CN111852441A - Oil well collapse judgment method and equipment - Google Patents
Oil well collapse judgment method and equipment Download PDFInfo
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- CN111852441A CN111852441A CN201910357309.9A CN201910357309A CN111852441A CN 111852441 A CN111852441 A CN 111852441A CN 201910357309 A CN201910357309 A CN 201910357309A CN 111852441 A CN111852441 A CN 111852441A
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- 239000003129 oil well Substances 0.000 title claims abstract description 226
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- 238000011161 development Methods 0.000 description 4
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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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- 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
- E21B47/06—Measuring temperature or pressure
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Abstract
The embodiment of the invention provides a method and equipment for judging collapse of an oil well, wherein the method comprises the following steps: acquiring the oil pressure and the liquid yield of a target oil well in a preset time period; determining the descending speed of the oil pressure in a preset time period and the decreasing rate of the liquid production amount in the preset time period; judging whether the target oil well collapses or not according to the descending speed of the oil pressure in a preset time period, the decreasing rate of the liquid production capacity in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production capacity; and if the collapse occurs, sending alarm information to a first preset terminal, wherein the alarm information carries the identity of the target oil well. The method provided by the embodiment can find the oil well collapse sand burying condition in time, inform relevant personnel of processing, obtain accurate judgment results according to the oil pressure and the liquid production amount, have strong operability, and solve the problems that the existing oil well collapse judgment needs the relevant personnel to enter the oil well for operation, the period is long and the risk is large.
Description
Technical Field
The embodiment of the invention relates to the technical field of oil extraction in oil fields, in particular to a method and equipment for judging collapse of an oil well.
Background
With the development of social economy and the improvement of living standard of people, the demand of people for petroleum is increasing day by day. Petroleum is not only an important strategic material, but also is closely related to the development of national economy. The role of oil field exploitation in economic construction is also gradually highlighted and becomes an indispensable part.
The existing part of carbonate rock oil wells have long open hole sections, and the well wall collapses due to the comprehensive action of external factors and internal factors of the oil wells, wherein the internal factors comprise reservoir properties, reservoir scales, regional ground stress and the like, and the external factors comprise a well completion mode, a reservoir transformation measure and the like. The collapse of the oil well causes the reduction of the dominant channel of the oil well fluid and even the burying of a production layer, thereby seriously restricting the production of the oil well. The existing oil well collapse judgment often needs to detect the bottom depth of an oil well so as to make a judgment on whether the oil well collapses or not by comparing with the bottom depth of the oil well in the early stage.
However, the existing oil well collapse judgment needs related personnel to enter the oil well for operation, and has long period and high risk.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for judging oil well collapse, which are used for solving the problems that related personnel are required to enter an oil well for operation in the conventional oil well collapse judgment, the period is long and the risk is high.
In a first aspect, an embodiment of the present invention provides a method for determining oil well collapse, including:
acquiring the oil pressure and the liquid yield of a target oil well in a preset time period;
determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production amount in the preset time period;
judging whether the target oil well collapses or not according to the descending speed of the oil pressure in the preset time period, the decreasing rate of the liquid production in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production;
and if the target oil well collapses, sending alarm information to a first preset terminal, wherein the alarm information carries the identity of the target oil well.
In one possible design, the determining whether the target oil well has collapsed based on a decreasing rate of the oil pressure in the preset time period, a decreasing rate of the liquid production in the preset time period, and a decreasing rate of the preset oil pressure and the preset liquid production, includes:
obtaining a descending speed acceleration percentage of the descending speed of the oil pressure in the preset time period compared with the descending speed of the preset oil pressure, and obtaining a descending rate increase percentage of the liquid production rate in the preset time period compared with the preset liquid production rate;
If the descending speed acceleration percentage is within a first preset threshold range and the descending rate increase percentage is within a second preset threshold range, judging that the target oil well collapses to a first degree;
and if the descending speed acceleration percentage is within a third preset threshold range and the descending rate increase percentage is within a fourth preset threshold range, judging that the target oil well collapses to a second degree.
