Method, device, equipment and medium for determining oil and gas source

Abstract

The present invention discloses a method, device, equipment and medium for determining the source of oil and gas. The method includes: obtaining state parameters corresponding to at least one oil and gas sample; wherein the oil and gas sample contains at least three components, including oil reservoir, condensate gas and injected gas; performing phase analysis based on the state parameters, and establishing a fluid state model containing a preset number of characteristic parameters; determining parameter identifiers of each characteristic parameter under each component, and adjusting the parameters in the fluid state model based on each characteristic parameter and parameter identifier under each component to generate a target state model; processing oil and gas data corresponding to the oil and gas to be measured based on the target state model, and determining the oil and gas source of the oil and gas to be measured. This method solves the problem of low analysis accuracy and poor effect in the prior art of analyzing the source of oil and gas based on the content of fluid components, and improves the analysis accuracy of each component of oil and gas, achieving the effect of accurately determining the source of oil and gas.

Description

Technical Field

[0001] The present invention relates to the technical field of oil exploration, and in particular to a method, device, equipment and medium for determining the source of oil and gas. Background Art

[0002] The phase characteristics of fluids in oil and gas reservoir development have become a key research focus and a challenge, especially in reservoirs with condensate caps. The fluid properties in their original state are complex, and the fluid composition and properties vary dramatically with depth. During the development process, when multiple fluids mix, the produced well flow contains multiple fluids, and it is often necessary to analyze the fluid component of the oil and gas in the well flow. Currently, oil and gas source analysis is typically performed by monitoring the content of various components in the well flow and using this content to determine the source of the oil and gas.

[0003] However, as the phase state of the formation fluid changes during the development process, the produced well fluid also changes continuously. This analysis method based on fluid component content has the problems of low analysis accuracy and poor effect. Summary of the Invention

[0004] The present invention provides a method, device, equipment and medium for determining the source of oil and gas, so as to improve the analysis accuracy of the various components of oil and gas, and thus achieve the technical effect of accurately predicting the source of oil and gas.

[0005] According to one aspect of the present invention, a method for determining the source of oil and gas is provided, the method comprising:

[0006] Acquiring state parameters corresponding to at least one oil and gas sample; wherein the oil and gas sample contains at least three components, including oil reservoir, condensate gas, and injected gas;

[0007] Performing phase analysis based on the state parameters to establish a fluid state model including a preset number of characteristic parameters;

[0008] determining parameter identifiers of characteristic parameters under each of the compositions, and adjusting parameters in the fluid state model based on the characteristic parameters and the parameter identifiers under each of the compositions to generate a target state model; wherein the target state model includes the characteristic parameters corresponding to each of the compositions;

[0009] The oil and gas data corresponding to the oil and gas to be measured are processed based on the target state model to determine the oil and gas source of the oil and gas to be measured; wherein the oil and gas source is one of the at least three components.

[0010] According to another aspect of the present invention, there is provided a device for determining the source of oil and gas, the device comprising:

[0011] A state parameter acquisition module is used to acquire state parameters corresponding to at least one oil and gas sample; wherein the oil and gas sample contains at least three components, including oil reservoir, condensate gas and injected gas;

[0012] a fluid state model determination module, configured to perform phase analysis based on the state parameters and establish a fluid state model including a preset number of characteristic parameters;

[0013] a target state model determination module, configured to determine parameter identifiers of characteristic parameters under each of the compositions, and adjust parameters in the fluid state model based on the characteristic parameters and parameter identifiers under each of the compositions to generate a target state model; wherein the target state model includes the characteristic parameters corresponding to each of the compositions;

[0014] The oil and gas source determination module is used to process the oil and gas data corresponding to the oil and gas to be measured based on the target state model to determine the oil and gas source of the oil and gas to be measured; wherein the oil and gas source is one of the at least three components.

[0015] According to another aspect of the present invention, an electronic device is provided, comprising:

[0016] at least one processor; and

[0017] a memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method for determining the source of oil and gas described in any embodiment of the present invention.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the source of oil and gas according to any embodiment of the present invention when executed.

