Halliburton: EarthStar Ultra-Deep Resistivity Service
MAXIMIZES ASSET VALUE THROUGH GEOSTOPPING, GEOSTEERING, AND GEOMAPPING
OVERVIEW
The EarthStarTM ultra-deep resistivity service illuminates and maps reservoir and fluid boundaries more than 200 feet (61 meters) from the wellbore. In deepwater and mature fields, this technology helps operators to maximize asset value and plans for future field developments by mapping pockets of hydrocarbons, allowing for real-time steering decisions, and eliminating costly pilot holes and sidetracks.
The EarthStar service extends the sensitive range up to 10 times farther from the wellbore than was previously possible. It combines very-deep-reading resistivity measurements with azimuthal sensitivity and advanced inversion processing to provide estimates of the position, resistivity, and orientation of formation layers around the wellbore, along with the position of reservoir fluids within them. This information allows for improved evaluation of reserves and more efficient field development.
APPLICATIONS TO HELP MAXIMIZE ASSET VALUE
Geostopping – Reduces well time and cost per barrel of oil equivalent (BOE) by eliminating costly pilot holes and avoiding drilling hazards upfront. Detects target zones early and lands the production lateral in a single drilling run. Drills precisely and confidently to casing points immediately above critical reservoir boundaries, such as over-pressured zones, in order to minimize well-control risks.
Geosteering – Drills to produce by positioning the well optimally in the sweet spot to maximize production, avoid unwanted reservoir exits, and maximize nonproductive intervals. Allows for early decision making while drilling, and for confidently steering within large and complex wellbore structures.
Geomapping – Enhances reservoir understanding by mapping surrounding formation boundaries and estimating the volume of hydrocarbons in place. Identifies bypassed pay zones to gain more reserves and facilitate future well planning. In mature fields, geomapping helps understand fluid movements due to production or water injection.
INDUSTRY-LEADING ENGINEERED DRILLING SOLUTION
» The industry’s highest depth of investigation, at over 200 feet (61 meters), combined with advanced inversion processing techniques, delivers a comprehensive visualization of the reservoir.
» High-quality ultra-deep azimuthal resistivity and geosignal images enable improved geosteering decision making in three dimensions.
» Low system noise allows for clear delineation of geological features such as faults and low- contrast or transitional boundaries.
» Formation measurements from the EarthStar service are integrated into the proprietary RoxCTM real-time reservoir modeling, which features fast calculation speeds and a real- time visualization of the reservoir structure. Sperry Drilling geosteering experts use these measurements to help optimize well placement, reduce wellbore tortuosity, maximize reservoir contact, and plan for future field development.
