41 results about "Sedimentary structures" patented technology

Some embodiments of the invention are directed to techniques for electrochemically fabricating multi-layer three-dimensional structures where selective patterning of at least one or more layers occurs via a mask which is formed using data representing cross-sections of the three-dimensional structure which has been modified to place it in a polygonal form which defines only regions of positive area. The regions of positive area are regions where structural material is to be located or regions where structural material is not to be located depending on whether the mask will be used, for example, in selectively depositing a structural material or a sacrificial material. The modified data may take the form of adjacent or slightly overlapped relative narrow rectangular structures where the width of the structures is related to a desired formation resolution. The spacing between centers of adjacent rectangles may be uniform or may be a variable. The data modification may also include the formation of duplicate copies of an original structure, scaled copies, mirrored copies, rotated copies, complementary copies, and the like.

The invention discloses a method for describing a coal-measures fine-grained sediment structure. The method comprises fine-grained sediment structure log data acquisition and processing, fine-grained sediment structure type well-logging recognition and digitization, fine-grained structure interface, cycle, classification description and depicting and mapping, fine-grained sediment structure classification and quantitative depiction and coal-measures fine-grained structure module and sediment structure classification system establishment. The method provides basis for sedimentation prototype basin recovery, organic matter-rich shale enrichment region evaluation, favorable reservoir stratum prediction and favorable target region optimization.

To provide a three-dimensional building apparatus and a three-dimensional building method capable of generating a three-dimensional object with sufficient adhesion between unit layers even when a photocurable material having larger cure shrinkage due to photocuring placed under a low temperature condition is used as a model material and a support material. A three-dimensional building apparatus includes: a stage configured to hold a deposition structure formed by depositing unit layers; an ejector configured to eject a photocurable model material and a photocurable support material toward the uppermost surface of the deposition structure while moving relative to the stage; an emitter configured to emit an active beam light capable of curing the photocurable model material and the photocurable support material; and a heater configured to heat the uppermost surface of the deposition structure in forming a workpiece.

The invention discloses a method for forming a magnetic thin film structure having perpendicular magnietc anisotropy (PMA), a magnetic thin film having PMA and a tunneling reluctance device having PMA, wherein the magnetic thin film structure having PMA is a multilayered fabrication of materials having differing crystal symmetries that provides smooth transition by use of a seed layer that promotes symmetry matching. An interface between layers in the deposition, such as an interface between a layer of MgO and a Fe-containing ferromagnetic layer, is a source of perpendicular magnetic anisotropy which then propagates throughout the remainder of the deposition by means of the symmetry matching seed layer.

Well core data descriptions are received as input digital data for computer lithofacies modeling. Digital templates are established for carbonate and clastic core description based on reservoir rock formation analysis. Description criteria of the template for carbonate rock can include texture, mineral composition, grain size, and pore type. For clastic rock, the criteria in the template can include grain size, sedimentary structure, lithology, and visual porosity. The data and observations regarding these criteria are entered into a computer 3D geological modeling system directly. Wireline log data are integrated to calibrate with well core description to derive lithofacies. The lithofacies are exported in digital format to be entered into the 3D geological modeling system. A geologically realistic model of the reservoir can be established.

The invention discloses an observation device and method for a suspended sediment deposition structure in deceleration turbidity current. The device comprises a rotating water tank part, a circulating water body pipeline part and an auxiliary monitoring device part. The rotary water tank part comprises an acrylic transparent water tank, a shear ring, a shear ring rotating speed control rocker arm, a rotatable base, a rocker arm control frequency converter, a rotatable base control frequency converter, a center lifting metal rod, a base supporting frame, paddles and the like. The device is ingenious in structure, good in integrity, high in efficiency and low in device cost; physical modeling of the high-speed and strong-turbulence flow state of the turbidity current under the laboratory scale can be achieved, and meanwhile accurate conversion of the flow state is controlled. Large-particle-size sediment particles can be suspended in the annular water tank rotating at a high speed, viscous particles can be researched, and the flocculation capacity of the viscous particles is not damaged; by reversely rotating the bottom of the annular water tank, the secondary flow structure caused by the centrifugal effect can be reduced to the maximum extent, and the change of the shear stress of the tank bottom can be reduced to the minimum.