In one possible design, the method further includes:
if the target oil well collapses, acquiring the oil pressure of the target oil well in a preset recovery time period after the well is closed, and acquiring the oil pressure of the target oil well in a preset well opening time period after the well is opened in the preset recovery time period;
and if the oil pressure of the target oil well in the preset recovery time period is recovered to a first preset oil pressure range, the oil pressure of the target oil well in the preset well-opening time period is reduced to a second preset oil pressure range, and the liquid yield of the target oil well in the preset well-opening time period is not more than a preset liquid yield threshold value, the step of sending alarm information to a first preset terminal is executed.
In one possible design, the method further includes:
Generating a first fitting curve according to the oil pressure of the target oil well in a preset time period and the preset time period, wherein the first fitting curve is used for representing a linear relation between the oil pressure of the target oil well in the preset time period and the preset time period;
and generating a second fitting curve according to the liquid production amount of the target oil well in the preset time period and the preset time period, wherein the second fitting curve is used for expressing the linear relation between the liquid production amount of the target oil well in the preset time period and the preset time period.
In one possible design, the method further includes:
and generating a collapse test report of the target oil well, and sending the collapse test report to a second preset terminal, wherein the collapse test report carries a collapse judgment result of the target oil well.
In a second aspect, an embodiment of the present invention provides an oil well collapse judging device, including:
the data acquisition module is used for acquiring the oil pressure and the liquid yield of the target oil well in a preset time period;
the data processing module is used for determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production amount in the preset time period;
The collapse judging module is used for judging whether the target oil well collapses or not according to the descending speed of the oil pressure in the preset time period, the decreasing rate of the liquid production capacity in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production capacity;
and the collapse alarm module is used for sending alarm information to a first preset terminal if the target oil well collapses, and the alarm information carries the identity of the target oil well.
In one possible design, the collapse determining module includes:
the data processing unit is used for obtaining the descending speed acceleration percentage of the descending speed of the oil pressure in the preset time period compared with the descending speed of the preset oil pressure and obtaining the descending rate increase percentage of the liquid production rate in the preset time period compared with the descending rate of the liquid production rate;
the first collapse judging unit is used for judging that the target oil well collapses to a first degree if the descending speed acceleration percentage is within a first preset threshold range and the decrement rate rising percentage is within a second preset threshold range;
and the second collapse judging unit is used for judging that the target oil well collapses to a second degree if the descending speed acceleration percentage is within a third preset threshold range and the decrement rate increase percentage is within a fourth preset threshold range.
In one possible design, the collapse alarm module is further configured to, if the target oil well collapses, obtain an oil pressure of the target oil well in a preset recovery time period after the shut-in of the well, and obtain an oil pressure of the target oil well in a preset well-in time period after the start of the well in the preset recovery time period;
and if the oil pressure of the target oil well in the preset recovery time period is recovered to a first preset oil pressure range, the oil pressure of the target oil well in the preset well-opening time period is reduced to a second preset oil pressure range, and the liquid yield of the target oil well in the preset well-opening time period is not more than a preset liquid yield threshold value, the step of sending alarm information to a first preset terminal is executed.
In one possible design, the above apparatus further includes:
the first fitting curve generating module is used for generating a first fitting curve according to the oil pressure of the target oil well in a preset time period and the preset time period, and the first fitting curve is used for representing the linear relation between the oil pressure of the target oil well in the preset time period and the preset time period;
and the second fitting curve generating module is used for generating a second fitting curve according to the liquid production amount of the target oil well in a preset time period and the preset time period, and the second fitting curve is used for representing the linear relation between the liquid production amount of the target oil well in the preset time period and the preset time period.
In one possible design, the apparatus further includes:
and the collapse test report generating module is used for generating a collapse test report of the target oil well and sending the collapse test report to a second preset terminal, wherein the collapse test report carries a collapse judgment result of the target oil well.
