The Baker Hughes, a GE company (BHGE), UltrasonicXplorer™ imaging service provides high-resolution borehole acoustic images in difficult wellbore conditions, including oil-based muds and large boreholes. These images provide valuable insight for making drilling, completion, and production decisions at the wellsite.

Using a rotating acoustic transducer operating in the pulse-echo mode, the UltrasonicXplorer service attains full 360° image coverage. The transducer scans the entire circumference of the borehole wall, providing sharp images and boundary delineation.

The instrument operates reliably in both water-based and oil-based muds. The lower operating frequency (250 kHz), along with downhole digital signal processing (DSP), allows for superior performance in larger boreholes and in highly attenuating muds when compared to other similar devices.

Since the UltrasonicXplorer service utilizes an acoustic device that does not require

contact with the borehole wall, it is quite effective in horizontal wells. Its small size, 3.625 in. (92 mm), allows for operation in slim holes, and it can operate in large-diameter holes up to 16 in. (406 mm).

The tool provides an acoustic amplitude image and a travel-time image. By calibrating the travel-time image, it is possible to provide a high-resolution borehole shape.

The UltrasonicXplorer service is combinable with the BHGE STAR-HD™, EARTH Imager™, or GeoXplorer™ imaging services to provide complementary measurements and allow a more complete evaluation of the formation.

For more information on how the UltrasonicXplorer service provides high-resolution borehole acoustic images in difficult wellbore conditions, contact your BHGE representative today or visit bhge.com.

Applications

• Determining dip and strike • Structural mapping and

cross-section generation • Unconformity mapping • Obtaining data for wellbore

stability and geomechanical studies • Determining high-resolution

borehole shape • Completing detailed

fracture studies

Benefits

• Operates in any mud type • Obtains accurate

measurements in large boreholes and heavy mud

• Full 360° coverage of the borehole with images containing up to 256 data samples

• Saves rig time by providing simultaneous acoustic and micro-resistivity imaging for additional interpretation opportunities

UltrasonicXplorer imaging serviceGet high-resolution borehole acoustic images in difficult wellbore conditions

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The imaging transducer sits behind a white teflon window in the mandrel section of the UltrasonicXplorer tool, protecting the sensor from borehole debris.

Amplitude and travel time images show a set of natural fractures with minor stress enhancement.

Properties/Specifications

Instrument diameter 3.63 in. (92 mm)

Length 15.5 ft (4.71 m)

Weight 270 lb (122.7 kg)

Minimum borehole size 4.5 in. (114 mm)

Maximum borehole size 16 in. (406 mm)

Maximum temperature 350°F (177°C)

Maximum pressure 20,000 psi (138 Mpa)

Hole coverage/samples100% coverage/128, 192, or 256 samples per scan-line

Mud types Water- and oil-based muds

Tool compressive strength 4,000 lb (1 814 kg)

Tool tensile strength 52,500 lb (23 587 kg)

Conveyance method Wireline or pipe conveyed

Maximum logging speed600 ft/hr (197 m/hr) at 60 samples/ft vertical sampling

© 2017 Baker Hughes, a GE company, LLC – All rights reserved.

Baker Hughes, a GE company, LLC and its affiliates (“BHGE”) provides this information on an “as is” basis for general information purposes and believes it to be accurate as of the date of publication. BHGE does not make any representation as to the accuracy or completeness of the information and makes no warranties of any kind, specific, implied or oral, to the fullest extent permissible by law, including those of merchantability and fitness for a particular purpose or use. BHGE hereby disclaims any and all liability for any direct, indirect, consequential or special damages, claims for lost profits, or third party claims arising from the use of the information, whether a claim is asserted in contract, tort, or otherwise. The BHGE logo is a trademark of Baker Hughes, a GE company, LLC. GE and the GE monogram are trademarks of General Electric Company used under trademark license. UltrasonicXplorer, STAR-HD, EARTH Imager, GeoXplorer is a trademark of Baker Hughes, a GE company, LLC.

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