Some practical guidance for petroleum migration modeling

Baur, Friedemann; Katz, Barry J.

doi:10.1016/j.marpetgeo.2018.03.003

Cited by 32 publications

(9 citation statements)

References 12 publications

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“…(2016), Burwicz et al. (2017), Baur and Katz (2018), Nole et al. (2018) (for gas migration modeling, simulation of hydrate stability, formation, and dissociation, and hydrate kinetics and phase properties).…”

Section: Data Availability Statementmentioning

confidence: 99%

“…The Green Canyon model is based on data and information from the following references: Rowan and Weimer (1998), Burwicz et al (2017), Portnov et al (2020) (for model geometries, namely salt diapir geometry); Athy (1930), Horai (1971), Kennett and Shackleton (1975), Keen and Lewis (1982), Mello and Karner (1996), McKenna and Sharp (1998), Prather et al (1998), Revil (2000), Santschi and Rowe (2008), Hantschel and Kauerauf (2009), Boswell, Collett, et al (2012), Sloan and Koh (2007), Hantschel and Kauerauf (2009), Piñero et al (2016), Burwicz et al (2017), Baur and Katz (2018), Nole et al (2018) (for gas migration modeling, simulation of hydrate stability, formation, and dissociation, and hydrate kinetics and phase properties). The Blake Ridge Diapir model is based on data and information from the following references: Talbot (1993), Paull et al (1996), Taylor et al (2000), Hornbach et al (2005) (for model geometries, namely salt diapir geometry); Athy (1930), Horai (1971), Müller and Suess (1979), Keen and Lewis (1982), Holbrook et al (1996), Paull et al (1996), McKenna and Sharp (1998), Revil (2000), Hantschel and Kauerauf (2009), Burwicz et al (2017) (for stratigraphy, lithologies, and rock properties); Paull et al (1996), Taylor et al (2000), Hornbach et al (2005) (for heat flow and boundary conditions); Middelburg (1989),…”

Section: Data Availability Statementmentioning

confidence: 99%

“…Here, free gas migration is modeled as two-phase Darcy flow. Cell-to-cell, pressure-gradient-driven Darcy flow is considered the best migration modeling approach for fine-grained and mixed (i.e., lower permeability) lithologies and for GH modeling (Baur & Katz, 2018;Hantschel & Kauerauf, 2009;Hantschel et al, 2000;Piñero et al, 2016). A relatively low critical gas saturation value (i.e., the saturation at which the gas phase becomes mobile; discussed in Hantschel and Kauerauf (2009) and Nole et al (2018)) of 1 vol.…”

Section: Gas Hydrate Formation and Recyclingmentioning

confidence: 99%

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Salt Diapir‐Driven Recycling of Gas Hydrate

Burton

Dafov

2023

Geochem Geophys Geosyst

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By harnessing both hypothetical, synthetic basin and gas hydrate (GH) system models and real‐world models of well‐studied salt diapir‐associated GH sites at Green Canyon (Gulf of Mexico) and Blake Ridge (U.S. Atlantic coast), we propose and demonstrate salt movement (and in particular, diapirism) to be a new mechanism for the recycling of marine GH. At Green Canyon, for example, we show that by considering this newly proposed diapir‐driven recycling mechanism in conjunction with previously proposed lithological control on sandy‐reservoir‐hosted hydrate at the base of the GH stability zone (BGHSZ; ∼bottom‐simulating reflector, BSR), modeled GH saturations match drilling data. Overall, salt diapir movement‐induced GH recycling provides a temperature‐driven mechanism by which GH saturations at the BGHSZ may reach >90 vol. % and by which GH volumes near and free gas volumes beneath the BGHSZ may be increased significantly through time. Interestingly, comparison of salt diapir‐driven recycling and sediment burial‐driven recycling scenarios suggests notably higher rates of recycling via diapir‐driven versus burial‐driven processes. Our results suggest that GH and associated free gas accumulations above salt diapir crests represent particularly attractive targets for unconventional and conventional hydrocarbon resource exploration and for scientific and academic drilling expeditions aimed at exploiting GH systems. Salt basins containing GH systems—including passive margin basins of the Gulf of Mexico, southeastern Brazil, and southwestern Africa—are therefore compelling localities for studying salt‐driven GH recycling and for salt diapir‐associated natural gas exploration.

