Fracturing effect evaluation method, device, storage medium and electronic equipment

Abstract

The present invention discloses a method, device, storage medium and electronic device for evaluating the effect of fracturing. The method includes: obtaining the starting coordinates, end coordinates and formation time of each fracture line segment in the fracture network obtained by fracturing treatment, obtaining the main fracture according to the starting coordinates, end coordinates and formation time of each fracture line segment, obtaining the fracturing radius according to the starting coordinates and end coordinates of multiple fracture line segments included in the main fracture, and searching the fracturing effect corresponding to the fracturing radius from the correspondence table between the preset radius and the fracturing effect. By adopting the above method, the reliability of the obtained fracturing radius can be effectively ensured, and then the reliability of the obtained fracturing effect can be effectively improved, so as to facilitate the development and production of oil and gas fields according to the fracturing effect.

Description

Technical Field

[0001] The invention belongs to the field of microseismic data interpretation, and specifically relates to a fracturing effect evaluation method, device, storage medium and electronic equipment. Background Art

[0002] Microseismic monitoring mainly receives signals generated by rock fractures and locates them through a series of processing, so as to obtain the location of rock fractures and reveal the effect of fracturing. Fracturing volume is a well-known parameter for evaluating the effect of fracturing. In addition, fracturing radius is also a parameter for describing the effect of fracturing. At the same time, fracturing radius is also an important parameter for fracturing engineering design.

[0003] At present, the research on fracturing radius is mainly based on the study of the relationship between fracturing process, fracturing parameters and fracturing radius based on fracturing numerical simulation, so as to realize the theoretical calculation of fracturing radius. In fracturing interpretation, the traditional fracturing radius interpretation method measures the fracturing radius by measuring the scattered distribution range of microseismic positioning. The measurement method inevitably has human errors, is highly subjective and inefficient, and thus when the fracturing effect is determined based on the fracturing radius, there is a large error in the fracturing effect, which is not conducive to the development and production of oil and gas fields. Summary of the invention

[0004] The present invention provides a method, device, storage medium and electronic device for evaluating fracturing effect, which improves the accuracy and reliability of the fracturing effect obtained according to the fracturing radius by accurately calculating the fracturing radius, thereby facilitating the development and production of oil and gas fields according to the fracturing effect.

[0005] In a first aspect, the present invention provides a method for evaluating a fracturing effect, the method comprising:

[0006] Obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment;

[0007] A main fracture is obtained according to the starting point coordinates, the end point coordinates and the formation time of each of the fracture line segments, wherein the main fracture includes a plurality of fracture line segments, the plurality of fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment;

[0008] Obtaining a fracturing radius according to the starting point coordinates and the ending point coordinates of a plurality of fracture line segments included in the main fracture;

[0009] The fracturing effect corresponding to the fracturing radius is searched from the correspondence table between the preset radius and the fracturing effect.

[0010] Optionally, in the above-mentioned fracturing effect evaluation method, obtaining the main fracture according to the starting point coordinates, end point coordinates and formation time of each fracture line segment includes:

[0011] Step S122a: obtaining the crack line segment with the earliest formation time according to the crack formation time of each crack line segment, and marking the crack line segment with the earliest formation time;

[0012] Step S122b: determining whether there is a target crack segment among the unmarked crack segments included in the plurality of crack segments, whose starting point coordinates or ending point coordinates are the same as the starting point coordinates or ending point coordinates of the marked crack segment;

[0013] Step S122c: When there is a target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, mark the target crack segment and return to step S122b, until there is no target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, and the broken line segment obtained by connecting the starting point coordinates and end point coordinates of each target crack segment is used as the main crack.

[0014] Optionally, in the above-mentioned fracturing effect evaluation method, obtaining the main fracture according to the starting point coordinates, end point coordinates and formation time of each fracture line segment includes:

[0015] Step S124a: sorting the crack line segments according to the formation time of each crack line segment to obtain the sorting order of the crack line segments, and obtaining the crack line segment with the earliest formation time as the first crack line segment, and setting the branch index of the first crack line segment to a first set value;

[0016] Step S124b: judging whether there is a next crack line segment whose formation time is adjacent to that of the first crack line segment according to the sorting order;

[0017] Step S124c: when there is a next crack line segment whose formation time is adjacent to the first crack line segment, obtain the next crack line segment corresponding to the next formation time adjacent to the formation time of the first crack line segment from the sorting order of the crack line segments.

[0018] Step S124d: Determine whether the starting point of the next crack line segment is the starting point or the end point of the first crack line segment.

[0019] Step S124e: When the starting point of the next crack line segment is the starting point or end point of the first crack line segment, the next crack line segment is used as a new first crack line segment, and the branch index of the first crack line segment is set to the first set value, and the process returns to step S124b; or when the starting point of the next crack line segment is not the starting point or end point of the first crack line segment, the next crack line segment is used as a new first crack line segment, and the branch index of the first crack line segment is set to the second set value, and the process returns to step S124b, until there is no next crack line segment adjacent to the first crack line segment in the sorting order of the crack line segments, and the broken line segment formed by connecting all the crack line segments with branch indices of the first set value is used as the main crack.

[0020] Optionally, in the above-mentioned fracturing effect evaluation method, the method further comprises:

[0021] Acquire fracturing parameters during fracturing treatment;

[0022] Searching for the fracturing effect corresponding to the fracturing radius from a correspondence table between preset radii and fracturing effects includes:

[0023] The fracturing effect corresponding to the fracturing radius and the fracturing parameters is searched from the correspondence table of the preset radius, preset parameters and the fracturing effect.

[0024] Optionally, in the above-mentioned fracturing effect evaluation method, the fracturing parameters include one or more of the swept volume, the lateral swept length, width and longitudinal swept height represented by the main fracture, and the fracture complexity.

