Method, device and equipment for determining correction coefficient of trap volume of faulted anticline type and medium

Abstract

The embodiment of the present application discloses a method, device, equipment and medium for determining the volume correction coefficient of a faulted anticline trap. The method comprises the following steps: determining the target parameter information of a to-be-measured faulted anticline trap on a standard cross section; the standard cross section is used to represent the plane where the bottom surface of the to-be-measured faulted anticline trap is located; determining the reference correction coefficient of the to-be-measured faulted anticline trap according to the target parameter information; the reference correction coefficient refers to the amplitude correction coefficient, the fault correction coefficient and the reservoir correction coefficient; and determining the volume correction coefficient of the to-be-measured faulted anticline trap according to the reference correction coefficient. According to the technical scheme, the volume correction coefficient of the faulted anticline trap approximating to the real underground situation can be quickly and accurately obtained based on the standard cross section of the faulted anticline trap, and the prediction speed and the prediction accuracy of the resource quantity of the faulted anticline trap can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geological research, and particularly relates to a method and device for determining a volume correction coefficient of a faulted anticline trap, equipment and a medium. BACKGROUND

[0002] The volume of a faulted anticline trap is a direct parameter for predicting the potential of oil and gas resources stored in the faulted anticline trap, and is generally calculated by multiplying the bottom area and the reservoir thickness. However, the volume of the faulted anticline trap determined in this way has a large error from the actual situation, and a volume correction coefficient is usually introduced to correct the calculated volume of the faulted anticline trap. Therefore, how to accurately obtain the volume correction coefficient of the faulted anticline trap has become the biggest bottleneck restricting the prediction accuracy of the resource amount of the faulted anticline trap.

[0003] In the prior art, the volume correction coefficient of the faulted anticline trap is usually directly assigned according to personal experience or by using an expert scoring method when predicting the resource amount of the faulted anticline trap, or the influence of this parameter on the prediction result of the resource amount is even directly ignored. The resource amount of the faulted anticline trap obtained in this way usually overestimates or underestimates the volume of the faulted anticline trap, and the result has obvious errors, so it cannot truly reflect the real resource potential underground, and directly affects the evaluation of the exploration potential of the faulted anticline trap and the deployment of the exploration plan. SUMMARY

[0004] The present application provides a method and device for determining a volume correction coefficient of a faulted anticline trap, equipment and a medium, which can quickly and accurately obtain the volume correction coefficient of the faulted anticline trap approximating the real situation underground based on the standard cross section of the faulted anticline trap, and is helpful to improve the prediction speed and accuracy of the resource amount of the faulted anticline trap.

[0005] According to an aspect of the present application, a method for determining a volume correction coefficient of a faulted anticline trap is provided, and the method comprises the following steps:

[0006] determining target parameter information of a to-be-tested faulted anticline trap on a standard cross section, wherein the standard cross section is used to represent a plane where a bottom surface of the to-be-tested faulted anticline trap is located;

[0007] determining a reference correction coefficient of the to-be-tested faulted anticline trap according to the target parameter information, wherein the reference correction coefficient refers to an amplitude correction coefficient, a fault correction coefficient and a reservoir correction coefficient;

[0008] determining a volume correction coefficient of the to-be-tested faulted anticline trap according to the reference correction coefficient;

[0009] The amplitude correction coefficient is determined according to a ratio of a first cross-sectional area to a second cross-sectional area, the first cross-sectional area is determined based on a first reference area, the first reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a top surface amplitude, the second cross-sectional area is determined based on a second reference area, the second reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap at an ideal angle, the ideal angle refers to a reservoir dip angle of 0 degrees, the fault correction coefficient is determined according to a ratio of a third cross-sectional area to the second cross-sectional area, the third cross-sectional area is determined based on a third reference area, the third reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a controlled circle fault, and the reservoir correction coefficient is determined according to a ratio of a fourth cross-sectional area to the second cross-sectional area, the fourth cross-sectional area is determined based on a fourth reference area, and the fourth reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a reservoir occurrence inclination.

[0010] According to another aspect of the present application, a device for determining a volume correction coefficient of a faulted anticline type trap is provided, comprising:

[0011] a target parameter information determination module configured to determine target parameter information of the to-be-measured faulted anticline type trap on a standard cross section, the standard cross section being used to represent a plane in which a bottom surface of the to-be-measured faulted anticline type trap is located;

[0012] a reference correction coefficient determination module configured to determine a reference correction coefficient of the to-be-measured faulted anticline type trap according to the target parameter information, the reference correction coefficient referring to an amplitude correction coefficient, a fault correction coefficient and a reservoir correction coefficient;

[0013] a volume correction coefficient determination module configured to determine a volume correction coefficient of the to-be-measured faulted anticline type trap according to the reference correction coefficient;

[0014] The amplitude correction coefficient is determined according to a ratio of a first cross-sectional area to a second cross-sectional area, the first cross-sectional area is determined based on a first reference area, the first reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a top surface amplitude, the second cross-sectional area is determined based on a second reference area, the second reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap at an ideal angle, the ideal angle refers to a reservoir dip angle of 0 degrees, the fault correction coefficient is determined according to a ratio of a third cross-sectional area to the second cross-sectional area, the third cross-sectional area is determined based on a third reference area, the third reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a controlled circle fault, and the reservoir correction coefficient is determined according to a ratio of a fourth cross-sectional area to the second cross-sectional area, the fourth cross-sectional area is determined based on a fourth reference area, and the fourth reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a reservoir occurrence inclination.

