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Petroleum sampling device suitable for petroleum geological exploration
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Low-temperature-resistant polymer insulating and heat-conducting composite material and processing technology
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Method for analyzing vibration fatigue characteristics of airborne case
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Early identification method for multi-source heterogeneous online network topics
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Resin plugging agent based on emulsion deformation, preparation method and application
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Gravity fire flooding effect prediction method by using vertical well sidetracking
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Method for quickly determining short-circuit current of power distribution network containing photovoltaic power supply
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Horizontal well automatic bit feeding system device based on well bottom bit pressure and control method
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Two-stage safety valve with real-time pressure monitoring function for fracturing pipeline
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Swing type drill rod connector for power faucet
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Detector for measuring metal defects of petroleum pipeline matrix
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Distributed station control cathode protection system
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Super wide angle refraction and diffraction cell-phone auxiliary lens
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Automatic gain adjusting device and system for single-core cable logging data transmission
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Method for calculating aperture average function of optical receiver with arbitrary complex shape and implementation device
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Heat transfer enhancement method based on enhanced flow-around device of SCV (flue gas pressure equalizing) flue gas uniform distributor
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Method for recovering palygorskite flow direction and original form of volcanic mechanism based on electric imaging logging
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Method and system for three-dimensional electromagnetic detection between wells
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Al (aluminum)2O3EAG eutectic ceramic and preparation method thereof
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Well wall crack and hole identification and judgment method based on oil-based mud electrical imaging logging
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