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Schlumberger launches new gyro-surveying tool for E&P operators

Technology

Houston-based energy services giant Schlumberger has introduced the GyroSphere MEMS gyro-while-drilling service at Offshore Northern Seas (ONS), which aims to increase drilling efficiency and reliability while reducing drilling risks for the global E&P operators

As the first application of microelectromechanical system (MEMS) technology for gyro surveying while drilling in the oilfield, the GyroSphere sensor performs gyro surveys faster than conventional systems and avoids the need for recalibration between runs, said Schlumberger.

The solid-state technology aims to enable the GyroSphere sensor to withstand the downhole shock and vibration that occur during drilling beyond the limits of current gyro technologies. Additionally, the GyroSphere service focuses on reducing gyro survey uncertainty by up to 45 per cent, providing more accurate access to smaller reservoir targets.

“The GyroSphere service substantially improves operational efficiency by enabling gyro surveying without taking any additional rig time,” said Tarek Rizk, president for drilling and measurements at Schlumberger. “Two surveys can be completed using the GyroSphere service in the same amount of time conventional gyros take to start just one,” Rizk added.

The GyroSphere service has been proven through extensive testing and field trials in the North Sea, Ecuador, Africa and Russia. In Russia, the GyroSphere service enabled a customer to avoid wellbore collisions while accessing reservoirs from existing structures, eliminating drilling risks associated with deploying conventional gyro surveys.

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