The Keeper gyro survey system provides enhanced flexibility for a wide range of survey applications with just a single sensor. It features high-speed options, close interval surveying in casing, drill pipe, and tubing in real-time and memory modes.

Keeper Wireline Gyro

The Keeper wireline gyro is recognized as a benchmark navigation technology and remains the most versatile high-accuracy gyro in the industry. Its unique sensor platform allows for continuous, high-speed gyro surveys in all casing, tubing, and drill pipe sizes.

With its robust and innovative fluid filled design, real-time steering operations are now possible where a typical MWD would not normally survive due to excessive temperature or vibrations.

All Attitude Drop Keeper Gyro (AdK)

The Keeper ADK is a smart drop tool for all-attitude operations including high-angle and horizontal pump-down applications. The ADK drop gyro system bridges the technology gap between a conventional drop system and the definitive wireline multi-mode Keeper, allowing surveys to be collected while tripping out of the hole, increasing operational efficiency. This system also features a high-speed mode, which eliminates the stationary time needed at each survey, delivering significant time and cost savings.

Sightline Keeper Gyro

Modern north-seeking gyro technology requires absolute stillness during the in-hole survey initialization and gyro compass. This can be very difficult to achieve on floating platforms and during near-seabed operations. SDI provides two unique solutions to address this challenge: The Sightline Keeper and the Locking Arm.

Memory Keeper Gyro

The Memory Keeper is an extension of the Keeper gyro surveying system. It utilizes a long life lithium battery, allowing the well to be surveyed completely in memory and then calculated once the tool is back on surface. This tool is the optimal choice for operations in locations where access to wireline is either difficult, or cost prohibitive. In addition, coupling with an optional CCL/Gamma sensor allows full depth correlation.


Combining the Keeper Wireline Gyro with select 3rd party production logging tools allows Scientific Drilling International to collect a gyro survey while cutting expensive rig time nearly in half compared to running each service individually. Paired with Cement Bond log tools on contractor heptacable, the OnePass runs in real-time, allowing continuous feedback on tool performance. Utilizing contractor electrical interconnects and pressure housings ensures seamless integration for flawless service delivery.