CN113376688A - Variable-inclination angle modeling stratum structure analysis system, method and device - Google Patents
Variable-inclination angle modeling stratum structure analysis system, method and device Download PDFInfo
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Abstract
The invention provides a variable-inclination angle modeling stratum structure analysis system, method and device, wherein the system comprises: the control unit is used for: determining a target shaping stratum inclination angle, a target deformation stress and construction parameters of a shaping stratum experimental model; three-dimensional reconstruction is carried out on the surface data of the shaping stratigraphic structure, the shaping stratigraphic structure is identified, and the attribute data of the shaping stratigraphic structure is extracted; the modeling stratum experimental model construction unit is used for constructing a modeling stratum experimental model according to construction parameters of the modeling stratum experimental model; the shaping stratum deformation simulation model construction unit is used for adjusting the inclination angle of the shaping stratum experiment model to a target shaping stratum inclination angle through the rotation angle adjuster, and loading target deformation stress on the adjusted shaping stratum experiment model to obtain a shaping stratum deformation simulation model; and the scanning unit is used for scanning the modeling stratum deformation simulation model and generating surface data of the modeling stratum structure. The invention has high accuracy.
Description
Technical Field
The invention relates to the field of petroleum geological exploration, in particular to a variable-inclination angle modeling stratum structure analysis system, method and device.
Background
With the continuous deepening of oil and gas exploration degree, the modeling stratum structure analysis becomes one of the current hot problems of oil and gas-containing basin structure research, and the continuous increase of oil and gas requirements stimulates the research on the modeling stratum structure analysis. The research on the development process and the spatial change rule of the shaping stratum structure directly influences the effective identification of the shaping stratum structure.
In the prior art, a great deal of beneficial research is carried out on the formation of a shaping stratum structure through a physical simulation experiment. In the prior art, quartz sand and polymerized silicone resin are used as materials to simulate a plastic stratum structure of a front land fold breaking belt and to simulate a plastic stratum piercing type plastic stratum structure. The anterior basin is also found to be a deformation mechanism for fault-related folds. With the development of numerical simulation technology, methods for influencing the formation of the shaped formation diapir by driving force factors such as lateral extrusion, buoyancy and the like through simulation experiments also appear in succession. Beginning in 1955, physical simulations of the penetrated granular and fluid overburden were believed to have a greater effect on formation diaphragmatic growth than depletion of the source-forming formation. The formation of a shaped formation is believed by the scholars to be influenced by the settlement and strength of the overburden. In addition, quartz and solid paraffin are also adopted in the prior art to simulate a shaped stratum, and the method emphasizes the extension of the shaped stratum and expands the range of the structure of the shaped stratum. The prior art also appears to use SGM polymers as the source shaping formation and glass beads as the overburden to simulate deformation of the shaping formation. The formation of the shaped formation dunes is closely related to the thickness of the overlying shaped formation. In the prior art, a plasticized rosin with a proper proportion is adopted to simulate a rock ring ductile layer, a plastic flow propagation process under a boundary driving condition is researched, and physical simulation of plastic stratum structure deformation is realized. However, the prior art still has the following three problems: firstly, the mechanism of deformation of the plastic stratum structure is not known and corresponding experimental methods and devices are lacked, gravity tension, differential load, lateral extrusion and the like are all the power for forming the plastic stratum structure, but no good solution is provided for accurately judging the forming mechanism and performing differential research; secondly, the flowing and deformation conditions of the shaping stratum under variable angles cannot be simulated; thirdly, the physical simulation experiment is greatly influenced by the outer boundary of the sand box, the external observation deformation is different from the internal observation deformation, and the real deformation characteristic is difficult to reflect. The three problems all cause the physical simulation experiment result of the shaping stratum structure to be inaccurate, so that the obtained analysis result of the shaping stratum structure is inaccurate.
Disclosure of Invention
The embodiment of the invention provides a variable-inclination angle modeling stratum structure analysis system, which is used for analyzing a modeling stratum structure to obtain attribute data of a modeling stratum structure body and has high accuracy, and the system comprises:
a modeling stratum deformation simulation model construction unit, a modeling stratum experiment model construction unit, a scanning unit and a control unit, wherein,
the shaping formation deformation simulation model construction unit comprises an angle regulator;
the control unit is used for: determining a target shaping stratum inclination angle, a target deformation stress and a construction parameter of a shaping stratum experimental model according to the post-stack seismic data, the logging data and the geological background information of the target area; receiving surface data of the shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure; identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure, and extracting attribute data of the plastic stratum structure body;
the modeling stratum experimental model construction unit is used for constructing a modeling stratum experimental model according to construction parameters of the modeling stratum experimental model;
the shaping stratum deformation simulation model construction unit is used for adjusting the inclination angle of the shaping stratum experiment model to a target shaping stratum inclination angle through the rotation angle adjuster, and loading target deformation stress on the adjusted shaping stratum experiment model to obtain a shaping stratum deformation simulation model;
and the scanning unit is used for scanning the modeling stratum deformation simulation model, generating surface data of a modeling stratum structure and sending the surface data to the control unit.