In a third aspect, an embodiment of the present invention provides an oil well collapse judging device, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the well collapse determination method as described above in the first aspect and in various possible designs of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and when a processor executes the computer-executable instructions, the method for determining oil well collapse is implemented as described in the first aspect and various possible designs of the first aspect.
The method and the device for judging the collapse of the oil well provided by the embodiment can further determine the descending speed of the oil pressure in the preset time period by acquiring the oil pressure and the liquid production amount of the target oil well in the preset time period, and the decreasing rate of the liquid production rate in the preset time period, and then according to the determined oil pressure decreasing speed and the decreasing rate of the liquid production rate, and presetting the oil pressure reduction speed and the liquid production rate, judging whether the target oil well collapses, if so, sending alarm information to a first preset terminal, the alarm information carries the identity of the target oil well, can find the sand burying condition of the oil well in time and inform related personnel to process, meanwhile, the judgment result obtained according to the oil pressure and the liquid production amount is accurate, the operability is strong, and the problems that related personnel are required to enter the oil well for operation in the existing oil well collapse judgment, the period is long and the risk is large are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an application scenario diagram of a method for determining oil well collapse according to an embodiment of the present invention;
FIG. 2 is a first schematic flow chart of a method for determining oil well collapse according to an embodiment of the present invention;
FIG. 3 is a second schematic flow chart of a method for determining oil well collapse according to an embodiment of the present invention;
fig. 4 is a first schematic structural diagram of an oil well collapse determination device provided by an embodiment of the invention;
fig. 5 is a schematic structural diagram of an oil well collapse determination device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware structure of the oil well collapse determination device according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
With the development of social economy and the improvement of living standard of people, the demand of people for petroleum is increasing day by day. Petroleum is not only an important strategic material, but also is closely related to the development of national economy. The role of oil field exploitation in economic construction is also gradually highlighted and becomes an indispensable part. The existing part of carbonate rock oil wells have long open hole sections, and the well wall collapses due to the comprehensive action of external factors and internal factors of the oil wells, wherein the internal factors comprise reservoir properties, reservoir scales, regional ground stress and the like, and the external factors comprise a well completion mode, a reservoir transformation measure and the like. The collapse of the oil well causes the reduction of the dominant channel of the oil well fluid and even the burying of a production layer, thereby seriously restricting the production of the oil well. The existing oil well collapse judgment often needs to detect the bottom depth of an oil well so as to make a judgment on whether the oil well collapses or not by comparing with the bottom depth of the oil well in the early stage. However, the existing oil well collapse judgment needs related personnel to enter the oil well for operation, and has long period and high risk.
Therefore, in view of the above-mentioned problems, the present invention provides a method for determining a collapse of an oil well, which comprises obtaining an oil pressure and a fluid production rate of a target oil well in a preset time period, further determining a lowering speed of the oil pressure in the preset time period, and the decreasing rate of the liquid production rate in the preset time period, and then according to the determined oil pressure decreasing speed and the decreasing rate of the liquid production rate, and presetting the oil pressure reduction speed and the liquid production rate, judging whether the target oil well collapses, if so, sending alarm information to a first preset terminal, the alarm information carries the identity of the target oil well, can find the sand burying condition of the oil well in time and inform related personnel to process, meanwhile, the judgment result obtained according to the oil pressure and the liquid production amount is accurate, the operability is strong, and the problems that related personnel are required to enter the oil well for operation in the existing oil well collapse judgment, the period is long and the risk is large are solved.
Fig. 1 is an application scenario diagram of the method for judging oil well collapse according to the present invention. As shown in fig. 1, a terminal 101 may obtain an oil pressure and a fluid yield of a target oil well in a preset time period, may determine a decreasing speed of the oil pressure in the preset time period, and a decreasing rate of the fluid yield in the preset time period, and may also determine whether the target oil well collapses according to the decreasing speed of the oil pressure in the preset time period, the decreasing rate of the fluid yield in the preset time period, and the decreasing rate of the preset oil pressure and the decreasing rate of the preset fluid yield, and if the target oil well collapses, send an alarm message to a first preset terminal 102, where the alarm message carries an identity of the target oil well.
