Coring Services
The Specialised Oilfield Services team has drawn on vast coring and preservation knowledge to develop the systems and processes required on-site and in the office for precise planning and faultless execution.
Conventional Coring
Specialised Oilfield Services provides a full conventional coring service to operators and drilling contractors, onshore and offshore.
We utilise Baker Hughes manufactured coring systems and work closely with them on equipment and core head design.
Specialised Oilfield Services apply Baker Hughes inspection, maintenance standards, plus our own developed coring optimisation QAQC procedures to ensure the equipment is prepared and ready for use to the highest possible degree.
- Proven coring equipment and fit-for-purpose core recovery systems for every formation type, from unconsolidated and fractured to hard rock
- Core heads designed for the application — premium PDC cutters engineered to minimise BHA vibration, resist abrasion and impact, improve cuttings removal and reduce filtrate invasion of the core
- Non-rotating inner tube stabilisation to prevent inner barrel rotation and torque damage, and to allow longer inner barrels to be run with confidence
- Detailed coring program writing, planning and review, after-action reviews and end-of-well reports
Monitoring SureCore at the rig floor 
Andy and Damian on site
SureCore™ Real-Time Core Monitoring
SureCore is Specialised Oilfield Services' own technology, developed in Perth and taken from R&D to commercial runs.
It utilises APS positive mud pulse telemetry technology providing real-time core monitoring. The information pulsed to surface is core level, inner barrel rotation and vibration which the coring engineer uses to assist with making vital decisions during a core run.
The SureCore is preferably run with Specialised Oilfield Services coring equipment, however it can also be run as a stand-alone, with all other coring service providers' tools.
- Real-time measurement while coring (MWC)
- Immediate identification of core jamming, milling or washing
- Confirmation core is being captured and not jammed
- Understanding what is happening to the inner barrel and core in real-time — vibration, rotation, temperature
- Vastly improved core recovery, quality and data
- Certainty in respect of core-to-reservoir correlation
- Reduced risk during longer core runs and connections, and of pulling out of hole prematurely
- Substantial cost savings
Coring Optimisation (QA/QC)
This is where Specialised Oilfield Services started, and it remains a core service. Coring optimisation is independent coring expertise working for the operator — another set of experienced eyes across planning, equipment and execution. We apply this same experience and approach to preparing our own equipment for each coring operation.
- Writing or advising on the coring sections of tenders, and evaluating technical and commercial responses
- Auditing coring service providers' facilities, procedures and tool building
- Pre-job QA/QC of the load-out package — witnessing connection torque-up, gauging stabilisers, checking gamma loggers, saws, preservation equipment etc
- Reviewing coring parameters, offset data, core head selection and the service provider's coring program
- Wellsite oversight of the coring operation, or remote monitoring from town using the operator's real-time system
- Tool failure investigations and after-action reviews, with recommendations for procedural changes
Lifting inner barrels with the spreader beam 
Gamma logging core at the wellsite
Wellsite Core Processing and Preservation
Handling the core at the wellsite is as critical as cutting it. A core damaged by poor handling or preserving becomes useless for evaluation.
Specialised Oilfield Services has designed its own unique core processing system. Our team collaborated to design a system best suited to the operations challenges. By understanding core processing and what the industry has been lacking, we designed and built a system that improves HSE and ergonomics for all personnel involved. Our systems reduce the risk of core damage by providing a safer work environment.
Our wellsite engineers have extensive experience in surface handling and processing of core for immediate evaluation or shipment for off-site analysis.
- Handling the core safely from the rig floor to the preservation work area, using detailed work instructions always paying attention to the safety of the core and personnel
- Safe working environment while preserving and processing the core
- Core gamma logging, foam injection stabilising, mineral oil, wax preservation, core freezing and plugging etc
- 20 ft preservation container with dual band saws improving the efficiency of cutting the core