The embodiment of the invention provides a variable-inclination angle modeling stratum structure analysis method, which is used for analyzing a modeling stratum structure to obtain attribute data of a modeling stratum structure and has high accuracy, and the method comprises the following steps:
determining a target shaping stratum inclination angle, a target deformation stress and construction parameters of a shaping stratum experimental model according to post-stack seismic data, logging data and geological background information of a target area, wherein the construction parameters of the shaping stratum experimental model are used for constructing the shaping stratum experimental model;
obtaining surface data of a shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure, wherein the surface data is obtained by scanning a shaping stratum deformation simulation model, and the shaping stratum deformation simulation model is obtained by loading a target deformation stress on an experimental model of the shaping stratum based on a target shaping stratum inclination angle;
the molded stratigraphic structure is identified from the three-dimensional data volume of the molded stratigraphic structure, and the attribute data of the molded stratigraphic structure is extracted.
The embodiment of the invention provides a variable-inclination angle modeling stratum structure analysis method, which is used for analyzing a modeling stratum structure to obtain attribute data of a modeling stratum structure body and has high accuracy, and the device comprises:
the data acquisition module is used for determining a target shaping stratum inclination angle, a target deformation stress and construction parameters of a shaping stratum experimental model according to post-stack seismic data, logging data and geological background information of a target area, wherein the construction parameters of the shaping stratum experimental model are used for constructing the shaping stratum experimental model;
the three-dimensional data body obtaining module is used for obtaining surface data of the shaping stratum structure, carrying out three-dimensional reconstruction on the surface data of the shaping stratum structure and obtaining a three-dimensional data body of the shaping stratum structure, wherein the surface data is obtained by scanning a shaping stratum deformation simulation model, and the shaping stratum deformation simulation model is obtained by loading target deformation stress on an experimental model of the shaping stratum based on a target shaping stratum inclination angle;
and the analysis module is used for identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure and extracting the attribute data of the plastic stratum structure body.
The embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the above method for analyzing a variable-dip-angle shaped stratigraphic structure.
Embodiments of the present invention also provide a computer-readable storage medium storing a computer program for executing the above method for analyzing a variable-dip shaped formation.
In the embodiment of the invention, the system comprises a shaping stratum deformation simulation model construction unit, a shaping stratum experimental model construction unit, a scanning unit and a control unit, wherein the shaping stratum deformation simulation model construction unit comprises an angle regulator; the control unit is used for: determining a target shaping stratum inclination angle, a target deformation stress and a construction parameter of a shaping stratum experimental model according to the post-stack seismic data, the logging data and the geological background information of the target area; receiving surface data of the shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure; identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure, and extracting attribute data of the plastic stratum structure body; the modeling stratum experimental model construction unit is used for constructing a modeling stratum experimental model according to construction parameters of the modeling stratum experimental model; the shaping stratum deformation simulation model construction unit is used for adjusting the inclination angle of the shaping stratum experiment model to a target shaping stratum inclination angle through the rotation angle adjuster, and loading target deformation stress on the adjusted shaping stratum experiment model to obtain a shaping stratum deformation simulation model; and the scanning unit is used for scanning the modeling stratum deformation simulation model, generating surface data of a modeling stratum structure and sending the surface data to the control unit. The target moulding stratum inclination angle, the target deformation stress and the construction parameters of the moulding stratum experimental model are accurately determined by the post-stack seismic data, the logging data and the geological background information of the target area, and the constructed moulding stratum experimental model has high precision; the angle regulator enables the moulding stratum experimental model to be adjusted to a target moulding stratum inclination angle, so that the flowing and deformation conditions of the moulding stratum under a variable angle can be simulated, and an accurate moulding stratum deformation simulation model is obtained; by scanning the modeling stratum deformation simulation model, the three-dimensional data body of the modeling stratum structure containing the accurate internal result can be obtained, so that the identified modeling stratum structure is high in accuracy from the three-dimensional data body of the modeling stratum structure containing the accurate internal result, and the finally extracted attribute data of the modeling stratum structure is high in accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
FIG. 1 is a schematic diagram of a variable dip angle modeling stratigraphic configuration analysis system in an embodiment of the present invention;
FIG. 2 is a detailed flow chart of a modeling stratigraphic configuration analysis using a variable dip modeling stratigraphic configuration analysis system in accordance with an embodiment of the present invention;
FIG. 3 is a schematic seismic section of a shaped stratigraphic configuration in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a modeled formation experiment model in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a scanning position of a scanning unit for scanning a modeling formation deformation simulation model by using a CT scanning method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the corresponding plane data of FIG. 5 in an embodiment of the present invention;
FIG. 7 is a schematic diagram of the evolution process of the formation modeling in the embodiment of the present invention;
FIG. 8 is a flow chart of a method for variable dip modeling formation analysis in accordance with an embodiment of the present invention;
FIG. 9 is a flow chart of a method for variable dip modeling stratigraphic configuration analysis in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description of the present specification, the terms "comprising," "including," "having," "containing," and the like are used in an open-ended fashion, i.e., to mean including, but not limited to. Reference to the description of the terms "one embodiment," "a particular embodiment," "some embodiments," "for example," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the embodiments is for illustrative purposes to illustrate the implementation of the present application, and the sequence of steps is not limited and can be adjusted as needed.
