Published January 2014

Improved die nipple for extracting the tubing from the well

Y. A. Ibrahimov

D. A. Iskandarov

During well operation in consequence of corrosion the faults occur in the tubes and thereby destruction with tubing break (flights) because of pipe thinning take place. Due to this breaks the pipes curve and by the axis take a spiral shape. The experience of repair in the well on tubing extracting show that applying of standard tools does not always give a positive result. Via improvement of die nipple applied ever in the old oil fields, a more qualitative one for extracting tubing from the well has been developed. The information on tool developing technology and the possibilities of applying depending on production casing and emergency pipe diameter is provided.