Hand operated tool for use in the oil, gas and energy industries, for use in wells that are subject to extreme temperatures and pressures such as wells that use steam to assist in heavy oil recovery, namely, an annular isolation tool for sealing space between concentric pipes that allows relative axial movement between the pipes and maintains a seal, in the form of a sliding sleeve sealing device

'allow':49 'annular':39 'assist':32 'axial':51 'concentr':46 'devic':68 'energi':11 'extrem':21 'form':62 'gas':9 'hand':1 'heavi':34 'industri':12 'isol':40 'maintain':57 'movement':52 'name':37 'oil':8,35 'oper':2 'pipe':47,55 'pressur':24 'recoveri':36 'relat':50 'seal':43,59,67 'sleev':66 'slide':65 'space':44 'steam':30 'subject':19 'temperatur':22 'tool':3,41 'use':5,14,29 'well':16,27

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