11 results about "Continental shelf" patented technology

The invention discloses a marine environment spring layer characteristic diagnosis data processing method, and aims at complex dynamic characteristics of a land frame edge sea spring layer to realize accurate diagnosis through multi-source data cooperation and an intelligent algorithm. The method comprises the following steps: acquiring and preprocessing field observation, remote sensing, sonar, terrain and tidal ocean current data; extracting spatio-temporal characteristics based on a CNN-LSTM hybrid network, and generating a dynamic spring layer threshold; fusing multi-source data by adopting an improved D-S evidence theory, and constructing a three-dimensional spring layer characteristic field; predicting an internal wave in combination with an attention mechanism model, and optimizing a preorder model by using sonar data. The method breaks through the limitation of a fixed threshold value, realizes spring layer dynamic identification, three-dimensional reconstruction and internal wave prediction, improves the diagnosis precision of a complex sea area, and provides key technical support for underwater detection, engineering safety and environmental research.

This invention relates to the field of marine surveying technology, and discloses a method, apparatus, equipment, and medium for generating a 100-nautical-mile extrapolation line from a 2500-meter depth line to the outer boundary of the continental shelf. Based on the start and end points of the toe line, the continental shelf direction of the toe line is determined. From a set of created 2500-meter depth lines, each 2500-meter depth line intersecting with the toe line or entirely located in the continental shelf direction is identified and used as a baseline. Based on each baseline, a corresponding 100-nautical-mile extrapolation line is constructed. Based on the extrapolation line corresponding to each baseline, the 100-nautical-mile extrapolation line for the 2500-meter depth line corresponding to the toe line is generated. This invention can automatically generate the 100-nautical-mile extrapolation line from the 2500-meter depth line through analysis of measured 2500-meter depth lines and toe lines. It is fast, simple to operate, and applicable to curve generation with complex seabed topography features, effectively improving the generation efficiency of the 100-nautical-mile extrapolation line from the 2500-meter depth line, and has significant practical value for generating the outer boundary of the continental shelf.

To provide an offshore wind power generation main body reinforcement device that can be effectively fixed to a submarine continental shelf support portion. [Solution] The offshore wind turbine main body reinforcement device comprises a fixed plate (1), a rotation groove, a guide groove, and a ratchet pawl. The fixed plate has an attachment hole (2) on the inner periphery, a circular hole on the right side of the interior of the fixed plate, a rotating pipe (4) inserted into the circular hole, an attachment pipe inserted into the rotating pipe, and a rotating ring engaged inside the attachment pipe. A guide groove extends circumferentially through the inner cavity of the attachment pipe, and a Y-shaped arm is inserted into the guide groove. A ratchet is provided on the outer periphery of the rotating ring, a circumferential relief groove is opened on the underside of the inner wall of the rotation groove, and the ratchet pawl is inserted into the relief groove. A clamp plate is inserted into the attachment groove, and spikes are provided on the outer side of the clamp plate.

A hydropower plant with offshore water supply includes at least one water intake structure, underground penstock, turbine, and tailrace. The water intake structure has a base built on a continental shelf of a water body and a water intake at an elevation above the base. The penstock has an inlet connected to the base and an outlet. The turbine is mounted on a turbine machine floor in an underground turbine room at an elevation lower than the base. The turbine has an inlet port connected to the penstock outlet and an outlet port connected to the tailrace. The inlet receives fluid from the water intake; the inlet port receives fluid from the outlet of the penstock; and the tailrace receives fluid from the inlet port and conveys the fluid to the water body.

The application discloses a kind of based on seabed sounding data's continental shelf automatic extraction method and device, method includes following steps: S1: based on seabed sounding data calculates the slope of each region;S2: based on seabed sounding data extracts the land therein;S3: based on the slope of each region, the cumulative slope cost of each position in the ocean to land is calculated;S4: based on cumulative slope cost, determine the best segmentation threshold of the continental shelf of each land;S5: according to the best segmentation threshold, the continental shelf of each land is extracted, and the continental shelf of all lands is merged;S6: the cavity inside the range of the merged continental shelf is eliminated, and the boundary of the continental shelf is smoothed.The present application is high in accuracy, and high in degree of automation.

The invention belongs to the field of petroleum and natural gas geological exploration, and provides a glauconite sandstone reservoir evaluation method which comprises the following steps: determining main control factors influencing reservoir physical properties; counting the actually measured content of the main control factors; establishing a semi-quantitative relationship between the actually measured content of each main control factor and reservoir physical properties, and determining a reservoir classification standard; establishing a logging prediction model of the content of each main control factor; and predicting the content of the main control factors by using the logging prediction model, and evaluating and classifying the glauconite sandstone reservoir by using a reservoir classification standard. The method can provide method support for optimization of the glauconite sandstone reservoir under the background of the land shed, and improves the trap risk evaluation precision and the trap drilling success rate, thereby reducing the oil and gas exploitation discovery cost.

