Method and device for determining fracture zone range of ultra-deep strike-slip fracture control

Abstract

The invention discloses a method and a device for determining a fracture zone range under ultra-deep strike-slip fracture control. The method comprises the steps that according to logging data, the top vertical depth and the bottom vertical depth of an oil and gas reservoir under the control of ultra-deep strike-slip fracture are determined; according to the comprehensive logging data, the top closing distance and the bottom closing distance of the oil and gas reservoir are determined; determining the vertical thickness of the fracture zone according to the top vertical depth and the bottom vertical depth; determining the horizontal width of the crushed zone according to the top closing distance and the bottom closing distance; and according to the vertical thickness of the fracture zone and the horizontal width of the fracture zone, determining the range of the fracture zone controlled by the ultra-deep strike-slip fracture. By the adoption of the technical scheme, the range of the fracture zone can be determined according to the accurate vertical thickness of the fracture zone and the horizontal width of the fracture zone, so that the calculation error of the system is reduced, the accuracy of the calculation result is improved, and the determined range of the fracture zone better conforms to the real geological condition.

Description

Technical Field

[0001] The invention relates to the technical field of oil reservoir exploration, and in particular to a method and a device for determining a fracture zone range controlled by an ultra-deep strike-slip fault. Background Art

[0002] With the acceleration of the pace of exploration and development, the degree of well control along the strike-slip fault zone is relatively high. Affected by the strike-slip fault, the determination of the scope of the fractured zone, which is the main reservoir space, is crucial for the optimization of potential zones for subsequent exploration and development.

[0003] The description method of the fracture zone or effective reservoir range controlled by ultra-deep strike-slip faults mainly relies on seismic data. However, due to the influence of surface desert cover and overlying strata of the target layer, the quality of seismic data is difficult to meet the requirements of fine reservoir characterization, especially in the evaluation and development stage, the requirements for the fineness of reservoir characterization are higher, and it is difficult to meet production needs only by relying on seismic inversion data. Therefore, there is an urgent need for a method that can accurately obtain the range of the fracture zone. Summary of the invention

[0004] The present invention provides a method and device for determining the range of a fracture zone controlled by an ultra-deep strike-slip fault, so as to solve the problem that it is difficult to meet the requirement of fine characterization of the reservoir when the range of the fracture zone is determined only by using seismic data.

[0005] According to one aspect of the present invention, a method for determining the range of a fracture zone controlled by an ultra-deep strike-slip fault is provided, the method comprising:

[0006] Determine the top vertical depth and bottom vertical depth of the oil and gas layer controlled by ultra-deep strike-slip faults based on well logging data;

[0007] Determine the top closure distance and bottom closure distance of the oil and gas layer based on the comprehensive logging data;

[0008] Determine the vertical thickness of the broken zone based on the vertical depth of the top and the vertical depth of the bottom;

[0009] Determine the horizontal width of the broken zone based on the top closure distance and the bottom closure distance;

[0010] According to the vertical thickness and horizontal width of the broken zone, the scope of the broken zone controlled by the ultra-deep strike-slip fault is determined.

[0011] According to another aspect of the present invention, a device for determining a range of a fracture zone controlled by an ultra-deep strike-slip fault is provided, the device comprising:

[0012] A vertical depth acquisition module is used to determine the top vertical depth and bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault according to the well logging data;

[0013] A closure distance determination module is used to determine the top closure distance and the bottom closure distance of the oil and gas layer based on the comprehensive logging data;

[0014] A module for determining the thickness of a broken zone is used to determine the vertical thickness of the broken zone according to the vertical depth of the top and the vertical depth of the bottom;

[0015] A module for determining the width of a broken zone is used to determine the horizontal width of the broken zone according to the top closing distance and the bottom closing distance;

[0016] The crushing range determination module is used to determine the crushing zone range controlled by the ultra-deep strike-slip fault according to the vertical thickness and horizontal width of the crushing zone.

[0017] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0018] at least one processor; and

[0019] a memory communicatively connected to at least one processor; wherein,

[0020] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the method for determining the range of a crushing zone controlled by an ultra-deep strike-slip fault according to any embodiment of the present invention.

[0021] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the range of a broken zone controlled by an ultra-deep strike-slip fault according to any embodiment of the present invention when executed.

