Method and apparatus for determining a lift process

Abstract

The application discloses a method and device for determining a lifting process, and belongs to the technical field of oil and gas production. The method comprises the following steps: obtaining well condition information of a target oil well, and obtaining a plurality of alternative lifting processes according to the well condition information. Production equipment information of each alternative lifting process is determined, first input resources, equipment annual operation and maintenance resources and equipment overhaul and replacement resources of each alternative lifting process are determined based on the production equipment information, and an evaluation period, an equipment overhaul cycle and equipment residual resources are determined. Thus, the total resources of each alternative lifting process within the corresponding evaluation period are determined according to the determined resources, period and cycle. The target lifting process corresponding to the target oil well is determined according to the total resources of each alternative lifting process within the corresponding evaluation period. When the target lifting process is determined, the total resources within the evaluation period corresponding to each alternative lifting process are used as the basis, so that the target lifting process determined consumes less resources and is suitable for use.

Description

Technical Field

[0001] This application relates to the field of oil and gas production technology, and in particular to a method and apparatus for determining a lifting process. Background Technology

[0002] In the field of oil and gas production technology, crude oil to be extracted is often located deep underground. When the energy within the formation is insufficient, oil wells used for extraction often cannot flow naturally. Therefore, appropriate lifting methods are needed to bring the crude oil from deep underground to the surface, thereby enabling its extraction.

[0003] In related technologies, several lifting processes are first determined based on factors such as the wellbore trajectory and crude oil properties. Then, considering the operational indicators of each lifting process and from a technical feasibility perspective, the lifting process selected for practical application is chosen from among these options.

[0004] However, the relevant technologies consider only a few factors when determining the lifting process, and the selected lifting process may require a lot of resources. Summary of the Invention

[0005] This application provides a method and apparatus for determining a lifting process, addressing the problems of related technologies that consider only a limited number of factors and may require significant resource consumption to select the appropriate lifting process. The technical solution is as follows:

[0006] On the one hand, a method for determining a lifting process is provided, the method comprising:

[0007] Obtain well condition information of the target oil well, and obtain multiple candidate upgrading processes based on the well condition information;

[0008] The production equipment information for each candidate upgrading process is determined. Based on the production equipment information, the initial equipment investment resources, annual equipment operation and maintenance resources, and equipment repair and replacement resources for each candidate upgrading process are determined. The production equipment information is used to indicate the model and quantity of surface equipment and underground equipment.

[0009] Determine the evaluation period, equipment maintenance cycle, and remaining equipment resources for each candidate upgrading process;

[0010] The total resources for each candidate upgrade process within the corresponding evaluation period are determined based on the initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment maintenance cycle, and remaining equipment resources.

[0011] The target lift process corresponding to the target oil well is determined based on the total resources of each candidate lift process within the corresponding evaluation period.

[0012] In an exemplary embodiment, determining the production equipment information of each candidate lifting process includes: obtaining the pump setting depth of the target oil well; and determining the production equipment information of each candidate lifting process according to the well condition information and the pump setting depth.

[0013] In an exemplary embodiment, determining the total resources of each candidate lifting process within the corresponding evaluation period according to the initial resource input of the equipment corresponding to each candidate lifting process, the annual operation and maintenance resources of the equipment, the equipment overhaul and replacement resources, the evaluation period, the equipment overhaul cycle, and the residual resources of the equipment includes: for any candidate lifting process, according to the initial resource input of the equipment corresponding to the any candidate lifting process, the annual operation and maintenance resources of the equipment, the equipment overhaul and replacement resources, the evaluation period, the equipment overhaul cycle, and the residual resources of the equipment, determining the total resources of the any candidate lifting process within the corresponding evaluation period according to the following relationship:

[0014]

[0015] When i = 1, F(i) = F1 + F2

[0016] When 1 < i ≤ N and mod(i - 1, k) = 0, F(i) = F2 + F3 - F4 × int(i / N)

[0017] When 1 < i ≤ N and mod(i - 1, k) ≠ 0, F(i) = F2 - F4 × int(i / N)

[0018] Wherein, F1 includes the initial resource input of the equipment, F2 includes the annual operation and maintenance resources of the equipment, F3 includes the equipment overhaul and replacement resources, F4 includes the residual resources of the equipment, N includes the evaluation period, k includes the equipment overhaul cycle, M includes the total resources of the any candidate lifting process within the corresponding evaluation period, mod includes the remainder function, and int includes the floor function.

[0019] In an exemplary embodiment, determining the target lifting process corresponding to the target oil well according to the total resources of each candidate lifting process within the corresponding evaluation period includes: in response to the same evaluation period corresponding to each candidate lifting process, determining the candidate lifting process with the smallest total resources among each candidate lifting process as the target lifting process.

[0020] In an exemplary embodiment, determining the target lift process corresponding to the target oil well based on the total resources of each candidate lift process within its corresponding evaluation period includes: in response to the different evaluation periods corresponding to each candidate lift process, determining the ratio of the total resources of each candidate lift process within its corresponding evaluation period to the evaluation period corresponding to each candidate lift process, thereby obtaining the annual average resources of each candidate lift process; and determining the candidate lift process with the smallest annual average resources as the target lift process.

[0021] In an exemplary embodiment, the initial resource allocation for the device includes obtaining the resources required for the ground equipment and the underground equipment according to the model and the quantity.

[0022] In an exemplary embodiment, the annual operation and maintenance resources of the equipment include the sum of the resources required to operate and maintain the ground equipment each year.

[0023] In an exemplary embodiment, the equipment maintenance and update resources include the sum of resources required for inspecting, repairing, and replacing the underground equipment.

