CN115471971A - Basin simulation phase data processing method and device and computer readable storage medium - Google Patents
Basin simulation phase data processing method and device and computer readable storage medium Download PDFInfo
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Abstract
The invention discloses a basin simulation phase data processing method, a device and a computer readable storage medium, wherein the method comprises the following steps: initializing a plurality of stratum data, storing the initialized stratum data of each layer into a plurality of copies, and corresponding to the participating simulation stage; in the simulation process: aiming at the current simulation stage, extracting and loading stratum data required by the corresponding current simulation stage from the stored stratum data, and performing superposition simulation based on a stratum simulation result completed by the previous simulation stage; during finite element calculation, assigning the related variables of the formation data participating in matrix calculation to a predefined temporary structure body, calculating, releasing the memory occupied by the current simulation stage, and assigning the related variables in the temporary structure body back to the current stage data after the calculation is completed; and after the current simulation stage is finished, respectively storing the simulation result of the full version and the simulation result of the simplified version of the current simulation stage.
Description
Technical Field
The invention relates to the field of software development of computer technology, in particular to a basin simulation phase data processing method and device and a computer readable storage medium.
Background
The basin simulation is based on a physicochemical geological mechanism, and the formation and evolution of the hydrocarbon-containing basin, the generation, migration and aggregation of hydrocarbons are quantitatively simulated by a computer in time and space so as to reveal the oil-gas regular nature of the basin.
Basin numerical simulation techniques have evolved very rapidly and have progressed very rapidly over the last decade. The widespread use of basin simulation techniques has led to the development of basin analysis towards quantification, dynamism, and mapping automation. Today basin simulation techniques have not only been an expressive form of geological processes, but also an indispensable means of studying various kinetic parameters. Thus, it is widely regarded by basin analysts and petrogeologists.
As a long-term technical problem, basin simulation faces difficulties and challenges in a plurality of aspects such as accurate solution of a simulation algorithm, consideration of geological factors such as fault and diagenesis, intermittent mutation process recovery of oil and gas migration, ancient hydrodynamic process reconstruction and the like. The method strengthens the application of three-dimensional geological attribute modeling and structural modeling technology, and implements sub-key-stage interactive simulation guided by an oil and gas migration and accumulation rule according with geological rules, thereby being the main direction for the development of basin simulation technology in future. In addition, the recent progress of the subjects of oil and gas geology, mathematical geology, computers and the like and the integration of new technologies into basin simulation also greatly promote the progress of the technology.
The degree of commercialization of foreign basin simulation software is high, such as temipack (french oil research institute), basemod (PlatteRiver, usa), petroMod (germany organic chemical research institute), and the like. Domestic basin simulation software is developed in the last 90 years and reaches a prosperity, and more than 10 kinds of relevant software are developed, such as BASIMS (China oil exploration and development institute), PRES (China sea oil research center), BIAS (in-situ ball software corporation), GEMDASS, PASS and the like. As for the overall level of basin simulation commercialized software, a gap exists between China and abroad, and continuous efforts are made to overcome the gap.
The domestic software has no software interface with two largest petroleum exploration and development software companies (GeoQuest and Landmark) in the world, so that basin simulation input data (seismic and well logging interpretation results) cannot be directly and automatically input from the GeoQuest or Landmark, and the efficiency and integrity of the input data are influenced. At present, the basin simulation system as a complete basin simulation system is organically composed of 6 models, namely a ground history model, a thermal history model, an diagenetic history model, a hydrocarbon generation history model, a hydrocarbon discharge history model (primary migration) and a hydrocarbon aggregation history model (secondary migration), and related documents are published in the No. 3 rd stage of 2009 of petroleum industry computer application in 'basin simulation technology reviewed and expedition in 30 years'. The basin simulation software system has one-dimensional, two-dimensional and three-dimensional systems, and the simulation research content not only covers the traditional five histories, namely the ground history, the thermal history, the hydrocarbon generation history, the hydrocarbon discharge history and the gathering history, but also adds a plurality of non-traditional research contents. The relevant documents are shown in the role of basin simulation technology in oil and gas resource evaluation, and published in the No. 6 of the Chinese oil exploration 2006.
