Casing
Large-diameter, thick-walled steel pipe lowered into an open borehole and cemented in place to isolate formation fluids (such as fresh water), prevent borehole collapse, and withstand forces such as collapse, burst, and tensile failure.
Large-diameter, thick-walled steel pipe lowered into an open borehole and cemented in place to isolate formation fluids (such as fresh water), prevent borehole collapse, and withstand forces such as collapse, burst, and tensile failure.