[0024] In an exemplary embodiment, the evaluation period includes the maximum service life of each ground device among its corresponding service life.

[0025] On the other hand, an apparatus for determining a lifting process is provided, the apparatus comprising:

[0026] The acquisition module is used to acquire well condition information of the target oil well and acquire multiple candidate upgrading processes based on the well condition information.

[0027] The first determining module is used to determine the production equipment information of each candidate upgrading process, and to determine the initial investment resources, annual operation and maintenance resources, and repair and replacement resources of each candidate upgrading process based on the production equipment information. The production equipment information is used to indicate the model and quantity of the surface equipment and the underground equipment.

[0028] The second determination module is used to determine the evaluation period, equipment maintenance cycle and equipment residual resources for each candidate upgrading process.

[0029] The third determining module is used to determine the total resources of each candidate upgrading process within the corresponding evaluation period based on the initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment maintenance cycle, and equipment residual resources.

[0030] The fourth determination module is used to determine the target lifting process corresponding to the target oil well based on the total resources of each candidate lifting process within the corresponding evaluation period.

[0031] In an exemplary embodiment, the first determination module is configured to obtain the pump setting depth of the target oil well; and determine the production equipment information of each candidate lifting process according to the well condition information and the pump setting depth.

[0032] In an exemplary embodiment, for any candidate lifting process, the third determination module is configured to determine the total resources of the any candidate lifting process within the corresponding evaluation period according to the initial resource input of the equipment corresponding to the any candidate lifting process, the annual operation and maintenance resources of the equipment, the overhaul and replacement resources of the equipment, the evaluation period, the equipment overhaul cycle, and the residual resources of the equipment, according to the following relationship:

[0033]

[0034] When i = 1, F(i) = F1 + F2

[0035] When 1 < i ≤ N and mod(i - 1, k) = 0, F(i) = F2 + F3 - F4 × int(i / N)

[0036] When 1 < i ≤ N and mod(i - 1, k) ≠ 0, F(i) = F2 - F4 × int(i / N)

[0037] Wherein, the F1 includes the initial resource input of the equipment, the F2 includes the annual operation and maintenance resources of the equipment, the F3 includes the overhaul and replacement resources of the equipment, the F4 includes the residual resources of the equipment, the N includes the evaluation period, the k includes the equipment overhaul cycle, the M includes the total resources of the any candidate lifting process within the corresponding evaluation period, mod includes the remainder function, and int includes the floor function.

[0038] In an exemplary embodiment, the fourth determination module is configured to, in response to the evaluation periods corresponding to each candidate lifting process being the same, determine the candidate lifting process with the minimum total resources among each candidate lifting process as the target lifting process.

[0039] In an exemplary embodiment, the fourth determination module is configured to, in response to the evaluation periods corresponding to each candidate lifting process being different, determine the ratio of the total resources of each candidate lifting process within the corresponding evaluation period to the evaluation period corresponding to each candidate lifting process, to obtain the annual average resources of each candidate lifting process; and determine the candidate lifting process with the minimum annual average resources as the target lifting process.

[0040] In an exemplary embodiment, the initial resource input of the equipment includes the resources required to obtain the surface equipment and the underground equipment according to the model and the quantity.

[0041] In an exemplary embodiment, the annual operation and maintenance resources of the equipment include the sum of the resources required to operate and maintain the ground equipment each year.

[0042] In an exemplary embodiment, the equipment maintenance and update resources include the sum of resources required for inspecting, repairing, and replacing the underground equipment.

[0043] In an exemplary embodiment, the evaluation period includes the maximum service life of each ground device among its corresponding service life.

[0044] The beneficial effects of the technical solutions provided in this application include at least the following:

[0045] In determining the target lift process based on multiple candidate lift processes, the total resources of each candidate lift process within its corresponding evaluation period are used as the basis. Therefore, the determined target lift process requires fewer resources and is suitable for implementation. Furthermore, the total resources of each candidate lift process within its corresponding evaluation period are determined based on the well condition information of the target oil well, ensuring objectivity, accuracy, and a simple and quick determination process that meets the application needs of relevant technical personnel. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application;

[0048] Figure 2 This is a flowchart illustrating a method for determining a lifting process according to an embodiment of this application;

[0049] Figure 3 This is a schematic diagram of a device for determining a lifting process provided in an embodiment of this application. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0051] This application provides a method for determining a lifting process, which can be applied to computer equipment. For example, see... Figure 1The computer device includes a memory 11 and a processor 12. The memory 11 stores at least one instruction, which is loaded and executed by the processor 12 to implement the method for determining the lifting process provided in the embodiments of this application.

[0052] The computer device stores well condition information of the target oil well. Based on this stored well condition information, the computer device determines the target lift process, ensuring that the determined lift process is suitable for the target oil well. Alternatively, if the computer device is connected to other computers, it can obtain the aforementioned well condition information from those computers and thus determine the target lift process based on that information.

[0053] For example, the computer device is any electronic product capable of human-computer interaction with a user through one or more means such as a keyboard, touchpad, touchscreen, remote control, voice interaction, or handwriting device. Electronic products include, but are not limited to: PCs (Personal Computers), mobile phones, smartphones, PDAs (Personal Digital Assistants), wearable devices, Pocket PCs (PPCs), and tablet computers. Alternatively, the computer device may be a server, a server cluster consisting of multiple servers, or a cloud computing service center.

[0054] Based on the above Figure 1 The computer equipment shown is described in the following document. Figure 2 This application provides a method for determining a lifting process, which includes the following steps.

[0055] 201. Obtain well condition information of the target oil well, and obtain multiple alternative upgrading processes based on the well condition information.

