Fracturing commissioning well blocking remover dosage determination method and device and electronic equipment

Abstract

The invention belongs to the technical field of gas field exploitation, and particularly relates to a method and device for determining the using amount of a blocking remover for a fracturing commissioning well and electronic equipment. The method comprises the following steps: calculating the use amount of a blocking remover at each blocking removal target position of a fracturing production well, and summing the use amount of the blocking remover at each blocking removal target position to obtain the use amount of the blocking remover of the fracturing production well; if the blockage removal target position is a blockage removal well fracturing propping crack or the fracturing propping crack is close to a shaft for a certain distance, the pore volume A in the fracturing propping crack is the use amount of the blockage remover at the position; a is equal to the difference between the original porosity of the fracturing propping agent and the porosity reduction percentage of the propping agent under the fracturing propping fracture stratum compaction condition multiplied by the volume of the fracturing propping agent of the fracturing interval. By adopting the method disclosed by the invention, the accuracy of determining the dosage of the blocking remover of the fracturing commissioning well is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of gas field exploitation, and in particular relates to a method, a device and an electronic device for determining the dosage of a plugging remover for a fracturing production well. Background Art

[0002] In the process of developing tight gas reservoirs, new wells need to be put into production by sand fracturing. As the production time increases, the formation pressure decreases. At the same time, the seepage channel near the wellbore is blocked due to scaling, water lock, clay mineral deposition, etc., which leads to a certain blockage of the entire fluid flow channel from the reservoir to the fracturing support fracture and from the fracturing support fracture to the wellbore, resulting in increased flow resistance and reduced gas well production capacity. Regarding reservoir unblocking, scholars have conducted a lot of research mainly on water lock agents, unblocking agent research, process strings, etc., but there are fewer studies on the dosage of unblocking agents. The cylinder physical model is often used to calculate the unblocking range, and then the unblocking agent dosage is predicted in combination with the expected reservoir unblocking radius, reservoir thickness, porosity, etc. This method for predicting the dosage of plugging remover has good adaptability for gas wells with homogeneous reservoirs and no artificial fractures created by sand fracturing. However, for gas wells with tight sandstone gas reservoirs and fracturing, due to the high difference between the high conductivity channels of the fractures and the permeability of the reservoir itself, the injected plugging remover must enter from the fractures in the direction of the principal stress and then gradually diffuse into the reservoir, rather than uniformly diffuse from the wellbore cylindrical model to the reservoir within a certain radius. Therefore, the use of existing methods to predict and design the dosage of plugging remover for fracturing wells in tight sandstone gas reservoirs is bound to lead to inaccurate dosage design. On the one hand, too small dosage leads to limited unblocking range and unsatisfactory effect. On the other hand, too large dosage leads to difficulty in backflow after gas well measures and long backflow cycle. Similarly, it is difficult for gas wells to produce effectively, resulting in failure of measures. The Chinese invention patent specification with application publication number CN113887088A discloses a method for determining the amount of plugging remover used to remove barite contamination from reservoirs. This method is a method for calculating the amount of plugging remover formulated for reservoir contamination caused by barite-weighted drilling fluid leakage cracks during drilling. This method is only applicable to natural fractures and matrix fractures in the reservoir where the blockage is located, and it is impossible to accurately predict the amount of plugging remover used in fracturing wells. Summary of the invention

[0003] The purpose of the present invention is to provide a method, device and electronic equipment for determining the dosage of a plugging remover for a fracturing well, so as to solve the technical problem that the prior art method has poor accuracy in determining the dosage of a plugging remover for a fracturing well.

[0004] In order to solve the above technical problems, the present invention provides a method for determining the amount of unplugging agent for a fracturing well, comprising: calculating the amount of unplugging agent for each unplugging target position of the fracturing well and summing the amounts of unplugging agent for each unplugging target position to obtain the amount of unplugging agent for the fracturing well; if the unplugging target position is a fracturing propping crack of the unplugging well or a distance near the wellbore of the fracturing propping crack, then the pore volume A in the fracturing propping crack is the amount of unplugging agent at this position; the pore volume A in the fracturing propping crack is equal to the difference between the original porosity of the fracturing proppant and the percentage of porosity reduction of the proppant under the compaction condition of the fracturing propping crack formation, multiplied by the volume of the fracturing proppant in the fractured layer.

