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481 results about "Deep water" patented technology

An underwater rock base leveling device and a leveling method thereof

The application provides an underwater broken stone base leveling device and a leveling method thereof, which comprises a ship body, the bottom of the ship body is provided with a leveling device, the leveling device comprises an outer frame, outer support leg oil cylinders are arranged at four corners of the outer frame, a sliding leveling mechanism is arranged on the outer frame, inner support leg oil cylinders are arranged at four corners of the leveling mechanism, and an elevation adjusting oil cylinder is arranged at the top of the leveling mechanism. The leveling device is automatically adjusted to be in a horizontal state, then the height of the outer frame is measured, the leveling head is automatically adjusted to a required height according to a set leveling thickness, the movement of the propelling oil cylinder is controlled, the leveling head is leveled at one station of the frame of the support, the walking type advancement of the leveling robot is realized through the interactive support of the four outer support leg oil cylinders and the four inner support leg oil cylinders, the overall device utilizes the fusion and coordination of multiple sensors, the automatic leveling of the underwater broken stone outer frame can be realized, the overall device is automatically leveled, and the problems that the traditional method is difficult to adapt to deep water and has low construction efficiency are overcome.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD

Under-balanced seal ring

A piping system for oil and gas in very deep water includes two opposing flanges and a seal ring between the flanges. Each flange has an annular ridge between concentric grooves. The seal ring has a radial web that connects longitudinal inner and outer sealing portions, which are received in the concentric grooves with the annular ridge received sealingly between the inner and outer sealing portions. The inner sealing portion of the seal ring is longer than the outer sealing portion. The web is as thick as or thicker than the inner and outer sealing portions. The seal ring comprises inner and outer concentric hollow cylinders having a non-uniform wall thickness and an annular rib that connects the hollow cylinders together, where one cylinder is longer than the other and where the rib has a longitudinal thickness that is as great as the radial thickness of the walls of the hollow cylinders.
Owner:LTS ENERGY INC

Intelligent sensing type photoelectric composite armored cable for deep-sea mining equipment

The invention relates to the technical field of composite armored cables, and discloses an intelligent sensing type photoelectric composite armored cable for deep-sea mining equipment, which comprises a cable core formed by twisting a plurality of power cable core conductors, an optical fiber communication unit, a medium conveying pipeline and an intelligent sensing unit, and an outer coating layer, tin-plated annealed copper wires and high-strength copper foil wires are arranged in a conductor of the power cable core, an insulation shielding layer is wrapped outside the conductor, the intelligent sensing unit integrates a plurality of optical fibers and optical fiber grating sensors, a loose structure is arranged outside the intelligent sensing unit, one intelligent sensing unit is used for monitoring strain distribution, the other intelligent sensing unit is used for monitoring temperature distribution, and other redundant optical fibers are used as redundant backups. A certain length of grid region interval is preset, distributed measurement along the length of the cable is realized, a sensing optical fiber in the intelligent sensing unit is connected to an optical fiber demodulator of a deck control room, a software system displays strain, temperature, vibration and form data of each point of the cable in real time, an alarm threshold value is set, and the structure is highly integrated and can adapt to a deepwater environment.
Owner:MARINE TECHNOLOGY INNOVATION CENTER YANGTZE DELTA

Remote sensing image atmospheric correction method and system for offshore scene

The embodiment of the invention provides a remote sensing image atmospheric correction method and system for an ocean near-shore scene, and relates to the technical field of ocean remote sensing image atmospheric correction. According to the method, after remote sensing data is obtained, solar flare correction is executed by extracting a target mask and using a secondary simulation model of a satellite signal in a solar spectrum. And then a multi-band darkness index is calculated, and an optimal aerosol optical thickness value is inverted through a radiation transmission model. And calculating the atmospheric correction coefficient of each wave band according to the optimal aerosol optical thickness value so as to generate correction result data. According to the method, on the basis of robust flare correction of the SWIR proxy, scene-adaptive flare proxy is constructed by utilizing water body reflection and path radiation physical characteristics of the SWIR under a deepwater condition, and flare deduction is realized. Inversion is carried out through multiband combined darkness indexes, and the spectral characteristics of the deep water body reflected in the visible spectrum are utilized, so that single-band random noise is smoothed, and the accuracy of an AOT estimation result is improved.
Owner:XINGHAN SPACE TIME (SHENZHEN) AEROSPACE INTELLIGENT TECHNOLOGY CO LTD

