42 results about "Stratigraphic section" patented technology

The invention discloses a method for fast establishing interactive tunnel and wall rock body three-dimensional models, which comprises the following steps: A. tunnel line position information base establishment: collecting tunnel line position information and establishing a line position information base; B. geological exploration base establishment: carrying out standardized processing on hole drilling data obtained through geological exploration; C. three-dimensional stratigraphical profile constraint information base establishment: collecting three-dimensional stratigraphical profile constraint information; D. three-dimensional stratigraphical boundary constraint information base establishment: collecting self defined model establishing boundary; E. real three-dimensional tunnel model establishment: precisely establishing a tunnel three-dimensional model according to the information of tunnel line positions, the tunnel hole body outer cross section and the inner cross section; F. real three-dimensional wall rock model establishment: establishing a wall rock model according to the hole drilling and stratigraphical information; and G. tunnel digging and profile real-time cutting display based on the wall rack model body unit. The model establishing efficiency and precision of the tunnel simulation and digitalized design can be improved, the real-time cutting display of the tunnel passing through the wall rock and any vertical profile can be realized, and the fast reestablishment of the model can be realized.

The invention discloses a similar reconstruction model experiment device and method based on three-dimensional geological prospecting. A three-dimensional geological prospecting device is used for prospecting three-dimensional geological information of a study area, then the three-dimensional geological information is input in a three-dimensional data reconstruction system and reconstructed into three-dimensional data information, and the three-dimensional data information is input in a 3D printing device; similar materials and ratios corresponding to different geological structures are determined, and then three-dimensional stratigraphic section geological information of the study area is determined according to the three-dimensional data information; a 3D printing coal rock is printed ina model frame through a 3D printing device according to the geometric similarity rate and the volume-weight similarity rate, and a data monitoring device is mounted in the 3D printing coal rock; a hydraulic loading unit is started to apply loads; analogue simulation is carried out corresponding to the actual rock soil activity condition of a site, data in the data monitoring device is collected in the activity process, thus, the underground rock stratum real condition and rock stratum activities are accurately reflected, and meanwhile stress and displacement multi-site time varying monitoringand analyzing are achieved.

Carrying out straight line fit between instantaneous frequency point corresponding to peak point of envelope signal of echo signals and adjacent instantaneous frequency points, the method obtains relation between accoustic attenuation of marine bottom sediment and frequency. The system includes transducer array, electronic extension, temperature sensors, and main end in use for monitor and control, and storage. The designed electronic extension carries out data process by using the method provided by the invention. Featureas are: overcoming current technical shortcomings in principle, correct philosophy of measurement, quick measurement and accurate result.

The utility model relates to a high precision prestack depth migration method in the oil exploration reflected wave earthquake data processing process. The method comprises the following steps: prestack shot gather data on the unified datum plane is collected, continuation step length is determined, a velocity field is divided into small velocity areas, a wave field is extended through a split-step Fourier method according to the large step length in each small velocity field, 5 the wave fields of the velocity areas obtained after the continuation in different areas are merged according to the actual corresponding net point, smooth filter processing is carried out, the whole wave field after the continuation is obtained, linear phase shift interpolation is carried out on the two adjacent waves fields and each wave field in the middle which is extended according to the small continuation step length is obtained. The invention forms images according to the cross-correlation imaging principle, obtains the prestack depth shift result, displays the shift result to stratigraphic section images, obviously improves the imaging quality of complex geologic structure and has low cost.

Riprap of river levees underwater detection method was described: positioning using two dual-frequency GPS receiver instantaneous. a set of GPS stations located in the ground, another set of GPS stations in tracking, their receiving antenna cables in fixed detector position; using the chirp of shallow stratigraphic profile, will launch a probe into the water, and the use of navigation software for water position that the importation of the initial design Coordinate Measuring line; By design measuring line navigation, taking flight, using continuous measurement mode, real-time record measured coordinates track location map; use of shallow stratigraphic profile of underwater riprap areas Detection, stratigraphic section acoustic recordings; to track location map and stratigraphic section sound and graphics combined with a variety of conditions underwater riprap A typical shallow image control features, thereby detecting underwater riprap, without judgment Stone, a stone and the stone siltation coverage area. The invention of the underwater riprap levee provides an effective and reliable detection method to record high resolution, visual power.

The invention, which relates to the technique of displaying virtual reality at a display screen, discloses a dynamic construction method of a three-dimensional geological section model. The dynamic construction method comprises the following steps: setting a section; extracting, determining and perfecting underground data; extracting and adjusting stratum data; intersecting a stratigraphic section with a stratum data structure; generating a section data structure; and forming a three-dimensional model. The dynamic construction method has the following advantages: the method plays a helping role in obtaining and constructing underground spatial information in urban construction, especially future smart city construction; the three-dimensional development of urban space and underground commercial traffic development and utilization can be promoted; and three-dimensional modeling can play a prominent role in geological research in underground mineral resource exploitation and geological research work.

