CN107035365B - Method and device for distinguishing property of dolomite lithification fluid - Google Patents
Method and device for distinguishing property of dolomite lithification fluid Download PDFInfo
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Abstract
The embodiment of the application discloses a method and a device for distinguishing the property of dolomite lithified fluid, wherein the method comprises the following steps: acquiring attribute information of a target stratum core sample; preparing an experimental slice by using the core sample, and determining the structural attribute information and the luminescence characteristic information of the experimental slice; performing chemical analysis on the core sample to determine isotope information, trace element information and rare earth element information; respectively determining an identification plate according to the structure attribute information, the luminescence characteristic information, the isotope information, the trace element information and the rare earth element information of the experimental slice; and identifying the property of the dolomite lithified fluid of the target layer according to the identification layout. Comprehensive discrimination of the properties of the dolomitic petroliferous fluids can be achieved.
Description
Technical Field
The application relates to the technical field of petroleum and natural gas exploration, in particular to a method and a device for judging properties of dolomite lithification fluid.
Background
The research on the cause of the modern dolostone originates from the 50 th century, and the research on the cause of the dolostone not only has academic value but also has commercial value due to the oil-gas field taking the dolostone as a reservoir.
The core problem of the dolomitic process is the nature, source of the dolomitic fluid and the stage at which the dolomitic lithology takes place. The process of dolomitic lithology is also a process of exchanging geochemical information of rocks with fluids, and the dolomitic lithology fluids cause part of the geochemical information of the fluids to be captured by the rocks in the process of replacing original limestone, so that the properties of the dolomitic lithology fluids can be identified through geochemical analysis.
In the prior art, the property of the clouded fluid is generally judged by a rare earth element judgment mode, or the property of the clouded fluid is judged by Mg isotope analysis. The inventor finds that at least the following problems exist in the prior art: in the existing method for judging the property of the dolomite lithified fluid, two geochemical parameters of 1-2 are mainly used for analysis in a centralized mode to obtain the property of the dolomite lithified fluid, but the existing judging method is difficult to comprehensively reduce the dolomite process for the old dolomite with complex buried large diagenesis process, so that a method for comprehensively judging the property of the dolomite lithified fluid is urgently needed.
Disclosure of Invention
The embodiment of the application aims to provide a method and a system for judging the property of the dolomite lithified fluid so as to comprehensively judge the property of the dolomite lithified fluid.
In order to solve the above technical problem, an embodiment of the present application provides a method and a system for determining properties of a dolomite lithified fluid, which are implemented as follows:
a method for discriminating the property of dolomitic petrochemicals comprises the following steps:
acquiring attribute information of a target stratum core sample;
preparing an experimental slice according to the core sample, and determining the structural attribute information and the luminescence characteristic information of the experimental slice;
performing chemical analysis on the core sample to determine isotope information, trace element information and rare earth element information;
respectively determining an identification plate according to the structure attribute information, the luminescence characteristic information, the isotope information, the trace element information and the rare earth element information of the experimental slice;
and identifying the property of the dolomite lithified fluid of the target layer according to the identification layout.
In a preferred embodiment, the attribute information of the core sample includes at least one of the following: rock type, rock structure, rock formation characteristics.
Preferably, the structural attribute information of the experimental sheet includes: crystal size, degree of self-movement, degree of mirror-surface bending, inter-crystal contact relationship, and degree of original structure retention.
In a preferred scheme, the structural attribute information of the experimental slice is determined by using a binocular polarization microscope.
In a preferred embodiment, the light-emitting characteristic information includes: a light emission level; specifically, the light emission levels include: dark red, yellow-orange or red-orange.
In a preferred embodiment, the luminescence characteristic information of the experimental slice is determined by using a cathode luminescence microscope.
In a preferred embodiment, the chemically analyzing the core sample includes: carbon-oxygen isotope analysis, strontium isotope analysis, magnesium isotope analysis, and micro-area analysis.
In a preferred embodiment, the identification plate includes: carbon-oxygen isotope intersection diagram, oxygen-strontium isotope intersection diagram, magnesium isotope distribution diagram, trace element spider-web diagram and rare earth element distribution pattern diagram.
In a preferred embodiment, the identifying, according to the identification layout, properties of the dolomite lithification fluid of the target stratum includes: and determining the fluid property corresponding to the identification layout of the target layer according to the corresponding relation between the preset identification layout and the fluid property.
