PeRET: Petroxin Reservoir Engineering Toolkit

Reservoir engineers usually store reservoir and wells’ data in Microsoft Excel spreadsheets for further analysis. These spreadsheets suffer from lack of a standard format and therefore, cannot be transferred or interchanged between different platforms or disciplines. When the number of wells increases, more log, core, well test, production rate and event data will be available and managing huge sets of data will be even more difficult.

Petroxin Reservoir Engineering Toolkit, PeRET, is a software platform for storing and managing well and reservoir data for reservoir engineering calculations and analyses. PeRET can be used for managing data on the basis of wells, layers, and reservoirs as follows:

Well Data:

  • Completion diagram
  • Petrophysical log evaluations
  • RCAL data
  • SCAL data
  • Production log and rate contributions
  • Completion/workover well events
  • Production/injection rates
  • Static and flowing pressure surveys
  • Well test data
  • Fluid PVT data
  • Temperature surveys
  • Lithology
  • Well trajectory

Layer Data:

  • Basic geological data
  • Average petrophysical properties
  • 2D maps
  • Well tops
  • Lithology

Reservoir Data:

  • In-place fluid volumes
  • Total production/injection rates
  • UGC maps
  • Bubble maps
  • Average petrophysical properties
  • Average fluid properties

Main features of PeRET include:

  • A suit for calculations related to open-hole logs and core analysis experiments
  • Quick interpretation of open-hole logs
  • Volumetric fluid in-place calculations
  • Material balance calculations
  • Decline curve analysis
  • Determination of cut-off for porosity, water saturation and shale volume
  • Rock types definition using RCAL and SCAL data
  • Calculation of OWC, OGC, and GWC using pressure gradients
  • Statistical description of data
  • Examining correlations between properties
  • Cross plots and histogram constructions
  • Net pay and average petrophysical properties
  • Quick fluid properties calculations
  • Processing mercury injection core porosimetry experiments
  • Determination of correlation between well log and core data
  • Calibration of core and log data
  • Calculation of OWC and OGC in fractured reservoir models using simulator results
  • Resampling well log or core data
  • Easy depth shifting and data editing
Cut-off determination using cumulative hydrocarbon column (CHC) method