Microemulsion and ultrasonic composite oil displacement method, device, equipment and storage medium

Abstract

The invention discloses a microemulsion and ultrasonic composite oil displacement method, device and equipment and a storage medium. The method is applied to a micro-emulsion and ultrasonic composite oil displacement coupling oil displacement system, and the micro-emulsion and ultrasonic composite oil displacement system comprises an injected water container, a micro-emulsion container, a high-pressure pump set, an alternating current power supply, an ultrasonic generator, a transmission cable and an electroacoustic transducer. Mixing water and microemulsion according to a preset proportion, and conveying the mixture into an injection well, wherein the microemulsion is a liquid with a preset mass concentration prepared according to the properties of an oil reservoir core, formation water and crude oil; and ultrasonic waves are applied to the injection well according to the ultrasonic oil displacement mode, so that crude oil is extracted from the extraction well. According to the technical scheme, in the microemulsion and ultrasonic composite oil displacement system, the effect of ultrasonic and microemulsion composite oil displacement is adopted for an oil well, and the crude oil recovery rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of oilfield development, and in particular to a microemulsion and ultrasonic composite oil displacement method, device, equipment and storage medium. Background Art

[0002] Oil is a vital natural resource. With the advancement of oil extraction technology, utilizing renewable electricity to extract and process crude oil has become a key trend in the oil industry. Ultrasonic technology has demonstrated promising results in enhancing oil recovery, but the fluid used in flooding is water. Therefore, further improvements in oil recovery efficiency are needed to meet these development trends. Summary of the Invention

[0003] The present invention provides a microemulsion and ultrasonic composite flooding method, device, equipment and storage medium, so as to realize the improvement of crude oil recovery rate under the composite flooding action of ultrasonic wave and microemulsion.

[0004] According to one aspect of the present invention, a microemulsion and ultrasonic composite flooding method is provided. The method is applied to a microemulsion and ultrasonic composite flooding system. The microemulsion and ultrasonic composite flooding system includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. The method comprises:

[0005] Turning on the high-pressure pump unit to mix water and microemulsion in a preset ratio and deliver it to the injection well, wherein the microemulsion is composed of the properties of the reservoir core, formation water, and crude oil;

[0006] Ultrasonic waves are applied to the injection well in an ultrasonic flooding method to produce crude oil in a production well. The ultrasonic flooding method uses ultrasonic waves generated by the AC power supply, the ultrasonic generator, the transmission cable and the electroacoustic transducer to generate oil.

[0007] According to another aspect of the present invention, a microemulsion and ultrasonic composite flooding device is provided. The device is applied to a microemulsion and ultrasonic composite flooding system. The microemulsion and ultrasonic composite flooding system includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. The device includes:

[0008] an injection module, configured to start the high-pressure pump group and deliver a mixture of water and microemulsion according to a preset ratio to an injection well, wherein the microemulsion is composed of the properties of the reservoir core, formation water, and crude oil;

[0009] The oil recovery module is used to apply ultrasonic waves in the injection well in accordance with the ultrasonic oil recovery method to recover crude oil in the recovery well. The ultrasonic oil recovery method is to recover oil by using ultrasonic waves generated by the combination of the AC power supply, the ultrasonic generator, the transmission cable and the electroacoustic transducer.

[0010] According to another aspect of the present invention, an electronic device is provided, comprising:

[0011] at least one processor; and

[0012] a memory communicatively connected to the at least one processor; wherein,

[0013] 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 so that the at least one processor can execute the microemulsion and ultrasonic composite oil displacement method described in any embodiment of the present invention.

[0014] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions for enabling a processor to implement the microemulsion and ultrasonic composite oil displacement method according to any embodiment of the present invention when executed.

[0015] The technical solution of the embodiment of the present invention is applied to a microemulsion and ultrasonic composite oil recovery system, which includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. The method includes: starting the high-pressure pump group, mixing water and microemulsion according to a preset ratio and delivering it to an injection well, where the microemulsion is a liquid with a preset mass concentration configured according to the properties of the oil reservoir core, formation water, and crude oil; applying ultrasonic waves in the injection well according to the ultrasonic oil recovery method to recover crude oil in the production well. The technical solution of this application uses the effects of microemulsion and ultrasonic composite oil recovery on oil wells in the microemulsion and ultrasonic composite oil recovery system to achieve an increase in crude oil recovery rate.

[0016] 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

[0017] 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.

[0018] Figure 1 This is a flow chart of a microemulsion and ultrasonic composite oil displacement method provided according to an embodiment of the present invention;

[0019] Figure 2 is an architectural diagram of a microemulsion and ultrasonic composite flooding system applicable to an embodiment of the present invention;

[0020] Figure 3 2 is a schematic structural diagram of a microemulsion and ultrasonic composite oil displacement device provided according to an embodiment of the present invention;

[0021] Figure 4 1 is a schematic structural diagram of an electronic device for implementing the microemulsion and ultrasonic composite oil displacement method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] 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.

