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Well Test Simulation · Surface Engineering

The technical standard for well testing without uncertainty

Auralis WTS calculates operating conditions of choke, separators, flares, pipelines and PSVs in a connected network — in seconds. Full technical reports included. Validated against real field reports.

Start now How it works

✓ Local install · Windows 10/11  ·  ✓ Offline-capable · One-time online activation

Auralis WTS — Pozo Demo · 3/8" · 2,213 psia
Choke outlet
634 psia
Downstream P
✓ CRITICAL FLOW
JT Temperature
21.4 °C
PR-EOS · 1,682 psia
Flare radiation
F = 0.17
Chamberlain · API 521
28.2 m
Flame length
FLOW DIAGRAM — PFD
⬡ SOURCE
4.668 MMscfd
◇ CHOKE
3/8" Cd 0.72
▭ SEP
605 psig
🔥 FLARE
Separator
13.8 s
Gas ret.
178 s
Liq. ret.
20+
Equipment types
5
Languages
<2s
Calculation time
API 521
Flare radiation
PR-EOS
Thermodynamics
The problem

Generic tools don't speak the language of the field

Designing a well test requires calculating pressure, temperature, erosion, radiation and safety — all connected. Spreadsheets don't propagate changes. General-purpose simulators cost USD 30–50k/year and weren't designed for this.

📊

Disconnected spreadsheets

Every piece of equipment in a different file. A change in wellhead pressure forces updates across five tables. Propagation errors cost rig time.

⚙️

Generic process simulators

HYSYS and Pipesim cost USD 30–50k/year and were built for plants, not well tests. Weeks of training for a 30-minute calculation.

📋

Manual reports take hours

Compiling the full calculation document with results, alarms and safety verifications takes hours after every single test.

🔥

Undocumented flare safety zone

API 521 radiation and flame length calculated separately, often in different file versions. Safety margin never properly documented.

The product

See Auralis WTS in action

Example simulation — demo well, choke 3/8", 2,213 psia. Every number below comes from an actual calculation run by the engine.

Auralis WTS v2.9 — Demo Well · Cleanup/measurement flow · 4.668 MMscfd ✓ SIMULATION OK
✅ CORE · expires 2027-12-31
PFD TREE
⬡DEMO WELL
◇CHOKE CFM-15K3
▭SEP-BAJA TP-5
🔥BURNER
🪣FRAC TANK
PROPERTIES
CHOKE MANIFOLD CFM-15K3
Bean24/64"
Cd0.720
Rating15K PSI
⬡
SOURCE
POZO DEMO
2,213 psia
4.668 MMscfd
▶
◇
CHOKE
CFM-15K3
✓ CRÍTICO
620 psia out
▶
▭
SEPARATOR
SEP-BAJA TP-5
✓ OK
620 psia
▲
🔥
FLARE
QUEMADOR
4.57 MMscfd
▼
🪣
FRAC TANK
VAL-FTK-89
663 bbl/d
Results
PVT
HSE
CO₂e
✓ CHOKE CFM-15K3
Critical flow (sonic). Extra ΔP = 600.4 psi
✓ SEP-BAJA TP-5
Capacity OK — within operating limits
CHOKE — Outlet Conditions
Outlet Pressure
620.0
psia
Temperature
20.9
°C (PR-EOS)
SEPARATOR — Performance
Max. gas cap.
25.24
MMscfd
Actual Q
4.668
MMscfd (18.5%)
Gas ret.
21.2
seconds
Liq. ret.
519.8
seconds
FLARE — API 521 Radiation
Flame length
15.72
meters
Safe dist.
75
ft (K <1500)
🔥 Radiation Module — Ecological Burner
282
MMBtu/h released
0.27
Factor F (Chamberlain)
75 ft
Safe distance
Radiation zones (BTU/hr/ft²)
Dist. Intensity Zone
15 ft
26,990
DANGER
30 ft
6,748
DANGER
50 ft
2,429
CAUTION
75 ft
1,080
SAFE
100 ft
607
SAFE
150 ft
270
SAFE
🧪 PVT — DEMO WELL Fluid · Molar Composition
0.708
Separated gas SG
41.1°
Oil API°
0.881
Z-factor @ sep
Molar composition (%)
Methane (C1)
79.0%
Ethane (C2)
8.0%
Propane (C3)
4.0%
Butane (C4+)
3.0%
CO2 + H2S
1.4%
Pseudo C7+
5.0%

Real calculation · demo well · Choke 3/8" · Separator TP-5 · Q = 4.668 MMscfd · API 521 radiation

Solution

Everything to plan and document a well test in one place

🔗

Connected equipment network

Build the PFD by dragging equipment onto the canvas. Calculations propagate automatically from wellhead to flare in steady state.

Choke · Sep · Pipeline · Heater · PSV
🌡️

Joule-Thomson temp (PR-EOS)

JT coefficient from Peng-Robinson EOS, dependent on P, T and composition. Liquid heat-capacity buffering included.

Validated vs real field reports
🔥

Flare radiation API 521

Radiated fraction by Chamberlain (exit velocity), flame length and safety zone map. Configurable tip diameter.

