Gas well intermittent opening information determination method, device and equipment and medium

Abstract

The embodiment of the invention provides a gas well intermittent opening information determination method. According to the gas well type of the target gas well, acquiring gas well basic data of the target gas well in the historical duration; for at least one target gas well, the hourly gas volume and the hourly liquid volume of the target gas well are determined according to the gas well basic data, the hourly gas volume function and the hourly liquid volume function of the target gas well; for at least one target gas well, the actual critical hourly flow of the target gas well is determined according to the critical liquid-carrying flow model corresponding to the target gas well; and gas well intermittent opening information of the target gas well is determined according to the hourly gas flow, the hourly flow and the actual critical hourly flow. According to the technical scheme, according to the basic information of the target gas well, the intermittent production duration of the intermittent production type gas well is adjusted, the continuous production type gas well is updated to be the intermittent production type gas well, the intermittent production system more suitable for the gas well is selected, gas well output can be played to the maximum extent, gas well production is stabilized, and the gas well recovery efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to the field of gas field development, and more particularly to a method for determining inter-well opening information. Background Technology

[0002] In the later stages of gas well development, as the development and commissioning time gradually lengthens and the reservoir pressure gradually decreases, the gas well inevitably transitions from continuous production to intermittent operation. This intermittent operation system is called the intermittent operation system, which refers to the duration of the well's operation and shutdown times. The transition from continuous to intermittent production is unavoidable in the gas well production cycle. Therefore, selecting a suitable intermittent operation system is of significant practical importance for maximizing gas well production, stabilizing gas well output, and ensuring maximum gas well productivity.

[0003] An unreasonable well-opening schedule can severely impact well productivity, even causing irreversible productivity decline. When the well-opening time under an intermittent schedule is longer than the optimal time, well productivity cannot be effectively restored, pressure recovery time is short, and effective fluid carrying capacity during well opening is impossible. Conversely, when the well-opening time under an intermittent schedule is shorter than the optimal time, while well productivity can be effectively restored, production is not maximized, affecting the well's cumulative gas production level.

[0004] Currently, the method for determining the intermittent opening / closing regime for gas wells mainly involves a comprehensive assessment based on factors such as the recovery of oil and casing pressure and the instantaneous production flow rate of the gas well. However, this method often results in discrepancies between the determined well opening / closing times and actual production conditions.

[0005] Therefore, how to quickly and effectively determine the rationality of the gas well intermittent operation system with minimal gas well data is one of the urgent problems to be solved in actual production. Summary of the Invention

[0006] This disclosure provides a method, apparatus, equipment, and medium for determining intermittent gas well information. Based on basic data of the gas well over a historical period, it determines whether a gas well of continuous production type needs to be updated to an intermittent production type, and whether the intermittent duration of a gas well of intermittent production type needs to be adjusted. This can maximize gas well output, stabilize gas well production, and improve gas well recovery rate.

[0007] In a first aspect, embodiments of this disclosure provide a method for determining inter-well opening information of a gas well, the method comprising:

[0008] Based on the gas well type of at least one target gas well, obtain the basic gas well data of the at least one target gas well over a historical period;

[0009] For the at least one target gas well, the hourly gas volume and hourly liquid volume of the target gas well are determined based on the gas well basic data, hourly gas volume function, and hourly liquid volume function of the target gas well.

[0010] For the at least one target gas well, the actual critical hourly flow rate of the target gas well is determined according to the critical liquid-carrying flow rate model corresponding to the target gas well;

[0011] Based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate, the well spacing information of the target gas well is determined.

[0012] Secondly, embodiments of the present invention also provide a gas well inter-well opening information determination device, the device comprising:

[0013] The gas well basic data acquisition module is used to acquire the basic data of the at least one target gas well over a historical period, based on the gas well type of the at least one target gas well.

[0014] The hourly gas volume and hourly liquid volume determination module is used to determine the hourly gas volume and hourly liquid volume of the at least one target gas well based on the gas well basic data, hourly gas volume function and hourly liquid volume function of the target gas well.

[0015] The actual critical hourly flow rate determination module is used to determine the actual critical hourly flow rate of the at least one target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well.

[0016] The gas well intermittent opening information determination module is used to determine the gas well intermittent opening information of the target gas well based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate.

[0017] Thirdly, embodiments of the present invention also provide an electronic device, the electronic device comprising:

[0018] One or more processors;

[0019] Storage device for storing one or more programs.

[0020] When the one or more programs are executed by the one or more processors, the one or more processors implement the gas well intermittent information determination method as described in any embodiment of the present invention.

[0021] Fourthly, embodiments of the present invention also provide a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform the gas well intermittent information determination method as described in any of the embodiments of the present invention.