[0022] According to the technical solution of the embodiment of the present invention, the top vertical depth and bottom vertical depth of the oil and gas layer under the control of the ultra-deep strike-slip fault are determined according to the logging data, so that the determined top vertical depth and bottom vertical depth are more consistent with the actual geological conditions, thereby reducing the system error. By determining the top closure distance and bottom closure distance of the oil and gas layer according to the comprehensive logging data, when determining the top closure distance and the bottom closure distance, it is possible to determine according to the actual geological conditions, thereby improving the accuracy of the determination result. By determining the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth, and determining the horizontal width of the broken zone according to the top closure distance and the bottom closure distance, the horizontal width of the broken zone and the vertical thickness of the broken zone can be determined more accurately. By determining the range of the broken zone controlled by the ultra-deep strike-slip fault according to the vertical thickness of the broken zone and the horizontal width of the broken zone, when determining the range of the broken zone controlled by the ultra-deep strike-slip fault, the range of the broken zone can be determined according to the more accurate vertical thickness of the broken zone and the horizontal width of the broken zone, thereby reducing the calculation error of the system, improving the accuracy of the calculation result, and making the determined range of the broken zone more consistent with the actual geological conditions.

[0023] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a flow chart of a method for determining a range of a fracture zone controlled by an ultra-deep strike-slip fault provided in accordance with the first embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of well logging data applicable to an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of a vertical projection diagram of a wellbore applicable to an embodiment of the present invention;

[0028] Figure 4 A flowchart of another method for determining the range of a fracture zone controlled by an ultra-deep strike-slip fault is provided according to the second embodiment of the present invention;

[0029] Figure 5It is a schematic diagram of a process for determining a vertical thickness of a target fracture zone and a horizontal width of a target fracture zone in the case where a blowdown loss occurs outside the range from the top to the bottom of an oil and gas layer according to an embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of determining the first horizontal width when the range of the top and bottom of the oil layer applicable to the embodiment of the present invention is smaller than the distance between the AB target points;

[0031] Figure 7 This is a schematic structural diagram of a device for determining a range of a broken zone controlled by an ultra-deep strike-slip fault according to a third embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of an electronic device for implementing the method for determining the range of a fracture zone for ultra-deep strike-slip fault control according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Embodiment 1

[0036] Figure 1A flowchart of a method for determining the range of a broken zone controlled by an ultra-deep strike-slip fault is provided for the first embodiment of the present invention. This embodiment can be applied to more accurately determine the range of a broken zone. The method can be executed by a device for determining the range of a broken zone controlled by an ultra-deep strike-slip fault. The device for determining the range of a broken zone controlled by an ultra-deep strike-slip fault can be implemented in the form of hardware and / or software. The device for determining the range of a broken zone controlled by an ultra-deep strike-slip fault can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes:

[0037] S110. Determine the top vertical depth and the bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault according to the well logging data.

[0038] Figure 2 Schematic diagram of a well logging data applicable to an embodiment of the present invention. Figure 2 Well logging data refers to the top and bottom depths of the oil and gas layers in the actual wells, which can be interpreted by referring to the reservoir and oil and gas layer interpretation templates of the same type of areas through gamma, deep and shallow resistivity, sonic waves and natural potential tests during the drilling process. The top and bottom depths can be specific values ​​used to describe the top vertical depth and bottom vertical depth of the oil and gas layer.

[0039] After the well has entered the oil and gas layer, the well can be logged to obtain the logging data of the well, and based on the specific values ​​in the logging data, the specific values ​​of the top vertical depth and the bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault can be determined.

[0040] By determining the top vertical depth and bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault based on the logging data, the determined top vertical depth and bottom vertical depth are more consistent with the actual geological conditions, thereby reducing the system error.

[0041] S120. Determine the top closure distance and the bottom closure distance of the oil and gas layer based on the comprehensive logging data.

[0042] Comprehensive logging data can be the logging data reflecting the formation and oil and gas display data during the drilling process, mainly including: gas logging display, rock cuttings, carbonate rock content and oil layer display, etc. Closing distance can be the horizontal displacement of the well when the well is completed. The top closing distance can be the horizontal displacement of the top of the oil and gas layer when the well is completed. The bottom closing distance can be the horizontal displacement of the bottom of the oil and gas layer when the well is completed.

[0043] Figure 3 Schematic diagram of a vertical projection diagram of a wellbore applicable to an embodiment of the present invention. Figure 3After the well has entered the oil and gas layer, the well can be monitored to obtain comprehensive logging data, and based on the vertical projection map of the wellbore, the vertical depth of the top and bottom of the oil and gas layer encountered by the well can be determined, as well as the depth of the top and bottom of the oil and gas layer in the drilling trajectory measured by the drilling trajectory of the well, thereby calculating the top closure distance and bottom closure distance of the oil and gas layer.

[0044] By determining the top closure distance and the bottom closure distance of the oil and gas layer based on the comprehensive logging data, the top closure distance and the bottom closure distance can be determined based on the actual geological conditions, thereby improving the accuracy of the determination results.

[0045] S130. Determine the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth.

