APS Technology announces the addition of new Azimuthal Gamma LWD

WALLINGFORD, Connecticut -- APS Technology, a provider of MWD/LWD, drilling optimization and vibration management products for the oil field, has announced the addition of its new SureLog-AZG azimuthal gamma ray LWD sensor sub.

APS has developed this sub to add to its Logging While Drilling (LWD) system, complementing its existing Wave Propagation Resistivity (WPR) LWD measurements tool.

APS's SureLog-AZG azimuthal gamma ray sensor enables accurate geosteering by adding imaging capabilities to existing APS Measurement-While-Drilling/Logging-While-Drilling (MWD/LWD) product line measurements. The sensor employs three ruggedized, shielded gamma ray detectors with photomultiplier tubes and a directional package that are mounted in a specially designed collar-based system.

This system provides protection against the high levels of shock and vibration experienced during drilling, while also providing maximum measurement sensitivity to the formation.

This new sensor is designed specifically for low power consumption. APS's azimuthal gamma ray sensor can be programmed to acquire gamma ray data in up to 24 azimuthally sectored bins around the borehole, as well as provide a total gamma ray measurement. Binned data and total gamma data are both recorded in memory and telemetered to the surface for real-time steering decisions. The azimuthal gamma sensor is also capable of providing a calibrated API-standard gamma ray response.

APS's advanced systems are powered by a turbine alternator in configurable combination with batteries to accommodate both LWD and Logging While Tripping (LWT). All LWD sensor subs can be used at typical flow rates (maximum 1,200 gpm or 76 l/sec) and to 347°F.