[0056] The well condition information of the target oil well includes, but is not limited to, the well depth, maximum inclination angle, maximum total angle variation rate, viscosity of the crude oil to be extracted, and predicted daily fluid production, etc. This embodiment does not limit the well condition information of the target oil well. For example, the target oil well in this embodiment includes an oil well used for extracting extra-heavy oil, where extra-heavy oil refers to oil with a viscosity of (1-5)×10⁻⁶. 4 Crude oil with a density of mPa·s (unit: millipascals·second) and a specific gravity greater than 0.95.

[0057] After obtaining the well condition information of the target oil well, multiple candidate lifting processes are further obtained based on the well condition information. It can be seen that the multiple candidate lifting processes are determined based on the actual well condition information, and this embodiment does not limit the multiple candidate lifting processes. For example, the multiple candidate lifting processes include, but are not limited to: a hollow rod electric heating lifting process with a rod pump for a pumping unit, an electric submersible screw pump lifting process, and a hydraulic jet pump lifting process.

[0058] 202. Determine the production equipment information for each candidate upgrade process. Based on the production equipment information, determine the initial investment resources, annual operation and maintenance resources, and repair and replacement resources for each candidate upgrade process. The production equipment information is used to indicate the model and quantity of surface and underground equipment.

[0059] In an exemplary embodiment, determining the production equipment information for each candidate lift process includes: obtaining the pump hanger depth of the target oil well. The production equipment information for each candidate lift process is determined based on well condition information and the pump hanger depth.

[0060] The pump hanger depth refers to the depth from the wellhead to the pumping station. The production equipment information determined based on well condition information and the pump hanger depth indicates the model and quantity of production equipment required for crude oil extraction from the target well. This production equipment includes both surface and underground equipment. The production equipment corresponding to different alternative lifting processes may also differ, as illustrated by the following examples.

[0061] Scenario A1: The alternative lifting process includes a hollow rod electric heating lifting process using a rod pump paired with a pumping unit. Therefore, the surface equipment in the production equipment includes, but is not limited to, the pumping unit, wellhead equipment, motors, motor control cabinets, and motor heating control cabinets. The underground equipment in the production equipment includes, but is not limited to, hollow rods, pumping units, tubing, cables, and wellbore equipment.

[0062] Scenario A2: The alternative lifting process includes electric submersible screw pump lifting. Accordingly, the surface equipment in the production equipment includes, but is not limited to, wellhead equipment and control cabinets, and the underground equipment in the production equipment includes, but is not limited to, screw pump units, sensors, tubing, cables, and wellbore accessories.

[0063] Scenario A3: Alternative lifting processes include hydraulic jet pump lifting processes. Surface equipment in the production equipment includes, but is not limited to, wellhead equipment, surface booster pumps, control cabinets, and surface three-phase separators. Underground equipment in the production equipment includes, but is not limited to, hydraulic pumps, nozzle throats, tubing, and wellbore accessories.

[0064] In an exemplary embodiment, the initial equipment investment resources include the resources required to acquire the surface equipment and underground equipment according to their model and quantity. Since the production equipment information indicates the model and quantity, the corresponding surface equipment and underground equipment can be acquired based on the instructions in the production equipment information. That is, the acquired surface equipment and underground equipment have the model and quantity indicated in the production equipment information. The resources consumed in acquiring the surface equipment and underground equipment in this manner constitute the initial equipment investment resources. The initial equipment investment resources may also differ depending on the alternative upgrading process; examples are provided below.

[0065] For situation A1, situation B1: In the process of electric heating and lifting of hollow rods with rod pumps for oil pumping units, the initial resources invested in the equipment include, but are not limited to: obtaining the resources required for oil pumping units, wellhead equipment, motors, motor control cabinets, motor heating control cabinets, hollow rods, oil pumps, tubing, cables and wellbore supporting equipment according to the model and quantity indicated in the production equipment information.

[0066] Case B2, corresponding to Case A2: In the electric submersible screw pump lifting process, the initial equipment input resources include, but are not limited to: obtaining the resources required for wellhead equipment, control cabinet, screw pump unit, sensors, tubing, cables and wellbore supporting equipment according to the model and quantity indicated in the production equipment information.

[0067] For situation B2 corresponding to situation A2: In the hydraulic jet pump lifting process, the initial equipment input resources include, but are not limited to: obtaining the resources required for wellhead equipment, surface booster pump, control cabinet, surface three-phase separator, hydraulic pump, nozzle throat, tubing and wellbore supporting equipment according to the model and quantity indicated in the production equipment information.

[0068] It should be noted that the initial resource investment in the above-described equipment is merely an example and is not intended to limit the embodiments of this application. Of course, in addition to using the resources required to obtain all production equipment as the initial investment resources as described above, this embodiment may also select some production equipment from all production equipment and use the resources required to obtain those equipment as the initial investment resources. For example, the selected production equipment is critical equipment that is important and plays a key role in practical applications. For instance, in cases B1 and B2 above, the wellbore supporting equipment is not considered critical production equipment. In case B3 above, neither the nozzle throat nor the wellbore supporting equipment is considered critical production equipment.

[0069] In an exemplary embodiment, the annual operation and maintenance resources for the equipment include the sum of resources required annually for operating and maintaining the ground equipment. The operating environment of the ground equipment is often relatively stable, thus eliminating the need for periodic replacement; annual maintenance is sufficient to ensure its normal and stable operation. The sum of resources required annually for operating and maintaining the ground equipment refers to the sum of resources required for ground equipment maintenance, ground equipment operation, and the human resources required during the maintenance and operation processes.