[0020] The technical solution of the embodiment of the present invention is to obtain state parameters corresponding to at least one oil and gas sample; the oil and gas sample contains at least three components, including oil reservoir, condensate gas and injected gas; perform phase analysis based on the state parameters to establish a fluid state model containing a preset number of characteristic parameters; determine the parameter identifiers of each characteristic parameter under each component, and adjust the parameters in the fluid state model based on the characteristic parameters and parameter identifiers under each component to generate a target state model; process the oil and gas data corresponding to the oil and gas to be tested based on the target state model to determine the oil and gas source of the oil and gas to be tested, thereby solving the problem of analyzing the oil and gas source based on the content of fluid components in the prior art. There are problems of low analysis accuracy and poor effect. By conducting phase analysis on the state parameters of multiple oil and gas samples, a fluid state model containing a preset number of characteristic parameters is established. Then, on the basis of the fluid state model, the parameters in the fluid state model are adjusted through the parameter identification of each characteristic parameter under each composition, and a target state model containing each characteristic parameter corresponding to each composition is generated. The target state model can predict the data of the corresponding characteristic parameters under each composition, thereby improving the analysis accuracy of each oil and gas composition, and then the oil and gas source of the oil and gas to be tested is determined by combining the data of the corresponding characteristic parameters under different compositions, thereby achieving the technical effect of accurately predicting the source of oil and gas.

[0021] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a flow chart of a method for determining the source of oil and gas provided according to the first embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of characteristic parameters characterizing various compositions provided by Example 1 of the present invention;

[0025] Figure 3 1 is a schematic structural diagram of a device for determining the source of oil and gas according to a second embodiment of the present invention;

[0026] Figure 4 It is a structural diagram of an electronic device for implementing the method for determining the source of oil and gas according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Example 1

[0030] Figure 1 This is a flow chart of a method for determining the source of oil and gas according to the first embodiment of the present invention. This embodiment is applicable to the case of determining the source of oil and gas. The method can be executed by a device for determining the source of oil and gas. The device for determining the source of oil and gas can be implemented in the form of hardware and / or software. The device for determining the source of oil and gas can be configured in a computing device. Figure 1 As shown, the method includes:

[0031] S110, obtaining state parameters corresponding to at least one oil and gas sample; the oil and gas sample contains at least three components.

[0032] Composition includes, but is not limited to, oil reservoirs, condensate (also known as condensate cap), and injected gas. State parameters include, but are not limited to, temperature, pressure, mass, volume, density, formation volume fraction, solution gas-oil ratio, viscosity, and more. Different oil and gas samples have different recovery attributes, including recovery depth and / or recovery location.

[0033] Specifically, representative oil and gas samples at different depths and locations of condensate gas and oil reservoirs can be selected, and actual measurement data of these oil and gas samples can be obtained, which includes state parameter information.

[0034] S120: Perform phase analysis based on the state parameters to establish a fluid state model including a preset number of characteristic parameters.

[0035] The fluid state model includes a preset number of characteristic parameters, which can be parameters that can characterize the complex phase characteristics of the condensate gas cap + oil reservoir, for example, molecular mass MW, critical pressure Pc, critical temperature Tc, eccentricity factor Acf, volume shift coefficient Sshift, binary interaction coefficient bic, etc.

[0036] In this embodiment, the state parameters of oil and gas samples can be substituted into designated reservoir data simulation software, and equation of state parameters can be fitted simultaneously for multiple samples to establish a set of equations of state representing the four-dimensional fluid phase characteristics of the reservoir, namely, a fluid state model. When applying the fluid state model, the oil and gas data of the oil and gas to be measured can be input into the fluid state model, and the model can output the characteristic value of each characteristic parameter, reflecting the characteristic information of the oil and gas to be measured under each parameter.

[0037] S130 , determining parameter identifiers of characteristic parameters under each composition, and adjusting parameters in the fluid state model based on the characteristic parameters and parameter identifiers under each composition to generate a target state model.

