Debris management is a major concern for producers.rnWellbore debris is responsible for many of the problems andrnmuch of the extra cost associated with extreme water depthsrnand highly deviated holes. This paper discusses proceduresrnand tool systems developed to optimize the efficiencies andrneconomics of debris removal. Issues pertinent to deepwaterrnwellbore cleaning will be discussed, along with the problemsrnassociated with removal of debris caused by perforating,rnmilling, etc. The authors will outline techniques for removal ofrnthis debris and discuss a tool system that is a workablernsolution for these problems.rnThis paper will focus on the use of a Vectored AnnulusrnCleaning System to remove debris from areas of the wellborernthat have normally proven very difficult. The system has beenrnshown to be effective in removing debris from problem areasrnsuch as above liner tops or where casing size changes, areasrnwith a loss of annular velocity, and in wells with little to norncirculation. Case histories from the Gulf of Mexico and thernNorth Sea will demonstrate how this technology has reducedrnproblems of debris removal while saving rig time byrneliminating trips.
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