[0070] For example, ground equipment maintenance includes lubricating certain components of the equipment; therefore, the resources required for ground equipment maintenance include the resources needed to obtain lubricating oil. Ground equipment operation consumes electrical energy; therefore, the resources required for ground equipment operation include the resources needed to consume that electrical energy. Maintenance and operation often involve manual operations, such as manually applying lubricating oil during maintenance and manually starting the ground equipment during operation; the resources required for manual labor during maintenance and operation are precisely the resources expended for these manual operations.

[0071] The following examples illustrate the annual operation and maintenance resources of equipment corresponding to different alternative selection and upgrading processes.

[0072] Corresponding to situation A1, situation C1: In the hollow rod electric heating lift process with a rod pump for an oil pumping unit, the annual operation and maintenance resources for the equipment include, but are not limited to: the sum of the resources required for the annual maintenance and operation of the oil pumping unit, wellhead equipment, motor, motor control cabinet, and motor heating control cabinet, as well as the manpower required during the maintenance and operation process. For example, the annual resources required for motor maintenance and operation, and the manpower required during the maintenance and operation process, include 10% of the resources required for the motor itself.

[0073] Case C2, corresponding to case A2: In the electric submersible screw pump lifting process, the annual operation and maintenance resources of the equipment include, but are not limited to: the sum of the annual maintenance and operation of the wellhead equipment and control cabinet, and the human resources required during the maintenance and operation process.

[0074] Case C3, corresponding to case A3: In the hydraulic jet pump lifting process, the annual operation and maintenance resources of the equipment include, but are not limited to: the sum of the annual resources required for the maintenance and operation of the wellhead equipment, the surface booster pump, the control cabinet and the surface three-phase separator, and the manpower required during the maintenance and operation process.

[0075] It is understood that, for the various ground equipment listed in cases C1-C3, this embodiment may also disregard some of these ground equipment and only consider the sum of the maintenance and operation of the remaining ground equipment and the human resources required for maintenance and operation as the annual operation and maintenance resources for the equipment. This embodiment does not limit this. For example, in cases C1 and C2, the wellhead device may be disregarded. In case C3, the wellhead device, control cabinet, and surface three-phase separator may be disregarded.

[0076] In an exemplary embodiment, the equipment maintenance and upgrade resources include the sum of resources required for inspecting, repairing, and replacing underground equipment. Compared to the relatively stable operating environment of surface equipment described above, the operating environment of underground equipment is often much harsher. For example, underground equipment may operate in high-temperature and high-pressure environments and may come into contact with corrosive or abrasive fluids. Therefore, it is necessary to inspect underground equipment regularly and then repair or replace it based on the inspection results. Thus, the equipment maintenance and upgrade resources include the sum of resources required for inspecting, repairing, and replacing underground equipment.

[0077] The following examples illustrate the equipment maintenance and upgrade resources corresponding to different alternative selection and upgrading processes.

[0078] Corresponding to Situation A1, Situation D1: In the hollow rod electric heating lift process for a rod pump in a pumping unit, equipment maintenance and replacement resources include, but are not limited to, the sum of resources required for inspecting, repairing, and replacing the hollow rod, pump, tubing, cables, and wellbore equipment. For example, the resources for inspecting, repairing, and replacing the hollow rod include 30% of the hollow rod's value, and the resources for inspecting, repairing, and replacing the tubing include 30% of the tubing's value.

[0079] Case D2, corresponding to case A2: In the electric submersible screw pump lifting process, the equipment maintenance and upgrade resources include, but are not limited to: the sum of resources required for inspecting, repairing and replacing the screw pump unit, sensors, tubing, cables and wellbore accessories.

[0080] Case D3, corresponding to Case A3: In the hydraulic jet pump lifting process, the equipment maintenance and replacement resources include, but are not limited to: the sum of resources required for inspecting, repairing and replacing hydraulic pumps, nozzle throats, tubing and wellbore supporting equipment.

[0081] It is understood that, among the multiple underground devices listed in situations D1-D3, this embodiment may disregard some of them and consider only the sum of resources required for inspecting, repairing, and replacing the remaining underground devices as the equipment maintenance and replacement resources. For example, in situation D2, sensors, oil pipes, and cables may be disregarded. In situation D3, oil pipes may be disregarded. This embodiment does not limit the disregarded underground devices; they can be determined based on experience or actual needs.

[0082] 203. Determine the evaluation period, equipment maintenance cycle, and remaining equipment resources for each candidate upgrading process.

[0083] The evaluation period is the timeframe used to evaluate each candidate upgrading process. This embodiment selects candidate upgrading processes based on the total resources available for each process within the evaluation period. It is understood that this embodiment does not impose a fixed evaluation period; the evaluation period can be determined based on experience. For determining the total resources available for each candidate upgrading process within the evaluation period, please refer to section 204 below. For selecting candidate upgrading processes based on the total resources, please refer to section 205 below; these details will not be elaborated upon here.

[0084] Besides determining the evaluation period based on experience, it can also be determined based on the service life of each surface-level device in the production equipment. In an exemplary embodiment, the evaluation period includes the maximum service life among the service lives of each surface-level device. As explained in section 202, surface-level equipment operates in a more stable environment, while underground equipment operates in a harsher environment; therefore, the service life of surface-level equipment is often greater than that of underground equipment. Therefore, in this embodiment, the evaluation period is determined based on the service life of each surface-level device, that is, the maximum service life among the service lives of each surface-level device is used as the evaluation period. It is understood that the surface-level devices in different alternative upgrading processes are different, and therefore the evaluation periods for different alternative upgrading processes may be the same or different; this embodiment does not limit this.

