3:41 The challenge
- →Horizontal coal-seam-gas well pairs require precise toe-to-toe intercepts.
- →Accumulated MWD survey error produces lateral shifts of ~1.3–4.5 m in the horizontal.
- →Undetected, these shifts cause missed intercepts and lost hydraulic communication.
Our solution
Torped™ rotating-magnet ranging: magnets integrated into the directional rotary-steerable BHA, with the sensor run on wireline in the target well. A shift-vector methodology resolved true relative position at each station and steered every intercept. Delivered alongside major directional-drilling partners.
4 of 4 intercepts successful · ~30% faster by the final intercept
The result
4 intercepts
across 2 well pairs, 100% success
- ·All 4 planned intercepts achieved
- ·Closed from ~55–60 m to ~3–6 m final range (signal 0.2 → ~1,010 nT)
- ·Detected and corrected real lateral shifts of ~1.3–4.5 m
- ·~30% reduction in ranging time over the campaign
Ranging
AMR (Torped™)
Deployment
BHA While Drilling
Re-entry
Yes
Location
Queensland, Australia
Year
2025 – ongoing
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3:41
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