[0025] Optionally, in the above-mentioned fracturing effect evaluation method, obtaining the fracturing radius according to the starting point coordinates and the end point coordinates of the plurality of points selected in the main fracture includes:

[0026] Dividing the main seam into a first main seam and a second main seam according to the starting point of the earliest crack line segment formed in the main seam;

[0027] A first fracturing radius corresponding to the first main fracture and a second fracturing radius corresponding to the second main fracture are obtained according to the starting point coordinates and the ending point coordinates of the fracture line segments respectively included in the first main fracture and the second main fracture.

[0028] Optionally, in the above-mentioned fracturing effect evaluation method, searching for the fracturing effect corresponding to the fracturing radius from a correspondence table between preset radii and fracturing effects includes:

[0029] The fracturing effects corresponding to the first fracturing radius and the second fracturing radius are searched from a table of correspondence between preset radii and fracturing effects.

[0030] In a second aspect, the present application also provides a fracturing effect evaluation device, the device comprising:

[0031] A data acquisition module, used to obtain the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by fracturing treatment;

[0032] A main fracture acquisition module, configured to obtain a main fracture according to the starting point coordinates, the end point coordinates and the formation time of each of the fracture line segments, wherein the main fracture includes a fracture line segment with the earliest formation time, and includes a plurality of fracture line segments, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment;

[0033] A radius obtaining module, used to obtain a fracturing radius according to the starting point coordinates and the end point coordinates of a plurality of fracture line segments included in the main fracture;

[0034] The effect evaluation module is used to search for the fracturing effect corresponding to the fracturing radius from the corresponding relationship table between the preset radius and the fracturing effect.

[0035] In a third aspect, the present invention further provides a storage medium storing a computer program, wherein the computer program, when executed by one or more processors, implements the above-mentioned method for evaluating the fracturing effect.

[0036] In a fourth aspect, the present invention provides an electronic device, characterized in that it includes a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the above-mentioned fracturing effect evaluation method is executed.

[0037] The present invention provides a method, device, storage medium and electronic device for evaluating the effect of fracturing, the method comprising: obtaining the starting coordinates, end coordinates and formation time of each fracture line segment in the fracture network obtained by fracturing treatment, obtaining the main fracture according to the starting coordinates, end coordinates and formation time of each fracture line segment, obtaining the fracturing radius according to the starting coordinates and end coordinates of the multiple fracture line segments included in the main fracture, and searching the fracturing effect corresponding to the fracturing radius from the correspondence table between the preset radius and the fracturing effect. By adopting the above method, the reliability of the obtained fracturing radius can be effectively ensured, and then the reliability of the obtained fracturing effect can be effectively improved, so as to facilitate the development and production of oil and gas fields according to the fracturing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the technical solution of the present application or the prior art, and constitute a part of the specification. Among them, the accompanying drawings expressing the embodiments of the present application are used together with the embodiments of the present application to explain the technical solution of the present application, but do not constitute a limitation on the technical solution of the present application.

[0039] Figure 1 A schematic diagram of a flow chart of a method for evaluating a fracturing effect provided in an embodiment of the present application.

[0040] Figure 2 for Figure 1 Schematic diagram of the process of step S120.

[0041] Figure 3 for Figure 1 Another flowchart diagram of step S120 in FIG.

[0042] Figure 4 A schematic diagram of a fracture network formed by fracturing provided in an embodiment of the present application.

[0043] Figure 5 A schematic diagram of a main seam provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve corresponding technical effects can be fully understood and implemented accordingly. The embodiments of the present application and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the protection scope of the present invention.

[0045] In addition, the steps shown in the flowchart of the accompanying drawings can be executed in a computer such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that here.

[0046] First embodiment

[0047] See also Figure 1 This embodiment provides a method for evaluating a fracturing effect, comprising:

[0048] Step S110: obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment.

[0049] It should be noted that fracturing in the petroleum field usually refers to a method of forming cracks in oil and gas layers by using hydraulic force or high-energy gas pressure during oil or gas production.

[0050] Fracturing is to artificially create cracks in the formation, that is, to form a channel with high conductivity between the bottom layer and the wellbore, improve the flow environment of oil underground, and enable oil and gas flow to flow through the channel, thereby increasing the production of oil wells. It plays an important role in improving the flow conditions at the bottom of the oil well, slowing down the interlayer and improving the production of oil layers. After the oil well production reaches a certain stage, the production capacity and permeability decrease. By using fracturing technology, the oil discharge capacity can be enhanced and the oil well production can be increased.

[0051] Hydraulic fracturing is a process whereby a high-pressure pump truck on the ground injects fluid into a well at high speed, and uses the high pressure at the bottom of the well to break the oil layer rock and produce cracks. In order to prevent the pressure from dropping and the cracks from closing again after the pump truck stops working, sand with a density several times greater than that of the formation is mixed into the injected liquid after the formation is broken. The sand enters the cracks together with the fluid and stays in the cracks permanently, supporting the cracks in an open state and improving the oil flow environment for a long time. The current hydraulic fracturing technology is very mature, and has a significant effect on increasing oil well production. It has long been the preferred common technology. The production increase effect is particularly prominent for oil layers with very small oil flow channels, that is, low permeability.

[0052] By utilizing hydraulic force or high-energy gas pressure in the well to build up high pressure near the bottom of the well, a fracture network consisting of multiple fracture segments is gradually formed in the formation. Since different fracture segments are formed at different times and can be counted, a coordinate system is constructed based on the fracturing center, and the starting point coordinates, end point coordinates and formation time of each fracture segment included in the fracture network obtained by the fracturing treatment can be obtained.

