DAKS™ EOR Module

Achieve More From Your Existing Assets

The DAKS™ EOR Module has been designed to optimise the screening of EOR processes to maximise recovery. The EOR Module includes thermal, chemical, miscible and microbial methods and provides complete documentation on the enhanced oil recovery methods proven to be effective in improving field production performance in a broad range of global analogues. The knowledge contained in the EOR Module is designed to address some of the common industry challenges related to using enhanced oil recovery techniques. Through the identification of applicable global analogues and best practices, our users can identify the most appropriate technique for their assets and understand key risks or uncertainties.

Why Use DAKS™ EOR Module?

  • The DAKS EOR Module provides an integrated environment that allows users to isolate the impact of specific EOR methods on production performance in global analogues.
  • Evaluate, benchmark and analyse EOR performance against analogues with more than 50 EOR-specific engineering parameters, in addition to the 450 geological and engineering parameters in DAKS.
  • Analyse individual techniques using a catalogue of EOR reports. These reports document lessons learned and best practices from EOR application with a broad range of global analogues.
  • Production history curves for fields and reservoirs undergoing EOR.
  • Determine and calibrate incremental recovery for EOR methods.
  • Validate EOR methods under different scenarios, reservoir conditions, properties and characteristics.
  • Screening tools to identify relevant EOR methods from proven analogue examples.

EOR Reports

The DAKS EOR Module includes a comprehensive catalogue of EOR reports. These reports document key facts, lessons learned and best practices within the context of EOR, including selection criteria, recovery targets, benefits, limitations, and design considerations. Each EOR report starts by introducing the field and includes feasibility studies, scale of EOR application and project result. This is followed by a detailed description of the reservoir, the resource and fluid properties, and implementation and performance of EOR techniques. The EOR Module also includes an EOR-specific Table of Parameters that can be used to filter and analyse analogue data with the numerous search and analytical toolkits of DAKS.

EOR Report Structure

Introduction

  • Field discovery year, location (onshore or offshore).
  • Status of reservoir at the start of EOR project and reasons for EOR.
  • Timing of EOR and infrastructure available at project start.
  • EOR project location and areal extent in the field.
  • EOR application scale: pilot, partial, full field.
  • Number of producers and injectors, well pattern and spacing.
  • EOR project result: just started (too early to tell), promising, successful, discouraging or not evaluated, incremental recovery.

Reservoir

  • Depositional environment, lithology, layer count, individual sand thickness, reservoir continuity, net to gross ratio, net pay thickness, flow barriers.
  • Clay mineral component, poro-perm, and inter-layer permeability contrast.
  • Trapping mechanism, reservoir dip, depth to top pay, drive mechanism, pressure, temperature.

Resources and Fluid Properties

  • STOIIP, resource density, EUR, recovery factor (primary, secondary, and ultimate).
  • Fluid properties: fluid distribution, residual/remaining oil saturation, formation water salinity, API gravity, oil and water viscosity, mobility ratio, wettability.

Implementation and Performance

  • Production history, secondary recovery status and timing of EOR.
  • Type and size of EOR projects, pilots from single well, well pair and multi-well patterns, through partial application, to full field implementation.
  • Number of injectors/producers, well history, pattern and spacing.
  • Injected fluid properties, viscosity, mobility, minimum miscibility pressure (MMP), injected pore volume (PV), slug size, concentration, molecular weight, air/steam quality, water/gas ratio for WAG or oil/steam ratio (OSR) for thermal EOR.
  • Conformance improvement: zonal injection, modifying injection pattern, slug size optimisation, profile modification.
  • Reservoir management practices: horizontal/infill drilling, perforation/completion, sand control, stimulation.
  • EOR application results: incremental oil recovery, agent utilization, water-cut/oil-cut history, maximum water-cut drop and lessons learned

If you would like to learn more about the DAKS EOR Module, please contact us today or get in touch at: info@ccreservoirs.com

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