Deepwater explosion container dynamic response prediction method

PendingCN122021323ABiological modelsDesign optimisation/simulationData setApplicability domain
The invention discloses a deep-water explosion container dynamic response prediction method, and relates to the technical field of deep-water structure safety protection, a deep learning prediction model is established, material characteristic parameters and external load parameters are taken as inputs, container dynamic response indexes are taken as outputs, model training, verification and testing are carried out by using a sample set, and a deep-water explosion container dynamic response prediction model is obtained. And a deep-water explosion container dynamic response prediction model capable of rapidly predicting the dynamic response of the container is obtained. According to the method, a high-quality training data set is constructed through numerical simulation, so that the physical authenticity and prediction precision of a machine learning model are ensured; and the trained model can realize rapid prediction of dynamic response, so that the problem that the precision and the efficiency are difficult to balance in the existing method is effectively solved, and the requirements of rapid evaluation and real-time early warning in engineering are met. The data set contains the explosion load parameters and the deepwater environment parameters, the defect that the application range of a traditional empirical formula is narrow is overcome, and the engineering application cost is reduced.
Owner:WUHAN UNIV OF SCI & TECH

Adsorption pressure return type blowout control method

The invention provides an adsorption pressure return type blowout control method, which comprises the following steps: intervening when well control abnormity occurs at the beginning (such as overflow precursor), compounding a methane adsorbent and a conventional drilling fluid additive to prepare high-density composite well control fluid, and injecting the high-density composite well control fluid into a shaft by a special device at a position 100-200m below a wellhead according to preset displacement and pressure parameters. According to the method, bubbles in a shaft are adsorbed through an adsorbent, the slippage speed and the gas phase volume fraction are reduced, and the synergistic effect of static pressure constraint and active adsorption is achieved. Therefore, back pressure fluctuation can be stabilized in the early stage of gas cut, gas column expansion and pressure rising are limited, the risk of pressure leakage and secondary eruption is reduced, the purpose of preventing or restraining blowout is achieved, and the gas cut blowout prevention device is suitable for complex working conditions such as fractured stratums, deep water, high temperature and high pressure and narrow-density windows.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Hydrostatic pressure simulation device and method for sampling under pressure

The application discloses a kind of static water pressure simulation device and pressure sampling method with pressure, it is related to sediment-water interface biogeochemical process simulation technical field, the application includes container cylinder, top sealing installation has sealing cylinder cover;Pressure gauge and temperature table are located on sealing cylinder cover;Air inlet assembly and air release assembly are located on sealing cylinder cover;Discharge pipe is located in the lower part of container cylinder, and first control valve, sampling tube, second control valve are sequentially connected in series.The application has broken through to realize the sampling without pressure relief under the condition of in-situ static water pressure, effectively avoids systematic error caused by dissolved gas due to decompression escape;It is suitable for a variety of sediment types and gas types, and provides a high-fidelity experimental platform for greenhouse gas emission research under extreme conditions of deep water reservoir, thermal stratification area;Provide key data support and methodological basis for constructing pressure-corrected methane flux model and deep water carbon emission inventory, serve the national "double carbon" strategy and global change research needs.
Owner:SHANGHAI UNIV

An experimental device and experimental method for simulating and evaluating instability and sand production of an ultra-deep water and ultra-shallow gas reservoir

