The GeoXplorer™ imaging service, from Baker Hughes, a GE company (BHGE), 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.

Applications

• Determining dip and strike• Structural mapping and cross-section

generation, including up-scaling to seismic and verifying a seismically derived structural model

• Obtaining well-to-well correlations and geological modeling

• Delineating other geological structures• Determining net sand in thinly bedded,

sand-shale sequences • Accurate positioning of fluid sampling

and sidewall coring tools

Benefits

• Allows high-quality images to be acquired in a single pass, thus reducing rig time

• Provides accurate imaging of high relative dip features such as natural and drilling-induced fractures

• Acquires high-resolution resistivity images simultaneously with ultrasonic acoustic images and 3DeX multicomponent induction data, providing powerful complementary information

• Ideal for low-contrast/low-resistivity formations from less than 1 ohm to 250 ohm

GeoXplorer imaging serviceEnhanced resistivity imaging in nonconductive muds

Pictured are high-resolution resistivity images illustrating both laminated and disturbed bedding

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High-resolution pads with 10 sensors are 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-in. (20.3-cm) borehole. The six independently articulated arms and powered stand-off ensure optimal sensor-to-formation contact, even in highly deviated boreholes.

The resulting high-resolution borehole images can be used to identify bedding, fractures, faults, and stratigraphic features, as well as 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 BHGE Reservoir Characterization

eXplorer™ (RCX™), PowerCOR™, and MaxCOR™ services.

The GeoXplorer service—whether deployed alone or in combination with the BHGE 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 evaluations.

For more information on how the GeoXplorer service provides high-resolution formation resistivity imaging in low-resistivity formations drilled with nonconductive mud systems, contact your BHGE representative today or visit bhge.com/GeoXplorer.

Properties/specifications

Instrument diameter 6.07 in. (155 mm) with wear rings

Length 22 ft (6.70 m)

Weight 575 lb (261 kg)

Minimum borehole size 7 in. (178 mm)

Maximum borehole size 16 in.

Maximum temperature 325°F (163°C)*

Maximum pressure 25,000 psi (172 Mpa)

Number of pads/sensors 6 pads/10 sensors per pad

Borehole coverage 79% in an 8-in. (203-mm) borehole

Image resolution 0.8-in. (20-mm) vertical; 0.3-in. (8-mm) azimuthal

Mud type Nonconductive mud systems

Tool compressive strength 36,000 lb (16,330 kg)

Tool tensile strength 56,000 lb (25,401 kg)

Conveyance method Wireline or pipe conveyed (PCL)

*350°F (177°C) available in certain areas, contact your local BHGE representative.

Copyright 2018 Baker Hughes, a GE company, LLC (“BHGE”). All rights reserved. The information contained in this document is company confidential and proprietary property of BHGE and its affiliates. It is to be used only for the benefit of BHGE and may not be distributed, transmitted, reproduced, altered, or used for any purpose without the express written consent of BHGE.

Baker Hughes reserves the right to make changes in specifications and features shown herein, or discontinue the product described at any time without notice or obligation. Contact your BHGE representative for the most current information. The Baker Hughes logo, GeoXplorer, 3DeX, Reservoir Characterization eXplorer, RCX, PowerCOR, MaxCOR, and UltrasonicXplorer are trademarks of Baker Hughes, a GE company, LLC. GE and the GE Monogram are trademarks of the General Electric Company.

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