[0015] According to another aspect of the present application, there is provided an electronic device, comprising:

[0016] at least one processor; and

[0017] a memory connected with the at least one processor; wherein,

[0018] 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 to enable the at least one processor to perform the method for determining the faulted anticline trap volume correction coefficient according to any one of the embodiments of the present application.

[0019] According to another aspect of the present application, there is provided a computer readable storage medium storing computer instructions for enabling a processor to implement the method for determining the faulted anticline trap volume correction coefficient according to any one of the embodiments of the present application when executed by the processor.

[0020] The technical solution of the embodiments of the present application determines target parameter information of a faulted anticline trap to be measured on a standard cross section; the standard cross section is used to represent a plane in which a bottom surface of the faulted anticline trap to be measured is located; determines a reference correction coefficient of the faulted anticline trap to be measured according to the target parameter information; the reference correction coefficient refers to an amplitude correction coefficient, a fault correction coefficient and a reservoir correction coefficient; and determines a volume correction coefficient of the faulted anticline trap to be measured according to the reference correction coefficient. The technical solution can quickly and accurately obtain the volume correction coefficient of the faulted anticline trap approximating to the real situation of the underground based on the standard cross section of the faulted anticline trap, and is helpful to improve the prediction speed and prediction accuracy of the resource amount of the faulted anticline trap.

[0021] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort based on these drawings.

[0023] Figure 1 is a flow chart of a faulted anticline trap volume correction coefficient determination method according to the first embodiment of the present application;

[0024] Figure 2It is a schematic diagram of a standard cross section of a faulted anticline type structure trap according to the embodiment one of the present application;

[0025] Figure 3 It is a schematic diagram of a first cross sectional area of a faulted anticline type structure trap according to the embodiment one of the present application;

[0026] Figure 4 It is a schematic diagram of a third cross sectional area of a faulted anticline type structure trap according to the embodiment one of the present application;

[0027] Figure 5 It is a schematic diagram of a fourth cross sectional area of a faulted anticline type structure trap according to the embodiment one of the present application;

[0028] Figure 6 It is a flow chart of a method for determining a faulted anticline type trap volume correction coefficient according to the embodiment two of the present application;

[0029] Figure 7 It is a structural schematic diagram of a device for determining a faulted anticline type trap volume correction coefficient according to the embodiment three of the present application;

[0030] Figure 8 It is a structural schematic diagram of an electronic device for implementing a method for determining a faulted anticline type trap volume correction coefficient according to the embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", "target" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] Embodiment one

[0034] Figure 1 This is a flowchart illustrating a method for determining the volume correction coefficient of a faulted anticline trap according to Embodiment 1 of the present invention. This embodiment is applicable to situations requiring rapid and accurate calculation of the volume correction coefficient of a faulted anticline trap. This method can be executed by a device for determining the volume correction coefficient of a faulted anticline trap. This device can be implemented in hardware and / or software and can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes:

[0035] S110, determine the target parameter information of the anticlinal trap to be tested on the standard cross-section; the standard cross-section is used to represent the plane where the bottom surface of the anticlinal trap to be tested is located.

[0036] The term "anti-anticline trap" refers to a structural trap of an anti-anticline type awaiting testing. A structural trap refers to a trap formed by the local tectonic deformation of the reservoir strata and its overlying strata. Target parameter information can serve as the basis for determining the reference correction coefficients for the anti-anticline trap. The standard cross-section refers to a representative cross-section selected for determining the volume correction coefficients of the anti-anticline trap, and can be used to represent the plane containing the bottom surface of the anti-anticline trap.

[0037] In this embodiment, a standard cross-section of the anticline trap to be tested is first selected, and the target parameter information of the anticline trap on the standard cross-section is determined. Optionally, the standard cross-section is determined based on the cross-section where the target line segment is located within the anticline trap. The target line segment is the line segment perpendicular to the control fault within the anticline trap, and the length of the target line segment is equal to half the length of the reference line segment. The reference line segment is the longest line segment perpendicular to the control fault within the anticline trap.

[0038] Among these, the target line segment can serve as a direct basis for selecting the standard cross-section. Specifically, the standard cross-section is determined based on the cross-section where the target line segment is located within the closed area of ​​the anticline-type fault to be measured. The reference line segment can refer to the longest line segment perpendicular to the control fault within the closed area of ​​the anticline-type fault to be measured.

[0039] Figure 2 This is a schematic diagram of a standard cross-section of a broken anticline structure trap provided in Embodiment 1 of the present invention. Figure 2 As shown in the middle left figure, aa ′ bb represents the target line segment. ′ This represents the longest line segment (i.e., the reference line segment) perpendicular to the controlling fault within the trap of a fault-antic structure, where aa ′is perpendicular to the controlling fault of the faulted anticline type structural trap range, and aa ′ is equal to the length of bb ′ is equal to half of the length of bb Figure 2 As shown in the middle right graph, L r and H r respectively represent the reservoir cross-section length and the reservoir cross-section thickness in the faulted anticline type trap range on the standard cross-section under the ideal angle. It should be noted that the position of the target line segment aa ′ is the average position of the influence of L r on the bottom area of the faulted anticline type structural trap, so the selected standard cross-section is representative.