[0085] As described in section 202, each candidate upgrading process requires regular inspections of underground equipment to facilitate repair or replacement based on the inspection results. Accordingly, the equipment maintenance cycle is the cycle for inspecting, repairing, and replacing underground equipment. For example, in practical applications, the average equipment maintenance cycle of all wells within the oilfield block described for the target oil well can be used as the equipment maintenance cycle. Alternatively, the equipment maintenance cycle can be determined based on experience. This embodiment does not limit the equipment maintenance cycle; for example, it may be two years, three years, or more.

[0086] Furthermore, each piece of production equipment depreciates throughout the evaluation period after its initial use, causing the actual resources corresponding to the equipment to continuously decrease compared to the initial investment. The remaining resources of the production equipment in the final year of the evaluation period constitute the aforementioned residual resources. For example, in this embodiment, the product of the initial investment resources and a coefficient less than one is used as the residual resources. This embodiment does not limit the value of this coefficient. As long as the coefficient is less than one, its value can be determined based on experience or actual needs. For example, the coefficient is 5%.

[0087] 204. Determine the total resources of each candidate promotion process within the corresponding evaluation period based on the initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment repair cycle, and equipment residual resources corresponding to each candidate promotion process.

[0088] In an exemplary embodiment, determining the total resources of each candidate promotion process within the corresponding evaluation period based on the initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment repair cycle, and equipment residual resources corresponding to each candidate promotion process includes:

[0089] For any candidate promotion process, based on the initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment repair cycle, and equipment residual resources corresponding to any candidate promotion process, determine the total resources of any candidate promotion process within the corresponding evaluation period according to the following relationship:

[0090]

[0091] When i = 1, F(i) = F1 + F2

[0092] When 1 < i ≤ N and mod(i - 1, k) = 0, F(i) = F2 + F3 - F4 × int(i / N)

[0093] When 1 < i ≤ N and mod(i - 1, k) ≠ 0, F(i) = F2 - F4 × int(i / N)

[0094] Where, F1 includes the initial equipment investment resources, F2 includes the annual equipment operation and maintenance resources, F3 includes the equipment repair and replacement resources, F4 includes the equipment residual resources, N includes the evaluation period, k includes the equipment repair cycle, M includes the total resources of any candidate promotion process within the corresponding evaluation period, mod includes the remainder function, and int includes the floor function.

[0095] Based on the above relationships, F1 is only included in the evaluation period when i = 1, which is the first year. F2 is included in every year of the evaluation period. For F3, it is only included in years when mod(i-1, k) = 0, meaning the remainder when (i-1) is divided by k is 0. In other words, F3 is only included in years where (i-1) is divisible by k. Therefore, the years in which F3 is included within the evaluation period actually include: i = (k+1), (2k+1), (3k+1), (4k+1), and so on, until the end of the evaluation period. That is, F3 is included every k years starting from the first year of the evaluation period. Taking k = 3 as an example, the first year of F3 inclusion is the fourth year of the evaluation period, the second year is the seventh year, the third year is the tenth year, and so on, until the end of the evaluation period.

[0096] For F4, when 1 ≤ i ≤ (N-1), (i / N) is less than 1, so the value of int(i / N) rounded down is 0, and therefore it is not included in F4. It is included in F4 only when i = N, which is the last year within the evaluation period, (i / N) = 1, and the value of int(i / N) rounded down is 1. Therefore, F4 is only included in the evaluation period for the last year.

[0097] Furthermore, based on F(i) in the above relationship, this embodiment can also calculate the resources required for any year within the evaluation period. Therefore, it can determine the sum of resources required from the first year to any year within the evaluation period. Taking an evaluation period N=5 and an equipment maintenance cycle k=2 as an example, the process of determining resources based on the above relationship is illustrated below:

[0098] When i=1, F(1)=F1+F2

[0099] When i=2, F(2)=F2, and the total resources required up to the second year are:

[0100] F(1)+F(2)=F1+2F2

[0101] When i = 3, F(3) = F2 + F3, and the total resources required up to the third year are:

[0102] F(1)+F(2)+F(3)=F1+3F2+F3

[0103] When i=4, F(4)=F2, and the total resources required up to the fourth year are:

[0104] F(1)+F(2)+F(3)+F(4)=F1+4F2+F3

[0105] When i = 5, F(4) = F2 + F3 - F4, and the total resources required up to the fifth year are:

[0106] F(1)+F(2)+F(3)+F(4)+F(5)=F1+5F2+2F3-F4

[0107] 205. Determine the target lifting technology corresponding to the target oil well based on the total resources of each candidate lifting technology within the corresponding evaluation period.

[0108] As explained in section 203, the evaluation periods for each candidate lifting technology may be the same or different. Furthermore, the methods for determining the target lifting technology for the target well based on the total resources of each candidate lifting technology within the corresponding evaluation period also differ, and these will be explained separately below.

[0109] In an exemplary embodiment, determining the target lift process corresponding to the target oil well based on the total resources of each candidate lift process within the corresponding evaluation period includes: in response to the fact that the evaluation periods corresponding to each candidate lift process are the same, determining the candidate lift process with the smallest total resources among the candidate lift processes as the target lift process.

[0110] Taking the total resources required by the first candidate lifting process within the corresponding evaluation period as A, the total resources required by the second candidate lifting process within the corresponding evaluation period as B, and the total resources required by the third candidate lifting process within the corresponding evaluation period as C, if A > B > C, it means that the third candidate lifting process requires the least total resources within the same evaluation period. Therefore, the third candidate lifting process is determined as the target lifting process for the development of the target oil well.

