CN114320236A

CN114320236A - Method and device for adjusting oil-gas well operation scheme and storage medium

Info

Publication number: CN114320236A
Application number: CN202011057198.9A
Authority: CN
Inventors: 蒋鑫; 朱怡晖; 胡晓华; 田冲; 蒋睿; 谢雳雳
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-12
Anticipated expiration: 2040-09-30
Also published as: CN114320236B

Abstract

The embodiment of the application discloses an adjusting method and device of an oil-gas well operation scheme and a storage medium, and belongs to the field of oil-gas development. The method comprises the following steps: dividing a plurality of oil and gas wells into a first type oil and gas well and a second type oil and gas well; estimating the recoverable reserve of each oil and gas well in the first type of oil and gas wells in a reference time period; estimating the recoverable reserves of each oil and gas well in the second type of oil and gas wells in a reference time period; and adjusting the operation scheme of the oil and gas well based on the recoverable reserves of each oil and gas well in the plurality of oil and gas wells in the reference time period. Whether production characteristic through oil gas well is clear and definite in this application embodiment, obtains first type oil gas well and second type oil gas well to be convenient for to first type oil gas well and second type oil gas well respectively in the recoverable reserves of reference time quantum predict, later according to predicting obtain every oil gas well be in whether the recoverable reserves of reference time quantum in confirms that whether need adjust oil gas well operation scheme, thereby guaranteed the actual output of many oil gas wells in the reference time quantum.

Description

Method and device for adjusting oil-gas well operation scheme and storage medium

Technical Field

The embodiment of the application relates to the field of oil and gas development, in particular to a method and a device for adjusting an oil and gas well operation scheme and a storage medium.

Background

In the development process of the oil and gas well, the final recoverable reserves of the oil and gas well are usually estimated firstly to evaluate the development potential of the oil and gas well, and meanwhile, the operation scheme of the oil and gas well can be adjusted based on the estimated final recoverable reserves, namely whether the total output of the oil and gas well is greater than or equal to the target output is determined. And if the total production of the oil and gas wells fails to reach the standard, the operation scheme of the oil and gas wells needs to be adjusted.

However, when estimating the final recoverable reserves of a hydrocarbon well, it is difficult to determine the final recoverable reserves of a portion of the well because the production characteristics of a portion of the well are not well defined.

Disclosure of Invention

In order to solve the problem that the final cuttable amount of an oil and gas well with part of uncertain production characteristics is difficult to predict, the embodiment of the application provides an adjusting method and device of an oil and gas well operation scheme and a storage medium. The technical scheme is as follows:

in a first aspect, there is provided a method of adjusting an operating regime of an oil or gas well, the method comprising:

dividing a plurality of oil and gas wells into a first type of oil and gas well and a second type of oil and gas well, wherein the first type of oil and gas well refers to an oil and gas well with definite production characteristics, and the second type of oil and gas well refers to an oil and gas well with indefinite production characteristics;

estimating the final recoverable reserves of each oil and gas well in the first type of oil and gas wells and the recoverable reserves in a reference time period;

estimating the recoverable reserves of each oil and gas well in the second oil and gas wells in the reference time period based on the final recoverable reserves of each oil and gas well in the first oil and gas wells;

and adjusting the operation scheme of the oil and gas wells based on the recoverable reserves of each oil and gas well in the first oil and gas well in the reference time period and the recoverable reserves of each oil and gas well in the second oil and gas well in the reference time period.

Optionally, said adjusting the hydrocarbon well operating scheme based on the producible volume of each of said first type of hydrocarbon well over said reference time period and the producible volume of each of said second type of hydrocarbon well over said reference time period comprises:

estimating the cumulative production of each oil and gas well in the first type of oil and gas wells in the reference time period based on the recoverable reserves of each oil and gas well in the first type of oil and gas wells in the reference time period;

estimating the cumulative production of each of the second type of oil and gas wells in the reference time period based on the recoverable reserves of each of the second type of oil and gas wells in the reference time period;

adjusting the hydrocarbon well operating scheme based on the reference time period when the sum of the cumulative production of the plurality of hydrocarbon wells over the reference time period is less than a target production.

Optionally, the dividing the plurality of oil and gas wells into a first type of oil and gas well and a second type of oil and gas well comprises:

obtaining historical production data of each of the plurality of oil and gas wells, wherein the historical production data comprises a plurality of historical production time periods and a plurality of historical yields corresponding to the plurality of historical production time periods;

determining a production characteristic curve based on historical production data of the plurality of oil and gas wells;

determining a first curve segment included by the production characteristic curve, and determining the production time corresponding to the first curve segment as a continuous production time;

right first oil and gas well among the many oil and gas wells, work as the current total production duration of first oil and gas well is greater than when lasting production, will first oil and gas well determines to first type oil and gas well, works as the current total production duration of first oil and gas well is less than or equal to when lasting production, will first oil and gas well determines to second type oil and gas well, first oil and gas well means arbitrary oil and gas well among the many oil and gas wells.

Optionally, said determining a production profile based on historical production data for said plurality of oil and gas wells comprises:

for each historical production time period in the multiple historical production time periods, determining the average historical yield of the multiple oil and gas wells in the same historical production time period to obtain the average historical yield corresponding to each historical production time period;

and drawing to obtain the production characteristic curve based on the average historical yield corresponding to the plurality of historical production time periods and each historical production time period.

Optionally, estimating the recoverable reserves of each of the first type of wells and the recoverable reserves within the reference time period comprises:

determining a second decreasing parameter based on the production characteristic curve, wherein the second decreasing parameter refers to a decreasing parameter of a second production stage, and the second production stage refers to a stage with definite production characteristics;

for a second oil and gas well in the first oil and gas wells, determining a smooth production stage of the second oil and gas well in the second production stage, wherein the decrement rate of the smooth production stage is less than a reference decrement rate, and the second oil and gas well is any one of the first oil and gas wells;

acquiring estimated total production time, a first historical yield, a second historical yield and historical total production time of the second oil and gas well, wherein the first historical yield refers to the historical yield of a first historical production time period in the stable production stage, the second historical yield refers to the historical yield of a second historical production time period in the stable production stage, and the historical total production time refers to the total generation time of the second oil and gas well before the first historical production time period;

estimating the recoverable reserves of the second oil and gas well in the reference time period based on the historical production data of the second oil and gas well, the reference time period, the first historical production, the second historical production and the second decreasing parameter;

estimating estimated total production of the second oil and gas well after the historical total production duration based on the estimated total production duration of the second oil and gas well, the first historical production, the second historical production, the historical total production duration and the second decreasing parameter;

and determining the sum of the estimated total production of the second oil and gas well after the historical total production time and the historical production of the second oil and gas well corresponding to each historical production time period before the historical total production time as the final recoverable reserve of the second oil and gas well.

