TiGRE Uses Software to Evaluate CCS Conditions Toward Low-Carbon Energy Production Offshore UK | SLB

TiGRE Uses Software to Evaluate CCS Conditions Toward Low-Carbon Energy Production Offshore UK

Identification of the required characteristics of a gas hydrocarbon-production reservoir to identify suitable sites for deployment of TiGRE SEALS integrated CCUS projects

United Kingdom

Using a suite of integrated software, SLB helped TiGRE group evaluate carbon capture and sequestration conditions in a range of offshore fields. The low-carbon operation would export power through existing and underutilized windfarm infrastructure to power the UK National Grid.

TiGRE Uses Software to Evaluate CCS Conditions Toward Low-Carbon Energy Production Offshore UK

Evaluate CCS conditions in southern North Sea

The Transition to Integrated Gas and Renewable Energy (TiGRE) group is developing the TiGRE SEALS concept, which involves installing natural-gas-fueled, carbon-neutral, flexible power generation systems on an existing southern North Sea (SNS) platform. These systems are located near offshore windfarm substations that deliver renewable energy to the UK.

A key objective of TiGRE was to create a functional reservoir model that could evaluate TiGRE SEALS carbon capture and sequestration (CCS) operating conditions and thereby identify typical characteristics required of a gas-hydrocarbon-producing reservoir. The concept provides for the injecting and storing of CO2 produced from power generation and to export the power through wind-turbine infrastructure , which is then transmitted to the UK National Grid.

Integrate software for concept modeling

The SLB Asset Consulting Services team developed a generic multiple layer (“layer cake”) reservoir model based on a simplified representation of a typical SNS Rotliegend gas reservoir in the UK. A specific SNS field was chosen as a reference case for this purpose. The range of reservoir permeability modeled was from 8.5 mD to 170 mD, which is typical of SNS Rotliegend reservoirs.

The model considered a partially depleted reservoir where some of the hydrocarbon gas production would be used for onsite power generation and the associated produced CO2 would be captured and injected into the reservoir for storage. The concept modeling also demonstrated that, in addition to serving as CO2 storage, the CO2 injection aided additional hydrocarbon gas recovery from the reservoir (enhanced gas recovery). This was achieved using Petrel, Eclipse, Techlog, and Pipesim.

Lay foundation for future offshore work

As a follow-up, SLB screened the fields in the Irish Sea, the SNS, and the Central North Sea and identified suitable gas fields to support TiGRE’s pursuit of fields and potential partners to deploy the TiGRE concept. SLB is currently in discussions with TiGRE to help support the follow-up work required, and to eventually implement the first gas-to-wire project in the UK.

We consider SLB as a CCS subsurface technical expert and wanted to work together on the first two phases of subsurface analysis

TiGRE representative