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  • PGS Prepares New GeoStreamer Data for Côte d’Ivoire
    édité le 19/07/2023 - Plus de news de "PGS" - Voir la fiche entreprise de "PGS"

PGS Prepares New GeoStreamer Data for Côte d’Ivoire
PGS is currently processing over 2 000 sq. km of new broadband 3D seismic data for offshore Côte d’Ivoire Data, for delivery in August 2023. The data benefits from the latest KPSTM processing to image prolific Cretaceous reservoir targets.

Tano Basin Discoveries

The basin has seen several high-profile discoveries made in and around the shelf edge in recent years. The drilling of the Afina-1 well (Springfield, 2019) in Ghana and the discovery and subsequent expansion of the Baleine structure (Eni, 2021/2022) have shown that there are significant volumes of hydrocarbons being found in the Cretaceous over continental crust across this well-explored basin.

Proven Source Rocks

Two main plays have been the focus for exploration in the Tano Basin: the syn-transform Lower Cretaceous and the post-transform Upper Cretaceous. The Lower Cretaceous play dominates the area around the shelf edge in both the Ghanian and Ivorian offshore. A contributing factor in this inboard dominance is the source-rock maturation history. Berriasian to Albian source rocks sit within the gas maturity window around the shelf due to a relatively thinner overburden, whereas they are likely to be over-mature in more distal syn-transform basins where the depth of burial is greater. These source rocks are paired with Albian-aged fluvial to shallow marine syn-transform sandstones, as proven in the Baobab Field (CNR, 2001).

Upper Cretaceous Oil & Gas Potential

The Upper Cretaceous system is most successful around and outboard of the present-day shelf edge due to the thick clastic section allowing for sufficient burial of shallower Cenomanian-Turonian aged source rocks. These type II source rocks have been proven to have mixed oil and gas potential. Complementing this widespread source kitchen are Albian to Santonian aged shallow to deep marine sandstone reservoirs. The largest discovery in this play is contained within the Baleine shelf-edge structure, which is reported by Eni to contain 2.5 billion barrels of oil and 3.3 trillion cubic feet (TCF) of associated gas over two main reservoir levels. This discovery has also expanded the Upper Cretaceous play to include carbonate shelf edge reservoirs.

Technology Driven Insights

GeoStreamer technology was applied in this 2023 acquisition and has been paired with modern broadband processing. The result is seismic data rich in frequency content, enabling clearer imaging of structures, faults, and traps. This AVO-compliant pre-stack data will also help to reveal subtle depositional features, significantly de-risking exploration.

About PGS

PGS ASA and its subsidiaries (“PGS” or “the Company”) is a fully integrated marine geophysical company that provides a broad range of seismic and reservoir services, including data acquisition, imaging, interpretation, and field evaluation. Our services are provided to the oil and gas industry, as well as to the broader and emerging new energy industries, including carbon storage and offshore wind. The Company operates on a worldwide basis with headquarters in Oslo, Norway and the PGS share is listed on the Oslo stock exchange (OSE: PGS).

Origine : Communiqué PGS

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