DEVICE FOR ANTICORROSIVE PROTECTION OF WELL-HEAD ROD OF DEEP-WELL SUCKER-ROD PUMPING UNIT

摘要

FIELD: mining industry. SUBSTANCE: this relates to well-head equipment for producing oil and gas and can be used in operation of deep-well pumping units. Device has sealing gland in its body and is additionally provided with protective cylinder filled with corrosion inhibitor with sealing gland to prevent leaking of inhibitor and uniform lubrication of rod. Also provided is removable cover to permit replacement of sealing gland and adding of corrosion inhibitor. Cover is connected with protective cylinder by means of rings and fastening bolts. EFFECT: high efficiency. 1 dwg