The terminal 101 may be a computer, a mobile phone, or the like, can perform information interaction with other terminals, and has functions of data acquisition, processing, and the like.
Fig. 2 is a flowchart illustrating a first method for determining oil well collapse according to an embodiment of the present invention, where an execution main body of the embodiment may be the terminal 101 in the embodiment shown in fig. 1, or may be other devices, such as a processor, a server, and the like, and the embodiment is not limited herein. As shown in fig. 2, the method may include:
s201, acquiring oil pressure and liquid production of a target oil well in a preset time period.
Here, taking the terminal as an execution subject as an example, the terminal may obtain the oil pressure and the liquid production rate of the target oil well in a preset time period in real time, or may obtain the oil pressure and the liquid production rate of the target oil well in the preset time period according to the obtaining instruction after receiving the obtaining instruction, where a specific obtaining manner may be set according to an actual situation. Wherein the target oil well is one or more oil wells which need to be subjected to collapse judgment. The preset time period can be set according to actual conditions, such as obtaining the oil pressure and the liquid production of the target oil well in the last three years. The oil pressure refers to the residual pressure of crude oil flowing from the bottom to the top of the well, and can be tested by a pressure gauge, and the terminal acquires the data tested by the pressure gauge so as to obtain the oil pressure of the target oil well. The size of the liquid production amount depends on the physical properties of stratum and fluid, is related to the water content of an oil well when oil-water two-phase flow occurs, is related to the water content and the bottom hole pressure when oil-gas-water three-phase flow occurs at the bottom of the well, can be tested by a flowmeter, and the terminal acquires the data tested by the flowmeter so as to obtain the liquid production amount of the target oil well.
Optionally, the method further includes:
generating a first fitting curve according to the oil pressure of the target oil well in a preset time period and the preset time period, wherein the first fitting curve is used for representing a linear relation between the oil pressure of the target oil well in the preset time period and the preset time period;
and generating a second fitting curve according to the liquid production amount of the target oil well in the preset time period and the preset time period, wherein the second fitting curve is used for expressing the linear relation between the liquid production amount of the target oil well in the preset time period and the preset time period.
Specifically, the oil pressure and the daily production fluid of the oil well can be acquired, data such as a choke, the daily production oil, and the water content can be acquired, and the line graph is generated by setting the time as the abscissa and the data such as the oil pressure and the daily production fluid as the ordinate.
S202, determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production amount in the preset time period.
Here, the terminal may further determine a rate of decrease of the oil pressure in a preset time period and a rate of decrease of the liquid production amount in the preset time period based on the first fitted curve and the second fitted curve.
Specifically, the terminal may display the generated first fitting curve and the second fitting curve, and determine a decreasing speed of the oil pressure in a preset time period and a decreasing rate of the liquid production amount in the preset time period according to a curve included angle and a stage slope.
S203, judging whether the target oil well collapses or not according to the descending speed of the oil pressure in the preset time period, the decreasing rate of the liquid production in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production.
Wherein, predetermine oil pressure descent speed and predetermine the liquid production decrement rate and can set up according to actual conditions.
Optionally, the determining whether the target oil well collapses according to the decrease rate of the oil pressure in the preset time period, the decrease rate of the liquid production in the preset time period, and the decrease rate of the preset oil pressure and the preset liquid production, includes:
obtaining a descending speed acceleration percentage of the descending speed of the oil pressure in the preset time period compared with the descending speed of the preset oil pressure, and obtaining a descending rate increase percentage of the liquid production rate in the preset time period compared with the preset liquid production rate;
If the descending speed acceleration percentage is within a first preset threshold range and the descending rate increase percentage is within a second preset threshold range, judging that the target oil well collapses to a first degree;
and if the descending speed acceleration percentage is within a third preset threshold range and the descending rate increase percentage is within a fourth preset threshold range, judging that the target oil well collapses to a second degree.