[0022] The technical solution of this disclosure relates to a method for determining intermittent production information of gas wells. The method includes: acquiring basic gas well data of at least one target gas well over a historical period based on its well type; determining, for each target gas well, the hourly gas volume and hourly liquid volume of the target gas well based on its basic data, hourly gas volume function, and hourly liquid volume function; determining, for each target gas well, the actual critical hourly flow rate of the target gas well based on a critical liquid-carrying flow rate model corresponding to the target gas well; and finally, determining the intermittent production information of the target gas well based on its hourly gas volume, hourly flow rate, and actual critical hourly flow rate. This technical solution, based on the basic data of the gas well over a historical period, determines whether a gas well of continuous production type needs to be updated to an intermittent production type, and whether the intermittent production duration of a gas well of intermittent production type needs to be adjusted. This can maximize gas well production, stabilize gas well production, and improve gas well recovery rate. Attached Figure Description

[0023] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic flowchart of a method for determining inter-well opening information provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of the method for determining gas well spacing information provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of a method for determining gas well spacing information provided in an embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of the gas well intermittent opening information determination device provided in an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0029] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0030] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0031] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0032] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] It is understood that before using the technical solutions disclosed in the various embodiments of this disclosure, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this disclosure in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.

[0034] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose whether to provide personal information to the software or hardware, such as the electronic device, application, server, or storage medium performing the operations of this disclosed technical solution, based on the prompt message.

[0035] As an optional but non-limiting implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0036] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0037] It is understood that the data involved in this technical solution (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and related provisions.

[0038] Before introducing the embodiments of this disclosure, the application scenarios of these embodiments can be illustrated by example. This technical solution can be applied to the determination of intermittent production information for gas wells under continuous or intermittent production systems. By determining the intermittent production information of the target gas well based on its existing production level, and selecting a more suitable intermittent production system for the gas well, the gas well output can be maximized, gas well production can be stabilized, and gas well recovery rate can be improved.

[0039] Example 1

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0041] Figure 1 This is a schematic flowchart of a method for determining the inter-well spacing information of a gas well according to an embodiment of this disclosure. This embodiment of the disclosure is applicable to the situation of determining the inter-well spacing information of a target gas well. The method can be executed by a gas well spacing information determination device, which can be implemented in the form of software and / or hardware. The hardware can be an electronic device such as a server. The electronic device can execute the gas well spacing information determination method provided by this technical solution.

[0042] like Figure 1 As shown, the method includes:

[0043] S110. Based on the gas well type of at least one target gas well, obtain the basic gas well data of at least one target gas well over a historical period.

[0044] Among them, a gas well is a production well drilled to extract natural gas, designed according to the gas field development plan or adjustment plan. A target gas well is a gas well whose inter-well information needs to be determined by staff based on human experience.

[0045] Gas well types include continuous production and intermittent production. Continuous production gas wells refer to wells that operate continuously 24 hours a day. As the development and production time of gas wells gradually increases and the gas reservoir pressure gradually decreases, the gas wells change from continuous production to intermittent operation. Gas wells that meet this type are called intermittent production wells.

[0046] The "historical timeframe" refers to the duration for which staff acquire basic data about the gas well, primarily the preset timeframe preceding the current moment. For example, for a target gas well, staff can use the current date as the cutoff date to collect basic data about the target gas well from the previous year for subsequent calculations and analysis.

[0047] The basic data for continuous production gas wells and intermittent production gas wells differ.

[0048] Optionally, the process of obtaining basic gas well data of the at least one target gas well over a historical period based on its gas well type includes: determining the at least one target gas well based on gas well data of at least one selectable gas well within the target area; when the gas well type of the target gas well is continuous production, the obtained basic gas well data includes casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, and tubing inner and outer diameter parameters; when the gas well type of the target gas well is intermittent production, the obtained basic gas well data includes casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, tubing inner and outer diameter parameters, and daily well opening and closing times.

[0049] Among them, oil-casing pressure refers to the difference between the oil pressure at the wellhead and the casing pressure.

[0050] Wellhead temperature includes shut-in wellhead temperature and wellhead flow temperature. Shut-in wellhead temperature refers to the natural gas temperature measured at the wellhead after the gas well is shut in. Shut-in wellhead temperature is variable; it is high initially, decreases with prolonged shut-in time, eventually equaling the atmospheric temperature, and changes with atmospheric temperature. Wellhead flow temperature refers to the natural gas temperature measured at the wellhead during gas production.

[0051] Gas well separators remove suspended solid and liquid impurities from the medium, reducing the transport load on pipelines and equipment, minimizing corrosion and blockage, and ensuring the safe and reliable operation of pipelines and equipment. The pressure value of a gas well separator is the sum of the pressure at the natural gas outlet or liquid outlet and the pressure difference before and after the natural gas regulating valve or liquid regulating valve.