In the basin simulation process, because the basin data volume is huge and the data storage and calculation aspects have large expenses, certain space and efficiency optimization needs to be carried out to meet the simulation requirements. The sum of data of each stage of basin simulation can reach hundreds of GB bytes, so that the method for storing and loading the data of the stage needs to be optimized as much as possible, the memory is ensured to be sufficient, and the data access efficiency is improved, which has important significance for basin simulation.
For example, in basin simulation, data of the same stratum may appear in multiple stages, and in the basin simulation initialization process, only the data of the same stratum needs to be initialized and stored as multiple copies, corresponding to multiple stages, so as to avoid initializing the stratum in each stage, which is not done in the prior art. Meanwhile, when a certain stage is simulated, data of other stages should be compressed and stored, otherwise, data of all stages cannot be accommodated simultaneously, when finite element calculation is carried out, due to high calculation space cost, the data of the current stage is preferably compressed and restored after calculation is completed, and the prior art does not well support the point. For different user requirements, if the result needs to be used in other computers, phase data storage in a file mode needs to be provided, for a situation that the result only needs to be checked in the local computer, only the phase data needs to be stored in a compressed memory mode to improve the reading speed, and the prior art does not consider the requirements.
Disclosure of Invention
The invention aims to provide a basin simulation phase data processing method, a basin simulation phase data processing device and a computer readable storage medium, which can reduce memory occupation and improve data acquisition efficiency.
In order to achieve the above object, the present invention provides a basin simulation phase data processing method, including: initializing a plurality of stacked stratum data forming a basin model, compressing each layer of stratum data after initialization and respectively storing the compressed stratum data as a plurality of parts, wherein each part corresponds to a participatory simulation stage;
starting stratum simulation of stages one by one, wherein the simulation of each simulation stage comprises the superposition simulation of newly added stratum data of the current simulation stage and the stratum data of the previous simulation stage;
in the simulation process:
aiming at the current simulation stage, extracting and loading stratum data required by the corresponding current simulation stage from the stored stratum data, and performing superposition simulation based on a stratum simulation result completed by the previous simulation stage;
the simulation stage comprises finite element calculation, when the finite element calculation is carried out, the related variables of the formation data participating in the matrix calculation are assigned to a predefined temporary structure body for calculation, the memory occupied by the current simulation stage is released, and the related variables in the temporary structure body are assigned back to the data of the current stage after the calculation is finished;
and after the current simulation stage is finished, respectively storing the simulation result of the full version and the simulation result of the simplified version of the current simulation stage, wherein the simulation result of the simplified version comprises data related to the display of the final result.
Optionally, each stratum data comprises point data and volume data, the point data comprises top surface point data and bottom surface point data, and two adjacent strata are provided, and the top surface point data of the lower stratum and the bottom surface point data of the upper stratum are shared repeated data; when loading data, the data is loaded only once for the common duplicate data.
As an alternative, a first cache and a second cache are defined, which are respectively used for storing the point data and the volume data required by the current simulation stage.
As an alternative, a first pointer variable and a second pointer variable are defined, in the simulation process, the first pointer variable is used for storing all point data and volume data which do not participate in the calculation in the current simulation stage, and the second pointer variable is used for storing data which do not participate in the calculation in the current simulation stage and are only relevant to the display of the final result.
As an alternative, after initialization, the method further comprises:
serializing all data of each stratum and serializing data variables related to a display result;
when a certain stratum is not the top layer in the current simulation stage, top surface point data of the stratum is not serialized; after serialization, each stratum data and the data variable related to the display result are respectively compressed and then stored in the corresponding simulation stage.
Alternatively, the storing in multiple copies comprises storing data in a file or storing data in a memory;
the storage in the file comprises that after the first file is stored, the other files are stored in a copying mode; the storing in the memory comprises storing the memory in which the first file is stored into pointer variables of other simulation stages after the first file is stored into the memory.
As an alternative, the way of storing the data in the file is: and writing data by using a non-cache mode in windows.
As an alternative, for the current simulation stage, after the formation simulation result completed by the previous simulation stage is assigned to the current simulation stage, the data of each formation of the previous simulation stage is released.
The present invention also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the above-described basin simulation phase data processing method.
The invention also provides a basin simulation phase data processing device, which comprises: at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the above-described basin simulation phase data processing method.
