We provide comprehensive quality control procedures to identify data issues before analysis, through thorough image QC techniques. Problematic data sets can lead to incorrect results. Task Fronterra can also correct data issues where possible. Task Fronterra uses Geolog, Terrastation and Recall software to process image data. The three packages provide us with a choice of tools to process data, choosing the best result for further analysis.
- Graphical manipulation of images to enhance visualisation of geological features.
- Dedicated, client-specific file transfer (FTP) areas are available for data delivery and receipt via the internet. Optional encryption processes provide extra security.
Data can be loaded from a variety of formats, including DLIS, LAS, LIS, ASCII, etc. We work closely with our software providers to allow unusual formats to be loaded. Loading procedures vary with tool type and service company provider. The most common data loading services include:
- Loading, quality control and processing of all borehole images (wireline and LWD) from all the major service companies.
- Loading, orientation and depth matching of core images.
- Loading and processing of all dipmeter data.
Data Loading Requirements
Task Fronterra can work with most data. However, well organised file structures with meaningful and standardised file and log curve names allow us to most efficiently access, load and assess supplied data. This ensures the client receives the best possible interpretation in the shortest time frame.
Data Quality Control Process
Ensure all required data is present and check for any problems encountered during logging. QC checks can include:
- QC of tool orientation and behavior during logging.
- Comparison of borehole trajectory as calculated by the tool and by independent geographical survey.
- Correction of images for tool sticks and tool pulls.
- Depth matching of image to open-hole reference log suite where applicable.
- Image polarity.
- Hole condition.
- Verification against any overlapping image runs.