• Conductor pipes are relatively short string of large diameter pipes set into the ground to provide the initial stable structural foundation for a borehole or oil well.
• Conductor pipe may or may not be cemented.
• Conductor pipes are used for keeping the top of the hole open and provide a means of returning the drilling fluid from the wellbore to the surface drilling fluid system until the first casing string is set in the well.
• Conductor pipes are usually set with special pile-driving or spudder rigs, though the drilling rig is sometimes used to save time and money.
• Conductor pipes are also referred to as a drive pipe because it is often driven into the ground with a pile driver.