FIELD: mining.
SUBSTANCE: invention comprises the steps of: (i) providing a pipe including at least two sections, each section comprises annular space insulation means, a selective flow path between the inner tube region and the outer region and the through bore isolation means for selective clogging the pipe through bore; (ii) moving the pipe into the well; (iii) isolating the annular space between the outer region of the pipe and the well to create at least two isolated zones; (iv) selecting any zone for fracturing; (v) remote opening the flow path in the pipe portion corresponding to the selected zone so as to allow the fluid flow between the inner region and the outer region of the pipe; (vi) remote insulating the through bore of the pipe so as to seal the through bore by closing the through bore insulation means in the pipe portion corresponding to the selected zone so as to prevent fluid from flowing along the through bore; and (vii) fracturing at least a part of the formation surrounding the well.
EFFECT: increasing the efficiency of fracturing.
19 cl, 11 dwg
