Endeavor Simulation Engine

Industry-validated mathematical models rendered in high fidelity 3D graphics

Endeavor’s software engine calculates mass amounts of data in real-time, using the latest advanced software engineering techniques. It’s an efficient system where complex and complicated scenarios can be modeled without limitations, dynamically calculating change of flow paths, decision making paths, and property changes on surface or downhole.

Agile where rules and inputs can be defined – such as equipment and materials properties – and responsive to real-time inputs, the engine can be segmented or augmented for 3rd-party application integration. The software allows flexibility to simulate an unlimited number of scenarios where advanced simulations are built and automatically calculated within the engine to include scenarios like MPD, Advanced Well Control, Deep Water, HPHT, Extended Reach Drilling.

The engine can also receive inputs and send outputs from multiple sources – external software and hardware – to tailor the experience to your organization. The agility of the software allows organizations to test and operate scenarios from complex fluid flow, either surface or downhole in unlimited directions, such as Vertical, Horizontal, through different build rates, or paths such as reverse circulation.

99.65%+ Model Accuracy

The precision and accuracy rendered from the simulations have been validated with real time rig data between 99.65%+ model accuracy. This separates Endeavor from any other simulation technology company in the world. The differences are significant.

Computational Fluid Dynamics

Endeavor’s computational fluid dynamics model consists of an industry leading circulation system that solves and analyzes problems involving fluid flows. Based on proven equations and algorithms, Endeavor’s proprietary software engines breaks down each section of drill pipe and corresponding annulus conditions to the millimeter, which calculates the relationship of velocity, pressure, temperature, and density of a moving fluid, solid or gas. Our model uses applied mathematics and physics to visualize how a liquid, solid or gas flows, and how the liquid, solid or gas affects the objects it flows past.


The hydraulics model demonstrates the flow and pressure of drilling fluid, which the simulator uses in a multi-layer approach to model the complex physical phenomena that occur inside the hydraulics system at the core of well control operations. This includes the state, movement, and interactions between drilling fluid, gas, cuttings, formation, surface and underground equipment.


Cuttings Transportation

- Complex Flow Behavior
- Particle Slip Velocity
- Vertical and Deviated Wells

Wellbore Stability

- Mud / Rock Relationship
- Ballooning
- Underbalance Conditions

Multi-Phase Flow

- Multiple Dynamic States
- Reverse Circulation
- Pump Down Kill Line


- Pressure responsiveness
- Multi-Phase compressibility
- Swab and Surge Pressures


Managed Pressure Drilling

- Pump Ramping
- Active/Passive RCDs
- Constant Bottom Hole
- Drill Pipe & Casing Pressure
- Real-time Data Feedback

Kill Methods

- Driller's Method
- Wait and Weight Method
- Volumetric
- Lube and Bleed
- Concurrent
- Low Choke
- Bullheading

Well Control

- Multiple Kick Zones
- Multiple Loss Zones
- Kick Influx Density
- ECD or ESD Kick
- Underground Blowout
- Kicks while Drilling

Cementing Operations

- Multiple Stages/Plugs
- Cement Equipment Cutaways

High Pressure High Temperature (HPHT)

Reservoir Drawdown and Stabilization


- Negative Pressure & Inflow test
- Pressure Tests
- Leak Off Testing


The simulator supports different types of fluids, oil and gas properties. The engine calls on various gas laws and applicable events when under pressures and temperatures. Many factors are calculated alongside the geometric conditions of flow.


Drilling Fluids

- Water and Oil-based Muds
- Density and Viscosity Properties
- Friction


- Expansion and Migration
- Bubble Point and Gas Flash Out
- Trapped Gas


- Solution Gas-Oil Ratio
- Surface Tension


- Density
- Density Tracking
- Mud Gas Separator
- Mud Gel Strength
- Mud Tanks (10)


Mud Systems

- Circulation
- Cuttings Removal
- Trip Tank Circulation
- Mud Tank Transfer
- Hydrates

Wellbore Breathing

Cementing Operations


Underground Blowouts


Endeavor’s mechanical earth models take in account the physical properties and processes of the bit drilling through conventional or unconventional reservoir types. By computing geological, geophysical, and geomechanical properties the software engine calculates the energy required to drill through any lithological property, as well as complicated well bore trajectories needed to do it.


Accepting an unlimited amount of subsurface properties allows the software engine to calculate the drillability of the current rock formation and provide the energy required to drill into it. Experimenting with different techniques and optimizing drilling rates and parameters allows users to experience realistic feedback when bit is on bottom.