The first preset threshold range may be set according to actual conditions, and similarly, the second preset threshold range may also be set according to actual conditions, for example, the first preset threshold range is set to be 6% to 9%, the second preset threshold range is set to be 15% to 20%, the decrease speed of the oil pressure in the preset time period is increased by a percentage within a range of 6% to 9% compared with the decrease speed of the preset oil pressure, and the decrease rate of the liquid production amount in the preset time period is increased by a percentage within a range of 15% to 20% compared with the decrease rate of the preset liquid production amount, which indicates that the decrease speeds of the oil pressure and the daily liquid production are significantly increased, and it is determined that the target oil well has collapsed to the first degree.
Similarly, the third preset threshold range and the fourth preset threshold range may be set according to actual conditions, and the lower limit of the third preset threshold range is higher than the upper limit of the first preset threshold range, and the lower limit of the fourth preset threshold range is higher than the upper limit of the second preset threshold range. For example, the third preset threshold range is set to 90% -100%, the fourth preset threshold range is set to 90% -100%, the descending speed of the oil pressure in the preset time period is increased by 90% -100% compared with the descending speed of the preset oil pressure, and the decreasing rate of the liquid production rate in the preset time period is increased by 90% -100% compared with the decreasing rate of the preset liquid production rate, which indicates that the oil pressure is decreased in a cliff-type manner, and then the oil pressure and the liquid production rate are rapidly decreased until the blowout is stopped, and no gas and liquid are produced, so that the target oil well is determined to be collapsed to a second degree, and the collapse severity of the second degree is higher than that of the first degree.
And S204, if the target oil well collapses, sending alarm information to a first preset terminal, wherein the alarm information carries the identity of the target oil well.
Here, the first preset terminal may be set according to actual conditions, for example, a mobile phone of a relevant person is set, and if the terminal determines that the oil well collapses, the first preset terminal immediately sends alarm information to the first preset terminal to inform the relevant person to process in time, so as to avoid that a production zone is buried and restrict production of the oil well. The identity of the target oil well can be information which can identify the identity of the oil well, such as the name, the number and the like of the oil well.
And if the target oil well does not collapse, re-executing the step of acquiring the oil pressure and the liquid production of the target oil well in the preset time period, entering the next period, and continuously judging whether the oil well collapses.
The method for determining oil well collapse according to this embodiment further determines the descending speed of the oil pressure in the preset time period by obtaining the oil pressure and the liquid production amount of the target oil well in the preset time period, and the decreasing rate of the liquid production rate in the preset time period, and then according to the determined oil pressure decreasing speed and the decreasing rate of the liquid production rate, and presetting the oil pressure reduction speed and the liquid production rate, judging whether the target oil well collapses, if so, sending alarm information to a first preset terminal, the alarm information carries the identity of the target oil well, can find the sand burying condition of the oil well in time and inform related personnel to process, meanwhile, the judgment result obtained according to the oil pressure and the liquid production amount is accurate, the operability is strong, and the problems that related personnel are required to enter the oil well for operation in the existing oil well collapse judgment, the period is long and the risk is large are solved.
Fig. 3 is a schematic flow chart of a method for determining oil well collapse according to an embodiment of the present invention, and this embodiment explains details of a specific implementation process of this embodiment based on the embodiment of fig. 2. As shown in fig. 3, the method includes:
s301, obtaining the oil pressure and the liquid production amount of the target oil well in a preset time period.
S302, determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production amount in the preset time period.
S303, judging whether the target oil well collapses or not according to the descending speed of the oil pressure in the preset time period, the decreasing rate of the liquid production in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production.
S304, if the target oil well collapses, acquiring the oil pressure of the target oil well in a preset recovery time period after the well is closed, and acquiring the oil pressure of the target oil well in a preset well opening time period after the well is opened in the preset recovery time period.