[0040] In S120, the reference correction coefficient of the to-be-measured faulted anticline type trap is determined according to the target parameter information. The reference correction coefficient refers to the amplitude correction coefficient, the fault correction coefficient and the reservoir correction coefficient.

[0041] The reference correction coefficient can be used as a basis for determining the volume correction coefficient of the to-be-measured faulted anticline type trap. Specifically, the reference correction coefficient refers to the amplitude correction coefficient, the fault correction coefficient and the reservoir correction coefficient. The amplitude correction coefficient is determined according to the ratio of the first cross-sectional area to the second cross-sectional area, the first cross-sectional area is determined based on the first reference area, the first reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap affected by the top amplitude, the second cross-sectional area is determined based on the second reference area, the second reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap under the ideal angle, the ideal angle refers to the reservoir dip angle of 0 degrees, the fault correction coefficient is determined according to the ratio of the third cross-sectional area to the second cross-sectional area, the third cross-sectional area is determined based on the third reference area, the third reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap affected by the controlling fault, and the reservoir correction coefficient is determined according to the ratio of the fourth cross-sectional area to the second cross-sectional area, the fourth cross-sectional area is determined based on the fourth reference area, and the fourth reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap affected by the reservoir occurrence inclination.

[0042] In this embodiment, after determining the target parameter information of the to-be-measured faulted anticline type trap on the standard cross-section, the reference correction coefficient of the to-be-measured faulted anticline type trap can be determined according to the target parameter information, that is, the amplitude correction coefficient, the fault correction coefficient and the reservoir correction coefficient are determined.

[0043] Optionally, in the embodiment, the reference correction coefficient of the to-be-tested faulted anticline type trap is determined according to the target parameter information, including: determining the amplitude correction coefficient of the to-be-tested faulted anticline type trap according to the amplitude parameter information in the target parameter information and a preset amplitude function; wherein the amplitude parameter information includes the reservoir cross-section length and the reservoir cross-section thickness within the range of the to-be-tested faulted anticline type trap on a standard cross-section under an ideal angle, and the top surface dip angle of the to-be-tested faulted anticline type trap on the standard cross-section; the preset amplitude function is used to describe the mapping relationship between the amplitude parameter information and the amplitude correction coefficient; determining the fault correction coefficient of the to-be-tested faulted anticline type trap according to the fault parameter information in the target parameter information and a preset fault function; wherein the fault parameter information includes the reservoir cross-section length and the reservoir cross-section thickness within the range of the to-be-tested faulted anticline type trap on a standard cross-section under an ideal angle, and the trap-controlling fault dip angle of the to-be-tested faulted anticline type trap on the standard cross-section; the preset fault function is used to describe the mapping relationship between the fault parameter information and the fault correction coefficient; determining the reservoir correction coefficient of the to-be-tested faulted anticline type trap according to the reservoir parameter information in the target parameter information and a preset reservoir function; wherein the reservoir parameter information includes the reservoir dip angle within the to-be-tested faulted anticline type trap, and the preset reservoir function is used to describe the mapping relationship between the reservoir parameter information and the reservoir correction coefficient.

[0044] The amplitude parameter information can be the parameter information associated with determining the amplitude correction coefficient in the target parameter information of the to-be-tested faulted anticline type trap. Specifically, the amplitude parameter information includes the reservoir cross-section length and the reservoir cross-section thickness within the range of the to-be-tested faulted anticline type trap on a standard cross-section under an ideal angle, and the top surface dip angle of the to-be-tested faulted anticline type trap on the standard cross-section. The preset amplitude function can be a preset function relationship for determining the amplitude correction coefficient of the to-be-tested faulted anticline type trap, and can be used to describe the mapping relationship between the amplitude parameter information and the amplitude correction coefficient. Optionally, the expression of the preset amplitude function is as follows: C = H r cot α / 2L r ; wherein C is the amplitude correction coefficient, L r is the reservoir cross-section length within the range of the to-be-tested faulted anticline type trap on a standard cross-section under an ideal angle, H r is the reservoir cross-section thickness within the range of the to-be-tested faulted anticline type trap on a standard cross-section under an ideal angle, and α is the top surface dip angle of the to-be-tested faulted anticline type trap on the standard cross-section.

[0045] Specifically, as shown in the right graph in Figure 2 , the cross-sectional area of the faulted anticline type structural trap under an ideal angle (i.e., the second cross-sectional area) can be represented as L r × H r . Figure 3This is a schematic diagram of the first cross-sectional area of ​​a fault-antic structural trap provided in Embodiment 1 of the present invention. The first cross-sectional area can be used to characterize the cross-sectional area of ​​the fault-antic structural trap caused by the influence of the top surface amplitude. For example... Figure 3 As shown, the first cross-sectional area can be expressed as 1 / 2 × H r ×H r ×cotα. Therefore, based on the ratio of the first cross-sectional area to the second cross-sectional area, the expression for the preset amplitude function can be obtained as follows: C=1 / 2×H r ×H r ×cotα / (L r ×H r )=H r cotα / 2L r After obtaining the target parameter information, the amplitude parameter information in the target parameter information can be substituted into the preset amplitude function to calculate the amplitude correction coefficient of the fault-antic structure trap.

