The interior of the well tool and method for the reduction of debris in a perforation formed in a bore of the well and method for reducing debris contained in the interior of a drilling carried out in a fUro well

摘要

"The tool of the interior of the pit and method for reduction of debris in a perforation formed in a bore of the well and method for reducing debris contained in the interior of a drilling carried out in aThe hole of the well. " This is a method and apparatus for reducing debris in a well bore drilling carried out in a hole and that extends from the shaft to the inside of an underground formation.A housing is positioned in the bore of the shaft, and an arm is extended from the same.One or more devices blocking debris are capable of positioning in the interior of the drilling by use of the arm.The device blocking debris is adapted to prevent debris from the fluid flow inside the housing for training through the perforation, thereby enabling to reduce the contamination.In the fluid of the formation. The debris blocking device may consist of a filter capable of positioning in the interior of a drill drilling, or activated to dislodge debris.