[0052] The daily gas production volume refers to the gas production volume of a gas well under standard conditions within one day.

[0053] The daily water production value represents the amount of water produced by a gas well during its daily operating cycle. Water production varies significantly throughout the gas well's production cycle, and the production during drainage is adjusted according to actual conditions.

[0054] The relative density value is the ratio of the gas's density to the density of a reference substance under specified conditions. The symbol for relative density is 'd', and it is a dimensionless quantity. Air is generally used as the reference substance; when air is used as the reference substance, the density of dry air under standard conditions (0℃ and 101.325 kPa) is 1.293 kg / m³ (or 1.293 g / L). Relative density has no unit.

[0055] Among them, the inner and outer diameter parameters of the tubing are the inner and outer diameter parameters of the tubing used for gas well extraction.

[0056] For intermittently producing gas wells, there are opening and closing times each day or cycle. These times can be recorded and marked as opening and closing times. The cycle can be one day or multiple days. It should be noted that the data collection content for both continuous and intermittently producing gas wells within the target area is as described above.

[0057] For example, a target gas well is determined based on the gas well data of an intermittent production type gas well in the target area. The basic data of the target gas well are obtained, including casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, tubing inner and outer diameter parameters, and daily well opening and closing times.

[0058] S120. For at least one target gas well, determine the hourly gas volume and hourly liquid volume of the target gas well based on the gas well basic data, hourly gas volume function, and hourly liquid volume function.

[0059] Wherein, the hourly gas production function is a function that determines the hourly gas production of the target gas well. Optionally, the hourly gas production function is: Q h =Q / t, where Q is the daily gas production in m³. 3 Q h Hourly gas volume, unit is m³ 3 / h, where t is the production time, which is 24h for continuous production wells and the well opening time for intermittent production wells, in hours.

[0060] Wherein, the hourly liquid production function is a function that determines the hourly liquid production of the target gas well. Optionally, the hourly liquid production function is: Y h =Y / t, where Y is the daily liquid production in m³. 3 Y h The volume is measured in cubic meters per hour.3 / h, where t is the production time, which is 24h for continuous production wells and the well opening time for intermittent production wells, in hours.

[0061] Specifically, for each target gas well, the hourly gas volume function and hourly liquid volume function mentioned above can be used to process it to obtain the hourly gas volume and hourly liquid volume of the target gas well.

[0062] Optionally, determining the hourly gas volume and hourly liquid volume of the target gas well based on the gas well basic data, hourly gas volume function, and hourly liquid volume function of the target gas well includes: determining the hourly gas volume of the target gas well based on the daily gas production, daily working hours, and hourly gas volume function in the gas well basic data; and determining the hourly liquid volume of the target gas well based on the daily liquid production, daily working hours, and hourly liquid volume function in the gas well basic data.

[0063] Specifically, for continuous production gas wells and intermittent production gas wells, the daily gas production, daily working hours, and hourly gas volume function are obtained from the gas well basic data, and the hourly gas volume is calculated by dividing the daily gas production by the daily working hours; for continuous production gas wells and intermittent production gas wells, the daily liquid production, daily working hours, and hourly liquid volume function are obtained from the gas well basic data, and the hourly liquid volume is calculated by dividing the daily liquid production by the daily working hours.

[0064] For example, suppose the target gas well is a continuous production type gas well, and the daily gas production in the basic data of this continuous production type gas well is 240m³. 3 The daily working hours are 24 hours. Based on the hourly gas volume function, the hourly gas volume of this continuous production type gas well is determined to be 10 m³ / h. 3 / h.

[0065] For example, suppose the target gas well is an intermittent production type gas well, and the daily liquid production in the basic data of this intermittent production type gas well is 240m³. 3 The daily working hours are 12 hours. Based on the hourly liquid volume function, the hourly liquid volume of the gas well of this intermittent production type is determined to be 20 m³ / h. 3 / h.

[0066] S130. For at least one target gas well, determine the actual critical hourly flow rate of the target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well.

[0067] The critical fluid-carrying capacity model is determined based on the critical fluid-carrying capacity. In this embodiment, the critical fluid-carrying capacity can be determined by analyzing and processing the gas well baseline data using the following models: optionally, the models can include the Turner model, Coleman model, Li Min model, simplified Peng Chaoyang model, Belfroid model, etc. The Turner model is a widely used model for determining the critical fluid-carrying capacity. Processing the gas well baseline data using the Turner model will yield the critical fluid-carrying capacity, which can then be used for subsequent calculations and analyses to obtain the critical fluid-carrying capacity model.

