Synthetic Wellbore Image Generation from Survey Data
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Solution Overview
Problem
Borehole images are not typically available in the petroleum industry, hindering the identification of sub-surface geological structures and well design during drilling.
Innovation Solution
A method and system for generating synthetic images in wellbores by constructing one-dimensional arrays from input data, including wellbore geometry and survey data, to create a sinusoidal representation of physical properties, which are then used to construct a synthetic image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If borehole images are not obtained through actual imaging tools, then equipment complexity and cost are reduced, but the availability of sub-surface geological structure information is lost
Solution Approach 1:
The patent creates synthetic borehole images by copying and transforming existing wellbore data (geometry, survey data, formation data) into visual representations that mimic actual borehole images. This allows the system to generate informative images without requiring complex physical imaging tools in the borehole.
Solution Approach 2:
The patent introduces synthetic image generation as an intermediary process between raw wellbore data and geological interpretation. Instead of directly obtaining images through complex imaging tools, the system uses computational processing of available data to create intermediate visual representations that facilitate geological analysis.
2Loss of information
If synthetic images are generated from available wellbore data, then information availability is improved, but image accuracy and reliability may be compromised
Solution Approach 1:
The patent performs preliminary processing of wellbore data before image generation, including calculating maximum positive amplitudes and organizing data into structured arrays. This preliminary organization ensures that the synthetic images are based on systematically processed information, improving reliability.
Solution Approach 2:
The patent transforms wellbore data parameters into visual image parameters through mathematical relationships. By changing the representation form from numerical data arrays to visual sinusoidal patterns, the system maintains information integrity while making it accessible for geological interpretation.
3Manufacturing precision
If detailed wellbore data is processed to create accurate synthetic images, then image quality is improved, but processing time and computational complexity increase
Solution Approach 1:
The patent divides the image generation process into discrete steps: data reception, array construction, sinusoidal line generation, and image assembly. This segmentation allows for efficient processing of complex data while maintaining image quality through systematic treatment of each component.
Data Source
AI summary
The present invention is a method of creating an image in a wellbore that includes receiving input data from a wellbore at one or more measured depths. The input data including geometry of wellbore, tool setting, survey data, trajectory of wellbore (button angle) etc. One dimensional arrays are constructed for a measured depth in one direction by a) calculating maximum positive amplitudes from input data and b) obtaining a sinusoidal line at a measured depth from the maximum positive amplitudes and assigning the sinusoidal line physical property. The calculations of a) and b) are repeated to obtain multiple arrays. A synthetic image is constructing from the multiple arrays and a synthetic image is outputted.