5results about How to "Reasonable idea" patented technology

The application provides a method for realizing well logging lithology identification based on a convolutional recurrent deep learning network of a self-attention mechanism, mainly comprising: (1) data set construction, that is, using drilling core lithology description results and well logging data of a coring well section to group samples; (2) model construction, that is, determining a sample input mode and a basic structure of the model; (3) model training, that is, removing null values and abnormal values, normalizing sample characteristic values, encoding label values, and dividing the samples into a training set, a verification set and a test set; (4) model evaluation, that is, realizing model construction, parameter optimization, model training and verification based on PyTorch. The application has reasonable conception, and realizes well logging lithology identification by constructing a core-well logging mapping relationship.

This invention provides an intelligent inversion method for ground mechanical parameters driven by impact penetration test data. It constructs a machine learning inversion model by learning and training the relationship between the time history curves of the penetrometer's dynamic response and ground mechanical property parameters in the interpretation model database. After acquiring measured cone resistance and acceleration time history data, these are input into the trained machine learning inversion model to directly obtain the ground mechanical property parameters. Furthermore, requiring only one input-output reverse transmission, the inversion speed can be reduced to the second level. The intelligent algorithm enables accurate interpretation of ground mechanical property parameters such as soil density, elastic modulus, Poisson's ratio, cohesion, and internal friction angle. This invention is rationally conceived and can efficiently, accurately, and intelligently interpret the ground mechanical property parameters of impact-penetrated soil.

The application provides a deep-sea light-weight ring-stiffened cylindrical shell strength design method, which specifically comprises the following steps: (1) establishing a geometric model of the ring-stiffened cylindrical shell under external static water pressure; (2) performing stress analysis on the geometric model to obtain a cylindrical shell deflection curve expression containing unknown parameters; (3) confirming the boundary conditions of the geometric model and solving the unknown parameters in the cylindrical shell deflection curve expression according to the boundary conditions, substituting into the cylindrical shell deflection curve expression, thereby obtaining a complete deflection curve analytical expression, calculating stress values at different positions of the shell body based on the deflection curve analytical expression, and performing strength design on the structure according to the geometric parameters of the ring-stiffened cylindrical shell structure. The application has reasonable concept, the elastic boundary condition is used at the rib, the new boundary condition can better describe the constraint condition of the ribbed cylindrical shell at the rib and shell connection according to the material characteristics, and can be used for ring-stiffened cylindrical shell structures of different materials, and is more universal and accurate.

This invention provides a method for controllably selenizing different tellurium atom layers in a monolayer VTe2 sandwich structure, which mainly includes: (1) preparing a monolayer VTe2 on a graphene substrate using molecular beam epitaxy at three temperatures; (2) evaporating and depositing selenium atoms with a purity of 99.999% onto the surface of the monolayer VTe2 under vacuum, while maintaining the monolayer VTe2 and the graphene substrate at a preset reaction temperature, so that the deposited selenium atoms interact with the monolayer VTe2 and diffuse sufficiently, thereby controllably generating either the two-dimensional ordered selenization product VTeSe or VSe2 of a Janus structure vanadium chalcogenide. This invention is conceptually sound and can grow a novel Janus structure vanadium chalcogenide compound or controllably selenize to obtain VSe2.

The application provides a method for constructing a fracture conductivity model considering hydration and Brinkman flow, which mainly comprises the following steps: 1) establishing a relationship between fracture conductivity and fracture width; 2) performing a fracture conductivity test experiment to test the fracture conductivity loss of a core subjected to hydration by passing KCl solution under different stress loading times; and 3) establishing a relationship between deep coal rock hydration time and fracture conductivity. The application has reasonable concept, can accurately predict the change of fracture conductivity, can accurately capture the complex coupling relationship between hydration and fracture conductivity and effective stress, and thus provides a scientific decision basis for actual engineering.