The invention has the beneficial effects that:
according to the method, when the stratum data of each layer is initialized, the stratum data of each layer is stored into multiple parts, so that the data of the stratum is prevented from being initialized at each stage; when a certain stage is simulated, superposition simulation is carried out based on the stratum simulation result completed in the previous simulation stage, and only the simulation data in the stage is loaded, so that the space is saved; during finite element calculation, assigning stratum data related variables participating in matrix calculation to a predefined temporary structural body, and emptying a memory in a current simulation stage to ensure the memory overhead of the matrix calculation; after the simulation is finished, only parameter variables related to the result are reserved so as to improve the reading speed of the result data; when checking the result, the switching simulation stage uses memory reuse to reduce the memory allocation time; and outputting the simulation calculation result of the compaction edition for direct viewing at a later time.
The present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a flow chart of a basin simulation phase data management method according to an embodiment of the invention;
FIG. 2 is a diagram of basin simulation phase data structures according to one embodiment of the present invention;
FIG. 3 is a diagram of a basin simulation phase data organization scheme according to an embodiment of the present invention;
FIG. 4 is a diagram of a basin simulation phase data storage and reading correlation interface according to an embodiment of the present invention;
FIG. 5 is an arrangement diagram of phase data compression formats according to an embodiment of the present invention;
FIG. 6 is a diagram of simulation phase data for a basin, in accordance with one embodiment of the present invention;
FIG. 7 is a diagram of data transfer between simulation phases according to an embodiment of the present invention;
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings and examples, so that how to apply technical means to solve technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Additionally, the steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
According to the basin simulation phase data management method, the implementation flow is a basin simulation phase data organization structure, basin simulation phase data storage and reading, data acquisition in and among the basin simulation phases, and phase data memory efficiency control in the basin simulation process.
The basin simulation phase data processing method comprises the following steps: initializing a plurality of stacked stratum data forming a basin model, compressing each layer of stratum data after initialization and respectively storing the compressed stratum data as a plurality of parts, wherein each part corresponds to a participatory simulation stage;
starting stratum simulation of stages one by one, wherein the simulation of each simulation stage comprises superposition simulation of newly added stratum data of the current simulation stage and stratum data of the previous simulation stage;
in the simulation process:
aiming at the current simulation stage, extracting and loading stratum data required by the corresponding current simulation stage from the stored stratum data, and performing superposition simulation based on a stratum simulation result completed by the previous simulation stage;
the simulation stage comprises finite element calculation, when the finite element calculation is carried out, the related variables of the formation data participating in the matrix calculation are assigned to a predefined temporary structure body for calculation, the memory occupied by the current simulation stage is released, and the related variables in the temporary structure body are assigned back to the data of the current stage after the calculation is finished;
and after the current simulation stage is finished, respectively storing the simulation result of the full version and the simulation result of the simplified version of the current simulation stage, wherein the simulation result of the simplified version comprises data related to the display of a final result.
In one embodiment, each stratum data comprises point data and volume data, wherein the point data comprises top surface point data and bottom surface point data, and the top surface point data and the bottom surface point data of the lower layer are repeated data in common; when loading data, the data is loaded only once for the common duplicate data.
In one embodiment, a first cache and a second cache are defined for storing the point data and the volume data required for the current simulation phase, respectively.
In one embodiment, a first pointer variable and a second pointer variable are defined, the first pointer variable is used for storing all point data and volume data which do not participate in calculation in the current simulation stage during simulation, and the second pointer variable is used for storing data which do not participate in calculation in the current simulation stage and are only relevant to display of a final result.
In one embodiment, after the initialization, the method further comprises:
serializing all data of each stratum and serializing data variables related to a display result;
when a certain stratum is not the top layer in the current simulation stage, top surface point data of the stratum is not serialized; after serialization, each stratum data and the data variable related to the display result are respectively compressed and then stored in the corresponding simulation stage.
In one embodiment, the storing in multiple copies includes storing data in a file or storing data in a memory;
the storage in the files comprises that after the first file is stored, the other files are stored in a copying mode; the storing in the memory comprises storing the memory in which the first file is stored into pointer variables of other simulation stages after the first file is stored into the memory.
In one embodiment, for the current simulation stage, after the formation simulation result completed in the previous simulation stage is assigned to the current simulation stage, the data of each formation in the previous simulation stage is released.