The present application belongs to the field of deep and deepwater oil and gas resource development and exploitation in the oil and gas exploitation industry, and particularly relates to an experimental device and method for simulating and evaluating instability and sand production of an ultra-deepwater ultra-shallow gas reservoir. The present application provides a complete evaluation experimental device, experimental condition setting method, experimental method and quantitative evaluation method for evaluating the whole process of reservoir and interlayer instability and sand production in the process of ultra-deepwater ultra-shallow gas exploitation, and can realize process simulation and quantitative evaluation, thereby providing direct support for the selection and design and implementation of sand control completion methods for ultra-deepwater ultra-shallow gas reservoirs.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Deep-sea high hydrostatic pressure resistant ionic polymer hydrophone structure and assembly method

The invention provides a deep-sea high hydrostatic pressure resistant ionic polymer hydrophone structure and an assembly method, and belongs to the technical field of underwater acoustic sensing, the deep-sea high hydrostatic pressure resistant ionic polymer hydrophone structure comprises an upper shell, a shielding copper net, a substrate, a circuit board, a lower shell, a dry state sensitive film, a screw, a pressing plate, a positive electrode and a negative electrode, the shielding copper net is arranged at the top of the lower shell, a dry-state sensitive film is fixed on the front surface of the substrate, a circuit board is adhered to the back surface of the substrate, the substrate is inserted into the lower shell, a cavity at the lower part of the substrate is encapsulated and cured, and after the pressure-resistant shell is packaged, water is injected into the shell of the ionic polymer hydrophone and defoaming is performed. And finally, sealing and curing the water injection hole of the lower shell by using a sealant to form the ionic membrane polymer hydrophone. According to the invention, perfect packaging, low sound wave loss and good low-frequency sensitivity of the hydrophone in a deep water condition can be ensured, and the hydrophone has important popularization and application values for the work of the hydrophone in a deep sea level.
Owner:XI AN JIAOTONG UNIV +1

Floating type fan platform

The utility model discloses a floating type draught fan platform which comprises a buoy temporarily supported on a supporting column, the buoy is connected with the draught fan platform through a vertical steel cable, during construction, after a draught fan is provided with part of components, the draught of the floating type draught fan platform is increased, the buoy is emptied to provide vertical buoyancy, part of the weight of the draught fan is offset, and after the draught fan is hoisted, the buoy is connected with the draught fan platform through the vertical steel cable. The method comprises the following steps: dragging a floating fan platform to a deepwater area, injecting water into the platform to sink in the deepwater area, injecting water into the buoy to sink, and after the buoy is supported on a supporting structure of the platform, releasing a vertical connecting steel cable of the buoy and the platform, draining ballast water of the buoy, floating the buoy, separating from the platform, assisting in displacement of the buoy, and finishing installation of the fan. Construction is completed under the condition that the water depth of a wharf is insufficient by combining the separated floating cylinder with the fan platform.
Owner:POWERCHINA ZHONGNAN ENG

Deep water towing tank PIV system calibration target posture adjusting mechanism and use method

The application discloses a calibration target posture adjusting mechanism of a deep water towing pool PIV system and a use method thereof. The posture adjusting mechanism is connected with the PIV system, and the structure of the posture adjusting mechanism is as follows: a flat base is provided, a lower adjusting plate is mounted on the flat base, an upper adjusting plate is mounted above the lower adjusting plate in a matched mode, a yaw angle adjusting module and a roll angle adjusting module are respectively mounted at two ends of the flat base, two vertical supports vertically downward are fixed to the bottom surface of the flat base, a horizontal support is mounted between the two vertical supports through fasteners, a calibration target frame is mounted between the two vertical supports below the horizontal support, a calibration target is fixedly mounted in the calibration target frame, grooves are formed in the two ends of the upper edge frame and the lower edge frame of the calibration target frame, cuboid aluminum rods are placed in the grooves, and a silicon reflecting mirror is mounted at the outer end of the calibration target frame. A reference block is further arranged on the top surface of the posture adjusting mechanism, two vertical lines are fixed to the reference block, and a counterweight is arranged at the bottom of each vertical line. The adjusting precision is high.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