S305, if the oil pressure of the target oil well in the preset recovery time period is recovered to a first preset oil pressure range, the oil pressure of the target oil well in the preset well-opening time period is reduced to a second preset oil pressure range, the liquid production amount of the target oil well in the preset well-opening time period is not more than a preset liquid production amount threshold value, alarm information is sent to a first preset terminal, and the alarm information carries the identity identification of the target oil well.
The preset recovery time period, the preset well opening time period, the first preset oil pressure range, the second preset oil pressure range, the preset liquid production threshold value and the like can be set according to actual conditions, for example, the preset recovery time period is 24-48 hours, the oil pressure of a target oil well can be recovered to 95% -105% of the initial oil pressure in the preset recovery time period, the preset well opening time period is 24-48 hours, the oil pressure rapidly drops to 0 in 24-48 hours after the well is opened, the oil well stops spraying, and the accumulated liquid production amount in the time period cannot exceed 50 t. According to the characteristics, the fact that the target oil well is collapsed and sand buried can be judged, alarm information can be sent to the first preset terminal to give an alarm, one-time judgment errors are avoided, and the judgment result accuracy is improved.
S306, generating a collapse test report of the target oil well, and sending the collapse test report to a second preset terminal, wherein the collapse test report carries a collapse judgment result of the target oil well.
Here, the terminal may generate a collapse test report according to the collapse judgment result of the target oil well, and send the collapse test report to a second preset terminal, where the second preset terminal may be set according to an actual situation, such as a mobile phone of a technician, so that the technician can know the collapse situation of the oil well, and can perform corresponding processing according to the collapse situation of the oil well, and is suitable for practical application.
According to the method for judging the oil well collapse, after the target oil well is judged to collapse, the oil well collapse is judged again, the error of primary judgment is avoided, the accuracy of the judgment result is improved, and after the oil well collapse is judged, a collapse test report is generated and sent to related personnel, so that the application requirements of various scenes are met.
Fig. 4 is a first schematic structural diagram of an oil well collapse determination device according to an embodiment of the present invention. As shown in fig. 4, the oil well collapse judging apparatus 40 includes: a data acquisition module 401, a data processing module 402, a collapse judgment module 403 and a collapse alarm module 404.
And the data acquisition module 401 is used for acquiring the oil pressure and the liquid production amount of the target oil well in a preset time period.
And the data processing module 402 is used for determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production in the preset time period.
And a collapse judging module 403, configured to judge whether the target oil well collapses according to the decrease rate of the oil pressure in the preset time period, the decrease rate of the liquid production in the preset time period, and the decrease rate of the preset oil pressure and the decrease rate of the preset liquid production.
And a collapse alarm module 404, configured to send alarm information to a first preset terminal if the target oil well collapses, where the alarm information carries an identity of the target oil well.
The device provided in this embodiment may be used to implement the technical solution of the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 5 is a schematic structural diagram of an oil well collapse determination device according to an embodiment of the present invention. As shown in fig. 5, this embodiment further includes, on the basis of the embodiment in fig. 4: a first fitted curve generating module 405, a second fitted curve generating module 406, and a collapse test report generating module 407.
In one possible design, the collapse determination module 403 includes a data processing unit 4031, a first collapse determination unit 4032, and a second collapse determination unit 4033.
The data processing unit 4031 is configured to obtain a decrease speed increase percentage of the decrease speed of the oil pressure in the preset time period compared with the decrease speed of the preset oil pressure, and obtain a decrease rate increase percentage of the decrease rate of the liquid production in the preset time period compared with the decrease rate of the preset liquid production.
The first collapse determination unit 4032 is configured to determine that the target oil well collapses to the first degree if the descending speed increase percentage is within a first preset threshold range and the decrement rate increase percentage is within a second preset threshold range.
