Category: Mature Water Flood Analysis

Brief

Mature Water Flood Analysis is a workflow for identifying the performance gaps in the mature waterfloods performance.

The goal of the water flooding is to inject the least possible water to produce the most possible oil in the shortest possible time.

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Gridding - Divide the field into Blocks/Patterns using the Bubble map by identifying dominant no-flow boundaries. No-flow boundary is a line in the reservoir where reservoir fluids do not cross. Oil and water on either side of the line flow away from this line.
Calculate the well allocation factors WAF for blocks/patterns.
Calculate blocks/patterns fluid production and injection volumes. Number of active producers and injectors. Current and total well stock.
Calculate HCPV from the blocks/patterns areas and Well Log Interpretation summaries
Match total HCPV to the STOIIP numbers by changing the edge Blocks areas
Calculate waterflood performance indicators: HCPVinj, RF, VRR, VRRcum
Make Plots (by field, by reservoir, by block): History, RF vs HCPVinj, RF vs well spacing, WOR vs Np, VRR vs t
Make Maps (by reservoir) showing Blocks: HCPV, HCPVinj, RF, VRR
Make Cross sections
Calculate Blocks Enhancement List
Create Action List
Execute

Repeat steps 5-6-7-8-9-10 routinely (monthly, quarterly, half year).

The typical actions are:

Wolcott, D. ; Applied Waterflood Field Development, Energy Tribune Publishing Inc., 2009.

The following 12 pages are in this category, out of 12 total.