An apparatus for discriminating between properties of dolomitic fluid, comprising: a sample attribute information acquisition unit, an experimental sheet information acquisition unit, a sample analysis unit, an identification plate determination unit and a fluid property determination unit;
the sample attribute information acquisition unit is used for acquiring the attribute information of the target stratum core sample;
the experimental slice information acquisition unit is used for preparing an experimental slice according to the core sample and determining the structural attribute information and the light-emitting characteristic information of the experimental slice;
the sample analysis unit is used for carrying out chemical analysis on the rock core sample and determining isotope information, trace element information and rare earth element information;
the identification plate determining unit is used for respectively determining identification plates according to the structural attribute information, the luminescence characteristic information, the isotope information, the trace element information and the rare earth element information of the experimental slice;
and the fluid property determining unit is used for identifying the property of the dolomite lithified fluid of the target layer according to the identification layout.
According to the technical scheme provided by the embodiment of the application, the method and the system for distinguishing the property of the dolomite lithified fluid can obtain the domain for distinguishing the property of the dolomite lithified fluid with different structural types by utilizing the structural attribute information, the luminescence characteristic information and the chemical analysis of various parameters, so that the close combination of the petrology research and the geochemistry research is realized, and the comprehensive distinguishing of the property of the dolomite lithified fluid can be realized. Meanwhile, the property of the dolomitic fluid can be rapidly identified according to the structural attribute information and the luminescence characteristic information of the rock under the condition that the number of samples in the research area is small, and convenience in distinguishing the property of the dolomitic fluid is improved.
Drawings
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 one embodiment of a method for discriminating between properties of a dolomitic fluid of the present application;
FIG. 2 is a schematic diagram of a cross plot of carbon-oxygen isotope diagrams in Ordovician dolomite in a region according to an embodiment of the present application;
FIG. 3 is a schematic illustration of an oxygen-strontium isotope intersection of Ordovician dolomite in a region according to an embodiment of the present disclosure;
FIG. 4 is a schematic illustration of a magnesium isotope profile of Ordovician dolomite in a region according to an embodiment of the present disclosure;
FIG. 5 is a schematic representation of the spider-web diagram of trace elements of Ordovician dolomite in a region of an example of the present application;
FIG. 6 is a schematic diagram of a distribution pattern of rare earth elements in Ordovician dolomite in a certain area in an embodiment of the present application;
FIG. 7 is a block diagram of an embodiment of an apparatus for discriminating between properties of a dolomitic fluid according to the present application.
Detailed Description
The embodiment of the application provides a method and a system for judging properties of dolomite lithification fluid.
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.
FIG. 1 is a flow chart of one embodiment of a method for discriminating between properties of a dolomitic fluid of the present application. Referring to fig. 1, the method for discriminating the property of the dolomitic fluid may include the following steps.
S101: and acquiring the attribute information of the target stratum core sample.
The attribute information of the target stratum core sample can be obtained. The core sample has dimensions greater than 50 mm x 30 mm x 20 mm (length x width x height).
The attribute information of the core sample comprises: rock type, rock structure, rock formation characteristics, and the like.
The rock types may include: dolomitic, limestone, dolomitic or dolomitic limestone.
The rock structure may include: the color of the rock, the rock grain size, the rock homogeneity, etc. The uniformity of the color can be generally used to represent the uniformity of the rock composition, for example, if the rock uniformity is high, the rock can be massive; if the rock is less homogeneous, the rock may be cellular or lamellar.
The structural characteristics of the rock can be used to characterize the development of the rock. In particular, the formation characteristics of the rock may include: information on cracks of the rock, information on holes of the rock, information on scratches of the rock, and/or the like.
S102: and preparing an experimental slice by using the core sample, and determining the structural attribute information and the luminescence characteristic information of the experimental slice.
The core sample may be used to prepare an experimental slice. For example, the preparation of a test sheet of a predetermined thickness from the core sample may be performed. The predetermined thickness may be 0.3 mm. The test slides may be adhered to a glass slide using a heat resistant adhesive for testing and observation of the test slides.
The experimental slice can be prepared by using the rock of which the rock type is dolomite in the core sample.
