Shale oil horizontal well productivity recovery method and related equipment

Abstract

The invention provides a shale oil horizontal well productivity recovery method and related equipment, and relates to the technical field of oil production processes, and the method comprises the following steps: obtaining blocking degree integrated evaluation parameters; sequencing the low-yield wells according to the blockage degree integrated evaluation parameters to obtain a blockage removal sequence; according to different areas and / or different scale types of the low-yield well, corresponding plug removal acid liquid for plug removal is selected; based on the simulation calculation result of the shale oil horizontal well numerical model, horizontal well acidification scheme parameters of the unblocking acid liquid are formulated; and unblocking the low-yield well according to the unblocking sequence based on the horizontal well acidification scheme parameters. Therefore, all implementation of the low-yield wells can be converted into priority ordering implementation of the potential wells, different areas and different scale types of the horizontal well are converted from single acid liquor to differentiation, rapid formulation of acidification scheme parameters of the low-yield wells is achieved, then rapid recovery of the productivity of the low-yield wells and measure benefits are guaranteed, and rapid and accurate plug removal is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil production technology, and more specifically, to a method for restoring the productivity of shale oil horizontal wells, a device for restoring the productivity of shale oil horizontal wells, an electronic device, and a storage medium. Background Art

[0002] Since 2021, some wells have exposed serious problems such as sand spitting and scaling during the production process of shale oil horizontal wells, accounting for 10.4%, which brings great challenges to the scientific and objective evaluation of single-well productivity, decline law, EUR, etc. and the stable operation of production. Conventional plugging removal technologies are not mature, and there is an urgent need to innovate targeted process technologies. Currently, in the conventional productivity restoration solutions, the following problems exist:

[0003] (1) Selecting wells only based on the characteristics of low liquid production and low production in horizontal wells, without considering reservoir quality, stimulation adequacy, production flowing pressure changes, and formation energy;

[0004] (2) Only proposing a single acid liquid system for plugged horizontal wells, without considering different regions, different scale types, corrosion damage to casing, etc.;

[0005] (3) In the early stage, shale oil horizontal wells mainly rely on sand washing or general acidification, supplemented by rough sectional acidification, and no scientific parameter method for the plan has been formed.

[0006] Therefore, there is an urgent need for a new technical solution to solve the above technical problems. Summary of the Invention

[0007] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in the Detailed Implementation section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0008] The purpose of the present invention is to provide a method for restoring the productivity of shale oil horizontal wells and related equipment to solve the above technical problems.

[0009] To achieve the above purpose, the present invention adopts the following technical solutions:

[0010] In the first aspect, the present invention provides a method for restoring the productivity of shale oil horizontal wells, including:

[0011] Obtaining an integrated evaluation parameter of the degree of blockage;

[0012] Sorting low-production wells according to the integrated evaluation parameter of the degree of blockage to obtain the order of plugging removal;

[0013] Selecting a corresponding plugging removal acid liquid for plugging removal according to different regions and / or different scale types of low-production wells;

[0014] Based on the simulation results of the numerical model of the shale oil horizontal well, formulate the parameters of the horizontal well acidizing plan for the plugging removal acid fluid;

[0015] Based on the parameters of the horizontal well acidizing plan, plugging removal is carried out on the low-yield wells in the plugging removal order.

[0016] Optionally, the method further includes:

[0017] According to the sand body distribution, reservoir classification and staged fracturing pressure characteristics of the low-yield wells, determine the corresponding acidizing throttlers and acid-resistant temporary plugging agents;

[0018] Use the multi-stage sliding sleeve non-moving string and in-section temporary plugging acidizing technology to carry out plugging removal on the low-yield wells.

[0019] Optionally, the integrated evaluation parameters of the plugging degree include: geological factors and completion factors, monthly pressure drop and fluid replacement rate.

[0020] Optionally, according to different regions and / or different scale types of the low-yield wells, select the corresponding plugging removal acid fluid for plugging removal, including:

[0021] According to the produced water ion analysis in different regions and / or the XRD analysis of the cemented sand blocks in the low-yield wells, integrate the functions of plugging removal, corrosion inhibition and inhibition of secondary precipitation of scaling ions to determine the plugging removal acid fluid system.

[0022] Optionally, the method further includes:

[0023] Establish a numerical model of the shale oil horizontal well to simulate the influence degree of different numbers of plugged sections on the bottom hole flowing pressure.