Fig. 1 is a schematic diagram of a variable dip angle modeling stratigraphic configuration analysis system according to an embodiment of the present invention, as shown in fig. 1, the system comprising:
a modeling stratum deformation simulation model construction unit, a modeling stratum experiment model construction unit, a scanning unit and a control unit, wherein,
the shaping formation deformation simulation model construction unit comprises an angle regulator;
the control unit is used for: determining a target shaping stratum inclination angle, a target deformation stress and a construction parameter of a shaping stratum experimental model according to the post-stack seismic data, the logging data and the geological background information of the target area; receiving surface data of the shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure; identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure, and extracting attribute data of the plastic stratum structure body;
the modeling stratum experimental model construction unit is used for constructing a modeling stratum experimental model according to construction parameters of the modeling stratum experimental model;
the shaping stratum deformation simulation model construction unit is used for adjusting the inclination angle of the shaping stratum experiment model to a target shaping stratum inclination angle through the rotation angle adjuster, and loading target deformation stress on the adjusted shaping stratum experiment model to obtain a shaping stratum deformation simulation model;
and the scanning unit is used for scanning the modeling stratum deformation simulation model, generating surface data of a modeling stratum structure and sending the surface data to the control unit.
In the embodiment of the invention, the target moulding stratum inclination angle, the target deformation stress and the construction parameters of the moulding stratum experimental model are accurately determined by the post-stack seismic data, the logging data and the geological background information of the target area, and the constructed moulding stratum experimental model has high precision; the angle regulator enables the moulding stratum experimental model to be adjusted to a target moulding stratum inclination angle, so that the flowing and deformation conditions of the moulding stratum under a variable angle can be simulated, and an accurate moulding stratum deformation simulation model is obtained; by scanning the modeling stratum deformation simulation model, the three-dimensional data body of the modeling stratum structure containing the accurate internal result can be obtained, so that the identified modeling stratum structure is high in accuracy from the three-dimensional data body of the modeling stratum structure containing the accurate internal result, and the finally extracted attribute data of the modeling stratum structure is high in accuracy.
In specific implementation, the shaping stratum can be a mud rock stratum, a shale stratum, a salt layer and the like, the three-dimensional post-stack seismic data can be loaded into professional software such as landmark, Geoeast and the like, data such as the stratum and the shaping stratum are obtained through interpretation, logging data (such as logging las and curves) are loaded into professional logging software such as Geolol and the like, and the logging response characteristics of the shaping stratum structure are obtained through recognition. And then, determining the target deformation stress and the construction parameters of the experimental model of the shaping stratum according to the data. The well log data may specifically include at least one of: acoustic curve, density curve, and gamma curve. And the target shaping stratigraphic dip can be obtained by utilizing trigonometric function relation calculation according to the seismic section characteristics.
In one embodiment, the configuration parameters of the model for modeling the formation experiment include one or any combination of model boundaries, physical simulation model similarity ratio, physical simulation duration similarity ratio, simulated formation material and simulated modeling formation material.