The construction property information of the experimental slice can be determined using a binocular polarization microscope. The texture attributes can be used to characterize texture information of the samples in the experimental sheet.
The configuration attribute information of the experimental sheet may include: dolomite crystal size, degree of self-walking, degree of mirror bending, inter-crystal contact relationship, and degree of original structure retention.
The dolomite crystal size can be used to characterize the crystallization environment and rate of the dolomite crystals. In general, the dolomite crystal size can be divided into 7 grades, and table 1 shows the 7 grades of dolomite crystals and the crystal sizes of the grades. In general, the size of a crystal increases as the depth of the crystal environment increases.
TABLE 1
| Grade of crystal | Size of crystal |
| Mud crystal | <0.004 mm |
| Microcrystals | 0.004-0.03 mm |
| Powder crystal | 0.03 to 0.06 mm |
| Fine grains | 0.06-0.25 mm |
| Mesomorphism (Middling) | 0.25 to 0.5 mm |
| Coarse crystal | 0.5 to 2 mm |
| Giant crystal | >2 mm |
The luminescence characterization information of the experimental slide can be determined using a cathodoluminescence microscope. The light emission characteristic information includes: the light emission level. Specifically, the light emission level may include: dark red, yellow-orange or red-orange.
The luminescence level of the experimental slide can be determined using the cathodoluminescence microscope.
S103: and carrying out chemical analysis on the core sample to determine isotope information, trace element information and rare earth element information.
The performing chemical analysis on the core sample comprises: carbon-oxygen isotope analysis, strontium isotope analysis, magnesium isotope analysis, and micro-area analysis.
In particular, the core sample may be comminuted. The core sample may be crushed to 200 mesh. The crushed core sample may be greater than or equal to 20 grams in order to be sufficient for the experiment.
The crushed core sample may be subjected to carbon-oxygen isotope analysis, and a carbon-oxygen isotope cross plot of the core sample may be obtained. The specific carbon-oxygen isotope analysis method may be any one of the existing methods, and the present application does not limit the method.
Strontium isotope analysis can be performed on the crushed core sample, and an oxygen-strontium isotope intersection diagram of the core sample can be obtained. The specific strontium isotope analysis method may be any one of the existing methods, and the present application does not limit the method.
The crushed core sample can be subjected to magnesium isotope analysis, and a magnesium isotope distribution map of the core sample can be obtained. The specific method for analyzing magnesium isotope may be any one of the conventional methods, and the present application is not limited thereto.
Micro-area analysis can be performed on the crushed sample by using an electron probe (EMP) and an ion probe (SIMS), and the trace element information and the rare earth element information of the core sample can be obtained. For example, a distribution map of trace elements and a distribution map of rare earth elements can be obtained.
The trace elements may include: sodium (Na), potassium (K), strontium (Sr), iron (Fe), manganese (Mn), barium (Ba), zinc (Zn), silicon (Si), hafnium (Hf), and zirconium (Zr).
The rare earth elements may include: lanthanum (La), cerium (Ce), (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) and lutetium (Lu).
S104: and respectively determining an identification plate according to the structural attribute information, the luminescence characteristic information, the isotope information, the trace element information and the rare earth element information of the experimental slice.
The identification plate includes: a carbon-oxygen isotope intersection map, an oxygen-strontium isotope intersection map, a magnesium isotope distribution map, a trace element spider-web map, and/or a rare earth element distribution pattern map.
For example, in an application scenario, fig. 2 is a schematic diagram of a carbon-oxygen isotope map intersection map of a region of aodoku dolomite in an embodiment of the present application. Fig. 3 is a schematic diagram of an oxygen-strontium isotope intersection of aodoku dolomite in a certain region in an embodiment of the present application. Fig. 4 is a schematic diagram of a magnesium isotope distribution diagram of aodoku dolomitic rock in a certain region in an embodiment of the present application. Fig. 5 is a schematic diagram of a trace element spider diagram of aotao dolomite in a certain region in an embodiment of the present application. FIG. 6 is a schematic diagram of a distribution pattern of rare earth elements in Ordovician dolomite in a certain area in an embodiment of the present application; FIG. 6 shows (a) a rare earth element distribution pattern diagram in a strong seawater evaporation stage, (b) a rare earth element distribution pattern diagram in a weak seawater evaporation stage, (c) a rare earth element distribution pattern diagram in a formation hot brine stage, and (d) deep Mg-rich2+Rare earth distribution pattern diagram of hydrothermal stage.