Fig. 1 is a flowchart of a basin simulation phase data processing method according to an embodiment of the present invention. With reference to FIG. 1:
step one, simulating a phase data organization structure by a basin;
step two, storing and reading basin simulation phase data;
thirdly, acquiring data in a basin simulation stage and data between stages;
and step four, controlling the efficiency of the data memory in the stage in the basin simulation process.
In the first step, the input basic data is a group of basin simulation phase data, and each phase data consists of an upper geological layer grid surface, a lower geological layer grid surface and a middle cube (cube) and represents a stratum. The simulation phase data specifically includes: top surface point data (topvertexes), bottom surface point data (botvertexes), volume data (cubes). The point data and volume data structures each contain a number of parametric variables representing geologic parameters associated with the formation layers and volumes in the basin simulation. The first variable, compresscache, and the second variable, compresscache mini, are used to store the phase data temporary compression that does not currently participate in the computation. The first cache vertexreuuse item and the second cache cupereuseitem are defined integrally and used for storing the memory space opened up by the current-stage data.
In the second step, in the basin simulation flow, when the stage is advanced, the previous stage data needs to be stored and the current stage data needs to be read, and in order to accelerate the storage and reading processes of the stage data, a series of memory and efficiency optimization methods are designed, which mainly comprise serialization, compression and decompression, storage and reading interfaces and storage and reading modes.
In the third step, in the basin simulation process, the simulation is performed stage by stage, the operations needed are also performed mainly by stage, and the method relates to reading all stratum data of the current stage, storing all stratum data of the previous stage, copying the stratum data of the previous stage to the same stratum of the current stage, and the like.
In the fourth step, for the phase data management in the basin simulation process, the following aspects are realized in a plurality of memories and efficiency control: and storing initial default data into each stage, only loading data of the stage required by current calculation, defining a simplified temporary structural body during finite element calculation, reusing a cache space during a result display switching stage, and outputting a mini version of a simulation result.
Compared with the prior art, the invention has the following advantages:
1. according to the method, basin simulation data of each stage are compressed, only stage data required by current calculation are loaded, various simplified data structures and memory reuse methods are provided, space overhead is reduced, and data acquisition efficiency is improved;
2. according to the method disclosed by the invention, the optimization of data acquisition modes in the basin simulation stage and between stages is realized, and the method has a value for improving the basin simulation space and efficiency.
The data processing method is described below in a specific embodiment.
Step S110
Firstly, step S110 is performed, the input basic data is a set of basin simulation phase data, and each phase data is composed of an upper geological horizon grid surface, a lower geological horizon grid surface and a middle cube (cube) and represents a stratum.
As shown in fig. 2, the upper and lower grids represent the top and bottom data of a formation at a certain simulation stage, and several cubes are formed between the upper and lower grids to represent the volume-related data of the formation. The simulation phase data specifically includes: top surface point data (topvertexes) such as e, f, g, h, bottom surface point data (botvertexes) such as a, b, c, d, volume data (cubes), wherein the top surface point data and the bottom surface point data have the same data structure. Each simulation phase data comprises a plurality of objects of the three data, and upper and lower stratum grids and intermediate data are formed. The point data and volume data structures each contain a number of parameter variables representing the geological parameters associated with the formation and volume in the basin simulation.
Because the variety of geological parameter variables is large, the size of a single point data and volume data object may exceed 1 Mbyte, the total size of one stage of data exceeds 100 Mbytes, hundreds of stages of data are corresponding to the total simulation process, and the total size exceeds dozens of GB bytes, the stage data which does not participate in the calculation currently needs to be temporarily compressed in the calculation process and stored by a first pointer variable, namely, the compressocache _ mini. Wherein, the compresscache stores all the point data and the data after volume data compression of the current simulation stage, and the compresscache _ mini stores the data after variable compression only relevant to the final result display in all the points and the volumes of the current simulation stage.
As shown in fig. 3, the strata are deposited continuously as the simulation phase advances in the whole basin simulation process, and each stratum corresponds to a phase data structure in each phase, so each simulation phase includes a set of phase data corresponding to a set of strata. The data structure of a geological horizon at a certain stage is shown in the lower left corner of the figure. In addition, when the final result is displayed, switching of each simulation stage is common operation, in order to avoid frequent application and release of a memory, a first cache vertexreusemem and a second cache vertesemem are integrally defined and used for storing a memory space created by current stage data.