[0024] Optionally, based on the simulation results of the numerical model of the shale oil horizontal well, formulate the parameters of the horizontal well acidizing plan for the plugging removal acid fluid, including:

[0025] Simulate the pressure drop funnel curve of different scaling depths of the fractures to determine the influence of plugging on the pressure drop gradient at the distance from the fracture mouth;

[0026] Combined with the reaction rates of different acid fluid systems, determine the parameters of the horizontal well acidizing plan for the plugging removal acid fluid.

[0027] In the second aspect, a shale oil horizontal well productivity recovery device is also proposed, including:

[0028] An acquisition module for acquiring the integrated evaluation parameters of the plugging degree;

[0029] A sorting module for sorting the low-yield wells according to the integrated evaluation parameters of the plugging degree to obtain the plugging removal order;

[0030] An acid solution determination module, configured to select corresponding plugging removal acid solutions for plugging removal according to different regions and / or different scale types of low-yield wells;

[0031] An acid solution parameter determination module, configured to formulate horizontal well acidizing plan parameters for the plugging removal acid solutions based on the simulation calculation results of a shale oil horizontal well numerical model;

[0032] An execution module, configured to perform plugging removal on the low-yield wells according to the plugging removal sequence based on the horizontal well acidizing plan parameters.

[0033] Optionally, the device further includes: a plugging removal module, configured to determine corresponding acidizing chokes and acid-resistant temporary plugging agents according to the sand body distribution, reservoir classification, and staged fracturing pressure characteristics of the low-yield wells; and perform plugging removal on the low-yield wells by using a multi-stage sliding sleeve non-moving string and staged temporary plugging acidizing technology.

[0034] In a third aspect, an electronic device is further provided, including a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are run by the processor, they are used to execute the shale oil horizontal well productivity recovery method as described above.

[0035] In a fourth aspect, a storage medium is further provided, on which program instructions are stored, and when the program instructions are run, they are used to execute the shale oil horizontal well productivity recovery method as described above.

[0036] According to the above technical solution, an integrated evaluation parameter of the plugging degree is obtained, and the low-yield wells are sorted according to the integrated evaluation parameter of the plugging degree to obtain the plugging removal sequence; corresponding plugging removal acid solutions for plugging removal are selected according to different regions and / or different scale types of the low-yield wells; horizontal well acidizing plan parameters for the plugging removal acid solutions are formulated based on the simulation calculation results of the shale oil horizontal well numerical model; and plugging removal is performed on the low-yield wells according to the plugging removal sequence based on the horizontal well acidizing plan parameters. Thereby, it can be ensured that all low-yield wells are transformed to be preferentially sorted and implemented as potential wells, realizing the transformation from a single acid solution to a differentiated one for different regions and different scale types of horizontal wells, realizing the rapid formulation of acidizing plan parameters for low-yield wells, and further ensuring the rapid recovery of the productivity of low-yield wells and the measure benefits, and achieving rapid and accurate plugging removal.

[0037] For the shale oil horizontal well productivity recovery method of the present invention, other advantages, objectives, and features of the present invention will be partially reflected by the following description, and will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and the descriptions thereof are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0039] Figure 1 Shows a schematic flowchart of a shale oil horizontal well productivity recovery method according to an embodiment of the present invention;

[0040] Figure 2-1 Shows a schematic diagram of an integrated evaluation parameter of plugging degree according to an embodiment of the present invention;

[0041] Figure 2-2 Shows a schematic diagram of an integrated evaluation parameter of plugging degree according to an embodiment of the present invention;

[0042] Figure 2-3 Shows a schematic diagram of an integrated evaluation parameter of plugging degree according to an embodiment of the present invention;

[0043] Figure 3 Shows a schematic diagram of the bottom-hole flowing pressure changing with the production time according to an embodiment of the present invention;

[0044] Figure 4 Shows a schematic diagram of an acidizing parameter design chart according to an embodiment of the present invention;

[0045] Figure 5 Shows a schematic flowchart of a shale oil horizontal well productivity recovery device according to an embodiment of the present invention; and

[0046] Figure 6 Shows a schematic block diagram of an electronic device according to an embodiment of the present invention. Detailed implementation manners

[0047] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0048] The following detailed descriptions are all exemplary descriptions, aiming to provide further detailed descriptions of the present invention. Unless otherwise specified, all technical terms adopted by the present invention have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs. The terms used in the present invention are only for describing specific implementation manners, and are not intended to limit the exemplary implementation manners according to the present invention.

[0049] According to the first aspect of the present invention, the present invention proposes a shale oil horizontal well productivity recovery method. Figure 1 Shows a schematic flowchart of a shale oil horizontal well productivity recovery method 100 according to an embodiment of the present invention. As Figure 1 shown, the method 100 may include the following steps.