S105: and identifying the property of the dolomite lithified fluid of the target layer according to the identification layout.
According to the identification layout, identifying the property of the dolomite lithification fluid of the target layer comprises the following steps: and determining the fluid property corresponding to the identification layout of the target layer according to the corresponding relation between the preset identification layout and the fluid property.
For example, referring to fig. 2-6 above, it may be determined that the dolomite fluid properties of the region in fig. 2-6 are divided into 4 phases: a dolomized fluid first stage, a dolomized fluid second stage, a dolomized fluid third stage, and a dolomized fluid fourth stage. Wherein the content of the first and second substances,
the first stage of the dolomized fluid is a strong seawater evaporation stage, and the properties of the fluid are as follows: the dolomite formed at the stage is straight-face semi-self-shaped mud powder crystal dolomite which is well preserved in an original particle or grain layer structure; no light or dark red light is emitted under the condition of cathode luminescence; delta13The distribution interval of C is-1.9-1.2%, and the average value is 0.46%; delta18The distribution interval of O is-7.2 to-4.3 percent; the average value is-4.78%, which is larger than the delta of normal ocean oxygen isotope sea water18O, the reaction fluid is affected by the evaporation,87Sr/86the Sr value is distributed between 0.70903 and 0.709104, the average value is 0.709682, the distribution is consistent with Sr isotope of ocean water of Ordovician, the Mg isotope value is distributed between-1.52 and-1 percent, the average value of Na element content is 1558.06 mu g/g (microgram/gram), the K element content is 767.1 mu g/g, the average value of Sr element content is 220.36 mu g/g, the average value of Fe element content is 93.24 mu g/g, the average value of Mn element content is 117.53 mu g/g, the contents of Zn, Ba, Si, Zr and Hf elements are lower, most of rare earth element distribution modes show more obvious negative anomalies of Ce element and Eu element, and the distribution mode is similar to the rare earth element distribution mode of modern seawater.
The second stage of the dolomization fluid is a weak seawater evaporation stage, and the properties of the fluid are as follows: the dolomite formed by the cross-substitution at the stage has poor original structure preservation, is straight-faced powder crystal or fine-grain dolomite, emits dark red or red under the action of cathode luminescence, and delta13The distribution interval of C is-2.75-0%, the average value is-1.21%, delta18The distribution interval of O is-8.91 to-3.6, the average value is-6.5 percent,87Sr/86the Sr value is distributed between 0.70895 and 0.709153, the average value is 0.709016 and is consistent with Sr isotopes of ocean water of Ordovician, the Mg isotope value is distributed between-2 and-1 percent, the average value of Na element content is 946.46 mug/g, the K element content is 439.2 mug/g, the average value of Sr element content is 180.59 mug/g, the average value of Fe element content is 114.95 mug/g, the average value of Mn element content is 131.58 mug/g, the contents of Zn, Ba, Si, Zr and Hf elements are lower, most of rare earth element distribution modes show more obvious negative anomalies of Ce element and modern element, and the distribution modes are similar to rare earth element distribution modes of ocean water.
The third stage of the dolomized fluid is a formation hot brine stage, and the properties of the fluid are as follows: the original structure of dolomite formed by the cross-substitution at the stage is basically completely lost, the crystal is mainly fine-mesomorphic, and is red or orange-red under the cathode luminescence, and delta13The distribution interval of C is-2.62-0%, the average value is-1.38%, delta18The distribution interval of O is-8.91 to-3.6 percent, the average value is-7.7 percent,87Sr/86the Sr value is 0.708897-0.70924, the average value is 0.70907, the Sr isotope is slightly higher than that of ocean water in Ordovician, the Mg isotope value is-1.5-0.7%, the average value of Na element content is 568.59 mug/g, the K element content is 327.56 mug/g, the average value of Sr element content is 157.77 mug/g, the average value of Fe element content is 432.21 mug/g, the average value of Mn element content is 133.54 mug/g, the Zn, Ba, Si, Zr and Hf element contents are lower, the Ce element negative abnormality and the Eu element weak positive abnormality are shown in the rare earth element distribution mode, and the cloud effect is reflected to occur in a high-temperature environment.
