What Does Drill-In Fluid Mean?
Drill-in fluid is a type of drilling fluid designed especially for drilling through the reservoir section of a wellbore. It delivers all the properties of a drilling fluid, but does not damage the formation. Drill-in fluid is designed to protect the pay zone during wellbore construction, maximize the recovery of hydrocarbons and make cleaning easier. It also lowers the overall cost of completion of the wellbore and optimizes the rate of production.
Drill-in fluid is also known as drill-in mud.
