial working system is determined by detecting the driving current of the motor and a first current threshold, where the first current threshold is used to determine whether the driving current of the motor exceeds a threshold in a set range, and the first current threshold may be set according to an actual situation, and is not set in the embodiment.
Further, judging the relation between the driving current of the motor and the first current threshold, if the driving current of the motor is smaller than the first current threshold, taking an original working system as an initial working system, wherein the original working system is the working system at the beginning of each layer of water distributors, and if the driving current of the motor is larger than the first current threshold, updating the original working system to obtain the initial working system.
For example, the driving current of the motor in the normal state is 10-20mA, the first current threshold is set to 30mA, if the driving current of the motor corresponding to the water distributor 1 is detected to be greater than 30mA, the motor load is judged to be increased, the driving current needs to be adjusted to the normal working state, if the driving current is caused by the water nozzle action and resistance, the driving current of the current can be fed back to the controller, the controller controls to start the peristaltic adjusting program, namely, if the motor is in positive rotation and resistance, the motor can be adjusted to rotate for one turn, the positive rotation is continued for one turn, the operation is repeatedly performed until the driving current is recovered to the normal range, the follow-up action is performed, after the operation, the working system of the water distributor needs to be adjusted, and 25m needs to be completed 24 hours before the working parameter is not adjusted 3 The water injection rate of the water distributor 1 is 10m 3 The water injection rate of the water distributor 2 required to be completed is 5m 3 The water injection rate required to be completed by the water distributor 3 is 10m 3 When the water distributor 1 is adjusted, the working capacity of the motor needs to be reduced in order to maintain the working life of the motor, the working system needs to be optimized again, and the water injection amount of the water distributor 1 is reduced, for example, the water injection amount required to be completed by the water distributor 1 can be adjusted to be 6m 3 The water injection rate required to be completed by the water distributor 2 is 7m 3 The water injection rate of the water distributor 3 to be completed is 12m 3 Thereby completing 25m in 24 hours 3 Is a water injection amount. The working system can be adjusted according to the actual situation, so that the working task can be completed, and the embodiment is not limited in detail.
Specifically, the working parameter of the embodiment may be, for example, a working current of the single-chip microcomputer, an initial working system is determined by detecting the working current of the single-chip microcomputer and a second current threshold, where the second current threshold is used to determine whether the working current of the single-chip microcomputer exceeds a threshold in a set range, and the second current threshold may be set according to an actual situation, and is not set in this embodiment.
For example, the working current of the singlechip in the normal state is 10mA, the second current threshold is set to 20mA, if the working current of the singlechip corresponding to the water distributor 1 is detected to be greater than 20mA, the controller controls the singlechip to start intermittent working protection measures, namely, after the water nozzle is adjusted to the target position, the power supply of the singlechip is cut off, the singlechip is awakened once every 10 seconds for data acquisition, and when the singlechip starts the intermittent working mode, the working system of the water distributor needs to be adjusted, and 25m of working parameters need to be completed 24 hours before the working parameters are not adjusted 3 The water injection rate of the water distributor 1 is 10m 3 The water injection rate of the water distributor 2 required to be completed is 5m 3 The water injection rate required to be completed by the water distributor 3 is 10m 3 When the water distributor 1 is adjusted, the workload of the singlechip needs to be reduced in order to ensure the service life of the singlechip, the working system needs to be optimized again, and the water injection amount of the water distributor 1 is reduced, for example, the water injection amount required to be completed by the water distributor 1 can be adjusted to be 7m 3 The water injection rate required to be completed by the water distributor 2 is 8m 3 The water injection rate required to be completed by the water distributor 3 is 10m 3 Thereby completing 25m in 24 hours 3 Is a water injection amount. The working system can be adjusted according to the actual situation, so that the working task can be completed, and the embodiment is not limited in detail.
Further, obtaining an error result between the total metered water injection amount and the actual water injection amount according to the initial working system specifically may include performing water injection operation to a plurality of water distributors according to the initial working system to obtain the total metered water injection amount and the actual water injection amount; and obtaining an error result according to the absolute difference between the total metered water injection amount and the actual water injection amount.