[0046] The broken zone may be an area generated by a fault and containing fault breccia, cataclastic rock, fault mud, etc. The vertical thickness of the broken zone may be the thickness of the broken zone in the vertical direction.

[0047] After determining the top vertical depth and the bottom vertical depth, the vertical thickness of the broken zone can be calculated based on the specific data of the top vertical depth and the bottom vertical depth to determine the vertical thickness of the broken zone.

[0048] For example, if the top vertical depth is 10m and the bottom vertical depth is 20m, the vertical depth of the top is subtracted from the vertical depth of the bottom, that is, 20m-10m, to obtain the vertical thickness of the broken zone as 10m.

[0049] S140. Determine the horizontal width of the broken zone according to the top closing distance and the bottom closing distance.

[0050] After determining the top closing distance and the bottom closing distance, the horizontal width of the broken zone can be calculated based on the specific data of the top closing distance and the bottom closing distance to determine the horizontal width of the broken zone.

[0051] For example, if the top closing distance is 10m and the bottom closing distance is 20m, then the horizontal width of the broken zone is 10m, which is obtained by subtracting the top closing distance from the bottom closing distance, i.e. 20m-10m.

[0052] By determining the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth, and determining the horizontal width of the broken zone according to the top closing distance and the bottom closing distance, the determined horizontal width of the broken zone and the vertical thickness of the broken zone can be more accurate.

[0053] S150. Determine the range of the broken zone controlled by the ultra-deep strike-slip fault based on the vertical thickness and horizontal width of the broken zone.

[0054] After determining the vertical thickness and horizontal width of the broken zone, the thickness and width of the broken zone at the drilling location can be determined. At this time, the range of the broken zone controlled by the ultra-deep strike-slip fault can be determined.

[0055] By determining the range of the broken zone controlled by the ultra-deep strike-slip fault according to the vertical thickness and horizontal width of the broken zone, the range of the broken zone can be determined based on the more accurate vertical thickness and horizontal width of the broken zone, thereby reducing the calculation error of the system and improving the accuracy of the calculation results, so that the determined broken zone range is more in line with the actual geological conditions.

[0056] According to the technical solution of the embodiment of the present invention, the top vertical depth and bottom vertical depth of the oil and gas layer under the control of the ultra-deep strike-slip fault are determined according to the logging data, so that the determined top vertical depth and bottom vertical depth are more consistent with the actual geological conditions, thereby reducing the system error. By determining the top closure distance and bottom closure distance of the oil and gas layer according to the comprehensive logging data, when determining the top closure distance and the bottom closure distance, it is possible to determine according to the actual geological conditions, thereby improving the accuracy of the determination result. By determining the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth, and determining the horizontal width of the broken zone according to the top closure distance and the bottom closure distance, the horizontal width of the broken zone and the vertical thickness of the broken zone can be determined more accurately. By determining the range of the broken zone controlled by the ultra-deep strike-slip fault according to the vertical thickness of the broken zone and the horizontal width of the broken zone, when determining the range of the broken zone controlled by the ultra-deep strike-slip fault, the range of the broken zone can be determined according to the more accurate vertical thickness of the broken zone and the horizontal width of the broken zone, thereby reducing the calculation error of the system, improving the accuracy of the calculation result, and making the determined range of the broken zone more consistent with the actual geological conditions.

[0057] Embodiment 2

[0058] Figure 4 The present invention provides another flow chart of a method for determining the range of a broken zone controlled by an ultra-deep strike-slip fault. Based on the above embodiment, this embodiment further optimizes the process after determining the horizontal width of the broken zone according to the top closure distance and the bottom closure distance in the above embodiment. This embodiment can be combined with various optional solutions in one or more of the above embodiments. Figure 4 As shown, the dining control method of the smart restaurant of this embodiment may include the following steps:

[0059] S2010. Determine the top vertical depth and bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault based on the logging data.

[0060] S2020. Determine the top closure distance and bottom closure distance of the oil and gas layer based on the comprehensive logging data.

[0061] S2030. Determine the vertical thickness of the broken zone based on the top vertical depth and the bottom vertical depth.

[0062] S2040. Determine the horizontal width of the broken zone based on the top closing distance and the bottom closing distance.

[0063] S2050. Determine the first vertical thickness of the Class I reservoir and the Class II reservoir in the oil and gas layer based on the completion data.

[0064] Completion data can be the data obtained after drilling is completed, which is collated and analyzed to comprehensively judge the downhole geology and oil, gas and water layer conditions.

[0065] The first vertical thickness may be a vertical depth from the top to the bottom of the oil and gas layer determined by the vertical thickness of the Class I reservoir and the Class II reservoir.

[0066] After the drilling is completed, the depths of the top and bottom of the Class I reservoir and the Class II reservoir along the well trajectory are determined by monitoring the completion data.