Optionally, estimating the recoverable reserves of each of the second type of oil and gas wells within the reference time period based on the final recoverable reserves of each of the first type of oil and gas wells comprises:

determining a first decreasing parameter and a second decreasing parameter based on the production characteristic curve, wherein the first decreasing parameter refers to a decreasing parameter of a first production stage, the second decreasing parameter refers to a decreasing parameter of a second production stage, the first production stage refers to a stage with undefined production characteristic, and the second production stage refers to a stage with defined production characteristic;

acquiring a third historical yield, a fourth historical yield and an estimated total production duration corresponding to the production characteristic curve, wherein the third historical yield refers to the historical yield of a first historical production time period on the production characteristic curve, the fourth historical yield refers to the historical yield of a second historical production time period on the production characteristic curve, and the estimated total production duration corresponding to the production characteristic curve refers to the average estimated total production duration of the plurality of oil and gas wells;

estimating an initial decreasing rate of a second production stage of the second type of oil and gas wells based on the first decreasing parameter, the second decreasing parameter, the continuous production time, the third historical production, the fourth historical production, the estimated total production time corresponding to the production characteristic curve and the final recoverable reserves of each oil and gas well in the first type of oil and gas wells;

and estimating the recoverable reserves of each oil and gas well in the second oil and gas well in the reference time period based on the first decreasing parameters, the reference time period and the initial decreasing rate and the historical production data of each oil and gas well in the second oil and gas well.

Optionally, estimating an initial rate of decline of the second production phase of the second type of hydrocarbon well based on the first decreasing parameter, the second decreasing parameter, the duration of continuous production, the third historical production, the fourth historical production, an estimated total production duration corresponding to the production characteristic curve, and a final recoverable reserve of each of the first type of hydrocarbon well comprises:

estimating a first estimated yield corresponding to the production characteristic curve and an estimated total yield of a first production stage based on the third historical yield, the fourth historical yield, the first decrement parameter and the continuous production duration, wherein the first estimated yield is an estimated yield of the production characteristic curve in a first historical production time period of a second production stage;

estimating the initial decreasing rate of the second production stage of the second type of oil and gas wells based on the final recoverable reserve of each oil and gas well in the first type of oil and gas wells, the second decreasing parameter, the continuous production time, the estimated total production time corresponding to the production characteristic curve, the first estimated production and the estimated total production of the first production stage.

Optionally, estimating recoverable reserves of each of the second type of wells within the reference time period based on the first decreasing parameter, the second decreasing parameter, the duration, a reference time period, and the initial rate of decrease, and historical production data for each of the second type of wells, comprises:

for a third oil and gas well in the second oil and gas well, acquiring a fifth historical yield, a sixth historical yield and a production time point based on historical production data of the third oil and gas well, wherein the fifth historical yield refers to the historical yield of a first historical production time period of the third oil and gas well, the sixth historical yield refers to the historical yield of a second historical production time period of the third oil and gas well, and the third oil and gas well refers to any one of the second oil and gas well;

estimating a second estimated production of the third oil and gas well based on the fifth historical production, the sixth historical production, the first decrement parameter and the continuous production duration, wherein the second estimated production refers to the estimated production of a first historical production time period of a second production stage of the third oil and gas well;

and estimating the recoverable reserves of the third oil and gas well in the reference time period based on the second estimated production, the second decreasing parameter, the initial decreasing rate, the production time point and the reference time period.

In a second aspect, there is provided an apparatus for adjusting an operating regime of an oil or gas well, the apparatus comprising:

the dividing module is used for dividing the plurality of oil and gas wells into a first type of oil and gas wells and a second type of oil and gas wells, wherein the first type of oil and gas wells are oil and gas wells with definite production characteristics, and the second type of oil and gas wells are oil and gas wells with indefinite production characteristics;

the first estimation module is used for estimating the final recoverable reserves of each oil and gas well in the first type of oil and gas wells and the recoverable reserves in a reference time period;

the second estimation module is used for estimating the recoverable reserves of each oil and gas well in the second oil and gas wells in the reference time period based on the final recoverable reserves of each oil and gas well in the first oil and gas wells;

and the adjusting module is used for adjusting the operation scheme of the oil and gas wells based on the recoverable reserves in the reference time period of each oil and gas well in the first type of oil and gas wells and the recoverable reserves in the reference time period of each oil and gas well in the second type of oil and gas wells.

Optionally, the adjusting module includes:

the first estimation unit is used for estimating the accumulated production of each oil and gas well in the first type of oil and gas wells in the reference time period based on the recoverable reserves of each oil and gas well in the first type of oil and gas wells in the reference time period;

the second estimation unit is used for estimating the accumulated production of each oil and gas well in the second type of oil and gas wells in the reference time period based on the recoverable reserves of each oil and gas well in the second type of oil and gas wells in the reference time period;

and the adjusting unit is used for adjusting the oil and gas well operation scheme based on the reference time period when the cumulative production sum of the plurality of oil and gas wells in the reference time period is less than the target production.

Optionally, the dividing module includes:

the system comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring historical production data of each oil and gas well in the oil and gas wells, and the historical production data comprises a plurality of historical production time periods and a plurality of historical yields corresponding to the historical production time periods;

the first determination unit is used for determining a production characteristic curve based on historical production data of the plurality of oil and gas wells;

the second determining unit is used for determining a first curve segment included by the production characteristic curve and determining the production time length corresponding to the first curve segment as the continuous production time length;

and the third determining unit is used for determining a first oil and gas well in the plurality of oil and gas wells, when the current total production time of the first oil and gas well is greater than the continuous production time, the first oil and gas well is determined to be a first type of oil and gas well, when the current total production time of the first oil and gas well is less than or equal to the continuous production time, the first oil and gas well is determined to be a second type of oil and gas well, and the first oil and gas well refers to any one of the plurality of oil and gas wells.