[0050] Step S110, obtaining an integrated evaluation parameter of plugging degree.

[0051] Optionally, the integrated evaluation parameter of the plugging degree includes: geological factors, completion factors, monthly pressure drop, and fluid replacement rate. Figures 2-1 to 2-3 Schematic diagrams of multiple integrated evaluation parameters of the plugging degree according to an embodiment of the present invention are respectively shown. The integrated evaluation parameters of the plugging degree can be obtained according to any existing or future technologies, which are not limited herein.

[0052] Step S120: Sort the low-production wells according to the integrated evaluation parameter of the plugging degree to obtain the unplugging sequence.

[0053] Exemplarily, in combination with Figures 2-1 to 2-3 as shown, wells can be selected by the integrated plugging potential evaluation method of geology-engineering-dynamics-flowback. Specifically, the integrated evaluation parameters of the plugging degree that comprehensively characterize reservoir quality, stimulation adequacy, production flowing pressure change, and formation energy can be used. Priority can be given to implementing low-production wells such as those with geological factors and completion factors > 0.2, monthly pressure drop > 0.5 MPa, and fluid replacement rate < 50% to ensure the rapid recovery of the productivity of low-production wells and the effectiveness of measures. Among them, the integrated evaluation parameter of the plugging degree can be specifically set according to experience or actual requirements. The above parameters are only exemplary and do not mean specific limitations on the values. Thus, the unplugging sequence of low-production wells can be obtained, enabling all low-production wells to be implemented and transformed to the priority ranking implementation of potential wells.

[0054] Step S130: Select the corresponding unplugging acid fluid for unplugging according to different regions and / or different scale types of the low-production wells.

[0055] Exemplarily, high-efficiency corrosion-inhibiting unplugging acid fluids can be preferably selected according to different regions and different scale types of low-production wells. In a specific embodiment, according to the produced water ion analysis in different regions and / or the XRD analysis of the cemented sand blocks in low-production wells, the functions of unplugging, corrosion inhibition, and suppression of secondary precipitation of scaling ions can be integrated to determine the unplugging acid fluid system. Specifically, three systems such as neutral chelating acid, organic hydrochloric acid, and retarded acid can be determined by region and scale type, and the most suitable one can be selected from them to ensure that the scale sample dissolution rate > 85% and the scale inhibition rate of the flowback fluid ≥ 80%, realizing effective unplugging of low-production wells.

[0056] Step S140: Based on the simulation calculation results of the numerical model of the shale oil horizontal well, formulate the horizontal well acidification scheme parameters of the unplugging acid fluid.

[0057] Exemplarily, a numerical model of the shale oil horizontal well can be established to simulate the influence degree of different plugging segments on the bottom-hole flowing pressure. Figure 3 Schematic diagrams of the bottom-hole flowing pressure changing with the production time according to an embodiment of the present invention are shown. As Figure 3As shown, as the number of blocked segments gradually increases, the bottom-hole flowing pressure decreases faster with the production time. Thus, the simulation results can show that blocking the fractures can increase the multi-stage superposition effect, and the supply capacity of the fracture system drops sharply, showing the characteristics of a rapid decrease in bottom-hole flowing pressure and a rapid drop in the flowing fluid level. Optionally, the pressure drop funnel curves of different scaling depths of the fractures can also be simulated and calculated to determine the influence of blocking on the pressure drop gradient at the distance parameter from the fracture orifice. In a specific embodiment, it can be determined that the blocking has a greater influence on the pressure drop gradient within a distance of 5 - 10 meters from the fracture orifice. Based on this, combined with the reaction rates of different acid systems, the matching chart of the single-stage acid consumption, acid concentration, and the radius of acidizing for removing blockage can be applied to determine the horizontal well acidizing plan parameters for the acidizing fluid for removing blockage. Figure 4 Fig. shows a schematic diagram of the acidizing parameter design chart according to an embodiment of the present invention. Based on this, the horizontal well acidizing plan parameters for the acidizing fluid for removing blockage can be formulated according to the actual situation or requirements.

[0058] Step S150: Based on the horizontal well acidizing plan parameters, unblock the low-production well in the unblocking sequence.

[0059] Exemplarily, after formulating the horizontal well acidizing plan parameters for the acidizing fluid for removing blockage, combined with the unblocking sequence of the low-production well determined above, the formulated horizontal well acidizing plan parameters can be used to unblock the low-production well in sequence.

