Digitization of raster well logs using multimodal prompting and computer vision techniques

A non-transitory, computer-readable medium having instructions stored thereon that are executable by a processor, the instructions including:

• instructions to obtain well log data related to one or more geological formations within the Earth’s subsurface, wherein the well log data is contained in an image format file;
• instructions to process the image format file using contour detection to extract bounding boxes for at least one data curve, the contour detection including
• extracting a plot region, and
• detecting a header for the at least one data curve;
• instructions to extract scale and depth values for at least one plot region from the bounding boxes;
• instructions to process the header through visual question answering to extract curve properties of the at least one data curve from the header;
• instructions to process the extracted curves and the plot region through text-guided segmentation, the text-guided segmentation including instructions to producing a mask for individual patches of the at least one data curve;
• and
• instructions to digitize the data curve.

A system comprising:

• a processor;
• and
• a computer-readable medium having instructions stored thereon that are executable by the processor, the instructions including:
• instructions to obtain well log data related to one or more geological formations within the Earth’s subsurface, wherein the well log data is contained in an image format file;
• instructions to process the image format file using contour detection to extract bounding boxes for at least one data curve, the contour detection including
• extracting a plot region, and
• detecting a header for the at least one data curve;
• instructions to extract scale and depth values for at least one plot region from the bounding boxes;
• instructions to process the header through visual question answering to extract curve properties of the at least one data curve from the header;
• instructions to process the extracted curves and the plot region through text-guided segmentation, the text-guided segmentation producing masks for individual patches of the at least one data curve;
• and
• instructions to digitize the data curve.