Fast Reservoir Model Diagnosis & Optimisation For improved well planning, delineation of remaining oil and enhanced oil recovery

Challenges

  • Geological and reservoir models offer great insight into future reservoir performance. They are crucial for identifying optimal well locations, delineating remaining reserves and improving reservoir management strategy.
  • With the enormous growth in field data, it has become increasingly more challenging to reconcile the reservoir model with multiple kinds of reservoir data and keep the models current.
  • Problem diagnosis of reservoir models is the most important first step in optimizing the reservoir models, which is often a tech-laden and experience-demanding task.

Solution

Fast Problem Diagnosis

Fast Problem Diagnosis

Repair and Optimization

Repair and Optimization

Fast Problem Diagnosis

Fast Problem Diagnosis

Repair and Optimization

Repair and Optimization

Time Turnaround
7 days (+2 days if report is required)
2 months
Time Turnaround

7 days (+2 days if report is required)

2 months

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Seismic data mismatch analysis
Production data mismatch analysis
3D Seismic Closed-the-Loop
Production history matching with multiple realisations
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Seismic data mismatch analysis

Production data mismatch analysis

3D Seismic Closed-the-Loop

Production history matching with multiple realisations

disciplines
Geophysicist and
Reservoir Engineering
Geophysicist, Geomodeller and
Reservoir Engineering
disciplines

Geophysicist and

Reservoir Engineering

Geophysicist, Geomodeller and

Reservoir Engineering

deliverables
Diagnosis report
Model improvement suggestions
Reservoir model(s) fully matched to both 3D seismic and production data
deliverables

Diagnosis report

Model improvement suggestions

Reservoir model(s) fully matched to both 3D seismic and production data

Key Technologies

Reservoir Model QC Using Seismic Data

Simulation to Seismic (Sim2Seis) is a forward modelling technique used to predict/generate the synthetic seismic response from a static or dynamic reservoir model. There are two key components of a Sim2Seis workflow: reservoir model (geological and/or simulation model) and petro-elastic models (PEMs). PEMs are rock physics functions which relate reservoir properties such as rock types, porosity and fluid saturation to the elastic properties such as compressional and shear velocities, and density. Predicted elastic properties are used to compute reflection coefficients when convolved with a wavelet generate a synthetic seismic volume (1D or 3D).

Reservoir Model QC Using Seismic Data
3D Seismic Close-the-Loop

3D Seismic Close-the-Loop (CtL)

After the mismatch between observed and synthetic seismic is analyzed, we use our proprietary tool to edit the model properties, add new flow barriers or update PVT data in order for the reservoir model to close the loop with 3D seismic data.

3D Seismic Close-the-Loop (CtL)

After the mismatch between observed and synthetic seismic is analyzed, we use our proprietary tool to edit the model properties, add new flow barriers or update PVT data in order for the reservoir model to close the loop with 3D seismic data.

3D Seismic Close-the-Loop

Assisted History Matching and Development Optimisation

In Assisted History Matching a set of realizations are run. In these a set of parameters is varied between the realizations. The parameters can either be scalars like global transmissibility multipliers, or fields e.g. porosity or permeability. Gaining a full understanding of the mass of uncertain variables and the range of objectives in a reservoir simulation model requires multiple realization workflows. The existing commercial tools may require a multitude of software licenses to run effectively. Our history matching tool can run in as short a time as possible in order to converge on a history match or to understand the impact and range of uncertainties. We can use the same tool to optimize the development the field using same multi-realisation approach.

assisted history matching & development optimization

Application

  • Peer review of a difficult-to-match reservoir model
  • Mature field redevelopment
  • Feasibility study of an enhanced oil recovery project

Benefits

  • Identify the problems in the reservoir model and get more reservoir insights
  • Ensure the geological consistency of the reservoir model
  • Improve accuracy for delineation of remaining hydrocarbon
  • Improve optimization of the location of infill wells
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We are happy to provide a customized proposal All we need to know is the problems that you face