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- W2351194708 abstract "Several thick water bearing formations are overlying on the reservoirs of a gas filed with average depth of 3400m in Changqing oilfield. The general tendency of vertical corrosion distribution seen from quantitative data of corrosion rate is incremental from the top down. According to the standard of NACE RP0775-91, the corrosion rate is high and is some magnitude between moderate corrosion and severe corrosion. It is proposed that the compound corrosion inhibitor for completion fluid can be used to retard the corrosion of external water to casing. A few inhibitors were selected and their properties sucn as composition, compatibility, film forming ability and corrosion control were determined, and MIG was the optimum product. It can be seen from the laboratory electrochemical and HTHP tests that it had a corrosion control ratio of more than 86%, a stable compatibility with drilling fluid and a moderate cost. The in-situ application in two wells showed that MIG hardly had influence on the physical and chemical properties of the drilling and completion fluids, the quality of cementing and was preferable and qualified which indicated MIG had no effect on the qualities of first and second cementing interfaces and also the field operation is conven ient, simple and safe." @default.
- W2351194708 created "2016-06-24" @default.
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- W2351194708 date "2006-01-01" @default.
- W2351194708 modified "2023-09-25" @default.
- W2351194708 title "Study and application of the corrosion inhibitor for completion fluid in a gas field of Changqing oilfield." @default.
- W2351194708 hasPublicationYear "2006" @default.
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