[0111] It is understandable that, given the different evaluation periods for various candidate lift processes, especially when the differences in evaluation periods are significant, the total resources of candidate lift processes with longer evaluation periods are more likely to be greater than those with shorter evaluation periods. Therefore, using the total resources of each candidate lift process within its corresponding evaluation period as the basis for determining the target lift process is no longer appropriate. To address this, this embodiment also provides the following method for determining the target lift process.

[0112] In an exemplary embodiment, determining the target lift process for the target well based on the total resources of each candidate lift process within its corresponding evaluation period includes: in response to the different evaluation periods corresponding to each candidate lift process, determining the ratio of the total resources of each candidate lift process within its corresponding evaluation period to the evaluation period corresponding to each candidate lift process, thereby obtaining the annual average resources of each candidate lift process. The candidate lift process with the lowest annual average resources is then determined as the target lift process.

[0113] The phrase "different evaluation periods for each candidate upgrading process" means that any two candidate upgrading processes have different evaluation periods. Alternatively, some candidate upgrading processes may have the same evaluation period, but not all candidate upgrading processes have the same evaluation period.

[0114] Taking the total resources required by the first candidate lifting process within the corresponding evaluation period M1 as N1, the total resources required by the second candidate lifting process within the corresponding evaluation period M2 as N2, and the total resources required by the third candidate lifting process within the corresponding evaluation period M3 as N3, if M1, M2, and M3 are not exactly the same, then the annual average resources of the first candidate lifting process are calculated as (N1 / M1), the annual average resources of the second candidate lifting process as (N2 / M2), and the annual average resources of the third candidate lifting process as (N3 / M3). If (N1 / M1) > (N2 / M2) > (N3 / M3), then the annual average resources corresponding to the third candidate lifting process are the smallest. Therefore, the third candidate lifting process is determined as the target lifting process for the exploitation of the target oil well.

[0115] Next, the method for determining the lifting process provided in this application will be further described through the following application examples.

[0116] Step 1: Obtain well condition information of the target oil well, and acquire multiple alternative upgrading processes based on the well condition information.

[0117] Taking the target oil well, including the extra-heavy oil well X, as an example, the well condition information of well X includes: a depth of 1800m, a maximum inclination angle of 10°, a maximum total angle variation rate of 2° / 30m, a crude oil viscosity of 12000mPa·S at 50℃, and a predicted daily production of 30m³. Accordingly, based on the well condition information of well X, several alternative lifting processes are obtained, including: a hollow rod electric heating lifting process using a rod pump, an electric submersible screw pump lifting process, and a hydraulic jet pump lifting process.

[0118] Step 2: Obtain the pump hanger depth of the target oil well, and determine the production equipment information for each candidate lifting process based on the well condition information and the pump hanger depth.

[0119] For example, if the pump hanger depth of Well X is 1500m, then the production equipment information for each candidate lifting process is determined based on the well condition information and the pump hanger depth. This production equipment information indicates the model and quantity of both surface and underground equipment. Specifically, the production equipment information for the hollow rod electric heating lifting process with a rod pump is shown in Table 1; the production equipment information for the electric submersible screw pump lifting process is shown in Table 2; and the production equipment information for the hydraulic jet pump lifting process is shown in Table 3.

[0120] Table 1

[0121] Production equipment Oil pumping unit Hollow rod Oil pump oil pipe Wellhead equipment Specifications and Models Type 12 36mm 44mm 73mm KY65 / 21 quantity 1 unit 1500m 1 unit 1500m 1 set Production equipment motor control cabinet Electric heating control cabinet cable Specifications and Models 37KW 100KW 100KW <![CDATA[35mm 2 ]]> quantity 1 unit 1 set 1 set 1550m

[0122] Table 2

[0123] Production equipment screw pump unit sensor oil pipe Wellhead equipment cable control cabinet Specifications and Models ESPCP ESPMSP 73mm KY65 / 21 <![CDATA[13mm 2 ]]> 30KW quantity 1 set 1 1500m 1 set 1550 1 set

[0124] Table 3

[0125] Production equipment hydraulic pump Ground booster pump oil pipe Specifications and Models PSCY-T 3FB127 89mm quantity 1 set 2 units 1500m Production equipment Wellhead equipment Ground three-phase separator control cabinet Specifications and Models PN25 <![CDATA[30m 3 ]]> JX-BPDK quantity 1 set 1 unit 1 set

[0126] Step 3: Determine the initial investment resources, annual operation and maintenance resources, and equipment repair and replacement resources for each candidate upgrade process based on the production equipment information.

[0127] For the initial equipment investment resources corresponding to the hollow rod electric heating lifting process for the rod pump of the oil pumping unit, please refer to Table 4. For the annual operation and maintenance resources of the corresponding equipment, please refer to Table 5. For the equipment repair and replacement resources, please refer to Table 6.

[0128] Table 4

[0129]

[0130] Table 5

[0131]

[0132] Table 6

[0133]

[0134] The initial equipment investment resources for the electric submersible screw pump lifting process are shown in Table 7, the annual equipment operation and maintenance resources are shown in Table 8, and the equipment repair and replacement resources are shown in Table 9.

[0135] Table 7

[0136]

[0137] Table 8

[0138]

[0139] Table 9

[0140]

[0141] The initial equipment investment resources for the hydraulic jet pump lifting process are shown in Table 10, the annual equipment operation and maintenance resources are shown in Table 11, and the equipment repair and replacement resources are shown in Table 12.

[0142] Table 10

[0143]

[0144] Table 11

[0145]

[0146] Table 12

[0147]

[0148] Step 4: Determine the evaluation period, equipment maintenance cycle, and remaining equipment resources for each candidate upgrade process.

