Exploration Drill Rigs

Mineral exploration and geological coring are usually targeted. Core samples are taken for resource evaluation, geotechnical investigation, and site studies, while surface disturbance is kept low compared with large open excavation.

Wireline diamond coring is commonly supported, because faster core retrieval is enabled and non-productive time is reduced.

A rig is normally matched after these items are shared: target depth, hole diameter/core size, ground type (clay/sand/cobble/rock), drilling angle requirements, site access limits, and the expected meters per shift. A “90–95% typical work” rule is often used, so the rig is sized for the work that will be done most of the time.

A single number (only depth, only power, or only price) is often used. Better results are usually achieved when the full system is considered: rotation torque, feed capacity, hoist, mud/pump match, and rod size compatibility.