Optionally, the first determining unit is mainly configured to:

Optionally, the first estimation module includes:

a fourth determining unit, configured to determine a second decreasing parameter based on the production characteristic curve, where the second decreasing parameter is a decreasing parameter of a second production phase, and the second production phase is a stage with clear production characteristics;

a fifth determining unit, configured to determine, for a second oil and gas well of the first oil and gas wells, a smooth production phase of the second oil and gas well in the second production phase, where a rate of decrease of the smooth production phase is smaller than a reference rate of decrease, and the second oil and gas well is any one of the first oil and gas wells;

the second acquisition unit is used for acquiring the estimated total production time length, the first historical yield, the second historical yield and the historical total production time length of the second oil and gas well, wherein the first historical yield refers to the historical yield of a first historical production time period in the stable production stage, the second historical yield refers to the historical yield of a second historical production time period in the stable production stage, and the historical total production time length refers to the total production time length of the second oil and gas well before the first historical production time period;

the third estimation unit is used for estimating the recoverable reserves of the second oil and gas well in the reference time period based on the historical production data of the second oil and gas well, the reference time period, the first historical production, the second historical production and the second decreasing parameter;

the fourth estimation unit is used for estimating the estimated total production of the second oil and gas well after the historical total production duration based on the estimated total production duration of the second oil and gas well, the first historical production, the second historical production, the historical total production duration and the second decrement parameter;

and the sixth determining unit is used for determining the sum of the estimated total production of the second oil and gas well after the historical total production time and the historical production of the second oil and gas well corresponding to each historical production time period before the historical total production time as the final recoverable reserve of the second oil and gas well.

Optionally, the second estimation module includes:

a seventh determining unit, configured to determine a first decreasing parameter and a second decreasing parameter based on the production characteristic curve, where the first decreasing parameter refers to a decreasing parameter in a first production phase, the second decreasing parameter refers to a decreasing parameter in a second production phase, the first production phase refers to a stage with undefined production characteristics, and the second production phase refers to a stage with well defined production characteristics;

a third obtaining unit, configured to obtain a third historical yield, a fourth historical yield and an estimated total production duration, where the third historical yield is a historical yield of a first historical production time period on the production characteristic curve, the fourth historical yield is a historical yield of a second historical production time period on the production characteristic curve, and the estimated total production duration corresponding to the production characteristic curve is an average estimated total production duration of the multiple oil and gas wells;

a fifth estimating unit, configured to estimate an initial decreasing rate of the second production phase of the second type of oil and gas wells based on the first decreasing parameter, the second decreasing parameter, the continuous production duration, the third historical production, the fourth historical production, the estimated total production duration corresponding to the production characteristic curve, and the final recoverable reserve of each oil and gas well in the first type of oil and gas wells;

and the sixth estimation unit is used for estimating the recoverable reserves of each oil and gas well in the second oil and gas well in the reference time period based on the first decreasing parameter, the second decreasing parameter, the duration, the reference time period and the initial decreasing rate and the historical production data of each oil and gas well in the second oil and gas well.

Optionally, the fifth estimating unit is mainly configured to:

estimating the initial decrement rate of the second production stage of the second type of oil and gas wells based on the final recoverable reserve of each oil and gas well in the first type of oil and gas wells, the second decremental parameter, the continuous production time length, and the estimated total production time length, the first estimated production and the estimated total production of the first production stage corresponding to the production characteristic curve.

Optionally, the sixth pre-estimating unit is mainly configured to:

and estimating the recoverable reserves of the third oil and gas well in the reference time period based on the second estimated production, the second decreasing parameter, the initial decreasing rate, the continuous production time length, the production time point and the reference time period.

In a third aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when executed by a processor, implements any of the methods provided in the first aspect above.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

whether the production characteristics through the oil and gas well are clear or not is divided into a plurality of oil and gas wells to obtain a first type oil and gas well and a second type oil and gas well, so that the subsequent recoverable reserves of each oil and gas well in the plurality of oil and gas wells in the reference time period can be estimated conveniently. And then determining whether the operation scheme of the oil and gas well needs to be adjusted according to the recoverable reserves of each oil and gas well in the plurality of oil and gas wells in the reference time period, thereby ensuring the actual yield of the plurality of oil and gas wells in the reference time period.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic flow chart of a method for adjusting an operating scheme of an oil and gas well provided by an embodiment of the application;

FIG. 2 is a schematic flow chart of a method for estimating recoverable reserves of each of a second type of oil and gas well within a reference time period according to an embodiment of the application;

FIG. 3 is a schematic diagram of an adjustment apparatus for an oil and gas well operating scenario provided by an embodiment of the present application;

fig. 4 is a block diagram of a terminal according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Before the examples of the present application are explained in detail, the production of oil and gas wells will be explained. In the production process of oil and gas wells, a rapid decline phase of production and a slow decline phase of production are generally included. Among them, the rapid decrement phase has a large decrement rate of the production (for example, an annual decrement rate of 40% or more), and is generally considered as a phase of unclear production characteristics because the large decrement rate makes it difficult to predict EUR (Estimated Ultimate recoverable reserve for single well evaluation); the slow decline phase has a smaller rate of yield decline (illustratively, an annual rate of decline of less than 40%) to facilitate EUR prediction and is therefore considered a well-characterized phase of production.

Optionally, the fast decreasing stage and the slow decreasing stage are generally divided according to a decreasing rate of the production within a certain time period, that is, when the decreasing rate of the production is greater than a reference decreasing rate, the oil and gas well is considered as the fast decreasing stage of the production within the certain time period, and when the decreasing rate of the production is less than the reference decreasing rate, the oil and gas well is considered as the slow decreasing stage of the production within the certain time period. Wherein the oil and gas well is a shale gas well, a shale oil well, a tight sandstone oil well and the like.

Fig. 1 is a schematic flow chart of a method for adjusting an oil and gas well operation scheme, which is provided by an embodiment of the present application and is applied to a terminal, where the terminal is a smart phone, a tablet computer, a notebook computer, or a desktop computer. As shown in fig. 1, the method includes the following steps.

In the production process of the oil and gas wells, in order to ensure that the total production and storage capacity of the plurality of oil and gas wells in the reference time period can reach the target production, an operation scheme is usually determined, the total production and storage capacity of the plurality of oil and gas wells in the reference time period is estimated based on the operation scheme, the estimated total production and storage capacity is compared with the target production, when the estimated total production and storage capacity is greater than or equal to the target production, the fact that the total production and storage capacity of the plurality of oil and gas wells in the reference time period can reach the target production when the plurality of oil and gas wells are produced according to the currently determined operation scheme is indicated, and the currently determined operation scheme can be used as the final operation scheme of the plurality of oil and gas wells. And when the estimated total production and storage amount is smaller than the target production, the estimated total production and storage amount indicates that the total production and storage amount of the multiple oil and gas wells in the reference time period can not reach the target production when the multiple oil and gas wells are produced according to the currently determined operation scheme, and the currently determined operation scheme is adjusted at the moment so as to ensure that the total production and storage amount of the multiple oil and gas wells in the reference time period can reach the target production when the multiple oil and gas wells are developed according to the adjusted operation scheme. The target yield refers to a task yield preset in the reference time period.

