| 摘要 |
FIELD: oil and gas production industry. SUBSTANCE: method can be used in process of isolation and restoring operations at overhaul repair of wells. High ecological reliability and efficiency especially in conditions of aggressive media, isolation of gas-oil-water seepage in annular space, as well as reduced time and facilities needed for performing isolating operations can be achieved as follows. According to geophysical investigations in well, interval is separated with deposition of high-plastic rock mass. Section of casing string is perforated within separated interval. Annual space is filled with isolating material at side of rock mass. Used as isolating material in this case is actual high-plastic rock material. EFFECT: high efficiency. 1 cl, 1 dwg |
