The invention discloses an intelligent well cementation slide sleeve separate-layer fracturing transformation process
pipe column without stage limitation. The
pipe column is designed for realizing the separate layer transformation of a straight well of an oil-gas well without stage limitation and meeting the
process requirements of multi-stage fracturing transformation of oil-gas fields, the
pipe column is arranged in a
cement ring, the upper end of the pipe column is connected with a well opening, the pipe column consists of multi-stage intelligent well cementation slide sleeves, a floating hoop and a floating shoe, the multi-stage intelligent well cementation slide sleeves are connected through a sleeve, and the floating hoop and the floating shoe are arranged at the
tail end of the pipe column. A
piston is arranged in the intelligent well cementation slide sleeve cavity, an upper tube body is provided with a radial fracturing end opening, and a hydraulic pipeline for communicating a two-position four-way
electromagnetic valve, a battery, a
wireless sensing receiving device, an antenna, a water tank, an upper cavity of the tube body and a lower cavity of the tube body is buried in a groove formed in the tube wall of the lower tube body. The pipe column has the advantages that the separate-layer fracturing transformation without stage limitation can be realized, the construction period can be greatly shortened, the cost is saved, the international products can be replaced, the drilling work intensity can be reduced, electronic balls can be directly thrown for opening the first layer well cementation slide sleeve, the perforation is not needed, after the fracturing completion, all slide sleeves can be opened through ball throwing, the full through
diameter can be realized, and the drilling and
grinding well control risk can be reduced.