Integrated Subsurface Studies for the Energy Industry

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Thirty years of experience participating in oil and gas projects worldwide

In some projects, our experts worked for the operators and others for the non-operator partners of high profile E&P organisations, NOCs and IOCs alike, including former PDVSA, ENI, and Hess Corporation. Also, they participated in large-scale integrated oil and gas development projects in regions including the North Sea, West Africa, Central Asia, North America, and South America.

Forty years of collective experience participating in oil and gas projects worldwide

In some projects, our experts worked for the operators and others for the non-operator partners of high profile E&P organisations, NOCs and IOCs alike, including former PDVSA, ENI, BP, and Hess Corporation. Also, they participated in large-scale integrated oil and gas development projects in regions including the North Sea, Europe, Middle East, West Africa, North America, and South America.

Geoscientists

Experienced in liaising with other domain experts, even commercial managers, to interpret and integrate diverse subsurface data and map the underground energy resources in various complex reservoirs types from sandstone to carbonate.

Petroleum and reservoir engineers

Knowledgeable in applying best practices and workflows for collecting, analysing, and interpreting fluids, pressure, and production results in different reservoirs, from heavy-oil to crude oil and from natural gas to gas condensate.

Reservoir Engineering Services
Regions

The North Sea, Central Asia, West Africa, North America, and South America.

Technical Capabilities

Subsurface data integration, reservoir assessment, faults and fractures characterisation, rock facies, rock types, and flow units, upscaling petrophysical modellings, PVT/SCAL integration, saturation modelling, reservoir monitoring and surveillance, 3D geological modelling, numerical simulation, production optimisation, field development and reservoir management.

Oil Recovery Techniques

We have experience assessing, forecasting, and optimising oil and gas production potential via proper well placement, production levels, and enhanced oil recovery techniques. We are experienced in onshore and offshore projects at different life cycle stages, from greenfields to brownfields. To explore and develop conventional resources, carbonates and sandstones in different reservoirs, crude oil, gas, and gas condensates, using improved oil recovery technologies such as waterflooding, miscible, and WAG injection.

Probabilistic Analysis

We have identified upside recovery opportunities by conducting probabilistic analysis, whether using analytical or numerical methods, to evaluate performance, surveillance strategies, and ongoing waterflood, gas and WAG injection operations.

We have maximised recovery by managing natural or more complicated depletion strategies

In offshore developments across prolific basins in the North Sea, the Gulf of Mexico, the Caspian Sea, the Equatorial Guinea Sea, the Timor Sea, and the Maracaibo Lake; as well as onshore projects in South America.

Learn about our previous projects

ABO Central Deepwater Offshore Oil Field

Location: West Africa, OML125, Nigeria.

Partners: Nigerian Agip Exploration Ltd. (NAE), a subsidiary of Eni, NNPC, Shell Nigeria and Oando Plc.

Brief experience description: construction of 3D blackoil simulation model with waterflooding for risk analysis (2005).

Abu-Rudeis-Sidri Oil Field

Location: Eastern coast of the Gulf of Suez, Egypt.

Partners: ENI and the Egyptian General Petroleum Corporation JV, PETROBEL.

Brief experience description: definition and creation of a complete geological and petrophysical database to construct the revised 3D static model (2011).

Bayu-Undan Gas and Condensate Offshore Field, Phase I

Location: Timor Sea, Australia.

Partners: Santos, ENI, INPEX, and Tokyo Timor Sea Resources.

Brief experience description: construction of 3D compositional simulation model for risk analysis (2004).

Ceuta Area 2 South and Lagunillas On/Offshore Crude Oil fields, Bolivar Coastal Complex

Location: Lake Maracaibo, Venezuela.

Partners: MARAVEN affiliate of former PDVSA.

Brief experience description: construction of 3D RMS reservoir stochastic model of the Middle Eocene Lower Misoa Formation and blackoil simulation model for enhanced oil recovery project (1995-1997) for productivity improvement opportunities evaluation.

The project’s primary objective was to increase production and reserves from thick, areally extensive sandstones that were previously shut-in at 60–70% water cuts. A secondary aim was to increase oil production from thinner, more discontinuous sandstones through a combination of drilling, completions, and waterflooding.

Deepwater Front Runner Oil Field

Location: Green Canyon block 338, The United States of America.

Partners: Murphy Exploration and Production Co., Eni US Operating Co Inc, and StatoilHydro.

Brief experience description: field performance analysis for technical recommendations on production optimisation activities, including work-overs and drillings (well A008 sidetrack), ultimate recovery forecasts, and reserve estimations (2009-2010).

Elgin-Franklin Offshore Gas Condensate Field

Location: Southern Central Graben in UK Blocks 22/30c, 22/30b and 29/5b.

Partners: Total’s EFOG, ENI, GB, E.ON Ruhrgas, Esso E&P, Chevron, Dyas, and Summit Petroleum.

Brief experience description: update 3D mid-case compositional simulation model incorporating results of new wells and forecasting future performance.

Elon Offshore Oil Field, Okume Complex

Location: Equatorial Guinea, Block G, West Africa.

Partners: Hess Corp., Tullow Oil Plc, and GE Petrol.

Brief experience description: robust and fully integrated subsurface assessments for the Elon field, managing subsurface uncertainty, incorporating dynamic data during the lasts years of production, and defining Low-BTE-High cases. In addition, conducting probabilistic performance evaluations of upside recovery opportunities, surveillance strategies, and ongoing waterflood, gas and WAG injection operations (2010-2015).