[0068] The actual critical hourly flow rate is determined by analyzing the gas well's basic data using a critical fluid-carrying flow rate model. Optionally, the actual critical fluid-carrying flow rate can be divided by 24 to obtain the actual critical hourly flow rate.

[0069] Based on the above technical solutions, it is also necessary to first determine the critical liquid-carrying flow rate model. In this embodiment, the critical liquid-carrying flow rate model can be determined as follows: the basic data of the gas well is processed based on at least one target critical liquid-carrying flow rate determination model to obtain the critical liquid-carrying flow rate of the target gas well; multiple critical liquid-carrying flow rates within the historical time period are fitted to obtain the critical liquid-carrying flow rate model to be used; the fitting coefficient is determined based on the actual liquid-carrying flow rate and the theoretical liquid-carrying flow rate obtained based on the critical liquid-carrying flow rate model to be used; the critical liquid-carrying flow rate model to be used is corrected based on the fitting coefficient to obtain the critical liquid-carrying flow rate model.

[0070] Specifically, the critical liquid-carrying flow rate can be obtained by processing basic data using various models such as the Turner model, Coleman model, Li Min model, simplified Peng Chaoyang model, and Belfroid model. The critical liquid-carrying flow rate exists daily. After obtaining the daily critical liquid-carrying flow rate, the critical liquid-carrying flow rate over the required historical period for the target gas well is calculated. For example, the critical liquid-carrying flow rate for the target gas well over the past year can be calculated. Then, the critical liquid-carrying flow rate over the historical period is fitted to obtain the critical liquid-carrying flow rate model to be used. Since the model to be used is a fitted model, its accuracy has a certain margin of error. To ensure that the adopted critical liquid-carrying flow rate model fits the target gas well, an actual critical liquid-carrying flow rate is obtained, and the fitting coefficient is determined based on the actual critical liquid-carrying flow rate. The fitting coefficient is a coefficient obtained based on an actual liquid-carrying flow rate and the theoretical liquid-carrying flow rate obtained based on the critical liquid-carrying flow rate model to be used. By comparing the theoretically calculated critical liquid-carrying flow rate with the actual gas well production, the actual critical liquid-carrying flow rate of the gas well is determined, and the corresponding coefficient is taken. This coefficient allows adjustment of the critical liquid-carrying flow rate model to be used. Then, the critical liquid-carrying flow rate model is parameter-corrected using fitting coefficients. After correction, the critical liquid-carrying flow rate model is processed using the basic well data of at least one target gas well to obtain the actual critical liquid-carrying flow rate of at least one target gas well. Finally, based on the actual critical liquid-carrying flow rate and the critical hourly flow rate function, the actual critical hourly flow rate is determined.

[0071] Optionally, determining the actual critical hourly flow rate of the target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well includes: processing the basic gas well data of the at least one target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well to obtain the actual critical liquid-carrying flow rate of the at least one target gas well; and determining the actual critical hourly flow rate based on the actual critical liquid-carrying flow rate and the critical hourly flow rate function.

[0072] The actual critical liquid-carrying flow rate of a gas well is the minimum flow rate required to maintain stable gas and liquid production during the gas well's production process. The critical liquid-carrying flow rate is converted to the actual critical liquid-carrying flow rate to calculate the actual critical liquid-carrying flow rate of the target gas well over the target gas historical time period.

[0073] The critical hourly flow rate function is a function that determines the actual critical fluid-carrying flow rate of the target gas well per hour. Optionally, the actual critical fluid-carrying flow rate can be divided by 24.

[0074] For example, assuming the target gas well is a continuous production type gas well, the basic data of the gas well is processed based on the critical liquid carrying capacity model corresponding to this type of gas well, and the actual critical liquid carrying capacity of this continuous production type gas well is found to be 240 m³ / s. 3 / h, divide the actual critical fluid-carrying flow rate of this type of continuous production gas well by 24 to obtain the actual critical hourly flow rate of this type of continuous production gas well as 10m³ / h. 3 / h.

[0075] S140. Determine the well spacing information of the target gas well based on the hourly gas volume, hourly flow rate, and actual critical hourly flow rate.

[0076] Specifically, the production information of the target gas well can be comprehensively evaluated from the three dimensions of hourly gas volume, hourly flow rate, and actual critical hourly flow rate, and the well spacing information of the target gas well can be determined based on this.

[0077] In this embodiment, determining the well-interval information of the target gas well based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate includes: plotting the hourly gas volume, hourly liquid volume, and the actual critical hourly flow rate of the same target gas well within the historical time period on the same chart; if the hourly gas volume is less than or equal to the actual critical hourly flow rate and the hourly gas volume continues to decrease, then determining the well-interval information based on the gas well type of the target gas well.