[0046] The fault parameter information refers to the parameter information associated with determining the fault correction coefficient in the target parameter information of the anticline trap to be tested. Specifically, the fault parameter information includes the reservoir cross-sectional length and thickness within the range of the anticline trap under ideal angle on the standard cross-section, as well as the dip angle of the control fault of the anticline trap on the standard cross-section. The preset fault function refers to the pre-defined functional relationship for determining the fault correction coefficient of the anticline trap to be tested, which can be used to describe the mapping relationship between the fault parameter information and the fault correction coefficient. Optionally, the expression of the preset fault function is as follows: F = H r tanβ / 2L r Where F is the fault correction coefficient, and L r H represents the length of the reservoir cross-section within the tested anticline trap on a standard cross-section at an ideal angle. r β is the reservoir cross-sectional thickness within the tested fault-anticline trap on the standard cross-section under ideal angle, and β is the dip angle of the control fault of the tested fault-anticline trap on the standard cross-section.

[0047] Specifically, such as Figure 2 As shown in the middle right figure, the cross-sectional area (i.e., the second cross-sectional area) of the anticline trap under the ideal angle can be expressed as L. r ×H r . Figure 4 This is a schematic diagram of the third cross-sectional area of ​​a fault-antic structural trap provided in Embodiment 1 of the present invention. The third cross-sectional area can be used to characterize the cross-sectional area caused by the influence of the controlled fault in the fault-antic structural trap. Figure 4 As shown, the third cross-sectional area can be expressed as 1 / 2 × H r ×H r×tanβ. Therefore, based on the ratio of the third cross-sectional area to the second cross-sectional area, the expression for the preset fault function can be obtained as follows: F=1 / 2×H r ×H r ×tanβ / (L r ×H r )=H r tanβ / 2L r After obtaining the target parameter information, the fault parameter information in the target parameter information can be substituted into the preset fault function to calculate the fault correction coefficient of the anticline-type structural trap to be tested.

[0048] The reservoir parameter information refers to the parameter information associated with determining the reservoir correction coefficient in the target parameter information of the fault-anticline trap to be tested. Specifically, the reservoir parameter information includes the reservoir dip angle within the fault-anticline trap to be tested. The preset reservoir function refers to a pre-defined functional relationship for determining the reservoir correction coefficient of the fault-anticline trap to be tested, which can be used to describe the mapping relationship between the reservoir parameter information and the reservoir correction coefficient. Optionally, the expression of the preset reservoir function is as follows: R = 1 / cosγ-1; where R is the reservoir correction coefficient and γ is the reservoir dip angle within the fault-anticline trap to be tested.

[0049] Specifically, such as Figure 2 As shown in the middle right figure, the cross-sectional area (i.e., the second cross-sectional area) of the anticline trap under the ideal angle can be expressed as L. r ×H r . Figure 5 This is a schematic diagram of the fourth cross-sectional area of ​​a fault-antic structural trap provided in Embodiment 1 of the present invention. The ideal state refers to a state at an ideal angle, and the fourth cross-sectional area can be used to characterize the cross-sectional area of ​​the fault-antic trap affected by the reservoir's attitude and inclination. Figure 5 As shown, the fourth cross-sectional area can be expressed as L rt ×(H r -L r )×H r =L r / cosγ×H r -L r ×H r =L r ×H r ×(1 / cosγ-1), where L rt This represents the actual cross-sectional length of the reservoir within the faulted anticline trap due to the reservoir's dip in attitude. Based on the ratio of the fourth cross-sectional area to the second cross-sectional area, the expression for the preset reservoir function can be obtained as R = L. r ×H r ×(1 / cosγ-1) / (L r ×H r) = 1 / cosγ-1. After obtaining the target parameter information, the reservoir parameter information in the target parameter information can be substituted into the preset reservoir function, and the reservoir correction coefficient of the to-be-measured faulted anticline type trap is obtained through calculation.

[0050] In S130, the volume correction coefficient of the to-be-measured faulted anticline type trap is determined according to the reference correction coefficient.

[0051] In this embodiment, after the reference correction coefficient of the to-be-measured faulted anticline type trap is determined, the volume correction coefficient of the to-be-measured faulted anticline type trap can be further determined according to the reference correction coefficient. Optionally, the volume correction coefficient of the to-be-measured faulted anticline type trap is determined according to the reference correction coefficient, including: determining the volume correction coefficient of the to-be-measured faulted anticline type trap through a preset volume function, and the expression of the preset volume function is as follows: V FA = 1-C-F+R; wherein, V FA is the volume correction coefficient, C is the amplitude correction coefficient, F is the fault correction coefficient, and R is the reservoir correction coefficient.

[0052] The preset volume function can refer to a function relationship preset for determining the volume correction coefficient of the faulted anticline type structural trap. The preset volume function is expressed as V FA = 1-C-F+R.

