DEVICE FOR WELL SWABBING

摘要

FIELD: mining, more specifically, technique of formation stimulation to attain influx of fluids. SUBSTANCE: device has wear- resistant cylindrical members with chamfered end. Members are located on common tie-rod. Head serves for connection of tie-rod with cable. Device has lower limiter. Heat is made in form of upper limiter. Each cylindrical member has axial channel exceeding the tie- rod diameter. Members are freely arranged on tie-rod and have bases forming angle with tie-rod. Angle differs from right angle and exceeding friction angle. Bases are not parallel to one another but are parallel to adjacent bases of adjacent cylindrical members and provide for possibility of radial displacement of cylindrical members relative to one another. EFFECT: higher quality of swabbing and long service life. 2 dwg