[0149] For example, the service life of pumping equipment is often 8 years, so in this embodiment, the evaluation period for each candidate lifting process is determined to be 8 years. The average inspection cycle for mechanically produced wells in the oilfield block to which Well X belongs is 3 years, so the maintenance cycle for each candidate lifting process is 3 years. For any candidate lifting process, 5% of the initial investment resources of the equipment corresponding to that candidate lifting process is taken as the residual resources of the equipment corresponding to that candidate lifting process. Based on Table 4, the residual resources of the pumping unit with rod pump and hollow rod electric heating lifting process are determined to be 34,000 yuan; based on Table 7, the residual resources of the electric submersible screw pump lifting process are determined to be 31,000 yuan; and based on Table 10, the residual resources of the hydraulic jet pump lifting process are determined to be 67,150 yuan.

[0150] Step 5: Determine the total resources for each candidate upgrade process within the corresponding evaluation period based on the initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment maintenance cycle, and remaining equipment resources.

[0151] Substitute the resource data determined in steps two through four into the relationships in section 204 above to obtain the cumulative resources for each candidate upgrading process in each year of the corresponding evaluation period. The cumulative resources for the last year of each candidate upgrading process in the corresponding evaluation period are the total resources for each candidate upgrading process in the corresponding evaluation period, as shown in Table 13 below.

[0152] Table 13

[0153]

[0154] Step 6: Select the candidate lift process with the minimum total resources from all candidate lift processes as the target lift process.

[0155] Since all candidate lifting processes have the same evaluation period, the candidate lifting process with the lowest total resources can be identified as the target lifting process. According to Table 13, the total resources of each candidate lifting process, from highest to lowest, over an 8-year evaluation period are: rod pump with hollow rod electric heating lifting process (3.9594 million yuan) > hydraulic jet pump lifting process (3.54785 million yuan) > electric submersible screw pump lifting process (1.2978 million yuan). Therefore, the electric submersible screw pump lifting process is identified as the target lifting process for Well X.

[0156] In summary, the embodiments of this application, in determining the target lift process based on multiple candidate lift processes, use the total resources of each candidate lift process within its corresponding evaluation period as the basis. Therefore, the determined target lift process requires fewer resources and is suitable for implementation. Furthermore, the total resources of each candidate lift process within its corresponding evaluation period are determined based on the well condition information of the target oil well, ensuring objectivity, accuracy, and a simple and quick determination process that meets the application needs of relevant technical personnel.

[0157] This application provides an apparatus for determining a lifting process, see [link to relevant documentation]. Figure 3 The device includes:

[0158] The acquisition module 301 is used to acquire well condition information of the target oil well and acquire multiple candidate upgrading processes based on the well condition information;

[0159] The first determining module 302 is used to determine the production equipment information of each candidate upgrading process, and to determine the initial investment resources, annual operation and maintenance resources and repair and replacement resources of each candidate upgrading process based on the production equipment information. The production equipment information is used to indicate the model and quantity of ground equipment and underground equipment.

[0160] The second determining module 303 is used to determine the evaluation period, equipment maintenance cycle and equipment residual resources corresponding to each candidate upgrading process;

[0161] The third determination module 304 is used to determine the total resources of each candidate upgrading process within the corresponding evaluation period based on the initial equipment input resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment maintenance cycle and equipment residual resources.

[0162] The fourth determination module 305 is used to determine the target lifting process corresponding to the target oil well based on the total resources of each candidate lifting process within the corresponding evaluation period.

[0163] In an exemplary embodiment, the first determination module 302 is configured to obtain the pump setting depth of the target oil well; and determine the production equipment information of each candidate lifting process according to the well condition information and the pump setting depth.

[0164] In an exemplary embodiment, the third determination module 304 is configured to, for any candidate lifting process, determine the total resources of any candidate lifting process within the corresponding evaluation period according to the following relationship based on the initial resource input of the equipment corresponding to any candidate lifting process, the annual operation and maintenance resources of the equipment, the equipment overhaul and replacement resources, the evaluation period, the equipment overhaul cycle, and the remaining resources of the equipment:

[0165]

[0166] When i = 1, F(i) = F1 + F2

[0167] When 1 < i ≤ N and mod(i - 1, k) = 0, F(i) = F2 + F3 - F4 × int(i / N)

[0168] When 1 < i ≤ N and mod(i - 1, k) ≠ 0, F(i) = F2 - F4 × int(i / N)

[0169] Wherein, F1 includes the initial resource input of the equipment, F2 includes the annual operation and maintenance resources of the equipment, F3 includes the equipment overhaul and replacement resources, F4 includes the remaining resources of the equipment, N includes the evaluation period, k includes the equipment overhaul cycle, M includes the total resources of any candidate lifting process within the corresponding evaluation period, mod includes the remainder function, and int includes the floor function.

[0170] In an exemplary embodiment, the fourth determination module 305 is configured to, in response to the evaluation periods corresponding to each candidate lifting process being the same, determine the candidate lifting process with the minimum total resources among each candidate lifting process as the target lifting process.

[0171] In an exemplary embodiment, the fourth determination module 305 is configured to, in response to the evaluation periods corresponding to each candidate lifting process being different, determine the ratio of the total resources of each candidate lifting process within the corresponding evaluation period to the evaluation period corresponding to each candidate lifting process to obtain the annual average resources of each candidate lifting process; and determine the candidate lifting process with the minimum annual average resources as the target lifting process.

[0172] In an exemplary embodiment, the initial resource input of the equipment includes the resources required to obtain surface equipment and underground equipment according to the model and quantity.