[0038] The target state model contains characteristic parameters corresponding to each component. For example, the characteristic parameter information corresponding to the three components of oil reservoir, condensate gas and injected gas in a reservoir with condensate gas cap can be found in Figure 2 Each composition includes characteristic parameters such as CO2, H2S, C1N2, C2C3, C4C5, C6-C13, C14-C29, and C30P.

[0039] To improve the accuracy of oil and gas analysis, the model can predict the information of each characteristic parameter corresponding to each composition. For each composition, a unique parameter identifier can be set for the characteristic parameters corresponding to different compositions, so that the parameters in the fluid state model can be adjusted through the parameter identifier to generate the target state equation. Optionally, the parameter identifiers of each characteristic parameter under each composition are determined, including: determining the parameter identifiers of each characteristic parameter under each composition based on the ranking between the compositions and the initial identifiers of each characteristic parameter; or determining the parameter identifiers of each characteristic parameter under each composition based on the composition identifiers of the compositions and the initial identifiers of each characteristic parameter. This parameter identifier is relative to the composition and characteristic parameter, and is different from the parameter identifiers of the parameters in the fluid state model. The initial identifier corresponds to the identifier of the parameter in the fluid state model.

[0040] Specifically, the parameter names of each characteristic parameter in the fluid state model can be used as initial identifiers. Based on the ranking of the three components—condensate gas, reservoir gas, and injected gas—the characteristic parameters for each component can be renamed to determine the parameter identifiers for each characteristic parameter. For example, if characteristic parameter 1 is initially identified as CO2 in the fluid state model and condensate gas is ranked as 1, the parameter identifier for characteristic parameter 1 for condensate gas can be set to 1_CO2; if reservoir gas is ranked as 2, the parameter identifier for characteristic parameter 1 for reservoir gas can be set to 2_CO2. Alternatively, component identifiers can be assigned to each component based on the initial identifiers of each characteristic parameter to generate parameter identifiers for each component. For example, if condensate gas is identified as C, the parameter identifier for characteristic parameter 1 for condensate gas can be set to C_CO2; if reservoir gas is identified as O, the parameter identifier for characteristic parameter 1 for reservoir gas can be set to O_CO2. This ensures that the parameter identifiers for the same characteristic parameter corresponding to different components are different, and that the parameter identifiers for different characteristic parameters corresponding to the same component are also different, thereby distinguishing the characteristic parameters of different components.

[0041] Furthermore, the parameter names in the fluid state model can be modified using the parameter identifiers of the characteristic parameters corresponding to each component. This generates a state analysis model corresponding to each characteristic parameter for each component. Each state analysis model can correspond to a characteristic parameter for each component. For example, if the original components contain three components and the characteristic parameters contain eight, a total of 24 state analysis models can be established. These state analysis models can then be fused to generate a target state model.

[0042] In this embodiment, based on the characteristic parameters and parameter identifiers under each composition, the parameters in the fluid state model are adjusted to generate a target state model, including: determining the data to be used corresponding to each characteristic parameter under the same composition according to the characteristic conservation rule; based on the data to be used and the parameter identifier, the parameters in the fluid state model are adjusted to generate a target state model.

[0043] The characteristic conservation rule may be: the sum of the characteristic values ​​of all characteristic parameters under the same composition is guaranteed to be 1. This characteristic value is the data to be used.

[0044] Specifically, all characteristic parameters under the same composition can be analyzed using the characteristic conservation rule. Combined with reservoir analysis requirements, the corresponding data to be used for each characteristic parameter under this composition can be calculated. When renaming parameters in the fluid state model using the parameter identifiers of the characteristic parameters, the parameter information or its weight can be modified based on the data to be used to generate the target state model.

[0045] For example, a table of parameter identifiers representing characteristic parameters under different compositions and data to be used for the characteristic parameters can be found in Table 1. For example, the data to be used for CCO2 (the parameter identifier for CO2 in condensate gas) is 0.039. The data to be used for OCO2 (the parameter identifier for CO2 in oil reservoir) is 0.029.

