Remediation of heavy organic deposits of asphaltene in the course of oil production has been a costly process and it has hampered the production activities. Well 1 was initially put in production on December 14, 2005, but it failed to flow against the flow line pressure of 260 psig and later against a reduced HPTT pressure of 50 psig. Heavy asphaltene emulsion solids were found to be completely obstructing the tubing, which could not be subsequently displaced or cleaned out by bullheading either water or Xylene.

To break up the asphaltene and restore the productivity of Well 1, the following options were considered: bullheading water, xylene wash, rotating nozzle CT, workover and using the VibraBlaster™ tool. In January 2006, water bullheading was first attempted with no success. In March 2006, xylene wash was attempted, again with no success. In August 2006, the VibraBlaster™ tool was deployed with coil tubing and attempted to remove the emulsions using the tool's vibration and reciprocation, combined with its high velocity jetting. The VibraBlaster™ tool succeeded in breaking up the solid asphaltene accumulations on the Christmas tree and the first 1900‘ of tubing, restoring the well's production with a current oil rate of 10.7 MBOD and 0% water cut at 26/64" choke setting. Close subsequent observation of the well confirms that it is behaving like a normal GOR well, while crude samples also indicated normal levels of asphaltene (2–3%).

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