- Unlimited formation fluid type
- Permeability properties
- Fluid Flow
- Pressure Loss
- Failure Criteria
- Rock Strength and Abrasiveness
- In Situ Stresses 
- Wellbore Breathing

Complex Well Path

Sophisticated Reservoirs

Loss Zones

Rate of Penetration 




Drilling Optimizations

Drillstring Washout

Lost Circulation

Sloughing & Differential Sticking

Bit Washout

Bit Plugging

Bit Balling

3D Torque & Drag

The Endeavor Software Engine models the variations in forces and energy affecting the entire drillstring during drilling operations. Using techniques such as Finite Element Methods, Endeavor’s system considers the known inputs and equation solvers, and in this case, models every individual joint of the drillstring and the relationship between the drillstring and annulus. The engine also considers the geospatial position in three dimensions and amalgamates all sets of element equations into the engine for real-time calculations and outputs.


Complex Well Design

- Unlimited well profiles
- Challenging trajectories
- Horizontal and Deviated wells

Pipe Geospatial Orientation

- Doglegs
- Deformation
- Friction
- Torque
- Pipe stretch


- Solution Gas-Oil Ratio
- Surface Tension


Stuck Pipe

Pipe Twist Off

Key Seating and Packoff


Differential Sticking

Directional Drilling

Extended Reach Drilling


The Endeavor Software Engine also leverages real-time downhole graphics that provides an actual representation of the subsurface relationships of formations, well plans, drillstring, casing, casing shoes and the fluid dynamic visualizations within the Drillstring, annulus and formations. The visualizations provide valuable information and context in different views such as the stick diagram screen and the 3D Geocube. Furthermore, all information available in the paper drill plan or stick diagram can be displayed in the 3D Geocube. The 3D Geocube can be spatially oriented to show the well trajectory in any angle. The simulator can handle any drill plan that the instructor designs – from simple vertical wells, to more complex well bore geometries such as build and hold, build and turn, slant hole, horizontal, extended reach, long, medium and short radius builds.


Drill Plan

Stick Diagram


Dynamic Fluid Visualizations

Real-Time Data

Zoom, Rotate, Toggles

Projected Plan vs Actual

Gas Influx & Fracture Visualization

Optimized 3D Graphics

Drill String, Casing, Casing Shoe




Contingency planning

Directional Drilling

Advanced Well Control


The Endeavor software engine builds physical behaviors within the equipment (on the surface or subsurface conditions) and interactions between pipe and other pieces of objects such as equipment – or workers – within the environment.

Dynamic Equipment Simulation

The engine detects collisions, near misses and accidents in instances such as pipe handling mistakes by calculating pendulum, gravity and inertia effects.


Dynamic Equipment Simulation

- Kinematics
- Multiple Joints
- Automatic Pressure Controls


- Inertia
- Gravity
- Pendulum Effect

Collision Detection

String Simulation

- Stabilizers, Jars, Accelerators
- Drill Collars
- Mud Motors
- Float Valves
- Drill String Valves
- Max String Hang off Weight on BOP
- Bit and Nozzle Configuration

Worker Interaction

- Near Misses
- Accidents


Equipment Operations
- Land Rig, Semi-Submersible, Jack-Up, Platform

BOP Configuration


Casing Operations

Health and Safety

Assessments and Site Inspection

Contingency Planning



The topside model offers an extensive selection of operational and equipment malfunctions to learn from, preparing operators for both routine and unexpected failures. Workers practice difficult tasks, master correct techniques, and learn how to instinctively and properly react tosituations – like unstable downhole conditions and equipment breakdowns – to prevent accidents and injury.


Real-time initialization

Control over malfunctions

- Instructor or the user 

Preprogrammed scenarios

60+ unique contingency scenarios

- Erratic Torque
- Keyseating
- Drillstring washout
- Sloughing
- Differential Sticking
- Lost Circulation
- Underbalance Conditions
- Formation Fractures
- Underground Blowouts

Equipment Malfunctions

- Hoisting System Malfunctions
- Motor Failure, IBOP Leaks
- Bit Washout, Bit Plugging
- Bit Balling

Pressure Equipment Malfunctions

- Pumps
- BOP Leaks
- Accumulators
- Choke

Pressure Problems

- Wellhead and Safetyhead Leaks
- Manifold Valve Leaks
- Multiple Kicks


Equipment Failures

Instrumentation Failures

Downhole events




The simulator reporting system collects critical data during the simulation where pertinent drilling trends can be viewed in real-time. Reporting is easily controlled from the instructor tablet, and the full-scale report can be printed out for review and archival purposes.

Simulation Reporting

The engine provides customizable reports which extracts only pertinent data and converts information into graphical representations to visualize decision making trends.


Customizable Reports

Graphical representation of data

Decision-making trends

User Specific Information

Validation of Competency

Cluster analysis captures all data

Comprehensive Simulation Overview

Empirical debrief of operations

Full export capability

Analysis on an individual or global performance basis


Competency assessments

Skill verification

Advisory notifications

Operational Optimizations

Well planning and engineering

Operational Training

Real Simulation Lives Here
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