The specific process of determining the construction parameters of the model for modeling the stratum experiment according to the post-stack seismic data, the logging data and the geological background information of the target area is as follows:
firstly, determining the geological age of a shaping stratigraphic structure, the forming time of the shaping stratigraphic structure, deformation stress, evolution and recovery conditions of the shaping stratigraphic structure according to geological background information of a target area; then determining the similarity ratio of the physical simulation time length according to the address age of the molded stratum structure and the forming time of the molded stratum structure; according to the stratum expansion and contraction rate, the ancient stratum and the current stratum can be compared according to the structural evolution and recovery, and the stratum expansion and contraction rate is calculated.
And determining the position, the thickness and the development scale of the moulding stratum structure in the transverse direction and the longitudinal direction according to the post-stack seismic data and the logging data of the target area, thereby determining the model boundary and the similarity ratio of the physical simulation model together with the stratum expansion and contraction rate. The physical simulation model similarity ratio comprises the physical simulation similarity ratio of a plurality of parameters such as model size, thickness, density, gravity acceleration, viscosity, time, power similarity parameter and the like.
The simulated formation materials generally used in the modeling formation structure analysis mainly include various-particle-size micro glass beads, carborundum, PVC powder, clay, silicon powder, aluminum powder, kaolinite powder, graphite lead and the like, and sometimes some mixed materials are used according to needs. For example, quartz sand may be used as the simulated formation material. The simulated modeling stratum material commonly used in modeling stratum structure analysis comprises a granular experimental material and a plastic material, wherein the granular experimental material mainly comprises clay, polydimethylsiloxane, honey, silica gel putty and the like; plastic materials include gypsum formations and sliding layers, among others. In order to obtain better simulation of the flowability of the molded stratum, the silica gel with lower viscosity can be used as the material for simulating the molded stratum, namely, the viscosity of the silica gel can be optionally adjusted according to the flowability requirement.
After the construction parameters of the shaping stratum experimental model are determined, the shaping stratum experimental model construction unit constructs the shaping stratum experimental model according to the construction parameters of the shaping stratum experimental model.
Then, the shaping formation deformation simulation model construction unit adjusts the inclination angle of the shaping formation experiment model to a target shaping formation inclination angle through the rotation angle adjuster, and loads a target deformation stress on the adjusted shaping formation experiment model to obtain the shaping formation deformation simulation model. In one embodiment, the deformation stress includes gravity and target overburden differential deposition natural forces;
the shaping stratum experimental model construction unit further comprises an automatic sand distribution device, and the automatic sand distribution device is used for overlaying differential deposition natural force on the adjusted loading target of the shaping stratum experimental model.
In the above embodiment, the gravity and the target overburden differential deposition natural force can simulate the flow and deformation of the shaped formation when the mountain making belt is lifted, the shaped formation flows under the action of the gravity after the inclination angle of the shaped formation experimental model is adjusted to the target shaped formation inclination angle, and at this time, in order to simulate the deposition characteristic, the target overburden differential deposition natural force is loaded on the adjusted shaped formation experimental model by using an automatic sand distribution device.
In one embodiment, the automatic sanding device is specifically configured to: adjusting the current overlying differential deposition natural force to the target overlying differential deposition natural force by adjusting at least one of the following parameters:
speed, position, frequency, thickness of the sanding.
Compared with manual sand distribution, the automatic sand distribution device is higher in automation efficiency.
After the modeling stratum deformation simulation model is constructed, the modeling stratum deformation simulation model is scanned by the scanning unit, surface data of a modeling stratum structure are generated and sent to the control unit, wherein the scanning unit can adopt a CT scanning mode or a nuclear magnetic resonance mode, a dynamic monitoring scanning position and scanning frequency can be set according to research needs and precision requirements, the more surface data are obtained through the scanning unit, and finally the higher the modeling stratum structure precision is. The specific scanning process may be as follows:
s1: setting different scanning frequencies according to the research precision requirement;
s2: placing the scanning position of the moulding stratum deformation simulation model under a scanning unit;
s3: pushing the plastic stratum deformation simulation model into a scanning unit at a constant speed, and scanning different surfaces of the plastic stratum deformation simulation model to obtain continuous surface data at equal intervals;
s4: and sending the plane data to a control unit.
And finally, receiving the surface data of the shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure. The three-dimensional data body of the shaping stratum structure is convenient for the omnibearing identification of the shaping stratum deformation simulation model and the quantification research of the attributes of the shaping stratum mound. And (3) carrying out three-dimensional reconstruction on the surface data of the shaping stratigraphic structure, namely, constructing unknown surface data (surface data between two groups of adjacent surface data) by scanning the obtained known surface data, and finally recombining all the surface data to form the three-dimensional data body of the shaping stratigraphic structure. The reconstruction method such as difference can be implemented by software or other computer equipment. Three-dimensional reconstruction is carried out on the surface data of the shaping stratum structure by adopting a difference method, namely, the surface data between two groups of adjacent surface data (for example, two gray scanning images) is obtained by difference by adopting a mathematical method such as Gaussian difference and the like. And (3) performing three-dimensional reconstruction on the surface data of the molded stratum structure by adopting a fitting method, namely fitting the forms of other surface data according to the change rule of the surface data through certain known surface data to obtain the unknown surface data.
