HOUSTON - August 15, 2016 - Sperry Drilling, a Halliburton (NYSE: HAL) business, today announced the
release of the 9-1/2-inch Azimuthal Lithodensity (ALD™) service, providing real-time density measurements
and images in boreholes up to 17-1/2 inches. With this addition, Halliburton offers the greatest range of
hole-size capability and is the only service company to provide this larger wellbore measurement.
ALD provides downhole density measurements, including high-quality borehole image logs, to help optimize
wellbore placement through geosteering and to reduce geological uncertainties. The measurements, delivered
via LWD, also eliminate costly wireline conveyance runs and capture data immediately after drilling when
the borehole is in the best condition.
The 9-1/2-inch ALD provides the same functionality as its smaller counterparts, including azimuthal density,
and photoelectric and acoustic stand-off measurements. This information has a wide range of applications
that can help determine a formation’s porosity, rock strength, pore pressure and borehole geometry.
“ALD addresses an important market need and is currently the only commercially available LWD density service
designed for large-diameter boreholes,” said Corey Walker, vice president of Sperry Drilling. “In areas
like the Gulf of Mexico and other regions where large boreholes are common, we are well positioned to meet
In the Gulf of Mexico, ALD has demonstrated value to operators. In one case, an operator used the density
measurement to identify shallow hydrocarbon deposits in a 17-1/2-inch borehole. In another case, an
operator used borehole density images in real-time to determine the formation dip and reservoir structure
immediately below a massive salt interval in a 16-1/2-inch borehole, where surface seismic data was poor.
Previously, operators had to perform wireline runs to retrieve these results, but ALD provided this
information without adding expensive deepwater rig time, operation costs and risks associated with wireline
Founded in 1919, Halliburton is one of the world's largest providers of products and services to the
energy industry. With over 50,000 employees representing 140 nationalities, and operations in approximately
70 countries, the company serves the upstream oil and gas industry throughout the lifecycle of the
reservoir – from locating hydrocarbons and managing geological data, to drilling and formation evaluation,
to well construction, completion and production optimization. Visit the company's website at www.halliburton.com.
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