EarthStar® Ultra-Deep Resistivity Service

Innovative LWD technology delivers highest depth of detection

Knowing the location, size, and shape of your reservoir can help you place wells accurately the first time, every time. At Halliburton, we can help you enhance reservoir understanding, make better-informed geosteering decisions, and efficiently plan for future field development.

Halliburton Sperry Drilling offers the EarthStar® ultra-deep resistivity service, an industry-leading, logging-while-drilling (LWD) technology 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.

Our latest LWD innovation, advanced 3D inversion capability, provides you with an unmatched visualization of the true structure of your reservoir, helping you gain greater insight.


Maximize asset value through geostopping, geosteering and geomapping

With our EarthStar service, we can help you illuminate your reservoir:

  • Geostopping – Reduce well time and cost-per-BOE by detecting target zones early and landing the production lateral in a single-run, eliminating costly pilot holes and sidetracks.
  • Geosteering – Drill to produce by placing the well in the sweet spot, avoiding unwanted reservoir exits and non-productive zones, making geosteering decisions early while drilling.
  • Geomapping – Enhance reservoir understanding by mapping while drilling formation boundaries and hydrocarbons in place and identifying bypassed pay and fluid movements, increasing production potential and maximizing field reserves.

Let's work together to maximize the value of your assets every step of the way.

EarthStar® Ultra-Deep Resistivity Service

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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

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...

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...

Clearer Downhole Picture Emerges

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