[0053] In this embodiment, when determining the volume correction coefficient of the to-be-measured faulted anticline type trap, only the reference correction coefficient (amplitude correction coefficient, fault correction coefficient and reservoir correction coefficient) of the to-be-measured faulted anticline type trap needs to be substituted into the preset volume function, and the volume correction coefficient can be obtained through simple calculation. The preset volume function can be specifically expressed as V FA = 1-C-F+R = 1-H r cotα / 2L r -H r tanβ / 2L r +1 / cosγ-1 = 1 / cosγ-H r (cotα+tanβ) / 2L r . Wherein, L r and H r are the reservoir cross-sectional length and the reservoir cross-sectional thickness in the range of the to-be-measured faulted anticline type trap on the standard cross section under the ideal angle, respectively, α is the top surface inclination angle of the to-be-measured faulted anticline type trap on the standard cross section, β is the trap-controlling fault inclination angle of the to-be-measured faulted anticline type trap on the standard cross section, and γ is the reservoir inclination angle in the to-be-measured faulted anticline type trap.

[0054] For example, first, the standard cross section of the faulted anticline type structural trap is determined according to the cross section in which a target line segment in the range of the faulted anticline type structural trap is located. The target line segment aa' is perpendicular to the trap-controlling fault in the range of the faulted anticline type structural trap, and the length of the target line segment aa' is equal to half of the length of the third reference line segment bb', as shown in Fig. 1. Figure 2 Suppose that the length of bb' is 500 m according to the structural map of the faulted anticline type trap to be measured, thus L r = 500 m / 2 = 250 m can be obtained. According to the top surface structural map of the faulted anticline type structural trap, a = 30° can be calculated, and H r = 50 m can be obtained according to the logging interpretation result of the adjacent well around the faulted anticline type structural trap. At this time, the amplitude correction coefficient C of the faulted anticline type structural trap can be obtained according to the preset amplitude function as C = H r cot a / 2L r = 50 m x cot 30° / (2 x 250 m) = 0.173. According to the seismic profile of the faulted anticline type structural trap, b = 35° can be calculated, and thus the fault correction coefficient F of the faulted anticline type trap can be obtained according to the preset fault function as F = H r tan b / 2L r = 50 m x tan 35° / (2 x 250 m) = 0.070. According to the seismic profile of the faulted anticline type structural trap, g = 10° can be calculated, and thus the reservoir correction coefficient R of the faulted anticline type structural trap can be obtained according to the preset reservoir function as R = 1 / cos g - 1 = 1 / cos 10° - 1 = 0.015. Thus, the volume correction coefficient V of the faulted anticline type structural trap can be determined according to the preset volume function as V FA = 1-C-F+R = 1-0.173-0.070+0.015 = 0.772.

[0055] The technical scheme of the embodiment of the present application determines the target parameter information of the faulted anticline type trap to be measured on the standard cross section; the standard cross section is used to represent the plane in which the bottom surface of the faulted anticline type trap to be measured is located; the reference correction coefficient of the faulted anticline type trap to be measured is determined according to the target parameter information; the reference correction coefficient refers to the amplitude correction coefficient, the fault correction coefficient and the reservoir correction coefficient; and the volume correction coefficient of the faulted anticline type trap to be measured is determined according to the reference correction coefficient. The technical scheme can quickly and accurately obtain the volume correction coefficient of the faulted anticline type trap which approximates the real situation underground based on the standard cross section of the faulted anticline type trap, and is helpful to improve the prediction speed and the prediction accuracy of the resource quantity of the faulted anticline type trap.

[0056] Embodiment two

[0057] Figure 6A flow chart of a faulted anticline type trap volume correction coefficient determination method provided for the second embodiment of the present application is based on the above-mentioned embodiment for optimization.

[0058] As shown in the method of the present embodiment specifically includes the following steps: Figure 6

[0059] S210, determining target parameter information of the to-be-measured faulted anticline type trap on a standard cross section; the standard cross section is used to represent the plane where the bottom surface of the to-be-measured faulted anticline type trap is located.

[0060] Wherein, the standard cross section is determined according to the cross section where the target line segment in the to-be-measured faulted anticline type trap range is located, the target line segment is a line segment in the to-be-measured faulted anticline type trap range that is perpendicular to the trap-controlling fault, the length of the target line segment is equal to half of the length of the reference line segment, and the reference line segment is the longest line segment in the to-be-measured faulted anticline type trap range that is perpendicular to the trap-controlling fault.

[0061] S220, determining the amplitude correction coefficient of the to-be-measured faulted anticline type trap according to the amplitude parameter information in the target parameter information and a preset amplitude function.

[0062] Wherein, the amplitude correction coefficient is determined according to the ratio of the first cross-sectional area to the second cross-sectional area, the first cross-sectional area is determined based on the first reference area, the first reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap affected by the amplitude of the top surface, the second cross-sectional area is determined based on the second reference area, the second reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap under an ideal angle, and the ideal angle refers to a reservoir dip angle of 0 degrees. The amplitude parameter information includes the reservoir cross-sectional length and the reservoir cross-sectional thickness in the to-be-measured faulted anticline type trap range on the standard cross section under the ideal angle, and the top surface dip angle of the to-be-measured faulted anticline type trap on the standard cross section; and the preset amplitude function is used to describe the mapping relationship between the amplitude parameter information and the amplitude correction coefficient.

[0063] S230, determining the fault correction coefficient of the to-be-measured faulted anticline type trap according to the fault parameter information in the target parameter information and a preset fault function.

