FIELD: driving or forcing casings or pipes into boreholes, particularly to install pipe spool in well drilled in ground and means for radial pipe spool expansion initiation in ground.
SUBSTANCE: method to install pipe spool including several expandable tubular members in well involves arranging the first tubular member in well and installing the second tubular member in well so that the second tubular member end enters end part of the first one to create overlapped pipe spool section, wherein said overlapped section is arranged inside well; arranging deformable body around overlapped section; expanding end part of the second tubular member in radial direction towards end part of the first tubular member so that end part of the first tubular member expands in radial direction to deform said deformable body. System comprises reamer for tubular member expansion, executive mechanism for reamer passage through tubular member, anchor to connect executive mechanism to tubular member and plug to seal lower end part of tubular member. The plug is located from reamer side opposite to executive mechanism and is releasably connected to reamer.
EFFECT: improved pipe spool installation in well.
19 cl, 13 dwg
