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Array Sonic perfectly centralized on Tool Taxi wheels in UAE

Tool Taxis perfectly centralize an Array Sonic toolstring in 8.5” wellbore

In a world first, an operator in the United Arab Emirates ran a Array Sonic centralized on Petromac Tool Taxis. This eliminated the drag inherent to traditional methods, resulting in excellent data quality.

Further to this, the Tool Taxis provide 2.4” of standoff (in 8.5” hole) on the sonde which perfectly centralizes the tool in the wellbore. Powered Calipers (which are placed at the extremity of the Array Sonic) and bowspring centralizers(which collapse under load) are not able to provide the same quality of centralization.

Further details of this technique can be found in SPE-192876-MS.

Fig.1. Centralizing Tool Taxis provide 2.4” of standoff, which keep the Array Sonic within .1” of the center of the wellbore in 8.5” hole.
Fig. 1Centralizing Tool Taxis provide 2.4” of standoff, which keep the Array Sonic within .1” of the center of the wellbore in 8.5” hole.
Fig.2. Array Sonic tool with high-drag traditional centralizing equipment (top) with low-drag Petromac equipment (bottom)
Fig. 2Array Sonic tool with high-drag traditional centralizing equipment (top) with low-drag Petromac equipment (bottom)
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