User talk:72.244.219.46/TriCenter Reamer

The TriCenter Reamer (TCR) is a new and unique tool used in extended reach drilling to reduce the tortuosity of the directional hole that is drilled with a down hole motor assembly. The TCR is composed of two eccentric Bicenter Sub (BCS) blade sections that are oriented 180 degrees apart so that they will drift through a smaller hole sliding than they drill while rotating. Unlike concentric reamers and Reaming While Drilling (RWD) tools, the TCR does not follow the existing well path and just enlarge it. The TCR will side ream the near center of the bore hole (sometimes called the inside of the dogleg). The first BCS reamers were designed and manufactured by Short Bit & Tool Co (Garland, Texas) in the summer of 2007. The first TCR was made by orienting two BCS reamers so that the eccentrics were 180 degrees apart in November, 2010. This was run successfully by QEP Resources in North Dakota in January, 2011. The one piece TCR tools as of July, 2011 have been run on more than a dozen wells with 100% success. US Patent Pending 61/473,587.