Fast, accurate geothermal ranging for confident well placement and continuous drilling optimization
talk to an expertEffective geothermal development depends on precise well placement, reliable ranging measurements, and dependable performance in challenging drilling environments. As part of our RangeStar™ magnetic ranging services portfolio, RangeStar™ Geothermal Well Spacing and Intercept Service provides accurate magnetic detection that supports continuous drilling and helps operators place wells with confidence. It delivers fast survey execution, stable measurement quality, and smooth integration with geothermal workflows.
Built on proven magnetic measurement technology, this ranging solution helps operators space, align, and intercept wells accurately across a wide range of geothermal applications. Its extended detection distance, high‑resolution data, and streamlined deployment support efficient drilling and reduce uncertainty as well trajectories evolve. This performance helps improve placement accuracy and supports fast, informed operational decisions.
Extended‑distance magnetic detection helps operators identify target wells accurately and refine spacing for geothermal doublets, closed‑loop systems, and advanced geothermal designs. Stable magnetic signals and noise‑resistant measurements support consistent accuracy in varied formations. The ability to rotate during continuous definitive survey measurements improves hole cleaning and produces high‑quality data under more favorable downhole conditions.
Operational reliability comes from an integrated bottomhole assembly design that supports both short and long-distance detection without extra tools or reconfiguration. Downhole power generation helps maintain performance in challenging environments, and established technologies from the MGT™ magnetic guidance tool and BaseStar® service provide a dependable foundation. Integration with automation and remote operations allows surveys to trigger automatically, collect measurements in real time, and return to drilling without manual steps. This increases consistency and reduces the potential for human error.
Magnetic ranging provides long‑distance detection with high accuracy and stable signal performance suited for geothermal drilling. It maintains detection distances up to 394 ft (120 m) and preserves signal quality without depth‑related degradation. A downhole power generation design removes battery dependence and helps maintain reliable operation during long geothermal intervals. These capabilities reduce downtime tied to battery changes or tool failures and simplify logistics in remote or higher temperature locations.
The technology improves drilling efficiency by capturing data during rig connections and completing surveys in minutes. A short three‑minute pumps‑off period limits electronics exposure to heat while providing fast survey turnaround. High‑resolution sampling, continuous inclination and azimuth measurements, and integration with rotary steerable assemblies help maintain wellbore accuracy and reduce directional uncertainty. These advantages support confident well placement and help reduce non‑productive time.
The magnetic ranging approach supports geothermal well spacing, precise intercept paths, and parallel or dual drilling operations where directional control is essential. It is suited for closed‑loop and advanced geothermal systems that require consistent well alignment and accurate subsurface positioning. It also supports no‑access ranging when direct entry into the target well is not possible.
| Parameter | Value |
|---|---|
| Maximum detection distance | 394 ft (120 m) |
| Distance accuracy <213 ft | 5% |
| Distance accuracy <394 ft | 10% |
| Direction accuracy <213 ft | 3° |
| Distance accuracy <394 ft | 10° |
| Temperature range | 32 to 320°F (0 to 160°C) |
| Maximum pressure | 25,000 psi |
| Ranging survey time | 10 min. |
| Deliverables | 3 min. |
Magnetic ranging solutions demonstrate a well-established history of expertise, proving our dedication to precision when navigating the intricacies of well proximity applications
The MGT™ magnetic guidance tool is an active magnetic ranging solution that allows parallel wells to be drilled within highly accurate separation tolerances.
Integrates critical measurements for wellbore placement, drilling performance optimization, and borehole quality.
Fully digital and web-enabled to monitor and control drilling and logging operations from anywhere
Increase the consistency and performance of well construction operations by integrating subsurface automation, digital twins, and remote operations
Halliburton delivers a low cost per megawatt in geothermal well construction by driving efficiencies in asset development, from field exploration through field optimization
The GuideStar™ service provides continuous definitive survey measurements using high-resolution sampling for precise wellbore placement
