Seismic imaging of complex geometry

Forward modeling of sandstone intrusions

Antonio Grippa* (Corresponding Author), Andrew Hurst, Giuseppe Palladino, David Iacopini, Isabelle Lecomte, Mads Huuse

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Sandstone intrusions form large bedding-discordant sandstones that intruded into finer grained, less permeable host strata. They form naturally sand-propped hydraulic fractures that constitute a connected network of permeable conduits through which fluids escape to the Earth's surface. Saucer-shaped sandstone intrusions are among the largest volume intrusions and are commonly resolved on seismic data. Outcrop analogues of seismically-resolved saucers-shaped intrusions reveal that many attendant intrusions, in particular dikes, are undetected in seismic data. Seismic forward modeling of a detailed outcrop description of a saucer-shaped intrusion demonstrates that intrusions steeper than 45° are undetected and that up to 40% of the entire volume of sandstone intrusions is not seismically imaged. Wedge geometry – associated with discordant contacts between different lithologies – causes constructive and destructive amplitude interference, creating imaging artefacts of sandstone thickness and geometry. Comparison of the outcrop seismic models with 3D seismic data from Volund oilfield demonstrate both the similarity of the saucer-shaped intrusions and the distribution and quantity of dikes that may be undetected (ca. 78%) using subsurface data. Lack of detection of dikes has direct implications on the valuation of upward migration of fluids and an overestimation of seal capacity. This therefore has major implications when using seismic data to evaluate waste sequestration or to execute hydrocarbon or groundwater exploration and production.
Original languageEnglish
Pages (from-to)51-63
Number of pages13
JournalEarth and Planetary Science Letters
Volume513
Early online date28 Feb 2019
DOIs
Publication statusPublished - 1 May 2019

Fingerprint

forward modeling
sandstones
Sandstone
intrusion
Levees
sandstone
Imaging techniques
geometry
Geometry
outcrops
rock intrusions
seismic data
dike
outcrop
Fluids
Lithology
Hydrocarbons
Seals
Groundwater
Sand

Keywords

  • seismic forward modeling
  • sandstone intrusion
  • tuning wedge
  • discordant contacts
  • waste sequestration
  • vertical transmissivity
  • MIGRATION
  • FLUID-FLOW
  • PANOCHE HILLS
  • FIELD
  • GIANT INJECTION COMPLEX
  • carbon sequestration
  • MECHANISMS
  • REMOBILIZATION
  • MASS-TRANSPORT
  • CALIFORNIA
  • sand injectites
  • INSIGHTS

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Seismic imaging of complex geometry : Forward modeling of sandstone intrusions. / Grippa, Antonio (Corresponding Author); Hurst, Andrew; Palladino, Giuseppe; Iacopini, David; Lecomte, Isabelle; Huuse, Mads.

In: Earth and Planetary Science Letters, Vol. 513, 01.05.2019, p. 51-63.

Research output: Contribution to journalArticle

@article{08d728e7afc447fdad48a2c332f08a4e,
title = "Seismic imaging of complex geometry: Forward modeling of sandstone intrusions",
abstract = "Sandstone intrusions form large bedding-discordant sandstones that intruded into finer grained, less permeable host strata. They form naturally sand-propped hydraulic fractures that constitute a connected network of permeable conduits through which fluids escape to the Earth's surface. Saucer-shaped sandstone intrusions are among the largest volume intrusions and are commonly resolved on seismic data. Outcrop analogues of seismically-resolved saucers-shaped intrusions reveal that many attendant intrusions, in particular dikes, are undetected in seismic data. Seismic forward modeling of a detailed outcrop description of a saucer-shaped intrusion demonstrates that intrusions steeper than 45° are undetected and that up to 40{\%} of the entire volume of sandstone intrusions is not seismically imaged. Wedge geometry – associated with discordant contacts between different lithologies – causes constructive and destructive amplitude interference, creating imaging artefacts of sandstone thickness and geometry. Comparison of the outcrop seismic models with 3D seismic data from Volund oilfield demonstrate both the similarity of the saucer-shaped intrusions and the distribution and quantity of dikes that may be undetected (ca. 78{\%}) using subsurface data. Lack of detection of dikes has direct implications on the valuation of upward migration of fluids and an overestimation of seal capacity. This therefore has major implications when using seismic data to evaluate waste sequestration or to execute hydrocarbon or groundwater exploration and production.",
keywords = "seismic forward modeling, sandstone intrusion, tuning wedge, discordant contacts, waste sequestration, vertical transmissivity, MIGRATION, FLUID-FLOW, PANOCHE HILLS, FIELD, GIANT INJECTION COMPLEX, carbon sequestration, MECHANISMS, REMOBILIZATION, MASS-TRANSPORT, CALIFORNIA, sand injectites, INSIGHTS",
author = "Antonio Grippa and Andrew Hurst and Giuseppe Palladino and David Iacopini and Isabelle Lecomte and Mads Huuse",
note = "We acknowledge the support of sponsoring companies of Phase 3 of the Sand Injection Research Group (SIRG). The Norwegian Petroleum Directorate (NPD) are thanked for providing seismic data from Volund oil field. Also, we wish to acknowledge NORSAR Innovation AS for providing the academic licence for the SeisRoX software and the California Bureau of Land Management for facilitating access to the outcrop area.",
year = "2019",
month = "5",
day = "1",
doi = "10.1016/j.epsl.2019.02.011",
language = "English",
volume = "513",
pages = "51--63",
journal = "Earth and Planetary Science Letters",
issn = "0012-821X",
publisher = "ELSEVIER SCIENCE BV",