[0067] At this time, the thickness of the Class I reservoir in the vertical direction can be determined by monitoring the top and bottom depths of the Class I reservoir along the drilling trajectory and the drilling trajectory.

[0068] Similarly, the thickness of the Class II reservoir in the vertical direction can be determined, and the thicknesses of the Class I reservoir and the Class II reservoir in the vertical direction are calculated to obtain the first vertical thickness.

[0069] By determining the first vertical thickness of Class I reservoirs and Class II reservoirs in the oil and gas layer based on the completion data, it is possible to avoid the inability to determine the vertical thickness of the broken zone through the top vertical depth and the bottom vertical depth due to lack of data during the monitoring process. When determining the vertical thickness of the broken zone, the thickness of the broken zone in the vertical direction can be determined.

[0070] S2060. Determine the second vertical thickness of the fracture zone controlled by the ultra-deep strike-slip fault based on the comprehensive logging data.

[0071] The second vertical thickness may be the thickness of the fracture zone in the horizontal direction determined by comprehensive logging data.

[0072] After obtaining the comprehensive logging data, the vertical depth of the top and bottom of the oil and gas layer can be calculated based on the comprehensive logging data, so as to determine the second vertical thickness of the broken zone under the control of the ultra-deep strike-slip fault.

[0073] In an optional solution, after determining the second vertical thickness of the fracture zone controlled by the ultra-deep strike-slip fault according to the comprehensive logging data, the method further includes steps A1-A2:

[0074] Step A1: Determine whether there is a drilling empty section and a drilling loss section in the oil and gas layer according to the monitoring while drilling data.

[0075] Step A2: if it exists, determine the first top depth and the first bottom depth of the drilling emptying section, and the second top depth and the second bottom depth of the drilling lost circulation section according to the monitoring while drilling data.

[0076] Accordingly, the range of the crushing zone controlled by the ultra-deep strike-slip fault is determined according to the vertical thickness and horizontal width of the target crushing zone, including:

[0077] The range of the crushing zone controlled by the ultra-deep strike-slip fault is determined according to the first top depth, the first bottom depth, the second top depth, the second bottom depth, the vertical thickness of the target crushing zone and the horizontal width of the target crushing zone.

[0078] The drilling empty section can be the empty section encountered during the drilling process. The drilling loss section can be the loss section encountered during the drilling process.

[0079] During the drilling process, there is a possibility that the drill bit may enter a blowdown section or a leakage section. In this case, it is necessary to determine whether a blowdown section or a leakage section occurs during the drilling process.

[0080] If the presence of a drilling vent section and a drilling loss section is monitored, it is necessary to determine the first top depth and the first bottom depth of the drilling vent section, as well as the second top depth and the second bottom depth of the drilling loss section based on the downhole monitoring data, so as to determine whether the drilling vent section and the drilling loss section will affect the final determined range of the fracture zone.

[0081] Therefore, it is necessary to determine the range of the crushing zone controlled by the ultra-deep strike-slip fault based on the first top depth, the first bottom depth, the second top depth, the second bottom depth, the vertical thickness of the target crushing zone and the horizontal width of the target crushing zone.

[0082] Figure 5 A schematic diagram of the process of determining the vertical thickness of the target fracture zone and the horizontal width of the target fracture zone in the case of a loss of gas from the top to the bottom of the oil and gas layer, to which the embodiment of the present invention is applicable. Figure 5 If venting occurs outside the range from the top to the bottom of the oil and gas layer, the vertical thickness of the target broken zone will be determined by re-determining the thickness of the broken zone in the vertical direction through the first top depth of the venting point and the vertical thickness of the target broken zone.

[0083] By the same token, it is necessary to redefine the horizontal width of the crushing zone and determine the range of the crushing zone controlled by the ultra-deep strike-slip fault based on the redetermined thickness and width.

[0084] Similarly, if leakage occurs outside the range from the top to the bottom of the oil and gas layer, a method for determining the range of the fracture zone controlled by the ultra-deep strike-slip fault can be obtained.

[0085] S2070. Determine the first horizontal width of the broken zone according to the target coordinates.

[0086] The target point coordinates may be the coordinates of the drilling well when drilling into the target layer. The first horizontal width may be the width of the fracture zone in the horizontal direction determined based on the target point. The target layer may be the rock layer or position that the driller expects the well to drill into.

[0087] Figure 6 This is a schematic diagram of determining the first horizontal width when the top and bottom range of the oil layer applicable to the embodiment of the present invention is smaller than the AB target point distance. Figure 6 In addition to the above method, the width of the fracture zone in the horizontal direction can also be determined by using the target coordinates. In the figure, target point A can be the target point for drilling into the oil and gas layer, and target point B can be the target point for drilling in the horizontal direction.

