Drilling a very deep hole is a very costly business. The hole size is kept very small as the drilled depth increases because it is to cased and cemented after wards. The larger hole will require huge amount of steel casing, and other problems like caving and collapsing of the hole during the drilling. It is not possible to bring out the cuttings generated by drill bit manually from such depth as can be done while digging a well. To bring out the cutting from such depths, drilling fluid is used. Drilling fluid is generally a viscous, heavy fluid designed to perform a variety of functions. It is like the lifeline of a well.
Salient functions of Drilling Fluids a drilling fluid are given below:
Drilling fluid also functions to minimize reservoir damage and limit corrosion.
Researchers Submit Patent Application, "Methods and Apparatus to Determine Slowness of Drilling Fluid in an Annulus", for Approval
Apr 18, 2013; By a News Reporter-Staff News Editor at Politics & Government Week -- From Washington, D.C., VerticalNews journalists report that...
Agency Reviews Patent Application Approval Request for "Online Measuring Assembly of the Rheological Properties of a Drilling Fluid and Associated Measuring Method"
Jan 31, 2013; By a News Reporter-Staff News Editor at Politics & Government Week -- A patent application by the inventors Villard, Eric...