[0046] Table 1

[0047] Parameter identification\composition condensate gas oil reservoir Injection gas CCO2 0.039 0 0 OCO2 0 0.029 0 ICO2 0 0 0.03 CH2S 0 0 0 OH2S 0 0 0 IH2S 0 0 0 CC1N2 0.791 0 0 OC1N2 0 0.474 0 IC1N2 0 0 0.78 CC2C3 0.093 0 0 OC2C3 0 0.119 0 IC2C3 0 0 0.1 CC4C5 0.037 0 0

[0048] Continued from Table 1

[0049] OC4C5 0 0.075 0 IC4C5 0 0 0.05 CC6-C13 0.038 0 0 OC6-C13 0 0.186 0 IC6-C13 0 0 0.04 CC14-C2 0.002 0 0 OC14-C2 0 0.096 0 IC14-C2 0 0 0 CC30P 0 0 0 OC30P 0 0.021 0 IC30P 0 0 0 total 1.000 1.000 1.000

[0050] S140 : Processing the oil and gas data corresponding to the oil and gas to be measured based on the target state model to determine the oil and gas source of the oil and gas to be measured.

[0051] The oil and gas source is one of at least three components.

[0052] Specifically, the oil and gas data corresponding to the oil and gas to be measured can be input into the target state model, and model prediction can be performed based on the target state model to obtain the oil and gas source of the oil and gas to be measured produced at the wellhead.

[0053] Optionally, the oil and gas data corresponding to the oil and gas to be tested are processed based on the target state model to determine the oil and gas source of the oil and gas to be tested, including: obtaining the oil and gas data corresponding to the oil and gas to be tested; processing the oil and gas data based on the target state model to obtain target data corresponding to each characteristic parameter under each composition; and determining the oil and gas source of the oil and gas to be tested based on the target data.

[0054] In practical applications, oil and gas data can be collected for the oil and gas to be tested, including but not limited to the oil and gas state parameters, geological parameters of the oil and gas, and production parameters. This data is processed using a target state model, which predicts target data corresponding to each characteristic parameter for each composition. For example, if the characteristic parameter is gas, the target data can include the concentration of that characteristic parameter in the composition. Furthermore, the target data for each characteristic parameter under different compositions can be used to determine the source of the oil and gas to be tested.

[0055] Optionally, determining the oil and gas source of the oil and gas to be tested based on the target data includes: determining the proportion of each component from which the oil and gas to be tested originates based on the target data; and determining the oil and gas source of the oil and gas to be tested based on each proportion.

[0056] Specifically, the target data of each characteristic parameter under different compositions can be used to calculate the proportion of the oil and gas to be tested originating from the condensate gas cap, dissolved gas, and injected gas, as well as the proportion of gas cap condensate oil in the crude oil produced at the wellhead. The composition corresponding to the maximum proportion can be used as the oil and gas source of the oil and gas to be tested, and the oil and gas flow channel can be accurately determined based on the oil and gas source.

[0057] The technical solution of this embodiment is to obtain state parameters corresponding to at least one oil and gas sample; the oil and gas sample contains at least three components, including oil reservoir, condensate gas and injected gas; perform phase analysis based on the state parameters, and establish a fluid state model containing a preset number of characteristic parameters; determine the parameter identifiers of each characteristic parameter under each component, and adjust the parameters in the fluid state model based on each characteristic parameter and parameter identifier under each component to generate a target state model; process the oil and gas data corresponding to the oil and gas to be tested based on the target state model to determine the oil and gas source of the oil and gas to be tested, thereby solving the problem of analyzing the oil and gas source based on the content of fluid components in the prior art. In order to solve the problems of low analysis accuracy and poor effect, we have implemented a phase analysis of the state parameters of multiple oil and gas samples to establish a fluid state model containing a preset number of characteristic parameters. Then, on the basis of the fluid state model, the parameters in the fluid state model are adjusted through the parameter identification of each characteristic parameter under each composition, and a target state model containing each characteristic parameter corresponding to each composition is generated. The target state model can simultaneously simulate the data of the corresponding characteristic parameters under each composition, thereby improving the analysis accuracy of each oil and gas composition, and then determine the oil and gas source of the oil and gas to be tested by combining the data of the corresponding characteristic parameters under different compositions, thereby achieving the technical effect of accurately predicting the source of oil and gas.