[0053] Step S120: obtaining a main fracture according to the starting point coordinates, end point coordinates and formation time of each of the fracture line segments, wherein the main fracture includes a plurality of fracture line segments, the plurality of fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or end point coordinates of a fracture line segment connected to the target fracture line segment.

[0054] It should be noted that the fracture network usually includes main fractures and secondary fractures. Secondary fractures will continue to branch to form secondary or even multi-level secondary fractures. The starting point of the secondary fracture is usually at other points of the fracture line segment of the main fracture except the starting point or the end point. Therefore, the main fracture usually consists of multiple fracture line segments, and the multiple fracture line segments include the starting point of the fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment in the multiple fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment. That is, the main fracture can be a broken line segment formed by connecting multiple fracture line segments in sequence, and the broken line segment includes the fracture line segment with the earliest formation time. It can be understood that the main fracture can also be a tree diagram formed by connecting multiple fracture line segments, and the multiple fracture line segments forming the tree diagram include the fracture line segment with the earliest formation time.

[0055] The above-mentioned method of obtaining the main seam according to the starting point coordinates, end point coordinates and formation time of each of the crack line segments can be: marking the crack line segment with the earliest crack formation time among the multiple crack line segments in the crack network, and detecting whether there is an unmarked line segment included in the multiple crack line segments whose starting point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack line segment, and marking the unmarked crack line segment whose detected starting point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack line segment and detecting again, until there is no target crack line segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack line segment in the unmarked crack line segments, and the broken line segment obtained by connecting the starting and ending point coordinates of each marked crack line segment is used as the main seam.

[0056] The above method of obtaining the main fracture according to the starting point coordinates, end point coordinates and formation time of each fracture line segment can also be: according to the starting and ending point coordinate information of each fracture line segment. Assuming that the fracture network is composed of N line segments, there are 2N coordinate data pairs, corresponding to the starting and ending point coordinates of the N line segments. According to this information, according to the time sequence of fracture formation, the branch index of the first fracture is first defined as 1. If the starting point of the next fracture is connected to the starting and ending points with branch index i (i=1,2,3,...,N), the branch index of the fracture is i, otherwise the branch index is i+1; then the cycle is repeated until i=N, and the iteration is terminated to obtain the branch index of each fracture on the fracture network. According to the above branch index definition, the fracture with branch index i+1 is a branch fracture formed on branch index i, which belongs to the next level fracture. By analogy, the fracture line segment with branch index 1 constitutes the main fracture. Since the fracturing radius is determined by the main fracture, the quantitative calculation of the fracturing radius only requires obtaining the main fracture. That is, the crack line segment with a branch index of 1 is taken out, and the broken line segment formed by the crack line segment with a branch index of 1 is taken as the main crack.

[0057] Step S130: obtaining a fracturing radius according to the starting point coordinates and the ending point coordinates of the plurality of fracture line segments included in the main fracture.

[0058] The method of obtaining the fracturing radius according to the starting point coordinates and the ending point coordinates of the multiple fracture line segments included in the main fracture may specifically be as follows: the length of each fracture line segment included in the main fracture is obtained according to the starting point coordinates and the ending point coordinates of each fracture line segment included in the main fracture, and the lengths of each fracture line segment included in the main fracture are accumulated to obtain the main fracture radius.

[0059] Step S140: searching for the fracturing effect corresponding to the fracturing radius from a correspondence table between preset radii and fracturing effects.

[0060] The corresponding relationship table stores different fracturing radii and fracturing effects corresponding to different fracturing radii, so the reliability of the obtained fracturing effect can be effectively improved, thereby facilitating reliable development and production of oil and gas fields based on the fracturing effect.

[0061] To further ensure the reliability of the obtained fracturing radius, in this embodiment, the method may further include obtaining fracturing parameters during fracturing treatment, wherein the fracturing parameters include one or more of the swept volume, the lateral swept length, width and longitudinal swept height represented by the main fracture, and the fracture complexity.

[0062] The above step S140 may specifically be: searching for the fracturing effect corresponding to the fracturing radius and the fracturing parameters from a correspondence table of preset radius, preset parameters and fracturing effects.

[0063] The swept volume is the ratio of the reservoir volume swept by the injected water to the total reservoir volume in the water drive reservoir.

[0064] The fracture height and the fracture width of the fracture line segment can be obtained by performing CNL logging after fracturing using the missing ceramsite proppant and comparing the results with those before fracturing.

[0065] The process of obtaining the fracture complexity is as follows: obtaining geological parameters, completion parameters and fracturing construction parameters; establishing a fracturing fluid flow field model in hydraulic fractures; establishing a reservoir stress field model during fracturing by a two-dimensional displacement discontinuity method; establishing a fracture propagation model for fractured reservoirs based on the interaction criterion between hydraulic fractures and natural fractures, solving the fracture propagation model for fractured reservoirs based on geological parameters, completion parameters and fracturing construction parameters to obtain geometric parameters of multiple clusters of fracturing fractures in a horizontal well section of the fractured reservoir, establishing a fracture complexity calculation model based on fractal theory and box counting dimension method, and calculating the fracture complexity by a linear fitting method based on the geometric parameters of the fractures and the fracture complexity calculation model.

[0066] Among them, the geological parameters include reservoir thickness, horizontal maximum principal stress, horizontal minimum principal stress, Young's modulus, Poisson's ratio, rock tensile strength, and the average length, azimuth, density, inherent shear strength and wall friction coefficient of natural fractures; the completion parameters include the number of perforation clusters, the number of perforations and the perforation diameter; the fracturing construction parameters include the type of fracturing fluid, construction displacement, etc.

[0067] Through the above method, the reliability and accuracy of the obtained fracturing effect can be effectively improved, thereby facilitating the development and production of oil and gas fields.

