Shallow Play in The Netherlands - Derisked by Seismic Characterisation

Boogaard, M. van den; Gras, R.; Hoetz, G.

doi:10.3997/2214-4609.20130438

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…17) (corresponding to a volume of 5*10 6 m 3 STP/km 2 for source rock of thickness of 1 m), and a distribution area of the Dutch SNS delta deposits where gas is generated of about 30000 km 2 results in: 15*10 10 m 3 STP ∼150 bcm of microbial gas generated in the delta per 1 m thickness of source rock (TOC 1%). It seems that the delta has been able to generate more than enough microbial gas to fill the estimated volumes of shallow gas prospects of 36-118 bcm GIIP given by Van den Boogaard et al (2013). Hence, generation of microbial gas is not the limiting factor for forming shallow gas accumulations in the delta deposits.…”

Section: Microbial Gas Generationmentioning

confidence: 99%

“…Shallow gas accumulations concern gas accumulations located at a depth of less than about 1000 m. Worldwide, and also in the Netherlands, increasing attention is focused on shallow gas accumulations and leakage of shallow gas to the seabed for various reasons, including the significance of shallow gas as an important energy resource, as a possible geohazard for drilling and wind farm locations, and the effect of gas emissions at the seabed on marine ecosystems and climate (Gentz, 2013;Judd and Hovland, 2009;Mau et al, 2015;Rollet et al, 2006;Römer et al, 2017;Schroot et al, 2005;Ten Veen et al, 2014;Van den Boogaard et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, indicators of shallow gas and gas leakage in the Dutch northern offshore have been recognized since many years and include subsurface seismic indicators, such as bright spots, flat spots and gas chimneys (Foschi et al, 2018;Kombrink et al, 2012b; https://doi.org/10.1016/j.marpetgeo.2018.07.034 Received 9 November 2017; Received in revised form 30 July 2018; Accepted 31 July 2018 Wong, 2008;Stuart and Huuse, 2012;Ten Veen et al, 2013Van den Boogaard and Hoetz, 2012;Williams and Gent, 2015), pockmarks at the seabed (Laban, 1999;Schroot and Schüttenhelm, 2003), and gas emissions from the seabed (Brussaard, 2013;Gentz, 2013;Mau et al, 2015;Römer et al, 2017;Schroot et al, 2005). Inventory of bright spots on seismic data showed that many of the potential gas accumulations occur in stratigraphic traps or in multiple stacked reservoirs in anticlinal traps above salt structures and are sometimes associated with faults (Kombrink et al, 2012b;Kuhlmann and Wong, 2008;Schroot and Schüttenhelm, 2003;Schroot et al, 2005;Ten Veen et al, 2013Van den Boogaard and Hoetz, 2012;Williams and Gent, 2015) (Fig. 2).…”

Section: Introductionmentioning

confidence: 99%

“…The shallow gas fields (Fig. 1) were not developed initially due to the limited strength of the unconsolidated sandy reservoir and the expected early water breakthrough and sand production (Van den Boogaard and Hoetz, 2012). Gas field A12-FA is the first shallow gas field that was taken into production in 2007.…”

Section: Introductionmentioning

confidence: 99%

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Generation, migration, entrapment and leakage of microbial gas in the Dutch part of the Southern North Sea Delta

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Section: Microbial Gas Generationmentioning

confidence: 99%

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confidence: 99%

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Section: Introductionmentioning

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New insights on subsurface energy resources in the Southern North Sea Basin area

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The Southern North Sea Basin area, stretching from the UK to the Netherlands, has a rich hydrocarbon exploration and production history. The past, present and expected future hydrocarbon and geothermal exploration trends in this area are discussed for eight key lithostratigraphic intervals, ranging from the Lower Carboniferous to Cenozoic. In the period between 2007 and 2017, a total of 95 new hydrocarbon fields were discovered, particularly in Upper Carboniferous, Rotliegend and Triassic reservoirs. Nineteen geothermal systems were discovered in the Netherlands onshore, mainly targeting aquifers in the Rotliegend and Upper Jurassic/Lower Cretaceous formations. Although the Southern North Sea Basin area is mature in terms of hydrocarbon exploration, it is shown that with existing and new geological insights, additional energy resources are still being proven in new plays such as the basal Upper Rotliegend (Ruby discovery) for natural gas and a new Chalk play for oil. It is predicted that hydrocarbon exploration in the Southern North Sea Basin area will probably experience a slight growth in the coming decade before slowing down, as the energy transition further matures. Geothermal exploration is expected to continue growing in the Netherlands onshore as well as gain more momentum in the UK. Since the publication of the Petroleum Geological Atlas of the Southern Permian Basin (SPB) (Doornenbal & Stevenson 2010), which gave a comprehensive overview based on more than 150 years of petroleum exploration and research from onshore UK to Poland, the basin has continued to see successful exploration wells drilled together with a diversification of drilling targets. This paper summarizes the activities over the period 2007-17 to give an update on new exploration insights. The focus of this paper is more limited than the entire SPB Atlas area and concentrates on its western part between latitudes

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Permanent Gas Emission from the Seyakha Crater of Gas Blowout, Yamal Peninsula, Russian Arctic

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et al. 2021

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The article is devoted to the four-year (2017–2020) monitoring of gas emissions from the bottom of the Seyakha Crater, located in the central part of the Yamal Peninsula (north of Western Siberia). The crater was formed on 28 June 2017 due to a powerful blowout, self-ignition and explosion of gas (mainly methane) at the site of a heaving mound in the river channel. On the basis of a comprehensive analysis of expeditionary geological and geophysical data (a set of geophysical equipment, including echo sounders and GPR was used) and remote sensing data (from space and with the use of UAVs), the continuing nature of the gas emissions from the bottom of the crater was proven. It was revealed that the area of gas seeps in 2019 and 2020 increased by about 10 times compared to 2017 and 2018. Gas in the cryolithosphere of the Arctic exists in free and hydrated states, has a predominantly methane composition, whereas this methane is of a biochemical, thermogenic and/or mixed type. It was concluded that the cryolithosphere of Yamal has a high level of gas saturation and is an almost inexhaustible unconventional source of energy resources for the serving of local needs.

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Shallow Play in The Netherlands - Derisked by Seismic Characterisation

Cited by 3 publications

References 3 publications

Generation, migration, entrapment and leakage of microbial gas in the Dutch part of the Southern North Sea Delta

Generation, migration, entrapment and leakage of microbial gas in the Dutch part of the Southern North Sea Delta

New insights on subsurface energy resources in the Southern North Sea Basin area

Permanent Gas Emission from the Seyakha Crater of Gas Blowout, Yamal Peninsula, Russian Arctic

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