36 results about "Seismic line" patented technology

The invention provides a merging processing method of 2D seismic data of complex surfaces, belonging to the field of data processing in geophysical exploration. The method is characterized by firstly establishing a spatial model of a 2D seismic data volume, secondly carrying out field one-step static computation on the spatial model of the 2D seismic data volume, thirdly carrying out field one-step static application, pre-stack noise elimination and fidelity and consistency processing on each 2D seismic line in the spatial model and finally improving the signal to noise ratio and resolution of a target layer. The method has the following beneficial effects: by utilizing the method to carry out merging processing on the 2D seismic data acquired in different years, when the profile is processed, the depth error is smaller than the normative index, the structural features are clear, reliable and closed, and the seismic profile which has high resolution, high fidelity and high signal to noise ratio and can more clearly reflect the structure and lithological change characteristics is processed, thus providing reliable processing result for seismic interpretation.

A new type of prefabricated integrated concrete shear wall panel with holes at the bottom and multi-connected beams, including the lateral connection reinforcement of the prefabricated concrete shear wall panel, the top connection reinforcement and the bottom installation sleeve corresponding to the top connection reinforcement, There are window openings in the middle of the wall panels and structural openings corresponding to the window openings, wall piers, common connecting beams, energy-dissipating connecting beams A and energy-dissipating connecting beams B at the lower end of the wall panels. The openings have the same width, and the structural openings are filled with lightweight non-structural materials, and the top connecting reinforcement protrudes upwards from the wall pier to connect the upper and lower shear wall reinforcements. The invention reduces the number of steel bar connections, lightens its own weight, facilitates construction, transportation and hoisting, has good earthquake resistance, forms multiple anti-seismic defense lines in the building, and enhances the energy consumption capacity of the wall to achieve the purpose of reducing repair costs.

A seismic dataset and a task to be performed with the seismic dataset may be received. A representative seismic line representative of the seismic dataset may be generated. The representative seismic line may include pixel data representative of the seismic dataset. Based on the representative seismic line, the task may be performed. The task may include at least finding an analogous geological region by searching for an analogous seismic dataset existing in a seismic database by comparing the representative seismic line with the analogous seismic dataset's representative seismic line.

The invention discloses a rapid extraction method of data of a seismic cross-section crossing three-dimensional seismic work areas. The rapid extraction method comprises the steps that a seismic linecrossing thethree-dimensionalseismic work areas is selected on multiple crossedthree-dimensional seismic work areas within a basin;sampling points are selected at equal intervals on the seismic line;the Ray Casting algorithm is used for obtaining the three-dimensional seismic work areas in which the sampling points are located;the number of corresponding child nodes of the sampling points is determined according to the number of the seismic work areas in which the sampling points are located, andthe child nodes of the sampling points are connected in sequence to form a network through different linking-up wires;the linking-up wires and the nodes are given weights to achievevertex sets of the shortest path between the nodes in the network by using a shortest path method; andcorresponding seismic data are found out according to the vertex sets to make a seismic cross-section diagram of the three-dimensional seismic work areas. The rapid extraction method has the advantages that efficientand optimized seismic cross-section data extraction can be achieved;in the process of oil exploration, the procession of work area splicing can be avoided, anda great deal of money for a project canbe saved.

The invention discloses an automatic tracking method for historical seismogram waveforms, which belongs to the technical field of oil and gas geophysical exploration. Its features include: (1) using the differential geometry curve extraction algorithm to extract the seismic wave curve points and the local directions of the seismic wave curves from the seismogram; (2) connecting the extracted curve points according to the extracted curve local directions into a (3) Finally, according to the characteristics of the seismic wave curve itself, such as the symmetric characteristics of the seismic wave curve at its inflection point and the vibration characteristics of the seismic wave curve doing back and forth motion around the central axis, the seismic wave curve segment is carried out with the idea of ​​​​backtracking. track. The effect and benefit of the present invention are that the precision of automatic tracking of seismic wave waveform is improved, and the seismogram with crossed lines and breakpoints can be processed without manual intervention.