And a second collapse determination unit 4033, configured to determine that the target oil well collapses to a second degree if the percentage of increase in the lowering speed is within a third preset threshold range and the percentage of increase in the decrement rate is within a fourth preset threshold range.
In one possible design, the collapse alarming module 404 is further configured to, if the target oil well collapses, obtain an oil pressure of the target oil well in a preset recovery time period after the shut-in of the well, and obtain an oil pressure of the target oil well in a preset well-in time period after the start of the well in the preset recovery time period;
and if the oil pressure of the target oil well in the preset recovery time period is recovered to a first preset oil pressure range, the oil pressure of the target oil well in the preset well-opening time period is reduced to a second preset oil pressure range, and the liquid yield of the target oil well in the preset well-opening time period is not more than a preset liquid yield threshold value, the step of sending alarm information to a first preset terminal is executed.
In one possible design, the first fitting curve generating module 405 is configured to generate a first fitting curve according to the oil pressure of the target oil well in the preset time period and the preset time period, where the first fitting curve is used to represent a linear relationship between the oil pressure of the target oil well in the preset time period and the preset time period.
And a second fitting curve generating module 406, configured to generate a second fitting curve according to the liquid production amount of the target oil well in a preset time period and the preset time period, where the second fitting curve is used to represent a linear relationship between the liquid production amount of the target oil well in the preset time period and the preset time period.
In a possible design, the collapse test report generating module 407 is configured to generate a collapse test report of the target oil well, and send the collapse test report to a second preset terminal, where the collapse test report carries a collapse judgment result of the target oil well
The device provided in this embodiment may be used to implement the technical solution of the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 6 is a schematic diagram of a hardware structure of the oil well collapse determination device according to the embodiment of the present invention. As shown in fig. 6, the oil well collapse judging device 60 of the present embodiment includes: a processor 601 and a memory 602; wherein
A memory 602 for storing computer-executable instructions;
the processor 601 is configured to execute the computer-executable instructions stored in the memory to implement the steps performed by the method for determining oil well collapse in the above-described embodiment. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 602 may be separate or integrated with the processor 601.
When the memory 602 is provided independently, the oil well collapse judging apparatus further comprises a bus 603 for connecting the memory 602 and the processor 601.
The embodiment of the invention also provides a computer-readable storage medium, wherein a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the method for judging the collapse of the oil well is realized.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A method for judging oil well collapse is characterized by comprising the following steps:
acquiring the oil pressure and the liquid yield of a target oil well in a preset time period;
determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production amount in the preset time period;
judging whether the target oil well collapses or not according to the descending speed of the oil pressure in the preset time period, the decreasing rate of the liquid production in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production;
and if the target oil well collapses, sending alarm information to a first preset terminal, wherein the alarm information carries the identity of the target oil well.
2. The method of claim 1, wherein said determining whether the target well has collapsed based on the rate of decrease of the oil pressure over the preset time period, the rate of decrease of the fluid production over the preset time period, and the rate of decrease of the preset oil pressure and the rate of decrease of the fluid production comprises:
obtaining a descending speed acceleration percentage of the descending speed of the oil pressure in the preset time period compared with the descending speed of the preset oil pressure, and obtaining a descending rate increase percentage of the liquid production rate in the preset time period compared with the preset liquid production rate;
if the descending speed acceleration percentage is within a first preset threshold range and the descending rate increase percentage is within a second preset threshold range, judging that the target oil well collapses to a first degree;
and if the descending speed acceleration percentage is within a third preset threshold range and the descending rate increase percentage is within a fourth preset threshold range, judging that the target oil well collapses to a second degree.
3. The method of claim 1, further comprising:
if the target oil well collapses, acquiring the oil pressure of the target oil well in a preset recovery time period after the well is closed, and acquiring the oil pressure of the target oil well in a preset well opening time period after the well is opened in the preset recovery time period;
And if the oil pressure of the target oil well in the preset recovery time period is recovered to a first preset oil pressure range, the oil pressure of the target oil well in the preset well-opening time period is reduced to a second preset oil pressure range, and the liquid yield of the target oil well in the preset well-opening time period is not more than a preset liquid yield threshold value, the step of sending alarm information to a first preset terminal is executed.