[0068] Embodiment 2

[0069] Please refer to Figure 2 This embodiment provides a method for evaluating a fracturing effect, comprising:

[0070] Step S110: obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment.

[0071] For the detailed description of the above step S110, please refer to the detailed description in the first embodiment, which will not be described in detail here.

[0072] Step S122a: obtaining the crack segment with the earliest formation time according to the crack formation time of each crack segment, and marking the crack segment with the earliest formation time.

[0073] Step S122b: Determine whether there is a target crack segment among the unmarked crack segments included in the plurality of crack segments, whose start point coordinates or end point coordinates are the same as the start point coordinates or end point coordinates of the marked crack segment.

[0074] Step S122c: When there is a target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, mark the target crack segment and return to step S122b until there is no target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, then execute step S122d: use the broken line segment obtained by connecting the starting point coordinates and end point coordinates of each of the target crack segments as the main crack.

[0075] Through the above steps S122a to S122d, a main fracture including multiple fracture line segments is obtained, wherein the multiple fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the multiple fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment.

[0076] Step S130: obtaining a fracturing radius according to the starting point coordinates and the ending point coordinates of the plurality of fracture line segments included in the main fracture.

[0077] Regarding the method of obtaining the above-mentioned fracturing radius, reference may be made to the specific description of step S130 in the first embodiment, which will not be described in detail here.

[0078] Step S140: searching for the fracturing effect corresponding to the fracturing radius from a correspondence table between preset radii and fracturing effects.

[0079] Among them, in order to ensure the reliability of the obtained fracturing radius, in this embodiment, the method may also include obtaining fracturing parameters during fracturing treatment, and the above step S140 may specifically be: searching for the fracturing effect corresponding to the fracturing radius and fracturing parameters from a correspondence table between preset radius, preset parameters and fracturing effects.

[0080] The fracturing parameters include one or more of the swept volume, the fracture height and the fracture width of each fracture line segment included in the main fracture, and the fracture complexity.

[0081] The swept volume is the ratio of the reservoir volume swept by the injected water to the total reservoir volume in the water drive reservoir.

[0082] The fracture height and the fracture width of the fracture line segment can be obtained by performing CNL logging after fracturing using the missing ceramsite proppant and comparing the results with those before fracturing.

[0083] The process of obtaining the fracture complexity is as follows: obtaining geological parameters, completion parameters and fracturing construction parameters; establishing a fracturing fluid flow field model in hydraulic fractures; establishing a reservoir stress field model during fracturing by a two-dimensional displacement discontinuity method; establishing a fracture propagation model for fractured reservoirs based on the interaction criterion between hydraulic fractures and natural fractures, solving the fracture propagation model for fractured reservoirs based on geological parameters, completion parameters and fracturing construction parameters to obtain geometric parameters of multiple clusters of fracturing fractures in a horizontal well section of the fractured reservoir, establishing a fracture complexity calculation model based on fractal theory and box counting dimension method, and calculating the fracture complexity by a linear fitting method based on the geometric parameters of the fractures and the fracture complexity calculation model.

[0084] By searching for the fracturing effect corresponding to the fracturing radius and the fracturing parameters from the corresponding relationship table between the preset radius, the preset parameters and the fracturing effect, the reliability of the obtained fracturing effect can be effectively improved.

[0085] Embodiment 3

[0086] Please refer to Figure 3 This embodiment provides a method for evaluating a fracturing effect, comprising:

[0087] Step S110: obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment.

[0088] For the detailed description of the above step S110, please refer to the detailed description in the first embodiment, which will not be described in detail here.

[0089] Step S124a: Sort the crack line segments according to the formation time of each crack line segment to obtain the sorting order of the crack line segments, obtain the crack line segment with the earliest formation time as the first crack line segment, and set the branch index of the first crack line segment to the first set value.

[0090] The first setting value may be 1 or any other value, and may be set according to actual needs.

[0091] Sorting each crack line segment according to the formation time of each crack line segment may be to sort the multiple crack line segments in order according to the formation time, so as to obtain the sorting order of each crack line segment.

[0092] Step S124b: judging whether there is a next crack line segment whose formation time is adjacent to that of the first crack line segment according to the sorting order;

[0093] Step S124c: when there is a next crack line segment whose formation time is adjacent to the first crack line segment, obtain the next crack line segment corresponding to the next formation time adjacent to the formation time of the first crack line segment from the sorting order of the crack line segments.

[0094] Step S124d: Determine whether the starting point of the next crack line segment is the starting point or the end point of the first crack line segment.

[0095] Step S124e: when the starting point of the next crack line segment is the starting point or the end point of the first crack line segment, the next crack line segment is used as a new first crack line segment, and the branch index of the first crack line segment is set to the first set value, and the process returns to step S124b;

[0096] Step S124f: When the starting point of the next crack segment is not the starting point or the end point of the first crack segment, the next crack segment is used as a new first crack segment, and the branch index of the first crack segment is set to the second set value, and the process returns to step S124b until there is no next crack segment adjacent to the first crack segment in the sorting order of the crack segments, and then step S124g is executed: the broken line segment formed by connecting all the crack segments whose branch index is the first set value is used as the main crack.

[0097] Specifically, when the branch index of the first crack segment is i=1, and the starting point of the next crack segment adjacent to the first crack segment is connected to the starting point or end point of the first crack segment (the starting and ending points with a branch index of i=1), the branch index of the next crack segment is i+1; then the cycle is repeated in sequence to obtain the branch index of each crack in the crack network.

[0098] Through the above steps S124a to S124d, a main fracture including multiple fracture line segments is obtained, wherein the multiple fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the multiple fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment.

