Drill cores contain information that can remain useful long after an exploration campaign has ended. However, when physical samples, photographs, and records are stored separately, it can be difficult to locate a specific interval.
A core library brings these elements together under a single identification system. This way, each core can be physically preserved while also being accompanied by photographs, digitized images, and records related to its depth and drilling history.
What is a core library?
A core library is not simply a collection of photographs of the cores. What matters is that each image and record can be linked to the core sample from which it originates.
To achieve this, it is necessary to preserve data such as:
- Drilling identification: a code assigned to each well or borehole.
- Depth: the interval to which each section of the core belongs.
- Photographs: images showing the condition of the sample.
- Description: observations made during the core’s examination.
- Digital files: high-resolution photographs, scans, or other records generated during the project.
Thus, when it is necessary to review a sample, its path from the borehole to the corresponding image or record can be traced.
How is the digital record of the core samples created?
Digitization begins with the physical organization of the samples. Before taking photographs or scanning, each box and each section must retain its depth references. Otherwise, an image may become disconnected from the interval to which it belongs.
- Organizing and Identifying Samples
The first step is to keep the core samples in the order in which they were recovered and to ensure their depth references remain visible.
This information will later link the sample to its photograph, description, and digital file. Consistent identification also makes it easier to locate a specific interval as the library grows.
- Creating a Record Through Photography
Photographing cores provides a visual reference and allows you to review characteristics that may change or be difficult to recall after handling the sample.
To ensure comparable images, maintain similar capture criteria. Lighting, framing, scale, and tray identification should remain consistent across photographs.
- Incorporating core scanning
Core scanning allows for the generation of detailed digital images and their association with drilling data. Depending on the system used, these images can be incorporated into platforms where they can be viewed alongside depth and other records.
From Visual Recording to Core Analysis
Once the core has been digitized, the images can be used to examine various characteristics without having to continuously handle the original sample.
What Can Be Observed in an Image?
A high-quality photograph or scan can capture visual information about:
- Changes in lithology.
- Fractures and structures.
- Color and texture.
- Degree of visible alteration.
- Contacts between different materials.
This is useful for reviewing specific intervals, comparing drill holes, or revisiting an observation made during the drilling campaign.
The Role of Hyperspectral Scanning
Hyperspectral scanning of cores goes a step beyond conventional photography. Instead of recording only what can be seen with the naked eye, it captures information related to how materials respond to different types of light.
This can help identify minerals and changes in rock composition that are not always evident in a standard image.
How to Organize a Core Library for Future Reference
When a campaign yields hundreds or thousands of images, finding a specific photograph can become a challenge if the files are not organized according to a consistent system.
Maintaining a Consistent Identification System
A simple sequence might be:
Borehole → depth → tray → image → record
For example, if a sample collected from a specific depth range needs to be reviewed, that data should link directly to the corresponding photograph or scan.
It’s also a good idea to use the same codes on the trays, photographs, and digital files. This reduces the risk of confusing samples from different drill holes.
Avoid Isolating Images
A photograph on its own says little about the exact location from which it was taken. When linked to depth, borehole, and description, it becomes much more valuable for future reviews.
Therefore, digitization should be considered part of the sample record and not a separate task.
A Library That Preserves More Than Just Images
Creating a core library involves linking the physical core to all the information generated about it: identification, depth, photographs, scans, and geological records.
Photographs provide a visual reference, scans offer more detailed digital images, and hyperspectral techniques can add mineralogical information. When these data share a common identifier, it becomes much easier to return to a specific interval and review what was observed during drilling.
At Coreplast, we develop core sample trays designed to facilitate the organization, identification, and safekeeping of samples during exploration work.
Contact us and find the solution that best suits your project’s needs!
FAQs
What material is recommended for an industrial waste container?
It depends on the type of waste and where it will be used. When choosing a container, it’s important to consider whether it will be exposed to moisture, impacts, sunlight, or other conditions that could affect its use and lifespan.
Where should waste containers be placed?
Ideally, they should be located near the points where waste is generated, but without blocking hallways, entrances, or walkways. Additionally, the location should allow for easy removal when necessary.
Why is it important to label waste containers?
Because it helps ensure that each type of material is disposed of in the correct place and facilitates separation right at the point of generation. Clear labeling also reduces the risk of mixing waste that should be kept separate.
