Patent ID: 8973662
Filing Date: 2015-03-10
Classification: E21B

Abstract:
1. A downhole tool for capturing debris within an annular space, defined between an outermost surface of the tool and a wall defining the surrounding wellbore, the downhole tool comprising: a mandrel having an upper end, a lower end, a mandrel bore defined by a mandrel inner wall surface and at least one port extending from said bore on said inner wall surface to an outermost wall surface of the tool such that flow through said port creates a hydraulic barrier in the annular space; and a collection member disposed along said outermost wall surface of the tool, the collection member comprising an opening in said annular space and a cavity in fluid communication with the opening, wherein said hydraulic barrier is disposed above the opening of the collection member to redirect debris in flow, which has passed from said upper end without debris, through said mandrel bore and into the annular space while picking up debris in the annular space, into said opening of said collection member.