Cement design, evaluation method improves well safety and economics

08/05/2002
Natural gas may be one of the cleaner sources of energy, but the petroleum industry's challenge in the well-construction process is to drill and complete wells to produce it safely and economically. Click here to enlarge imageThe extreme operating conditions that occur in wells drilled for gas-storage, high-pressure and high-temperature (HPHT) environments, and deepwater could cause damage to the cement sheath and lead to fluid flow into the annulus, which could render the well uneconomical and unsafe to operate.Researchers have developed a design procedure to estimate the risk of cement sheath damage as a function not only of the cement sheath properties, but also of those of the fo...
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