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GB9325885D0
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Method of analysing drilling fluids
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GB9325871D0
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Drilling fluid
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GB9325393D0
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Cement additives
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GB9313081D0
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Selective zonal isolation of oil wells
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GB9309439D0
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Additives for water-based drilling fluid
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GB9303321D0
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Apparatus and method for measuring the sticking tendency of drilling mud
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EP0463662A1
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Packing for piston and valve machine and a machine applying same
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EP0401936A2
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Method and means for the temporary plugging of pipelines
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GB9010088D0
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Deployment and recovery of pre-packed screens
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BR9001977A
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Method of control of release of encapsulated reducers
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EP0380151A1
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Delayed rigid foam systems and applications in particular for plugging - selective treatments in the oil industry
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EP0380150A1
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Delayed rigid foam systems and applications in particular for selective plugging treatments in the oil industry
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EP0377255A1
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Cementing head for oil wells
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EP0377234A1
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Method and apparatus for monitoring the integrity of coiled tubing
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EP0374984A1
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Process for predicting the performance quality of an oil bore hole cementation and evaluating this performance
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EP0347975A2
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Delayed crosslinking system for fracturing fluids
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EP0314242A1
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Additives for oilfield cements and corresponding cement slurries
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EP0296648A1
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Liquid metering system with a broad range of volumes, viscosities and applications chiefly for oil-sector fluids
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EP0286152A1
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Matrix treatment process for oil extraction applications
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EP0280341A1
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Fracturing fluid slurry concentrate and method of use
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