Extended-life polymer gel plugs have met rigorous requirements as a sealant for restoring a barrier in the tubing annulus when tubing-annulus leakage has occurred. These requirements include urgency to restore annulus integrity, dynamic placement in unbalanced well conditions, and ease of removal without milling the tubing. Very attractive economic benefits have resulted.

Keywords:
procedure, drilling fluid formulation, methanol, upstream oil & gas, placement, production monitoring, casing and cementing, drilling fluid selection and formulation, extended-life polymer gel plug, plug
Subjects:
Drilling Fluids and Materials, Casing and Cementing, Hydraulic Fracturing, Well & Reservoir Surveillance and Monitoring, Reservoir Characterization, Improved and Enhanced Recovery, Formation Evaluation & Management, Drilling fluid selection and formulation (chemistry, properties), Cement formulation (chemistry, properties), Completion Installation and Operations
Copyright 1992, Society of Petroleum Engineers
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