The fourth stage of the dolomization fluid is rich in Mg in the deep part2+Hydrothermal stage, fluid properties were as follows: the original structure of dolomite formed at this stage is completely lost, the crystal is mainly curved surface medium-coarse crystal, and it is red or orange yellow under cathode luminescence, delta13The distribution interval of C is-0.6-0.97%, the average value is-0.93%, delta18The distribution interval of O is-10.45 to-8.2 percent, the average value is-9.73 percent,87Sr/86the Sr value is distributed between-0.78977 and-0.71038, the average value is 0.70952, the Sr isotope is obviously higher than that of the ocean water Sr isotope, the Mg isotope value is distributed between-0.6 and-0.4 percent, and the Na containsThe average value of the amount is 210.85 mu g/g, the content of K element is 104.25 mu g/g, the average value of Sr element is 38.52 mu g/g, the average value of Fe element is 1102.25 mu g/g, the average value of Mn element is 545.25 mu g/g, the contents of Zn, Ba, Si, Zr and Hf elements are obviously increased, the rare earth element distribution mode shows obvious Eu element positive abnormality, and the cross substitution of the clouded fluid is reflected to occur in the environment with higher temperature.
According to the method for distinguishing the property of the dolomite lithified fluid, provided by the embodiment, the domain of recognition of the property of the dolomite lithified fluid with different structural types can be obtained by utilizing the structural attribute information, the luminescence characteristic information and the chemical analysis of various parameters, so that the close combination of the petrology research and the geochemistry research is realized, and the comprehensive distinguishing of the property of the dolomite lithified fluid can be realized. Meanwhile, the property of the dolomitic fluid can be rapidly identified according to the structural attribute information and the luminescence characteristic information of the rock under the condition that the number of samples in the research area is small, and convenience in distinguishing the property of the dolomitic fluid is improved.
The application also provides a device for judging the property of the dolomite lithified fluid.
FIG. 7 is a block diagram of an embodiment of an apparatus for discriminating between properties of a dolomitic fluid according to the present application. Referring to fig. 7, the apparatus may include: a sample attribute information acquisition unit 701, an experimental sheet information acquisition unit 702, a sample analysis unit 703, a recognition plate determination unit 704, and a fluid property determination unit 705.
The sample attribute information acquiring unit 701 may be configured to acquire attribute information of a core sample of a target formation. The attribute information of the core sample comprises: rock type, rock structure, rock formation characteristics, and the like.
The rock types may include: dolomitic, limestone, dolomitic or dolomitic limestone.
The rock structure may include: the color of the rock, the rock grain size, the rock homogeneity, etc.
The formation characteristics of the rock may include: information on cracks of the rock, information on holes of the rock, information on scratches of the rock, and/or the like.
The experimental slice information acquiring unit 702 may be configured to prepare an experimental slice according to the core sample, and determine configuration attribute information and luminescence characteristic information of the experimental slice. The predetermined thickness may be 0.3 mm.
The configuration attribute information of the experimental sheet may include: dolomite crystal size, degree of self-walking, degree of mirror bending, inter-crystal contact relationship, and degree of original structure retention.
The light emission characteristic information includes: the light emission level. Specifically, the light emission level may include: dark red, yellow-orange or red-orange.
The sample analysis unit 703 may be configured to perform chemical analysis on the core sample to determine isotope information, trace element information, and rare earth element information. The performing chemical analysis on the core sample comprises: carbon-oxygen isotope analysis, strontium isotope analysis, magnesium isotope analysis, and micro-area analysis.
The identification plate determining unit 704 may be configured to determine the identification plates according to the structural attribute information, the luminescence characteristic information, the isotope information, the trace element information, and the rare earth element information of the experimental slice, respectively. The identification plate includes: a carbon-oxygen isotope intersection map, an oxygen-strontium isotope intersection map, a magnesium isotope distribution map, a trace element spider-web map, and/or a rare earth element distribution pattern map.
The fluid property determination unit 705 may be configured to identify, according to the identification layout, a property of a dolomite lithified fluid of a destination layer.
The device for determining the property of the dolomite lithified fluid provided by the embodiment corresponds to the embodiment of the method for determining the property of the dolomite lithified fluid, so that the embodiment of the method can be realized, and the technical effect of the embodiment of the method can be obtained.
