Integrated Reservoir Modelling

Integrated Reservoir Modelling

OPCs distinctive capability in integrated reservoir modelling is the ability to integrate across as many disciplines as appropriate

It is still often true that reservoir studies are treated as linear exercises. Geophysical interpretation, petrophysical analysis, geological interpretation and modelling, dynamic modelling, production technology and facilities design are carried out sequentially. OPC believes that this approach is fundamentally flawed because it fails to account fully for interactions between the work of the different disciplines. For example:

  • The results of well test analyses can inform the geophysical and geological interpretations.
  • MDT interpretations can influence both geological and geophysical understanding.
  • Understanding of facilities design and cost can affect the appropriate reservoir engineering studies e.g. whether the higher cost of horizontal wells will be justified by reducing the required capacity of water handling facilities.

In carrying out integrated reservoir studies, we engage with all disciplines throughout the study. This delivers both better results and more cost-effective projects.

For example, if we recognise early on that historical production data is the most reliable guide to future field performance, we can minimise the money and effort spent on petrophysics. This means that integrated reservoir modelling studies carried out by OPC are typically both more competently executed and lower cost than those carried out by our competitors.

Some recent integrated reservoir modelling

CPR and technical due diligence reports
OPC reviewed the resources in two blocks in Africa and provided a Competent Persons Report (CPR) letter summarising the findings of its Due Diligence Reports and Reserves Audit. 
Technical due diligence & economic modelling
OPC was retained by an International Bank to perform a technical and operational audit of Middle East operator and develop an economic model based on the Petroleum Agreement that could...
Integrated reservoir modelling and simulation
OPC generated a static model (including full seismic interpretation and geological modelling) for a field in Kazakhstan. We then performed a history match and a production forecast for the producing...
Static modelling and waterflood simulation
OPC generated static and dynamic models, that were optimised for waterflood simulation. A history match of the model was performed, and several injection scenarios were reviewed. The most suitable scenario...
Competent Persons Report
OPC generated a Competent Persons Report (CPR) for a block, onshore South America. The report formed part of documentation published to the stock market and assisted the asset owner to...
Technical due diligence & asset evaluation
OPC provided technical due diligence and evaluation of a potential asset purchase in the UKCS, including a review of a reservoir model, production data and development scenarios
Surface and Subsurface evaluation
OPC performed a subsurface and surface evaluation of a field in West Africa, including validation of the static and dynamic model and recommendations with respect to the client’s business objectives.
PTA utilising deconvolution and ConvEx
OPC undertook a Pressure Transient Analysis (PTA) study utilising deconvolution and ConvEx. The PTA connected volumes calculated were comparable with those from modelling and ConvEx was successfully used to help...
Reserves and Development Plan Review
OPC performed a review of the reserves and development plan for a Gas Field, offshore Africa. The workscope included a reviewing of multiple static and dynamic models, petroleum economics and...
Modelling and simulation review
OPC has successfully completed a full static and dynamic modelling and simulation review in order to assess the feasibility of the operator’s appraisal and development plan.  
Integrated consultancy team onsite at NOC
Between 2006 and 2013, OPC had an exclusive contract with an NOC as the Petroleum Engineering Consultancy (Contract Engineering and Geosciences) responsible for providing technical expertise in the areas of...
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