[0058] Example 2

[0059] Figure 3 FIG. 1 is a schematic diagram of a device for determining the source of oil and gas according to the second embodiment of the present invention. Figure 3 As shown, the device includes: a state parameter acquisition module 210, a fluid state model determination module 220, a target state model determination module 230 and an oil and gas source determination module 240.

[0060] Among them, the state parameter acquisition module 210 is used to obtain state parameters corresponding to at least one oil and gas sample; wherein the oil and gas sample contains at least three components, and the components include oil reservoir, condensate gas and injected gas; the fluid state model determination module 220 is used to perform phase analysis based on the state parameters and establish a fluid state model containing a preset number of characteristic parameters; the target state model determination module 230 is used to determine the parameter identifier of each characteristic parameter under each of the components, and based on the characteristic parameters under each of the components and the parameter identifier, adjust the parameters in the fluid state model to generate a target state model; wherein the target state model contains each characteristic parameter corresponding to each of the components; the oil and gas source determination module 240 is used to process the oil and gas data corresponding to the oil and gas to be tested based on the target state model to determine the oil and gas source of the oil and gas to be tested; wherein the oil and gas source is one of the at least three components.

[0061] The technical solution of this embodiment is to obtain state parameters corresponding to at least one oil and gas sample; the oil and gas sample contains at least three components, including oil reservoir, condensate gas and injected gas; perform phase analysis based on the state parameters, and establish a fluid state model containing a preset number of characteristic parameters; determine the parameter identifiers of each characteristic parameter under each component, and adjust the parameters in the fluid state model based on each characteristic parameter and parameter identifier under each component to generate a target state model; process the oil and gas data corresponding to the oil and gas to be tested based on the target state model to determine the oil and gas source of the oil and gas to be tested, thereby solving the problem of analyzing the oil and gas source based on the content of fluid components in the prior art. In order to solve the problems of low analysis accuracy and poor effect, we have implemented a phase analysis of the state parameters of multiple oil and gas samples to establish a fluid state model containing a preset number of characteristic parameters. Then, on the basis of the fluid state model, the parameters in the fluid state model are adjusted through the parameter identification of each characteristic parameter under each composition, and a target state model containing each characteristic parameter corresponding to each composition is generated. The target state model can simultaneously simulate the data of the corresponding characteristic parameters under each composition, thereby improving the analysis accuracy of each oil and gas composition, and then determine the oil and gas source of the oil and gas to be tested by combining the data of the corresponding characteristic parameters under different compositions, thereby achieving the technical effect of accurately predicting the source of oil and gas.

[0062] Based on the above device, optionally, the target state model determination module 230 includes a parameter identification determination unit.

[0063] a parameter identification determining unit, configured to determine the parameter identification of each characteristic parameter under each of the components based on the order of the components and the initial identification of each characteristic parameter; or

[0064] Based on the composition identification of the composition and the initial identification of each characteristic parameter, the parameter identification of each characteristic parameter under each composition is determined; wherein the initial identification corresponds to the identification of the parameter in the fluid state model.

[0065] On the basis of the above device, optionally, the target state model determination module 230 includes: a to-be-used data determination unit and a target state model determination unit.

[0066] a data-to-be-used determining unit, configured to determine the data-to-be-used corresponding to each characteristic parameter under the same composition according to a characteristic conservation rule;

[0067] The target state model determining unit is configured to adjust the parameters in the fluid state model based on the data to be used and the parameter identifier to generate a target state model.

