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@COMMENT{BibTeX export based on data in FAU CRIS: https://cris.fau.de/}
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@inproceedings{faucris.110832744,
author = {Drews, Michael},
booktitle = {Conference Proceedings},
faupublication = {no},
peerreviewed = {unknown},
title = {{3D} {Joint} {Density} {Mapping}},
year = {2008}
}
@article{faucris.211630915,
abstract = {Leak-off and formation integrity test data from the central part of the Bavarian Foreland Molasse Basin have been investigated in detail to infer information about the stress regime of the Cenozoic basin fill. The detailed analysis of leak-off test data from the Bavarian Foreland Molasse Basin and lithology-dependent analysis of leak-off test and formation integrity data is the first of its kind in a published study. Only test data from shale-rich sequences have been considered. All data yield minimum principal stresses that are smaller than an estimated vertical stress range. In combination with critical stress and frictional equilibrium theory, the data indicate that the stress regime in the greater Munich area and possibly the far-field stress regime of the Bavarian Foreland Molasse Basin are most likely of an extensional nature (normal-faulting stress regime). Under the assumption of frictional equilibrium, a friction coefficient between 0.2 and 0.4 best explains failure in shale-dominated sections of the central part of the Bavarian Foreland Molasse Basin and can be used to estimate the minimum horizontal stress SHmin. However, even in the spatially restricted domain of the greater Munich area the stress regime might vary towards a strike-slip stress regime; most likely in the vicinity of fault zones and/or due to variations in mechanical rock strength. The results of this study have great impact and relevance to improved planning of drilling campaigns, future numerical modelling and the general understanding of the evolution of the Bavarian Foreland Molasse Basin. Additional leak-off tests and extended leak-off tests are recommended to fully unravel the spatial variation and geologic control factors of the stress regime of the entire Bavarian Foreland Molasse Basin.},
author = {Drews, Michael and Seithel, Robin and Savvatis, Alexandros and Kohl, Thomas and Stollhofen, Harald},
doi = {10.1016/j.tecto.2019.02.011},
faupublication = {yes},
journal = {Tectonophysics},
keywords = {North Alpine Foreland Basin; Bavarian Foreland Molasse Basin; Stress regime; Leak-off test; Minimum principal stress},
pages = {1-9},
peerreviewed = {Yes},
title = {{A} normal-faulting stress regime in the {Bavarian} {Foreland} {Molasse} {Basin}? {New} evidence from detailed analysis of leak-off and formation integrity tests in the greater {Munich} area, {SE}-{Germany}},
url = {http://www.sciencedirect.com/science/article/pii/S0040195119300563},
volume = {755},
year = {2019}
}
@inproceedings{faucris.106925764,
author = {Drews, Michael and et al.},
author_hint = {Drews, M, Jokanola O, D'Onfro P, Heppard P},
booktitle = {AAPG Annual Conference},
faupublication = {no},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Considering} {Lithological} {Variability} in {Top} {Seal} {Analysis}.},
venue = {Houston},
year = {2014}
}
@article{faucris.230060128,
abstract = {The authors regret that the following mistakes in the description and graphical representation of the normal compaction trend (NCT) have been erroneously carried forward by the authors from an earlier version of the manuscript to the final version of the manuscript, which does not allow for reproduction of the normal compaction trend used in the study: 1. For all pressure analyses conducted in the study, the constant exponent n of equation (3) has been set to 2.0, instead of 2.19. Therefore, paragraph 1 on page 41 should be read as “[…] which we set to a value of 2.0 for shale, similar to Issler (1992).”2. The vertical stress, necessary to calculate the NCT as represented in Figs. 4, 5 and 6, has been erroneously calculated with a phi0-parameter of 0.35 instead of 0.3 (compare equation (2) and table 1). For the three green data points (Oligocene Normal Pressure, NW-Molasse) of Fig. 5 we spotted an additional minor error in the calculation routine of the vertical effective stress. We attached the corrected figures to the end of this