Application and operation of Balmoral Casing Guard
Balmoral Casing Guard is supplied as an easy-to-install kit for site application. It is routinely supplied as foam quadrants, typically 0.5–1.5m in length. These quarter cylinders are bonded to the outside diameter to create a continuous cylindrical section or, where a complete cylinder could later result in restricted fluid flow, in two or three sections around the casing outside diameter. The effective outside diameter of the installed BCG quadrants is restricted to minimise damage to the foam during casing deployment.
The complete BCG kit comprises the quadrant sections, adhesive system, powered adhesive dispensing equipment, banding and full HSE and installation documentation.
Once installed and the coated casing run, BCG has no detectable effect upon normal well operations and remains passive. When the design collapse conditions are reached, BCG responds immediately to provide the degree of APB mitigation specified by the engineering design team.
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