Imaging-while-drilling technology from Schlumberger

Schlumberger_MicroScopeSchlumberger had launched MicroScope 475, which is a high-resolution resistivity and imaging-while-drilling service at Geo 2012, Bahrain.

Provides key information

On a single collar, this logging-while-drilling service provides high-resolution laterolog resistivity and full borehole images in conductive mud environments. The technology provides key information for formation evaluation, well placement and fracture identification.

Essential measurements

The MicroScope tool acquires focused laterolog resistivity measurements and images at four different depths of investigation with azimuthal sensitivity. These measurements are essential for calculating reserve estimates, placing horizontal wells and optimising completion design.

"Optimal placement of the borehole in the reservoir, accurate evaluation of formation properties and identification of geological features that impact producibility are key elements of a successful well," said Andy Hendricks, president, Drilling & Measurements, Schlumberger.

Rigorously tested

MicroScope has been in development for four years during which it has being tested rigorously and deployed worldwide. The service addresses challenges in unconventional shale plays, carbonate and clastic reservoirs. The majority of the testing took place in the carbonate projects in the region.

Thin tight reservoirs

"The application of MicroScope in this challenging thin tight gas reservoir has helped us make accurate real-time decisions while drilling," said Peng Hai Run, chief geologist, PetroChina SWOGC.

"The success of this well has opened more opportunities to our company in developing the thin target reservoirs."

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