Further, calibrating according to the error result and the water injection quantity threshold value comprises the following steps: judging the relation between the error result and the water injection rate threshold, if the error result is smaller than the water injection rate threshold, not calibrating, if the error result is larger than the water injection rate threshold, calibrating according to a preset method, namely updating initial metering standards of a plurality of water distributors in maximum openings in sequence according to a set sequence to finish calibration, wherein the set sequence can be from a first water distributor to a last water distributor, from the last water distributor to the first water distributor, or other sequences, and the initial metering standards are metering values corresponding to the water distributors when a certain amount of water is injected into the water nozzles of the water distributors in maximum openings, for example, the water distributors flow through 1m 3 When the corresponding count value is 1000 and the water nozzle is excessively worn, the actual water quantity injected is larger than the water quantity obtained according to the initial metering standard under a certain metering value condition, so that the initial metering standard needs to be updated, for example, the initial metering standard is: the water quantity corresponding to the count value of 1000 is 1m 3 The updated metering criteria are: the water quantity corresponding to the count value of 900 is 1m 3 。
Further, updating the initial metering standards of the water distributors at the maximum opening in sequence according to the set sequence may specifically include: acquiring initial metering standards of a plurality of water distributors; under the condition of a plurality of water injection flows, the initial metering standard of each water distributor is updated in sequence according to a set sequence, and the updated metering standard of each water distributor is correspondingly obtained. And opening the water distributors of each layer in turn, and calibrating each water distributor under different flow conditions, thereby completing the calibration of each water nozzle.
For example, the water nozzles of the water distributors are opened according to a set sequence, the calibration process can be, for example, firstly, the water nozzle of the water distributor of the layer is opened to the maximum, the water distributors of other layers are closed, the water well calibration self-checking instrument sequentially injects water of various different flow steps in a constant flow mode by controlling the regulating valve and the actuator, for example, the water quantity of the water distributor is sequentially measured according to 0m 3 /d、5m 3 /d、10m 3 Three flow step injections at 0m 3 /d、5m 3 The error result does not exceed the threshold value at/d, and the flow rate regulated by the regulating valve is 10m 3 When the total water injection amount detected by the electromagnetic flowmeter is 1m 3 The metering standard of the layer of water distributors is 1000 count values which correspond to 1m 3 When the single chip detects that the actual water injection total amount of the layer of water distributor reaches 1m when the count value is 900 3 The flow rate of the water distributor at the layer is 10m 3 The metering standard at/d is calibrated, i.e. the layer of water distributors is at a flow rate of 10m 3 When 900 count values are detected, the corresponding actual water injection total amount is 1m 3 The recalibration scheme is fed back to the controller, so that the controller can acquire the state of each water distributor in time, the water distributors of the layer are calibrated through the calibration scheme of the step flow, and the calibration schemes of other water distributors are similar to the above, and are not repeated here.
Therefore, the controller of this embodiment may include a determining module, an error calculating module, and a calibration module, where the determining module is configured to determine an initial working system according to a working parameter, the error calculating module is configured to obtain an error result between the total metered water injection amount and the actual water injection amount according to the initial working system, and the calibration module is configured to calibrate according to the error result and the water injection amount threshold, and its implementation principle and technical effects are similar to those of the above calibration method, which are not described herein again.
In order to better explain the scheme of this embodiment, please refer to fig. 3, firstly, power-up the well calibration self-checking device to make it work, then the self-checking device reads the original working system and performs self-checking to detect whether the related working parameters of the water distributor are normal, if so, the original working system is used as the initial working system and executed according to the original working system, if not, the abnormal working parameters are optimized and adjusted, after the adjustment, the working system is updated to the initial working system and executed according to the initial working system, then the error result between the total amount of metered water injection measured by the electromagnetic flowmeter and the actual total amount of water injection is compared, if the error result does not exceed the design index (namely the water injection threshold), the calibration operation is not needed, if the error result exceeds the design index, the calibration operation is needed, and the calibration is performed again, and the self-learning operation can be performed.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
It will be apparent to those skilled in the art that embodiments of the present application may be provided as a method, apparatus (device), or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects all generally referred to herein as a "module" or "system. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. A computer program may be stored/distributed on a suitable medium supplied together with or as part of other hardware, but may also take other forms, such as via the Internet or other wired or wireless telecommunication systems.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (5)
1. The method for calibrating the water injection quantity of the water well is characterized by comprising the following steps of:
determining an initial operating regime based on the operating parameters, comprising: determining an initial working system according to the driving current of the motor and a first current threshold value, judging the relation between the driving current of the motor and the first current threshold value, taking the initial working system as the initial working system if the driving current of the motor is smaller than the first current threshold value, and updating the initial working system to obtain the initial working system if the driving current of the motor is larger than the first current threshold value;
obtaining an error result between the total metered water injection amount and the actual water injection amount according to the initial working system, wherein the error result comprises the following steps: performing water injection operation on a plurality of water distributors according to the initial working system to obtain the total metered water injection amount and the actual water injection amount; obtaining the error result according to the absolute difference between the total metered water injection amount and the actual water injection amount;
calibrating according to the error result and the water injection quantity threshold value, including: judging the relation between the error result and the water injection rate threshold, if the error result is smaller than the water injection rate threshold, not calibrating, and if the error result is larger than the water injection rate threshold, calibrating according to a preset method; and updating the initial metering standards of the water distributors at the maximum opening in sequence according to a set sequence to finish calibration.