[0099] Step S130: obtaining a fracturing radius according to the starting point coordinates and the ending point coordinates of the plurality of fracture line segments included in the main fracture.

[0100] Regarding the method of obtaining the above-mentioned fracturing radius, reference may be made to the specific description of step S130 in the first embodiment, which will not be described in detail here.

[0101] Step S140: searching for the fracturing effect corresponding to the fracturing radius from a correspondence table between preset radii and fracturing effects.

[0102] Among them, in order to ensure the reliability of the obtained fracturing radius, in this embodiment, the method may also include obtaining fracturing parameters during fracturing treatment, and the above step S140 may specifically be: searching for the fracturing effect corresponding to the fracturing radius and fracturing parameters from a correspondence table between preset radius, preset parameters and fracturing effects.

[0103] The fracturing parameters include one or more of the swept volume, the fracture height and the fracture width of each fracture line segment included in the main fracture, and the fracture complexity.

[0104] The swept volume is the ratio of the reservoir volume swept by the injected water to the total reservoir volume in the water drive reservoir.

[0105] The fracture height and the fracture width of the fracture line segment can be obtained by performing CNL logging after fracturing using the missing ceramsite proppant and comparing the results with those before fracturing.

[0106] The process of obtaining the fracture complexity is as follows: obtaining geological parameters, completion parameters and fracturing construction parameters; establishing a fracturing fluid flow field model in hydraulic fractures; establishing a reservoir stress field model during fracturing by a two-dimensional displacement discontinuity method; establishing a fracture propagation model for fractured reservoirs based on the interaction criterion between hydraulic fractures and natural fractures, solving the fracture propagation model for fractured reservoirs based on geological parameters, completion parameters and fracturing construction parameters to obtain geometric parameters of multiple clusters of fracturing fractures in a horizontal well section of the fractured reservoir, establishing a fracture complexity calculation model based on fractal theory and box counting dimension method, and calculating the fracture complexity by a linear fitting method based on the geometric parameters of the fractures and the fracture complexity calculation model.

[0107] By searching for the fracturing effect corresponding to the fracturing radius and the fracturing parameters from the corresponding relationship table between the preset radius, the preset parameters and the fracturing effect, the reliability of the obtained fracturing effect can be effectively improved.

[0108] Embodiment 4

[0109] This embodiment provides a method for evaluating a fracturing effect, comprising:

[0110] Step S110: obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment.

[0111] For the description of step S110, reference may be made to the specific description in the first embodiment, and will not be repeated here.

[0112] Step S120: obtaining a main fracture according to the starting point coordinates, end point coordinates and formation time of each of the fracture line segments, wherein the main fracture includes a plurality of fracture line segments, the plurality of fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or end point coordinates of a fracture line segment connected to the target fracture line segment.

[0113] Step S132: dividing the main seam into a first main seam and a second main seam according to the starting point of the earliest crack line segment formed in the main seam.

[0114] Step S142: obtaining a first fracturing radius corresponding to the first main fracture and a second fracturing radius corresponding to the second main fracture according to the starting point coordinates and the ending point coordinates of the fracture segments respectively included in the first main fracture and the second main fracture.

[0115] The method of obtaining the first fracturing radius according to the starting point coordinates and the ending point coordinates of the plurality of fracture line segments included in the first main fracture may specifically be as follows: obtaining the length of each fracture line segment included in the first main fracture according to the starting point coordinates and the ending point coordinates of each fracture line segment included in the first main fracture, and accumulating the lengths of each fracture line segment included in the first main fracture to obtain the first fracturing radius corresponding to the first main fracture.

[0116] Obtaining the second fracturing radius according to the starting point coordinates and the end point coordinates of the plurality of fracture line segments included in the second main fracture may specifically be: obtaining the length of each fracture line segment included in the second main fracture according to the starting point coordinates and the end point coordinates of each fracture line segment included in the second main fracture, and accumulating the lengths of each fracture line segment included in the second main fracture to obtain the second fracturing radius corresponding to the second main fracture.

[0117] Step S142: searching for the fracturing effects corresponding to the first fracturing radius and the second fracturing radius from a table of correspondences between preset radii and fracturing effects.

[0118] The corresponding relationship table stores different first fracturing radii and different second fracturing radii and the fracturing effects corresponding to the different first fracturing radii and second fracturing radii, respectively. Therefore, the reliability of the obtained fracturing effect can be effectively improved, thereby facilitating reliable development and production of oil and gas fields based on the fracturing effect.

[0119] It should be noted that when performing fracturing treatment, the starting point of the fracture line segment with the earliest formation time is the perforation of the wellbore, and the main fracture is divided with the wellbore as the center to obtain the first main fracture located on the right wing of the wellbore and the second main fracture located on the left wing of the wellbore. Among them, each fracture can be recorded as a vector The wellbore trajectory can also be expressed as a vector If the result is positive, then the vector In vector In the clockwise direction, the crack is located on the right wing of the wellbore; otherwise, the crack is located on the left wing of the wellbore.

[0120] The following formulas are used to calculate the first fracturing radius on the right wing of the wellbore and the second fracturing radius on the left wing of the wellbore. L right is the first fracturing radius, N right is the total number of main seams in the right wing seam network, L i is the length of the i-th crack segment; L left is the second fracturing radius, N left is the total number of main seams in the left wing seam network, L i is the length of the i-th crack segment.

[0121] The length of any crack segment is calculated based on the coordinates of the starting point and the end point of the crack segment.

[0122] It can be understood that when searching for the fracturing effect corresponding to the first fracturing radius and the second fracturing radius from the correspondence table of preset radii and fracturing effects, the method may be:

[0123] Acquire fracturing parameters during fracturing treatment;

[0124] The fracturing effect corresponding to the first fracturing radius, the second fracturing radius and the fracturing parameter is searched from the correspondence table of preset radius, preset parameter and fracturing effect.