The invention discloses a dividing method based on a quaternary system unconsolidated formation sub-layer deposition combining structural model. The method comprises the steps of determining the lithology, thickness and space combined deposition structural characteristics of each stratum under the quaternary system lower-part unconsolidated formation top interface according to boring data; drawing the combined deposition space distribution graph of the quaternary system lower-part unconsolidated formation according to the deposition characteristics of the quaternary system lower-part stratum; integrating the drawn stratum with the space distribution graph according to the dividing principle of stratum lithology; performing principle dividing of stratum thickness, sequentially dividing according to the thickness of the stratum from thin to thick, obtaining each sub-layer dividing outcome under the quaternary system lower-part unconsolidated formation, and naming each sub-layer of the quaternary system lower-part unconsolidated formation; and establishing the sub-layer deposition combined structural model under the quaternary system lower-part unconsolidated formation. The dividing method based on the quaternary system unconsolidated formation sub-layer deposition combining structural model provides a reference base for coal mining and recovers a large amount of sluggish coal mine resources, thus obviously improving the social and economic benefits of mine shafts and providing guarantee for safe production of the mine shafts.

The invention discloses a dividing method based on a quaternary system unconsolidated formation sub-layer deposition combining structural model. The method comprises the steps of determining the lithology, thickness and space combined deposition structural characteristics of each stratum under the quaternary system lower-part unconsolidated formation top interface according to boring data; drawing the combined deposition space distribution graph of the quaternary system lower-part unconsolidated formation according to the deposition characteristics of the quaternary system lower-part stratum; integrating the drawn stratum with the space distribution graph according to the dividing principle of stratum lithology; performing principle dividing of stratum thickness, sequentially dividing according to the thickness of the stratum from thin to thick, obtaining each sub-layer dividing outcome under the quaternary system lower-part unconsolidated formation, and naming each sub-layer of the quaternary system lower-part unconsolidated formation; and establishing the sub-layer deposition combined structural model under the quaternary system lower-part unconsolidated formation. The dividing method based on the quaternary system unconsolidated formation sub-layer deposition combining structural model provides a reference base for coal mining and recovers a large amount of sluggish coal mine resources, thus obviously improving the social and economic benefits of mine shafts and providing guarantee for safe production of the mine shafts.

The invention discloses a flow safety early warning method for a submarine gas transmission pipeline with hydrate deposition and shedding, which belongs to the technical field of pipeline flow safety. Its early warning method includes collecting the basic information of all pipelines in the area, calculating the subcooling degree based on the type and concentration of the inhibitor, calculating the change value of the hydraulic diameter with time through the amount of hydrate formation, calculating the flow shear force of the system and communicating with the early warning system. The preset sedimentary structure stress is compared to determine whether shedding occurs; finally, the hydraulic diameter is updated, and the flow safety of the pipeline is judged according to the pressure difference between the inlet and outlet of the pipeline, and whether an early warning is required. This method realizes the dynamic identification of the thickness of the hydrate film with the size of the hydraulic diameter, reproduces the shedding phenomenon of the sedimentary structure, further improves the accuracy of pipeline prediction, and improves the safety of seabed natural gas transportation.

The invention discloses a volcanic material-enriched source rock organic carbon recovery method. The recovery method comprises the following steps: selecting a sample; determining content Z of volcanic materials in source rock; implementing source rock residual organic carbon analysis and kerogen treatment; dividing volcanic material-enriched source rock organic matter types through an element analysis method; calculating an organic carbon recovery coefficient Kc by combining numerical simulation with experiment; fitting related functions of Kc and volcanic material content Z (as shown in specification). The method disclosed by the invention, by recovering residual organic carbon of source rocks differing in volcanic material content, can greatly improve precision of recovering source rock organic carbon; meanwhile, on the basis of researching a research area test data recovery method, the reliability of resource quantity evaluation is improved; the technology fills the blank of volcanic materials in a complex sedimentary structure environment on organic matter abundance recovery, and enriches source rock evaluation theory; according to results, progress of next resource evaluation is greatly promoted.

The invention provides an assembly-free manufacturing method and a device for a micro mechanical structure. The method comprises the following steps: establishing a three-dimensional model of each part of a target mechanical structure, digitally assembling the three-dimensional model into integral machinery, carrying out hierarchical slicing on the integral machinery to obtain each layer of processing graphs, and carrying out processing path planning on graphs on each layer to generate a numerical control program; taking a workpiece substrate to deposit a first material as a sacrificial material in a micro electro-deposition mode, carrying out area-selecting removal on the deposited sacrificial material according to the generated numerical control program in a micro electrical removal processing mode, etching out an area for depositing a structural material in the next step and depositing a second material as the structural material, repeating the steps until the sacrificial material at each layer and the structural material are completely shaped; and finally, removing the sacrificial material to release the mechanical structure, thereby obtaining the target mechanical structure. The invention further provides a device capable of realizing the assembly-free manufacturing method for the micro mechanical structure.