[0023] It should be noted that the terms "predetermined" and the like in the specification 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 data 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.

[0024] Example 1

[0025] Figure 1 A flow chart of a microemulsion and ultrasonic composite oil recovery method provided in an embodiment of the present invention is applicable to situations where oil recovery is performed under the combined action of ultrasound and microemulsion. The method can be performed by a microemulsion and ultrasonic composite oil recovery device, which can be implemented in the form of hardware and / or software. The microemulsion and ultrasonic composite oil recovery device can be configured in any electronic device with network communication function.

[0026] The microemulsion and ultrasonic composite flooding method of the present invention is applied to a microemulsion and ultrasonic composite flooding system (such as Figure 2 ), the microemulsion and ultrasonic composite flooding system includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. Figure 2 Among them, 1 and 2 are injection water transmission pipelines; 3 is injection water pumping pipeline; 4 and 5 are cables; 6 is produced liquid transmission pipeline; 7 is crude oil export pipeline; 8 is produced water export pipeline.

[0027] like Figure 1 As shown, the method includes:

[0028] S110, turning on the high-pressure pump group to mix water and microemulsion according to a preset ratio and transport them to the injection well.

[0029] Among them, the microemulsion is composed of the properties of the reservoir core, formation water and crude oil. The specific microemulsion is a liquid with a preset mass concentration configured according to the properties of the reservoir core, formation water and crude oil.

[0030] Microemulsion is a thermodynamically stable system composed of surfactants, oil and water. Due to the narrow particle size distribution range of microemulsion, it can effectively control fluidity, expand the swept volume, and improve oil washing efficiency. Therefore, it is more suitable for low-permeability oil reservoirs with small pore throat radius. Microemulsion can form ultra-low interfacial tension and reduce seepage resistance, thereby achieving the effect of improving recovery rate; high-viscosity microemulsion has a solubilizing effect, which can reduce the viscosity of crude oil and increase fluidity, thereby removing residual oil on the pore wall, which can achieve the effect of improving oil recovery efficiency. Therefore, the present application mixes water and microemulsion according to a preset ratio to achieve a better oil recovery effect.

[0031] S120, applying ultrasonic waves in the injection well according to an ultrasonic oil recovery method to produce crude oil in the production well.

[0032] Among them, ultrasonic flooding is to use ultrasonic waves generated by combining AC power supply, ultrasonic generator, transmission cable and electroacoustic transducer to flood oil.

[0033] Specifically, using water and microemulsion for oil recovery while combining the effect of ultrasound can further improve the crude oil recovery rate.

[0034] Optionally, ultrasonic flooding includes: turning on the AC power supply, applying ultrasonic waves of a preset frequency to the oil layer through an ultrasonic generator, a transmission cable and an electroacoustic transducer to perform ultrasonic flooding, wherein the preset frequency is set between 20 and 60 kHz, and the preferred preset frequency is 32 kHz.

[0035] The technical solution of the embodiment of the present invention is applied to a microemulsion and ultrasonic composite oil recovery system, which includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. The method includes: starting the high-pressure pump group, mixing water and microemulsion according to a preset ratio and delivering it to the injection well, wherein the microemulsion is a liquid with a preset mass concentration configured according to the properties of the oil reservoir core, formation water, and crude oil; applying ultrasonic waves to the injection well in accordance with the ultrasonic oil recovery method to recover crude oil in the production well. The technical solution of this application uses the effects of microemulsion and ultrasonic composite oil recovery on oil wells in the microemulsion and ultrasonic composite oil recovery system to achieve an increase in crude oil recovery rate, and can increase the crude oil recovery rate by more than 17 percentage points.

[0036] Example 2

[0037] Figure 3 This is a schematic structural diagram of a microemulsion and ultrasonic composite oil recovery device provided in an embodiment of the present invention. This embodiment is applicable to situations where oil recovery is performed under the combined action of ultrasound and microemulsion. The microemulsion and ultrasonic composite oil recovery device can be implemented in the form of hardware and / or software. The microemulsion and ultrasonic composite oil recovery device can be configured in any electronic device with network communication capabilities.

[0038] The microemulsion and ultrasonic composite flooding device of the present application is applied to a microemulsion and ultrasonic composite flooding system (such as Figure 2 ), the microemulsion and ultrasonic composite flooding system includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer.

[0039] like Figure 3 As shown, the device includes:

[0040] Injection module 210, for starting the high-pressure pump group to mix water and microemulsion according to a preset ratio and deliver it to the injection well, wherein the microemulsion is composed of the properties of the reservoir core, formation water and crude oil;

[0041] The oil recovery module 220 is used to apply ultrasonic waves to the injection well in accordance with ultrasonic oil recovery to recover crude oil in the production well. The ultrasonic oil recovery is to recover oil by using ultrasonic waves generated by the combination of the AC power supply, the ultrasonic generator, the transmission cable and the electroacoustic transducer.