[0005] The beneficial effects are as follows: when taking measures to remove blockages in a well put into production by fracturing a tight sandstone gas reservoir, the injected unblocking agent first enters the high-conductivity fracture propping cracks, and then gradually enters the low-conductivity reservoir pores contacting the fracture propping crack surface; when calculating the amount of unblocking agent used for the fracture propping cracks in the unblocking well, the method of the present invention combines the amount and specification of the fracture propping agent and the percentage of reduction in the porosity of the propping agent under compaction conditions, fully considering the obvious difference between the conductivity of the fracture propping cracks and the seepage capacity of the reservoir itself, as well as the flow process and law of the injected unblocking agent, thereby making the calculated amount of unblocking agent used for the fracture propping cracks in the unblocking well more accurate, greatly improving the accuracy of determining the amount of unblocking agent used for the fractured well, thereby effectively solving the problems of limited unblocking range, difficult backflow and long backflow cycle when unblocking the fractured well due to large errors in determining the amount of the antidote.

[0006] Furthermore, if the target location for unplugging is the reservoir near the fracture surface of the fracturing support crack, the reservoir pore volume B of the contaminated zone near the fracture surface of the fracturing support crack is the amount of unplugging agent used at this location; the reservoir pore volume B of the contaminated zone near the fracture surface of the fracturing support crack is equal to twice the product of the fracture height, reservoir porosity, the length of the fracturing support crack of the corresponding fracturing layer section, and the thickness of the contaminated zone near the fracture surface of the fracturing support crack.

[0007] The beneficial effects are as follows: the method of the present invention combines the length of the fracturing support crack of the corresponding fracturing layer section, the height of the fracturing crack, the thickness of the contaminated zone of the reservoir near the fracturing support crack surface, and the reservoir porosity when calculating the amount of the unblocking agent for the reservoir near the fracturing support crack surface; fully considers the obvious difference between the conductivity of the fracturing support crack and the seepage capacity of the reservoir itself, as well as the flow process and law of the injected unblocking agent, so that the calculated amount of the unblocking agent for the fracturing support crack of the unblocking well is more accurate, and further improves the accuracy of determining the amount of the unblocking agent for the fracturing well in production.

[0008] Furthermore, if the target location for unblocking is a distance near the wellbore of the propped fracturing crack, the volume of fracturing proppant in the fracturing layer is equal to twice the product of the length of the unblocking section within half the length of the fracturing propping crack, the width of the fracturing propping crack and the height of the fracturing propping crack.

[0009] In order to solve the above technical problems, the present invention also provides a device for determining the dosage of a plugging remover for a fracturing well, comprising:

[0010] The module for determining the amount of unblocking agent is used to calculate the amount of unblocking agent for each unblocking target position of the fracturing well and sum the amount of unblocking agent for each unblocking target position; if the unblocking target position of the layer section to be unblocked is the fracturing propping crack of the well to be unblocked or a distance near the wellbore of the fracturing propping crack, the module for determining the amount of unblocking agent calculates the amount of unblocking agent for the layer section to be unblocked by: calculating the pore volume A in the fracturing propping crack, where A is the amount of unblocking agent at this position; the pore volume A in the fracturing propping crack is equal to the difference between the original porosity of the fracturing propping agent and the percentage of porosity reduction of the propping agent under the compaction condition of the fracturing propping crack formation multiplied by the volume of the fracturing propping agent in the fracturing layer section.

[0011] The beneficial effect is that when the device of the present invention is used to calculate the amount of unblocking agent for the fracturing propping cracks of the unblocking well, the amount and specification of the fracturing propping agent and the percentage of the reduction in the porosity of the propping agent under compaction conditions are combined, and the obvious difference between the conductivity of the fracturing propping cracks and the seepage capacity of the reservoir itself and the flow process and law of the injected unblocking agent are fully considered, so that the calculated amount of unblocking agent for the fracturing propping cracks of the unblocking well and the amount of unblocking agent for a distance near the wellbore of the fracturing propping cracks are more accurate, which greatly improves the accuracy of the determined amount of unblocking agent for the fracturing well in production, thereby effectively avoiding the problems of limited unblocking range, difficult backflow and long backflow cycle when unblocking the fracturing well in production.

[0012] Furthermore, if the target location for unblocking the layer segment to be unblocked is the reservoir near the fracture surface of the hydraulic fracturing support, the method for the unblocking agent dosage determination module to calculate the unblocking agent dosage of the layer segment to be unblocked is: calculate the reservoir pore volume B of the reservoir contamination zone near the hydraulic fracturing support fracture surface, where B is the unblocking agent dosage at this location; B is equal to twice the product of the hydraulic fracture height, the reservoir porosity, the hydraulic fracturing support fracture length of the corresponding hydraulic fracturing layer segment, and the thickness of the reservoir contamination zone near the hydraulic fracturing support fracture surface.