When the total production reserves of the plurality of oil and gas wells in the reference time period are estimated, the production stages of one part of the oil and gas wells are already in a stage with definite production characteristics, and the production stages of the other part of the oil and gas wells are in a stage with indefinite production characteristics. Therefore, before the recoverable reserves of each well in the reference time period can be estimated, the wells need to be divided to determine which wells are in the stage with undefined production characteristics and which wells are in the stage with defined production characteristics. Optionally, the well is compartmentalized by the following step 101.

Step 101: the multiple oil and gas wells are divided into a first oil and gas well and a second oil and gas well.

The first type of oil and gas wells refer to oil and gas wells with definite production characteristics, and the second type of oil and gas wells refer to oil and gas wells with indefinite production characteristics.

Alternatively, multiple wells can be compartmentalized by the following steps (1) - (4).

(1) And acquiring historical production data of each oil-gas well in the plurality of oil-gas wells.

Wherein the historical production data includes a plurality of historical production time periods and a plurality of historical production volumes corresponding to the plurality of historical production time periods. The historical production data refers to actual production data of the oil and gas well in the production process.

When the historical production data of each oil and gas well is obtained, the terminal displays a parameter obtaining interface, and then the terminal obtains the historical production data of each oil and gas well input by a user in the parameter obtaining interface. That is, the user inputs a plurality of historical production time periods of each oil and gas well and a plurality of historical production yields corresponding to the plurality of historical production time periods in a one-to-one mode in the parameter acquisition interface. Of course, in other possible embodiments, the terminal may also be capable of communicating with a storage device for such data to retrieve such data from the storage device. The embodiment of the present application does not limit this.

Wherein the plurality of historical production periods are in units of days, months or years. Illustratively, the plurality of historical production periods includes: day one, day two, day three, and day one is calculated from the point in time of production of the well. Accordingly, when the plurality of historical production periods are in units of days, the plurality of historical productions corresponding to the plurality of historical production periods one to one include: day one, day two, day three, etc.

(2) And determining a production characteristic curve based on historical production data of the plurality of oil and gas wells.

After the historical production number of each oil and gas well is obtained, for each historical production time period in a plurality of historical production time periods, the average historical yield of the plurality of oil and gas wells in the same historical production time period is determined, and the average historical yield corresponding to each historical production time period is obtained. And drawing to obtain a production characteristic curve based on the average historical yield corresponding to the plurality of historical production time periods and each historical production time period.

Illustratively, historical production of a plurality of oil and gas wells on the first day is averaged to obtain average historical content on the first day; averaging the historical production of the plurality of oil and gas wells in the next day to obtain the average historical content of the oil and gas wells in the next day; and then obtaining a plurality of average historical yields which are in one-to-one correspondence with a plurality of historical production time periods. And then drawing a production characteristic curve based on a plurality of historical production time periods and a plurality of average historical yields which are in one-to-one correspondence with the historical production time periods.

When the production characteristic curve is drawn, a coordinate system is established, production duration is taken as an abscissa, average yield is taken as an ordinate, coordinate points corresponding to each historical production time period and the average historical yield corresponding to the historical production time period are determined on the coordinate system to obtain a plurality of coordinate points, and then the plurality of coordinate points are fitted through a smooth curve to obtain the production characteristic curve.

(3) And determining a first curve segment included by the production characteristic curve, and determining the production time corresponding to the first curve segment as the continuous production time.

The first curve segment is a characteristic curve corresponding to a stage with undefined production characteristics, and the continuous production duration refers to the estimated production duration of the stage with undefined production characteristics in the production process of the oil and gas well.

Optionally, the terminal obtains historical yields respectively corresponding to two adjacent historical production time periods on the production characteristic curve, and makes a difference between the two historical yields, and when an absolute value of the difference is greater than a first reference value and smaller than a second reference value, determines a curve segment before a coordinate point corresponding to a previous historical production time period in the two adjacent historical production time periods as a first curve segment.

The larger the absolute value of the difference is, the larger the decrement rate of the production characteristic curve is, and when the absolute value of the difference is larger than a first reference value, the two acquired historical production time periods are both in a stage with undefined production characteristics; the smaller the absolute value of the difference is, the smaller the decrement rate of the production characteristic curve is, and when the absolute value of the difference is smaller than a second reference value, the two acquired historical production time periods are both in a stage with clear production characteristics.

Of course, the first curve segment which the production characteristic curve comprises can also be determined by other methods. Illustratively, the terminal acquires a first coordinate point corresponding to historical production data of a first historical production time period and a second coordinate point corresponding to historical production data of any historical production time period on the production characteristic curve, and when the absolute value of the slope of a straight line where the first coordinate point and the second coordinate point are located is smaller than a third reference value and larger than a fourth reference value, a curve segment before the second coordinate point on the production characteristic curve is taken as the first curve segment.

When the absolute value of the slope of the straight line is larger than a third reference value, any acquired historical production time period is in a stage with uncertain production characteristics, wherein the larger the absolute value of the slope of the straight line is, the larger the decrement rate of the production characteristic curve is; and when the absolute value of the slope of the straight line is smaller, the decreasing rate of the production characteristic curve is smaller, and the absolute value of the slope of the straight line is smaller than the fourth reference value, any acquired historical production time period is in a stage with clear production characteristics.

After the first curve section is determined, determining an abscissa numerical value corresponding to the right end point of the first curve section on the coordinate system, and determining the continuous production time.

(4) And for a first oil and gas well in the plurality of oil and gas wells, determining the first oil and gas well as a first type of oil and gas well when the current total production duration of the first oil and gas well is greater than that of continuous production, and determining the first oil and gas well as a second type of oil and gas well when the current total production duration of the first oil and gas well is less than or equal to that of the continuous production.

Wherein, the first oil and gas well refers to any one of a plurality of oil and gas wells. The current total duration time refers to the sum of a plurality of historical production time periods. Therefore, the total production time of each oil and gas well can be compared with the continuous production time, namely the total production time of each oil and gas well is compared with the estimated production time of the stage with undefined production characteristics of each oil and gas well, so that the production stages of which oil and gas wells are stage with undefined production characteristics and the production characteristics of which oil and gas wells are stage with defined production characteristics in a plurality of oil and gas wells are determined.

