Patent ID: 7028769

Claim:
A wellbore cleaning apparatus, comprising: a mandrel having a lower end extending beyond at least one lowermost fluid barrier, said lowermost fluid barrier extending toward the wellbore wall; at least one first lateral opening through said mandrel, located between said lower end of said mandrel and said lowermost fluid barrier and substantially closer to said lowermost fluid barrier than to said lower end, said first lateral opening in fluid communication with an inner passage through said mandrel to accept fluid and debris as said mandrel is advanced downhole; said inner passage extends through to said downhole end of said mandrel and is selectively closed; said inner passage is selectively closed by a removable plug located between said lower end of said mandrel and first lateral opening; said mandrel comprising a second passage extending from above to below said fluid barrier and selectively closed when said mandrel is advanced into the wellbore.