[0088] At this time, it can be seen from the figure that the top and bottom range of the oil layer is smaller than the AB target point distance. At this time, the first horizontal width of the broken zone will be determined by the target point coordinates of the AB target point.

[0089] In an optional solution, the first horizontal width of the broken zone is determined according to the target coordinates, which may include B1-B3:

[0090] Step B1: Determine the wellhead coordinates of the target well according to the completion data.

[0091] Step B2: Determine the target coordinates of the target drilling according to the completion data.

[0092] Step B3: Determine the first horizontal width of the broken zone according to the drilling wellhead coordinates and the target point coordinates.

[0093] The target wellbore may be a wellbore used to determine the range of the fracture zone. The wellbore wellhead coordinates may be the location of the wellbore wellhead selected when the target wellbore is started to be drilled.

[0094] After the completion data is obtained, the completion data can be used to determine the target point coordinates of the target drilling, including but not limited to target point A and target point B, and determine the drilling wellhead coordinates of the target drilling.

[0095] In an optional solution, the calculation expression of the first horizontal width is:

[0096] When the drilling trajectory is a deviated well trajectory, the first horizontal width is:

[0097] First horizontal width = L w0 -L A0

[0098] When the drilling well trajectory is a horizontal well trajectory, the first horizontal width is:

[0099] First horizontal width = L B0 -L A0

[0100] Where: L A0 It indicates the horizontal distance from the drilling target point A to the wellhead; L B0 It indicates the horizontal distance between the drilling target point B and the wellhead; L W0 It indicates the horizontal distance from the bottom of the well to the wellhead.

[0101] At this time, the first horizontal width of the broken zone can be determined by calculation using the formula.

[0102] The determination method is:

[0103]

[0104]

[0105]

[0106] When the drilling trajectory is a deviated well trajectory, the first horizontal width is:

[0107] First horizontal width = L w0 -L A0

[0108] When the drilling well trajectory is a horizontal well trajectory, the first horizontal width is:

[0109] First horizontal width = L B0 -L A0

[0110] Where: L A0 It indicates the horizontal distance from the drilling target point A to the wellhead; L B0 It indicates the horizontal distance between the drilling target point B and the wellhead; L W0 Indicates the horizontal distance from the bottom of the well to the wellhead when drilling

[0111] x A ,y A Indicates the horizontal and vertical coordinates of target point A; x B ,y B Indicates the horizontal and vertical coordinates of target point B; x w ,yw Indicates the horizontal and vertical coordinates of the bottom of the well.

[0112] S2080. Determine the target vertical thickness of the broken zone according to the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone.

[0113] The target fracture zone vertical thickness may be the vertical thickness that best conforms to the actual geological conditions among the determined first vertical thickness, the second vertical thickness, and the fracture zone vertical thickness.

[0114] After obtaining the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone, since the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone are all determined vertical thicknesses of the broken zone, it is necessary to select the vertical thickness of the broken zone that is more in line with the actual situation.

[0115] Therefore, it is necessary to compare the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone to determine the most accurate vertical thickness as the target vertical thickness of the broken zone.

[0116] By determining the target vertical thickness of the broken zone based on the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone, it is possible to avoid using other methods to determine the vertical thickness of the broken zone when a certain method cannot calculate the vertical thickness of the broken zone.

[0117] In an optional solution, determining the target vertical thickness of the broken zone according to the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone may include steps C1-C3:

[0118] Step C1: If the vertical thickness of the broken zone exists, the vertical thickness of the broken zone is determined to be the target vertical thickness of the broken zone.

[0119] Step C2: if the vertical thickness of the broken zone does not exist and the first vertical thickness exists, determine the first vertical thickness as the target vertical thickness of the broken zone.

[0120] Step C3: if the vertical thickness of the broken zone is not determined and the first vertical thickness is not determined, then determine the second vertical thickness as the target vertical thickness of the broken zone.

[0121] Since the first vertical thickness, the second vertical thickness and the broken zone vertical thickness are determined in different ways, resulting in different data accuracy, it is necessary to preferentially select the vertical thickness with the highest accuracy as the target broken zone vertical thickness.

[0122] Therefore, when the vertical thickness of the broken zone exists, the vertical thickness of the broken zone will be determined as the target vertical thickness of the broken zone. However, when determining the vertical thickness, it may be possible that the vertical thickness of the broken zone cannot be calculated. In this case, if the vertical thickness of the broken zone does not exist and the first vertical thickness exists, the first vertical thickness will be determined as the target vertical thickness of the broken zone.

[0123] Similarly, if the vertical thickness of the broken zone cannot be calculated and the first vertical thickness cannot be calculated, the second vertical thickness is determined as the target vertical thickness of the broken zone.

