At-bit collar-based tool and standard probe-based sensors which are API calibrated and provide radial gamma ray and precision inclination.
Scientific Drilling’s portfolio of API calibrated gamma ray sensors provides natural gamma ray measurements close to or at the bit.Real-time gamma ray data ranges from Total GR through to full 8 sector azimuthal images, that meet the client needs.

 

BITSUB – AT-BIT RADIAL GAMMA RAY AND INCLINATION

Scientific Drilling’s BitSub is a short-integrated sensor package which provides at-bit real-time continuous inclination, azimuthal gamma ray, and drilling dynamics measurements. The collar-based design provides high precision azimuthal gamma ray less than 2 feet from the bit, enabling proactive geosteering decisions.
The at-bit continuous inclination gives immediate feedback on wellbore directional trends and motor output, allowing for closer proximity to well plan trajectory.

Utilizing the Wi-Sci™ EM Short Hop for real-time data transmission, a wide selection of mud motor power sections can be utilized.  This EM short hop technology works in both water and oil-based mud systems, and is compatible with Scientific Drilling’s MP-MWD, EM-MWD, and LWD systems.

DELIVERING THE ULTIMATE VALUE

/ Azimuthal Gamma Ray and Inclination measurements 16” above the bit
/ “Wi-Sci” short hop communication for real-time data in OBM and WBM applications
/ Compatible with SDI mud-pulse and electromagnetic MWD systems
/ Measures and alerts for shocks, vibrations, and stick-slip occurring at the bit


TARGET APPLICATION

/ Instantaneous Monitoring of Mud Motor Output
/ Geosteering
/ Lithology Identification/ Correlation
/ Casing and Coring Point Selection
/ Shale Volume Estimation

 

HAG – HALO AZIMUTHAL GAMMA RAY

Scientific Drilling’s newest azimuthal gamma ray tool employs an improved design for higher quality gamma ray imaging applications.  This probe-based sensor is integrated with the HALO RSS or can placed just above the mud motor in a conventional assembly.

As geosteering target windows thin, the gamma ray variability can also decrease which may lead to uncertainty of whether the wellbore is cutting up or down stratigraphically.  Employing a larger scintillation crystal and improved azimuthal shielding, the HAG sensor provides better resolution imaging measurements to aid with critical real-time well placement decisions.

 

DELIVERING THE ULTIMATE VALUE

/ Quadrant real-time Gamma Ray imaging for accurate geologic structural interpretations
/ Decreased bit-to-sensor distances with the HALO RSS
/ Compatible with mud-pulse telemetry and electromagnetic MWD systems w/ conventional mud motor BHA

 

AZIMUTHAL GAMMA RAY AND INCLINATION (SCI-GUIDE™)

The azimuthal gamma ray solution provides measurements 20-25 ft (6-8m) closer to the bit than the MWD. It is an excellent tool for Geosteering – helping to keep the bit within the “sweet spot” of the reservoir.

On the Bottom Hole Assembly (BHA), the Azimuthal Gamma Ray solution is extended and placed just above the motor giving the client enough time to quickly react to formation changes. This technology can be run with any of Scientific Drilling’s MWD and LWD systems in all configurations.

 

DELIVERING THE ULTIMATE VALUE

/ Provides Up/Down gamma ray and inclination measurements closer than standard MWD
/ Supports all BHA sizes
/ Works seamlessly real-time with both MP and EM MWD