KAPPA Emeraude 5.6: Cased Hole Logging Interpretation Software

The version number "5.6" does not correspond to an official KAPPA Emeraude release. The documented version series follows the 5.60 naming convention, with v5.60 released in January 2025 and v5.60.03 released in December 2025 . The "5.6" reference is likely an informal shorthand for the 5.60 series.

Product Overview

Emeraude is KAPPA Engineering's industry-standard platform for Cased Hole Logging interpretation, widely recognized as the reference solution for Production Logging (PL) analysis since its introduction in 1994 . It is part of the integrated KAPPA-Workstation suite alongside Saphir (Pressure Transient Analysis), Topaze (Rate Transient Analysis), Rubis (Numerical Modeling), Azurite (Formation Testing), and Citrine (Field Performance Analysis) .

Core Capabilities

Production Logging Interpretation

Emeraude provides a complete solution for single, two, and three-phase interpretations across all well environments, including high-angle and horizontal wells . It supports both conventional tools and advanced array instruments such as MAPS™, FSI™, and multi-probe tools . The software uses zoned and continuous nonlinear regression methods, with a global regression option that solves for the entire well at once, allowing constraints such as surface rates and contribution sense .

Thermal / DTS Analysis

For wells equipped with fiber optic Distributed Temperature Sensors (DTS), Emeraude couples energy and mass balance equations to perform quantitative production and injection profiling, annular leak detection, and specialized analyses including Water Injection Fall-off (warmback) and steam injection .

Distributed Acoustic Sensing (DAS)

Emeraude supports DAS data loading from .h5 files following the PRODML DAS standard. Raw data, spectra, and frequency band extracted (FBE) results are displayed as array images versus depth or time, with options to edit data, extract frequencies, and display in 3D .

Multi-Finger Caliper (MFC)

The MFC module provides complete pipe integrity analysis including penetration and reduction statistics, centralization algorithms to correct tool eccentricity, bad finger replacement, recalibration, automatic joint identification, and 2D/3D visualization of finger radius data .

Noise Logging

Emeraude loads time-driven .csv or LAS files with changing depth, automatically identifies stationary data from cable speed or depth variation, and produces versus-depth spectrograms with normalized energy and spectrum centroid calculations .

Applications

• Production and injection profiling for vertical, deviated, and horizontal wells

• Well integrity evaluation including leak detection and completion analysis

• Multi-phase flow analysis using advanced flow pattern methods

• Layered and phase-specific IPR (Inflow Performance Relationship) curve generation

• Cement and corrosion evaluation, pulsed neutron log analysis, and fiber optic DTS/DAS interpretation