2. The method of calibrating according to claim 1, wherein determining an initial operating regime based on the operating parameters further comprises:
and determining an initial working system according to the working current of the singlechip and the second current threshold.
3. The method of calibrating according to claim 2, wherein determining an initial operating regime based on the operating current of the single-chip microcomputer and the second current threshold comprises:
judging the relation between the working current of the single chip microcomputer and a second current threshold value, if the working current of the single chip microcomputer is smaller than the second current threshold value, taking an original working system as the initial working system, and if the working current of the single chip microcomputer is larger than the second current threshold value, updating the original working system to obtain the initial working system.
4. Calibration method according to claim 1, characterized in that the updating of the initial metering criteria of the several water distributors at the maximum opening in sequence according to a set sequence comprises:
acquiring initial metering standards of the water distributors;
and under the condition of a plurality of water injection flows, updating the initial metering standard of each water distributor in turn according to the set sequence, and correspondingly obtaining the updated metering standard of each water distributor.
5. A water well calibration self-checking instrument, applied to the method for calibrating water injection rate of a water well according to any one of claims 1 to 4, comprising:
a controller;
an electromagnetic flowmeter connected with the controller;
the regulating valve is connected with the electromagnetic flowmeter;
and the actuator is connected with the regulating valve.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061985A (en) * | 2014-07-03 | 2014-09-24 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Riverway pressure type water level indicator verification and calibration method |
| CN204831484U (en) * | 2015-04-30 | 2015-12-02 | 中国石油天然气股份有限公司 | Annotate online calibrating device of water flow meter |
| CN108104781A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of intelligence dispensing standard scale downhole flow scaling method |
| CN108222902A (en) * | 2017-10-24 | 2018-06-29 | 中国石油化工股份有限公司 | Intelligent water injection device and method |
| CN108825186A (en) * | 2018-09-11 | 2018-11-16 | 荆州市明德科技有限公司 | A kind of water injection rate automatic control device and method |
| CN109211341A (en) * | 2018-10-23 | 2019-01-15 | 荆州市明德科技有限公司 | Can on-line automatic calibration injection flow self-con-tained unit and scaling method |
-
2019
- 2019-05-31 CN CN201910470638.4A patent/CN110219640B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061985A (en) * | 2014-07-03 | 2014-09-24 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Riverway pressure type water level indicator verification and calibration method |
| CN204831484U (en) * | 2015-04-30 | 2015-12-02 | 中国石油天然气股份有限公司 | Annotate online calibrating device of water flow meter |
| CN108222902A (en) * | 2017-10-24 | 2018-06-29 | 中国石油化工股份有限公司 | Intelligent water injection device and method |
| CN108104781A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of intelligence dispensing standard scale downhole flow scaling method |
| CN108825186A (en) * | 2018-09-11 | 2018-11-16 | 荆州市明德科技有限公司 | A kind of water injection rate automatic control device and method |
| CN109211341A (en) * | 2018-10-23 | 2019-01-15 | 荆州市明德科技有限公司 | Can on-line automatic calibration injection flow self-con-tained unit and scaling method |
Non-Patent Citations (1)
| Title |
|---|
| 扶余油田提高注水效果配套技术研究;张坤;《中国优秀硕士学位论文全文数据库 工程科技I辑》(第第12期期);B019-168 * |
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