In practice, there are various methods for identifying the plastic stratigraphic structure from the three-dimensional data volume of the plastic stratigraphic structure, and one example is given below.
In one embodiment, the control unit is specifically configured to:
and identifying the plastic stratum structure from the three-dimensional data body of the plastic stratum structure according to the gray characteristic value of the plastic stratum structure.
In the above embodiment, the gray scale feature value of the molded stratigraphic structure is generally obtained according to the property analysis of the silica gel material, the gray scale feature value of the molded stratigraphic structure is generally about 650, the molded stratigraphic structure is obtained with the gray scale feature value of above 650, the sandstone body is obtained with the gray scale feature value of below 650, and the data with the value of 650 is found from the three-dimensional data body of the molded stratigraphic structure to form the molded stratigraphic structure. The identification of the shaped stratigraphic structure can be realized by means of grey scale processing software such as VG, etc., and all relevant modifications fall within the scope of the present invention.
In practice, there are various methods for extracting the attribute data of the shaped stratigraphic structure, and one example is given below.
In one embodiment, the control unit is specifically configured to:
slicing the molded stratum tectosome;
the attribute data of the molded layered structure is extracted from the sliced molded layered structure.
In an embodiment, the property data of the shaped formation structure comprises one or any combination of a shaped formation configuration pattern, a shaped formation hill height, and a shaped formation hill width.
In the above embodiments, the shaped stratigraphic structure may be sliced from any direction, such as the three-dimensional X, Y, Z direction, when the shaped stratigraphic structure is sliced.
And (4) completing deformation evolution of the structure of the shaped stratum according to the analysis result, and guiding oil and gas exploration and deployment under the shaped stratum.
Based on the above embodiments, the present invention provides the following embodiments to explain a detailed flow of performing the analysis of the shaped formation structure by using the variable-dip angle shaped formation structure analysis system, and fig. 2 is a detailed flow chart of performing the analysis of the shaped formation structure by using the variable-dip angle shaped formation structure analysis system in the embodiments of the present invention, as shown in fig. 2, including:
Of course, it is understood that the above detailed flow may be modified to provide a specific embodiment to illustrate specific applications of the methods provided by the embodiments of the present invention.
The control unit loads post-stack seismic data, logging data and geological background information of a target area into software Geoeast to obtain structural parameters of a deformation simulation model of a shaped stratum structure of the target area, and fig. 3 is a seismic section schematic diagram of the shaped stratum structure in the embodiment of the invention, wherein the shaped stratum is a salt layer, and the logging data necessarily comprises an acoustic wave curve, a density curve and a gamma curve. Wherein, the simulated formation material adopts quartz sand, and the simulated moulding formation material adopts silica gel. According to the seismic section characteristics, a target shaping formation dip angle is obtained through calculation by utilizing a trigonometric function relation, in the embodiment, the target shaping formation dip angle is 5 degrees, and finally, the control unit outputs the structural parameters of the shaping formation experiment model of the target area, the target shaping formation dip angle and the target deformation stress.
The shaping stratum experimental model constructing unit constructs quartz sand and silica gel in a sand box with a set size according to the construction parameters of the shaping stratum structure deformation simulation model of the target area in proportion to obtain the shaping stratum experimental model, and fig. 4 is a schematic diagram of the shaping stratum experimental model in the embodiment of the invention.
The shaping formation deformation simulation model construction unit adjusts the inclination angle of a shaping formation experimental model to a target shaping formation inclination angle of 5 degrees through a rotation angle adjuster (the stage is called a lifting stage of shaping formation structure deformation evolution and is called an initial stage of shaping formation structure deformation evolution before the lifting stage), the shaping formation flows under the action of gravity (the stage is called a gravity tension stage of shaping formation structure deformation evolution), and then the adjusted shaping formation experimental model is loaded with a target overlying differential deposition natural force (or called differential load) through an automatic sand distribution device to obtain the shaping formation deformation simulation model (the stage is called a differential load stage of shaping formation structure deformation evolution). In the embodiment, the target deformation stress is provided by the target overlying differential deposition natural force and gravity of the overlying stratum, and in the structural deformation process, the overlying differential deposition natural force of the quartz sand overlying the silica gel layer is continuously increased until the target overlying differential deposition natural force is reached, so that the silica gel layer is promoted to deform.