Chamberlain · API 521 Fig.8
⚡

PSV / PRV sizing

API 520 orifice area for fire, blocked outlet and PCV failure. API 526 orifice catalog with MAWP verification.

API 520 · API 526 · Wichert-Aziz
🤖

AI Copilot

Describe your test in plain language and the system builds the PFD. Analyzes results and flags out-of-spec equipment.

Powered by Claude AI
📄

Automatic technical report

One click generates the Word calculation document with all results, alarms, diagrams and safety verifications — ready for delivery.

DOCX · CO₂e · PFD diagram
🌊

Multiphase flow correlations

Beggs-Brill and Orkiszewski correlations for two-phase pressure drop and liquid holdup in horizontal and vertical lines. Erosional velocity per API 14E.

Beggs-Brill · API 14E · ρV²
❄️

Hydrate prediction & inhibition

Hydrate formation temperature along the flow path. MEG/methanol injection dose calculation. Integrated alert when choke outlet approaches hydrate curve.

Hammerschmidt · Wichert-Aziz
📊

Phase envelope P-T diagram

PR-EOS phase envelope with cricondentherm and cricondenbar. Operating points plotted on the diagram to confirm single-phase or two-phase flow regime at each node.

PR-EOS · Michelsen algorithm
Process

From fluid composition to report in minutes

01 — Fluid

Define the fluid

Enter molar composition or gas gravity and API. PVT and Z-factor calculated automatically.

02 — Equipment

Build the PFD

Drag equipment from the catalog: choke manifold, separators, heaters, flare, lines and tanks.

03 — Calculate

Simulate the test

Engine solves the network in steady state. Pressures, temperatures, erosion and safety in seconds.

04 — Report

Generate the report

Full technical Word document ready for client or operator delivery.

Plans & pricing

One product, three capability levels

Annual license. Local installation on your machine. No data in the cloud.

AVAILABLE NOW
Core
For independent well testing companies and oilfield service firms
USD 2,900 /year
Regular price: USD 3,900 / year
Loading...
  • Full simulation — 20+ equipment types
  • PSV / PRV sizing (API 520/526)
  • Flare radiation API 521 (Chamberlain)
  • Equipment noise module
  • AI Copilot (analysis + PFD builder)
  • CO₂e emissions calculation
  • Equipment catalog (manufacturers)
  • Auto technical report (Word)
  • Sensitivity analysis / Batch mode
  • 5 languages (EN, ES, FR, PT, AR)
  • 1 license · 1 machine · Online activation
  • Multiphase flow — Beggs-Brill + API 14E erosion
  • Hydrate prediction + MEG/MeOH inhibition dose
  • Phase envelope P-T (PR-EOS)
Buy Core →
COMING SOON
Professional
For operators and engineering teams that approve well test designs
USD 11,900 /year
  • Everything in Core, plus:
  • Monte Carlo analysis (P10/P50/P90)
  • HSE / Automated permit to work (PTW)
  • Full GHG emissions inventory (Scope 1-3)
  • AI-assisted HAZOP
  • Real-time data connectors
  • Advanced HAZOP scenarios

In development · Q4 2026

COMING SOON
Enterprise
For large operators with multiple simultaneous projects and distributed teams
USD 34,900 /year
  • Everything in Professional, plus:
  • IPR / Nodal analysis
  • Multi-user with roles and permissions
  • SaaS — browser access, no install
  • SCADA / OPC integration
  • External REST API
  • Dedicated onboarding and support

In development · Q1 2027

Prices in USD · Annual billing · 1 license = 1 machine · Cancel anytime

Ready to plan your next well test with confidence?

Download, activate and simulate your first case in under 10 minutes. No learning curve, no scattered spreadsheets.

See plans →
About

Built by engineers, for engineers

Auralis WTS was developed by a team of petroleum engineers with hands-on experience in well testing operations across multiple basins worldwide. We spent years relying on disconnected spreadsheets and expensive general-purpose simulators that were never designed for what we actually needed in the field.

We built Auralis WTS because we couldn't find a tool that combined rigorous thermodynamic calculations, safety analysis and automatic documentation in a single, affordable platform built specifically for well testing engineers.

🌎
Built for any basin, anywhere
Validated against real well data across multiple basins. Follows API 520/521/526 and international standards applicable worldwide — from the Gulf of Mexico to the Middle East.
🔬
Field-validated calculations
Results benchmarked against commercial simulators on real well reports. Not theoretical — tested in the field.
🎯
Purpose-built for well testing
Not adapted from a generic process simulator. Every feature, every calculation, designed around well test workflows.

Privacy Policy

Last updated: June 2026

Auralis WTS (auraliswts.com) takes your privacy seriously. This policy explains what information we collect and how we use it.

What we collect

We only collect your email address and company name when you voluntarily submit them through the waitlist or contact form. We do not use tracking cookies, analytics scripts or advertising pixels on this website.

How we use it

Your email is used solely to notify you when the product or plan you requested becomes available. We do not sell, share or rent your information to third parties.

The software

Auralis WTS runs locally on your machine. No simulation data, project files or fluid compositions are transmitted to our servers. The only network activity is the one-time license activation.

Contact

Questions about this policy: sales@auraliswts.com

Get notified

We'll contact you when the plan is ready.

✓ Done! We'll reach out when it's ready.