GC composition analysis software for PVT and gas labs

Turn ChemStation exports into engineering-ready compositions.

FID/TCD merge · ISD normalization · GOR recombination

GC Reader turns Agilent ChemStation CSV exports into reviewed gas, liquid, and recombined wellstream composition reports. It handles FID/TCD detector merge, air correction, ISD normalization, component aliases, and recurring report automation without forcing lab staff into fragile copy-paste spreadsheets.

Send us a sample ChemStation export Request a 14-day trial Download datasheet

Built for PVT labs and gas-quality teams handling separator samples, wellstream recombination, and EOS handoff.

77Predefined petroleum components, editable and extendable by users
FID/TCDDual-detector merge through configurable tie components
ISDLiquid GC normalization with internal-standard settings
GORGas/liquid recombination for wellstream composition handoff

The lab problem

ChemStation gives you chromatogram exports. Engineering teams need defensible composition tables.

Raw CSV exports are rarely the final deliverable. PVT labs still have to merge detector channels, correct air contamination, map component names, normalize results, recombine gas and liquid analyses, and package a report that another engineer can review. GC Reader is built for that handoff.

Reduce manual spreadsheet risk

Replace repeated copy-paste, tie-factor calculations, and component-name cleanup with a controlled workbook workflow.

Keep chromatographer control

Methods, tie components, ISD parameters, aliases, and plus-fraction assumptions remain visible and adjustable.

Standardize recurring reports

Use the same parsing and normalization rules across repeated PVT studies, gas QC runs, and engineering handoffs.

Workflow

From Agilent export to composition report.

GC Reader is a standalone lab product for turning GC data into usable composition deliverables. Cleaned compositions can then be used in downstream EOS, dew-point, PVT, or reporting workflows.

GC Reader workflow from ChemStation export to engineering-ready report Agilent exports split into gas and liquid inputs. GC Reader reads FID and TCD files on the Gas GC page, reads liquid CSV files on the Liquid GC page, then combines both outputs on the Recombination page using GOR. Agilent GC ChemStation exports OpenLab reviewable Gas files FID.csv + TCD.csv Liquid file LIQ.csv GC Reader Gas GC page FID/TCD merge air correction GC Reader Liquid GC page ISD normalization GC Reader Recombination page Gas + liquid combined by GOR Final fluid wellstream composition

Fully controllable: every merge rule, normalization parameter, and alias can be edited per project.

Use cases

Where GC Reader fits.

PVT lab reporting

Produce consistent gas, liquid, and recombined wellstream composition tables for reservoir-fluid studies, separator samples, and EOS handoff packages.

Gas lab quality control

Standardize detector merge, air correction, normalization, and component alias rules across recurring gas chromatography methods.

Engineering composition handoff

Convert lab exports into mol% and wt% tables that reservoir, process, and flow-assurance engineers can use without reformatting.

Recurring report automation

Reduce repeated manual workbook preparation when the same GC method, component list, or report pack is produced every week or month.

Want to know whether your export can be parsed?

Send a representative ChemStation CSV export and describe the report you need. If your lab uses OpenLab exports, we can review a sample file during qualification. We will confirm the parsing path, detector merge assumptions, and whether GC Reader is a fit for your workflow.

Request sample-file review Request a 14-day trial

Software screenshots

See the workflow screens.

The interface is organized around the same lab workflow: gas GC merge, liquid GC normalization, GOR recombination, and the editable component library.

GC Reader Gas GC sheet showing FID and TCD dual-detector merge with an Agilent ChemStation export
Gas GCFID/TCD detector merge, tie-component settings, and normalized gas composition output.
GC Reader Liquid GC sheet showing ISD internal standard normalization for liquid compositions
Liquid GCInternal-standard settings, liquid composition handling, and extended component reporting.
GC Reader Recombination sheet showing GOR-based wellstream composition calculation
RecombinationGas/liquid recombination using GOR to produce a single wellstream composition.
GC Reader Component Library showing 77 petroleum components with aliases and editable properties
Component libraryPredefined petroleum components with aliases, editable properties, and lab-specific naming support.

Capabilities

Core modules.

Gas composition analysis

Reads FID and TCD detector exports, merges them through a configurable tie component, applies optional air correction, and outputs normalized gas composition tables.

Liquid composition analysis

Supports internal-standard liquid GC workflows with editable ISD component, sample weight, purity, and heavy-fraction assumptions up to C30+.

GOR recombination

Combines gas-phase and liquid-phase compositions using a user-supplied gas-oil ratio to produce a single wellstream composition for engineering use.

Component library and aliases

Maintains a configurable petroleum component library with aliases for lab-specific names, method-specific labels, and plus-fraction conventions. Naming errors and non-standard names are common in GC exports, including spelling mistakes and shorthand labels, so GC Reader flags unknown imported names and lets the user add an alias before rerunning the import cleanly.

Technical specifications

Built for practical lab deployment.

Input formatsAgilent ChemStation CSV exports; OpenLab CSV exports can be reviewed during sample-file qualification.
Analysis workflowsGas composition, liquid composition with ISD normalization, and gas/liquid recombination by GOR.
Detector handlingFID/TCD detector merge with configurable tie component and component mapping rules.
OutputsNormalized mole percent and weight percent composition tables for reporting and engineering handoff.
PlatformProtected Windows desktop application powered by Microsoft Excel; supported Excel versions are confirmed during workflow qualification.
CustomizationThe predefined 77-component library can be edited and extended by users. Component aliases, molecular weights, ISD settings, report layout, and lab-specific naming conventions can be configured by project.
Downstream calculation note: when a cleaned composition is needed for hydrocarbon dew point, phase envelope, or EOS analysis, it can be handed off to DPCloud or other engineering tools. GC Reader remains the primary product for the GC export-to-composition workflow.

Product datasheet

See GC Reader on your own export.

A concise overview of the workflow, supported analysis types, and practical deployment model for lab managers, chromatographers, and PVT teams.

Send a sample export Request a 14-day trial Download datasheet

Next step

Send us one representative export and the composition report format you want to produce. A sample file is the fastest way to confirm parser fit, component naming, and detector merge assumptions.

Trial files are prepared manually for your workflow, so the 14-day trial can use representative ChemStation exports instead of a generic demo dataset. OpenLab exports can be reviewed during qualification.