[0078] Specifically, such as Figure 2 As shown, when the hourly gas production is lower than or equal to the actual critical hourly flow rate, and the liquid production level decreases and continues to decline (as indicated by the red arrow in the figure), it means that liquid begins to accumulate at the bottom of the wellbore, and the gas well can no longer maintain its current production status. The production regime must be changed. For continuously producing gas wells, continuous production should be changed to intermittent production; for intermittently producing gas wells, the intermittent production regime should be appropriately adjusted.

[0079] Optionally, determining the well spacing information based on the well type of the target gas well includes:

[0080] If the target gas well is of intermittent production type, then adjust the intermittent production duration of the target gas well; if the target gas well is of continuous production type, then update the target gas well to intermittent production type.

[0081] Specifically, the intermittent operation regime is determined. This regime is calculated using the hourly gas volume of the intermittent well and the actual critical hourly gas volume. Adjustments are made hourly, based on field experience. The well production time is reduced hourly, and the corresponding parameters are calculated. When the hourly gas volume exceeds the critical liquid-carrying hourly flow rate, the intermittent operation regime time is considered reasonable.

[0082] The technical solution of this disclosure involves obtaining basic data of at least one target gas well over a historical period, based on the gas well type of at least one target gas well. Then, for each target gas well, the hourly gas volume and hourly liquid volume are determined based on the basic data, hourly gas volume function, and hourly liquid volume function. Furthermore, for each target gas well, the actual critical hourly flow rate is determined based on the corresponding critical liquid-carrying flow rate model. Finally, the intermittent production information of the target gas well is determined based on the hourly gas volume, hourly flow rate, and actual critical hourly flow rate. By determining whether a gas well of continuous production type needs to be updated to an intermittent production type based on the basic data of the gas well over a historical period, and whether the intermittent production duration of a gas well of intermittent production type needs to be adjusted, the gas well production can be maximized, gas well production can be stabilized, and gas well recovery rate can be improved.

[0083] Example 2

[0084] As an optional embodiment of the above embodiments, the following example will be used to illustrate this technical solution.

[0085] Collect basic well data for the target gas well. If the gas well is an intermittent production type well, such as... Figure 3 As shown, the following data were collected during the production phase from July 15, 2022 to July 10, 2024: casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, tubing inner diameter external parameters, and daily well opening and closing times.

[0086] Calculate the hourly gas volume for continuous production phases within the data collection timeframe. For intermittent production phases, calculate the hourly gas volume for the production phase from July 15, 2022 to July 10, 2024.

[0087] Q h =Q / t

[0088] In the formula:

[0089] Q h Hourly gas volume, unit is m³ 3 / h; Q is the daily gas production.

[0090] t represents the production time, or the well opening time for intermittent production wells, in hours (h). Calculate the hourly fluid volume during the continuous production phase within the data collection time range. For intermittent production phases, calculate the hourly fluid volume from July 15, 2022 to July 10, 2024.

[0091] Y h =Y / t

[0092] In the formula:

[0093] Y h The volume is measured in cubic meters per hour. 3 / h;

[0094] Y represents the daily liquid production.

[0095] t represents the production time, or the well opening time for intermittent production wells, in hours.

[0096] The critical liquid-carrying capacity is calculated using the widely adopted Turner model as the benchmark. Based on the baseline data, the critical liquid-carrying capacity is calculated. Then, multiple critical liquid-carrying capacity values ​​within the collected time range are fitted to obtain the critical liquid-carrying capacity model to be used. Next, the gas well is analyzed, and the actual liquid-carrying capacity is determined based on the time point at which the gas production begins to decline due to liquid accumulation, combined with the well's production situation. The fitting coefficient is determined based on the actual liquid-carrying capacity and the theoretical liquid-carrying capacity obtained from the critical liquid-carrying capacity model to be used. This data is used to correct the fitting of the critical liquid-carrying capacity model to be used (single-point fitting). In this application example, the fitting coefficient is determined to be 1 through comparison. Finally, the critical liquid-carrying capacity model to be used is corrected based on the fitting coefficient to obtain the final critical liquid-carrying capacity model.

[0097] Based on the critical liquid-carrying flow rate model corresponding to the target gas well, the basic data of the target gas well are processed to obtain the actual critical liquid-carrying flow rate of the target gas well. The actual critical liquid-carrying flow rate is the minimum flow rate required to maintain stable gas and liquid production during the gas well's production process. Based on the actual critical liquid-carrying flow rate and the critical hourly flow rate function, the actual critical hourly flow rate is determined.

[0098] Determine the relevant parameters. Plot the hourly gas volume, hourly liquid volume, and actual critical hourly flow rate on the same graph.

