Our services | Allyans Géologie

An Expertise at Your Service

Allyan’s Géologie is a small and medium-sized enterprise (SME) based in Koumac, serving mining operators. After 10 years of operation, it has developed expertise in several fields, making it a benchmark in New Caledonia.

Who We Are

Our Main Projects & Activities

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Logging

Since 2009, our teams have been involved in various logging campaigns, whether during the exploration phase (raw terrain) or the exploitation phase. Our expertise lies in geochemical mineral recognition within drill samples taken from explored or operational subsoils. This activity is essential for the qualification of deposits on a mining site.

The technical expertise surrounding this know-how is an integral part of Allyan’s Géologie’s heritage. The management regularly organizes in-house training sessions dedicated to logging and updates its reference frameworks through dedicated monitoring and regular exchanges with mining sector educators in New Caledonia.

RHEOLAT

Since 2017, our teams have been conducting TML (Transportable Moisture Limit) studies. This process, mandated by regulatory requirements, involves analyzing ore before loading onto bulk carriers to determine its moisture characteristics. This assessment is crucial for ensuring the safe maritime transport of ore by minimizing the risk of liquefaction, a phenomenon that increases the likelihood of capsizing.

Notable incidents, such as the sinking of the SEA PROSPECT in Indonesia, which resulted in 10 missing persons, and the VINALINES QUEEN disaster in 2011, which claimed 22 lives, underscore the importance of this safety measure.

Quality monitoring of shipments

Our latest project is this one, inspired by our frontline quality control methods. This process ensures continuous monitoring to guarantee that the exported ore meets our clients’ expectations and requirements, particularly in terms of the expected nickel content.

This initiative complements the RHEOLAT project, which focuses on determining the moisture limit threshold.

Water management

The Tiébaghi mining massif is a geological formation that contains an elevated groundwater table, leading to the natural formation of ponds or water reserves in any depressions or pits. To facilitate mining operations and ensure dry working areas, our team manages water evacuation in accordance with a specific set of guidelines defined with our client. This process includes the discharge of clean water (meeting specific measurable criteria) into designated areas that do not harm the existing ecosystems.

Process studies

Most of our clients are constantly seeking improved performance. To support them, we conduct technical studies tailored to their specific challenges in mining operations (or related activities). These preliminary studies help define processes or techniques that effectively address their operational issues.

For instance, one of our clients faced difficulties in drying export-designated ore stockpiles due to continuous rainfall over a period exceeding six months. In response, our team conducted a stockpile drying study using small-scale test models over the course of a month. This assessment helped determine whether investing in dedicated storage infrastructure for the ore would be both financially and logistically viable, while ensuring seamless integration into established processes.

Benne scraping

Linked to the process studies project, this initiative was born from one of our clients’ desire to achieve cost savings in response to the cyclical crises affecting nickel prices. Their cost-cutting strategy led us to conduct a study on optimizing export ore stockpiles, highlighting the losses caused by ore sticking to the bottom of truck buckets due to moisture.

As a result of this analysis, a structured methodology for bucket scraping was implemented to minimize these losses and improve overall efficiency.

Environmental monitoring

With the goal of reducing the environmental impact of mining activities, some of our clients rely on us to conduct environmental monitoring of their sites. This primarily involves measuring polluted water in hydrocarbon storage areas and collecting data from DIEM plates designed for dust monitoring in protected areas.