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1294 results about "Oil spill" patented technology

An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution.The term is usually given to marine oil spills, where oil is released into the ocean or coastal waters, but spills may also occur on land.Oil spills may be due to releases of crude oil from tankers, offshore platforms, drilling ...

Seabed-based multipoint in-situ long-term observing system

The invention relates to a seabed-based multipoint in-situ long-term observing system which comprises a platform frame, a floating body material, an underwater sound communication apparatus, a beacon receiver, a monitoring cabin, a control cabin, a release control cabin, a central rotary table, a balancing weight and a microelectrode probing system. A main body of the platform frame is of a cylindrical shape and is divided into four layers from top to bottom; the floating body material, the underwater sound communication apparatus and the beacon receiver are mounted in the first layer, the monitoring cabin, the control cabin and the release control cabin are mounted in the second layer, the central rotary table is mounted in the third layer, and the balancing weight is mounted in the fourth layer. The seabed-based multipoint in-situ long-term observing system provided by the invention effectively realizes a multipoint precise positioning function so as to acquire data of a plurality of probing points in a probing region as required. Finally, spatial distribution information of an active diffusion field can be analyzed to provide an important data support for marine environment effect estimation of oil spill and aquo-complex decomposing process, thereby providing support and service for key projects such as submarine oil extraction and pilot production of natural gas hydrates.
Owner:QINGDAO INST OF MARINE GEOLOGY

Portable airborne offshore oil overflowing remote sense monitoring system

The invention provides a portable airborne marine oil spill remote sensing monitoring system, and relates to the marine pollution monitoring field. The system comprises an infrared/ultraviolet/multispectral digital camera, a central control and display system as well as a data management and image processing operation software system. The central control and display system records image information acquired by the infrared/ultraviolet/multispectral digital camera, and superposes the information with an electronic chart for on-line or off-line track playback; and the data management and image processing operation software system which is arranged in a portable industrial control computer of the central control and display system reads the image information, identifies oil spill on line, computes contaminated area on line and identifies thick oil film. The system has the advantages that the portable airborne marine oil spill remote sensing monitoring system can be expediently equipped on various ocean patrol planes without power supply from the planes; when a marine oil spill accident happens, the system can track the marine oil spill in real time, estimate oil spillage and the contaminated area, and evaluate the oil spill elimination effect.
Owner:DALIAN MARITIME UNIVERSITY

Hot-air balloon device for marine oil slick collection and processing

The invention belongs to the marine oil spill processing technology field and relates to a hot-air balloon device for marine oil slick collection and processing. The invention comprises the main body of a hot-air balloon device, a vortex generator and an oil-water separation device. The hot-air balloon device is symmetrically arranged along the central revolution axis. The main body of the hot-air balloon device comprises a power motor, a main body control system and a chemical reagent sprayer. The vortex generator comprises a universal shaft coupling and a vortex generator blade; the vortex generator rotates the sea water to generate vortexes and inhales mixtures into the device. The oil-water separation device comprises an oil suction pump, an oil storage tank, an oil interface detector, a water interface detector and a drainage pump; wherein the oil storage tanks are independently symmetric to the lower part of the two sides of the main body of the hot-air balloon device; a flexible oil storage bag is provided; after filled with oil, the flexible oil storage bag can float naturally in the sea. The invention can significantly increase the efficiency of oil slick collection and treatment, has good stability and flexibility in running and allows the implementation of multiple operations at the same time. The invention with a simple structure and easy manufacturing is suitable for treating large-scale marine oil spill accidents.
Owner:SHANGHAI JIAO TONG UNIV

Method for detecting oil spill at sea based on full-polarized synthetic aperture radar image

The invention discloses a method for detecting oil spill at sea based on a full-polarized synthetic aperture radar (SAR) image. The method includes the following steps: pre-treating polarized SAR data which require analyzing to obtain a full-polarized SAR covariance matrix; conducting refining polarized Lee filtering on the covariance matrix; based on the filtered covariance matrix or through a Stokes vector calculated by the covariance matrix, extracting 6 polarized features to constitute a feature combination; inputting training sample features with ground verification label information to a maximum likelihood (ML) classifier, training the classifier and optimizing parameters of the classifier; taking polarized features as input, utilizing the ML classifier to conduct detection and classification on an oil membrane; processing a classification result based on morphology, utilizing verification information of actual measurement to evaluate classification precision. According to the invention, the method can increase performances of oil spill at sea detection and classification methods and promote the application of the full-polarized SAR in actual engineering problems such as monitoring of oil spill at sea.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
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