corrigendum.We would like to emphasize that the errors have not been carried forward in the remainder of the study and manuscript. The corrections are only necessary to being able to reproduce the used normal compaction trend, but do not affect any of the results, conclusions or any other figures or written passages of the manuscript. The authors would like to apologize for any inconvenience caused. [Figure presented] Fig. 4. Shale velocities vs. true vertical depth (TVD) for normally pressured Oligocene (yellow and green dots) and Mesozoic shales (blue dots). Oligocene shales from wells in the north-western Bavarian Foreland Molasse Basin (wells marked by green dotted envelope on the map inset and green dots on the velocity-depth plot) generally have faster velocities, which might be attributed to more heterolithic sequences and/or increased uplift. The calculated normal compaction trend (NCT) derived from the combination of the modified Athy equation and the porosity-velocity transform of Raiga-Clemenceau et al. (1988) is represented by the black dashed line. [Figure presented] Fig. 5. Vertical effective stress vs. shale velocity relationship from both normally pressured and overpressured wells. Vertical effective stress values have been derived from drill stem and production tests and wireline formation pressure tests and associated shale velocities are captured from sonic and VSP data from adjacent shale sequences. The dashed black curve represents the normal compaction trend (NCT) established for the Bavarian Foreland Molasse Basin. [Figure presented] Fig. 6. Shale velocities compiled from seismic (VSP) and sonic velocities vs. true vertical depth (TVD) for both normally pressured and overpressured Oligocene and Mesozoic (Cretaceous and Jurassic) shales. Velocities from overpressured Oligocene and Cretaceous shales clearly depart from the normal compaction trend around 2500 m, with some minor diversions even in shallower sections.},
author = {Drews, Michael and Bauer, Wolfgang and Caracciolo, Luca and Stollhofen, Harald},
doi = {10.1016/j.marpetgeo.2019.104102},
faupublication = {yes},
journal = {Marine and Petroleum Geology},
note = {CRIS-Team Scopus Importer:2019-12-03},
peerreviewed = {Yes},
title = {{Corrigendum} to “{Disequilibrium} compaction overpressure in shales of the {Bavarian} {Foreland} {Molasse} {Basin}: {Results} and geographical distribution from velocity-based analyses” [{Mar}. {Pet}. {Geol}. 92 (2018) 37–50]({S0264817218300618})(10.1016/j.marpetgeo.2018.02.017)},
year = {2019}
}
@inproceedings{faucris.123846624,
author = {Ma, Jingsheng and Drews, Michael and Kurtev, Kuncho and Aplin, Andrew},
booktitle = {International Petroleum Technology Conference 2013: Challenging Technology and Economic Limits to Meet the Global Energy Demand, IPTC 2013},
faupublication = {no},
isbn = {9781627481762},
pages = {4241-4244},
peerreviewed = {unknown},
title = {{Determination} of effective flow properties of caprocks in the presence of multi-scale heterogeneous flow elements},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883391071&origin=inward},
venue = {Beijing},
volume = {5},
year = {2013}
}
@inproceedings{faucris.123673044,
author = {Drews, Michael and Deckert, Hagen},
faupublication = {no},
isbn = {9781617829666},
pages = {5184-5188},
publisher = {Society of Petroleum Engineers},
title = {{Digital} outcrop models as input for geostatistical fracture networks simulations},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80052478304&origin=inward},
volume = {7},
year = {2011}
}
@article{faucris.106899364,
abstract = {Shale velocity data from sonic logs and vertical seismic profiles, drilling data and in situpressure measurements from a total of 116 wells have been analyzed to gain an improved understanding of the lateral and vertical distribution and formation of overpressure in the Bavarian Foreland Molasse Basin. Pore pressure from sonic and vertical seismic profile velocities has been analyzed by establishing a normal compaction trend for Cenozoic and Mesozoic shales combined with a classical Eaton approach. The study demonstrates that a single shale normal compaction trend for the Bavarian Foreland Molasse Basin is sufficient to estimate pore pressure and thus overpressure from sonic and vertical seismic profile velocity. Maximum overpressure develops at depths