[0013] Furthermore, if the target location for unblocking is a distance near the wellbore of the fracturing propping crack, the method for calculating the volume of the fracturing proppant in the fracturing layer section by the unblocking agent dosage determination module is: calculating twice the product of the length of the unblocking section within the half length of the fracturing propping crack, the width of the fracturing propping crack and the height of the fracturing propping crack. The twice of this product is the volume of the fracturing proppant in the fracturing layer section.

[0014] To solve the above technical problems, the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for determining the amount of plugging remover for a fracturing well of the present invention is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of the method steps of the present invention. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0017] Example of method for determining dosage of plugging remover for fracturing wells:

[0018] like Figure 1 As shown, the method for determining the amount of plugging remover for a fracturing well of the present invention comprises the following steps:

[0019] Step 1: determine the unblocked layer section of the unblocked well and the unblocking target position of the unblocked layer section.

[0020] Step 2: Calculate the dosage of the unblocking agent for the unblocking layer according to the unblocking target position of the unblocking layer, and sum up the dosage of the unblocking agent for all unblocking layers to obtain the total dosage of the unblocking agent.

[0021] The method for calculating the amount of plugging remover for a certain layer to be deblocked is as follows:

[0022] If the target location for unblocking is the hydraulic fracture propping crack of the unblocked well or a distance near the wellbore of the hydraulic fracture propping crack, the pore volume A in the hydraulic fracture propping crack is the corresponding amount of unblocking agent;

[0023] The pore volume A in the fracturing propped fracture is calculated based on the volume of the fracturing proppant in the corresponding fracturing layer, the porosity of the proppant, and the percentage of porosity reduction of the proppant under the formation compaction conditions. The calculation expression is as follows:

[0024] A=V z *(Φ z -K) (1)

[0025] Where A is the pore volume in the fracture support fracture, unit: m 3 ; V z is the volume of fracturing proppant in the fracturing layer, unit: m 3 ; Φ z is the porosity of the proppant, in %; K is the percentage of porosity reduction of the proppant under the compaction conditions of the fracturing propped fracture formation, in %.

[0026] Among them, if the unblocking target location is to unblock the well fracturing propped fracture, the proppant volume V z It is obtained based on the amount of proppant used in the fracturing layer construction; if the deblocking target location is a distance near the wellbore of the fracturing propping crack, the proppant volume V z It is equal to twice the product of the length of the unblocking section within the half length of the hydraulic fracture support crack, the width of the hydraulic fracture support crack and the height of the hydraulic fracture support crack; Porosity Φ z The porosity reduction percentage K of the proppant under formation compaction conditions is obtained based on the specifications of the proppant used in the fracturing layer construction, and is obtained based on indoor experimental evaluation. The above data can be obtained before fracturing construction.

[0027] If the target location for unblocking is the reservoir near the fracture surface of the hydraulic fracturing support, the pore volume B of the reservoir contamination zone near the fracture surface of the hydraulic fracturing support is the dosage of the unblocking agent.

[0028] The reservoir pore volume B of the reservoir contamination zone near the fracture surface of the fracturing support can be calculated based on the corresponding fracturing layer section fracture support length L, fracture height H, reservoir contamination zone thickness h near the fracture surface of the fracturing support, and reservoir porosity Φ c The specific calculation formula for the reservoir pore volume B in the reservoir contamination zone near the fracture surface of the fracturing support is:

[0029] B=2*L*H*h*Φ c (2)

[0030] Where B is the reservoir pore volume of the reservoir contamination zone near the fracture surface of the fracturing support, unit: m 3 ; H is the height of the fracture, unit is m; L is the length of the fracture support fracture of the corresponding fracture layer, unit is m; h is the thickness of the reservoir contamination zone near the fracture support fracture surface, unit is m; Φ c is the reservoir porosity, in %. The length of the fracturing support fracture in the fracturing layer, the height of the fracturing fracture, and the thickness of the reservoir contamination zone near the fracturing support fracture surface are the length, height, and width in the physical model of the contamination zone volume cube, respectively.

