Satyam Oilfield Equipments And Services

A 20" casing pipe in the oil and gas industry is primarily used as "conductor casing" at the very beginning of a wellbore, providing structural support and protection to the near-surface formations while drilling operations commence, especially in areas with unstable soil conditions or shallow gas zones; essentially acting as a large diameter pipe to guide the drilling mud and prevent surface contamination.

In the oil and gas industry, a casing pipe is primarily used to line the wellbore during drilling, providing structural stability to prevent the borehole from collapsing, isolating different geological formations to control fluid flow, and protecting groundwater by preventing contamination from drilling mud and other fluids; essentially acting as a protective barrier throughout the well's depth while drilling and production phases.