A method for judging ancient ocean water body environment

The application provides a method for judging ancient marine water body environment. The method comprises the following steps: obtaining a target shale reservoir core sample in a work area; wherein the target shale reservoir is radiolarian siliceous shale lamina; determining the composition of the shell cavity filling and the filling amount of calcite in the shell cavity in the target shale reservoir based on the target shale reservoir core sample; and determining the ancient marine water body environment during the deposition period of the target shale reservoir in the work area according to the composition of the shell cavity filling and the filling amount of calcite in the shell cavity in the target shale reservoir. The method for judging ancient marine water body environment can effectively combine the oxidation-reduction state of the ancient marine deep water body and the precipitation and dissolution conditions of calcite, so as to better promote the reconstruction of the ancient marine environment.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

A composite ecological restoration system and method for agricultural non-point source pollution of lakes

This invention provides a composite ecological restoration system and method for agricultural non-point source pollution in lakes. The system includes several pre-treatment reservoirs located at the lake's edge, each including a sedimentation zone, a shallow water purification zone, and a deep water purification zone; several water quality improvement wetlands adjacent to the pre-treatment reservoirs; several ecological interception ditches located at the entry points of agricultural non-point source pollution into the lake; a shoreline ecological interception zone surrounding the lake and located along its shoreline; an ecological enclosure adjacent to the water quality improvement wetlands, within which a submerged plant restoration zone is arranged; several submerged plant restoration zones are located inside the ecological enclosure; and ecological floating islands are evenly distributed within the lake. This invention can effectively address the complex and variable nature of lake non-point source pollution, improve the treatment effect of lake non-point source pollution, and achieve the goal of treating different types of lakes.
Owner:POWERCHINA JIANGXI ELECTRIC POWER ENGINEERING CO LTD

Swing jet flow cutter suction type dredging device

The invention discloses a rotating and swinging jet flow cutter suction type dredging device which comprises a buoyancy tank platform provided with a vacuum jet flow pump connected with a driving mechanism and a guiding mechanism. The driving mechanism comprises a first hydraulic telescopic rod and a second hydraulic telescopic rod which are perpendicular to each other, one ends of the first hydraulic telescopic rod and the second hydraulic telescopic rod are hinged to the buoyancy tank platform, and the other ends are connected with the side wall of the vacuum jet pump through universal joints. The guide mechanism comprises an inner guide sleeve and an outer guide sleeve which are connected to the outer side of the vacuum jet pump in a sleeving mode, the inner guide sleeve and the vacuum jet pump are connected through a left rotating shaft and a right rotating shaft which are coaxially arranged, a front rotating shaft and a rear rotating shaft which are coaxially arranged penetrate through the outer guide sleeve, one end of the front rotating shaft and one end of the rear rotating shaft are connected with the inner guide sleeve, and the other end of the front rotating shaft and the other end of the rear rotating shaft are connected with the buoyancy tank platform. The outer guide sleeve is provided with a front-back avoiding groove allowing the inner guide sleeve to pass through. And the vacuum jet pump is connected with the hinge suction head, the high-pressure gas conveying pipe and the sludge conveying pipe. The requirement for full-water-depth desilting from shallow water to deep water is met, the desilting efficiency is high, and operation is safe, easy and convenient.
Owner:YELLOW RIVER ENG CONSULTING CO LTD

Water environment monitoring device with depth adjusting function

The invention provides a water environment monitoring device with depth adjustment, and belongs to the technical field of water environment monitoring equipment, and the device comprises a floating platform which is suspended on a water surface to be monitored and provides buoyancy support for water environment monitoring; the lifting platform is arranged below the floating platform, and a collector for collecting water is fixedly arranged at the lower end of the lifting platform; the shallow layer lifting drive is arranged on the floating platform and is used for driving the lifting platform to lift and move in the shallow layer water body and collecting samples of different depths of the shallow layer water body; the deep-layer lifting drive is arranged on the floating platform and used for driving the lifting platform to lift and move in the deep-layer water body and collecting samples of different depths of the deep-layer water body; the lifting platform is controlled to ascend and descend in a shallow water body and a deep water body through the shallow lifting drive and the deep lifting drive respectively, flexible switching is achieved in combination with the locking mechanism, and therefore the problems that the monitoring depth of a traditional device is fixed, and deep samples cannot be obtained are solved.
Owner:连云港市环境监测监控中心(连云港市海洋生态环境监测中心)