[0124] S2090. Determine a target horizontal width of the crushing zone according to the first horizontal width and the horizontal width of the crushing zone.

[0125] The target horizontal width of the broken zone may be the width of the broken zone that is more consistent with the horizontal width of the broken zone under actual geological conditions, between the first horizontal width and the broken zone horizontal width.

[0126] Since the methods for determining the first horizontal width and the horizontal width of the broken zone are different, the situations in which the determined first horizontal width and the horizontal width of the broken zone conform to the horizontal width of the broken zone under actual geological conditions are also different. Therefore, it is necessary to select the first horizontal width and the horizontal width of the broken zone to determine the horizontal width of the broken zone that is more consistent with the actual geological conditions as the target horizontal width of the broken zone.

[0127] By determining the target crushing zone horizontal width according to the first horizontal width and the crushing zone horizontal width, when determining the target crushing zone horizontal width, the determination result with the highest accuracy can be selected as the target crushing zone horizontal width.

[0128] In an optional solution, determining the target horizontal width of the crushing zone according to the first horizontal width and the horizontal width of the crushing zone may include steps D1-D2:

[0129] Step D1: If the horizontal width of the broken zone exists, the horizontal width of the broken zone is determined to be the target horizontal width of the broken zone.

[0130] Step D2: Otherwise, the first horizontal width is determined as the target broken zone horizontal width.

[0131] Due to the different methods for determining the first horizontal width and the horizontal width of the broken zone, the accuracies of the determined first horizontal width and the horizontal width of the broken zone in accordance with the actual geological conditions are different. Therefore, it is necessary to select the first horizontal width and the horizontal width of the broken zone, and take the result of the horizontal width of the broken zone that is more in line with the actual geological conditions as the target horizontal width of the broken zone.

[0132] Therefore, when the horizontal width of the broken zone exists, the horizontal width of the broken zone will be determined as the target horizontal width of the broken zone. When the horizontal width of the broken zone does not exist, the first horizontal width will be determined as the target horizontal width of the broken zone.

[0133] S2100. Determine the range of the crushing zone controlled by the ultra-deep strike-slip fault based on the vertical thickness and horizontal width of the target crushing zone.

[0134] After determining the vertical thickness and horizontal width of the target crushing zone, the length and width distribution of the crushing zone controlled by the ultra-deep strike-slip fault can be determined, and then the range of the crushing zone controlled by the ultra-deep strike-slip fault can be determined.

[0135] According to the technical solution of the embodiment of the present invention, by determining the target vertical thickness of the broken zone according to the first vertical thickness, the second vertical thickness and the vertical thickness of the broken zone, when determining the vertical thickness of the broken zone, it is possible to avoid determining the vertical thickness of the broken zone by other methods when a certain method cannot calculate the vertical thickness of the broken zone. By determining the target horizontal width of the broken zone according to the first horizontal width and the horizontal width of the broken zone, when determining the target horizontal width of the broken zone, the determination result with the highest accuracy can be selected as the target horizontal width of the broken zone.

[0136] Embodiment 3

[0137] Figure 7 The present invention provides a block diagram of a device for determining a range of a broken zone controlled by an ultra-deep strike-slip fault. This embodiment is applicable to the situation where the range of a broken zone is determined more accurately. The device for determining a range of a broken zone controlled by an ultra-deep strike-slip fault can be implemented in the form of hardware and / or software. The device for determining a range of a broken zone controlled by an ultra-deep strike-slip fault can be configured in an electronic device with data processing capabilities. Figure 7 As shown, the device for determining the range of a broken zone controlled by an ultra-deep strike-slip fault in this embodiment may include: a vertical depth acquisition module 310, a closure distance determination module 320, a broken zone thickness determination module 330, a broken zone width determination module 340, and a broken range determination module 350. Among them:

[0138] A vertical depth acquisition module 310 is used to determine the top vertical depth and the bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault according to the well logging data;

[0139] The closure distance determination module 320 is used to determine the top closure distance and the bottom closure distance of the oil and gas layer according to the comprehensive logging data;

[0140] A broken zone thickness determination module 330 is used to determine the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth;

[0141] A broken zone width determination module 340 is used to determine the horizontal width of the broken zone according to the top closing distance and the bottom closing distance;

[0142] The crushing range determination module 350 is used to determine the crushing zone range controlled by the ultra-deep strike-slip fault according to the vertical thickness of the crushing zone and the horizontal width of the crushing zone.