[0060] According to the above technical solution, based on the integrated evaluation parameters of the blockage degree, the low-production wells are sorted to obtain the unblocking sequence; according to the different regions and / or different scale types of the low-production wells, the corresponding acidizing fluid for removing blockage is selected to unblock the low-production wells; based on the simulation calculation results of the shale oil horizontal well numerical model, the horizontal well acidizing plan parameters for the acidizing fluid for removing blockage are formulated; based on the horizontal well acidizing plan parameters, the low-production wells are unblocked in the unblocking sequence. Thus, all low-production wells can be transformed to the potential wells for priority implementation, realizing the transformation from a single acid to a differentiated acid for different regions and different scale types of horizontal wells, realizing the rapid formulation of the acidizing plan parameters for low-production wells, and further ensuring the rapid recovery of the productivity of low-production wells and the measure benefits, achieving rapid and accurate unblocking.

[0061] Optionally, the method may further include: Step S160: Determine the corresponding acidizing throttle and acid-resistant temporary plugging agent according to the sand body distribution, reservoir classification, and staged fracturing pressure characteristics of the low-production well.

[0062] Exemplarily, considering the pertinence of unblocking multi-stage fractures in long horizontal wells and the construction period, the sand body distribution, reservoir classification, and staged fracturing pressure characteristics of the low-production well can be comprehensively considered to determine the supporting self-regulating acidizing throttle and acid-resistant temporary plugging agent.

[0063] Step S170: Use the multi-stage sliding sleeve non-moving string and the staged temporary plugging acidizing process to unblock the low-production well.

[0064] Furthermore, a precise plugging removal for low - production wells can be achieved by combining mechanical and temporary plugging and sectional acidizing processes. Specifically, a large - section combined multi - stage sliding sleeve non - moving string + in - section temporary plugging acidizing process can be used to control the acidizing of a single well within 1 day, achieving rapid and precise plugging removal. Thus, problems such as severe scaling exposed in some wells during the production process of shale oil horizontal wells can be solved, and the production capacity can be quickly restored.

[0065] In a specific embodiment, 74 horizontal wells were implemented using the above - mentioned method, with a measure effectiveness rate of 94.6%. The single - well production increased from 3.6 t to 7.8 t, the daily oil - increment level was 216.2 t, the cumulative oil - increment in the current year reached 58,300 tons, and the current cumulative oil - increment has reached 84,500 tons. The rapid restoration effect of the production capacity of long horizontal wells with shale oil blockage is remarkable.

[0066] According to the second aspect of the present invention, a shale oil horizontal well production capacity restoration device is also proposed. Figure 5 Fig. shows a schematic flow chart of a shale oil horizontal well production capacity restoration device 500 according to an embodiment of the present invention. As Figure 5 shown, the device 500 may include: an acquisition module 510, a sorting module 520, an acid - liquid determination module 530, an acid - liquid parameter determination module 540, and an execution module 550.

[0067] The acquisition module 510 is used to acquire the integrated evaluation parameters of the plugging degree;

[0068] The sorting module 520 is used to sort the low - production wells according to the integrated evaluation parameters of the plugging degree to obtain the plugging - removal sequence;

[0069] The acid - liquid determination module 530 is used to select the corresponding plugging - removal acid liquid for plugging removal according to different regions and / or different scale types of the low - production wells;

[0070] The acid - liquid parameter determination module 540 is used to formulate the horizontal well acidizing scheme parameters of the plugging - removal acid liquid based on the simulation calculation results of the shale oil horizontal well numerical model;

[0071] The execution module 550 is used to plug - remove the low - production wells according to the horizontal well acidizing scheme parameters in the plugging - removal sequence.

[0072] Optionally, the device may further include a plugging - removal module, which is used to determine the corresponding acidizing throttle valve and acid - resistant temporary plugging agent according to the sand body distribution, reservoir classification, and sectional fracturing pressure characteristics of the low - production wells; and use a multi - stage sliding sleeve non - moving string and in - section temporary plugging acidizing process to plug - remove the low - production wells.

[0073] According to the third aspect of the present invention, an electronic device is also proposed. Figure 6 Fig. shows a schematic block diagram of an electronic device 600 according to an embodiment of the present invention. As Figure 6As shown, the electronic device 600 includes a processor 610 and a memory 620. Among them, computer program instructions are stored in the memory 620, and when the computer program instructions are run by the processor 610, they are used to execute the shale oil horizontal well productivity recovery method described above.

[0074] According to the fourth aspect of the present invention, a storage medium is further proposed. Program instructions are stored on the storage medium, and when the program instructions are run, they are used to execute the shale oil horizontal well productivity recovery method described above. The storage medium may include, for example, the storage component of a tablet computer, the hard disk of a computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disc read-only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer-readable storage medium may be any combination of one or more computer-readable storage media.

