Large-bore system for deepwater casing and liner running comprising a cementing head, dart alignment submersibles, surge reduction tool, a liner hanger system with associated running tools, namely, polished bore receptacle, liner top packer, liner hanger, darts, plugs, centralizer submersibles, plug indicator, mechanical ball seat, auto-fill float valves, debris reduction shoe, reamer shoe, a rotating guide shoe and retractable shoe for use in the hydrocarbon exploration and production field

'align':16 'associ':26 'auto':48 'auto-fil':47 'ball':45 'bore':3,31 'case':7 'cement':13 'central':40 'compris':11 'dart':15,38 'debri':52 'deepwat':6 'explor':69 'field':72 'fill':49 'float':50 'guid':59 'hanger':23,37 'head':14 'hydrocarbon':68 'indic':43 'larg':2 'large-bor':1 'liner':9,22,33,36 'mechan':44 'name':29 'packer':35 'plug':39,42 'polish':30 'product':71 'reamer':55 'receptacl':32 'reduct':19,53 'retract':62 'rotat':58 'run':10,27 'seat':46 'shoe':54,56,60,63 'submers':17,41 'surg':18 'system':4,24 'tool':20,28 'top':34 'use':65 'valv':51

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