Oil and gas machine tools for creating a seal within tubular strings, namely, an expandable packer providing mechanical zonal isolation across large washouts and providing full-bore, high-expansion openhole isolation

'across':21 'bore':28 'creat':7 'expand':15 'expans':31 'full':27 'full-bor':26 'gas':3 'high':30 'high-expans':29 'isol':20,33 'larg':22 'machin':4 'mechan':18 'name':13 'oil':1 'openhol':32 'packer':16 'provid':17,25 'seal':9 'string':12 'tool':5 'tubular':11 'washout':23 'within':10 'zonal':19

OPTIBORE

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