Pressure-While-Drilling (PWD) Services

Downhole pressure measurements are provided by Sperry Drilling Services' PWD service, which consists of high-accuracy quartz pressure gauges measuring annular and bore pressure.

The PWD data have a number of valuable applications, including:

  • Accurate downhole measurement of equivalent circulating density (ECD)
  • Kick detection, including shallow water flows
  • Swab/surge pressure monitoring while tripping and reaming
  • Monitoring of hole cleaning
  • Accurate downhole measurement of hydrostatic pressure and effective mud weight
  • Accurate leak-off test (LOT) and formation integrity test (FIT) data without circulating to condition the mud

This sensor is available in SOLAR™, ExtremeHT-200™, and UltraHT-230™ for high temperature/high pressure environments.

Pressure-While-Drilling (PWD) Services

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