Novel deepwater net bag

The utility model discloses a novel deepwater net bag which comprises a frame body, the edge of the bottom of the frame body is provided with a net body through a clamping and pressing assembly, one end of the top of the frame body is integrally provided with a connecting sleeve, and the end of the connecting sleeve is connected with a detachable handle through a quick dismounting assembly. Reinforcing ribs are distributed at the joint of the connecting sleeve and the frame body; the circle of clamping groove and the clamping plate matched with the clamping groove are designed on the edge of the bottom of the frame body, the edge of the net opening of the net body is attached to the interior of the clamping groove, the net opening is pressed through the clamping plate, and then the net body is fixed by penetrating the screws through the corresponding screw holes, so that the installation firmness of the net body is improved; a plurality of reinforcing ribs are designed at the joint of the connecting sleeve and the frame body, so that the whole structure is more stable, can be suitable for reciprocating movement in deep water, and is not easy to deform; according to the utility model, the handle which can be quickly assembled and disassembled is designed, so that quick and flexible assembly and disassembly are realized.
Owner:NINGBO HUIYONG POOL PROD CO LTD

A kind of auxiliary construction equipment for rapid construction of deep water immersed concrete pile cap

The application discloses a kind of auxiliary construction equipment for quick construction of deep water immersed concrete deck, including horizontal plate, horizontal plate rotation connection support column, support column lower end hinged connection curved bar, support column outside hinged connection thrust device, thrust device and curved bar hinged connection, the curved bar includes first branch and second branch, first branch and second branch hinged connection and set first torsional spring, first branch and support column lower end hinged connection and set second torsional spring, thrust device and second branch hinged connection.The auxiliary construction equipment is hoisted horizontal plate in the central position of pile column, and driving motor drives support column to rotate to corresponding construction position, and press bending is carried out on the reserved steel bar extended one by one.By controlling the extension of thrust device, the cylindrical side push vertical rod translates, the rolling column rises on the arc block, and the relative bending of the first branch and the second branch is matched, the lifting and press bending of the middle part of the reserved steel bar are realized, the bending operation of the reserved steel bar is facilitated, and the work efficiency is improved.
Owner:CHINA CIVIL ENG CONSTR CORP

Real-time collection device and method for deep water layer VSCs gas

The invention discloses a real-time collection device and method for deepwater layer VSCs gas, and belongs to the technical field of sewage treatment.The real-time collection device comprises a gas collection assembly used for collecting the deepwater layer VSCs gas; the gas conveying assembly is connected with the gas collecting assembly through a first connecting pipe so as to convey inert gas into the gas collecting assembly; the gas collecting assembly is connected with the gas collecting assembly through a second connecting pipe, and gas in the gas collecting assembly is collected; the first connecting pipe and the second connecting pipe are each provided with a switch valve. According to the method, in-situ pressure-maintaining collection of the VSCs in the deep water layer of the sewage treatment plant is realized, original components of gas can be completely reserved, precision equipment is protected, the cost is low, the application scene is wide, and accurate data support is provided for odor pollution control.
Owner:BEIJING UNIV OF TECH