[0068] On the basis of the above device, optionally, the oil and gas source determination module 240 includes an oil and gas data acquisition unit, a target data determination unit and an oil and gas source determination unit.

[0069] An oil and gas data acquisition unit, used to acquire oil and gas data corresponding to the oil and gas to be measured;

[0070] a target data determination unit, configured to process the oil and gas data based on the target state model to obtain target data corresponding to each characteristic parameter under each composition; wherein the target data includes the content of the characteristic parameter under the composition;

[0071] The oil and gas source determination unit is used to determine the oil and gas source of the oil and gas to be measured based on the target data.

[0072] Based on the above device, optionally, the oil and gas source determination unit includes a ratio determination subunit and an oil and gas source determination subunit.

[0073] a ratio determination subunit, configured to determine, based on the target data, the ratio of the oil and gas to be tested originating from each of the components;

[0074] The oil and gas source determination subunit is used to determine the oil and gas source of the oil and gas to be tested based on the respective ratios.

[0075] Based on the above device, optionally, different oil and gas samples have different production attributes; the production attributes include production depth and / or production location.

[0076] The device for determining the source of oil and gas provided in the embodiment of the present invention can execute the method for determining the source of oil and gas provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0077] Example 3

[0078] Figure 4 Schematic diagram of an electronic device for implementing the method for determining the source of oil and gas according to an embodiment of the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0079] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0080] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0081] Processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. Processor 11 executes the various methods and processes described above, such as the method for determining the source of oil and gas.

[0082] In some embodiments, the method for determining the source of oil and gas can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for determining the source of oil and gas described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to execute the method for determining the source of oil and gas through any other suitable means (e.g., via firmware).

[0083] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0084] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0085] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0086] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0087] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0088] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0089] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0090] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for determining the source of oil and gas, characterized in that: include: Acquiring state parameters corresponding to at least one oil and gas sample; wherein the oil and gas sample contains at least three components, including reservoir gas, condensate gas, and injected gas; the state parameters include temperature, pressure, mass, volume, density, formation volume coefficient, solution gas-oil ratio, and viscosity; Performing phase analysis based on the state parameters to establish a fluid state model including a preset number of parameters; the parameters of the fluid state model include molecular mass, critical pressure, critical temperature, eccentricity factor, volume offset coefficient, and binary interaction coefficient; Determining parameter identifiers of characteristic parameters under each of the compositions, and adjusting parameters in the fluid state model based on the characteristic parameters and the parameter identifiers under each of the compositions to generate a target state model; wherein the target state model includes the characteristic parameters corresponding to each of the compositions; the characteristic parameters include CO2, H2S, C1N2, C2C3, C4C5, C6-C13, C14-C29, and C30P; The adjusting of the parameters in the fluid state model based on the characteristic parameters and the parameter identifiers under each of the compositions to generate a target state model includes: Determine the data to be used corresponding to each characteristic parameter under the same composition according to the characteristic conservation rule; the characteristic conservation rule is that the sum of the characteristic values ​​of all characteristic parameters under the same composition is guaranteed to be 1; the characteristic value is the data to be used; Adjusting parameters in the fluid state model based on the data to be used and the parameter identifier to generate a target state model includes: By changing the parameter names in the fluid state model according to the parameter identifiers of the characteristic parameters corresponding to each composition, a state analysis model corresponding to each characteristic parameter of each composition is generated respectively; the state analysis models are merged to generate a target state model; each state analysis model corresponds to a characteristic parameter of a composition; Processing oil and gas data corresponding to the oil and gas to be measured based on the target state model to determine the oil and gas source of the oil and gas to be measured includes: Acquiring oil and gas data corresponding to the oil and gas to be measured; wherein the source of the oil and gas is one of the at least three components; Processing the oil and gas data based on the target state model to obtain target data corresponding to each characteristic parameter under each composition; wherein the target data includes the content of the characteristic parameter under the composition; Determining the oil and gas source of the oil and gas to be measured based on the target data; The step of determining the oil and gas source of the oil and gas to be measured based on the target data includes: Based on the target data, determining the proportion of the oil and gas to be tested originating from each of the components; Based on the ratios, the oil and gas sources of the oil and gas to be tested are determined.