Step S111
Next, step S111 is performed to store and read the analog phase data. In the basin simulation flow, when the stage is advanced, the data of the previous stage needs to be stored and the data of the current stage needs to be read, and in order to accelerate the process, a series of memory and efficiency optimization methods are designed.
1. Serialization
As shown in fig. 4, the basin simulation phase data is first serialized and serialized to recover, where serialization refers to arranging the parameter values in the data structure into a continuous memory form in sequence, and serialization recovery refers to recovering the continuous memory into the variable values of the parameter values in the data structure. Respectively serializing each point data and each volume data in the basin simulation phase data, wherein a serialization function is serilizedata, a mini-version serialization function is also provided, and only parameters related to the final result in the serialization structure body are displayed. The serialized recovery function is restoresistializata, in addition to restoresistializata _ mini, and only parameters in the recovery structure relevant to the display of the final result are restored.
2. Compression/decompression
After all the point data and the volume data are serialized, the data are combined and then compressed, and the compression function is compression and is realized by adopting a compression open source provided by the more common zlib. The corresponding decompression function uncompress represents the decompression of these compressed data back into the serialized point and volume data set.
The specific data structure arrangement of the compression process is shown in fig. 5, and the serialized collective data includes the number of top surface points, the number of bottom surface points, the number of volumes, the serialized data of each vertex, the serialized data of each bottom point, and the serialized data of each volume. When the stratum represented by the data of the stage is not the top layer at the current stage, the number of the top surface points is 0, and the top surface points are not serialized and are not put in a set. The reason for this is that the top and bottom surfaces of the strata adjacent above and below are common in each simulation stage, so only one copy needs to be present, i.e. all bottom surfaces and the top surface of the topmost layer are sufficient.
Compressing the point data and volume data set, and after the compression is successful, arranging the data as shown in the upper right part of the figure, wherein the data comprises the number of top surface points, the number of bottom surface points, the number of volume, a successful compression mark 0, the data length before the compression, the data length after the compression, the data after the compression and memory padding bytes; when the compression fails, the data arrangement is shown in the lower right part of the figure and comprises the number of top surface points, the number of bottom surface points, the number of volumes, a compression failure mark-1, serialized data of each top surface point, serialized data of each bottom surface point, serialized data of each volume and memory padding bytes.
For compressed data, two processing modes are provided, one is to store and read the compressed data through a file, and whether the compressed data is a mini-version serialized data is stored and read respectively through a filename with a mini suffix; the other is directly stored as a memory, namely, the compressed data is stored to the compresscache or the compresschmini of the phase data. For FILE storage and reading, non-cache mode FILE reading and writing in windows are used, the mode avoids memory increase during FILE reading and writing, when a relevant access interface is called, the parameter type is FILE _ FLAG _ NO _ BUFFERING, and in addition, the size of data accessed in the mode needs to be integral multiple of the size of a hard disk sector, such as integral multiple of 512K bytes, so that a part of bytes need to be filled in the compressed data according to the situation for completion; for the memory mode, the memory padding byte is empty.
The decompression is to judge whether the compression identification is successful or not according to the read data, if the compression identification is failed, the decompression is not needed, the data is directly uncompressed, if the compression identification is successful, the decompression is carried out, and the serialized point volume set data is obtained after the decompression.
3. Storage and read interface
Corresponding storage and reading operations are performed on the serialized and compressed data, as shown in the right side of fig. 4, and the related interfaces include storage, reading, multiple storage and the like.
The storage is divided into a single storage (savetofile, savetomultimedia) and a plurality of storages (savetomultimedia), because the same geologic horizon needs to be calculated in each simulation stage, for example, the bottommost layer appears in each stage, the second to last layer appears in each stage after the second stage begins, and the like. After some initial values are assigned to the phase data, a plurality of sets of data of one horizon are stored as the initial state of the horizon in each simulation phase. For a plurality of files, after the first file is stored, the rest files are directly copied; for the memory with a plurality of memories, after the first file is saved, the memory is also saved into the compresscache or the compresscachmini in other simulation stages. Parameters transmitted by savetofile comprise a stage, a layer and an ismini, wherein the ismini is used for distinguishing whether a mini version exists, a file corresponding to the samini correspondingly has a 'mini' suffix, and a corresponding memory is either compact or compact; parameters introduced by savetomultifile, savetomultimem include phase, layer.