The modeling stratum deformation simulation model is placed in the scanning unit, different scanning frequencies are set, the scanning position of the modeling stratum deformation simulation model is placed under the scanning unit, the modeling stratum deformation simulation model is pushed into the scanning unit at a constant speed at a certain speed, different faces of the modeling stratum deformation simulation model are scanned, continuous face data (or face images) at equal intervals are collected, the collection mode comprises continuous collection and fixed-point collection, in the embodiment, the continuous collection mode is selected according to the research precision requirement, and the deformation process is mainly monitored dynamically. Fig. 5 is a schematic diagram of a scanning position of a scanning unit scanning a modeling formation deformation simulation model by using a CT scanning method in an embodiment of the present invention, and fig. 6 is a schematic diagram of surface data corresponding to fig. 5 in an embodiment of the present invention.
The control unit receives the surface data of the shaping stratum structure, and three-dimensional reconstruction is carried out on the surface data of the shaping stratum structure by loading the surface data into reconstruction software VG to obtain a three-dimensional data body of the shaping stratum structure; the three-dimensional data volume is loaded into a gray scale editing analysis software such as VG, and the plastic stratigraphic structure is identified from the three-dimensional data volume of the plastic stratigraphic structure according to the gray scale feature value of the plastic stratigraphic structure, wherein the gray scale feature value of the plastic stratigraphic structure is 640 in this embodiment.
By means of quantitative analysis, slicing processing is carried out on the molded stratum structure from X, Y, Z directions, the purpose that the attributes of the molded stratum structure are analyzed under the condition that the molded stratum structure is not damaged is achieved, the molded stratum structure style, the molded stratum mound height and the molded stratum mound width are obtained, the molded stratum structure deformation rule can be obtained, and the molded stratum structure deformation rule is differential load and gravity tension in the embodiment. And finally obtaining a deformation evolution process of the plastic stratum structure according to the analysis, and guiding the exploration and deployment of oil and gas under the plastic stratum. Fig. 7 is a schematic diagram of an evolution process of a formation structure in an embodiment of the present invention, in which I is an initial stage, II is a lifting stage, III is a gravity tension stage, and IV is a differential loading stage.
In summary, in the system provided in the embodiment of the present invention, the modeling formation deformation simulation model constructing unit includes an angle adjuster; the control unit is used for: determining a target shaping stratum inclination angle, a target deformation stress and a construction parameter of a shaping stratum experimental model according to the post-stack seismic data, the logging data and the geological background information of the target area; receiving surface data of the shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure; identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure, and extracting attribute data of the plastic stratum structure body; the modeling stratum experimental model construction unit is used for constructing a modeling stratum experimental model according to construction parameters of the modeling stratum experimental model; the shaping stratum deformation simulation model construction unit is used for adjusting the inclination angle of the shaping stratum experiment model to a target shaping stratum inclination angle through the rotation angle adjuster, and loading target deformation stress on the adjusted shaping stratum experiment model to obtain a shaping stratum deformation simulation model; and the scanning unit is used for scanning the modeling stratum deformation simulation model, generating surface data of a modeling stratum structure and sending the surface data to the control unit. The target moulding stratum inclination angle, the target deformation stress and the construction parameters of the moulding stratum experimental model are accurately determined by the post-stack seismic data, the logging data and the geological background information of the target area, and the constructed moulding stratum experimental model has high precision; the angle regulator enables the moulding stratum experimental model to be adjusted to a target moulding stratum inclination angle, so that the flowing and deformation conditions of the moulding stratum under a variable angle can be simulated, and an accurate moulding stratum deformation simulation model is obtained; by scanning the modeling stratum deformation simulation model, the three-dimensional data body of the modeling stratum structure containing the accurate internal result can be obtained, so that the identified modeling stratum structure is high in accuracy from the three-dimensional data body of the modeling stratum structure containing the accurate internal result, and the finally extracted attribute data of the modeling stratum structure is high in accuracy.
An embodiment of the present invention further provides a method for analyzing a variable-dip-angle shaped stratigraphic structure, and fig. 8 is a flowchart of the method for analyzing a variable-dip-angle shaped stratigraphic structure in an embodiment of the present invention, as shown in fig. 8, the method includes:
in step 803, the plastic stratigraphic structure is identified from the three-dimensional data volume of the plastic stratigraphic structure, and the attribute data of the plastic stratigraphic structure is extracted.