2. The method according to claim 1, characterized in that The determining of parameter identifiers of characteristic parameters under each of the components includes: Determine the parameter identification of each characteristic parameter under each component based on the order of the components and the initial identification of each characteristic parameter; or Based on the composition identification of the composition and the initial identification of each characteristic parameter, the parameter identification of each characteristic parameter under each composition is determined; wherein the initial identification corresponds to the identification of the parameter in the fluid state model.

3. The method according to claim 1, characterized in that Different oil and gas samples have different production attributes; the production attributes include production depth and / or production location.

4. A device for determining the source of oil and gas, characterized in that: include: a state parameter acquisition module, configured to acquire state parameters corresponding to at least one oil and gas sample; wherein the oil and gas sample contains at least three components, including reservoir gas, condensate gas, and injected gas; and the state parameters include temperature, pressure, mass, volume, density, formation volume coefficient, solution gas-oil ratio, and viscosity; a fluid state model determination module, configured to perform phase analysis based on the state parameters and establish a fluid state model comprising a preset number of parameters; the parameters of the fluid state model comprising molecular mass, critical pressure, critical temperature, eccentricity factor, volume offset coefficient, and binary interaction coefficient; a target state model determination module, configured to determine parameter identifiers of characteristic parameters under each of the compositions, and adjust parameters in the fluid state model based on the characteristic parameters and parameter identifiers under each of the compositions to generate a target state model; wherein the target state model includes the characteristic parameters corresponding to each of the compositions; the characteristic parameters include CO2, H2S, C1N2, C2C3, C4C5, C6-C13, C14-C29, and C30P; The target state model determination module includes: a data-to-be-used determining unit, configured to determine the data to be used corresponding to each characteristic parameter under the same composition according to a characteristic conservation rule; the characteristic conservation rule is that the sum of the characteristic values ​​of all characteristic parameters under the same composition is guaranteed to be 1; the characteristic value is the data to be used; a target state model determining unit, configured to adjust parameters in the fluid state model based on the data to be used and the parameter identifier to generate a target state model; a target state model determination unit, specifically configured to modify the names of the parameters in the fluid state model by using the parameter identifiers of the characteristic parameters corresponding to each composition, and to generate a state analysis model corresponding to each characteristic parameter under each composition; and to fuse the state analysis models to generate a target state model; each state analysis model corresponds to a characteristic parameter under one composition; an oil and gas source determination module, configured to process oil and gas data corresponding to the oil and gas to be measured based on the target state model to determine the oil and gas source of the oil and gas to be measured; wherein the oil and gas source is one of the at least three components; Oil and gas source determination module, including: An oil and gas data acquisition unit, used to acquire oil and gas data corresponding to the oil and gas to be measured; a target data determination unit, configured to process the oil and gas data based on the target state model to obtain target data corresponding to each characteristic parameter under each composition; wherein the target data includes the content of the characteristic parameter under the composition; an oil and gas source determination unit, configured to determine the oil and gas source of the oil and gas to be measured based on the target data; The oil and gas source determination unit includes: a ratio determination subunit, configured to determine, based on the target data, the ratio of the oil and gas to be tested originating from each of the components; The oil and gas source determination subunit is used to determine the oil and gas source of the oil and gas to be tested based on the respective ratios.

5. The device according to claim 4, characterized in that The target state model determination module includes: A parameter identification determination unit is used to determine the parameter identification of each characteristic parameter under each of the components based on the order between the components and the initial identification of each characteristic parameter; or to determine the parameter identification of each characteristic parameter under each of the components based on the composition identification of the components and the initial identification of each characteristic parameter; wherein the initial identification corresponds to the identification of the parameter in the fluid state model.

6. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method for determining the source of oil and gas according to any one of claims 1 to 3.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the source of oil and gas according to any one of claims 1 to 3 when executed.

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