Reading is divided into two types, namely, reading from a memory (loadfrommem) and reading from a file (loadfromfile), wherein the memory reading is reading from a compresscache or a compresscachmini, and the file reading is reading data from a file corresponding to phase data. The parameters introduced by loadfrommem, loadfromfile include stage, layer, ismini, reusemem, wherein ismini is used to distinguish whether it is mini version, and whether the file corresponding to it carries "_ mini" suffix, and the corresponding memory is either compresscache or compresschhini. The reusemem indicates whether two groups of cache vertexreuesemem and cubereuseemem are used, and when the reusemem is used, points generated after reading data and decompressing do not newly open a memory space, and vertexreueseemem and cubereuseemem are used. And judging whether the point and volume data exist or not in the reading process, and if so, directly returning to the reading process without reading.
Clearing the cache space (clearmemory) refers to clearing top point data (topvertexes), bottom point data (botvertexes), and volume data (cubes) of phase data to release the memory. Parameters introduced by clearmemory include phase, layer, reusemem. And when the reusemem is true, the memory cache is used, no operation is performed at the moment, and otherwise, the point volume data memory of the stratum corresponding to the corresponding stage is released.
In summary, the basin simulation segment data storage and reading interfaces have the following: savetomem, savetofile, savetomultimem, savetomultifile, loadfrommem, loadfromfile, clearmemory.
4. Storage and read mode
The storage and reading of the phase data have five modes, namely a memory mode, a file mode, a memory + file mode, an existing file mode and an existing file + memory mode. The interfaces for store and read calls in the various modes are shown in table 1.
TABLE 1
Wherein, the memory mode is to store the compressed phase data by using a compresscache and a compresscache _ mini; the file mode is that compressed phase data is stored by using files, file names of the compressed data of a mini version and a non-mini version are distinguished by judging whether a suffix of 'mini' is carried, each phase data corresponds to one file, the final phase data is stored in the files after basin simulation is finished, and then simulation results can be checked by directly using the files without basin simulation, so that multiple times of utilization are realized.
For example, when the read function is implemented, the interface called in table 1 calls loadfrommem first and then loadfromfile, so as to read from the memory first, and if the read from the file is not completed, then the conditional savetomem refers to the compact and compact _ mini that stores the data read from the file into the memory when the read from the memory is not completed, so that the data can be read later when the read from the memory is completed again. When the storage function is realized, savefile and savetomem are called, and the files and the memory are all saved.
The existing file mode and the existing file + memory mode refer to that the file corresponding to each stage of data already exists and is a final calculation result, namely, a basin simulation complete process is performed before and the result is stored or output as each stage of data file. At the moment, most calculation processes of basin simulation are skipped, and two functions of reading and clearing cache during final display are mainly called. Where the read function is similar to the file mode and the file + memory mode.
Step S112
In the basin simulation process, the simulation is carried out in one stage and one stage, the operations needed are also mainly carried out by taking the stage as a unit, and the method comprises the steps of reading all stratum data of the current stage, storing all stratum data of the previous stage, copying the stratum data of the previous stage to the same stratum of the current stage and the like.
The stratum data of a stage is shown in fig. 6, which shows the data of 4 strata at this stage, wherein the top surface of the stratum 1 and the bottom surface of the stratum 2 are common and coplanar, the top surface of the stratum 2 and the bottom surface of the stratum 3 are common and coplanar, and the top surface of the stratum 3 and the bottom surface of the stratum 4 are common and coplanar, the loading mode of the data of this stage is to load the data of 4 strata respectively, because the stratum 123 is not the top surface stratum, the data of the top surface is not loaded according to the previous rule, next, the top surface of the stratum 1 is assigned by the bottom surface of the stratum 2, the top surface of the stratum 2 is assigned by the bottom surface of the stratum 3, the top surface of the stratum 3 is assigned by the bottom surface of the stratum 4, the assignment is realized by using a pointer to refer, and the same memory is shared, thus realizing the loading of each stratum data.
During storage, the top surfaces of the non-top strata are not stored, and the common surface is stored only once. When the cache is cleared, the top surface of the non-top stratum only needs to clear the pointer, the memory pointed by the pointer does not need to be really released, and the top stratum only needs to clear the memory corresponding to the top surface.