The invention relates to the technical field of marine geological exploration sampling, and discloses a land frame area sandy sediment sampling device and method.The land frame area sandy sediment sampling device comprises an underwater robot, a movement mechanism is arranged on the underwater robot, sandy rock formed for a long time can be drilled, the influence of sea sand can be avoided in the drilling process, and the sampling efficiency is improved. Rock core samples in different shapes can be obtained through drilling, research is facilitated, drill bits for coring drilling in different shapes can be replaced during drilling, and the drilling efficiency is high; according to the sandy sediment sampling device, columnar sampling can be carried out on sandy sediment, sampling research can be carried out on the sandy sediment at different layer depths, sampling barrels after sampling can be collected, continuous sampling is achieved, and the efficiency is high; the multi-position sampling device is simple in structure, can move, realizes sampling at multiple positions, can realize adjustment of the sampling direction, and realizes extraction and sampling of sediments on the surface layer.

The invention relates to a sea-land transition phase water tank material source quantitative adjustment method and device, and belongs to the technical field of water tank tests. The device comprises a water tank, a material source box, a pneumatic stock bin and a storage bin. The material source box is connected with the storage bins through the pneumatic stock bin, and the material source box is connected with the water tank; the pneumatic stock bin comprises a feeding bin and a spiral ventilation pipe communicated with the feeding bin, and a plurality of air holes are formed in the peripheral wall of the joint of the feeding bin and the spiral ventilation pipe; a water inlet of the water tank is provided with a flow regulator, and the water tank is made of a transparent material. Through combined arrangement of the material source box, the pneumatic stock bin and the storage bin, variety diversification and adjustable control of material source particles are achieved, different kinds of material source particles are transported independently and are mutually independent, interference is avoided, and the accuracy and reliability of experimental results are improved.

The present application relates to a kind of test device and method of analog clastic flow deposition submarine fan, device includes support seat, water tank, stirring tank, circulating water supply component, laser scanning equipment and camera etc..Water tank is arranged in support seat, and one end of water tank is provided with continental shelf simulation platform;Turbidity meter, flowmeter and water level gauge are respectively arranged in water tank;Stirring tank is arranged above the continental shelf simulation platform, for accurate proportioning turbidity current;Circulating water supply component includes water pipe and water pump;Laser scanning equipment is arranged at the top of support seat, for real-time acquisition of the data of configuration change in the process that clastic flow forms submarine fan.Laboratory device angle is close to natural geological condition gradient, can realize accurate monitoring of turbidity current and clastic flow flow process;By adding camera, realize test whole process visual recording, cooperate with laser scanning equipment, both can capture dynamic process and obtain accurate configuration data and water body parameter, guarantee the integrity, reliability and relevance of test data.

The invention discloses a construction method of a cross-sea-area bridge pier column with an anti-cracking protection layer, which adopts a standard foundation part and a positioning assembly for positioning a water stop part to position the distance between a reinforcement cage and an anti-cracking structure, so that the thickness of the protection layer is accurately positioned, manual positioning and repairing are not needed, and the construction efficiency is improved. The problems that the distance between the bridge pier column main reinforcement and the anti-cracking structure is positioned inaccurately, and a welding spot between the anti-cracking structure and the positioning steel bar is prone to falling off, so that deviation is caused are solved, and the procedure that a special support and an operation platform need to be erected on a sea area continental frame silt layer for each pier column is omitted. The unsafe problem that an operator needs to climb a frame body and a crawling ladder to enter the steel mold for construction is solved; the construction efficiency problems that an existing concrete cushion block is prone to collapsing, falling, crushing, secondary adding, difficult mounting and fixing and the like are solved, out-of-site advanced die assembly and reinforcement of a pouring formwork of the pier column can be achieved, and the positioning precision of a protection layer is not affected by one-time overall hoisting on site.

The invention belongs to the technical field of marine surveying and mapping, and relates to a continental shelf slope toe line accurate extraction method considering terrain continuity. According to the method, on the basis of the precise recognition performance of rolling ball transformation on seabed negative topographic feature lines, two typical experimental groups are obtained by continuously adjusting the spatial scale threshold in the feature line extraction process and are named as a key group and a skeleton group respectively. On the basis, a concept of connected components in a graph theory is introduced to construct an importance grade division mode of a negative topographic feature line skeleton group, a multi-element continental shelf slope toe line screening process considering FOS geographic features is further fused, and finally, the accurate and efficient continental shelf slope toe line extraction method considering topographic continuity is realized. And a traditional method of collecting FOS construction connecting lines one by one is avoided through the thought of directly extracting the continental shelf slope toe lines, and the working efficiency of continental shelf external boundary delimiting work is improved to a certain extent.