Large caisson offshore long distance floating multi-tug towed marshalling method

PendingCN122406789AOceanographyCaisson
The application provides a large caisson offshore long-distance floating towing multi-tugboat towing marshalling method, which adopts a main tugboat and four auxiliary tugboats to form a formation; the main tugboat is located at the front of the formation to pull the caisson, and the auxiliary tugboats are distributed around the caisson to control the direction and posture of the caisson through pushing or side towing; the method includes four-stage marshalling conversion: from leaving the dock to the shallow water area, the main tugboat is hoisted and towed in cooperation with 2-4 auxiliary tugboats to control the range of the caisson through side towing and pushing; from the shallow water area to the deep water area, the main tugboat is hoisted and towed in the front, one auxiliary tugboat is stably towed in the rear, and the remaining auxiliary tugboats are on standby; from the deep water area to the shallow water area, the main tugboat is hoisted and towed in cooperation with the auxiliary tugboats on both sides through mixed marshalling of side towing and pushing, and the rear auxiliary tugboat is pushed; from the shallow water area to the bridge position, the four auxiliary tugboats are converted to push the caisson on both sides, and the main tugboat is released and leaves; through the multi-tugboat stage-by-stage cooperation, the method realizes the accurate control and safe positioning of the large caisson offshore long-distance floating.
Owner:CCCC FIRST HIGHWAY XIAMEN ENGINEERING CO LTD +2

Deepwater drilling system and deepwater drilling method

PendingCN121539206AUnderwater drillingFlushingDeepwater drillingWell drilling
The invention belongs to the technical field of deepwater drilling, and discloses a deepwater drilling system and a deepwater drilling method. The deepwater drilling system comprises a drilling ship, a waterproof unit, a regulation and control device, a blowout prevention device and a drilling device. The upper end of the waterproof unit is connected with a drilling ship and provided with a first penetrating channel. The regulation and control device is arranged at the lower end of the waterproof unit and provided with a plurality of connecting channels. The connecting channel has an open state and a closed state, and in the open state, the first penetrating channel communicates with the outside through the connecting channel. And the blowout preventer is arranged at the wellhead and is connected with the waterproof unit. And the first penetrating channel can be communicated with a second penetrating channel of the blowout preventer. The drilling device is arranged on the drilling ship and penetrates through the first penetrating channel, the second penetrating channel and the well mouth. The well drilling device is provided with a conveying channel, and drilling fluid can be conveyed to the lower end of the well drilling device through the conveying channel. When the system is used for drilling operation, the pressure borne by a stratum at a wellhead can be effectively reduced, and stratum fracturing is avoided.
Owner:GUANGZHOU MARINE GEOLOGICAL SURVEY

Deepwater reservoir stratified reaction simulation system based on temperature-oxygen coupling regulation and control

The invention discloses a deepwater reservoir stratified reaction simulation system based on temperature-oxygen coupling regulation and control, and relates to the technical field of water quality evolution simulation, the system comprises a reactor, a dissolved oxygen and temperature stratified control unit, a sediment-water interface simulation assembly, a simulation hydraulic disturbance unit and an intelligent monitoring unit; the dissolved oxygen and temperature layered control unit is used for regulating and controlling environmental parameters of the reactor, the sediment-water interface simulation assembly is embedded into the bottom of the reactor, the hydraulic disturbance simulation unit and the reactor form a circulating flow channel through a pipeline, and the intelligent monitoring unit is erected at the top of the reactor. The embodiment of the invention initiates a temperature gradient and dissolved oxygen layering coupling regulation and control technology, linear / nonlinear temperature layering of a surface layer, a middle layer and a bottom layer is realized through an axially distributed semiconductor gradient temperature control group and a surrounding type constant temperature system, meanwhile, a temperature field and a dissolved oxygen field are dynamically coupled, and physical and chemical layering characteristics of a deep water reservoir are accurately simulated.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Underwater concrete pouring device for simulating large water depth environment

