P043 MODELING BURIAL HISTORY AND FLUID- ROCK-INTERACTIONS OF DEEP OVERPRESSURED RESERVOIRS IN THE... more P043 MODELING BURIAL HISTORY AND FLUID- ROCK-INTERACTIONS OF DEEP OVERPRESSURED RESERVOIRS IN THE CENTRAL GRABEN NORTH SEA Abstract 1 We study temperature and pressure-controlled inorganic and organic diagenetic processes in a study area of the Central Graben North Sea containing clastic Mesozoic reservoirs situated at depths of 4.5-5 km and temperatures of 170-192°C. The reservoirs are highly overpressured due to rapid burial during the last 2 Ma. We present first results of a basin modeling study focusing on the burial and temperature history of these HPHT-reservoirs. Furthermore we concentrate on organic-inorganic interactions enhancing mineral solubility and increasing porosity. This is
With the Shale Gas Information Platform SHIP, the GFZ German Research Centre for Geosciences enga... more With the Shale Gas Information Platform SHIP, the GFZ German Research Centre for Geosciences engages in the public discussion of technical and environmental issues related to shale gas exploration and production. Unconventional fossil fuels, already on stream in the USA, and now under rapid development globally, have brought about a fundamental change in energy resource distribution and energy politics. Among these resources, shale gas is currently most discussed, with the public perspective focusing on putative environmental risk rather than on potential benefits. As far as Europe's own shale gas resources are concerned, scientific and technological innovations will play key roles in defining the dimension of future shale gas production, but it is especially the public's perception and level of acceptance that will make or break shale gas in the near-term. However, opinions on environmental risks diverge strongly: risks are minor and controllable according to industry, whil...
Natural gas hydrates contain predominantly methane but sometimes also other hydrocarbon- and non-... more Natural gas hydrates contain predominantly methane but sometimes also other hydrocarbon- and non- hydrocarbon gases such as CO2 or H2S. The amount of other gases beside methane depends on the source of the gas: in case of a microbial origin the gas is almost pure methane whereas gases from thermal origin may contain a high percentage of higher-molecular weight compounds, such as ethane, propane and larger hydrocarbons. Calculated compositions of gas leaking from an oil reservoir also show a significant amount of nitrogen beside the other components. All components in addition to methane have a strong influence on the stability field of the resulting hydrate phase. In the presence of higher hydrocarbons the stability of the resulting gas hydrate is shifted to higher temperatures and lower pressures whereas the enclathration of nitrogen induces a shift of the hydrate stability to higher pressures and lower temperatures in comparison to pure methane hydrate. Furthermore, hydrate format...
The prediction of gas-oil ratios, phase state and petroleum quality ahead of drilling is a proven... more The prediction of gas-oil ratios, phase state and petroleum quality ahead of drilling is a proven element of exploration in both conventional and unconventional petroleum systems. Here we show how our compositional kinetic approach (PhaseKinetics) has been successfully applied in the Jean d'Arc Basin offshore Canada, as well as in the Bakken Formation of the Williston Basin, USA. We demonstrate how cumulative and instantaneous fluid descriptions can be developed and applied in petroleum system modeling.
Comprehensive organic–geochemical investigations were applied to Permian, Carboniferous and Devon... more Comprehensive organic–geochemical investigations were applied to Permian, Carboniferous and Devonian coals. The major goal of the investigation was to quantify differences in organic matter composition of the coals on a molecular level and to associate these differences with either i) primary composition of the precursor plant material, or ii) diagenetic processes related to burial and temperature increase or iii) evolutionary
P043 MODELING BURIAL HISTORY AND FLUID- ROCK-INTERACTIONS OF DEEP OVERPRESSURED RESERVOIRS IN THE... more P043 MODELING BURIAL HISTORY AND FLUID- ROCK-INTERACTIONS OF DEEP OVERPRESSURED RESERVOIRS IN THE CENTRAL GRABEN NORTH SEA Abstract 1 We study temperature and pressure-controlled inorganic and organic diagenetic processes in a study area of the Central Graben North Sea containing clastic Mesozoic reservoirs situated at depths of 4.5-5 km and temperatures of 170-192°C. The reservoirs are highly overpressured due to rapid burial during the last 2 Ma. We present first results of a basin modeling study focusing on the burial and temperature history of these HPHT-reservoirs. Furthermore we concentrate on organic-inorganic interactions enhancing mineral solubility and increasing porosity. This is
With the Shale Gas Information Platform SHIP, the GFZ German Research Centre for Geosciences enga... more With the Shale Gas Information Platform SHIP, the GFZ German Research Centre for Geosciences engages in the public discussion of technical and environmental issues related to shale gas exploration and production. Unconventional fossil fuels, already on stream in the USA, and now under rapid development globally, have brought about a fundamental change in energy resource distribution and energy politics. Among these resources, shale gas is currently most discussed, with the public perspective focusing on putative environmental risk rather than on potential benefits. As far as Europe's own shale gas resources are concerned, scientific and technological innovations will play key roles in defining the dimension of future shale gas production, but it is especially the public's perception and level of acceptance that will make or break shale gas in the near-term. However, opinions on environmental risks diverge strongly: risks are minor and controllable according to industry, whil...
Natural gas hydrates contain predominantly methane but sometimes also other hydrocarbon- and non-... more Natural gas hydrates contain predominantly methane but sometimes also other hydrocarbon- and non- hydrocarbon gases such as CO2 or H2S. The amount of other gases beside methane depends on the source of the gas: in case of a microbial origin the gas is almost pure methane whereas gases from thermal origin may contain a high percentage of higher-molecular weight compounds, such as ethane, propane and larger hydrocarbons. Calculated compositions of gas leaking from an oil reservoir also show a significant amount of nitrogen beside the other components. All components in addition to methane have a strong influence on the stability field of the resulting hydrate phase. In the presence of higher hydrocarbons the stability of the resulting gas hydrate is shifted to higher temperatures and lower pressures whereas the enclathration of nitrogen induces a shift of the hydrate stability to higher pressures and lower temperatures in comparison to pure methane hydrate. Furthermore, hydrate format...
The prediction of gas-oil ratios, phase state and petroleum quality ahead of drilling is a proven... more The prediction of gas-oil ratios, phase state and petroleum quality ahead of drilling is a proven element of exploration in both conventional and unconventional petroleum systems. Here we show how our compositional kinetic approach (PhaseKinetics) has been successfully applied in the Jean d'Arc Basin offshore Canada, as well as in the Bakken Formation of the Williston Basin, USA. We demonstrate how cumulative and instantaneous fluid descriptions can be developed and applied in petroleum system modeling.
Comprehensive organic–geochemical investigations were applied to Permian, Carboniferous and Devon... more Comprehensive organic–geochemical investigations were applied to Permian, Carboniferous and Devonian coals. The major goal of the investigation was to quantify differences in organic matter composition of the coals on a molecular level and to associate these differences with either i) primary composition of the precursor plant material, or ii) diagenetic processes related to burial and temperature increase or iii) evolutionary
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Papers by B. Horsfield