The invention provides a drawing method of an LWD (logging while drilling) curve, and belongs to the field of oil and gas development and exploration. The method comprises the following steps: 1) establishing a longitudinal stratigraphic section; 2) projecting wellbore trajectory data to the longitudinal stratigraphic section; 3) constructing a two-dimensional vertical depth-logging response datapair sequence along a wellbore trajectory; 4) constructing a two-dimensional vertical depth-horizontal displacement pair sequence along the wellbore trajectory; 5) establishing a curve drawing coordinate drawing path, and drawing a first point N0 in the two-dimensional vertical depth-logging response data pair sequence; 6) along the wellbore trajectory, based on M successive points in the two-dimensional vertical depth-horizontal displacement pair sequence after the current drawing point, forming a regression equation through a cubic spline algorithm; 7)carrying out second-order derivation onthe regression equation, then, searching a turning point, and drawing a logging curve in a separate-path manner at the turning point; and 8) end. The method can realize clearer vertical stratigraphiccharacteristic display.

Embodiments of methods of creating and interpreting animated mosaics of multiple seismic surveys are disclosed herein. Volumes from individual seismic surveys may be flattened in each seismic cube. Animations/movies may then be produced by capturing a series of z-slice movie frames through each of the flattened volumes. The individual sets of movie frames are geo-referenced to a basemap image of well locations using appropriate composition software. Where overlap exists between surveys, the surveys are prioritized and lower priority volumes are masked by higher priority volumes. This technique provides a matched, unbroken image across overlapping volumes at each stratigraphic layer. As the movie or animation plays, a moving arrow pointer shows the vertical position of the current movie frame on a stratigraphic section consisting of a seismic reference section that is optionally labelled with suitable regional sequence names and other stratigraphic zonation data.

The invention provides a tridimensionality drainage method for a gravity field. By drawing an underground percolation contour map and a stratigraphic section map, the method carries out earth stability analysis, and sets vertical gulley holes and the position of a cut-off wall according to the acquired data with the aid of a boundary map of a stratum percolation pressure field for stratum safety condition analyzed with stratum professional experience. The invention also provides a tridimensionality drainage structure of a gravity field, which comprises at least one cut-off wall and at least one horizontal drain pipe. A drainage path system constructed by the method can truly discharge perched water and underground vadose water in the tridimensionality geographic space of regions covered in discharge construction according to natural gravity of physics so as to ensure the designed drainage efficiency and effectively control the percolating water pressure in the stratum, thereby being applicable to stratum with various geological conditions and various percolation rates.

The invention provides an interwell sedimentary sequence research method based on a Markov chain mathematic model. The method comprises: counting frequency number on each kind of lithofacies transferring to another kind of lithofacies, establishing an upward transfer frequency matrix N; transferring the upward transfer frequency matrix N to a random sequence transition probability matrix S, and transferring the upward transfer frequency matrix N to an upward transition probability matrix P; according to the random sequence transition probability matrix S and the upward transition probability matrix P, obtaining a single well state difference value matrix K; simplifying the upward transition probability matrix P, to obtained a simplified upward transition probability matrix P'; and establishing a sedimentary sequence mode through the simplified upward transition probability matrix P'. For a stratigraphic section which is complex in lithological changes but has certain deposition law, the interwell sedimentary sequence research method based on a Markov chain mathematic model can predict change rules of lithological characters on a vertical direction of adjacent domains of the well according to lithological changes of a drilled well.

Data filtering and processing techniques for generating improved wellbore resistivity displays are contemplated. In some aspects, a process of the disclosed technology includes steps for receiving a first measurement set comprising electromagnetic field data for a first tool depth in a geologic formation, receiving a second measurement set comprising electromagnetic field data for a second tool depth in the geologic formation, performing an inversion on the first measurement set and the second measurement set to generate a first formation profile and a second formation profile, and displaying the first formation profile and the second formation profile in a user interface (UI). Systems and machine-readable media are also provided.

The invention discloses a method and a device for constructing a geological section three-dimensional model. The method comprises the following steps: (1) loading two-dimensional data to form a section set SP, a stratigraphic section set S, a section line set SL and a grid set GEoDEM; (2) reading any section spo from the SP, and constructing a surface line GL and a reference line RL; (3) reading any stratigraphic section of the section spo, and performing spatial geometric transformation on the stratigraphic section and the ground surface line GL to obtain a transformed stratigraphic section and a transformed ground surface line; (4) converting the transformed stratigraphic section into three dimensions to obtain a three-dimensional stratigraphic section; (5) based on the three-dimensional stratigraphic section, creating a parallel stratigraphic section according to a preset strip width w, and constructing a stratigraphic three-dimensional model by using the two stratigraphic sections; and (6) circularly executing the steps until all stratums of all sections are traversed to obtain three-dimensional entity models of all stratums, and inlaying to obtain a three-dimensional geological section model. The method for quickly constructing the three-dimensional section model based on the two-dimensional geological section map is realized.