[0064] Wherein, the fault correction coefficient is determined according to the ratio of the third cross-sectional area to the second cross-sectional area, the third cross-sectional area is determined based on the third reference area, and the third reference area refers to the cross-sectional area of the to-be-measured faulted anticline type trap affected by the trap-controlling fault. The fault parameter information includes the reservoir cross-sectional length and the reservoir cross-sectional thickness in the to-be-measured faulted anticline type trap range on the standard cross section under the ideal angle, and the trap-controlling fault dip angle of the to-be-measured faulted anticline type trap on the standard cross section; and the preset fault function is used to describe the mapping relationship between the fault parameter information and the fault correction coefficient.

[0065] ​S240, determining a reservoir correction coefficient of the to-be-tested faulted anticline trap according to reservoir parameter information in the target parameter information and a preset reservoir function.

[0066] The reservoir correction coefficient is determined according to a ratio of a fourth cross-sectional area to a second cross-sectional area, the fourth cross-sectional area is determined based on a fourth reference area, and the fourth reference area refers to a cross-sectional area of the to-be-tested faulted anticline trap affected by a reservoir occurrence inclination. The reservoir parameter information includes a reservoir dip angle in the to-be-tested faulted anticline trap, and the preset reservoir function is used to describe a mapping relationship between the reservoir parameter information and the reservoir correction coefficient.

[0067] S250, determining a volume correction coefficient of the to-be-tested faulted anticline trap according to the amplitude correction coefficient, the fault correction coefficient and the reservoir correction coefficient.

[0068] For example, the volume correction coefficient of the to-be-tested faulted anticline trap is determined by using a preset volume function, and an expression of the preset volume function is as follows: V FA = 1 - C - F + R; wherein, V FA is the volume correction coefficient, C is the amplitude correction coefficient, F is the fault correction coefficient, and R is the reservoir correction coefficient.

[0069] The technical scheme of the embodiment of the present application can quickly and accurately obtain the volume correction coefficient of the faulted anticline trap approximating to the real situation of the underground based on the standard cross section of the faulted anticline trap, and helps to improve the prediction speed and prediction accuracy of the resource quantity of the faulted anticline trap.

[0070] Embodiment three

[0071] Figure 7 A structure diagram of a faulted anticline trap volume correction coefficient determination device provided by the third embodiment of the present application is shown in the figure. The device can execute the faulted anticline trap volume correction coefficient determination method provided by any embodiment of the present application, and has the corresponding function modules and beneficial effects of the execution method. As shown in the figure, the device comprises: Figure 7

[0072] A target parameter information determination module 310 is configured to determine target parameter information of a to-be-tested faulted anticline trap on a standard cross section, and the standard cross section is used to represent a plane where a bottom surface of the to-be-tested faulted anticline trap is located.

[0073] A reference correction coefficient determination module 320 is configured to determine a reference correction coefficient of the to-be-tested faulted anticline trap according to the target parameter information, and the reference correction coefficient refers to an amplitude correction coefficient, a fault correction coefficient and a reservoir correction coefficient.

[0074] A volume correction coefficient determination module 330 is configured to determine a volume correction coefficient of the to-be-tested faulted anticline trap according to the reference correction coefficient. ​

[0075] The amplitude correction coefficient is determined according to a ratio of a first cross-sectional area to a second cross-sectional area, the first cross-sectional area is determined based on a first reference area, the first reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a top surface amplitude, the second cross-sectional area is determined based on a second reference area, the second reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap at an ideal angle, the ideal angle refers to a reservoir dip angle of 0 degrees, the fault correction coefficient is determined according to a ratio of a third cross-sectional area to the second cross-sectional area, the third cross-sectional area is determined based on a third reference area, the third reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a controlled circle fault, and the reservoir correction coefficient is determined according to a ratio of a fourth cross-sectional area to the second cross-sectional area, the fourth cross-sectional area is determined based on a fourth reference area, and the fourth reference area refers to a cross-sectional area of the to-be-measured faulted anticline type trap affected by a reservoir occurrence inclination.

[0076] Optionally, the standard cross section is determined according to a cross section in which a target line segment in the to-be-measured faulted anticline type trap range is located, the target line segment is a line segment perpendicular to a controlled circle fault in the to-be-measured faulted anticline type trap range, and a length of the target line segment is equal to half of a length of a reference line segment, the reference line segment being a longest line segment perpendicular to the controlled circle fault in the to-be-measured faulted anticline type trap range.

[0077] Optionally, the reference correction coefficient determination module 320 is configured to:

[0078] determine the amplitude correction coefficient of the to-be-measured faulted anticline type trap according to amplitude parameter information in the target parameter information and a preset amplitude function, wherein the amplitude parameter information includes reservoir cross-sectional length and reservoir cross-sectional thickness of the to-be-measured faulted anticline type trap range on the standard cross section at an ideal angle, and a top surface dip angle of the to-be-measured faulted anticline type trap on the standard cross section, and the preset amplitude function is used to describe a mapping relationship between the amplitude parameter information and the amplitude correction coefficient;

[0079] determine the fault correction coefficient of the to-be-measured faulted anticline type trap according to fault parameter information in the target parameter information and a preset fault function, wherein the fault parameter information includes reservoir cross-sectional length and reservoir cross-sectional thickness of the to-be-measured faulted anticline type trap range on the standard cross section at an ideal angle, and a controlled circle fault dip angle of the to-be-measured faulted anticline type trap on the standard cross section, and the preset fault function is used to describe a mapping relationship between the fault parameter information and the fault correction coefficient;

[0080] The reservoir correction coefficient of the to-be-tested faulted anticline trap is determined according to reservoir parameter information in the target parameter information and a preset reservoir function, wherein the reservoir parameter information comprises a reservoir dip angle in the to-be-tested faulted anticline trap, and the preset reservoir function is used to describe a mapping relationship between the reservoir parameter information and the reservoir correction coefficient.