[0099] When hourly gas production is lower than or equal to the actual critical hourly flow rate, and the liquid production level decreases and continues to decline (as shown by the red arrow in the figure), it indicates that liquid has begun to accumulate at the bottom of the wellbore, and the gas well can no longer maintain its current production status. The production regime must be changed. For continuously producing gas wells, continuous production should be changed to intermittent production; for intermittently producing gas wells, the intermittent production regime should be appropriately adjusted.

[0100] The intermittent operation schedule is determined by calculating the hourly gas volume of the intermittent well and the actual critical hourly gas volume. Adjustments are made hourly based on field experience. The well production time is reduced hourly, and the corresponding parameters are calculated. When the hourly gas volume exceeds the critical liquid-carrying hourly flow rate, the intermittent operation schedule is considered reasonable.

[0101] It will be apparent to those skilled in the art that the present invention can encompass different numbers and combinations of slugs. The embodiments mentioned above are exemplary and non-limiting; the scope of the invention is defined by the claims rather than the foregoing description, and therefore all variations intended to fall within the equivalent meaning and scope of the claims are included within the present invention. Based on historical data of the gas well, it is determined whether a gas well of continuous production type needs to be upgraded to an intermittent production type, and whether the intermittent production duration of a gas well of intermittent production type needs to be adjusted. Selecting a more suitable intermittent production regime for the gas well can maximize gas well output, stabilize gas well production, and improve gas well recovery rate.

[0102] Example 3

[0103] Figure 4 This is a schematic diagram of the structure of an image generation apparatus provided in an embodiment of this disclosure, as shown below. Figure 4 As shown, the device includes: a gas well basic data acquisition module 210, an hourly gas volume and hourly liquid volume determination module 220, an actual critical hourly flow rate determination module 230, and a gas well intermittent information determination module 240.

[0104] The gas well basic data acquisition module 210 is used to acquire the basic data of the at least one target gas well over a historical period based on the gas well type of the at least one target gas well; the hourly gas volume and hourly liquid volume determination module 220 is used to determine the hourly gas volume and hourly liquid volume of the at least one target gas well based on the gas well basic data, hourly gas volume function, and hourly liquid volume function of the target gas well; the actual critical hourly flow rate determination module 230 is used to determine the actual critical hourly flow rate of the at least one target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well; and the gas well inter-well information determination module 240 is used to determine the gas well inter-well information of the target gas well based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate.

[0105] Based on the above technical solutions, the gas well basic data acquisition module 210 includes: determining the at least one target gas well based on the gas well data of at least one selectable gas well in the target area; when the gas well type of the target gas well is continuous production type, the acquired gas well basic data of the target gas well includes casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, and tubing inner and outer diameter parameters; when the gas well type of the target gas well is intermittent production type, the acquired gas well basic data of the target gas well includes casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, tubing inner and outer diameter parameters, and daily well opening and closing time.

[0106] Based on the above technical solutions, the hourly gas volume and hourly liquid volume determination module 220 includes: determining the hourly gas volume of the target gas well based on the daily gas production, daily working hours and hourly gas volume function in the gas well basic data; and determining the hourly liquid volume of the target gas well based on the daily liquid production, daily working hours and hourly liquid volume function in the gas well basic data.

[0107] Based on the above technical solutions, the actual critical hourly flow rate determination module 230 includes a critical liquid-carrying flow rate determination submodule, a critical liquid-carrying flow rate model generation submodule, a fitting coefficient determination submodule, and a critical liquid-carrying flow rate model generation submodule.

[0108] The critical liquid-carrying flow rate determination submodule processes the basic data of the gas well based on at least one target critical liquid-carrying flow rate determination model to obtain the critical liquid-carrying flow rate of the target gas well.

[0109] The critical liquid carrying flow rate model generation submodule fits and processes multiple critical liquid carrying flow rates within the historical time period to obtain the critical liquid carrying flow rate model to be used.

[0110] The fitting coefficient determination submodule determines the fitting coefficient based on the actual liquid carrying flow rate and the theoretical liquid carrying flow rate obtained based on the critical liquid carrying flow rate model to be used.

[0111] The critical liquid-carrying flow rate model generation submodule corrects the critical liquid-carrying flow rate model to be used based on the fitting coefficients to obtain the critical liquid-carrying flow rate model.

[0112] The critical liquid-carrying flow rate model generation submodule further processes the basic data of the at least one target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well to obtain the actual critical liquid-carrying flow rate of the at least one target gas well; and determines the actual critical hourly flow rate based on the actual critical liquid-carrying flow rate and the critical hourly flow rate function.

