The client, a gold mining company in Southeast Asia, required a versatile and powerful drilling solution for a critical exploration project.
The objective was to efficiently sample the target zone—first conducting fast, bulk sampling through overburden and weathered rock, followed by precise, high-quality core recovery from deeper, harder bedrock formations to obtain definitive mineralogical data.
The challenge was to execute a two-phase drilling program on the same site without equipment changeover, minimizing mobilization time and cost.
The rig needed to perform high-speed RC drilling to reach the target depth, then seamlessly switch to large-diameter HQ wireline coring to collect intact core samples, all while operating reliably in a remote location.
The client selected the JCD1000R for its power, versatility, and depth capacity. Its configuration was ideally suited to the project’s sequential drilling requirements.

Utilizing the 154kW Cummins engine and robust RC drilling system, the rig efficiently completed a 200-meter-deep RC hole, rapidly removing cuttings for preliminary geological analysis.
Without relocating the rig, the crew seamlessly switched the dual rotary head system to HQ wireline coring mode.
From the same setup, an additional 300 meters of large-diameter HQ core was drilled, reaching a total depth of 500 meters.

The JCD1000R rig performed flawlessly for our demanding exploration program. Its ability to handle both RC and large-diameter coring in a single deployment significantly improved our operational efficiency.
We successfully drilled 200 meters of RC hole and, from the same location, recovered 300 meters of excellent-quality HQ core. The samples fully met our geological and assay requirements.
The rig’s power, ease of method switching, and remote-control mobility were especially valuable on our site. This rig delivered exactly the versatile performance promised and helped advance our project with confidence.