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From raw measurements to Quanta Geo processed images
Starting from raw data measurement, the Quanta Geo Z90 Processing workflow leverages Techlog native wellbore imaging applications and the Z90 processing algorithms to produce photo-realistic static and dynamic wellbore images. The eight images on the left correspond to the button impedance amplitude arrays at low frequency, the middle and right images are the processed static and dynamic images
Depth-matching Quanta Geo dynamic images
The DepthMatcher activity is a simple and efficient tool to correct the depth misalignment between borehole images generated respectively from upper arms and lower arms of Quanta Geo tool; it automatically correlates and matches features found on both images. The display on the left is the Quanta Geo dynamic image before depth matching, and on the right same image after depth matching
Quanta Geo blending and final quality control layouts
The Quanta Geo with DepthMatcher plug-in provides a quality control module. Using color codes shown in track 1, the QC layouts indicate which processing mode each image pixel is using to generate the ZTBC image and whether bad blend happens. The middle track shows three impedivity curves from three processing modes plus the final blended impedivity, in the right track bad blend is indicated
Quanta Geo Z90 Processing Workflow with DepthMatcher
Build interpretation-ready wellbore images in a few clicks using the Quanta Geo Z90 Processing Workflow with DepthMatcher. Starting from raw impedance and phase arrays measured by the Quanta Geo tool, the workflow applies tool image processing methods to deliver photo-realistic static and dynamic wellbore images and provides pad images misalignment correction with the DepthMatcher workstep
From Quanta Geo Raw Measurements To Quantitative Images
Quanta Geo Inversion is an advanced processing taking as input measured amplitude and phase images; it outputs formation resistivity and standoff images. The combination of these images can be used to identify open features (fracture, vug, breakout) filled with resistive drilling fluids. Combining Quanta Geo resistivity with deep resistivity logs can characterize drilling fluid invasion process
Pre-Inversion Step To Select Mud Calibration Zone
Quanta Geo Pre-Inversion allows the selection of a 10ft interval with strong OBM effect to derive mud property for further processing. A good mud calibration zone shows smooth calipers, relatively low impedivity value and homogeneous impedivity on all 8 pads images
Inversion QC Step of Resistivity and Standoff Images
Quanta Geo Inversion quality control of the processed resistivity and standoff images according to mathematical convergence and borehole status condition. The display provides multiple QC information on the inverted results for the users to assess whether the current processing parameter combination is acceptable or not
Quanta Geo Inversion Workflow
Quanta Geo Inversion workflow allows the automation of the processing activities from the raw data depth matching (using the Depth Shift Table from DepthMatcher step in Quanta Geo Z90) until the generation of final concatenated multiple images