| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: method consists in installation of polyethylene pipes of smaller diameter into tubing, pressure balancing inside the tubing and polyethylene pipes by means of holes in upper and lower parts of polyethylene pipes, attachment of polyethylene pipes with the aid of rubber bushings. According to the invention the inner surface of tubing is cleaned in the course of polyethylene pipes installation by means of metal bushing mounting at the lower end of polyethylene pipe. The diameter of metal bushing outer annular projection is equal to tubing inner diameter, the diameter of inner annular projection is made equal to inner diameter of polyethylene pipe. Note that the appearance of local resistance, deceleration and increase of hydraulic resistance in the elevator is excluded by means of making holes in polyethylene pipe at an angle of 45 degrees in the direction of gas flow. ^ EFFECT: increasing the efficiency of the method. ^ 2 cl, 1 dwg |