[0081] Optionally, an expression of the preset amplitude function is as follows:

[0082] C = H r cotα / 2L r ;

[0083] wherein C is an amplitude correction coefficient, L r is a reservoir cross-section length in a range of the to-be-tested faulted anticline trap on a standard cross-section under an ideal angle, H r is a reservoir cross-section thickness in the range of the to-be-tested faulted anticline trap on the standard cross-section under the ideal angle, and α is a top surface dip angle of the to-be-tested faulted anticline trap on the standard cross-section.

[0084] Optionally, an expression of the preset fault function is as follows:

[0085] F = H r tanβ / 2L r ;

[0086] wherein F is a fault correction coefficient, L r is the reservoir cross-section length in the range of the to-be-tested faulted anticline trap on the standard cross-section under the ideal angle, H r is the reservoir cross-section thickness in the range of the to-be-tested faulted anticline trap on the standard cross-section under the ideal angle, and β is a trap-controlling fault dip angle of the to-be-tested faulted anticline trap on the standard cross-section.

[0087] Optionally, an expression of the preset reservoir function is as follows:

[0088] R = 1 / cosγ-1;

[0089] wherein R is a reservoir correction coefficient, and γ is the reservoir dip angle in the to-be-tested faulted anticline trap.

[0090] Optionally, the volume correction coefficient determination module 330 is configured to:

[0091] determine a volume correction coefficient of the to-be-tested faulted anticline trap by using a preset volume function, and an expression of the preset volume function is as follows:

[0092] V FA = 1-C-F+R;

[0093] wherein V FAis a volume correction coefficient, C is an amplitude correction coefficient, F is a fault correction coefficient, and R is a reservoir correction coefficient.

[0094] The device for determining the faulted anticline type trap volume correction coefficient provided by the embodiment of the present application can execute the method for determining the faulted anticline type trap volume correction coefficient provided by any embodiment of the present application, and has the function modules and beneficial effects corresponding to the execution method.

[0095] Embodiment Four

[0096] Figure 8 A structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application described and / or claimed in this document.

[0097] As shown in Figure 8 The electronic device 10 includes at least one processor 11, and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11, wherein the memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or loaded from the storage unit 18 into 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.

[0098] A plurality 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, a speaker, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0099] The processor 11 can be various general and / or special purpose processing components having 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 specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 performs various methods and processes described above, such as the faulted anticline trap volume correction factor determination method.

[0100] In some embodiments, the faulted anticline trap volume correction factor determination method can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded onto the RAM 13 and executed by the processor 11, one or more steps of the faulted anticline trap volume correction factor determination method described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the faulted anticline trap volume correction factor determination method by any other suitable means, such as by means of firmware.

[0101] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (PLD), a computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0102] Computer programs used to implement the methods of the application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed, implements the functions / acts specified in the flowcharts and / or block diagrams. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, partially on a machine and partially on a remote machine or entirely on a remote machine or server.

[0103] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0104] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0105] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), blockchain network, and the Internet.

[0106] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can 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 large management difficulty and weak business scalability in traditional physical host and VPS service.

[0107] It should be understood that the various forms of flow shown above can be reordered, added to, or have steps deleted. For example, the steps described in the present application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which are not limited herein.

[0108] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining the volume correction coefficient of a broken anticline trap, characterized in that, The method includes: Determine the target parameter information of the fault-antic trap to be tested on a standard cross-section; the standard cross-section is used to represent the plane where the bottom surface of the fault-antic trap to be tested is located, and the target parameter information includes amplitude parameter information, fault parameter information and reservoir parameter information; The reference correction coefficients for the anticline trap to be tested are determined based on the target parameter information; the reference correction coefficients refer to the amplitude correction coefficient, fault correction coefficient, and reservoir correction coefficient. The volume correction coefficient of the anticline trap to be tested is determined based on the reference correction coefficient. The amplitude correction coefficient is determined based on the ratio of the first cross-sectional area to the second cross-sectional area. The first cross-sectional area is determined based on the first reference area, which is the cross-sectional area of ​​the tested fault-anticline trap affected by the amplitude of the top surface. The second cross-sectional area is determined based on the second reference area, which is the cross-sectional area of ​​the tested fault-anticline trap at an ideal angle, where the ideal angle is 0 degrees. The fault correction coefficient is determined based on the ratio of the third cross-sectional area to the second cross-sectional area. The third cross-sectional area is determined based on the third reference area, which is the cross-sectional area of ​​the tested fault-anticline trap affected by the controlled fault. The reservoir correction coefficient is determined based on the ratio of the fourth cross-sectional area to the second cross-sectional area. The fourth cross-sectional area is determined based on the fourth reference area, which is the cross-sectional area of ​​the tested fault-anticline trap affected by the dip of the reservoir. The volume correction coefficient for the anticline trap to be tested is determined based on the reference correction coefficient, including: The volume correction coefficient of the anticline trap to be tested is determined by a preset volume function, the expression of which is as follows: ； in, This is the volume correction factor. This is the amplitude correction factor. This is the fault correction coefficient. This is the reservoir correction factor.