}

TY - JOUR

T1 - Seismic imaging of complex geometry

T2 - Forward modeling of sandstone intrusions

AU - Grippa, Antonio

AU - Hurst, Andrew

AU - Palladino, Giuseppe

AU - Iacopini, David

AU - Lecomte, Isabelle

AU - Huuse, Mads

N1 - We acknowledge the support of sponsoring companies of Phase 3 of the Sand Injection Research Group (SIRG). The Norwegian Petroleum Directorate (NPD) are thanked for providing seismic data from Volund oil field. Also, we wish to acknowledge NORSAR Innovation AS for providing the academic licence for the SeisRoX software and the California Bureau of Land Management for facilitating access to the outcrop area.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Sandstone intrusions form large bedding-discordant sandstones that intruded into finer grained, less permeable host strata. They form naturally sand-propped hydraulic fractures that constitute a connected network of permeable conduits through which fluids escape to the Earth's surface. Saucer-shaped sandstone intrusions are among the largest volume intrusions and are commonly resolved on seismic data. Outcrop analogues of seismically-resolved saucers-shaped intrusions reveal that many attendant intrusions, in particular dikes, are undetected in seismic data. Seismic forward modeling of a detailed outcrop description of a saucer-shaped intrusion demonstrates that intrusions steeper than 45° are undetected and that up to 40% of the entire volume of sandstone intrusions is not seismically imaged. Wedge geometry – associated with discordant contacts between different lithologies – causes constructive and destructive amplitude interference, creating imaging artefacts of sandstone thickness and geometry. Comparison of the outcrop seismic models with 3D seismic data from Volund oilfield demonstrate both the similarity of the saucer-shaped intrusions and the distribution and quantity of dikes that may be undetected (ca. 78%) using subsurface data. Lack of detection of dikes has direct implications on the valuation of upward migration of fluids and an overestimation of seal capacity. This therefore has major implications when using seismic data to evaluate waste sequestration or to execute hydrocarbon or groundwater exploration and production.

AB - Sandstone intrusions form large bedding-discordant sandstones that intruded into finer grained, less permeable host strata. They form naturally sand-propped hydraulic fractures that constitute a connected network of permeable conduits through which fluids escape to the Earth's surface. Saucer-shaped sandstone intrusions are among the largest volume intrusions and are commonly resolved on seismic data. Outcrop analogues of seismically-resolved saucers-shaped intrusions reveal that many attendant intrusions, in particular dikes, are undetected in seismic data. Seismic forward modeling of a detailed outcrop description of a saucer-shaped intrusion demonstrates that intrusions steeper than 45° are undetected and that up to 40% of the entire volume of sandstone intrusions is not seismically imaged. Wedge geometry – associated with discordant contacts between different lithologies – causes constructive and destructive amplitude interference, creating imaging artefacts of sandstone thickness and geometry. Comparison of the outcrop seismic models with 3D seismic data from Volund oilfield demonstrate both the similarity of the saucer-shaped intrusions and the distribution and quantity of dikes that may be undetected (ca. 78%) using subsurface data. Lack of detection of dikes has direct implications on the valuation of upward migration of fluids and an overestimation of seal capacity. This therefore has major implications when using seismic data to evaluate waste sequestration or to execute hydrocarbon or groundwater exploration and production.

KW - seismic forward modeling

KW - sandstone intrusion

KW - tuning wedge

KW - discordant contacts

KW - waste sequestration

KW - vertical transmissivity

KW - MIGRATION

KW - FLUID-FLOW

KW - PANOCHE HILLS

KW - FIELD

KW - GIANT INJECTION COMPLEX

KW - carbon sequestration

KW - MECHANISMS

KW - REMOBILIZATION

KW - MASS-TRANSPORT

KW - CALIFORNIA

KW - sand injectites

KW - INSIGHTS

UR - http://www.scopus.com/inward/record.url?scp=85062151278&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/seismic-imaging-complex-geometry-forward-modeling-sandstone-intrusions

U2 - 10.1016/j.epsl.2019.02.011

DO - 10.1016/j.epsl.2019.02.011

M3 - Article

VL - 513

SP - 51

EP - 63

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

SN - 0012-821X

ER -