Regarding the data transfer between the stages, a step transfer mechanism is adopted, as shown in fig. 7, as the stages advance, new strata are continuously deposited, existing strata are continuously sunk, and when the current stage is simulated, some data need to be acquired from the previous stage, that is, for the same strata, the data of the previous stage is assigned to the current stage, so as to complete the process of basin simulation. The specific method is that the stratum data of the stage is loaded according to the method, and then for each non-top stratum, the data is obtained from the upper stage on the left side, namely, the parameter values of the point and the volume data of the upper stage of the same stratum are assigned to the current stage. Then the cache is cleared of the strata of the previous stage.
Step S113
For phase data management in the basin simulation process, the following aspects are realized in a plurality of memories and efficiency control:
1. initial default data is stored to various stages
Initial layers have some default data to be used as initial values, and some default initial calling calculation functions need to be executed in advance, and as the same layer may appear in multiple stages, the same data needs to be generated and stored in multiple sets. In this case, the previous interfaces are used, and a plurality of sets of data are stored for one horizon as its initial state in each simulation stage. The same initial value assignment process and the same initial calling calculation function calling are avoided from being called for multiple times.
2. Loading only phase data required by current calculation
In the basin simulation process, when a certain stage is reached, the data of the current stage are loaded, the result of the previous stage is obtained from the same stratum on the left side, the value is assigned to the current stage, and the data of the previous stage is released. Other stage data which are not needed currently are stored as files or a memory is compressed, so that the memory overhead is saved. In addition, for the data in the same phase, the common plane part is only allocated with a memory once, and the upper and lower stratums share the common plane, so that the calculation result can be synchronously changed, and the memory space is saved.
3. Temporary structure body with reduced definition during finite element calculation
In the basin simulation process, a step is finite element matrix calculation, all point data are required to be combined to form a matrix, and the memory overhead of the matrix calculation is large, so that a simplified version point structural body vertex _ basic and a body structural body cube _ basic are defined and used for storing variables related to the matrix calculation. Firstly, all point data and volume data of the current stage are assigned to vertex _ basic and cube _ basic, then the memory of the current stage is released, and only the simplified version structure data of the current stage is left at this time. After the calculation is finished, the current stage data is loaded, and then the related variables in the vertex _ basic and the cube _ basic after the calculation are assigned back to the current stage data.
4. Using buffer space reuse during handover phase as result display
After basin simulation calculation is completed, result display is carried out, and the simulation stage is switched during common operation, so that stage data loading and memory cache clearing are frequently called. At this time, the vertexreusemem and cuberesemem defined before are used for storing the data of the current stage, a memory space does not need to be newly created each time, the memory space does not need to be really released when the memory cache is cleared, and the data acquisition speed is improved. The method comprises the steps that a vertexreusemem and a cuberesemem are a group of pointer objects which are respectively a point pointer and a body pointer, when new point data and new body data are needed each time, pointers are obtained from the vertexreusemem and the cuberesemem, and when the needed number is larger than the current number of the existing pointers, new pointer objects are added and added into the vertexreusemem and the cuberesemem.
5. Mini version output of simulation result
For the simulation result obtained by calculation, a simulation data output function is provided for facilitating subsequent reuse. The output calls the previous savetofile interface, the parameter ismini is true, and the output mini version is represented, that is, only variable data related to result display is output. The basin simulation can be performed next time by directly using the existing compressed file or the existing compressed file and using the compressed memory mode, and the concrete calculation of the basin simulation can be skipped at the moment, and the result display is directly performed.
Therefore, the basin simulation phase data management method is completed in the process.
According to the method, when the stratum data of each layer is initialized, the stratum data of each layer is stored into multiple parts, so that the data of the stratum is prevented from being initialized at each stage; when a certain stage is simulated, superposition simulation is carried out based on the stratum simulation result completed in the previous simulation stage, and only the simulation data in the stage is loaded, so that the space is saved; during finite element calculation, assigning stratum data related variables participating in matrix calculation to a predefined temporary structural body, and emptying a memory in a current simulation stage to ensure the memory overhead of the matrix calculation; after the simulation is finished, only parameter variables relevant to the result are reserved so as to improve the reading speed of the result data; when checking the result, the switching simulation stage uses memory reuse to reduce the memory allocation time; and outputting the simulation calculation result of the compaction version for direct viewing at a later time.
Another embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the above-described basin simulation phase data processing method.