In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose Logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate a dedicated integrated circuit chip 2. Furthermore, nowadays, instead of manually making an Integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as abel (advanced Boolean Expression Language), ahdl (alternate Language Description Language), traffic, pl (core unified Programming Language), HDCal, JHDL (Java Hardware Description Language), langue, Lola, HDL, laspam, hardbyscript Description Language (vhr Description Language), and the like, which are currently used by Hardware compiler-software (Hardware Description Language-software). It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.
The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic for the memory.
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 thus be considered 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 systems, devices, modules or units illustrated 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 units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
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. With this understanding in mind, the present solution, or portions thereof that contribute to the prior art, may be embodied in the form of a software product, which in a typical configuration includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The computer software product may include instructions for causing a computing device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in the various embodiments or portions of embodiments of the present application. The computer software product may be stored in a memory, which may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium. Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transient media), such as modulated data signals and carrier waves.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
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 consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
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, 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.
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 (8)
1. A method for discriminating a property of a dolomitic petroliferous fluid, comprising:
acquiring attribute information of a target stratum core sample;
preparing an experimental slice by using the core sample, and determining the structural attribute information and the luminescence characteristic information of the experimental slice;
performing chemical analysis on the core sample to determine isotope information, trace element information and rare earth element information;
respectively determining an identification plate according to the structure attribute information, the luminescence characteristic information, the isotope information, the trace element information and the rare earth element information of the experimental slice;
according to the identification chart, identifying the property of the dolomite lithification fluid of the target layer; wherein the identifying, from the identification plate, the dolomite lithification fluid properties of the destination layer comprises: determining the property of the dolomite lithified fluid corresponding to the identification plate of the target layer according to the corresponding relation between the preset identification plate and the property of the fluid;
wherein the identification plate comprises: carbon-oxygen isotope intersection diagram, oxygen-strontium isotope intersection diagram, magnesium isotope distribution diagram, trace element spider-web diagram and rare earth element distribution pattern diagram.
2. The method of claim 1, wherein the attribute information of the core sample comprises at least one of: rock type, rock structure, rock formation characteristics.
3. The method of claim 1, wherein the configuration attribute information of the experimental slice comprises: crystal size, degree of self-movement, degree of mirror-surface bending, inter-crystal contact relationship, and degree of original structure retention.
4. The method of claim 1, wherein the configuration property information of the experimental slice is determined using a binocular polarization microscope.
5. The method according to claim 1, wherein the lighting characteristic information includes: a light emission level; specifically, the light emission levels include: dark red, yellow-orange or red-orange.
6. The method of claim 1, wherein the luminescence signature information of the test slide is determined using a cathodoluminescence microscope.
7. The method as recited in claim 1, wherein the performing chemical analysis on the core sample comprises: carbon-oxygen isotope analysis, strontium isotope analysis, magnesium isotope analysis, and micro-area analysis.
8. An apparatus for discriminating a property of a dolomitic fluid, comprising: a sample attribute information acquisition unit, an experimental sheet information acquisition unit, a sample analysis unit, an identification plate determination unit and a fluid property determination unit;
the sample attribute information acquisition unit is used for acquiring the attribute information of the target stratum core sample;
the experimental slice information acquisition unit is used for preparing an experimental slice according to the core sample and determining the structural attribute information and the light-emitting characteristic information of the experimental slice;
the sample analysis unit is used for carrying out chemical analysis on the rock core sample and determining isotope information, trace element information and rare earth element information;
the identification plate determining unit is used for respectively determining identification plates according to the structural attribute information, the luminescence characteristic information, the isotope information, the trace element information and the rare earth element information of the experimental slice;
the fluid property determination unit is used for identifying the property of the dolomite lithified fluid of the target layer according to the identification plate; wherein the identifying, from the identification plate, the dolomite lithification fluid properties of the destination layer comprises: determining the property of the dolomite lithified fluid corresponding to the identification plate of the target layer according to the corresponding relation between the preset identification plate and the property of the fluid;
wherein the identification plate comprises: carbon-oxygen isotope intersection diagram, oxygen-strontium isotope intersection diagram, magnesium isotope distribution diagram, trace element spider-web diagram and rare earth element distribution pattern diagram.
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