... directions with the reduced prototype model submerged in water and supported by springs. The acceleration data collected during the oscillations demonstrated that the equation of damped natural frequency gave a better approximation of added mass because of the fluid damping. The drag parameters...

... sensors. The technology is fully compatible with preservation by flushing and allows pigging in the event of deposits. The paper will also present the qualification work performed by Saipem to date including heating performance tests performed mid-2018 on a small-scale submerged prototype operated under...

..., an initial prototype is developed using a Roomba robot with several onboard sensors and preliminary tests have been performed in a real environment similar to an offshore platform. The tests show that the robot is capable of indicating the presence or absence of objects in a video stream and mapping...

... diameter verification wellbore measurement drillstring design smart calliper otc 24334 drilling test real time system smart reamer calliper wellbore diameter vibration petrobras upstream oil & gas bha block position cutter block position calliper prototype drilling...

... in this paper was developed and tested by technological cooperation between the Petrobras Research Center (CENPES) and laboratories at PUC-Rio. In this article, the results of laboratory tests carried out with full-scale prototypes of these systems are described in good details. armor laboratory test...