PROCESS OF SEALING OF OIL AND GAS WELLS

摘要

oil and gas production, sealing and insulation of wells. SUBSTANCE: outer surface of casing pipes is descaled prior to their assembly in strings. Shot blasting is employed for descaling. Then layer of stainless steel with thickness of 350-400 mcm and surface roughness of 60-160 mcm is deposited on pipes. Holes is drilled and casing strings are sunk in them. Cement mortar is used to insulate outer space. EFFECT: raised ecological control and service life of oil and has wells. 2 dwg