[0125] Through the above arrangement, the reliability of the fracturing effect obtained according to the first fracturing radius and the second fracturing radius can be effectively ensured.

[0126] Please combine Figure 4 and Figure 5 The experiment was conducted using the ground monitoring microseismic data of a certain work area in Fuling, and the fracture network of a certain fracturing section was obtained. The figure is represented by a coordinate system, and the units of the horizontal and vertical coordinate points in the coordinate system are meters (m). Among them, most fracturing cracks are generated within 180 minutes after the start of fracturing. Within 80 minutes of the initial fracturing, fracturing mainly produces main fractures and a small number of right-wing branch fractures; within 80 minutes to 120 minutes of fracturing, branch fractures are mainly generated near the wellbore and on the right wing of the wellbore; within 120 minutes to 180 minutes, branch fractures are mainly generated on the left wing of the wellbore. In addition to providing fracture morphology, the fracture network also provides the start and end coordinates of each fracture line segment in the fracture network and the time of fracture generation. The method proposed in this case is used to obtain the branch index of each fracture in the fracture network, and the branch index is obtained to obtain multiple fracture line segments with a branch index of 1. The broken line segment formed by the fracture line segments with a branch index of 1 is used as the main fracture, and the main fracture is divided with the wellbore as the center to obtain the first main fracture and the second main fracture. The lengths of the first main fracture and the second main fracture are calculated respectively, and the first fracturing radius and the second fracturing radius can be obtained.

[0127] Embodiment 5

[0128] This embodiment provides a fracturing effect evaluation device, including a data acquisition module, a main fracture acquisition module, a radius acquisition module, and an effect evaluation module.

[0129] The data acquisition module is used to acquire the starting point coordinates, the end point coordinates and the formation time of each fracture line segment in the fracture network obtained by the fracturing treatment.

[0130] For the description of the data acquisition module, reference may be made to the detailed description of step S110 in the aforementioned method embodiment, that is, step S110 may be executed by the data acquisition module.

[0131] The main seam acquisition module is used to obtain the main seam according to the starting point coordinates, end point coordinates and formation time of each of the crack line segments, wherein the main seam includes the crack line segment with the earliest formation time, and includes multiple crack line segments, and the starting point coordinates of any target crack line segment among the multiple crack line segments are the starting point coordinates or end point coordinates of the crack line segment connected to the target crack line segment.

[0132] For the description of the main seam obtaining module, reference may be made to the detailed description of step S120 in the aforementioned method embodiment, that is, step S120 may be executed by the main seam obtaining module.

[0133] The radius obtaining module is used to obtain the fracturing radius according to the starting point coordinates and the ending point coordinates of the multiple fracture line segments included in the main fracture.

[0134] For the description of the radius obtaining module, reference may be made to the detailed description of step S130 in the aforementioned method embodiment, that is, step S130 may be performed by the radius obtaining module.

[0135] The effect evaluation module is used to search for the fracturing effect corresponding to the fracturing radius from a corresponding relationship table between a preset radius and a fracturing effect.

[0136] For the description of the effect evaluation module, reference may be made to the detailed description of step S140 in the aforementioned method embodiment, that is, step S140 may be executed by the effect evaluation module.

[0137] In order to quickly and conveniently obtain the main seam, in this embodiment, the main seam obtaining module may include: a first marking unit, a first judging unit and a second marking unit.

[0138] The first marking unit is used to obtain a crack segment with the earliest formation time according to the crack formation time of each crack segment, and mark the crack segment with the earliest formation time.

[0139] For the description of the first marking unit, reference may be made to the detailed description of step S122a in the aforementioned method embodiment, that is, step S122a may be performed by the first marking unit.

[0140] The first determination unit is used to determine whether there is a target crack segment among the unmarked crack segments included in the plurality of crack segments, whose start point coordinates or end point coordinates are the same as the start point coordinates or end point coordinates of the marked crack segment.

[0141] For the description of the first judgment unit, reference may be made to the detailed description of step S122b in the aforementioned method embodiment, that is, step S122b may be executed by the first judgment unit.

[0142] The second marking unit is used to mark the target crack segment when there is a target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, until there is no target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, and the broken line segment obtained by connecting the starting point coordinates and end point coordinates of each target crack segment is used as the main crack.

[0143] For the description of the second marking unit, reference may be made to the detailed description of step S122c in the aforementioned method embodiment, that is, step S122c may be performed by the second marking unit.

[0144] In order to quickly and conveniently obtain the main seam, in this embodiment, the main seam obtaining module may also include: a first obtaining unit, a second obtaining unit, a second judging unit and a main seam obtaining unit.

[0145] The first acquisition unit is used to sort the crack line segments according to the formation time of each crack line segment to obtain the sorting order of the crack line segments, and obtain the crack line segment with the earliest formation time as the first crack line segment, and set the branch index of the first crack line segment to a first set value.

[0146] For the description of the first acquisition unit, reference may be made to the detailed description of step S124a in the aforementioned method embodiment, that is, step S124a may be executed by the first acquisition unit.

[0147] The second acquisition unit is used to acquire, from the sorting order of the crack line segments, a next crack line segment corresponding to a next formation time adjacent to the formation time of the first crack line segment.

[0148] For the description of the second acquisition unit, reference may be made to the detailed description of step S124b in the aforementioned method embodiment, that is, step S124b may be executed by the second acquisition unit.

[0149] The second judgment unit is used to judge whether the starting point of the next crack line segment is the starting point or the end point of the first crack line segment.

[0150] For the description of the second judgment unit, reference may be made to the detailed description of step S124c in the aforementioned method embodiment, that is, step S124c may be executed by the second judgment unit.

