CN107703542B - Method and device for determining seismic horizon of reverse fault area - Google Patents
Method and device for determining seismic horizon of reverse fault area Download PDFInfo
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Abstract
The invention provides a method and a device for determining seismic horizons of a reverse fault area, wherein the method comprises the following steps: acquiring two-dimensional seismic data or three-dimensional seismic data in a target work area; segmenting a preset horizon of the two-dimensional seismic data or the three-dimensional seismic data based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon sections; and respectively determining the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon. According to the embodiment of the invention, the prediction precision of the fault stratum geological structure is greatly improved.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a method and a device for determining a seismic horizon in a reverse fault area.
Background
The determination of the seismic horizon can refer to obtaining the geological significance of the seismic reflection horizon according to the waveform characteristics and the geological rules of the time section. For real formations, because of the formation duplication near certain faults, there will also be horizon duplication at seismic horizons reflecting subsurface formations. That is, there may be multiple values for a two-dimensional gather or a three-dimensional geological profile corresponding to a seismic horizon. However, in the prior art, when the horizons of the faults with the formation duplication phenomenon are interpreted, only the value of a certain fault is selected as the horizon value of the corresponding horizon, so that the obtained horizon interpretation result is not in line with the geological structure of the actual fault.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The invention provides a method and a device for determining a seismic horizon in a reverse fault area, which aim to accurately describe the characteristics of a fault geological structure with a stratum repetition phenomenon.
The embodiment of the invention provides a method for determining a seismic horizon, which comprises the following steps: acquiring two-dimensional seismic data or three-dimensional seismic data in a target work area; segmenting preset horizons of the two-dimensional seismic data or the three-dimensional seismic data based on the number of broken blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon sections, wherein the number of the horizon sections is equal to the number of broken blocks in the two-dimensional seismic data or the three-dimensional seismic data, the preset horizons of the two-dimensional seismic data adopt a segmented structure, and the segmented structure of the two-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining a position name of a preset position of the two-dimensional seismic data, a data number of the two-dimensional seismic data, an abscissa of the two-dimensional seismic data, an ordinate of the two-dimensional seismic data, and time or depth of the two-dimensional seismic data at the preset position, wherein the preset position of the three-dimensional seismic data adopts a segmented structure, and the segmented structure of the three-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining three-dimensional seismic data, wherein the three-dimensional seismic data comprise a horizon name of a preset horizon of the three-dimensional seismic data, a transverse number of the three-dimensional seismic data, a longitudinal number of the three-dimensional seismic data, a transverse coordinate of the three-dimensional seismic data, a longitudinal coordinate of the three-dimensional seismic data, and time or depth of the three-dimensional seismic data at the preset horizon; and respectively determining the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in a preset horizon.
In one embodiment, after determining the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data, respectively, for respective interval segments in a preset horizon, the method may further comprise: when two-dimensional seismic data are obtained, determining seismic horizons of the two-dimensional seismic data in the preset horizons according to the superposition condition of each horizon section in a two-dimensional space; and when the three-dimensional seismic data are acquired, determining the seismic horizon of the three-dimensional seismic data in the preset horizon according to the superposition condition of each horizon section in the three-dimensional space.
In one embodiment, after determining the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data, respectively, for respective interval segments in a preset horizon, the method may further comprise: and determining the velocity value or the wave impedance value of the two-dimensional geological data or the three-dimensional seismic data in each horizon section in the preset horizon according to the seismic horizon of each horizon section in the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data.
In one embodiment, after determining the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data, respectively, for respective interval segments in a preset horizon, the method may further comprise: and sequentially drawing a construction drawing of each level section in the plurality of level sections according to a preset display sequence of each level section in the plurality of level sections.
In one embodiment, the predetermined display order of the horizon segments in the plurality of horizon segments can be determined by predetermined survey requirements.
In one embodiment, the two-dimensional seismic data may be comprised of an inverse fault or an unmasked fault, and the three-dimensional seismic data may be comprised of an inverse fault or an unmasked fault.
