High Performance equipment results in ultra-low drag in Angola

Petromac’s B-Type Tool Taxi, engineered and manufactured in New Zealand, is proven best-in-class. The design incorporates bespoke double row, angular contact ball-bearings rated to withstand the harsh downhole conditions. The wheel bearing system is completely sealed from wellbore mud. The ball bearings run in a pressure compensated grease bath which is fed from the integral lubricator. In addition to reducing drag and eliminating differential sticking, the Taxis orient the toolstring. This unique feature allows the Probe to sample from the undamaged, high side of the wellbore. In addition, the upturned nose of the holefinder enables the toolstring to simply “ski” over ledges without slowing down. Petromac’s unique Tool Taxi enables a 2000lbs MDT toolstring to freely descend in extreme angle wellbores (80°+ deviation) without sticking Fig.2. Average tool drag coefficient from the job – Possible to descend to 80 deg on gravity Fig.1. Formation testing tool oriented to the highside when running on tool taxis. Average Drag Coefficient of 0.05 Normal Drag Coefficient without Taxis is 0.4