[0031] If the purpose of unblocking is to unblock the well fracturing support cracks and the reservoirs near the cracks, the dosage of the unblocking agent is:

[0032] D=A+B (3)

[0033] If the target location for unblocking is to unblock the well fracturing support cracks close to the wellbore and the reservoir near the cracks, the amount of unblocking agent is:

[0034] E=A+B (4)

[0035] If there are multiple layers to be unblocked in the well to be unblocked, the amount of unblocking agent for each layer is determined according to the specific location of each layer to be unblocked, and then the total amount of unblocking agent for all layers to be unblocked is determined.

[0036] The calculated pore volume A of the fracturing support fracture and the pore volume B of the reservoir contamination zone near the fracturing support fracture surface can be adjusted in a small range according to the specific well conditions in practical applications, and the adjustment ratio is controlled within 5%.

[0037] The method for determining the dosage of the plugging remover for the fracturing well put into production of the present invention is applicable to single-layer or multi-layer vertical wells and directional wells, and is also applicable to staged fracturing horizontal wells.

[0038] In this embodiment, the method for determining the amount of plugging remover for fractured wells of the present invention is verified by using S1 gas well and S2 gas well. Both S1 gas well and S2 gas well are two fractured vertical wells in M ​​gas field.

[0039] The S1 gas well has only one production layer, T2. The fracturing construction of the production layer adopts 20 / 40 mesh ceramsite and 85.1 cubic meters of fracturing proppant. According to the analysis, the main factor affecting the productivity of the S1 well is the retention of liquid phase in the reservoir near the wellbore, which increases the seepage resistance of natural gas in the matrix into the fracture. Therefore, the design of the plugging removal idea is to use a water-locking agent to improve the wettability of the reservoir liquid phase to remove the plugging of the 5cm matrix reservoir near the fracture surface. The length of the fracturing support seam of the T2 fracturing layer is 119m, the height of the fracturing seam is 12.3m, the thickness of the reservoir contamination zone near the fracturing support fracture seam is 5cm, and the reservoir porosity is 8.6%.

[0040] The S2 gas well has two production layers (H3 and H2). The fracturing construction of the production layers uses 20 / 40 mesh ceramsite. The amount of fracturing proppant used in the H3 layer is 55.3 cubic meters, and the amount of fracturing proppant used in the H2 layer is 29 cubic meters. According to the analysis, the main reason for the S2 well to be shut in is that the wellbore tubing, blastholes and scale blockage near the wellbore affect the gas well production. Therefore, the design uses a plugging remover to remove the 15m fracturing propping cracks near the wellbore and blastholes.

[0041] For the S1 gas well, the length of the fracturing support seam of the T2 fracturing layer is 119m, the height of the fracturing seam is 12.3m, the thickness of the reservoir contamination zone near the fracturing support fracture surface is 5cm, and the reservoir porosity is 8.6%. Substituting them into formula (2), the reservoir pore volume of the reservoir contamination zone near the fracturing support fracture surface is calculated to be 25.2 cubic meters. Therefore, the dosage of the plugging agent for this well is designed to be 25.2 cubic meters. At the same time, considering the backflow after the measures of this well, after injecting the plugging agent segment plug, 3 cubic meters of isolation fluid is injected, and then nitrogen is used for displacement and then the well is sealed for 1 day and then released for production. From the production performance of this well after the measures, the daily gas production increased from 1900 cubic meters to 4700 cubic meters, and the bottom hole pressure increased by 1.3MPa, which achieved good results.

[0042] For the S2 gas well, the dosage of the plugging remover is determined, including the following steps:

[0043] 1) Calculate the amount of plugging remover in the H3 layer fracture. According to the extended plugging length of the plugging remover in the half-length propped fracture of 15m, the height of the fracturing fracture propped fracture of 16.7m, the width of the fracturing fracture of 0.016m, the porosity of the proppant of 45%, and the porosity of the proppant reduced by 4 percentage points under the formation compaction conditions, the pore volume in the unblocked fracture is calculated to be 3.3 cubic meters.

[0044] 2) Calculate the amount of plugging remover in the H2 layer fractures. According to the extended plugging length of the plugging remover in the half-length propped fracture of 15m, the height of the fracturing fracture propped fracture of 12.1m, the width of the fracturing fracture of 0.014m, the porosity of the proppant of 45%, and the porosity of the proppant reduced by 4 percentage points under the formation compaction conditions, the pore volume in the fracture is calculated to be 2.1 cubic meters.