The embodiment of the invention also provides a device for determining the seismic horizon, which comprises: the seismic data acquisition module is used for acquiring two-dimensional seismic data or three-dimensional seismic data in a target work area; a horizon segmentation module, configured to segment a preset horizon of the two-dimensional seismic data or the three-dimensional seismic data based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon segments, where the number of horizon segments is equal to the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data, and the preset horizon of the two-dimensional seismic data adopts a segmented structure, where the segmented structure of the two-dimensional seismic data at least includes the following information: the method comprises the following steps of obtaining a position name of a preset position of the two-dimensional seismic data, a data number of the two-dimensional seismic data, an abscissa of the two-dimensional seismic data, an ordinate of the two-dimensional seismic data, and time or depth of the two-dimensional seismic data at the preset position, wherein the preset position of the three-dimensional seismic data adopts a segmented structure, and the segmented structure of the three-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining three-dimensional seismic data, wherein the three-dimensional seismic data comprises a horizon name of a preset horizon of the three-dimensional seismic data, a data number of the three-dimensional seismic data, a transverse number of the three-dimensional seismic data, a longitudinal number of the three-dimensional seismic data, a transverse coordinate of the three-dimensional seismic data, a longitudinal coordinate of the three-dimensional seismic data, and time or depth of the three-dimensional seismic data at the preset horizon; and the seismic horizon determining module is used for respectively determining the seismic horizons of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizons.
In one embodiment, the apparatus may further include: the two-dimensional seismic horizon determining module is used for determining seismic horizons of the two-dimensional seismic data in a preset horizon according to the superposition condition of each horizon section in a two-dimensional space when the two-dimensional seismic data is acquired after the seismic horizons of each horizon section in the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data are respectively determined; and the three-dimensional seismic horizon determining module is used for determining the seismic horizon of the three-dimensional seismic data in the preset horizon according to the superposition condition of each horizon section in a three-dimensional space under the condition of acquiring the three-dimensional seismic data.
In one embodiment, the apparatus may further include: and the seismic value determining module is used for determining a velocity value or a wave impedance value of each horizon section of the two-dimensional geological data or the three-dimensional seismic data in a preset horizon according to the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon after the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon is respectively determined.
In one embodiment, the apparatus may further include: and the structure drawing module is used for sequentially drawing the structure drawing of each horizon section in the plurality of horizon sections according to the preset display sequence of each horizon section in the plurality of horizon sections after the seismic horizons of each horizon section in the preset horizons of the two-dimensional seismic data or the three-dimensional seismic data are respectively determined.
In the embodiment of the invention, the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data is segmented based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon sections, so that a novel horizon structure definition method is obtained.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a flow chart of a seismic horizon determination method provided herein;
FIG. 2 is a schematic diagram of a horizon structure constructed using a prior art method;
FIG. 3 is a schematic view of a horizon configuration constructed using the seismic horizon determination method proposed in the present application;
FIG. 4 is a block diagram of a seismic horizon determining apparatus according to the present disclosure.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Considering the defect that when the horizon interpretation is carried out on faults with stratum repetition phenomena in the prior art, only a value of a certain fault is selected as a horizon value of a corresponding horizon, so that an obtained horizon interpretation result is not accordant with the geological structure of an actual fault, the inventor provides a method for segmenting two-dimensional seismic data or a preset horizon of the three-dimensional seismic data in a target work area based on the number of fault blocks in the target work area to obtain a plurality of horizon sections, and further respectively determining the seismic horizon of each horizon section in the plurality of horizon sections. Based on this, a method for determining a seismic horizon is proposed, which may comprise the following steps, as shown in fig. 1:
s101: and acquiring two-dimensional seismic data or three-dimensional seismic data in the target work area.
Specifically, the two-dimensional seismic data may be composed of an inverse fault or an unmasked fault, and the three-dimensional seismic data may be composed of an inverse fault or an unmasked fault. The predetermined horizon may be a particular position in the stratigraphic sequence determined based on existing survey requirements.
S102: segmenting a preset horizon of the two-dimensional seismic data or the three-dimensional seismic data based on the number of broken blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon sections, wherein the number of the horizon sections is equal to the number of broken blocks in the two-dimensional seismic data or the three-dimensional seismic data.
