Scientific Drilling’s Gyro Measurement While Drilling (gyroMWD) systems are built upon decades of experience and offer complete peace of mind in an accurate and dependable survey program, from a partner you can trust. Whether navigating offset wellbores in a congested field, orientating a whipstock for kick-off, or using multiple MWD data sets for survey validation – Scientific Drilling’s gyroMWD systems hold the solution.

SDI’s gyroMWD technologies eliminate hazards & personnel from the rig and provide significant time savings. Therefore, it enables high-accuracy drilling in magnetic interference and offers survey redundancy in non-interference zones. As a result, gyroMWD allows for an optimized drilling program.


Our gyroMWD technologies are designed to define SDI as the ultimate partner in wellbore positioning. Thus, meeting industry demand and exceeding expectations. Recent projects have involved:

/ Batch set top hole drilling with ZeroPOB in a remote region.

/ Deepsea whipstock orientations and casing exits.

/ High inclination / high latitude operations on offshore platforms.

/ Complex collision avoidance in high-angle trajectories.

/ Advanced wellbore surveying in a relief well intercept.


Our gyroMWD tools can be connected to the leading directional providers’ MWD/LWD and RSS systems or run within Scientific Drilling’s  Falcon MP and Falcon EM systems.



URSA is Scientific Drilling’s state-of-the-art high-angle solid-state gyroMWD sensor. For instance, it is built using SDI’s exclusive solid-state gyro sensors. URSA gyroMWD redefines survey accuracy with an optimized system built on experience. However, a rough system is named for involvement with one of humanity’s most historic directional services. URSA represents strength and resilience.

Available in various formations as a combined module within our directional partner’s MWD systems or utilizing SDI telemetry. The service packages range from complete to ZeroPOB. URSA gyroMWD enables the ultimate flexibility in precision wellbore placement while delivering industry-leading angle capability.


Keeper gyroMWD

Powered by Scientific Drilling’s proven north-seeking spinning mass Keeper Gyro. The Keeper gyroMWD system delivers drilling confidence by enabling precision surveying even in magnetic interference, providing preventative measures for collision avoidance, and allowing peace of mind in an advanced survey system. For instance, the Keeper gyroMWD is available as an integrated module within our directional partner’s MWD systems or utilizing SDI’s proven telemetry.

SDI’s Keeper gyroMWD systems provide a robust and dependable while-drilling solution. For example, adaptable to many drilling environments and is backed by over twenty years of industry use and acceptance.


Scientific Drilling’s gyroMWD module systems incorporate our industry-leading north-seeking rate gyro technologies. For instance, leading MWD suppliers’ equipment saves significant rig time and provides a safer working environment in an improved package.

Scientific Drilling’s gyroMWD Module was designed to provide seamless compatibility with existing MWD and rotary steerable systems. Above all, compatible with both our Keeper and URSA technology. Moreover, our gyroMWD modules offer reliable measurements and are backed by our robust quality system, which extends from our manufacturing and calibration centers to our global operations network.


The gyroMWD Module delivers the precision, productivity, and peace of mind that the industry demands, as it:

/ Ensures precision downhole surveying in areas with heavy magnetic interference

/ Provides precise, dependable, and repeatable measurements using a stabilized sensor platform, high-accuracy survey inclination and azimuth, real-time steering true gyro tool face and high-side tool face, temperature, Earth Rate Horizontal, and advanced QA Parameters measurements

/ Allows precision continuous gyro tool face for complex steering

/ Reduces cost through rig time savings and drilling optimization

/ Enables operational efficiency through flexible BHA configurations



As a modular add-on to industry-leading MWD/LWD and RSS systems, Scientific Drilling’s URSA gyroMWD Module combines state-of-the-art high-accuracy solid-state gyro surveys with the dependable quality assurance you can trust. Designed with current and future industry needs at the forefront, SDI’s URSA solid-state technology provides a flexible package with the most accurate gyroMWD system.

Delivering world-class accuracy even in the presence of magnetic interference and offering peace of mind preventative measures for collision avoidance, URSA gyroMWD Modules are adaptable to suit global requirements. Offering a reduced footprint combined with significant rig time savings and an ever-expanding feature set, SDI’s URSA gyroMWD represents the ultimate solution in wellbore placement.


Keeper gyroMWD

As a modular add-on to industry-leading MWD/LWD and RSS systems, SDI’s Keeper gyroMWD Module delivers accuracy in magnetic interference, providing preventative measures for collision avoidance and allowing drilling operations to remain on time and target.