In one embodiment, the configuration parameters of the model for modeling the formation experiment include one or any combination of model boundaries, physical simulation model similarity ratio, physical simulation duration similarity ratio, simulated formation material and simulated modeling formation material.
In one embodiment, the deformation stress includes gravity and target overburden differential deposition natural forces.
In one embodiment, identifying the shaped stratigraphic structure from the three-dimensional data volume of the shaped stratigraphic structure comprises:
and identifying the plastic stratum structure from the three-dimensional data body of the plastic stratum structure according to the gray characteristic value of the plastic stratum structure.
In one embodiment, extracting the attribute data of the shaped stratigraphic construct comprises:
slicing the molded stratum tectosome;
the attribute data of the molded layered structure is extracted from the sliced molded layered structure.
In summary, in the method provided by the embodiment of the present invention, a target shaped formation dip angle, a target deformation stress, and a configuration parameter of a shaped formation experimental model are determined according to post-stack seismic data, logging data, and geological background information of a target area, where the configuration parameter of the shaped formation experimental model is used to construct the shaped formation experimental model; obtaining surface data of a shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure, wherein the surface data is obtained by scanning a shaping stratum deformation simulation model, and the shaping stratum deformation simulation model is obtained by loading a target deformation stress on an experimental model of the shaping stratum based on a target shaping stratum inclination angle; the molded stratigraphic structure is identified from the three-dimensional data volume of the molded stratigraphic structure, and the attribute data of the molded stratigraphic structure is extracted. In the process, the target moulding stratum inclination angle, the target deformation stress and the construction parameters of the moulding stratum experimental model are accurately determined by the post-stack seismic data, the logging data and the geological background information of the target area, and the constructed moulding stratum experimental model has high precision; the modeling stratum deformation simulation model is obtained by loading a target deformation stress on a modeling stratum experiment model based on a target modeling stratum inclination angle, so that the flowing and deformation conditions of the modeling stratum under a variable angle can be simulated, and an accurate modeling stratum deformation simulation model is obtained; by scanning the modeling stratum deformation simulation model, the three-dimensional data body of the modeling stratum structure containing the accurate internal result can be obtained, so that the identified modeling stratum structure is high in accuracy from the three-dimensional data body of the modeling stratum structure containing the accurate internal result, and the finally extracted attribute data of the modeling stratum structure is high in accuracy.
An embodiment of the present invention further provides a variable-inclination angle modeling stratigraphic structure analysis apparatus, fig. 9 is a flowchart of a variable-inclination angle modeling stratigraphic structure analysis method in an embodiment of the present invention, as shown in fig. 9, the apparatus includes:
a data obtaining module 901, configured to determine a target shaped formation dip angle, a target deformation stress, and configuration parameters of a shaped formation experimental model according to post-stack seismic data, logging data, and geological background information of a target area, where the configuration parameters of the shaped formation experimental model are used to construct the shaped formation experimental model;
a three-dimensional data volume obtaining module 902, configured to obtain surface data of a molded formation structure, perform three-dimensional reconstruction on the surface data of the molded formation structure, and obtain a three-dimensional data volume of the molded formation structure, where the surface data is obtained by scanning a molded formation deformation simulation model, and the molded formation deformation simulation model is obtained by loading a target deformation stress on a molded formation experimental model based on a target molded formation inclination angle;
the analysis module 903 is configured to identify the plastic stratigraphic structure from the three-dimensional data volume of the plastic stratigraphic structure, and extract attribute data of the plastic stratigraphic structure.
In summary, in the device provided in the embodiment of the present invention, the target shaped formation dip, the target deformation stress, and the structural parameters of the shaped formation experimental model are accurately determined from the post-stack seismic data, the logging data, and the geological background information of the target area, and the constructed shaped formation experimental model has high precision; the modeling stratum deformation simulation model is obtained by loading a target deformation stress on a modeling stratum experiment model based on a target modeling stratum inclination angle, so that the flowing and deformation conditions of the modeling stratum under a variable angle can be simulated, and an accurate modeling stratum deformation simulation model is obtained; by scanning the modeling stratum deformation simulation model, the three-dimensional data body of the modeling stratum structure containing the accurate internal result can be obtained, so that the identified modeling stratum structure is high in accuracy from the three-dimensional data body of the modeling stratum structure containing the accurate internal result, and the finally extracted attribute data of the modeling stratum structure is high in accuracy.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A variable dip angle modeling stratigraphic structure analysis system, comprising: a modeling stratum deformation simulation model construction unit, a modeling stratum experiment model construction unit, a scanning unit and a control unit, wherein,
the shaping formation deformation simulation model construction unit comprises an angle regulator;
the control unit is used for: determining a target shaping stratum inclination angle, a target deformation stress and a construction parameter of a shaping stratum experimental model according to the post-stack seismic data, the logging data and the geological background information of the target area; receiving surface data of the shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure; identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure, and extracting attribute data of the plastic stratum structure body;
the modeling stratum experimental model construction unit is used for constructing a modeling stratum experimental model according to construction parameters of the modeling stratum experimental model;
the shaping stratum deformation simulation model construction unit is used for adjusting the inclination angle of the shaping stratum experiment model to a target shaping stratum inclination angle through the rotation angle adjuster, and loading target deformation stress on the adjusted shaping stratum experiment model to obtain a shaping stratum deformation simulation model;
and the scanning unit is used for scanning the modeling stratum deformation simulation model, generating surface data of a modeling stratum structure and sending the surface data to the control unit.