The preset horizon of the two-dimensional seismic data in the target work area is of a segmented structure, and the segmented structure at least comprises the following information: the method comprises the following steps that the position name of a preset position of the two-dimensional seismic data, the data number of the two-dimensional seismic data, the abscissa of the two-dimensional seismic data, the ordinate of the two-dimensional seismic data and the time or depth of the two-dimensional seismic data at the preset position are in a segmented structure, and the segmented structure of the three-dimensional seismic data at least comprises the following information: the method comprises the steps of obtaining a horizon name of a preset horizon of the three-dimensional seismic data, a horizontal number of the three-dimensional seismic data, a longitudinal number of the three-dimensional seismic data, a horizontal coordinate of the three-dimensional seismic data, a vertical coordinate of the three-dimensional seismic data, and time or depth of the three-dimensional seismic data at the preset horizon.
In the embodiment of the application, the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data can be segmented based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data, so that a plurality of horizon segments can be obtained. Wherein the number of horizon segments obtained may be equal to the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data. And segmenting the preset horizon of the two-dimensional or three-dimensional seismic data according to the positions of the fault blocks, wherein the obtained fault blocks positioned at the preset horizon are a plurality of horizon sections.
Specifically, in an embodiment of the present application, a number N of break blocks in a preset horizon may be determined first, where N is a positive integer; and segmenting the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data according to the distribution condition of the N fault blocks, thereby obtaining N horizon sections.
Further, when two-dimensional seismic data are acquired, the time or depth of each horizon section of the two-dimensional seismic data in the preset horizon corresponds to the ground coordinates of the two-dimensional seismic data one by one, wherein the ground coordinates of the two-dimensional seismic data include: the data serial number of the two-dimensional seismic data, the abscissa of the two-dimensional seismic data and the ordinate of the two-dimensional seismic data; when the three-dimensional seismic data are acquired, the time or depth of each horizon section of the three-dimensional seismic data in a preset horizon corresponds to the ground coordinates of the three-dimensional seismic data one by one, wherein the ground coordinates of the three-dimensional seismic data comprise: the horizontal number of the three-dimensional seismic data, the longitudinal number of the three-dimensional seismic data, the abscissa of the three-dimensional seismic data and the ordinate of the three-dimensional seismic data. Each of a plurality of horizon segments (e.g., segment1, segment2, segment3, …, segment) obtained by segmenting two-dimensional seismic data (segment) includes the following information: the method comprises the steps of obtaining a horizon name (horizon) of a preset horizon of two-dimensional seismic data, a data number (CDP number) of the two-dimensional seismic data, an abscissa (x) of the two-dimensional seismic data, an ordinate (y) of the two-dimensional seismic data, and time (time) or depth (depth) of the two-dimensional seismic data at the preset horizon; each horizon section in a plurality of horizon sections obtained after three-dimensional seismic data segmentation comprises the following information: the method comprises the steps of obtaining a horizon name (horizon) of a preset horizon of three-dimensional seismic data, a horizontal number (inline) of the three-dimensional seismic data, a longitudinal number (xline) of the three-dimensional seismic data, a horizontal coordinate (x) of the three-dimensional seismic data, a vertical coordinate (y) of the three-dimensional seismic data, and time (time) or depth (depth) of the three-dimensional seismic data at the preset horizon. Then, the seismic data interpretation can be performed according to the information of the horizon section to be determined, and further the seismic horizon of the corresponding horizon section is determined.
For example: the information of the horizon segment to be determined is: the horizon1 of the two-dimensional seismic data, the data number 1, the abscissa 2, the ordinate 2, and the time at the horizon1 is 5, and the horizon segment is interpreted, so that the seismic horizon of the horizon segment can be obtained. Likewise, the plurality of horizon segments may be interpreted such that seismic horizons for each of the plurality of horizon segments are possible.
S103: and respectively determining the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon.
In this embodiment, after obtaining the plurality of horizon sections, the seismic horizon or the horizon line of each horizon section in the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data may be determined according to the seismic horizon interpretation result for each horizon section in the plurality of horizon sections. Seismic horizon interpretation may refer to determining a seismic horizon or horizon line for the formation under test.
