OGJ FOCUS: Study reviews Iran, world well cementing practices

A study compared the cement casing standards of intermediate and production casing strings with analogous cement casing operations in Iran.Well integrity testing is vital in well design, construction, operation, maintenance, and abandonment. Operators should design, construct, operate maintain, and abandoned wells in a manner that safeguards well integrity; minimizes health, safety, and environmental risks; and ensures a well's planned availability throughout its life-cycle.Cementing is not the only factor that protects casing. Other ways for protecting the casing include placing completion fluids around casing that has not been cemented (these fluids should be oxygen-free, high-pH, and t...

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