Identify well target candidates

[magnesj]

Workflow description

Establish a workflow to identify cluster of connected grid cells based on a set of boundary conditions(transmissibility, permeability, pressure, oil/gas volume, ..). Compute relevant data for these clusters, and display in a text report. Create a result where the different clusters are assigned a unique integer value.

Ensemble analysis

Compute cell clusters for all realizations in an ensemble. Find a way to track a cell cluster based on some geometrical estimation. Compute statistics for each cluster across all realizations. Display as text report.

Boundary conditions and filtering

• Candidate properties to filter on before the cell cluster grow algorithm

  • K-layers
  • Pressure

• Properties that can be used to define boundary conditions

  • PORV* SOIL, PORV* SGAS or PORV* (SOIL+SGAS)
  • PERMX/Y/Z
  • TRANX/Y/Z

Draft cell cluster grow algorithm

• Define a set of cells by some filtering
• For all cells, compute PORV*SOIL and sort based on this value
• From this sorted list, find a cell with largest value not part of an already computed blob. Use this cell as the starting point for a blob.
• From this cell, grow blob based on specified boundary conditions

Cluster properties

• Oil reservoir volume
  • Sum mobile oil water flooding : PORV*(SOIL - SOWRG), check that SOIL – SOWRG is larger than zero
  • Sum mobile oil gas flooding: PORV*(SOIL - SOGCR), check that SOIL – SOGCR is larger than zero
  • Sum total PORV*SOIL
  • Sum total PORV*SGAS
  • Sum total PORV*(SOIL+SGAS)
• Gas reservoir volume
  • Sum mobile gas water flooding : PORV*(SGAS - SGCR), check that SGAS - SGCR is larger than zero
  • Sum total
• OIL/GAS standard volume
  • Sum mobile oil
  • Sum total : FIPOIL and FIPGAS
  • Average permeability
  • Average pressure