The invention relates to a method for quickly recovering the ancient water depth of a carbonate rock platform in the technical field of petroleum exploration and development. This method judges the high-energy grain shoal through the comprehensive analysis of sedimentary lithology, biological markers, sedimentary structure and other identification marks, and uses the shoal as the origin to identify shallow water environment and relatively deep water environment, and then further analyzes the grain shoal through the grain content, grain type and cementation method Refining, assigning paleo-depth values ​​to all elements (sedimentary lithology, biomarkers, sedimentary structure and other identification marks, particle content, particle type and cementation mode) according to tidal law statistics and wave hydrodynamic analysis, and finally weighting different elements Integrate, calculate and obtain paleo-depth recovery values ​​at different positions of the entire platform through formula calculation, and then obtain the paleo-depth plane distribution map of the carbonate platform, so as to achieve the purpose of rapid recovery. It has laid a reliable geological foundation for paleoenvironmental analysis and research on the origin and distribution of reservoirs.

The invention discloses a method for forming a coarse-scale three-dimensional geological model of sedimentary structures, the method being implemented by a computer, and comprising: —forming a fine-scale three dimensional model of the sedimentary structures, by implementing steps of: o modeling a plurality of meshed sedimentary surfaces, the plurality of meshed sedimentary surfaces delimiting superposed layers of lithology, o forming an unstructured grid comprising a plurality of cells, wherein each cell extends between at least two sedimentary surfaces, o attributing petrophysical parameters to each cell of the grid, and o attributing, to at least some of the sedimentary surfaces, a transmissivity reduction coefficient, and —upscaling the fine-scale three dimensional model to obtain a coarse-scale three dimensional model comprising a plurality of cells, wherein each cell is associated to petrophysical parameters determined from the petrophysical parameters of the fine-scale model, and from the transmissivity reduction coefficient of the sedimentary surfaces.

The invention discloses a stratum matching visual analysis method based on multi-dimensional well logging data, comprising: dividing all wells in the target well field, obtaining the adjacent relationship between the wells, and analyzing each well in the target well field according to the adjacent relationship between the wells. A drilling well is matched with adjacent wells one by one to obtain the corresponding formation matching results; all formation matching results are visualized to obtain a view of the subsurface sedimentary structure of the target wellfield. The subsurface sedimentary structure of the wellfield includes: different formation matching results The difference in similarity between different wells and the depth difference of stratigraphic layers of different wells; select any drilling area from the visualization view, and interact with each of the formation matching results of the selected drilling area with the corresponding visualization view. The invention realizes the visual analysis of the underground sedimentary structure, and can help experts in the geological field and geological exploration enterprises to effectively explore the regional change law of stratum characteristics, reserve estimation and geological structure.

Beam-induced deposition decomposes a precursor at precise positions on a surface. The surface is processed to provide linker groups on the surface of the deposit, and the sample is processed to attach nano-objects to the linker groups. The nano-objects are used in a variety of application. When a charged particle beam is used to decompose the precursor, the charged particle beam can be used to form an image of the surface with the nano-objects attached.

The invention provides an estuary and coast water body suspended sediment deposition time sequence monitoring device, comprising a deposition moment recording unit and a deposition collection unit, wherein the deposition moment recording unit is arranged on one side to record a suspended sediment deposition moment; the deposition collection unit is arranged on the other side to slow down the influence of the external flow velocity and prevent the collected sediment from resuspending and escaping; and the deposition moment recording unit and the deposition collection unit are fixedly connectedside by side. The suspended sediment in estuary and coast water bodies can be collected quickly and massively, the sedimentary texture of the suspended sediment is maintained in the process of collecting the suspended sediment in the estuary and coast water bodies, and meanwhile the deposition moment and the corresponding water level change are recorded synchronously; by analyzing the collected sedimentary structure of the collected suspended sediment, the sediment transport process in the water body is researched; by analyzing the sediment particle size and performing corresponding isotope observation, the sediment source is understood; and by adoption of collected suspended sediment calibration and an optical turbidity sensor of calibration synchronous observation, the error can be reduced by 3-5 times compared with the near-bottom sediment sample calibration.