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Weatherford’s Compact oil-base mud micro-imager provides high-quality imaging 
in narrow, horizontal and deviated wellbores

Weatherford International has announced the official launch of its Compact oil-base mud micro-imager (COI), a slim-profile tool that that Weatherford says delivers full-bore, high-definition images in wells drilled with oil-, diesel- or synthetic-base muds. The tool’s 4.1-in. (104-mm) diameter enables deployment in a wide range of geometries including narrow, horizontal and highly deviated wells, according to the company.

The COI, which joins the company’s established Compact suite of formation evaluation measurement tools, features eight pads with 72 total measurement electrodes that provide optimum coverage. The images can be further enhanced through Weatherford Reveal 360 image processing. Reveal 360 technology uses structural and textural information in the measured parts of the image to reconstruct any gaps between pads.

Recently, the COI was deployed with other petrophysical measurement tools in an 8 3/4-in., oil-base mud well in Latin America. The COI captured superior images of the geology, which enabled detailed fracture analysis and stratigraphic interpretation, Weatherford reported. As a result of the image and interpretation services, the operator could reduce reservoir uncertainty and to optimize the completion design.

“The COI tool enables us to offer a more comprehensive logging program in OBM wells,” said Olivier Muller, Global Vice President of Wireline and Testing Services at Weatherford. “By analyzing COI images, we can detail the structural, stratigraphic and depositional geology around the wellbore—even in wells previously deemed too complex for imaging services.”

Compact and Reveal 360 are registered terms of Weatherford.

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