Expert geology consultancy, projects and studies


OPC provides Geological consultancy to companies within the oil and gas industry. Our geology consultants provide geological support in all stages of the exploration and production life-cycle, including; License round block evaluations, regional and basin studies, farm out services and data room evaluations, geological and reservoir modelling and Field Development Planning.

The OPC Geology team works closely alongside our GeophysicsPetrophysics and Reservoir Engineering teams and have the capability to perform a wide range of integrated subsurface projects.

Julie BuckinghamJulie Buckingham is the Principal Geologist at OPC has more than 20 years oil industry experience, gained mainly with operators in the UKCS, working on all clastic reservoirs of the Central, Southern and Northern North Sea, and West of Shetlands. She also has experience of carbonate plays onshore UK, Italy and Middle East.

OPC has access to a full range of industry standard software technology including Petrel, IHS Kingdom and Recall.

For further information and to discuss your Geology needs please contact Piers Johnson on +44 20 7428 1111 or by email

Some recent geology projects and studies

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.
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...
Petrophysical Interpretation for North Africa
OPC performed a petrophysical interpretation of a well in North Africa, with a complex multi-mineral lithology. The work was carried out with a view to re-considering the conclusion reached by...
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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