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New insights into the offshore Canning Basin using a seamless onshore/offshore stratigraphic model
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Christopher Yule*, James Daniell
- Date Published: September 2019
Abstract:
The Canning Basin in Western Australia is classified as a frontier basin. Of the 345 wells drilled onshore, only eight have intercepted small commercial hydrocarbon deposits. The offshore Canning Basin is one of the world’s most underexplored Paleo...
Electromagnetic and electrical methods applied to mapping coked coal – A case study from the Bowen Basin, Eastern Australia
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Jonathan Lowe*, James Reid, Eric Battig, Scott Napier, Dan Eremenco
- Date Published: September 2019
Abstract:
In coal mining it is important to know if localised areas of coal have been rendered worthless through direct contact with volcanic intrusions. To avoid dilution, accurate coked coal boundaries are traditionally mapped by drilling....
Pyxis – A study in cost-efficient near-field exploration, discovery and appraisal
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Megan Slade, Peter Thomas
- Date Published: September 2019
Abstract:
Realising and protecting the value of near-field exploration and appraisal is a constant challenge, especially during the recent low oil price cycles. This paper discusses the 2015 Pyxis gas discovery, and the means by which a cost-effective and valu...
Refraction tomography at the Nova Ni-Cu mine
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Ian James, Graeme Hird, Andrew Fitzpatrick
- Date Published: September 2019
Abstract:
The mining industry is increasingly using 3D seismic reflection datasets, from project genesis through to mature mine sites. During processing of the reflection data, the refracted arrival is digitised and used to correct for near-surface velocity va...
Discovering and using geophysical data in the 21st century
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Alex Ip*, Andrew Turner, Yvette Poudjom-Djomani, Ross C. Brodie, Phillip Wynne, Kelsey Druken, Neil Symington, Carina Kemp
- Date Published: September 2019
Abstract:
Large geophysical data has traditionally been difficult to manage in a consistent, open, and efficient manner. The demands of modern, large-scale computing techniques, coupled with the need for sound data and metadata management, mean that establishe...
Recent advances in nodal land seismic acquisition systems
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Tim Dean*, Denis Sweeney
- Date Published: September 2019
Abstract:
Early on in the history of seismic acquisition the advantages of being able to acquire data without the impediment of cables was identified. Despite the introduction of numerous systems since the 1970s nodal land acquisition systems have only relativ...
Structural and lithological controls on the geometry and morphology of igneous intrusions: a 3D seismic case study from the Exmouth sub-basin, NW Shelf
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Niall Mark, Simon Holford*, Nick Schofield, Christian Eide, Stefano Pugliese, Douglas Watson, David Muirhead
- Date Published: September 2019
Abstract:
Rift-related magmatism resulting in widespread igneous intrusions has been documented in various basins, including the Faroe Shetland Basin (UK), Voring and Møre Basins (Norway) and the Browse and Carnarvon basins of the NW Shelf of Australia. Seism...
Impact of artificially matured organic matter on the dielectric and elastic properties of compacted shales
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Matthieu Cauchefert, Matthew Josh, Lionel Esteban, Stephanie Vialle, Maxim Lebedev, Jeremie Dautriat, Joel Sarout, Bruce Maney
- Date Published: February 2018
Abstract:
Unconventional gas shale resources recently became a standard in the American oil and gas industry and are studied throughout the world. However Gas shales are still poorly characterised with respect to other reservoir rock types. The organic matter ...
STROMATOLITE CONSTRUCTION, BIOFACIES AND BIOMARKERS IN THE LOWER CAMBRIAN HAWKER GROUP, ARROWIE BASIN, SOUTH AUSTRALIA
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Bronwyn L. Teece, Simon C. George, Glenn A. Brock
- Date Published: February 2018
Abstract:
Stromatolites are laminated microbial deposits, normally composed of accretionary layers of cyanobacteria and other (often anoxic) bacteria which form on the sediment-water interface. Stromatolites represent one of the earliest records of life on Ear...
COULD THE MESOPROTEROZOIC KYALLA FORMATION EMERGE AS A VIABLE GAS CONDENSATE SOURCE ROCK RESERVOR PLAY IN THE BEETALOO SUB-BASIN?
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Carl Altmann, Elizabeth Baruch, David Close, Mohinudeen Faiz, Brenton Richards, Alexander Cote
- Date Published: February 2018
Abstract:
Reservoir and geomechanical analysis of Kyalla Formation core and wireline logs acquired at Beetaloo W-1 indicate the presence of two potential Source Rock Reservoir (SRR) intervals; the middle Kyalla SRR and the lower Kyalla SRR. The key properties ...