2. The method according to claim 1, characterized in that, The standard cross section is determined based on the cross section where the target line segment is located within the closed area of ​​the anticline under test. The target line segment is the line segment perpendicular to the control fault within the closed area of ​​the anticline under test. The length of the target line segment is equal to half the length of the reference line segment. The reference line segment is the longest line segment perpendicular to the control fault within the closed area of ​​the anticline under test.

3. The method according to claim 2, characterized in that, The reference correction coefficients for the anticline trap to be tested are determined based on the target parameter information, including: The amplitude correction coefficient of the to-be-tested fault-anticline trap is determined based on the amplitude parameter information in the target parameter information and the preset amplitude function; wherein, the amplitude parameter information includes the reservoir cross-sectional length and reservoir cross-sectional thickness within the range of the to-be-tested fault-anticline trap on the standard cross-section at an ideal angle, and the top surface dip angle of the to-be-tested fault-anticline trap on the standard cross-section; the preset amplitude function is used to describe the mapping relationship between the amplitude parameter information and the amplitude correction coefficient, and the preset amplitude function is determined based on the ratio of the first cross-sectional area to the second cross-sectional area; The fault correction coefficient of the anticline trap to be tested is determined based on the fault parameter information in the target parameter information and the preset fault function. The fault parameter information includes the reservoir cross-sectional length and thickness within the range of the anticline trap under ideal angles on the standard cross-section, as well as the control fault dip angle of the anticline trap on the standard cross-section. The preset fault function describes the mapping relationship between the fault parameter information and the fault correction coefficient, and is determined based on the ratio of the third cross-sectional area to the second cross-sectional area. The reservoir correction coefficient of the to-be-tested fault-anticline trap is determined based on the reservoir parameter information in the target parameter information and the preset reservoir function; wherein, the reservoir parameter information includes the reservoir dip angle within the to-be-tested fault-anticline trap, and the preset reservoir function is used to describe the mapping relationship between the reservoir parameter information and the reservoir correction coefficient, and the preset reservoir function is determined based on the ratio of the fourth cross-sectional area to the second cross-sectional area.

4. The method according to claim 3, characterized in that, The expression for the preset amplitude function is as follows: ； in, This is the amplitude correction factor. The length of the reservoir cross-section within the tested anticline trap area on the standard cross-section under ideal angle is the length of the cross-section. The thickness of the reservoir cross-section within the tested anticline trap area on a standard cross-section under ideal angle conditions. The angle of inclination of the top surface of the anticline trap under test on the standard cross-section.

5. The method according to claim 3, characterized in that, The expression for the preset fault function is as follows: ； in, This is the fault correction coefficient. The length of the reservoir cross-section within the tested anticline trap area on the standard cross-section under ideal angle is the length of the cross-section. The thickness of the reservoir cross-section within the tested anticline trap area on a standard cross-section under ideal angle conditions. The dip angle of the control fault in the anticline trap under test on the standard cross section.

6. The method according to claim 3, characterized in that, The expression for the preset reservoir function is as follows: ； in, This is the reservoir correction factor. The dip angle of the reservoir within the anticline trap to be measured is given.

7. A device for determining the volume correction coefficient of a broken anticline trap, characterized in that, The device includes: The target parameter information determination module is used to determine the target parameter information of the fault-antic trap to be tested on a standard cross-section; the standard cross-section is used to represent the plane where the bottom surface of the fault-antic trap to be tested is located, and the target parameter information includes amplitude parameter information, fault parameter information and reservoir parameter information; The reference correction coefficient determination module is used to determine the reference correction coefficient of the fault-antic trap to be tested based on the target parameter information; the reference correction coefficient refers to the amplitude correction coefficient, fault correction coefficient, and reservoir correction coefficient. The volume correction coefficient determination module is used to determine the volume correction coefficient of the test anticline trap based on the reference correction coefficient. The amplitude correction coefficient is determined based on the ratio of the first cross-sectional area to the second cross-sectional area. The first cross-sectional area is determined based on the first reference area, which is the cross-sectional area of ​​the tested fault-anticline trap affected by the amplitude of the top surface. The second cross-sectional area is determined based on the second reference area, which is the cross-sectional area of ​​the tested fault-anticline trap at an ideal angle, where the ideal angle is 0 degrees. The fault correction coefficient is determined based on the ratio of the third cross-sectional area to the second cross-sectional area. The third cross-sectional area is determined based on the third reference area, which is the cross-sectional area of ​​the tested fault-anticline trap affected by the controlled fault. The reservoir correction coefficient is determined based on the ratio of the fourth cross-sectional area to the second cross-sectional area. The fourth cross-sectional area is determined based on the fourth reference area, which is the cross-sectional area of ​​the tested fault-anticline trap affected by the dip of the reservoir. The volume correction coefficient determination module is used for: The volume correction coefficient of the anticline trap to be tested is determined by a preset volume function, the expression of which is as follows: ； in, This is the volume correction factor. This is the amplitude correction factor. This is the fault correction coefficient. This is the reservoir correction factor.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the method for determining the volume correction coefficient of a broken anticline trap as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the method for determining the volume correction coefficient of a broken anticline trap as described in any one of claims 1-6.

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