Drilling and well operating equipment for offshore semi-submersible drilling ships namely riser and guideline tensioners, in-line/heave compensators, crown block compensators, pipe tensioners, and abandonment and recovery winches for pipe laying

'/heave':21 'abandon':29 'block':24 'compens':22,25 'crown':23 'drill':1,11 'equip':5 'guidelin':16 'in-lin':18 'lay':35 'line':20 'name':13 'offshor':7 'oper':4 'pipe':26,34 'recoveri':31 'riser':14 'semi':9 'semi-submers':8 'ship':12 'submers':10 'tension':17,27 'well':3 'winch':32

WESTECH

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