When the current total production duration of the first oil and gas well is longer than the continuous production duration, the production characteristics of the current production stage of the first oil and gas well are determined to be definite, namely the first oil and gas well comprises a stage with indefinite production characteristics and a stage with definite production characteristics, at this time, the first oil and gas well is determined to be a first type of oil and gas well, when the current total production duration of the first oil and gas well is less than or equal to the continuous production duration, the production characteristics of the current production stage of the first oil and gas well are not definite, namely the first oil and gas well only comprises a stage with indefinite production characteristics, and at this time, the first oil and gas well is determined to be a second type of oil and gas well.

In the embodiment of the application, besides the division of the plurality of oil and gas wells through the steps (1) to (4), the division can be performed through other parameters. For example, the classification is performed through the corresponding decreasing rate of each oil and gas well in each historical production time period.

Step 102: final recoverable reserves of each of the first type of wells are estimated and recoverable reserves within a reference time period.

Optionally, after the plurality of oil and gas wells are divided, the final recoverable storage amount of each oil and gas well in the first type of oil and gas wells and the recoverable storage amount in the reference time period can be estimated through the following steps (1) to (6).

(1) And determining a second decreasing parameter based on the production characteristic curve, wherein the second decreasing parameter refers to a decreasing parameter of a second production stage, and the second production stage refers to a stage with clear production characteristics.

After the production characteristic curve is determined in step 101, logarithmic transformation is performed on the abscissa and the ordinate of any point on the production characteristic curve, respectively, so as to obtain a log-log curve corresponding to the production characteristic curve. The specific manner of the logarithmic transformation may refer to related technologies, which is not limited in the embodiments of the present application. The log-log curve comprises a first log-log curve section corresponding to the first curve section.

At this time, a portion of the curve segment on the log-log curve other than the first log-log curve segment is determined as a second log-log curve segment. That is, the first log-log curve segment is a curve corresponding to a stage with undefined production characteristics, and the second log-log curve segment is a curve corresponding to a stage with defined production characteristics. And then fitting the second log-log curve segment to obtain a corresponding second straight line, and determining the reciprocal of the slope of the second straight line as a second decreasing parameter.

(2) And for a second oil and gas well in the first oil and gas well, determining a stable production stage of the second oil and gas well in the second production stage, wherein the decrement rate of the stable production stage is less than the reference decrement rate, and the second oil and gas well is any one of the first oil and gas well.

Optionally, a production curve of the second oil and gas well is drawn according to the historical production data of the second oil and gas well, and at the moment, a first curve segment and a second curve segment are marked on the production curve of the second oil and gas well. In combination with the above, the rate of decrease of the first curve segment is relatively large, and at this time, the second curve segment may be determined as the curve corresponding to the second production phase of the second hydrocarbon well. And then the user selects a production stage with the decrement rate smaller than the reference decrement rate through a trigger operation on the drawn production curve. And when the user selects the production stage with the decrement rate smaller than the reference decrement rate through the triggering operation, the terminal determines the production stage selected by the user as a stable production stage.

The production stage has a certain duration, a user can respectively determine a starting point and an end point of the production stage through two clicking operations, and then a stage corresponding to a curve segment between the starting point and the end point is determined as the production stage selected by the user. The production phase selected by the user may be the entire phase corresponding to the second curve segment or may be the phase corresponding to a portion of the continuous curve on the second curve segment.

(3) And acquiring the estimated total production time, the first historical production, the second historical production and the historical total production time of the second oil-gas well.

The first historical yield refers to the historical yield of a first historical production time period in a stable production stage, the second historical yield refers to the historical yield of a second historical production time period in the stable production stage, and the total historical production duration refers to the total production duration of the second oil and gas well before the first historical production time period.

Illustratively, the first historical production volume refers to the historical production volume for the first day within a plateau production phase, and the second historical production volume refers to the historical production volume for the second day within a plateau production phase.

And the terminal displays the parameter acquisition interface, and then acquires the estimated total production time of the second oil-gas well input by the user in the parameter acquisition interface. That is, the user inputs the estimated total production time of the second well in the parameter acquisition interface. Of course, the terminal can also obtain the estimated total production time of the second oil and gas well in other ways, and the embodiment of the application does not limit the estimated total production time. The terminal can obtain the first historical yield, the second historical yield and the first historical total production duration on the curve segment corresponding to the stable production stage. And the terminal determines the abscissa value of the left end point of the curve segment as a first historical total production duration, determines the ordinate value of the left end point as a first historical production, and determines the ordinate value of one coordinate point adjacent to the left end point as a second historical production.

The estimated total production time of the second oil and gas well can also be the total production time before the second oil and gas well is scrapped. The related art can be referred to for a method for determining the scrapped time point of the second oil-gas well, and the method is not limited in the embodiment of the application. For example, the daily production of the second oil and gas well may be predicted, and when the daily production is smaller than the reference production, the rejection of the second oil and gas well may be determined, and then the starting time point of the production time period corresponding to the predicted daily production may be determined as the time point of the rejection of the second oil and gas well.

(4) And estimating the recoverable reserves of the second oil and gas well in the reference time period based on the historical production data of the second oil and gas well, the reference time period, the first historical production, the second historical production and the second decreasing parameter.

Obtaining the production time point of the second oil and gas well according to the historical production data of the second oil and gas well, and estimating the recoverable reserves of the second oil and gas well in the reference time period according to the following first formula based on the production time point, the reference time period, the first historical production, the second historical production and the second descending parameter of the second oil and gas well:

wherein, in the first formula, q₁Refers to the recoverable reserve, q, of the second well over a reference time_i1Is referred to as the first historical yield, q_i2Is referred to as the second historical yield, n₂Refers to a second decreasing parameter; t is₁Refers to an end time point of the reference period; t is₂Refers to the starting point in time, t, of the reference time period₁Refers to the production time point of the second oil and gas well.

(5) And estimating the estimated total production of the second oil and gas well after the historical total production time based on the estimated total production time, the first historical production, the second historical production, the historical total production time and the second decreasing parameter of the second oil and gas well.

