Well Testing Analysis Uncertainties Online Calculation Software:
Oil & Gas Wells
Water Wells (Aquifer wells or Petroleum terminology)
geothermal Wells
WellTest Nordisk positioning
Our core software suite MonteCarloFlow is not a utility plugin. It’s decision-risk reduction software for well test interpretation.
It quantifies uncertainty in key reservoir parameters and produces statistically defensible P10–P90 ranges —reducing interpretation bias and improving decision quality in field development planning. MonteCarloFlow is not a utility plugin. It’s a decision-risk reduction software for well test interpretation.
It is also a provider of uncertainty ranges post–well testing analysis and gives the actual dynamic uncertainty ranges, i.e., on productivity results, which, given the current state of the art of the Industry (Hydrocarbon, Water, Geothermal), is highly overlooked.
In upstream, small reductions in uncertainty can shift multi-million-dollar CAPEX, OPEX, and ABEX decisions. That’s why MonteCarloFlow belongs at the Enterprise level: it directly impacts investment outcomes, not just technical workflow speed.
What MonteCarloFlow actually delivers (outcomes first)
MonteCarloFlow delivers:
Quantified uncertainty on kh, k, skin, radius, wellbore storage and fault distance
P10–P90 statistical confidence bands (not “best guess + sensitivity”), P10–P90 ranges (Mode, Mean, and P50 also delivered)
Reduced interpretation bias across engineers and assets
Better capital allocation decisions through defensible probabilistic ranges
That’s not a “nice-to-have add-on.”
That’s risk reduction & decision making unit that drives Exploration & Appraisal Phase, Field Development planning, Operations (weekly routines & infill wells, TTRD, re-completions) reserves confidence (D&M and SEC rules, NPD rules) and reduces significantly time spent
WellTest Nordisk
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The following Software Suite MonteCarloFlow© is dedicated to perform with precision probabilistic calculations on all Well Testing Analysis results while assessing a broad range of outputs on it, including confidence intervals and statistic attributes. It is applicable to Oil Wells & Gas & Lean Gas Wells.It is provided as a SaaS including technical & user support.
The Models are based on the Publication Sources: SPE 113888. Evaluation of Confidence Intervals in Well Test Interpretation Results. SPE Publication: https://www.onepetro.org/conference-paper/SPE-113888-MS
From Authors: Azi A.C WellTest Nordisk,SPE, Imperial College & Gbo A. Neptune Energy,SPE, Imperial College, Gringarten A.C ,SPE, Imperial College,Whittle T. ,SPE, Imperial College.
And its 20+ References: Link 1
The Software Suite is based on Research work carried in 2007-2019 and the previous Milestones in Well Testing Uncertainties: Link 2
Main Assumptions: Vertical Wells & No Partial Penetration.
P90 and P10 Values are calculated for Skin, Conductivity kh, permeability k, Radius of investigation ri or d the distance to a Fault, and C the Wellbore storage.
Click on documentation in then menu to access the technical and practical details or here.