4. The method of claim 1, further comprising:
generating a first fitting curve according to the oil pressure of the target oil well in a preset time period and the preset time period, wherein the first fitting curve is used for representing a linear relation between the oil pressure of the target oil well in the preset time period and the preset time period;
and generating a second fitting curve according to the liquid production amount of the target oil well in the preset time period and the preset time period, wherein the second fitting curve is used for expressing the linear relation between the liquid production amount of the target oil well in the preset time period and the preset time period.
5. The method of claim 1, further comprising:
and generating a collapse test report of the target oil well, and sending the collapse test report to a second preset terminal, wherein the collapse test report carries a collapse judgment result of the target oil well.
6. An oil well collapse judging apparatus, comprising:
the data acquisition module is used for acquiring the oil pressure and the liquid yield of the target oil well in a preset time period;
the data processing module is used for determining the descending speed of the oil pressure in the preset time period and the decreasing rate of the liquid production amount in the preset time period;
the collapse judging module is used for judging whether the target oil well collapses or not according to the descending speed of the oil pressure in the preset time period, the decreasing rate of the liquid production capacity in the preset time period, the descending speed of the preset oil pressure and the decreasing rate of the preset liquid production capacity;
and the collapse alarm module is used for sending alarm information to a first preset terminal if the target oil well collapses, and the alarm information carries the identity of the target oil well.
7. The apparatus of claim 6, wherein the collapse determination module comprises:
the data processing unit is used for obtaining the descending speed acceleration percentage of the descending speed of the oil pressure in the preset time period compared with the descending speed of the preset oil pressure and obtaining the descending rate increase percentage of the liquid production rate in the preset time period compared with the descending rate of the liquid production rate;
The first collapse judging unit is used for judging that the target oil well collapses to a first degree if the descending speed acceleration percentage is within a first preset threshold range and the decrement rate rising percentage is within a second preset threshold range;
and the second collapse judging unit is used for judging that the target oil well collapses to a second degree if the descending speed acceleration percentage is within a third preset threshold range and the decrement rate increase percentage is within a fourth preset threshold range.
8. The apparatus of claim 6, wherein the collapse alarming module is further configured to obtain an oil pressure of the target oil well for a preset recovery time period after the shut-in if the target oil well collapses, and obtain an oil pressure of the target oil well for a preset well-opening time period after the well is opened for the preset recovery time period;
and if the oil pressure of the target oil well in the preset recovery time period is recovered to a first preset oil pressure range, the oil pressure of the target oil well in the preset well-opening time period is reduced to a second preset oil pressure range, and the liquid yield of the target oil well in the preset well-opening time period is not more than a preset liquid yield threshold value, the step of sending alarm information to a first preset terminal is executed.
9. The apparatus of claim 6, further comprising:
the first fitting curve generating module is used for generating a first fitting curve according to the oil pressure of the target oil well in a preset time period and the preset time period, and the first fitting curve is used for representing the linear relation between the oil pressure of the target oil well in the preset time period and the preset time period;
and the second fitting curve generating module is used for generating a second fitting curve according to the liquid production amount of the target oil well in a preset time period and the preset time period, and the second fitting curve is used for representing the linear relation between the liquid production amount of the target oil well in the preset time period and the preset time period.
10. The apparatus of claim 6, further comprising:
and the collapse test report generating module is used for generating a collapse test report of the target oil well and sending the collapse test report to a second preset terminal, wherein the collapse test report carries a collapse judgment result of the target oil well.
11. An oil well collapse judging apparatus, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
The at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method of well collapse determination of any one of claims 1 to 5.
12. A computer-readable storage medium having stored thereon computer-executable instructions that, when executed by a processor, implement the method of determining well collapse according to any one of claims 1 to 5.
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