Integrating geophysical monitoring data into multiphase fluid flow reservoir simulation
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Trevor P. Irons, Brian J.O.L. McPhserson, Nathan Moodie, Rich Krahenbuhl, Yaoguo Li
- Date Published: February 2018
Abstract:
Simulation of multiphase flow systems are of critical importance in managing hydrological systems. Flow simulations are affected by a number of factors including structure and flow properties including porosity and permeability as well as the anisotr...
Quantitative Interpretation: Use of Seismic Inversion Data to Directly Estimate Hydrocarbon Reserves and Resources
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: James Shadlow, Adam Craig, David Christiansen, Robert Mitchell
- Date Published: February 2018
Abstract:
A quantitative interpretation workflow utilising AVO inversion based lithology prediction data was developed to directly assess reserves and resources for an LNG development project in the Carnarvon Basin. The study area is covered by modern MAZ PSDM...
FIBRE-OPTIC VSPS: BOREHOLE SEISMIC REVOLUTION IN AUSTRALIA
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Dr. Konstantin Galybin, Tsunehisa Kimura, Fargana Exton
- Date Published: February 2018
Abstract:
The borehole seismic industry is undergoing a quantum leap in the acquisition technology. The standard borehole seismic imaging tools such as accelerometers and geophones are now being replaced by the fibre-optic (FO) acquisition for basic surveys su...
3D VERTICAL SEISMIC PROFILING ACQUIRED USING FIBREOPTIC SENSING DAS – RESULTS FROM THE CO2CRC OTWAY PROJECT
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Julia Correa, Barry Freifeld, Michelle Robertson, Roman Pevzner, Andrej Bona, Dmitry Popik, Konstantin Tertyshnikov, Thomas Daley
- Date Published: February 2018
Abstract:
Distributed Acoustic Sensing (DAS) is an optical interferometric method for acquisition of acoustic and seismic signals. It uses laser pulses that travel along the length of a fibre-optic cable and backscatter as they encounter small inconsistencies ...
The influence of reverse-reactivated normal faults on porosity and permeability in sandstones: a case study at Castle Cove, Otway Basin
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Natalie Debenham, Natalie J. C. Farrell, Simon P. Holford, Rosalind C. King, David Healy
- Date Published: February 2018
Abstract:
An understanding of fault zone structure and transmissibility can have significant implications for reservoir appraisal and development within petroleum systems. Studies tend to focus on low porosity host rocks that have experienced simple tectonic h...
Reservoir Modelling, Structural History and Volumetrics of the Jerboa Area, Eyre Sub-Basin
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Jordan McGlew, Prof. Gregory Smith
- Date Published: February 2018
Abstract:
The Eyre Sub-basin is situated in the Bight Basin in the Southern Margin. It covers an area of approximately 8,000km2. It is one of several half-graben in the Bight Basin that formed during the initial rifting between Australia and Antarctica. Sedime...
Isotope Constraints on Intra-Basin Correlation and Depositional Settings of the Mid-Proterozoic Carbonates and Organic-Rich Shales in the Greater McArthur Basin, Northern Territory, Australia
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Juraj Farkas, Maxwell Bullen, Grant Cox, Alan Collins, William Giuliano, Sandra Menpes, Juergen Gusterhuber, Belinda Smith
- Date Published: February 2018
Abstract:
The Greater McArthur Basin in northern Australia forms the world’s oldest potential unconventional gas play. It comprises Paleo- to Mid-Proterozoic sedimentary successions (i.e., the McArthur and Limbunya Groups) dominated by carbonate rocks (i.e.,...
Solid substitution: theory versus experiment
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Yongyang Sun, Maxim Lebedev, Vassili Mikhaltsevitch, Stanislav Glubokovskikh, Stefan Iglauer, Boris Gurevich
- Date Published: February 2018
Abstract:
Gassmann fluid substitution is widely used in geophysical practice. In the last few years, the topic of fluid/solid substitution has emerged, where the substances filling the pore space can be solids, fluids, or visco-elastic materials, such as heavy...
Portable X-ray diffraction for unconventional and conventional petroleum exploration
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Dane Burkett
- Date Published: February 2018
Abstract:
X-ray diffraction (XRD) is a well-established technique in the earth sciences as it can be used to identify and quantify minerals and is particularly useful for fine-grained sedimentary rocks. Due to the capital cost, environmental requirements and s...
Geochemistry of storing CO2 and NOx in the deep Precipice Sandstone
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: J. K. Pearce, D. Kirste, G.K.W. Dawson, I. Altaf, S.D. Golding, J. Undershultz
- Date Published: February 2018
Abstract:
The Precipice Sandstone in the Surat Basin is being appraised for CO2 geological storage owing to its high porosity and permeability and expected high injectivity. Generally it is quartz rich with variable kaolinite, however detailed characterisation...