[0151] The main seam obtaining unit is used to, when the starting point of the next crack line segment is the starting point or end point of the first crack line segment, use the next crack line segment as a new first crack line segment and set the branch index of the first crack line segment to the first set value; or, when the starting point of the next crack line segment is not the starting point or end point of the first crack line segment, use the next crack line segment as a new first crack line segment and set the branch index of the first crack line segment to the second set value, until there is no next crack line segment adjacent to the first crack line segment in the sorting order of the crack line segments, and the broken line segment formed by connecting all the crack line segments with branch indices of the first set value is used as the main seam.

[0152] For the description of the main seam obtaining unit, reference may be made to the detailed description of step S124d and step S124e in the aforementioned method embodiment, that is, step S124d and step S124e may be executed by the main seam obtaining unit.

[0153] In order to ensure the reliability and accuracy of the obtained fracture effect, in this embodiment, the fracturing effect evaluation device further includes a parameter acquisition module for acquiring fracturing parameters during fracturing treatment;

[0154] The effect evaluation module is further used to search for the fracturing effect corresponding to the fracturing radius and the fracturing parameters from a corresponding relationship table between the preset radius, the preset parameters and the fracturing effect.

[0155] The fracturing parameters include one or more of the swept volume, the fracture height and the fracture width of each fracture line segment included in the main fracture, and the fracture complexity.

[0156] Embodiment 6

[0157] This embodiment also provides a storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a disk, an optical disk, a server, an App application store, etc., on which a computer program is stored. When the computer program is executed by a processor, the following steps in the fracturing effect evaluation method in the first embodiment can be implemented:

[0158] Obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment;

[0159] A main fracture is obtained according to the starting point coordinates, the end point coordinates and the formation time of each of the fracture line segments, wherein the main fracture includes a plurality of fracture line segments, the plurality of fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment;

[0160] Obtaining a fracturing radius according to the starting point coordinates and the ending point coordinates of a plurality of fracture line segments included in the main fracture;

[0161] The fracturing effect corresponding to the fracturing radius is searched from the correspondence table between the preset radius and the fracturing effect.

[0162] The specific implementation process of the above method steps can refer to the specific descriptions in Example 1, Example 2, Example 3 and Example 4, and this embodiment will not be repeated here.

[0163] Embodiment 7

[0164] An embodiment of the present application provides an electronic device for executing the method steps in the above method embodiment. In the embodiment of the present application, the electronic device may be, but is not limited to, a smart phone, a tablet computer, a personal digital assistant (PAD), a mobile Internet device (MID), etc.

[0165] Structurally, an electronic device may include a processor and a memory.

[0166] The processor and the memory are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these elements can be electrically connected to each other via one or more communication buses or signal lines.

[0167] The fracturing effect evaluation device includes at least one software module that can be stored in a memory in the form of software or firmware or fixed in the operating system (OS) of the electronic device. The processor is used to execute the executable module stored in the memory, for example, the software function module and computer program included in the fracturing effect evaluation device, so as to realize the fracturing effect evaluation method.

[0168] That is, the processor can execute the computer program after receiving the execution instruction. When the computer program is executed by the processor, the specific description of the fracturing effect evaluation method in Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4 is implemented, which will not be described one by one in this embodiment.

[0169] The processor is used to execute all or part of the steps of the fracturing effect evaluation method in Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4. The memory is used to store various types of data, which may include, for example, instructions of any application or method in the electronic device, and data related to the application.

[0170] The processor can be an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a microcontroller, a microprocessor or other electronic components, and is used to execute all or part of the steps in the methods in the above-mentioned embodiments one, two, three and four.

[0171] The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0172] In summary, the present invention provides a method, device, storage medium and electronic device for evaluating the effect of fracturing, the method comprising: obtaining the starting coordinates, end coordinates and formation time of each fracture line segment in the fracture network obtained by fracturing treatment, obtaining the main fracture according to the starting coordinates, end coordinates and formation time of each fracture line segment, wherein the main fracture includes multiple fracture lines, the multiple fracture lines include the fracture line segment with the earliest formation time, and the starting coordinates of any target fracture line segment among the multiple fracture lines are the starting coordinates or end coordinates of the fracture line segment connected to the target fracture line segment, obtaining the fracturing radius according to the starting coordinates and end coordinates of the multiple fracture lines included in the main fracture, and searching the fracturing effect corresponding to the fracturing radius from the correspondence table between the preset radius and the fracturing effect. By adopting the above method, the reliability of the obtained fracturing radius can be effectively ensured, and then the reliability of the obtained fracturing effect can be effectively improved, so as to facilitate the development and production of oil and gas fields according to the fracturing effect.

[0173] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may also be implemented in other ways.

[0174] The device embodiments described above are merely illustrative, for example, the flowcharts and block diagrams in the accompanying drawings show possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram may represent a module, a program segment, or a portion of a code, which includes one or more executable instructions for implementing a specified logical function.

[0175] It should also be noted that in some alternative implementations, the functions marked in the blocks may also occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flow chart, and the combination of blocks in the block diagram and / or flow chart, may be implemented with a dedicated hardware-based system that performs the specified functions or actions, or may be implemented with a combination of dedicated hardware and computer instructions.

