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Comprehensive Analysis of Water Injection in Soft Sand Formations Across Different Fields

This study focuses on the impact of contaminants on injectivity in fractured injection wells, analyzing fracture growth and containment in soft sand formations. It includes a comparison of sand face pressures versus injection rates in various regions and emphasizes best practices for injectors.

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Comprehensive Analysis of Water Injection in Soft Sand Formations Across Different Fields

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  1. Sand face pressure vs. rate (Oman)

  2. Fractured injection Fracture pressure assuming 0.7 psi/ft 0.6 psi/ft Sand face pressure (bar) Matrix injection Sand face pressure vs. rate (NAM)

  3. Sand face pressure vs. rate (Thailand)

  4. Soft sand injection (Nigeria)

  5. Soft sand injection (Nigeria)

  6. Syria - Injection rates vs. time

  7. Syria THP versus solids loading & T

  8. Coupled frac/reservoir 3 wells have the same injection pressures Field 2 wells with high injection rates 1 well with low injection rate Injection pressure history match (Oman)

  9. Shell’s interests • Comprehensive analysis of sponsor field data plus proper reporting of this • Water injection fracture monitoring (fall-off;HIT;..) • Best practices for injectors in soft formations (completion, operation) • Impact of contaminants on injectivity for fracced injection (‘beyond PEA-23 relationship’) • Fracture growth / containment at material property boundaries

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