GeoXplorer Imaging Service
Enhanced resistivity imaging in nonconductive muds
The GeoXplorer™ service provides high-resolution formation resistivity imaging in low-resistivity formations drilled with nonconductive mud systems. The high-resolution images allow for near-wellbore geological and petrophysical reservoir evaluation.
High-resolution pads with 10 sensors mounted on six articulated arms to provide 60 micro-resistivity measurements, with a vertical resolution of 0.8 in. (20 mm) and 79% borehole coverage in an 8.0-in. (20.3-cm) borehole. The six independently articulated arms and powered stand-off ensures optimal sensor-to-formation contact even in highly deviated boreholes.
The resulting high-resolution borehole images are useful for identifying bedding, fractures, faults, stratigraphic features, and borehole wall features, such as breakout and drilling-induced fractures.
High-resolution net-sand analysis from the GeoXplorer service—in conjunction with results from a multicomponent induction tool, such as the BHGE 3DeX™ service—helps to determine an accurate net-pay even in thinly bedded intervals. In addition, the images allow accurate positioning of fluid sampling or sidewall coring tools, such as the RCX™ (Reservoir Characterization eXplorer™), PowerCOR™, and MaxCOR™ services.
The GeoXplorer service—whether deployed alone or in combination with the UltrasonicXplorer™ service—can help in the analysis of structural dip, fracture systems, depositional environments, borehole stability, and net-pay identification in thinly bedded sequences. The simultaneous acquisition of both image datasets provides a more complete picture for accurate fracture evaluation. This is particularly important in shale gas or fractured basement evaluation.