[0176] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0177] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0178] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0179] It should be noted that, in this article, relational terms such as "first", "second" and "third" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0180] Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0181] It should also be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for evaluating a fracturing effect, characterized in that: The method comprises: Obtaining the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by the fracturing treatment; A main fracture is obtained according to the starting point coordinates, the end point coordinates and the formation time of each of the fracture line segments, wherein the main fracture includes a plurality of fracture line segments, the plurality of fracture line segments include a fracture line segment with the earliest formation time, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment; Dividing the main seam into a first main seam and a second main seam according to the starting point of the earliest crack line segment formed in the main seam; Obtaining the length of each fracture line segment included in the first main fracture according to the starting point coordinates and the end point coordinates of each fracture line segment included in the first main fracture, and accumulating the lengths of each fracture line segment included in the first main fracture to obtain a first fracturing radius corresponding to the first main fracture; Obtaining the length of each fracture line segment included in the second main fracture according to the starting point coordinates and the end point coordinates of each fracture line segment included in the second main fracture, and accumulating the lengths of each fracture line segment included in the second main fracture to obtain a second fracturing radius corresponding to the second main fracture; The fracturing effect corresponding to the fracturing radius is searched from the correspondence table between the preset radius and the fracturing effect.

2. The method for evaluating the fracturing effect according to claim 1, characterized in that: The main fracture is obtained according to the starting point coordinates, end point coordinates and formation time of each crack line segment, including: Step S122a: obtaining the crack line segment with the earliest formation time according to the crack formation time of each crack line segment, and marking the crack line segment with the earliest formation time; Step S122b: determining whether there is a target crack segment among the unmarked crack segments included in the plurality of crack segments, whose starting point coordinates or ending point coordinates are the same as the starting point coordinates or ending point coordinates of the marked crack segment; Step S122c: When there is a target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, mark the target crack segment and return to step S122b, until there is no target crack segment whose starting point coordinates or end point coordinates are the same as the starting point coordinates or end point coordinates of the marked crack segment among the unmarked crack segments included in the multiple crack segments, and the broken line segment obtained by connecting the starting point coordinates and end point coordinates of each target crack segment is used as the main crack.

3. The method for evaluating the fracturing effect according to claim 1, characterized in that: The main fracture is obtained according to the starting point coordinates, end point coordinates and formation time of each crack line segment, including: Step S124a: sorting the crack line segments according to the formation time of each crack line segment to obtain the sorting order of the crack line segments, and obtaining the crack line segment with the earliest formation time as the first crack line segment, and setting the branch index of the first crack line segment to a first set value; Step S124b: judging whether there is a next crack line segment whose formation time is adjacent to that of the first crack line segment according to the sorting order; Step S124c: when there is a next crack line segment whose formation time is adjacent to the first crack line segment, obtaining a next crack line segment corresponding to the next formation time adjacent to the formation time of the first crack line segment from the sorting order of the crack line segments; Step S124d: determining whether the starting point of the next crack line segment is the starting point or the end point of the first crack line segment; Step S124e: When the starting point of the next crack line segment is the starting point or end point of the first crack line segment, the next crack line segment is used as a new first crack line segment, and the branch index of the first crack line segment is set to the first set value, and the process returns to step S124b; or when the starting point of the next crack line segment is not the starting point or end point of the first crack line segment, the next crack line segment is used as a new first crack line segment, and the branch index of the first crack line segment is set to the second set value, and the process returns to step S124b, until there is no next crack line segment adjacent to the first crack line segment in the sorting order of the crack line segments, and the broken line segment formed by connecting all the crack line segments with branch indices of the first set value is used as the main crack.

4. The method for evaluating the fracturing effect according to claim 1, characterized in that: The method further comprises: Acquire fracturing parameters during fracturing treatment; Searching for the fracturing effect corresponding to the fracturing radius from the correspondence table between the preset radius and the fracturing effect includes: The fracturing effect corresponding to the fracturing radius and the fracturing parameters is searched from the correspondence table of the preset radius, preset parameters and the fracturing effect.

5. The method for evaluating the fracturing effect according to claim 4, characterized in that: The fracturing parameters include one or more of the swept volume, the lateral swept length, width and longitudinal swept height represented by the main fracture, and fracture complexity.

6. The method for evaluating the fracturing effect according to claim 1, characterized in that: Searching for a fracturing effect corresponding to the fracturing radius from a correspondence table between a preset radius and a fracturing effect includes: The fracturing effects corresponding to the first fracturing radius and the second fracturing radius are searched from a table of correspondence between preset radii and fracturing effects.

7. A fracturing effect evaluation device, characterized in that: The device comprises: A data acquisition module, used to obtain the starting point coordinates, end point coordinates and formation time of each fracture line segment in the fracture network obtained by fracturing treatment; A main fracture acquisition module, configured to obtain a main fracture according to the starting point coordinates, the end point coordinates and the formation time of each of the fracture line segments, wherein the main fracture includes a fracture line segment with the earliest formation time, and includes a plurality of fracture line segments, and the starting point coordinates of any target fracture line segment among the plurality of fracture line segments are the starting point coordinates or the end point coordinates of the fracture line segment connected to the target fracture line segment; A radius obtaining module, for dividing the main seam into a first main seam and a second main seam according to the starting point of the earliest fracture line segment formed in the main seam; obtaining the length of each fracture line segment included in the first main seam according to the starting point coordinates and the end point coordinates of each fracture line segment included in the first main seam, and accumulating the lengths of each fracture line segment included in the first main seam to obtain a first fracturing radius corresponding to the first main seam; obtaining the length of each fracture line segment included in the second main seam according to the starting point coordinates and the end point coordinates of each fracture line segment included in the second main seam, and accumulating the lengths of each fracture line segment included in the second main seam to obtain a second fracturing radius corresponding to the second main seam; The effect evaluation module is used to search for the fracturing effect corresponding to the fracturing radius from the corresponding relationship table between the preset radius and the fracturing effect.

8. A storage medium storing a computer program, characterized in that: When the computer program is executed by one or more processors, the method for evaluating the fracturing effect as described in any one of claims 1 to 6 is implemented.

9. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the method according to any one of claims 1 to 6 is executed.

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