[0042] Optionally, the ultrasonic flooding includes:

[0043] The AC power supply is turned on, and ultrasonic waves of a preset frequency are applied to the oil layer through an ultrasonic generator, a transmission cable and an electroacoustic transducer to perform ultrasonic flooding. The preset frequency is set between 20 and 60 kHz.

[0044] Optionally, the preset frequency is 32KHz.

[0045] Optionally, the microemulsion is a liquid with a preset mass concentration configured according to the properties of the reservoir core, formation water and crude oil.

[0046] The microemulsion and ultrasonic composite flooding device provided in the embodiment of the present invention can execute the microemulsion and ultrasonic composite flooding method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0047] Example 3

[0048] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium, and a computer program product.

[0049] Figure 4 The structural representation of the electronic device that can be used to realize the microemulsion and ultrasonic composite flooding method of the embodiment of the present invention is shown.The electronic device is intended to represent various forms of digital computers, such as, laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers and other applicable computers.The electronic device can also represent various forms of mobile devices, such as, personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches etc.) and other similar computing devices.The components shown herein, their connection and relationship and their functions are merely examples and are not intended to limit the realization of the present invention described herein and / or required.

[0050] 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.

[0051] 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.

[0052] The processor 11 can be a variety of general and / or specialized processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The processor 11 executes the various methods and processes described above, such as the microemulsion and ultrasonic composite flooding methods.

[0053] In some embodiments, the microemulsion and ultrasonic composite flooding method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the microemulsion and ultrasonic composite flooding method described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute the microemulsion and ultrasonic composite flooding method by any other appropriate means (e.g., by means of firmware).

[0054] Various embodiments of the systems and techniques described above 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), complex 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.

[0055] 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.

[0056] 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.

[0057] 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).

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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 microemulsion and ultrasonic composite oil displacement method, characterized in that: The method is applied to a microemulsion and ultrasonic composite flooding system, which includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. The method includes: Turning on the high-pressure pump unit to mix water and microemulsion in a preset ratio and deliver it to the injection well, wherein the microemulsion is composed of the properties of the reservoir core, formation water, and crude oil; Ultrasonic waves are applied to the injection well in an ultrasonic flooding method to produce crude oil in a production well. The ultrasonic flooding method uses ultrasonic waves generated by the AC power supply, the ultrasonic generator, the transmission cable and the electroacoustic transducer to generate oil.

2. The method according to claim 1, characterized in that The ultrasonic flooding comprises: The AC power supply is turned on, and ultrasonic waves of a preset frequency are applied to the oil layer through an ultrasonic generator, a transmission cable and an electroacoustic transducer to perform ultrasonic flooding. The preset frequency is set between 20 and 60 kHz.

3. The method according to claim 2, characterized in that The preset frequency is 32KHz.

4. The method according to claim 1, wherein The microemulsion is a liquid with a preset mass concentration configured according to the properties of the reservoir core, formation water and crude oil.

5. A microemulsion and ultrasonic composite oil displacement device, characterized in that: Applied to a microemulsion and ultrasonic composite flooding system, the microemulsion and ultrasonic composite flooding system includes an injection water container, a microemulsion container, a high-pressure pump group, an AC power supply, an ultrasonic generator, a transmission cable, and an electroacoustic transducer. The device includes: an injection module, configured to start the high-pressure pump group and deliver a mixture of water and microemulsion according to a preset ratio to an injection well, wherein the microemulsion is composed of the properties of the reservoir core, formation water, and crude oil; The oil recovery module is used to apply ultrasonic waves in the injection well in accordance with the ultrasonic oil recovery method to recover crude oil in the recovery well. The ultrasonic oil recovery method is to recover oil by using ultrasonic waves generated by the combination of the AC power supply, the ultrasonic generator, the transmission cable and the electroacoustic transducer.

6. The device according to claim 5, characterized in that The ultrasonic flooding comprises: The AC power supply is turned on, and ultrasonic waves of a preset frequency are applied to the oil layer through an ultrasonic generator, a transmission cable and an electroacoustic transducer to perform ultrasonic flooding. The preset frequency is set between 20 and 60 kHz.

7. The device according to claim 6, characterized in that The preset frequency is 32KHz.

8. The device according to claim 5, characterized in that The microemulsion is a liquid with a preset mass concentration configured according to the properties of the reservoir core, formation water and crude oil.

9. 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 so that the at least one processor can execute the microemulsion and ultrasonic composite oil displacement method according to any one of claims 1 to 4.

10. 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 microemulsion and ultrasonic composite oil displacement method according to any one of claims 1 to 4 when executed.

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