PIPE HAVING INSERT WITH ELECTRIC CABLES, CONNECTION METHOD FOR TWO PIPES AND METHOD OF ABOVE PIPE PRODUCTION Russian patent published in 2005 - IPC

FIELD: hydrocarbon production, particularly pipelines used during hydrocarbon production.

SUBSTANCE: device has pipe with the first end, the second end, inner side and outer side. Device also comprises cylindrical insert brought into engagement with inner side of the pipe and also having the first and the second ends. Groove is formed in cylindrical insert and extends in longitudinal insert direction. Electric cable is laid in the groove. The first end of the insert is provided with extension, the second one has depression. Extension of the first pipe is joined with depression of the second pipe to connect electric wires inserted in the pipes. Method of pipe connection involves arranging the first and the second pipes so that pipes are coaxial one with another; extension of cylindrical insert located in the first pipe is aligned with depression of that formed in the second pipe; connecting ends of electric cables located in the inserts. Method of pipe production involves cutting groove in outer cylindrical insert side; placing electric cable in the groove; forming extension on the first end of the insert and depression on the second end thereof; installing the insert in the pipe so that insert is coaxial thereto.

EFFECT: decreased effect on electric cable, increased ability of electric cable usage with any pipe, improved electric cable connection protection, increased speed and simplicity of above pipe connection.

14 cl, 16 dwg