Ranking DHI attributes for effective prospect risk assessment applied to the Otway Basin, Australia
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Sebastian Nixon, Tony Hallam, Andrew Constantine
- Date Published: February 2018
Abstract:
The first evidence of seismic brightening linked with gas charged reservoirs was recognised by Shell in the very late 1960s in the Gulf of Mexico. Since that time the terms bright spots, flat spots, amplitude versus offset (AVO) anomalies or gas anom...
Broadband Least-Squares Wave-Equation Migration
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Shaoping Lu, Alejandro Valenciano, Nizar Chemingui, Andrew Long
- Date Published: February 2018
Abstract:
We introduce an effective iterative Least-Squares Wave-Equation Migration (LS-WEM) solution for broadband imaging. LeastSquares Migration (LSM) solutions are designed to produce images of the subsurface corrected for wavefield distortions caused by a...
TERTIARY DEEP-WATER CORAL SUPPORTS COLD SEEPS IN THE CEDUNA SUB-BASIN
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Laurent Langhi, Julian Strand, Andy Ross, Karen Gowlett-Holmes, Emanuelle Frery, April Pickard
- Date Published: February 2018
Abstract:
The analysis of new 3D seismic and the acquisition of unique core data enables an in-depth interpretation of outboard Eocene mounds in the central Ceduna Sub-basin and a more accurate model of their origin. ...
Least Square Q-Kirchhoff Migration: Implementation and Application
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Xiaodong Wu, Yi Xie, Joe Zhou, Dechun Lin, Yu Wang
- Date Published: February 2018
Abstract:
Absorption effects caused by the anelastic nature of the earth lead to the attenuation of amplitude and distortion of phase of seismic waves. The so-called quality factor “Q” accounting for this absorption effect has to be included for correct im...
Rock-physics based time-lapse inversion in Delivery4D: synthetic feasibility study for CO2CRC Otway Project
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Stanislav Glubokokvskikh, Roman Pevzner, Dmitry Popik, Christian Proud, James Gunning, Tess Dance
- Date Published: February 2018
Abstract:
Conventional approach to 4D seismic inversion consists of parallel inversions applied to seismic vintages. Only then, the inverted changes of seismic attributes are converted into petrophysical properties using rock physics. The paper develops a robu...
FEASIBILITY OF SEISMIC MONITORING OF CCS IN PERTH BASIN
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Stanislav Glubokovskikh, Andrej Bona, Roman Pevzner, Anton Egorov, Ludovic Ricard
- Date Published: February 2018
Abstract:
This work studies seismic response of injection of super-critical CO2 in Perth Basin, WA for the purpose of CO2 sequestration. We aim to propose the most suitable way of monitoring and verification of such storage. To this end, we generated synthetic...
CA-IDTIMS and biostratigraphy: Their impact on exploration
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: John Laurie, Tegan Smith, Simon Bodorkos, Bob Nicoll, Jim Crowley, Dan Mantle, Geoff Wood
- Date Published: February 2018
Abstract:
Uranium-Lead dating of Zircon using the Chemical Abrasion-Isotope Dilution Thermal Ionisation Mass Spectrometry (CA-IDTIMS) technique has largely overcome the problem of radiogenic lead loss, and has greatly improved the precision of the dating. That...
EVOLVING EXPLORATION METHODS IN THE HYDROCARBON PLAY WITHIN THE PATCHAWARRA FORMATION ON THE WESTERN FLANK, COOPER BASIN
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Johann Soares, Christopher Webb
- Date Published: February 2018
Abstract:
The hydrocarbon play in the Patchawarra Formation lies within a Permian age, high latitude, fluvial sand and coal measure system that is up to 300m thick in the Cooper Basin of Central Australia. Fluvial channel belt sands, ranging from 1 to 20m thic...
Regional migration and trapping frameworks in the frontier ceduna sub-basin: new insights from stratigraphic forward modelling and ‘triangle juxtaposition’ diagrams
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Laurent Langhi, Julian Strand, Andrew Ross, Emanuelle Frery
- Date Published: February 2018
Abstract:
In the Ceduna Sub-basin oil-prone source rocks, reservoirs and seals are predicted in Late Cretaceous Turonian through Santonian (Tiger) and Campanian through Maastrichtian (Hammerhead) marine and deltaic Supersequences (Totterdell et al, 2000). Desp...
Modelling complex near-surface features to improve shallow seismic exploration
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Shaun Strong
- Date Published: February 2018
Abstract:
Land seismic exploration is often limited or impacted by complex structures in the near surface. These can include large variations in velocities related to weathering (low velocity) or basalts (potentially high velocity).
In this paper we use fin...