Optionally, based on the estimated total production time of the second oil and gas well, the first historical production, the second historical production, the first historical total production time and the second decreasing parameter, the estimated total production of the second oil and gas well after the historical total production time is estimated according to a second formula as follows:

wherein, in the second formula, q_f1Refers to the estimated total production, q, of the second well after the first historical total production duration_i1Is referred to as the first historical yield, q_i2Is referred to as the second historical yield, n₂Is a second decreasing parameter, t_j1Is the estimated total production time, t, of the second well_i1Refers to the historical total production time.

(6) And determining the sum of the estimated total production of the second oil and gas well after the historical total production time and the historical production of the second oil and gas well corresponding to each historical production time period before the historical total production time as the final recoverable storage of the second oil and gas well.

Step 103: and estimating the recoverable reserves of each oil and gas well in the second oil and gas wells in the reference time period based on the final recoverable reserves of each oil and gas well in the first oil and gas wells.

Optionally, after determining the final recoverable capacity of each of the first type of wells, as shown in fig. 2, the recoverable capacity of each of the second type of wells over the reference time period can be estimated through steps 1031-1034 as follows.

Step 1031: a first decreasing parameter and a second decreasing parameter are determined based on the production characteristic curve, the first decreasing parameter refers to a decreasing parameter of a first production stage, and the first production stage refers to a stage with uncertain production characteristics.

After the first log-log curve segment is determined through the above step 101, the first log-log curve segment is fitted to obtain a corresponding first straight line, and the reciprocal of the slope of the first straight line is determined as a first decreasing parameter. The method for determining the second decreasing parameter is as described in step 101 above, and is not described in detail here.

Step 1032: and acquiring a third historical yield, a fourth historical yield and an estimated total production time corresponding to the production characteristic curve.

The third historical yield refers to the historical yield of the first historical production time period on the production characteristic curve, the fourth historical yield refers to the historical yield of the second historical production time period on the production characteristic curve, and the estimated total production duration corresponding to the production characteristic curve refers to the average estimated total production duration of the plurality of oil and gas wells. Illustratively, in connection with the above, the third historical production refers to an average historical production for a first day of the plurality of oil and gas wells and the fourth historical production refers to an average historical production for a second day of the plurality of oil and gas wells.

And the terminal displays a parameter acquisition interface, and then acquires the estimated total production time corresponding to the production characteristic curve input by the user in the parameter acquisition interface. That is, the user inputs the estimated total production time corresponding to the production characteristic curve in the parameter obtaining interface. Of course, the terminal can also obtain the estimated total production time corresponding to the production characteristic curve through other methods, which is not limited in the embodiment of the present application.

The terminal can obtain a third historical production and a fourth historical production on the production characteristic curve. And the terminal determines the ordinate value of the left endpoint of the production characteristic curve as the third historical total production duration, and determines the ordinate value of one coordinate point adjacent to the left endpoint as the fourth historical yield.

The estimated total production time corresponding to the production characteristic curve may be an average time of the estimated total production time of the plurality of oil and gas wells, and of course, the estimated total production time corresponding to the production characteristic curve may also be a total production time when the daily yield corresponding to the predicted production characteristic curve is smaller than the reference yield. The method for predicting the daily yield corresponding to the production characteristic curve may refer to related technologies, which is not limited in the embodiments of the present application.

Step 1033: and estimating the initial decreasing rate of the second production stage of the second type of oil and gas wells based on the estimated total production time corresponding to the first decreasing parameter, the second decreasing parameter, the continuous production time, the third historical production, the fourth historical production, the production characteristic curve and the final recoverable reserve of each oil and gas well in the first type of oil and gas wells.

(1) And estimating a first estimated yield corresponding to the production characteristic curve and an estimated total yield of the first production stage based on the third historical yield, the fourth historical yield, the first decreasing parameter and the continuous production duration.

The first estimated yield refers to the estimated yield of the production characteristic curve in the first historical production time period of the second production stage.

And estimating a first estimated yield of the production characteristic curve according to a third formula as follows based on the third historical yield, the fourth historical yield, the first decreasing parameter and the continuous production duration:

wherein, in the third formula, q_j1Refers to the first estimated yield, q_i3Refers to the yield of the third history, q_i4Means fourth historical yield, n₁Refers to the first decreasing parameter, and t refers to the duration of the continuous production.

Based on the third historical yield, the fourth historical yield, the first decreasing parameter and the continuous production duration, the estimated total yield of the first production stage of the production characteristic curve is estimated according to a fourth formula as follows:

wherein, in the fourth formula, q is_f2Refers to the estimated total yield, q, of the first production phase of the production profile_i3Refers to the yield of the third history, q_i4Means fourth historical yield, n₁Refers to the first decreasing parameter, and t refers to the duration of the continuous production.

(2) Estimating the initial decrement rate of the second production stage of the second type of oil and gas wells based on the final recoverable reserve, the second decrement parameters and the duration of each oil and gas well in the first type of oil and gas wells, and the estimated total production duration, the first estimated production and the estimated total production of the first production stage corresponding to the production characteristic curve.

Averaging the final recoverable reserves of all oil and gas wells included in the first type of oil and gas wells to obtain the average recoverable reserve of the first type of oil and gas wells, and estimating the initial decreasing rate of the second production stage of the second type of oil and gas wells according to a fifth formula as follows based on the average recoverable reserve of the first type of oil and gas wells, the first estimated yield of the production characteristic curve, the estimated total yield of the first production stage, the second decreasing parameter, the continuous production duration and the estimated total production duration corresponding to the production characteristic curve:

wherein, in the above-mentioned fifth formula,

refers to the average recoverable reserves of the first type of oil and gas wells; q. q.s_f2Refers to the estimated total yield, q, of the first production phase of the production profile_j1Refers to the first estimated yield, d refers to the initial decrement rate, n₂Is a second decreasing parameter, t_j2The estimated total production time corresponding to the production characteristic curve is indicated, and t is the continuous production time.

Step 1034: and estimating the recoverable reserves of each oil and gas well in the second type of oil and gas wells in the reference time period based on the first degressive parameter, the second degressive parameter, the duration, the reference time period and the initial degressive rate and the historical production data of each oil and gas well in the second type of oil and gas wells.

(1) And for a third oil and gas well in the second type of oil and gas well, acquiring a fifth historical production, a sixth historical production and a production time point based on the historical production data of the third oil and gas well.

The fifth historical production refers to the historical production of the first historical production time period of the third oil and gas well, the sixth historical production refers to the historical production of the second historical production time period of the third oil and gas well, and the third oil and gas well refers to any one of the second oil and gas wells. Illustratively, the fifth historical production refers to the historical production of the third well on the first day and the sixth historical production refers to the historical production of the third well on the second day.