[0143] Based on the above embodiment, optionally, after the fragmentation bandwidth determination module 340, the device further includes:

[0144] A first thickness determination module is used to determine the first vertical thickness of the Class I reservoir and the Class II reservoir in the oil and gas layer according to the completion data;

[0145] A second thickness determination module is used to determine the second vertical thickness of the fracture zone under the control of the ultra-deep strike-slip fault according to the comprehensive logging data;

[0146] A first width determination module, used to determine a first horizontal width of the broken zone according to the target point coordinates;

[0147] Accordingly, the crushing range determination module 350 includes:

[0148] A vertical thickness determination unit, used for determining the vertical thickness of the target broken zone according to the first vertical thickness, the second vertical thickness and the broken zone vertical thickness;

[0149] A target width determination unit, used for determining a target crushing zone horizontal width according to the first horizontal width and the crushing zone horizontal width;

[0150] The crushing zone determination unit is used to determine the crushing zone range controlled by the ultra-deep strike-slip fault according to the vertical thickness of the target crushing zone and the horizontal width of the target crushing zone.

[0151] Based on the above embodiment, optionally, the target width determination unit includes:

[0152] A first target determination subunit is used for determining the horizontal width of the broken zone as a target horizontal width of the broken zone if the horizontal width of the broken zone exists;

[0153] The second target determination subunit is used to determine the first horizontal width as the target crushing zone horizontal width otherwise.

[0154] Based on the above embodiment, optionally, the vertical thickness determination unit includes:

[0155] A broken thickness determination subunit is used to determine the broken zone vertical thickness as the target broken zone vertical thickness if the broken zone vertical thickness exists;

[0156] The first thickness selection subunit is used to determine the first vertical thickness as the target broken zone vertical thickness if the broken zone vertical thickness does not exist and the first vertical thickness exists;

[0157] The second thickness selection subunit is used to determine the second vertical thickness as the target vertical thickness of the broken zone if the vertical thickness of the broken zone is not determined and the first vertical thickness is not determined.

[0158] Based on the above embodiment, optionally, after the second thickness determination module, the device further includes:

[0159] A lost section determination module is used to determine whether there is a drilling empty section and a drilling lost section in the oil and gas layer according to the monitoring data while drilling;

[0160] A top and bottom depth determination module, for determining a first top depth and a first bottom depth of a well blow-off section, and a second top depth and a second bottom depth of a well lost circulation section, if any, based on monitoring while drilling data;

[0161] Accordingly, the crushing area determination unit includes:

[0162] The broken area acquisition subunit is used to determine the broken zone range controlled by the ultra-deep strike-slip fault according to the first top depth, the first bottom depth, the second top depth, the second bottom depth, the vertical thickness of the target broken zone and the horizontal width of the target broken zone.

[0163] Based on the above embodiment, optionally, the first width determination module includes:

[0164] A wellhead coordinate determination unit, used to determine the wellhead coordinates of the target well according to the completion data;

[0165] A target point coordinate determination unit, used to determine the target point coordinates of the target drilling according to the completion data;

[0166] The first horizontal width determination unit is used to determine the first horizontal width of the broken zone according to the drilling wellhead coordinates and the target point coordinates.

[0167] Based on the above embodiment, optionally, the calculation expression of the first horizontal width is:

[0168] When the drilling trajectory is a deviated well trajectory, the first horizontal width is:

[0169] First horizontal width = L w0 -L A0

[0170] When the drilling trajectory is a horizontal well trajectory:

[0171] First horizontal width = L B0 -L A0

[0172] Where: L A0 It indicates the horizontal distance from the drilling target point A to the wellhead; L B0 It indicates the horizontal distance between the drilling target point B and the wellhead; L W0 It indicates the horizontal distance from the bottom of the well to the wellhead.

[0173] The device for determining the range of a crushing zone controlled by an ultra-deep strike-slip fault provided in an embodiment of the present invention can execute the method for determining the range of a crushing zone controlled by an ultra-deep strike-slip fault provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0174] Embodiment 4

[0175] Figure 8 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0176] like Figure 8 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0177] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0178] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for determining the range of the crushing zone controlled by ultra-deep strike-slip faults.

[0179] In some embodiments, the method for determining the range of the crushing zone controlled by ultra-deep strike-slip faults may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for determining the range of the crushing zone controlled by ultra-deep strike-slip faults described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for determining the range of the crushing zone controlled by ultra-deep strike-slip faults in any other appropriate manner (e.g., by means of firmware).

[0180] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0181] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0182] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0183] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0184] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0185] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0186] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0187] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining the range of a fracture zone controlled by an ultra-deep strike-slip fault, characterized in that: include: Determine the top vertical depth and bottom vertical depth of the oil and gas layer controlled by ultra-deep strike-slip faults based on well logging data; Determine the top closure distance and the bottom closure distance of the oil and gas layer according to the comprehensive logging data; Determine the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth; Determine the horizontal width of the broken zone according to the top closing distance and the bottom closing distance; The scope of the broken zone controlled by the ultra-deep strike-slip fault is determined according to the vertical thickness of the broken zone and the horizontal width of the broken zone.

