5 results about "Continental shelf" patented technology

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.

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 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.