4. E - Fixed Constructions
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  6. B
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Viscous oil recovery method

E - Fixed Constructions – 21 – B
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Viscous oil recovery method

E - Fixed Constructions – 21 – B
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Viscous oil recovery using electric heating and solvent...

E - Fixed Constructions – 21 – B
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Viscous oil recovery using emulsions

E - Fixed Constructions – 21 – B
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Viscous oil recovery using steam in horizontal well

E - Fixed Constructions – 21 – B
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Viscous petroleum recovery process

E - Fixed Constructions – 21 – B
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Viscous surfactant water flooding

E - Fixed Constructions – 21 – B
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Volume and pressure balanced rigid face seal for rock bits

E - Fixed Constructions – 21 – B
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Volume compensated shifting tool

E - Fixed Constructions – 21 – B
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Volume of investigation based image processing

E - Fixed Constructions – 21 – B
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Vortex chamber mud pulser

E - Fixed Constructions – 21 – B
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Wagon e.g. crawler drill wagon

E - Fixed Constructions – 21 – B
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Walking substructure device

E - Fixed Constructions – 21 – B
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Wall contacting tool

E - Fixed Constructions – 21 – B
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Warning device to prevent clutch burning on a well service rig

E - Fixed Constructions – 21 – B
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Wash tool

E - Fixed Constructions – 21 – B
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Washing a cylindrical cavity

E - Fixed Constructions – 21 – B
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Washout method and apparatus

E - Fixed Constructions – 21 – B
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Washpipe apparatus

E - Fixed Constructions – 21 – B
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Washpipe stabilisation

E - Fixed Constructions – 21 – B
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