The utility model discloses an underwater concrete pouring device for simulating a large water depth environment in the technical field of underwater concrete construction, which comprises a container assembly, a mold assembly arranged in the container assembly, a guide pipe connected to the middle of the top of the container assembly, a support arranged at the top of the container assembly, and a floating ball arranged in the guide pipe. The right side of the top of the container assembly is connected with an air pipe, and the end, away from the container assembly, of the air pipe is provided with a vacuum pump. The container assembly, the guide pipe, the floating ball, the mold assembly, the air pipe, the vacuum pump, the discharging hopper and the lifting rope are arranged in a matched mode, the pressure difference in the underwater pouring process is created in the mode that the vacuum pump sucks negative pressure, and underwater concrete pouring under the actual working condition is conducted by simulating the pressure difference under the large water depth condition. A test basis is provided for selecting a concrete mix proportion test under a real pouring condition, and the optimization of a concrete formula is facilitated.
Owner:HANGZHOU GUODIAN DAM SAFETY ENGINEERING CO LTD +1

Generation of Electrical Power Offshore

A floating power-generation group comprises a floating hub such as a spar buoy that is anchored to subsea foundations by anchor lines. Floating power producer units such as wind turbines are connected electrically and mechanically to the hub. The power producer units are each moored by mooring lines. At least one mooring line extends inwardly toward the hub to effect mechanical connection to the hub and at least one other mooring line extends outwardly toward a subsea foundation. The groups are combined as a set whose hubs are connected electrically to each other via subsea energy storage units. Anchor lines of different groups can share subsea foundations. The storage units comprise pumping machinery to expel water from an elongate storage volume and generating machinery to generate electricity from a flow of water entering the storage volume. The pumping machinery can be in deeper water than the generating machinery.
Owner:SUBSEA 7 NORWAY AS

Ocean in-situ microorganism culture and detection system based on fluorescence detection

The invention discloses an ocean in-situ microorganism culture and detection system based on fluorescence detection. The ocean in-situ microorganism culture and detection system comprises an overwater monitoring platform, a shore-based transfer module and an underwater experiment platform. The underwater experiment platform integrates an automatic sampling module, a multi-culture-medium module, a temperature control module, a fluorescence detection module, an environment monitoring module, a cleaning and disinfecting module and a data processing module. The system adopts a six-channel parallel architecture, five detection channels operate independently, and another contrast channel is arranged for batch pollution verification. The fluorescence detection module can perform quantitative analysis on endogenous and exogenous fluorescence signals, and the environment monitoring module synchronously collects salinity, pH, temperature and depth and fuses the salinity, pH, temperature and depth with detection results, so that the accuracy is improved. And the cleaning and disinfection module adopts a pure water-alcohol-pure water-ultraviolet process, so that the risk of cross contamination is reduced. The system supports hybrid energy supply of shallow water solar energy and deep water friction nanometer power generation, can independently run in a deep sea environment for a long time, and realizes high-flux, sensitive and stable microorganism in-situ detection.
Owner:HAINAN UNIV

A method for predicting rock physical shear wave velocity of deep water ultra-shallow natural gas reservoir

The present application relates to the geological exploration technical field, more particularly, to a deep water super shallow layer natural gas reservoir rock physics shear wave velocity prediction method, comprising: calculating equivalent bulk modulus, shear modulus and density of a plurality of mineral mixed matrix according to shale content; then calculating skeleton bulk modulus and shear modulus; then calculating saturated rock bulk modulus and shear modulus through a model, and calculating saturated rock density through rock matrix density; distributing longitudinal and transverse velocities of suspended state and bearing state, and calculating equivalent longitudinal and transverse wave velocities; using equivalent longitudinal wave velocity to construct an inversion objective function with longitudinal wave velocity as a known condition; comparing actual longitudinal wave velocity with calculated longitudinal wave velocity; realizing nonlinear inversion of transverse wave velocity according to an algorithm, and obtaining transverse wave velocity of a to-be-inverted work area. The present application simultaneously considers rock physics models of particle suspended state and bearing state, and realizes transverse wave velocity prediction and deep water super shallow layer natural gas reservoir transverse wave velocity direct inversion.
Owner:HAINAN BRANCH OF CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD

An efficient flowback device and method for testing an ultra-deep water and ultra-shallow gas horizontal well