The invention discloses a visual display method for shallow stratum profile original data based on SEGY, and the method comprises the steps: firstly, referring to ocean survey specifications, combining with the on-site water depth topographic survey conditions, collecting and obtaining the shallow stratum profile original data under the condition that the requirements of survey line arrangement and observation system parameters are met, and storing the shallow stratum profile original data in an SEGY file format; importing a shallow stratum profile original data file of the SEGY of a certain measuring line, realizing data reading and decoding by using Matlab programming, and extracting all echo signal data of the measuring line by taking Ping as an abscissa and time depth as an ordinate; programming the extracted echo signal data to perform surge static correction, multiple wave suppression and true amplitude recovery processing, and generating a shallow stratum profile map to realizeimage visualization of the shallow stratum profile data. The method can be applied to analysis of single-channel and multi-channel seismic original data of deep and shallow water type shallow stratumprofiles mainly based on SEGY, and meanwhile necessary reference can be provided for analysis of side-scan sonar original data mainly based on an XTF format.

The invention provides a method and device for determining river type conversion of a fluvial facies stratum. The method comprises the steps: determining a fluvial facies sedimentary layer section ofa target region, and dividing sand groups according to the sedimentary cycle characteristics of the fluvial facies sedimentary layer section; on the basis of the fluvial facies sedimentary stratum profile, carrying out statistics to obtain sensitive sedimentary parameters in each divided sand group and using the sensitive sedimentary parameters for reflecting river type changes; acquiring sensitive sedimentary parameters in each sand group according to statistics, determining indication sensitive parameters with obvious characteristic response in the sensitive sedimentary parameters, and calculating a change rate average value of the indication sensitive parameters of each sand group; and according to the change rate average value of the indication sensitive parameters of each sand group,determining the river type conversion vertical layer section position of the fluvial facies stratum in the target area. The vertical layer section position of river type conversion of the fluvial facies stratum is quantitatively determined based on logging data, plane and profile sand body distribution characteristics of different layers of sections in the fluvial facies stratum can be more accurately implemented, and the effect of exploration and development deployment is improved.

The invention relates to the field of slope engineering, in particular to a method for depicting a stratum profile based on a small sample, which mainly comprises the following steps: obtaining stratum boundary measurement data from a drilling record; quantifying stratum boundary uncertainty by utilizing limited stratum boundary data; and simulating the uncertainty of the stratum boundary according to the statistical information obtained in the previous step. Compared with traditional stratum profile depiction, the invention has the advantages that limited drilling vertical soil property layering information is directly utilized, the Bayesian compression method is adopted to reasonably and objectively quantify the horizontal stratum boundary uncertainty and reconstruct the two-dimensional underground stratum, the problem that a traditional stratum boundary interpolation method is large in actual measurement data demand is solved, the accuracy of depicting the stratum boundary based on the small sample is remarkably improved, and certain theoretical innovation significance and engineering practical value are achieved.

The invention relates to a method for delineating an ocean seamount carbonate rock distribution range and a processing terminal. The method comprises the following steps of: 1, preprocessing seismic profile data of a shallow stratum to obtain shallow stratum profile processing result data; 2, performing normalization processing to obtain normalized shallow stratum profile processing result data; 3, carrying out seismic attribute calculation to obtain instantaneous amplitude, instantaneous frequency and average frequency; 4, carrying out horizon pickup to respectively obtain a seabed horizon and a deposition layer substrate; and 5, carrying out intersection analysis according to the instantaneous amplitude and the average frequency, and determining an area where the instantaneous amplitudeattribute is represented as relatively low amplitude and the average frequency attribute is represented as relatively high frequency as an ocean seamount carbonate rock distribution range. The methodcan quickly identify and delineate the carbonate rock distribution range of a ocean seamount, can be applied to three-dimensional space to display the carbonate rock distribution range, and can be better applied.

The invention belongs to the technical field of sedimentary microfacies division, and relates to a delta sedimentary microfacies quantitative division method based on sedimentary rate estimation, which comprises the following steps of: acquiring a sedimentary rate curve of a stratigraphic section by utilizing a Milankovitch cycle time sequence analysis method on the basis of easily obtained logging data; the method is simple, convenient and rapid, human intervention and workload can be effectively reduced, and a new way is provided for delta sedimentary microfacies division.