Sri Ganesh Borewells

Re-bore re-drilling of existing borewells

Re-boring (or re-drilling) is the process of using an existing borewell location to: Deepen the bore Clean and reopen collapsed sections Or drill slightly offset from the old bore using the same casing area It’s usually done when a borewell has low yield or gone dry. Common methods Deepening the same bore Drill further down to reach deeper aquifers Works only if casing is intact and diameter allows Re-drilling inside existing casing Limited success; mainly for cleaning silted bores Side-tracking (offset drilling) New bore drilled 1–3 meters away from the old one Most successful option in hard rock areas