Logging-While-Drilling (LWD)

Advanced sensor technologies deliver reliable formation evaluation data in real time

 LWD tools acquire formation evaluation data to help you gain greater reservoir insight, leading to timely decision-making and accurate well placement.

Halliburton Sperry Drilling offers a wide array of LWD tools that can be engineered to provide specific reservoir data for multiple applications, including geosteering, petrophysical analysis, geomechanical analysis, reservoir fluid characterization, and reservoir mapping while drilling.  

Our latest LWD innovation, advanced 3D inversion capability, provides you with unmatched visualization of the true structure of your reservoir, helping you enhance reservoir understanding.

Let us help you maximize the value of your assets through increased production and lower costs every step of the way.


EarthStar® Ultra-Deep Resistivity Service

EarthStar® Ultra-Deep Resistivity Service

Industry-leading, logging-while-drilling (LWD) service that is proven to map reservoir and fluid boundaries up to 225 feet (68 meters) from the wellbore – over twice the depth of investigation of the previous industry standard.

9½-inch Azimuthal Lithodensity (ALD™) LWD Service

9½-inch Azimuthal Lithodensity (ALD™) LWD Service

Provides high-quality measurements of formation density and photoelectric (Pe) factor for reliable reservoir evaluation and formation images.

Technical Papers - OnePetro

Technical Papers

Enhances reservoir understanding in extreme-temperature (200°C/392°F) environments
Technical Papers - OnePetro
Quasar Trio® M/LWD Triple-Combo Service
Retrieve LWD triple-combo FE data of resistivity, density, and porosity in 200°C environments

Logging-While-Drilling (LWD)

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Related Information

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1 of 5
Oilfield Technology: M/LWD
This article discusses the applications and benefits of the Radian™ Service and 9 1/2-inch ALD™ Service.
Clearer Downhole Picture Emerges

This article highlights how the EarthStar® service illuminates and maps ultra-deep reservoirs and fluid boundaries in the wellbore.

Applying ultra-deep LWS resistivity technology successfully in a SAGD operation

This article details how an operator used the EarthStar® service in a complex, high-resistivity structure to successfully place the well accurately...

New ultra-deep resistivity service identifies bypassed oil in mature North Sea field

This article details how an operator used the EarthStar® service and increases pay zone by 50% in water-flooded reservoir

Operator Significantly Enhances Reservoir Insight from 3D Inversion

This case study details how new 3D inversion helped an operator shed new light on a mature reservoir...