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Section: Data Availability Statementmentioning

confidence: 99%

Section: Data Availability Statementmentioning

confidence: 99%

Section: Gas Hydrate Formation and Recyclingmentioning

confidence: 99%

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Salt Diapir‐Driven Recycling of Gas Hydrate

Burton

Dafov

2023

Geochem Geophys Geosyst

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“…PetroMod™ is an industry software developed for petroleum systems modeling (Baur & Katz, 2018;Di Primio & Neumann, 2008;Hantschel & Kauerauf, 2009;Kroeger et al, 2009). In order to reconstruct the basin history, present-day units as defined by the mapped horizons were decompacted and their deposition forward modeled over time intervals as defined by their stratigraphic age, starting with the oldest layer.…”

Section: Modeling Procedures and Scopementioning

confidence: 99%

A 3‐D Model of Gas Generation, Migration, and Gas Hydrate Formation at a Young Convergent Margin (Hikurangi Margin, New Zealand)

Kroeger

Crutchley

Kellett

et al. 2019

Geochem Geophys Geosyst

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We present a three‐dimensional gas hydrate systems model of the southern Hikurangi subduction margin in eastern New Zealand. The model integrates thermal and microbial gas generation, migration, and hydrate formation. Modeling these processes has improved the understanding of factors controlling hydrate distribution. Three spatial trends of concentrated hydrate occurrence are predicted. The first trend (I) is aligned with the principal deformation front in the overriding Australian plate. Concentrated hydrate deposits are predicted at or near the apexes of anticlines and to be mainly sourced from focused migration and recycling of microbial gas generated beneath the hydrate stability zone. A second predicted trend (II) is related to deformation in the subducting Pacific plate associated with former Mesozoic subduction beneath Gondwana and the modern Pacific‐Australian plate boundary. This trend is enhanced by increased advection of thermogenic gas through permeable layers in the subducting plate and focused migration into the Neogene basin fill above Cretaceous‐Paleogene structures. The third trend (III) follows the northern margin of the Hikurangi Channel and is related to the presence of buried strata of the Hikurangi Channel system. The predicted trends are consistent with pronounced seismic reflection anomalies related to free gas in the pore space and strength of the bottom‐simulating reflection. However, only trend I is also associated with clear and widespread seismic indications of concentrated gas hydrate. Total predicted hydrate masses at the southern Hikurangi Margin are between 52,800 and 69,800 Mt. This equates to 3.4–4.5 Mt hydrate/km2, containing 6.33 × 108–8.38 × 108 m3/km2 of methane.

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“…Hydrocarbon migration is one of the most important and least understood elements in petroleum systems (Magoon and Dow, 1994;Losh et al, 1999;Aydin, 2000;Fall et al, 2012;Baur and Katz, 2018). From the source rocks to the traps, petroleum often migrates through conduit systems, including faults, carrier beds, and unconformities (Pang et al, 2013;Foschi and Cartwright, 2016;Liu et al, 2016;Xu et al, 2014Xu et al, , 2016Makeen et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Petroleum Migration Characteristics in the Northeastern Part of the Baiyun Depression, Pearl River Mouth Basin, South China Sea

Zeng

Wang

Guo³

et al. 2021

Acta Geologica Sinica (Eng)

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This paper investigates the origin and migration characteristics of petroleum in the northeastern part of the Baiyun Depression, Pearl River Mouth Basin (PRMB). The discovered petroleum in the study area is mainly located in the Lower Zhujiang Member (N 1 z 2) and mainly originated from the Enping Formation source rocks in the eastern sag. Active faults (vertical migration) and N 1 z 2 sandstones (lateral migration) acted as the petroleum migration systems. The fault activities in the Dongsha event controlled the episodic petroleum migration. Fractures in the fault zones provided effective conduits, and overpressure was the driving force. The vertical migration could not cross the fault zones laterally. The petroleum injection areas in the carrier beds were the contact zones of petroleum-migration faults and carrier beds. The lateral migration was steady-state migration, and buoyancy was the driving force. The migration pathways in the carrier beds were controlled by the structural morphology. Secondary petroleum migration in the study area could be divided into two parts: vertical migration along the fractures in the fault zones and lateral migration through preferential petroleum migration pathways (PPMPs) in the carrier beds. The petroleum migration behaviors, including migrating direction, driving force, and migration pattern, in the faults and sandstone carrier beds were quite different. This study provides a typical example for comprehending secondary migration processes and has great importance for determining future exploration targets in the deep-water area of the PRMB.

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Some practical guidance for petroleum migration modeling

Cited by 32 publications

References 12 publications

Salt Diapir‐Driven Recycling of Gas Hydrate

Salt Diapir‐Driven Recycling of Gas Hydrate

A 3‐D Model of Gas Generation, Migration, and Gas Hydrate Formation at a Young Convergent Margin (Hikurangi Margin, New Zealand)

Petroleum Migration Characteristics in the Northeastern Part of the Baiyun Depression, Pearl River Mouth Basin, South China Sea

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