ToolFusion / Borehole Optical Televiewer / Engineering Tools

Project Tool: Borehole Optical Televiewer (OPTV)-Based Fracture Mapping

Specification & Integration Verification

F6 Composition for Borehole Optical Televiewer (OPTV)-Based Fracture Mapping

● Not Golden Verified ● Project Trust Verified Runnable: 0 / 2 steps

VERIFIED SCOPE

○ Classify fracture aperture from normalized gradient magnitude PASS / FAIL capable Manual Workflow

○ Reject fracture candidates based on caliper amplitude ratio PASS / FAIL capable Manual Workflow

⚠ This tool does not currently verify Azimuthal Drift Estimation via Cross-Correlatio..., Radial-Axial Illumination Compensation, Lithology-Adaptive Contrast Enhancement, Borehole Geometry-Based Stereographic Projectio..., Multi-Scale Fracture Trace Detection, Optical Fracture Typing Classifier, True-Spacing-Corrected Fracture Frequency Estim..., Multi-Log Artifact Discrimination Engine, Stereographic Orientation Cluster Analysis.

PROJECT INPUTS

Runnable deterministic steps: 0 / 2. Enter the project conditions used by this verification workflow. Prefilled values (4/5 inputs) are demonstration inputs, not recommended design values.

01Step 1: Classify fracture aperture from normalized gradient magni...Manual Workflow

Roi Intensity Matrix EXAMPLE INPUT REQUIRED

dimensionless

Pixel Size

Illumination Normalization Factor

dimensionless

To support permeability estimation and mechanical closure assessment without direct caliper or acoustic televiewer co...

02Step 2: Reject fracture candidates based on caliper amplitude ratioManual Workflow

Caliper At Fracture Depth

Mean Caliper Window

To eliminate stress-induced breakouts misinterpreted as natural fractures, improving accuracy of structural and hydro...

⚠ Runnable deterministic steps: 0 / 2. Steps marked "Input Required" or "Example Input Required" need user-provided engineering values before calculation.

ENGINEERING WORKFLOW GUIDE

This workflow contains no executable calculation steps. Review the engineering methods below.

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ENGINEERING EVIDENCE

Golden Coverage0 / 2

Project Trust11 / 11 PASS

RuntimeDeterministic

Components0 small tools, 2 steps

SCOPE & LIMITATIONS

NOT CURRENTLY VERIFIED

○ Azimuthal Drift Estimation via Cross-Correlation Tracking

○ Radial-Axial Illumination Compensation

○ Lithology-Adaptive Contrast Enhancement

○ Borehole Geometry-Based Stereographic Projection Mapping

○ Multi-Scale Fracture Trace Detection

○ Optical Fracture Typing Classifier

○ True-Spacing-Corrected Fracture Frequency Estimation

○ Multi-Log Artifact Discrimination Engine

○ Stereographic Orientation Cluster Analysis

These capabilities are outside the current verified workflow.

HOW THIS VERIFICATION WORKS

Step 1: Classify fracture aperture from normalized gradient magnitude — compares engineering inputs against deterministic thresholds and produces a PASS or FAIL decision.
Step 2: Reject fracture candidates based on caliper amplitude ratio — compares engineering inputs against deterministic thresholds and produces a PASS or FAIL decision.

This tool coordinates 2 validation steps and 0 calculation steps. The overall engineering decision uses ALL_REQUIRED_VALIDATION_PASS aggregation: only validation steps contribute to the pass/fail outcome; calculation steps produce data only.

METHODS & EQUATIONS

All formulas are resolved from canonical runtime definitions and executed deterministically by the client-side engine.

Step 1: Classify fracture aperture from normalized gradient magnitude

Manual Workflow

1. Compute Sobel gradient magnitude matrix G = √(G_x² + G_y²) over I. 2. Normalize: G_norm = max(G) × p × γ. 3. Classify: C_a = 'open' if G_norm < 0.1 mm, 'narrow' if 0.1 ≤ G_norm < 0.5 mm, 'closed' if G_norm ≥ 0.5 mm — calibrated against core-verified fractures in similar lithology.

Step 2: Reject fracture candidates based on caliper amplitude ratio

Manual Workflow

A = 1 if c_f / c_mean > 1.3, else 0; threshold 1.3 derived from empirical calibration in competent crystalline rock under moderate in-situ stress (σ_hmax/σ_v ≈ 1.4–1.8).

UNDERSTANDING THE RESULTS

PASS: A proven validation criterion passed. The engineering input satisfies the deterministic threshold.
FAIL: A proven validation criterion failed. The engineering input does not satisfy the deterministic threshold.
CALCULATED: A deterministic calculation completed, but no acceptance criterion exists for this step. CALCULATED does NOT mean PASS.
RESULT NOT VALID: Runtime executed but engineering validity requirements were not met.
INCOMPLETE: Required inputs or workflow steps are incomplete.

The overall decision reflects only validation steps. Calculation steps produce numerical results without pass/fail claims.

WHEN TO USE THIS TOOL

When deterministic Borehole Optical Televiewer engineering verification is needed for project-specific conditions.
For validation of Classify fracture aperture from normalized gradient magnitude (Step 1).
For validation of Reject fracture candidates based on caliper amplitude ratio (Step 2).
For deterministic pre-checks before formal engineering review or submission.

When NOT to use this tool: This tool does not replace laboratory testing, formal engineering analysis by a licensed professional, or code-compliance certification. It performs deterministic threshold comparison and calculation only.

ENGINEERING FAQ

What does this verification tool check?

This tool performs 2 deterministic engineering steps: (1) Classify fracture aperture from normalized gradient magnitude, (2) Reject fracture candidates based on caliper amplitude ratio.

What does a PASS result mean?

A PASS result means the validation step's deterministic threshold comparison was satisfied. It does not constitute laboratory certification or code compliance.

What is not currently verified by this workflow?

Capabilities not currently verified include: Azimuthal Drift Estimation via Cross-Correlation Tracking, Radial-Axial Illumination Compensation, Lithology-Adaptive Contrast Enhancement, Borehole Geometry-Based Stereographic Projection Mapping, Multi-Scale Fracture Trace Detection.

How many steps are golden verified?

0 out of 2 steps have been verified with deterministic golden test cases.

COMPONENT TOOLS

This workflow currently contains no bound executable Small Tools. Steps are defined by engineering methods and reference materials.

ValidationWorkflow StepOPTV fracture aperture classification using normalized intensity gradient magnitude

ValidationWorkflow StepArtifact rejection using caliper-OPTV cross-correlation amplitude thresholding