Optionally, a production curve for the third well is plotted against historical production data for the third well. The terminal then obtains a fifth historical production and a sixth historical production on the production profile. And the terminal determines the ordinate value of the left end point of the production curve of the third oil-gas well as the fifth historical total production duration, and determines the ordinate value of one coordinate point adjacent to the left end point as the sixth historical production.

(2) And estimating a second estimated production of the third oil and gas well based on the fifth historical production, the sixth historical production, the first decreasing parameter and the continuous production duration.

The second estimated production of the third oil and gas well refers to the estimated production of the last historical production time period of the third oil and gas well, namely the estimated production of the first historical production time period of the second production stage of the third oil and gas well.

Optionally, based on the fifth historical production, the sixth historical production, the first diminishing parameter, and the duration of production, a second predicted production of the third hydrocarbon well is predicted according to a sixth formula as follows:

wherein, in the above sixth formula, q_j2Is the second predicted production, q, of the third well_i5Is referred to as the fifth historical yield, q_i6Means sixth historical yield, n₁Means the first descending parameterNumber, t means duration of continuous production.

(3) And estimating the recoverable reserve of the third oil and gas well in the reference time period based on the second estimated production, the second decreasing parameter, the initial decreasing rate, the production time point, the continuous production time and the reference time period of the third oil and gas well.

Optionally, based on the second estimated production, the second decreasing parameter, the initial decreasing rate, the production time point, the continuous production duration and the reference time period of the third oil and gas well, the recoverable reserve of the third oil and gas well in the reference time period is estimated according to a seventh formula as follows:

wherein, in the seventh formula, q₂Refers to the recoverable reserve, q, of a third well over a reference time period_j2Is the second predicted production, n, of the third well₂Refers to the second decreasing parameter, d refers to the initial decreasing rate, T₁Refers to an end time point of the reference period; t is₂Refers to the starting point in time, t, of the reference time period₂Refers to the production time point of the third oil and gas well; t refers to the duration of continuous production.

It should be noted that, the estimation of the recoverable reserves of the third oil and gas well in the reference time period through the steps (1) to (3) is established when the reference time period is in a stage with clear production characteristics of the third oil and gas well. The method for determining the reference time period at which stage is as follows: whether a length of time between a starting time point of the reference time period and a production time point of the third oil and gas well is greater than a duration of continuous production. If the time length between the starting time point of the reference time period and the production time point of the third oil and gas well is greater than or equal to the continuous production time length, determining that the reference time period is in a stage with definite production characteristics of the third oil and gas well; when the time length between the termination time point of the reference time period and the production time point of the third oil and gas well is less than or equal to the continuous production time length, determining that the reference time period is in a stage that the production characteristics of the third oil and gas well are undefined; and when the time length between the starting time point of the reference time period and the production time point of the third oil and gas well is less than the continuous production time length, and the time length between the ending time point of the reference time period and the production time point of the third oil and gas well is greater than the continuous production time length, determining that one part of the reference time period is in a stage with undefined production characteristics of the third oil and gas well, and the other part of the reference time period is in a stage with definite production characteristics of the third oil and gas well.

And when the reference time period is in a stage that the production characteristics of the third oil and gas well are not clear, after the first decreasing parameter is determined through the step 1031, the step (1) in the step 1034 is directly executed, and then the recoverable reserves of the third oil and gas well in the reference time period are estimated according to the following step (4).

(4) And estimating the recoverable reserves of the third oil and gas well in the reference time period based on the fifth historical yield, the sixth historical yield, the first decreasing parameter, the production time point of the third oil and gas well and the reference time period.

Optionally, the fifth historical production, the sixth historical production, the first decreasing parameter, the production time point of the third oil and gas well and the reference time period are estimated according to an eighth formula as follows:

wherein, in the above eighth formula, q₂Refers to the recoverable reserve, q, of a third well over a reference time period_i5Is referred to as the fifth historical yield, q_i6Means sixth historical yield, n₁Is referred to as the first decreasing parameter, T₁Refers to an end time point of the reference period; t is₂Refers to the starting point in time, t, of the reference time period₂Refers to the production time point of the third oil and gas well.

Step 104: and adjusting the operation scheme of the oil and gas wells based on the recoverable reserves of each oil and gas well in the first type of oil and gas wells in the reference time period and the recoverable reserves of each oil and gas well in the second type of oil and gas wells in the reference time period.

The method comprises the steps of estimating the accumulated production of a first type of oil and gas wells in a reference time period based on the recoverable reserves of each oil and gas well in the first type of oil and gas wells in the reference time period, estimating the accumulated production of a second type of oil and gas wells in the reference time period based on the recoverable reserves of each oil and gas well in the second type of oil and gas wells in the reference time period, and adjusting the operation scheme of the oil and gas wells based on the reference time period when the sum of the accumulated production of a plurality of oil and gas wells in the reference time period is smaller than a target production.

And if the sum of the cumulative production of the plurality of oil and gas wells in the reference time period is greater than the target production, determining that the target production can be achieved according to the currently determined operation scheme, and further taking the currently determined operation scheme as the final operation scheme of the oil and gas wells. And if the sum of the cumulative production of the plurality of oil and gas wells in the reference time period is less than the target production, determining that the target production cannot be achieved according to the currently determined operation scheme, and further adjusting the currently determined operation scheme based on the reference time period.

The adjustment of the currently determined operation scheme comprises the steps of re-drilling a new oil and gas well before the starting time point of the reference time period, performing advanced fracturing on the newly drilled oil and gas well to enable the new oil and gas well to be put into production in advance, laying a bottom surface gathering pipeline and the like in advance, and accordingly increasing the number of wells for producing the oil and gas wells. Of course, the currently determined operation scheme can be adjusted in other ways, which is not limited in the embodiment of the present application.

In the embodiment of the application, whether production characteristic through the oil gas well is clear and definite, divide many oil gas wells, obtain first type oil gas well and second type oil gas well to be convenient for follow-up in many oil gas wells every oil gas well can adopt the reserves of time quantum in the reference and predict. After the recoverable reserves of each oil and gas well in the plurality of oil and gas wells in the reference time period are estimated, whether the operation scheme of the oil and gas wells needs to be adjusted or not is determined, and therefore the actual yield of the plurality of oil and gas wells in the reference time period is guaranteed.

