StethoScope FPWD

Formation Pressure While Drilling Measurements

StethoScope formation pressure-while-drilling (FPWD) service minimizes risk and reduces cost with real-time calibration points for pore pressure models. This service enables mud-weight optimization so that drilling can continue confidently at ideal penetration rates.

FPWD measurements also improve casing point selection by offering a better understanding of the formation pressure around the planned casing point, reducing risk.

StethoScope HT services have a proven track record for high-temperature operations around the world. Our suite of best-in-class HT technology and high-temperature-certified engineers includes products and services for directional drilling, MWD, and LWD. See the HT suite

Real-time measurements for geosteering & geostopping

Real-time formation pressure measurements (delivered to surface by On-Demand Frame technology) eliminate time wasted drilling pressure-depleted formations and preserve virgin pressure zones scheduled for sidetrack development or completion. Pressure and mobility data help in targeting the most productive zones and determining the optimal drain length for horizontal wells. In faulted formations, rapid pressure analysis enhances effective geosteering between compartments.

Accurate data for improved formation evaluation

In developed reservoirs, pressure profiles help to understand fluid movement. In virgin reservoirs, pressure profiles can be combined with other LWD logs to develop a static reservoir model. For pretests, TOP time-optimized technology supplies reliable data.

Using these pressure profiles to model the dynamic reservoir pressure optimizes recovery. The model enables an increased understanding of a field's production systems, leading to better completions.

Versatility for holes and settings

StethoScope FPWD service is performed using a variety of tool sizes:

• StethoScope 475 for holes with maximum OD of 5 3/4 in
• StethoScope 675 for 8 1/4-in and 9 7/8-in holes
• StethoScope 825 for 10 5/8-in and 12 1/4-in holes

The StethoScope 675 and StethoScope 825 FPWD services draw from the knowledge gained from leadership in the LWD industry, as well as with wireline MDT modular formation dynamics tester. Using an ACQG advanced crystal quartz and a strain gauge for valid data, the service is ruggedized to withstand the drilling environment. The information obtained works to optimize fluid typing, reservoir pressure, and mud weight.

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