In the prior art, a seismic Horizon has a one-to-one correspondence with a two-dimensional CDP or a three-dimensional INLINE or xline, that is, a CDP (or INLINE or xline) has only one value of a certain seismic Horizon. Therefore, in the existing seismic interpretation method and software system, the upper part of the reverse fault or the reverse-masked fault is interpreted, the lower part of the stratum repetition section of the reverse fault or the reverse-masked fault cannot be interpreted as a blank section, and similarly, the lower part of the reverse fault or the reverse-masked fault is interpreted, and the upper part of the stratum repetition section of the reverse fault or the reverse-masked fault cannot be interpreted as a blank section. The method adopts a brand-new seismic horizon structure, a plurality of segments are defined under a certain seismic horizon, and each segment is in one-to-one correspondence with a CDP (or INLINE, CROSSLINE), so that when the seismic horizon near a reverse fault or an inverse fault is explained, one segment is selected on the upper plate for explanation, the other segment is selected on the lower plate for explanation, and complete horizon explanation results are obtained on the reverse fault or the inverse fault.
In an embodiment of the present application, after determining the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data in each horizon section of the preset horizons, respectively, the method may further include: when the two-dimensional seismic data are acquired, determining the seismic horizon of the two-dimensional seismic data in the preset horizon according to the superposition condition of each horizon section in the two-dimensional space; when the three-dimensional seismic data are obtained, the seismic horizon of the three-dimensional seismic data in the preset horizon can be determined according to the superposition condition of each horizon section in the three-dimensional space.
In another embodiment of the present application, after determining the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data in the respective horizon sections of the preset horizons, respectively, the method may further include: and determining the velocity value or wave impedance value of the two-dimensional geological data or the three-dimensional seismic data in each horizon section in the preset horizon according to the seismic horizon of each horizon section in the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data. In seismic inversion, seismic horizons can obtain velocity values or wave impedance values among the seismic horizons, and horizon segmentation can obtain the spatial extension range of the seismic velocity values or the wave impedance values. Therefore, when the seismic horizon is obtained by adopting the seismic horizon determining method, the problems of seismic horizon interpretation, formation of a map, seismic inversion and the like in the target work area can be solved.
In another embodiment of the present application, after determining the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data in the respective horizon sections of the preset horizons, respectively, the method may further include: and sequentially drawing a construction drawing of each horizon section in the plurality of horizon sections according to a preset display sequence of each horizon section in the plurality of horizon sections. The preset display sequence can be determined by preset exploration requirements.
In the present embodiment, the method for determining a seismic horizon is used to determine a horizon and draw a structure diagram for a certain area. It should be noted, however, that the specific examples are only for better illustration of the present invention and should not be construed as limiting the present invention. Specifically, the method can comprise the following steps:
step 1: collecting seismic data in a target work area, and obtaining a seismic section through data processing;
step 2: designing a brand-new seismic horizon structure, defining a plurality of segments (such as segment1, segment2, segment3, … and segment) under a certain seismic horizon, wherein each segment is in one-to-one correspondence with two-dimensional CDP (or three-dimensional INLINE and xline),
and step 3: a segmentation structure is defined in the program, as follows in language c:
for a two-dimensional earthquake:
wherein, horizon1 is the horizon name, CDP two-dimensional CDP number, x, y are the corresponding coordinate of two-dimensional CDP respectively, time is the time value of the seismic horizon corresponding to two-dimensional CDP;
for a three-dimensional earthquake:
wherein, horizon1 is a horizon name, inline and xline are respectively three-dimensional inline and xline numbers, x and y are respectively coordinates corresponding to the three-dimensional inline and xline, and time is a seismic horizon time value corresponding to the three-dimensional inline and xline; segment1[ m ], segment2[ m ], … segment [ m ] are structural arrays of segments of horizon 1;
and 4, step 4: creating a plurality of segmented menus under the seismic horizon established by the seismic horizon interpretation window;
and 5: creating a horizon on a seismic horizon interpretation window, creating a plurality of subsections under a certain horizon according to the number of reverse faults, wherein the number of the subsections is equal to the number of port fault blocks formed by the reverse faults;
step 6: in the seismic horizon interpretation, one subsection is selected on the upper plate for interpretation and the other subsection is selected on the lower plate for interpretation aiming at a certain seismic horizon near an inverse fault or an inverse masked fault, and the whole interpretation of the certain seismic horizon is completed.
