Method and System For Minimizing Circulating Fluid Loss During Drilling Of A Well Bore By Using a Heated Circulating Fluid
Publication Date: 2002-May-17
The IP.com Prior Art Database
A method and system for minimizing circulating fluid loss during drilling of a well bore and other well service operations is disclosed. A circulating fluid, ie. mud, is heated prior to being used to flush cuttings from a well bore which is being drilled into a subterranean formation. Consequently, the region of the formation in contact with heated circulating fluid is maintained at a relatively higher temperature than if a non-heated circulating fluid were used. This region is constrained or bound by the surrounding formation such that region is maintained in a relatively greater state of compressive stress than it would be at a lower temperature. The enhanced compressive state of this region of the formation inhibits the growth and/or opening of fractures. Consequently, loss of circulating fluid through these fractures during drilling is limited as compared to what losses would be using a lower temperature circulating fluid.