2. The method according to claim 1, characterized in that After determining the horizontal width of the broken zone according to the top closing distance and the bottom closing distance, the method further comprises: Determine the first vertical thickness of the Class I reservoir and the Class II reservoir in the oil and gas layer according to the completion data; Based on the comprehensive logging data, the second vertical thickness of the fracture zone controlled by ultra-deep strike-slip faults is determined; Determining a first horizontal width of the broken zone according to the target point coordinates; Accordingly, the determination of the range of the broken zone controlled by the ultra-deep strike-slip fault according to the vertical thickness of the broken zone and the horizontal width of the broken zone includes: Determine a target broken zone vertical thickness according to the first vertical thickness, the second vertical thickness and the broken zone vertical thickness; Determining a target horizontal width of the broken zone according to the first horizontal width and the horizontal width of the broken zone; According to the vertical thickness of the target broken zone and the horizontal width of the target broken zone, the range of the broken zone controlled by the ultra-deep strike-slip fault is determined.

3. The method according to claim 2, characterized in that Determining a target horizontal width of the broken zone according to the first horizontal width and the horizontal width of the broken zone includes: If the horizontal width of the broken zone exists, determining the horizontal width of the broken zone as the target horizontal width of the broken zone; Otherwise, the first horizontal width is determined to be the target broken zone horizontal width.

4. The method according to claim 2, characterized in that: The step of determining a target broken zone vertical thickness according to the first vertical thickness, the second vertical thickness and the broken zone vertical thickness comprises: If the vertical thickness of the broken zone exists, determining the vertical thickness of the broken zone as the vertical thickness of the target broken zone; If the vertical thickness of the broken zone does not exist and the first vertical thickness exists, determining the first vertical thickness as the target vertical thickness of the broken zone; If the vertical thickness of the broken zone is not determined and the first vertical thickness is not determined, the second vertical thickness is determined as the target vertical thickness of the broken zone.

5. The method according to claim 2, characterized in that: After determining the second vertical thickness of the fracture zone controlled by the ultra-deep strike-slip fault according to the comprehensive logging data, the method further comprises: Determine whether there is a drilling empty section and a drilling loss section of the oil and gas layer according to the monitoring while drilling data; If so, determining the first top depth and the first bottom depth of the drilling emptying section, and the second top depth and the second bottom depth of the drilling lost circulation section according to the drilling monitoring data; Accordingly, determining the range of the crushing zone controlled by the ultra-deep strike-slip fault according to the vertical thickness of the target crushing zone and the horizontal width of the target crushing zone includes: The range of the crushing zone controlled by the ultra-deep strike-slip fault is determined according to the first top depth, the first bottom depth, the second top depth, the second bottom depth, the vertical thickness of the target crushing zone and the horizontal width of the target crushing zone.

6. The method according to claim 2, characterized in that Determining the first horizontal width of the broken zone according to the target point coordinates includes: Determining the wellhead coordinates of the target well according to the completion data; Determining the target point coordinates of the target drilling according to the completion data; A first horizontal width of the fracture zone is determined according to the drilling wellhead coordinates and the target point coordinates.

7. The method according to claim 6, characterized in that The calculation expression of the first horizontal width is: When the drilling trajectory is a deviated well trajectory, the first horizontal width is: First horizontal width = L w0 -L A0 When the drilling trajectory is a horizontal well trajectory: First horizontal width = L B0 -L A0 Where: L A0 It indicates the horizontal distance from the drilling target point A to the wellhead; L B0 It indicates the horizontal distance between the drilling target point B and the wellhead; L W0 It indicates the horizontal distance from the bottom of the well to the wellhead.

8. A device for determining the range of a fracture zone controlled by an ultra-deep strike-slip fault, characterized in that: include: A vertical depth acquisition module is used to determine the top vertical depth and bottom vertical depth of the oil and gas layer controlled by the ultra-deep strike-slip fault according to the well logging data; A closure distance determination module, used to determine the top closure distance and the bottom closure distance of the oil and gas layer according to the comprehensive logging data; A broken zone thickness determination module, used to determine the vertical thickness of the broken zone according to the top vertical depth and the bottom vertical depth; A broken zone width determination module, used to determine the horizontal width of the broken zone according to the top closing distance and the bottom closing distance; The crushing range determination module is used to determine the crushing zone range controlled by the ultra-deep strike-slip fault according to the vertical thickness of the crushing zone and the horizontal width of the crushing zone.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for determining the range of a crushing zone controlled by an ultra-deep strike-slip fault according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the range of a broken zone controlled by an ultra-deep strike-slip fault according to any one of claims 1 to 7 when the processor executes the instructions.

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