Peru TerraCube Suite

In association with Perupetro, CGG GeoSpec are undertaking new regional 2D TerraCube^PSTM and 2D TerraCube^PSDM (seismic reprocessing from field tapes) to complement a comprehensive, enhanced, workstation-ready dataset of 2D, 3D seismic and well data products. The integration of these products provides a powerful exploration tool to build a robust geological framework, de-risk petroleum plays, and develop new play concepts along this complex geological margin.

Peru 2D TerraCube^PSTM and 2D TerraCube^PSDM

Although several well-known petroleum fields are producing in the Tumbes-Progreso, Talara and Sechura Basins, Peru still offers undiscovered hydrocarbon potential along the whole Peruvian margin.

To unlock this potential, PeruPetro and CGG present an industry-leading reprocessing project designed to answer key questions on the petroleum system. Improved imaging is provided by ~15,000 km of 2D TerraCube^PSTM and TerraCube^PSDM reprocessing from field tapes, using latest source and receiver deghosting and demultiple techniques from CGG Subsurface Imaging.

• ~15,000 km seismic data currently being reprocessed from field tapes (PSTM and PSDM)
  
  

2020 GeoSpec Peru enhanced offshore seismic and well database

The reprocessing is accompanied by a comprehensive seismic dataset of TerraCube^2D, 3D TerraCube^REGRID and 3D TerraCube^XTRA.
These datasets have been navigation corrected, amplitude and phase matched, zero phased and made workstation ready. Geological ground truthing is provided by enhanced well data packages, giving an overview of previous exploration and enabling lessons to be learnt from both successes and failures.

Regional coverage offshore Peru:

• ~50,000 km TerraCube^2D enhanced 2D seismic data
• ~18,500 km² 3D TerraCube^REGRID enhanced, amplitude and phase matched, zero phased and merged 3D seismic data compilation and 3D TerraCube^XTRA noise attenuated volume
  • Generated from 47 individual 3D surveys with a total input volume of ~21,000 km²
• 10 Offshore TerraCube^WSM Well and Seismic Montage Packages
• 20 Offshore Enhanced Well Data Packages

2020 GeoSpec Peru integrated geological products

The following building blocks will provide exploration teams / oil companies with the tools they need for exploring the margin and to give geological context for a prospectivity review of offshore Peru:

• TerraCube^INTERP horizons generated from the regional seismic interpretation of the enhanced 2D and 3D datasets, updated with the 2D TerraCube^PSTM
  
• Geochemical database collating available legacy data
• Biostratigraphic review of legacy data
• 3D TerraCube^STRATAL stratal slices of the enhanced 3D seismic volumes
• 3D TerraCube^ATTRIBUTE attribute volumes extracted from the enhanced 3D TerraCube seismic volumes​

2020 GeoSpec Peru coastal basins extension:

• Additional 2D and 3D reprocessing from field tapes (PSTM/PSDM)
• Enhanced seismic and well dataset across the coastal strip
• Additional enhanced wells subject to interest
• Gravity and magnetic dataset

Time slice displaying variance attribute: highlighting faulting

Peru Prospectivity: Why Peru?

Offshore Peru is a story of two halves. The northern half, including the Talara-Tumbes-Progreso Basins, is moderately explored, with production in several oil and gas fields. The southern half is underexplored, with only five wells drilled, but with evidence of a working hydrocarbon system. In spite of this duality, the whole margin is characterised by well-developed reservoirs spanning from fractured quartzites in the Paleozoic up to Cenozoic clastics. The presence of producing fields, wells with shows, and surface seeps is proof of a working petroleum system offshore Peru. Many opportunities along the margin have been realised, with a sudden and recent increase in the number of licensed blocks, and companies such as BP, Occidental and Tullow committing to the area. Prospective acreage still remains available, but may not do so for long.

The Peruvian offshore margin is a classic example of a subduction zone where the Nazca Plate subducts eastwards beneath the South America Plate. This process has generated typical structural domains (trench, accretionary prism, forearc, etc.) where hydrocarbon exploration has proven to be productive elsewhere. The structural evolution of the Peruvian margin isolated several structural highs that allowed the development of sedimentary basins infilled with numerous potential source and reservoir rocks. Intense fracturing of the basement provides further play types.

Peru has a strong interest in the hydrocarbons sector, aiming to produce more than 100,000 BOPD by 2023, and, for this reason, several projects have been proposed to connect key infrastructure in the country. Transporting hydrocarbons safely and more quickly will reduce risk and connect the national and international markets at a lower cost.

Recently, Peruvian lawmakers have been debating and proposing a new hydrocarbon law that is expected to attract more interest from international oil companies, the fruits of which can already be seen by recent licence awards. In addition, a huge effort has been made by the Peruvian Government to make contracts simpler and easier, as well as implementing a tax regime during the exploration phase to help increase exploration and attract international investment.

Evaluation of well failure/success using stratal slices from 3D TerraCubeREGRID

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