Fausta Offshore Oil Field

Location: Offshore Adriatic Sea (Italy).

Partners: ENI S.p.A.

Brief experience description: reservoir geometry modelling with mapping (Tigress). Petrophysical parameters definition with 2D maps. CLUSTER ANALYSIS in “THIN LAYERS” using Dipmeter curves. Definition of uncertain parameters for RISK ANALYSIS (1998).

Hawa and Dalia Onshore Gas Fields, Adam Concession

Location:  Southern Tunisia.

Partners: ENI S.p.A. (Agip Tunisia BV), the Tunisian state company (ETAP), Pioneer Natural Resources Company, and Paladin Expro Limited.

Brief experience description: construction of 3D Geological models; Reservoir geometry defined according to seismic maps, Hawa-1 and Hawa-2 well-tops, and regional sedimentological studies. Lithological and petrophysical description of log-facies. Probabilistic definition of hydrocarbon in-place volumes according to the GDT/ODT (“Minimum Case”) and to the Spill Point of the structure (“Maximum Case”).

Core and Log Depth Matching, cluster analysis, and lithological characterisation of the cluster Log- Facies, Net to Gross and porosity definition per well, VCL cut-offs and Cluster Log Facies, applying kriging mathematical techniques and sequential Gaussian Simulation techniques for property distribution in the models (1999-2007).

Kashagan Carbonate Gas Condensate Offshore Field

Location: Kazakhstan’s zone of the Caspian Sea.

Partners: North Caspian Sea Production Sharing Agreement consisting of Eni, Royal Dutch Shell, Total, ExxonMobil, KazMunayGas, China National Petroleum Corporation, and Inpex.

Brief experience description: depletion, gas injection, and production ramp-up strategies optimisation. Using fracture and compositional simulation modelling workflows to support sanction of the Experimental Program Development Scheme and Concept Selection for Phase II, providing reservoir performance forecasts for the design of processing facilities, including gas plants, gas injection compressors and pipelines (2005-2009).

Morpeth Crude Oil and Gas Fields

Location: Ewing Bank (EW) blocks 921, 964 and 965, Deepwater Gulf of Mexico, The USA.

Partners: ENI US Operating, Inc.

Brief experience description: construction of the Structural model and 3D static model for Hadrian South and West fields. For Prospect evaluation of various field productivity improvement opportunities, including side-tracks and vertical wells in some sand units (2009-2010).

Offshore Azeri Oil Field, Azeri-Chirag-Guneshli (ACG) Project

Location: Caspian Sea Azerbaijan-Georgia-Turkey Region.

Partners: BP, SOCAR, Chevron, Inpex, Equinor, ExxonMobil, TPAO, Itochu, ONGC Videsh.

Brief experience description: construction of 3D Geological models of ACG field for reservoir management and field development activities (2011-2016).

Offshore Belayim Land Oil and Natural Gas Field

Location: The Sinai coast of the Gulf of Suez, Egypt.

Partners: ENI and the Egyptian General Petroleum Corporation JV, PETROBEL.

Brief experience description: structural modelling of reservoir zones and layers driven by seismic data. Stratigraphic modelling conducted by well-log correlating 170 wells across four shallow oil-bearing units. Reservoir properties petrophysical modelling integrating CPI, well-logs, and cores. Prospect evaluation of various field productivity improvement opportunities, including new drillings (2007-2009).

Offshore Belayim Oil and Natural Gas Field (Belayim Marine)

Location: The Sinai coast of the Gulf of Suez, Egypt.

Partners: ENI and the Egyptian General Petroleum Corporation JV, PETROBEL.

Brief experience description: support production optimisation activities of the lower-middle Miocene reservoirs, providing revised 3D static models for evaluating the prospect of various field productivity enhancement opportunities (2011).

Pegasus Oil Field

Location: Green Canyon Area, Block 385, Deepwater Gulf of Mexico, The USA.

Partners: ENI US Operating, Inc.

Brief experience description: definition of exploration well plan in the field’s west side, recoverable volume calculation and development and exploration activities (2009-2010).

Santa Barbara Onshore Gas-Condensate Field

Location: Tejero area, El Furrial Trend in North Monagas, Venezuela.

Partners: Former PDVSA.

Brief experience description: integration of seismic, sedimentological, petrophysical, and production interpretation models to reduce uncertainty in analysing transient pressure data from 30 HTHP wells producing in the Naricual and Cretaceous formations. The field has a 1300-feet fluid column bearing highly commercial 36 degrees API rich gas condensate and proven reserves of up to 6.1B bbls of liquid. In addition, the study confirmed the presence of retrograde condensation and velocity stripping not bypassed by ineffective well hydraulic fracturing work (authored SPE77538 paper, 2001-2003).

Santome Extra-Heavy Onshore Crude Oil Field

Location: Orinoco Belt, Venezuela.

Partners: Former PDVSA.

Brief experience description: Construction of 3D Thermal simulation model (2000).

Villano onshore Oil Field

Location: Ecuador, Latin America.

Partners: Agip Oil (Ecuador) BV, a subsidiary of Eni and Petroecuador.

Brief experience description: Update 3D blackoil simulation model incorporating results of new wells and forecasting future performance (2005).

West Dación R4U Onshore Crude Oil Field

Location: Oficina Basin of Eastern Venezuela.

Partners: ENI and PDVSA.

Brief experience description: Update 3D blackoil simulation model incorporating results of new wells and forecasting future performance (2004).

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