[0045] 3) According to the purpose of the S2 well plan, the total amount of drugs used to treat the scale blockage in the near-well fracture pores is 5.4 cubic meters, which is the sum of the pore volume in the H3 layer fracture and the pore volume in the H2 layer fracture. Considering that the wellbore also has scaling, after adding 3.4 cubic meters of wellbore blockage removal, the total amount of blockage remover used is 8.8 cubic meters. After the well was treated, the daily gas production increased from 1,200 cubic meters to 6,400 cubic meters, achieving significant results.

[0046] The method for predicting the amount of plugging remover for a fracturing well in a tight sandstone gas reservoir of the present invention fully considers the obvious difference between the conductivity of the fracturing support crack and the seepage capacity of the reservoir itself, and fully considers the flow characteristics that when taking plugging removal measures for a fracturing well in a tight sandstone gas reservoir, the injected plugging remover first enters the fracturing support crack with high conductivity, and then gradually enters the pores of the reservoir with low conductivity that are in contact with the surface of the fracturing support crack. When calculating the amount of unblocking agent for the fracturing propping cracks of the unblocked wells, the amount of unblocking agent for the reservoir near the fracture surface of the fracturing propping cracks, and the amount of unblocking agent for the reservoir at a distance near the wellbore of the propping cracks, the flow process and law of the injected unblocking agent are taken into consideration, and the calculation is fully combined with the parameters such as the amount and specification of the fracturing propping agent, the reduction of the propping agent porosity under compaction conditions, the thickness of the reservoir contamination zone, and the reservoir porosity, so that the calculated amount of unblocking agent is more accurate, which greatly improves the accuracy of determining the amount of unblocking agent for the fracturing wells, thereby effectively avoiding the problems of limited unblocking range, difficult backflow, and long backflow cycle when unblocking the fracturing wells.

[0047] In addition, the method for determining the amount of plugging remover for a fracturing well of the present invention has the advantages of more comprehensive consideration of parameters, more consistent with geological and physical models and actual well conditions of gas wells, more accurate calculation of parameters, and more effective guidance of application; it can solve the problem that the existing method for determining the amount of plugging remover in a homogeneous reservoir is inaccurate and unsuitable for fracturing wells.

[0048] Embodiment of the device for determining the dosage of plugging remover for fracturing wells:

[0049] The device for determining the dosage of a plugging remover for a fracturing well in production of the present invention comprises:

[0050] The module for determining the amount of the unblocking agent is used to calculate the amount of the unblocking agent for the layer section to be unblocked according to the unblocking target position of the layer section to be unblocked; if the unblocking target position of the layer section to be unblocked is the fracturing propping crack of the well to be unblocked or a distance near the wellbore of the fracturing propping crack, the module for determining the amount of the unblocking agent calculates the amount of the unblocking agent for the layer section to be unblocked by: calculating the pore volume A in the fracturing propping crack, where A is the amount of the unblocking agent for the layer section to be unblocked; the pore volume A in the fracturing propping crack is equal to the difference between the original porosity of the fracturing propping agent and the percentage of porosity reduction of the propping agent under the compaction condition of the fracturing propping crack formation multiplied by the volume of the fracturing propping agent in the fracturing layer section.

[0051] If the unblocking target position of the unblocking layer section is the reservoir near the fracture surface of the hydraulic fracturing support, the method for the unblocking agent dosage determination module to calculate the unblocking agent dosage of the unblocking layer section is as follows: calculate the reservoir pore volume B of the reservoir contamination zone near the hydraulic fracturing support fracture surface, where B is the unblocking agent dosage at this position; B is equal to twice the product of the hydraulic fracture height, reservoir porosity, the length of the hydraulic fracturing support fracture of the corresponding hydraulic fracturing layer section, and the thickness of the reservoir contamination zone near the hydraulic fracturing support fracture surface.

[0052] If the target location for unblocking is a distance near the wellbore of the fracturing propping crack, the method for the unblocking agent dosage determination module to calculate the volume of the fracturing propping agent in the fracturing layer section is: calculate twice the product of the unblocking section length within the half length of the fracturing propping crack, the width of the fracturing propping crack and the height of the fracturing propping crack. The twice of this product is the volume of the fracturing propping agent in the fracturing layer section.

[0053] The device for determining the amount of plugging remover for a fracturing well put into production of the present invention is a virtual device, corresponding to the method for determining the amount of plugging remover for a fracturing well put into production of the present invention, and each module is a functional module, corresponding to the corresponding step of the method for determining the amount of plugging remover for a fracturing well put into production of the present invention.

[0054] The process, specific details and technical effects of using the device for determining the dosage of plugging remover for a fracturing well in production to determine the dosage of plugging remover for a fracturing well in production have been described in the embodiment of the method for determining the dosage of plugging remover for a fracturing well in production, and will not be repeated here.

