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Gasified liquids, which are used for underbalanced drilling applications, generally do not contain surfactants. Bottomhole pressures are ...

Stiff Foam Drilling Overview Stiff foam is a more viscous and stable form of foam that can be generated using surfactants alone. The reduction in horsepower requirements and low water consumption make the stiff foam a more economical option compared to other drilling fluids. In general, stiff foam drilling involves …

Foam drilling is a drilling technique that involves the use of a polymer foaming agent, water, and compressed air. In certain areas, it’s more effective than mud drilling, and it generally results in more efficient spoil disposal. Trenchless operators have access to a variety of drilling techniques. Foam Drilling Overview …