Fig. 3 is a schematic structural diagram of an adjustment device for an oil and gas well operation scheme provided by an embodiment of the application. As shown in fig. 3, the apparatus includes:

the dividing module 301 is configured to divide the multiple oil and gas wells into a first type of oil and gas well and a second type of oil and gas well, where the first type of oil and gas well refers to an oil and gas well with a definite production characteristic, and the second type of oil and gas well refers to an oil and gas well with an indefinite production characteristic;

a first estimation module 302, configured to estimate a final recoverable reserve of each of the first type of oil and gas wells and a recoverable reserve in a reference time period;

the second estimation module 303 is configured to estimate the recoverable reserves of each of the second type of oil and gas wells in the reference time period based on the final recoverable reserves of each of the first type of oil and gas wells;

an adjusting module 304 for adjusting the operation scheme of the oil and gas wells based on the producible reserves of each of the first kind of oil and gas wells in the reference time period and the producible reserves of each of the second kind of oil and gas wells in the reference time period.

Optionally, the adjusting module 304 includes:

Optionally, the dividing module 301 includes:

Optionally, the first determining unit is mainly configured to:

Optionally, the first estimation module 302 includes:

Optionally, the second estimation module 303 includes:

Optionally, the fifth estimating unit is mainly configured to:

Optionally, the sixth pre-estimating unit is mainly configured to:

In the embodiment of the application, whether production characteristic through the oil gas well is clear and definite, divide many oil gas wells, obtain first type oil gas well and second type oil gas well to be convenient for follow-up in many oil gas wells every oil gas well can adopt the reserves of time quantum in the reference and predict. And then determining whether the operation scheme of the oil and gas well needs to be adjusted according to the recoverable reserves of each oil and gas well in the plurality of oil and gas wells in the reference time period, thereby ensuring the actual yield of the plurality of oil and gas wells in the reference time period.

It should be noted that: when the adjusting device for the oil and gas well operation scheme provided by the embodiment is used for determining the oil and gas well operation scheme, the division of the functional modules is only used for illustration, and in practical application, the function distribution can be completed by different functional modules according to needs, that is, the internal structure of the equipment is divided into different functional modules so as to complete all or part of the functions described above. In addition, the adjusting device of the oil and gas well operation scheme and the adjusting method of the oil and gas well operation scheme provided by the embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment and is not described again.

Fig. 4 shows a block diagram of a terminal 400 according to an exemplary embodiment of the present application. Referring to fig. 4, the terminal 400 may be: a smartphone, a tablet, a laptop, or a desktop computer. The terminal 400 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc. Referring to fig. 4, the terminal 400 may include a processor 401 and a memory 402.

Processor 401 may include one or more processing cores, such as a 4-core processor, an 8-core processor, or the like. The processor 401 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 401 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 401 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 401 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 402 may include one or more computer-readable storage media, which may be non-transitory. Memory 402 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 402 is used to store at least one instruction for execution by processor 401 to implement a method of adjusting a hydrocarbon well operating scenario as provided by method embodiments herein.

In some embodiments, the terminal 400 may further optionally include: a peripheral interface 403 and at least one peripheral. The processor 401, memory 402 and peripheral interface 403 may be connected by bus or signal lines. Each peripheral may be connected to the peripheral interface 403 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 404, a display screen 405, a positioning component 406, and a power supply 407.

The peripheral interface 403 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 401 and the memory 402. In some embodiments, processor 401, memory 402, and peripheral interface 403 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 401, the memory 402 and the peripheral interface 403 may be implemented on a separate chip or circuit board, which is not limited by this embodiment.

The Radio Frequency circuit 404 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 404 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 404 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 404 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 404 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, generations of mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 404 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display screen 405 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 405 is a display screen, the display screen 405 also has the ability to capture touch signals on or over the surface of the display screen 405. The touch signal may be input to the processor 401 as a control signal for processing. At this point, the display screen 405 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 405 may be one, providing the front panel of the terminal 400; in other embodiments, the display screen 405 may be at least two, respectively disposed on different surfaces of the terminal 400 or in a folded design; in still other embodiments, the display 405 may be a flexible display disposed on a curved surface or a folded surface of the terminal 400. Even further, the display screen 405 may be arranged in a non-rectangular irregular pattern, i.e. a shaped screen. The Display screen 405 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and other materials.

The positioning component 406 is used to locate the current geographic Location of the terminal 400 for navigation or LBS (Location Based Service). The Positioning component 406 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.

The power supply 407 is used to supply power to the various components in the terminal 400. The power source 407 may be alternating current, direct current, disposable or rechargeable. When the power source 407 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.

Those skilled in the art will appreciate that the configuration shown in fig. 4 is not intended to be limiting of terminal 400 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.

In the above embodiments, there is also provided a non-transitory computer-readable storage medium comprising instructions for storing at least one instruction for execution by a processor to implement the methods provided by the above embodiments of fig. 1 and 2.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only an alternative embodiment of the present application and should not be construed as limiting the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method of adjusting an operating regime of an oil or gas well, the method comprising:

2. The method of claim 1, wherein adjusting the well operating plan based on the producible reserves of each of the first plurality of wells over the reference time period and the producible reserves of each of the second plurality of wells over the reference time period comprises:

3. The method of claim 1, wherein the dividing the plurality of oil and gas wells into a first type of oil and gas well and a second type of oil and gas well comprises:

4. The method of claim 3, wherein determining a production profile based on historical production data for the plurality of oil and gas wells comprises:

5. The method of claim 3, wherein estimating the producible volume of each of the first plurality of wells and the producible volume over the reference time period comprises:

6. The method of claim 3, wherein estimating the producible capacity of each of the second type of wells over the reference time period based on the final producible capacity of each of the first type of wells comprises:

estimating the recoverable reserves of each oil and gas well in the second type of oil and gas wells in the reference time period based on the first decreasing parameter, the second decreasing parameter, the duration, the reference time period and the initial decreasing rate and the historical production data of each oil and gas well in the second type of oil and gas wells.

7. The method of claim 6, wherein estimating an initial rate of decline of the second production phase of the second type of well based on the first declining parameter, the second declining parameter, the duration of production, the third historical production, the fourth historical production, the estimated total production duration for the production profile, and the final recoverable reserves for each of the first type of well comprises:

8. The method of claim 6, wherein estimating recoverable reserves for each of the second type of wells over the reference time period based on the first decreasing parameter, the second decreasing parameter, the duration, the reference time period and the initial decreasing rate, and historical production data for each of the second type of wells comprises:

9. An apparatus for adjusting an operating scheme for an oil or gas well, the apparatus comprising:

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 8.