Reservoir Mapping While Drilling Technology - Geosteering | Schlumberger


Reservoir mapping-while-drilling service

Reservoir-scale mapping reveals enhanced view of reservoir properties

Using deep, directional electromagnetic measurements, the GeoSphere service reveals subsurface-bedding and fluid-contact details more than 150 ft [45.72 m] from the wellbore. This reservoir-scale view provides an unprecedented depth of investigation, enabling you to optimize landing, maximize reservoir exposure, and refine field development plans.

A seismic plot is overlaid with the much more accurate data from the GeoSphere service
Cutout image of the three major tool components of the GeoSphere service: a transmitter and two receivers
Available in three different sizes, the GeoSphere service comprises one transmitter and up to two receivers.

Maximize reservoir exposure with optimized landing

Using deep, directional electromagnetic measurements, the GeoSphere service precisely maps the reservoir top. With a clear, real-time view of the reservoir, operators can optimize landing and avoid losing lateral exposure or creating sumps. By exposing more of the lateral section to the reservoir, the GeoSphere service improves production potential and maintains wellbore integrity.

Enhance well landing operations and eliminate pilot holes

Pilot holes, which are often drilled to evaluate the formation before landing the horizontal, can cost tens of millions of dollars offshore. Even when drilled, pilot holes do not effectively mitigate risks in complex reservoirs where shallow or deep landings may occur. Resolving the reservoir and its boundaries, the GeoSphere service optimizes well landing—eliminating the drilling risks and costs associated with pilot holes.

Refine geological maps in real time for precise steering and enhanced modeling

The GeoSphere service helps refine geological reservoir models to provide a deeper understanding of subsurface boundaries and fluid contacts in complex environments. Data provided by the service is integrated with seismic data to help operational engineers analyze the reservoir, adjust well paths while drilling, and deliver smoother wellbores.

A 3D model of a well and reservoir using data from the GeoSphere service
Experts created a 3D reservoir model in the Petrel E&P software platform using the GeoSphere service's inversion results.
Reservoir mapping-while-drilling service
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