[0113] Based on the above technical solutions, the gas well intermittent opening information determination module 240 includes a drawing submodule and a gas well intermittent opening information determination submodule.

[0114] The drawing submodule plots the hourly gas volume, hourly liquid volume, and actual critical hourly flow rate of the same target gas well within the historical time period in the same icon.

[0115] The gas well intermittent opening information determination submodule determines the gas well intermittent opening information based on the gas well type of the target gas well if the hourly gas volume is less than or equal to the actual critical hourly flow rate and the hourly gas volume continues to decrease.

[0116] The gas well intermittent production information determination submodule further includes: if the gas well type of the target gas well is intermittent production type, then adjust the intermittent production duration of the target gas well; if the gas well type of the target gas well is continuous production type, then update the target gas well to intermittent production type.

[0117] The technical solution of this disclosure involves obtaining basic gas well data for at least one target gas well over a historical period, based on the well type of that target gas well. Then, for each target gas well, the hourly gas volume and hourly liquid volume are determined based on the basic gas well data, hourly gas volume function, and hourly liquid volume function. Further, for each target gas well, the actual critical hourly flow rate is determined based on the corresponding critical liquid-carrying flow rate model. Finally, the well intermittent operation information of the target gas well is determined based on the hourly gas volume, hourly flow rate, and actual critical hourly flow rate. This technical solution determines the well intermittent operation information of the target gas well based on the hourly gas volume, hourly flow rate, and actual critical hourly flow rate, enabling operators to select a more suitable intermittent operation regime for the gas well, thereby maximizing gas well production, stabilizing gas well production, and improving gas well recovery rate.

[0118] The gas well intermittent opening information determination device provided in this disclosure can execute the gas well intermittent opening information determination method provided in any embodiment of this disclosure, and has the corresponding functional modules and beneficial effects of executing the method.

[0119] It is worth noting that the various units and modules included in the above-mentioned device are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the protection scope of the embodiments of this disclosure.

[0120] Example 4

[0121] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. Refer to the following... Figure 5 It illustrates an electronic device suitable for implementing embodiments of the present disclosure (e.g., Figure 5 The diagram below shows the structure of the terminal device or server 500. The terminal device in this embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and vehicle terminals (e.g., vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Figure 5 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0122] like Figure 5 As shown, electronic device 500 may include a processing unit (e.g., central processing unit, graphics processor, etc.) 501, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 502 or a program loaded from storage device 508 into random access memory (RAM) 503. The RAM 503 also stores various programs and data required for the operation of electronic device 500. The processing unit 501, ROM 502, and RAM 503 are interconnected via bus 504. An edit / output (I / O) interface 505 is also connected to bus 504.

[0123] Typically, the following devices can be connected to I / O interface 505: input devices 506 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 507 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 508 including, for example, magnetic tapes, hard disks, etc.; and communication devices 509. Communication device 509 allows electronic device 500 to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 5 An electronic device 500 with various devices is shown; however, it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed alternatively.

[0124] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 509, or installed from a storage device 508, or installed from a ROM 502. When the computer program is executed by the processing device 501, it performs the functions defined in the methods of embodiments of this disclosure.

[0125] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0126] The electronic device provided in this embodiment and the gas well inter-opening information determination method provided in the above embodiments belong to the same inventive concept. Technical details not described in detail in this embodiment can be found in the above embodiments, and this embodiment has the same beneficial effects as the above embodiments.

[0127] Example 5

[0128] This disclosure provides a computer storage medium storing a computer program that, when executed by a processor, implements the gas well intermittent information determination method provided in the above embodiments.

[0129] It should be noted that the computer-readable medium described in this disclosure can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0130] In some implementations, the server may communicate using any currently known or future-developed network protocol such as HTTP (Hypertext Transfer Protocol) and may interconnect with digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include local area networks (“LANs”), wide area networks (“WANs”), the Internet (e.g., the Internet of Things), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any currently known or future-developed networks.

[0131] The aforementioned computer-readable medium may be included in the aforementioned electronic device; or it may exist independently and not assembled into the electronic device.

[0132] The aforementioned computer-readable medium carries one or more programs that, when executed by the electronic device, cause the electronic device to:

[0133] Based on the gas well type of at least one target gas well, obtain the basic gas well data of the at least one target gas well over a historical period;

[0134] For the at least one target gas well, the hourly gas volume and hourly liquid volume of the target gas well are determined based on the gas well basic data, hourly gas volume function, and hourly liquid volume function of the target gas well.

[0135] For the at least one target gas well, the actual critical hourly flow rate of the target gas well is determined according to the critical liquid-carrying flow rate model corresponding to the target gas well;

[0136] Based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate, the well spacing information of the target gas well is determined.

