Client Engineer

Hutchinson Builders Toowoomba was contracted to deliver portions of the Water Aquifer Injection Trial at QGC’s Woleebee Creek site. Prior to construction, Hutchinson Builders engaged Orana Engineering to perform a design review of all mechanical technical documentation associated with the Pond Transfer Pump Station. The review aimed to determine whether sufficient detailed information had been provided to allow Hutchinson Builders to successfully complete construction. Orana Engineering completed and issued a design review report which detailed recommendations from the review. During construction, Hutchinson Builders also engaged Orana Engineering to perform an inspection of a buried HDPE pipeline and to assess the construction of the pipeline against requirements of engineering drawings and specifications.

Carborough Downs Coal underground mine had transitioned from a bord and pillar mining system to longwall. The result was a need to upgrade capacity of the coal clearance conveyor system. Orana Engineering was engaged to provide Client Engineering assistance to deliver underground conveyor equipment to meet the longwall production schedule. Orana Engineering monitored vendor design progress against the schedule, performed design reviews to ensure correction of errors prior to final client approval, monitored and managed fabrication and delivery schedules and managed budget and variations in line with the contract. By co-ordinating with the client’s installation group and managing the vendor in line with the client’s schedule, the conveyors were successfully installed and made available for longwall production.

For site consistency of electrical design and installation standards and compliance with Australian standards and legislation, Glencore Oaky Creek Coal engaged Orana Engineering to prepare new site electrical specifications. The scope combined existing site specifications and practices and, where applicable, incorporated them into the new specifications. These specifications included:

• Electrical Design
• Electrical Installation 
• Preferred Electrical Equipment List
• Site Equipment Numbering
• Drawing Management

Orana Engineering’s extensive knowledge of Queensland mine sites and long-standing experience at Oaky Creek enabled specifications to be produced cost effectively and fully inclusive of site specific details. Orana Engineering continues to maintain these documents for Oaky Creek Coal, ensuring that latest versions are readily available to site personnel via Oaky Creek’s drawing management system.

The purpose of the Reagent System Upgrade at Oaky Creek was installation of new reagent storage tanks, discharge / delivery pumping systems and automated flow control distribution manifolds for the delivery of each reagent to the nominated process connections. Orana Engineering performed mechanical, electrical and control systems design, drafting and engineering for the project. The primary deliverables included scope of works, construction drawings, functional specification, BOM, spares lists and equipment / instrument data sheets. Orana Engineering managed the onsite commissioning of the system and provided a system handover to operations for implementation. An Operation & Maintenance Manual and Hazardous Area Dossier were provided on project completion.

Orana Engineering was engaged by Oaky Creek Coal to assist in design and construction of onsite camp accommodation, including an HV substation for power and potable water supply. Our brief included mechanical, electrical and control systems design, drafting and engineering for the project. Deliverables included scope of works, construction drawings, functional specification, drawing and equipment registers, commissioning and operating spares lists and equipment and instrument data sheets. Orana Engineering provided PLC configuration and commissioning assistance for pump control, acted as Client Representative during construction, managed onsite commissioning of the system, and provided a handover to operations for implementation. Operation & Maintenance Manuals for potable water storage and the HV substation were provided upon completion.

To increase productivity and maintain compliance with legislative standards, Glencore Coal employed the services of Orana Engineering to design and manage the electrical aspects of an upgrade to their existing sewage treatment plant. The project was managed on-site by others, with Orana Engineering providing electrical engineering, design, project management and construction / commissioning assistance. Upon completion of installation, Orana Engineering updated all drawings to reflect any changes made, thus providing Glencore Coal with as-built drawings which will make any future maintenance or fault-finding work more efficient and cost effective, as well as providing legislative compliance.

The Coal Handling & Preparation Plant at Oaky Creek Coal utilises a Yokogawa Distributed Control System for control and monitoring of their operation. The system incorporates Yokogawa’s OPC server and Exaquantum data historian. OCC utilises multiple Programmable Logic Controllers for specific operational purposes, with a number of PLCs interfaced back to the DCS for control and monitoring functions. Since 2005, Orana Engineering has provided 24/7 support for Oaky Creek’s control system. Day to day support is provided by remote access, which is cost effective and highly responsive. Additionally, onsite support for hardware solutions and commissioning of larger projects is provided as required.

The Glencore Port Operations in Townsville operate an export facility for minerals concentrate and refined copper within the Port of Townsville precinct. The concentrate in-loading rotaside tippler was identified as being at end of life and a feasibility study was commissioned to review a like-for-like replacement option for refurbishment of the tippler. To facilitate feasibility-level costing, Orana Engineering was asked to provide electrical engineering and mechanical engineering assistance with provision of a concept design for the proposed refurbishment and upgrade. By working closely with Glencore, and other consultants engaged on the project, Orana Engineering was able to contribute as part of a collective "owners engineering team" to the feasibility assessment of a significant engineering project in the Townsville Region.