A computer-readable storage medium according to an embodiment of the present disclosure has non-transitory computer-readable instructions stored thereon. The non-transitory computer readable instructions, when executed by a processor, perform all or a portion of the steps of the methods of the embodiments of the disclosure previously described.
The computer-readable storage media include, but are not limited to: optical storage media (e.g., CD-ROMs and DVDs), magneto-optical storage media (e.g., MOs), magnetic storage media (e.g., magnetic tapes or removable disks), media with built-in rewritable non-volatile memory (e.g., memory cards), and media with built-in ROMs (e.g., ROM cartridges).
An embodiment of the present invention further provides a device for processing basin simulation phase data, including: at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the above-described basin simulation phase data processing method. The memory is to store non-transitory computer readable instructions. In particular, the memory may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, etc.
The processor may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device to perform desired functions. In one embodiment of the disclosure, the processor is configured to execute the computer readable instructions stored in the memory.
Those skilled in the art should understand that, in order to solve the technical problem of how to obtain a good user experience, the present embodiment may also include well-known structures such as a communication bus, an interface, and the like, and these well-known structures should also be included in the protection scope of the present disclosure.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A basin model simulation phase data processing method is characterized by comprising the following steps:
initializing a plurality of stacked stratum data forming the basin model, compressing each layer of stratum data after initialization and respectively storing the compressed stratum data as a plurality of copies, wherein each copy corresponds to a participatory simulation stage;
starting stratum simulation of stages one by one, wherein the simulation of each simulation stage comprises the superposition simulation of newly added stratum data of the current simulation stage and the stratum data of the previous simulation stage;
in the simulation process:
aiming at the current simulation stage, extracting and loading stratum data required by the corresponding current simulation stage from the stored stratum data, and performing superposition simulation based on a stratum simulation result completed by the previous simulation stage;
the simulation stage comprises finite element calculation, when the finite element calculation is carried out, the related variables of the formation data participating in the matrix calculation are assigned to a predefined temporary structure body for calculation, the memory occupied by the current simulation stage is released, and the related variables in the temporary structure body are assigned back to the data of the current stage after the calculation is finished;
and after the current simulation stage is finished, respectively storing the simulation result of the full version and the simulation result of the simplified version of the current simulation stage, wherein the simulation result of the simplified version comprises data related to the display of the final result.
2. The basin simulation phase data processing method according to claim 1, wherein each formation data includes point data and volume data, the point data includes top surface point data and bottom surface point data, and two adjacent formations, the top surface point data of a lower layer and the bottom surface point data of an upper layer are common duplicated data; when loading data, the data is loaded only once for the common duplicate data.
3. The basin simulation phase data processing method according to claim 2, wherein a first cache and a second cache are defined for storing the point data and the volume data required for the current simulation phase, respectively.
4. The method for processing the data in the basin simulation phase according to claim 1, wherein a first pointer variable and a second pointer variable are defined, the first pointer variable is used for storing all point data and volume data which do not participate in the calculation in the current simulation phase during the simulation process, and the second pointer variable is used for storing data which do not participate in the calculation in the current simulation phase and are only relevant to the display of the final result.
5. The basin simulation phase data processing method according to claim 2, further comprising, after initialization:
serializing all data of each stratum and serializing data variables related to a display result;
when a certain stratum is not the top layer in the current simulation stage, top surface point data of the stratum is not serialized; after serialization, each stratum data and the data variable related to the display result are respectively compressed and then stored in the corresponding simulation stage.
6. The basin simulation phase data processing method according to claim 1, wherein the storing in multiple copies comprises storing data in a file or storing data in a memory;
the storage in the file comprises that after the first file is stored, the other files are stored in a copying mode; the storing in the memory comprises storing the memory in which the first file is stored into pointer variables of other simulation stages after the first file is stored into the memory.
7. The basin simulation phase data processing method according to claim 6, wherein the data is stored in a file by: and writing data by using a non-cache mode in windows.
8. The basin simulation phase data processing method according to claim 1, wherein, for a current simulation phase, after assigning a formation simulation result completed by a previous simulation phase to the current simulation phase, data of each formation of the previous simulation phase is released.
9. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the basin simulation phase data processing method according to any one of claims 1 to 8.
10. A basin simulation phase data processing apparatus, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the basin simulation phase data processing method of any one of claims 1-8.
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