Slimhole measurements-while-drilling service
The DigiScope slimhole measurements-while-drilling (MWD) service transmits high-quality data to surface for real-time reservoir description and geosteering in land, extended-reach, and deepwater wells. This high-speed telemetry service powers the most extensive suite of LWD services and generates a strong signal in the deepest wells.
The DigiScope service's two-stage turbine, which introduces a second propeller, simultaneously powers multiple LWD tools uphole and downhole for a flexible BHA configuration. The DigiScope service transmits high-resolution reservoir characterization data at physical bit rates up to 36 bps for real-time geosteering and formation evaluation at high ROP. Using the Orion II data compression platform, the effective bit rate is increased to greater than 140 bps. The quality and strength of the service's signal combine to deliver high-quality data at faster rates.
The DigiScope service acquires wellbore surveys, azimuthal gamma ray, annular and internal pressure, and shock and vibration data while drilling. This service enables pumps-off pressure and equivalent static density data acquisition to reduce uncertainty in interpretation of leakoff tests and formation integrity tests.
The DigiScope slimhole measurement-while-drilling service transmits high-quality data to surface for real-time reservoir description and geosteering in land, extended reach and deepwater wells.
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The DigiScope service includes a high-density, slim alternator coupled with a two-stage turbine assembly to deliver power to a large suite of LWD tools placed above or below in the BHA. High-efficiency electronics enable the tool to make the most of the power generated by the turbine, at a large range of mud flow rates. In addition to its own power consumption, the DigiScope service turbine assembly provides up to 110 W uphole and 110 W downhole.
The modulator within the DigiScope service maintains high resolution in transmission by applying the smooth phase shift keying method, which minimizes ROP restrictions to enable delivery of twice as many data points at high ROP. Signal quality is maintained using an unparalleled range of transmission frequencies available at the higher bit rates.