between 1500 and 2500 m and increases with depth at a constant effective stress of 20 MPa. The strong dependency of overpressure on burial depth, constant effective stress and restriction to shale units that are overlain by sequences with very high sedimentation rates indicates that disequilibrium compaction is the main cause for overpressure. Also, variable presence of Cretaceous shales is a key control of overpressure occurrence in Oligocene shales in the Bavarian Foreland Molasse Basin, since Cretaceous shales likely act as a “pressure buffer” to underpressured Mesozoic carbonates. Successful detection and prediction of overpressure from vertical seismic profile data is encouraging for future pre-drill prediction of overpressure from velocity data of seismic surveys in the Bavarian Foreland Molasse Basin, resulting in improved well planning, reliable calculation of project costs, and improved safety during drilling activities in the Bavarian Foreland Molasse Basin. The presented overpressure distributions will be a key input for future geomechanical, basin and reservoir modelling studies in the Bavarian Foreland Molasse Basin.},
author = {Drews, Michael and Bauer, Wolfgang and Caracciolo, Luca and Stollhofen, Harald},
doi = {10.1016/j.marpetgeo.2018.02.017},
faupublication = {yes},
journal = {Marine and Petroleum Geology},
keywords = {North Alpine Foreland Basin; Bavarian Foreland Molasse Basin; Overpressure; Pore pressure; Seismic velocity; Shale},
pages = {37-50},
peerreviewed = {Yes},
title = {{Disequilibrium} compaction overpressure in shales of the {Bavarian} {Foreland} {Molasse} {Basin}: {Results} and geographical distribution from velocity-based analyses},
volume = {92},
year = {2018}
}
@inproceedings{faucris.106152464,
author = {Drews, Michael and Kurtev, Kuncho and Böker, Ulf and Ma, Jingsheng and Aplin, Andrew and et al.},
author_hint = {Drews, M, Kurtev KD, Boeker U, Ma J, Aplin AC},
booktitle = {Geological Society Meeting: Modelling Sedimentary Basins and their Petroleum Systems},
faupublication = {no},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Enhancing} seal quality prediction by modelling spatial permeability distributions of meter-scale fine-grained sediments.},
year = {2010}
}
@inproceedings{faucris.110502304,
author = {Drews, Michael and Bauer, Wolfgang and Stollhofen, Harald},
booktitle = {Der Geothermie Kongress DGK 2017},
date = {2017-09-12/2017-09-14},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Feasibility} {Study} of {Future} ({Hypothetical}) {Scientific} and {Geothermal} {Wells} in {Franconia}, {Germany}.},
venue = {Munich},
year = {2017}
}
@inproceedings{faucris.200234606,
abstract = {Mit der Suche nach alternativen Energieformen steigt auch wieder das Interesse an der Nutzung der tiefen Erdwärme. Mehrere Geothermie-Anlagen im Molassebecken sind bereits in Betrieb, wobei die meisten davon die geklüfteten Malm-Karbonate als Ziel-Reservoir angebohrt haben. Für ein verbessertes Systemverständnis dieses Reservoirs werden häufig Analog-Aufschlüsse auf der Fränkischen Alb herangezogen, da die im Molassebecken versenkten Karbonate hier an der Oberfläche austreten. Jedoch ist es bei der Verwendung von Reservoir-Analogen von großer Bedeutung, welche Versenkungsgeschichte die jeweiligen Gesteine erfahren haben, denn dies kann einen entscheidenden Einfluss auf die petrophysikalischen Eigenschaften der Aufschlussanaloge haben. Die Versenkungsgeschichte wurde für die Fränkische Alb bisher kaum untersucht. Ziel der vorliegenden Studie ist es die Versenkungsgeschichte mit Hilfe verschiedener Untersuchungsmethoden an den den Malm unterliegenden Dogger- und Lias-Tonen zu bestimmen. Dazu werden Methoden wie die Vitrinit-Reflexion sowie der Vergleich von Kompaktionstrends aus Bohrungen aus dem Bayerischen Molassebecken und Literaturdaten herangezogen. Verwendet werden dafür sowohl Tone, welche aus aktiven und stillgelegten Tongruben entnommen wurden, als auch Lias- und Dogger-Tone aus flachen Bohrungen. Erste Analysen der Gruben-Tone weisen bei einem Vergleich der Kompaktionstrends mit Bohrdaten aus dem Molassebecken eine Versenkungstiefe von ca. 500-1000 m auf. Diese Tiefenangabe ist jedoch erst eine grobe Einschätzung der tatsächlichen erfahrenen Versenkungstiefe, ein Abgleich mit den beschriebenen Messmethoden wird im nächsten Projektschritt durchgeführt.