Meana Petro
SR-14FoundationalWave 2DomainAI

Automated Reserves Estimation & DCA

In one sentence

Fits decline curves across every well in the field on a consistent basis and keeps the audit trail that a reserves report needs.

The problem

Annual reserves work is a spreadsheet campaign in which each engineer fits curves by eye with different assumptions about downtime, and the auditor spends most of the review reconstructing what was done.

How it works

Automated fitting applies Arps and modified hyperbolic models with consistent rules for downtime handling, segment selection and terminal decline. Every fit stores its parameters, the data window used and who approved it, so the audit trail is a by-product rather than a separate exercise.

Data required

  • Monthly or daily production by well with downtime recorded separately
  • Well event history: workovers, artificial-lift changes, choke changes
  • Economic limit assumptions
  • Prior reserves booking for continuity

What you get

  • EUR by well with fit parameters and diagnostic plots
  • Field roll-up by reserves category with change reconciliation year over year
  • Audit package with every assumption and approval recorded

What it cannot do

Decline analysis assumes the future resembles the fitted past under unchanged operating conditions. It has no view on a change in artificial lift, an infill campaign or a facility constraint, and it will fit a confident curve to a well whose decline is entirely caused by a partially closed choke. Event history is therefore mandatory input, not optional.

Every capability page states a real limitation. If a vendor cannot tell you where their product stops, you are not being told the truth about where it starts.

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