And 7: creating a menu for selecting a plurality of segments under the seismic horizon mapping window, and defining the display sequence of the plurality of segments;
and 8: selecting seismic horizons to be mapped in a seismic horizon mapping window, and defining a plurality of segmented display sequences according to the requirements of exploration targets and the like;
and step 9: according to the step 2 and the step 3, in seismic inversion, the seismic horizon is used for determining velocity values or wave impedance values among the seismic horizons, and the space extension range of a certain group of seismic velocity values or wave impedance values is determined in a segmented mode.
Fig. 2 shows a schematic view of a horizon structure drawn by a conventional method, and fig. 3 shows a schematic view of a horizon structure drawn by a seismic horizon determining method proposed in the present application. Fig. 2 and 3 both plot horizon1 of a reverse fault (at the black solid line in fig. 2 and 3), because segment1 of the upper disk and segment2 of the lower disk belong to the same horizon1 although they are 2 segments, and therefore, because of the existence of fault lines, horizon1 corresponds to multiple values at the same depth, the upper disk and the lower disk of the reverse fault in fig. 2 are both horizon-interpreted, but there is a part of the upper disk in fig. 3 that is not horizon-interpreted. Therefore, the seismic horizon determined by the method provided by the application is more accurate.
In the embodiment of the invention, the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data is segmented based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon sections, so that a novel horizon structure definition method is obtained.
Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a seismic horizon, as described in the following embodiments. Because the principle of solving the problems of the seismic horizon determining device is similar to that of the seismic horizon determining method, the implementation of the seismic horizon determining device can refer to the implementation of the seismic horizon determining method, and repeated details are not repeated. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated. Fig. 4 is a block diagram of an arrangement of a seismic horizon determining apparatus according to an embodiment of the invention, as shown in fig. 4, including: seismic data acquisition module 401, horizon segmentation module 402, and seismic horizon determination module 403, which are described below.
The seismic data acquisition module 401 may be configured to acquire two-dimensional seismic data or three-dimensional seismic data in a target work area, where a preset horizon of the two-dimensional seismic data is a segmented structure, and the segmented structure of the two-dimensional seismic data at least includes the following information: the method comprises the following steps of obtaining a position name of a preset position of the two-dimensional seismic data, a data number of the two-dimensional seismic data, an abscissa of the two-dimensional seismic data, an ordinate of the two-dimensional seismic data, and time or depth of the two-dimensional seismic data at the preset position, wherein the preset position of the three-dimensional seismic data adopts a segmented structure, and the segmented structure of the three-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining three-dimensional seismic data, wherein the three-dimensional seismic data comprises a horizon name of a preset horizon of the three-dimensional seismic data, a data number of the three-dimensional seismic data, a transverse number of the three-dimensional seismic data, a longitudinal number of the three-dimensional seismic data, a transverse coordinate of the three-dimensional seismic data, a longitudinal coordinate of the three-dimensional seismic data, and time or depth of the three-dimensional seismic data at the preset horizon;
a horizon segmentation module 402, configured to segment a preset horizon of the two-dimensional seismic data or the three-dimensional seismic data based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon segments, where the number of horizon segments is equal to the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data;
the seismic horizon determining module 403 may be configured to determine seismic horizons of each horizon segment of the two-dimensional seismic data or the three-dimensional seismic data in a preset horizon, respectively.
In one embodiment, the apparatus may further include: the two-dimensional seismic horizon determining module may be configured to determine, after the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizons are respectively determined, when the two-dimensional seismic data is acquired, the seismic horizons of the two-dimensional seismic data in the preset horizons according to a superposition condition of the two-dimensional seismic data in a two-dimensional space; the three-dimensional seismic horizon determining module may be configured to determine, when the three-dimensional seismic data is obtained, a seismic horizon of the three-dimensional seismic data in the preset horizon according to a superposition condition of each horizon section in a three-dimensional space.
In one embodiment, the apparatus may further include: the seismic value determination module may be configured to determine, after determining the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in a preset horizon, a velocity value or a wave impedance value of each horizon section of the two-dimensional geological data or the three-dimensional seismic data in a preset horizon according to the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in a preset horizon.