2. The variable dip angle shaped formation configuration analysis system of claim 1, wherein configuration parameters of the shaped formation experimental model comprise one or any combination of model boundaries, physical simulation model similarity ratio, physical simulation duration similarity ratio, simulated formation material, and simulated shaped formation material.
3. The variable dip angle shaped stratigraphic configuration analysis system of claim 1, wherein the deformation stress comprises gravity and target overburden differential depositional natural forces;
the shaping stratum experimental model construction unit further comprises an automatic sand distribution device, and the automatic sand distribution device is used for overlaying differential deposition natural force on the adjusted loading target of the shaping stratum experimental model.
4. The variable-dip-angle shaped stratigraphic structure analysis system of claim 3, wherein the automatic sanding device is specifically configured to: adjusting the current overlying differential deposition natural force to the target overlying differential deposition natural force by adjusting at least one of the following parameters:
speed, position, frequency, thickness of the sanding.
5. The variable-dip shaped stratigraphic configuration analysis system of claim 1, wherein the control unit is specifically configured to:
and identifying the plastic stratum structure from the three-dimensional data body of the plastic stratum structure according to the gray characteristic value of the plastic stratum structure.
6. The variable-dip shaped stratigraphic configuration analysis system of claim 1, wherein the control unit is specifically configured to:
slicing the molded stratum tectosome;
the attribute data of the molded layered structure is extracted from the sliced molded layered structure.
7. The variable dip shaped stratigraphic structure analysis system of claim 1, wherein the shaped stratigraphic structure property data comprises one or any combination of a shaped stratigraphic structure pattern, a shaped stratigraphic mound height, and a shaped stratigraphic mound width.
8. A method for analyzing a variable dip angle molded formation, comprising:
determining a target shaping stratum inclination angle, a target deformation stress and construction parameters of a shaping stratum experimental model according to post-stack seismic data, logging data and geological background information of a target area, wherein the construction parameters of the shaping stratum experimental model are used for constructing the shaping stratum experimental model;
obtaining surface data of a shaping stratum structure, and performing three-dimensional reconstruction on the surface data of the shaping stratum structure to obtain a three-dimensional data body of the shaping stratum structure, wherein the surface data is obtained by scanning a shaping stratum deformation simulation model, and the shaping stratum deformation simulation model is obtained by loading a target deformation stress on an experimental model of the shaping stratum based on a target shaping stratum inclination angle;
the molded stratigraphic structure is identified from the three-dimensional data volume of the molded stratigraphic structure, and the attribute data of the molded stratigraphic structure is extracted.
9. A variable dip angle molded stratigraphic structure analysis device, comprising:
the data acquisition module is used for determining a target shaping stratum inclination angle, a target deformation stress and construction parameters of a shaping stratum experimental model according to post-stack seismic data, logging data and geological background information of a target area, wherein the construction parameters of the shaping stratum experimental model are used for constructing the shaping stratum experimental model;
the three-dimensional data body obtaining module is used for obtaining surface data of the shaping stratum structure, carrying out three-dimensional reconstruction on the surface data of the shaping stratum structure and obtaining a three-dimensional data body of the shaping stratum structure, wherein the surface data is obtained by scanning a shaping stratum deformation simulation model, and the shaping stratum deformation simulation model is obtained by loading target deformation stress on an experimental model of the shaping stratum based on a target shaping stratum inclination angle;
and the analysis module is used for identifying the plastic stratum structure body from the three-dimensional data body of the plastic stratum structure and extracting the attribute data of the plastic stratum structure body.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of claim 8 when executing the computer program.
11. A computer-readable storage medium storing a computer program for executing the method of claim 8.
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