APS Technology Announces Wave Propagation Resistivity (WPR™) Tool

New Tool Enables Independent Service Companies to Add Propagation Resistivity LWD with Industry-standard Results

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Wallingford, CT and Houston, TX – September 22, 2008 – APS Technology, Inc., a leading provider of innovative technologies for drilling performance, today announced WPR: a compensated geometry, dual frequency (400 kHz & 2 MHz), dual spacing formation evaluation tool designed for logging-while-drilling (LWD) and measurements-after-drilling (MAD) services in all well types.

WPR operates in all mud types including oil-base and salt-saturated and provides real-time resistivity with flexible transmission formats. High-resolution data is stored in downhole memory which can be retrieved and processed during trips. Downhole storage in the WPR is 32 MB, with an additional 32 MB in the MWD tool. Memory fill-rate of downhole WPR + Gamma data is 8 MB or less in 120 hours, which can be downloaded in about 10 minutes during a trip.

Applications include geosteering, correlation, pore pressure trend analysis, casing point selection, wireline replacement, logging while tripping and logging with and without the flow switch enabled (for air and foam-drilled wells). Remote access capabilities include diagnostics, real-time and post-survey transfer of data via WITSML and remote geosteering. APS provides a complete set of software-enabled borehole corrections and applications with WPR, including geosteering and formation analysis.

WPR interfaces with APS's SureShot™ Directional plus Gamma (DG) MWD system, and uses industry-standard antenna spacings and dielectric corrections. The tool also offers industry-standard depths of investigation and vertical resolution. The complete SureShot plus WPR system operates to 175°C, and is powered by batteries or batteries plus turbine alternator. WPR is available in 3.5-in. (89 mm), 4.75-in. (121 mm), 6.75-in. (171 mm), and 8.0-in. (203 mm) nominal diameters.

Wave Propogation Resistivity Sub (WPR)

About APS Technology

APS Technology, Inc. specializes in the design, development and manufacture of electromechanical, instrumentation, and sensor designs for the oilfield and other harsh environments. APS has deep engineering expertise in oilfield drilling and sensor equipment, shock and vibration isolation designs, and stress analysis for static and rotating conditions. APS’s customers include all of the major integrated multinational oilfield service companies, independent directional drilling companies, MWD service companies and oilfield companies engaged in non-drilling related services. APS also provides engineering analysis, product development services, and proprietary products to customers worldwide.

For more information please contact:
John Hickey
MWD Product Line Manager
APS Technology, Inc.
7 Laser Lane Wallingford, CT 06492
Tel: 860.613.4450 ext. 108
E-mail: jhickey{at}aps-tech.com

Related Links: WPR Tool, SureShot MWD System, Turbine Alternator

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