In one embodiment, the apparatus may further include: the structure diagram drawing module may be configured to, after the seismic horizons of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon sections are respectively determined, sequentially draw the structure diagram of each of the multiple horizon sections according to a display sequence preset by each of the multiple horizon sections.
By using the implementation mode of the seismic horizon determining device provided by each embodiment, the seismic horizon determining method can be automatically implemented, the seismic horizon can be predicted, the specific participation of implementing personnel is not needed, the prediction result of the seismic horizon can be directly output, the operation is simple and rapid, and the user experience is effectively improved.
It should be noted that the above-mentioned description of the apparatus according to the method embodiment may also include other embodiments, and specific implementation manners may refer to the description of the related method embodiment, which is not described herein again.
The present application is not limited to what has to be described in accordance with the embodiments of the present application. Certain industry standards, or implementations modified slightly from those described using custom modes or examples, may also achieve the same, equivalent, or similar, or other, contemplated implementations of the above-described examples. Examples of data acquisition/determination/display modes, etc. using these modifications or variations may still fall within the scope of alternative embodiments of the present application.
Although the present application provides method steps as described in an embodiment or flowchart, more or fewer steps may be included based on conventional or non-inventive means. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or end product executes, it may execute sequentially or in parallel (e.g., parallel processors or multi-threaded environments, or even distributed data processing environments) according to the method shown in the embodiment or the figures. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded.
The units, devices, modules, etc. set forth in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, in implementing the present application, the functions of each module may be implemented in one or more software and/or hardware, or a module implementing the same function may be implemented by a combination of a plurality of sub-modules or sub-units, and the like. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may therefore be considered as a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, classes, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like, and includes several instructions for enabling a computer device (which may be a personal computer, a mobile terminal, a server, or a network device) to execute the method according to the embodiments or some parts of the embodiments of the present application.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
While the present application has been described with examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit of the application, and it is intended that the appended claims encompass such variations and permutations without departing from the spirit of the application.
Claims (10)
1. A method for determining seismic horizons in a reverse fault region, comprising:
acquiring two-dimensional seismic data or three-dimensional seismic data in a target work area;
segmenting preset horizons of the two-dimensional seismic data or the three-dimensional seismic data based on the number of broken blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon sections, wherein the number of the horizon sections is equal to the number of broken blocks in the two-dimensional seismic data or the three-dimensional seismic data, the preset horizons of the two-dimensional seismic data adopt a segmented structure, and the segmented structure of the two-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining a position name of a preset position of the two-dimensional seismic data, a data number of the two-dimensional seismic data, an abscissa of the two-dimensional seismic data, an ordinate of the two-dimensional seismic data, and time or depth of the two-dimensional seismic data at the preset position, wherein the preset position of the three-dimensional seismic data adopts a segmented structure, and the segmented structure of the three-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining three-dimensional seismic data, wherein the three-dimensional seismic data comprise a horizon name of a preset horizon of the three-dimensional seismic data, a transverse number of the three-dimensional seismic data, a longitudinal number of the three-dimensional seismic data, a transverse coordinate of the three-dimensional seismic data, a longitudinal coordinate of the three-dimensional seismic data, and time or depth of the three-dimensional seismic data at the preset horizon;
and respectively determining the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in a preset horizon according to the seismic horizon interpretation result of each horizon section of the plurality of horizon sections.
2. The method of claim 1, wherein after determining the seismic horizon for each of the two-dimensional seismic data or the three-dimensional seismic data in a predetermined horizon, respectively, based on the seismic horizon interpretation for each of the plurality of horizon segments, the method further comprises:
when two-dimensional seismic data are obtained, determining seismic horizons of the two-dimensional seismic data in the preset horizons according to the superposition condition of each horizon section in a two-dimensional space;
and when the three-dimensional seismic data are acquired, determining the seismic horizon of the three-dimensional seismic data in the preset horizon according to the superposition condition of each horizon section in the three-dimensional space.