[0137] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including but not limited to object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0138] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0139] The units described in the embodiments of this disclosure can be implemented in software or hardware. The names of the units are not, in some cases, intended to limit the specific unit.

[0140] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0141] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0142] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0143] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0144] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A method for determining inter-well information of gas wells, characterized in that, include: Based on the gas well type of at least one target gas well, obtain the basic gas well data of the at least one target gas well over a historical period; For the at least one target gas well, the hourly gas volume and hourly liquid volume of the target gas well are determined based on the gas well basic data, hourly gas volume function, and hourly liquid volume function of the target gas well. For the at least one target gas well, the actual critical hourly flow rate of the target gas well is determined according to the critical liquid-carrying flow rate model corresponding to the target gas well; Based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate, the well spacing information of the target gas well is determined.

2. The method according to claim 1, characterized in that, The step of obtaining basic gas well data for at least one target gas well over a historical period, based on the gas well type of at least one target gas well, includes: The at least one target gas well is determined based on the gas well data of at least one gas well to be selected within the target area; When the target gas well is of the continuous production type, the basic data of the target gas well obtained are the casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, and tubing inner and outer diameter parameters. When the target gas well is of the intermittent production type, the basic data of the target gas well obtained are the casing pressure, wellhead temperature, separator pressure, daily gas production, daily water production, gas relative density, tubing inner and outer diameter parameters, and daily well opening and closing time.

3. The method according to claim 1, characterized in that, The step of determining the hourly gas volume and hourly liquid volume of the target gas well based on its basic gas well data, hourly gas volume function, and hourly liquid volume function includes: Based on the daily gas production, daily working hours, and hourly gas volume function in the gas well basic data, the hourly gas volume of the target gas well is determined. The hourly liquid production of the target gas well is determined based on the daily liquid production, daily working hours, and hourly liquid production function in the gas well basic data.

4. The method according to claim 1, characterized in that, The method further includes: The basic data of the gas well are processed based on at least one target critical fluid carrying capacity determination model to obtain the critical fluid carrying capacity of the target gas well. By fitting multiple critical liquid-carrying flow rates within the historical time period, a critical liquid-carrying flow rate model to be used is obtained. The fitting coefficients are determined based on the actual liquid carrying flow rate and the theoretical liquid carrying flow rate obtained based on the critical liquid carrying flow rate model to be used. The critical liquid-carrying flow rate model to be used is corrected based on the fitting coefficients to obtain the critical liquid-carrying flow rate model.

5. The method according to claim 4, characterized in that, The step of determining the actual critical hourly flow rate of the target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well includes: Based on the critical liquid-carrying flow rate model corresponding to the target gas well, the basic data of the gas well of the at least one target gas well are processed to obtain the actual critical liquid-carrying flow rate of the at least one target gas well. The actual critical hourly flow rate is determined based on the actual critical liquid carrying flow rate and the critical hourly flow rate function.

6. The method according to claim 1, characterized in that, The step of determining the well-to-well information of the target gas well based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate includes: The hourly gas volume, hourly liquid volume, and actual critical hourly flow rate of the same target gas well within the historical time period are plotted on the same chart. If the hourly gas volume is less than or equal to the actual critical hourly flow rate and the hourly gas volume continues to decrease, then the well-to-well information is determined based on the well type of the target gas well.

7. The method according to claim 6, characterized in that, The step of determining the gas well inter-well information based on the gas well type of the target gas well includes: If the target gas well is of the intermittent production type, then adjust the intermittent production duration of the target gas well; If the target gas well is of continuous production type, then the target gas well is adjusted to be updated to intermittent production type.

8. A device for determining inter-well opening information, characterized in that, include: The gas well basic data acquisition module is used to acquire the basic data of the at least one target gas well over a historical period, based on the gas well type of the at least one target gas well. The hourly gas volume and hourly liquid volume determination module is used to determine the hourly gas volume and hourly liquid volume of the at least one target gas well based on the gas well basic data, hourly gas volume function and hourly liquid volume function of the target gas well. The actual critical hourly flow rate determination module is used to determine the actual critical hourly flow rate of the at least one target gas well based on the critical liquid-carrying flow rate model corresponding to the target gas well. The gas well intermittent opening information determination module is used to determine the gas well intermittent opening information of the target gas well based on the hourly gas volume, the hourly flow rate, and the actual critical hourly flow rate.

9. An electronic device, characterized in that, The electronic device includes: One or more processors; Storage device for storing one or more programs. When one or more programs are executed by one or more processors, the one or more processors implement the gas well intermittent information determination method as described in any one of claims 1-7.

10. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions, when executed by a computer processor, are used to perform the gas well intermittent information determination method as described in any one of claims 1-7.

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