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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...
Methods for reducing unwanted noise (and increasing signal) in passive seismic surveys
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Tim Dean, Aidan Shem, Mus’ab Al Hasani
- Date Published: February 2018
Abstract:
Passive seismic surveys are becoming of increasing interest for characterising the near surface, in particular the depth of cover. For passive seismic acquisition ambient noise is both signal and noise. The ‘signal’ component is generally conside...
Marine Vibrator Concepts for Modern Seismic Challenges
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Andrew Long, Rune Tenghamn
- Date Published: February 2018
Abstract:
Aside from historical issues of mechanical durability and efficiency, the design of marine vibrators (MVs) for towed streamer operations are confronted by several practical challenges to their different possible applications: 1. Alternatives to conve...
ONSHORE INVENTORY – TARGETING NEW BASINS (OFFICER, PERTH, CANNING BASINS)
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Lidena Carr, Takehiko Hashimoto, Adam Bailey, Tehani Palu, Alfredo Chirinos, Paul Henson
- Date Published: February 2018
Abstract:
Following the 2016 publication of volume 1 of the Onshore Basin Inventory: the McArthur, South Nicholson, Georgina, Wiso, Amadeus, Warburton, Cooper and Galilee basins, central Australia (Carr et al, 2016); Geoscience Australia is continuing to provi...
Sedimentary Characteristics and Lithological Trap Identification of Distant Braided Delta Deposits: A Case on Upper Cretaceous Yogou Formation of Termit Basin, Niger
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: ZHAO Ning, HUANG Jiangqin
- Date Published: February 2018
Abstract:
Lithological trap identification in thin sand and thick shale layers is still a challenge for hydrocarbon exploration. Based on the highresolution sequence stratigraphy theory and the establishment of high resolution sequence stratigraphy framework w...
Canning Basin – Petroleum Systems Analysis
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Andrew Murray, Casey Edwards, David Long
- Date Published: February 2018
Abstract:
New high resolution geochemical information was acquired for fluids from recent Canning Basin wells and interpreted in context with previous work on fluid typing and correlation by Geoscience Australia (GA). Ungani field oils are interpreted to be de...
A method for assessing earth model uncertainty in the Taranaki Basin, New Zealand
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Edward Lewis, Tony Martin, Tony Bell, Dennis van der Burg, Lorenzo Russo
- Date Published: February 2018
Abstract:
As exploration moves into areas of increasing geological complexity and limited legacy data, reservoir evaluation is often based on the interpretation of one seismic image. Building a suitable velocity model followed by pre stack depth migration play...
Integrated Seismic (IS) for Shale Gas Exploration and Management
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Shastri L Nimmagadda, Paola Andrea Cardona Mora, Said Hanafy
- Date Published: February 2018
Abstract:
Seismic integration has been a successful accessory in every data interpretation project. For shale gas exploration design, development and implementation, high-resolution seismic data are necessitated. In this context, every exploration project need...
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 ...
New method for monitoring steam injection for Enhanced Oil Recovery (EOR) and for finding sources of geothermal heat
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Gordon Stove, Dr G. Colin Stove, Michael Robinson
- Date Published: February 2018
Abstract:
A database of over 10,000 wells with open hole logs, of which over 600 wells are dedicated surveillance wells with whole core, time lapse Carbon/Oxygen, Neutron, and Temperature data being used for evaluating Adrok’s deep penetrating radar system. ...
On the Geothermal Potential of the Heyuan Fault, South China
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Lisa Tannock, Klaus Regenauer-Lieb
- Date Published: February 2018
Abstract:
Geothermal energy potential in China is high, and although they currently lead the way in direct heat production, geothermal power generation is still low. Hot spring analysis and surface heat flux data indicate significant potential resources for th...
RESOURCE GROWTH THROUGH PETROLEUM EXPLORATION IN PNG
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Dr John Warburton, Jeremy Iwanec, Julianne Lamb, Dr Douglas Waples, Dr Keiran Wulff
- Date Published: February 2018
Abstract:
Mesozoic and Tertiary clastic and carbonate reservoirs are prolific producers of high quality liquid-rich gas onshore PNG. LNG projects are among the lowest cost and most profitable globally. Accordingly there has been a recent resurgence of petroleu...
COMPARING SHALE GOUGE RATIO AND JUXTAPOSITION ANALYSIS USING STOCHASTIC TRAP ANALYSIS: EXAMPLES FROM GIPPSLAND, TARANAKI, OTWAY AND SOUTHERN NORTH SEA BASINS
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Titus Murray, Dave Richards, Bill Power, Tony Johnson, Greg Christie
- Date Published: February 2018
Abstract:
Exploration fault seal analysis of prospects is often focused on generating a probability of success. This risking considers sealing hydrocarbons against faults over geological periods of time, rather than production time. Typically the risking is ba...
Geophysical and geological characterisation of dredge locations from RV Southern Surveyor voyage ss2012_v06 (ECOSATI): hotspot activity in northern Zealandia
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Maria Seton, Simon Williams, Nick Mortimer, Sebastien Meffre, Steven Micklethwaite, Sabin Zahirovic
- Date Published: February 2018
Abstract:
In October-November 2012 a geophysical mapping and dredging campaign in the eastern Coral Sea was conducted on the RV Southern Surveyor during voyage ss2012_v06 (ECOSATI). Part of this campaign was focussed in northernmost Zealandia where volcanic se...
THE USE OF CORING-INDUCED PETAL FRACTURES IN COAL TO SUPPLEMENT AND GROUND TRUTH THE INTERPRETATION OF IMAGE LOGS
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: David Titheridge, Saswata Mukherjee
- Date Published: February 2018
Abstract:
Resistivity and acoustic scanner image logs, in both the CSG and coal-mining industries, are the preferred means of determining azimuths of joints and cleat in coal. This paper indicates the need for care when interpreting cleat azimuths from image l...
LINEAR TRENDS OF PALEO-POCKMARKS AND FLUID FLOW PIPES IN THE JURASSIC AND TRIASSIC SEDIMENTS OF OFFSHORE NORTHWEST AUSTRALIA
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Tayallen Velayatham, Simon Holford, Mark Bunch
- Date Published: February 2018
Abstract:
This study records 315 paleo-pockmarks with associated focused fluid flow pipes within the Jurassic and Triassic sediments over three study areas on the Exmouth Plateau, offshore Northwest Australia. Paleo-pockmarks are identified along a surface tha...
Airborne Gravity Gradiometer Survey over the Pelarang Anticline, Onshore Kutai Basin, Indonesia
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Asbjorn Norlund Christensen, Cameron Jones, Leonhard Bow Kocijan, Hannah Booth, Seda Rouxel, Balakrishnan Kunjan
- Date Published: February 2018
Abstract:
The Pelarang Anticline is part of the NNE-SSW oriented Samarinda Anticlinorium, a detached thrust-and-fold belt in the Tertiary Kutai Basin. Results from an airborne gravity gradiometer survey over the Pelarang Anticline are presented herein. The Pel...
Ungani Oil Field, Canning Basin – Evaluation of a Dolomite Reservoir
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: David Long, Amy Millar, Stuart Weston, Lionel Esteban, Anne Forbes, Martin Kennedy
- Date Published: February 2018
Abstract:
Core supported study of the heterogeneous Ungani dolomite reservoir architecture is driving development drilling and upgrades to field resource estimates. Vuggy connected and macro non-connected pore space was directly measured over a 70m continuous ...