The application relates to an efficient flowback device and method for testing a horizontal well of super-deep water and super-shallow gas, which comprises a wellhead device, a first data monitoring device, a replacement slurry water injection device, a coiled tubing, a coiled tubing gas injection device, a data processing and response device and a flowback fluid treatment device; the coiled tubing is connected with the replacement slurry water injection device and the coiled tubing gas injection device through the wellhead device; the first data monitoring device is arranged on the lower side of the wellhead device, and the flowback fluid treatment device is connected with the side of the wellhead device; the data processing and response device is connected with the replacement slurry water injection device, the coiled tubing gas injection device, the flowback fluid treatment device and the first data monitoring device through transmission optical fibers. The application adopts a collaborative scheme of pre-reducing liquid column pressure by using replacement slurry water and injecting gas through the coiled tubing to realize efficient removal of liquid accumulation in the whole horizontal section under the premise of protecting the reservoir and avoiding well leakage, thereby providing technical support for testing and development connection of super-deep water and super-shallow gas reservoirs.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A floating monitoring station for water quality detection

This invention relates to the field of float monitoring station technology, specifically disclosing a float monitoring station for water quality testing, comprising: a buoy structure, a propulsion device, and a sampling device. The buoy structure is capable of floating on the water surface; the propulsion device is disposed on the top surface of the buoy structure near the center; two sets of sampling devices are symmetrically arranged at the output end of the propulsion device, and the two sampling devices can move up and down under the limitation of the propulsion device. The two sampling devices can sample the shallow and deep water of the target water area respectively. The propulsion device and the sampling devices cooperate with each other to improve the detection quality and accuracy after water quality sampling. In summary, this invention achieves efficient and accurate sampling of different water layers through the layered layout of dual sampling devices, precise positioning of high-precision drive components, and synergistic design of sampling end rotational motion mixing, combining the representativeness of sampling data with the stability of equipment operation, thereby providing high-quality and high-precision test water for subsequent detection.
Owner:TAIZHOU CHENGXING ENVIRONMENTAL TESTING TECH CO LTD

Solar aerator

The utility model discloses a solar aerator, and particularly relates to the technical field of aerators. The solar aerator comprises a buoy, an air pump and a solar power generation assembly are installed at the top of the buoy, an air delivery pipe is installed on the air pump, an air outlet assembly is installed at the end, away from the air pump, of the air delivery pipe, the solar aerator further comprises an insertion rod, the length of the insertion rod is larger than 3 m, and a top plate is fixed to the top end of the insertion rod. A rear rope is installed at the bottom of the top plate, and the bottom end of the rope is fixed to the air outlet assembly. The solar aerator provided by the utility model can be used for directly aerating a deep water body and improving the oxygen deficit condition of a bottom water body.
Owner:JIANYANG DAZHONG BREEDING CO LTD

Water level monitoring and early warning device

ActiveCN224122015USolve the problem of inconvenient monitoring of water levels at deeper depthsHuman health protectionLevel indicators by floatsEnvironmental engineeringMechanical engineering
The utility model relates to the technical field of water level monitoring, and discloses a water level monitoring early warning device which comprises a supporting column, the top of the supporting column is fixedly connected with a connecting column, one side of the connecting column is provided with a signal receiver, the bottom of the signal receiver is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with a water level sensor. The mounting frame is fixedly connected with the connecting column through screws, a triangular fixing plate is fixedly connected to the bottom of the mounting frame, and one side of the triangular fixing plate is fixedly connected with the connecting column. By arranging the fixing assembly and the extension assembly, the device adapts to different installation environments through the fixing assembly, and monitors the water level at a deeper position through the extension assembly, so that the problems that the existing water level monitoring and early warning device is generally fixed by screws, but the fixing mode is difficult to adapt to different installation environments, and the water level monitoring and early warning device is inconvenient to use are solved. The water level monitoring part is inconvenient to recycle, and a traditional water level monitoring device is inconvenient to monitor the water level at the deep position.
Owner:GUILIN HENGCHENG ENG QUALITY TESTING CO LTD