The APS MWD system uses either battery pack(s) housed in APS battery module(s) or a turbine alternator, which can be run alone or in combination with battery module(s).
The APS Turbine Alternator† is a high-temperature, axial flow design for use in measurement-while-drilling (MWD) and logging-while-drilling (LWD) systems. This device provides reliable, ongoing power at temperatures of up to 175°C, taking the place of expensive, short-lived disposable batteries. The turbine is configurable to match the required flow rates for typical BHA/hole size combinations.
† U.S. Patent #7,201,239
SureShot Power Options Technical Data Sheet
|Operating Temperature||347˚F (175˚C)|
|Pressure||20,000 psi (138 MPa)|
|Output Power||150 W|
|Voltage, Regulated (Configurable)||28 - 60 VDC|
|Flow Rate||3.125 in. (79 mm) – 150 to 270 gpm (6.5 to 17 L/sec)|
3.75 in. (95 mm) – 250 to 775 gpm (15.8 to 48.8 L/sec)
4.82 in. (122 mm) – 400 to 1300 gpm (25.2 to 82 L/sec)
|Housing Diameter||1.875 in. (48 mm) / 2.06 in. (52 mm) / 1.875 in. (48 mm)|
|Overall Length||60 in. (1,524 mm)|
|Weight||Approx. 45 lbs. (20.4 kg)|
|Turbine Housing Diameter||3.125 in. (79 mm) for 4.75 in. (121 mm) drill collar|
3.75 in. (95 mm) for 6.5 in. (165 mm) & 6.75 in. (171 mm) drill collar
4.82 in. (122 mm) for 8 in. (203 mm) & larger drill collar
|Connections||The uphole and downhole connections use the robust APS 1.625-10 Stub Acme shouldered connections. Male threads are copper plated for galling resistance. Other connections or crossovers can be supplied for different architectures.|
|Connectors & Feed-Through Conductors||Deutsch 22 conductor connectors with 4 x 26 AWG unshielded and 5 x 32 AWG coaxial shielded feed-through conductors, plus 2 power and 2 ground lines and a frequency line.|
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