3. The method of claim 1, wherein after determining the seismic horizon for each of the two-dimensional seismic data or the three-dimensional seismic data in a predetermined horizon, respectively, based on the seismic horizon interpretation for each of the plurality of horizon segments, the method further comprises:
and determining the velocity value or the wave impedance value of the two-dimensional geological data or the three-dimensional seismic data in each horizon section in the preset horizon according to the seismic horizon of each horizon section in the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data.
4. The method of claim 1, wherein after determining the seismic horizon for each of the two-dimensional seismic data or the three-dimensional seismic data in a predetermined horizon, respectively, based on the seismic horizon interpretation for each of the plurality of horizon segments, the method further comprises:
and sequentially drawing a construction drawing of each level section in the plurality of level sections according to a preset display sequence of each level section in the plurality of level sections.
5. The method of claim 4, wherein a predetermined display order for each of the plurality of horizon segments is determined by predetermined survey requirements.
6. The method of any of claims 1 to 5, wherein the two-dimensional seismic data consists of an inverse fault or an unmasked fault and the three-dimensional seismic data consists of an inverse fault or an unmasked fault.
7. An apparatus for determining seismic horizons for a reverse fault region, comprising:
the seismic data acquisition module is used for acquiring two-dimensional seismic data or three-dimensional seismic data in a target work area;
a horizon segmentation module, configured to segment a preset horizon of the two-dimensional seismic data or the three-dimensional seismic data based on the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data to obtain a plurality of horizon segments, where the number of horizon segments is equal to the number of fault blocks in the two-dimensional seismic data or the three-dimensional seismic data, and the preset horizon of the two-dimensional seismic data adopts a segmented structure, where the segmented structure of the two-dimensional seismic data at least includes the following information: the method comprises the following steps of obtaining a position name of a preset position of the two-dimensional seismic data, a data number of the two-dimensional seismic data, an abscissa of the two-dimensional seismic data, an ordinate of the two-dimensional seismic data, and time or depth of the two-dimensional seismic data at the preset position, wherein the preset position of the three-dimensional seismic data adopts a segmented structure, and the segmented structure of the three-dimensional seismic data at least comprises the following information: the method comprises the following steps of obtaining three-dimensional seismic data, wherein the three-dimensional seismic data comprises a horizon name of a preset horizon of the three-dimensional seismic data, a data number of the three-dimensional seismic data, a transverse number of the three-dimensional seismic data, a longitudinal number of the three-dimensional seismic data, a transverse coordinate of the three-dimensional seismic data, a longitudinal coordinate of the three-dimensional seismic data, and time or depth of the three-dimensional seismic data at the preset horizon;
and the seismic horizon determining module is used for respectively determining the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in a preset horizon according to the seismic horizon interpretation result of each horizon section of the plurality of horizon sections.
8. The apparatus of claim 7, wherein the apparatus further comprises:
a two-dimensional seismic horizon determining module, configured to determine a seismic horizon of the two-dimensional seismic data in a preset horizon according to a seismic horizon interpretation result for each of the plurality of horizon sections, and determine a seismic horizon of the two-dimensional seismic data in the preset horizon according to a superposition condition of each of the horizon sections in a two-dimensional space when the two-dimensional seismic data is acquired;
and the three-dimensional seismic horizon determining module is used for determining the seismic horizon of the three-dimensional seismic data in the preset horizon according to the superposition condition of each horizon section in a three-dimensional space under the condition of acquiring the three-dimensional seismic data.
9. The apparatus of claim 7, wherein the apparatus further comprises:
and the seismic value determining module is used for determining the velocity value or the wave impedance value of each horizon section of the two-dimensional geological data or the three-dimensional seismic data in a preset horizon according to the seismic horizon interpretation result of each horizon section of the plurality of horizon sections after the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon is respectively determined, and according to the seismic horizon of each horizon section of the two-dimensional seismic data or the three-dimensional seismic data in the preset horizon.
10. The apparatus of claim 7, wherein the apparatus further comprises:
and the structure diagram drawing module is used for sequentially drawing the structure diagram of each horizon section in the plurality of horizon sections according to the preset display sequence of each horizon section in the plurality of horizon sections after the seismic horizon of each horizon section in the preset horizon of the two-dimensional seismic data or the three-dimensional seismic data is respectively determined according to the seismic horizon interpretation result of each horizon section in the plurality of horizon sections.
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