[0055] Electronic device embodiment:

[0056] The electronic device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for determining the amount of plugging remover for a fracturing well of the present invention is implemented. The specific steps and technical effects of the method for determining the amount of plugging remover for a fracturing well of the present invention have been described in the embodiment of the method for determining the amount of plugging remover for a fracturing well, and will not be repeated here.

[0057] The processor may be a microprocessor MCU, a programmable logic device FPGA or other processing device.

[0058] The memory can be any type of memory that uses electrical energy to store information.

Claims

1. A method for determining the dosage of a plugging remover for a fracturing well, characterized in that: include: Calculate the amount of unblocking agent used for each unblocking target position of the fracturing well, and sum up the amount of unblocking agent used for each unblocking target position to obtain the amount of unblocking agent used for the fracturing well; if the unblocking target position is the fracturing propping crack of the unblocking well or a distance near the wellbore of the fracturing propping crack, then the pore volume A in the fracturing propping crack is the amount of unblocking agent used at this position; the pore volume A in the fracturing propping crack is equal to the difference between the original porosity of the fracturing proppant and the percentage of porosity reduction of the proppant under the compaction condition of the fracturing propping crack formation multiplied by the volume of the fracturing proppant in the fractured layer.

2. The method for determining the amount of plugging remover for a fracturing well according to claim 1, characterized in that: If the target location for unplugging is the reservoir near the fracture surface of the fracture support, then the reservoir pore volume B of the contaminated zone near the fracture support is the amount of unplugging agent used at this location; the reservoir pore volume B of the contaminated zone near the fracture support is equal to twice the product of the fracture height, reservoir porosity, the length of the fracture support fracture of the corresponding fracture layer section, and the thickness of the contaminated zone near the fracture support fracture.

3. The method for determining the dosage of the plugging remover for a fracturing well as claimed in claim 1 or 2, characterized in that: If the target location for unblocking is a distance near the wellbore of the fracturing propping crack, the volume of fracturing proppant in the fracturing layer is equal to twice the product of the length of the unblocking section within half the length of the fracturing propping crack, the width of the fracturing propping crack and the height of the fracturing propping crack.

4. A device for determining the dosage of a plugging remover for a fracturing well, characterized in that: include: The module for determining the amount of unblocking agent is used to calculate the amount of unblocking agent for each unblocking target position of the fracturing well and sum the amount of unblocking agent for each unblocking target position; if the unblocking target position of the layer section to be unblocked is the fracturing propping crack of the well to be unblocked or a distance near the wellbore of the fracturing propping crack, the module for determining the amount of unblocking agent calculates the amount of unblocking agent for the layer section to be unblocked by: calculating the pore volume A in the fracturing propping crack, where A is the amount of unblocking agent at this position; the pore volume A in the fracturing propping crack is equal to the difference between the original porosity of the fracturing propping agent and the percentage of porosity reduction of the propping agent under the compaction condition of the fracturing propping crack formation multiplied by the volume of the fracturing propping agent in the fracturing layer section.

5. The device for determining the amount of plugging remover for a fracturing well as claimed in claim 4, characterized in that: If the unblocking target position of the unblocking layer section is the reservoir near the fracture surface of the hydraulic fracturing support, the method for the unblocking agent dosage determination module to calculate the unblocking agent dosage of the unblocking layer section is as follows: calculate the reservoir pore volume B of the reservoir contamination zone near the hydraulic fracturing support fracture surface, where B is the unblocking agent dosage at this position; B is equal to twice the product of the hydraulic fracture height, reservoir porosity, the length of the hydraulic fracturing support fracture of the corresponding hydraulic fracturing layer section, and the thickness of the reservoir contamination zone near the hydraulic fracturing support fracture surface.

6. The device for determining the amount of plugging remover for a fracturing well as claimed in claim 4 or 5, characterized in that: If the target location for unblocking is a distance near the wellbore of the fracturing propping crack, the method for the unblocking agent dosage determination module to calculate the volume of the fracturing propping agent in the fracturing layer section is: calculate twice the product of the unblocking section length within the half length of the fracturing propping crack, the width of the fracturing propping crack and the height of the fracturing propping crack. The twice of this product is the volume of the fracturing propping agent in the fracturing layer section.

7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the computer program is executed by the processor, the method for determining the amount of plugging remover for a fractured well in production as claimed in any one of claims 1 to 3 is implemented.

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