METHOD FOR DESTRUCTION OF HYDRATE-ICE, ASPHALTENE-RESIN AND PARAFFIN DEPOSITIONS IN WELL PROVIDED WITH SUCKER ROD PUMP Russian patent published in 1999 - IPC

FIELD: oil and gas production industry. SUBSTANCE: according to method, string of pump rods is subjected to vibration and acoustic oscillations. For this purpose, vibration-acoustic emitter is secured on end or on side surface of well head rod above well head. Rope suspension system is relieved prior to that. This position of rope suspension is kept unchanged during entire period of treatment. Microclearances are created in intercrystal bonds of depositions and in surfaces of contact of pump rods and pipe strings with depositions along their entire length. Process of destructing depositions is monitored at well head according to change of pressure in annular space and/or in casing clearance. Application of aforesaid method allows for destruction of depositions in the form of blind plugs with subsequent restarting of well provided with sucker rod pump and which was stopped because of depositions. EFFECT: higher efficiency. 8 cl, 2 dwg