[0173] In an exemplary embodiment, the annual operation and maintenance resources of the equipment include the sum of the resources required to operate and maintain the surface equipment every year.

[0174] In an exemplary embodiment, the equipment maintenance and upgrade resources include the sum of resources required for inspecting, repairing, and replacing underground equipment.

[0175] In an exemplary embodiment, the evaluation period includes the maximum service life of each ground device among its corresponding service life.

[0176] In summary, the embodiments of this application, in determining the target lift process based on multiple candidate lift processes, use the total resources of each candidate lift process within its corresponding evaluation period as the basis. Therefore, the determined target lift process requires fewer resources and is suitable for implementation. Furthermore, the total resources of each candidate lift process within its corresponding evaluation period are determined based on the well condition information of the target oil well, ensuring objectivity, accuracy, and a simple and quick determination process that meets the application needs of relevant technical personnel.

[0177] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0178] All of the above-mentioned optional technical solutions can be combined in any way to form the optional embodiments of this application, and will not be described in detail here.

[0179] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0180] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for determining a lifting process, characterized in that, The method includes: Obtain well condition information of the target oil well, and obtain multiple candidate upgrading processes based on the well condition information; The production equipment information for each candidate upgrading process is determined. Based on the production equipment information, the initial equipment investment resources, annual equipment operation and maintenance resources, and equipment repair and replacement resources for each candidate upgrading process are determined. The production equipment information is used to indicate the model and quantity of surface equipment and underground equipment. The evaluation period, equipment maintenance cycle, and equipment residual resources corresponding to each candidate upgrading process are determined. The equipment maintenance cycle is the cycle for inspecting, repairing, and replacing underground equipment. The evaluation period includes the maximum equipment service life among the equipment service life corresponding to each surface equipment. The equipment residual resources are the resources remaining in the last year of the evaluation period. For any candidate upgrade process, the total resources for the candidate upgrade process within the corresponding evaluation period are determined according to the following relationship: initial equipment investment resources, annual equipment operation and maintenance resources, equipment repair and replacement resources, evaluation period, equipment maintenance cycle, and remaining equipment resources. when hour, when and hour, when and hour, Among them, the Including the initial resource allocation of the equipment, the Including the annual operation and maintenance resources of the equipment, the Including the resources for the maintenance and replacement of the aforementioned equipment, the Including the residual resources of the device, the Including the evaluation period, the Including the equipment maintenance cycle, the This includes the total resources of any of the candidate upgrade processes within the corresponding evaluation period; mod includes the remainder function; and int includes the floor function. Since all candidate lift processes have the same evaluation period, the candidate lift process with the minimum total resources among all candidate lift processes is determined as the target lift process. In response to the different evaluation periods corresponding to each candidate lift process, the ratio of the total resources of each candidate lift process within its corresponding evaluation period to the evaluation period of each candidate lift process is determined to obtain the average annual resources of each candidate lift process; the candidate lift process with the minimum average annual resources is determined as the target lift process.

2. The method according to claim 1, characterized in that, The determination of production equipment information for each candidate upgrading process includes: Obtain the pump hanger depth of the target oil well; Based on the well condition information and the pump mounting depth, the production equipment information for each candidate lifting process is determined.

3. The method according to claim 1 or 2, characterized in that, The initial resource input for the equipment includes the resources required to acquire the ground equipment and the underground equipment according to the specified model and quantity.

4. The method according to claim 1 or 2, characterized in that, The annual operation and maintenance resources of the equipment include the sum of the resources required for the operation and maintenance of the ground equipment each year.

5. The method according to claim 1 or 2, characterized in that, The equipment maintenance and replacement resources include the sum of resources required for inspecting, repairing, and replacing the underground equipment.

6. An apparatus for determining a lifting process, characterized in that, The apparatus and method include: The acquisition module is used to acquire well condition information of the target oil well and acquire multiple candidate upgrading processes based on the well condition information. The first determining module is used to determine the production equipment information of each candidate upgrading process, and to determine the initial investment resources, annual operation and maintenance resources, and repair and replacement resources of each candidate upgrading process based on the production equipment information. The production equipment information is used to indicate the model and quantity of the surface equipment and the underground equipment. The second determining module is used to determine the evaluation period, equipment maintenance cycle and equipment residual resources corresponding to each candidate upgrading process. The equipment maintenance cycle is the cycle for inspecting, repairing and replacing underground equipment. The evaluation period includes the maximum equipment service life among the equipment service life corresponding to each surface equipment. The equipment residual resources are the resources remaining in the last year of the evaluation period of the production equipment. The third determining module is used to determine, for any candidate upgrade process, the total resources of the equipment within the corresponding evaluation period based on the initial investment resources of the equipment, the annual operation and maintenance resources of the equipment, the repair and replacement resources of the equipment, the evaluation period, the equipment maintenance cycle, and the remaining resources of the equipment, according to the following relationship: when hour, when and hour, when and hour, Among them, the Including the initial resource allocation of the equipment, the Including the annual operation and maintenance resources of the equipment, the Including the resources for the maintenance and replacement of the aforementioned equipment, the Including the residual resources of the device, the Including the evaluation period, the Including the equipment maintenance cycle, the This includes the total resources of any of the candidate upgrade processes within the corresponding evaluation period; mod includes the remainder function; and int includes the floor function. The fourth determination module is used to determine the target lift process as the candidate lift process if the evaluation period for each candidate lift process is the same; and to determine the ratio of the total resources of each candidate lift process to the evaluation period for each candidate lift process if the evaluation period for each candidate lift process is different, thereby obtaining the annual average resources of each candidate lift process; and to determine the target lift process as the candidate lift process with the minimum annual average resources.

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