[0075] Those of ordinary skill in the art can understand the specific details and beneficial effects of the shale oil horizontal well productivity recovery device, electronic device, and storage medium by reading the above relevant descriptions of the shale oil horizontal well productivity recovery method. For the sake of brevity, they will not be elaborated here.

[0076] As is known by common technical knowledge, the present invention can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

[0077] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0078] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate for implementing in the process Figure 1 one process or multiple processes and / or blocksFigure 1 means for the functions specified in one or more boxes.

[0079] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction means that implements the functions specified in one Figure 1 process or a plurality of processes and / or boxes Figure 1 or more boxes.

[0080] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus, such that a series of operational steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one Figure 1 process or a plurality of processes and / or boxes Figure 1 or more boxes.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific embodiments of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A method for restoring the productivity of a horizontal well in shale oil, characterized in that, Including: Obtaining integrated evaluation parameters for the plugging degree of low - productivity wells; Sorting the low - productivity wells according to the integrated evaluation parameters of the plugging degree to obtain the unplugging sequence; Selecting corresponding unplugging acid fluids for unplugging according to different regions and / or different scale types of the low - productivity wells; Formulating horizontal well acidizing scheme parameters for the unplugging acid fluids based on the simulation calculation results of a shale oil horizontal well numerical model; Based on the horizontal well acidizing scheme parameters, unplugging the low - productivity wells according to the unplugging sequence.

2. The method for shale oil horizontal well productivity recovery according to claim 1, wherein, The method further includes: Determining corresponding acidizing chokes and acid - resistant temporary plugging agents according to the sand body distribution, reservoir classification, and staged fracturing pressure characteristics of the low - productivity wells; Using a multi - stage sliding sleeve non - moving string and in - stage temporary plugging acidizing technology to unplug the low - productivity wells.

3. The shale oil horizontal well productivity recovery method according to claim 1, characterized in that The integrated evaluation parameters of the plugging degree include: geological factors, completion factors, monthly pressure drop, and fluid replacement rate.

4. The shale oil horizontal well productivity recovery method according to claim 1, wherein The step of selecting corresponding unplugging acid fluids for unplugging according to different regions and / or different scale types of the low - productivity wells includes: Based on the produced water ion analysis of different regions and / or the XRD analysis of the cemented sand blocks of the low - productivity wells, integrating the functions of unplugging, corrosion inhibition, and suppressing secondary precipitation of scaling ions to determine the unplugging acid fluid system.

5. The shale oil horizontal well productivity recovery method according to claim 1, characterized in that The method further includes: Establishing the shale oil horizontal well numerical model to simulate the influence degree of different plugging segments on the bottom - hole flowing pressure.

6. The method for shale oil horizontal well productivity recovery according to claim 5, wherein The step of formulating horizontal well acidizing scheme parameters for the unplugging acid fluids based on the simulation calculation results of a shale oil horizontal well numerical model includes: Simulating the pressure drop funnel curve of different scale - forming depths of fractures to determine the influence of plugging on the pressure drop gradient at different distances from the fracture mouth; Combining the reaction rates of different acid fluid systems to determine the horizontal well acidizing scheme parameters of the unplugging acid fluids.

7. A shale oil horizontal well productivity recovery device, characterized in that, Including: An acquisition module for acquiring integrated evaluation parameters of the plugging degree; A sorting module for sorting low - productivity wells according to the integrated evaluation parameters of the plugging degree to obtain the unplugging sequence; An acid fluid determination module for selecting corresponding unplugging acid fluids for unplugging according to different regions and / or different scale types of the low - productivity wells; An acid fluid parameter determination module for formulating horizontal well acidizing scheme parameters for the unplugging acid fluids based on the simulation calculation results of a shale oil horizontal well numerical model; An execution module for unplugging the low - productivity wells according to the horizontal well acidizing scheme parameters and the unplugging sequence.

8. The shale oil horizontal well productivity recovery device according to claim 7, wherein, The device further includes: An unplugging module for determining corresponding acidizing chokes and acid - resistant temporary plugging agents according to the sand body distribution, reservoir classification, and staged fracturing pressure characteristics of the low - productivity wells; using a multi - stage sliding sleeve non - moving string and in - stage temporary plugging acidizing technology to unplug the low - productivity wells.

9. An electronic device, characterized in that, Including a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are run by the processor, they are used to execute the shale oil horizontal well productivity recovery method according to any one of claims 1 to 7.

10. A storage medium, on which program instructions are stored, and when the program instructions are run, they are used to execute the shale oil horizontal well productivity recovery method according to any one of claims 1 to 7.

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