Hydrocarbon potential of Eastern View Group Reservoir Rocks, Bass Basin, Australia.

Hydrocarbon exploration to-date in the Bass Basin has focused on Eocene reservoir rocks of the Upper Eastern View Group with limited success. This thesis focuses on the hydrocarbon potential of Middle and Lower Eastern View Group reservoir rocks which the results of this thesis suggest are closer and better connected to mature source rocks in the basin. This thesis employs several basin analysis techniques, particularly 3D basin modelling, to investigate the hydrocarbon charge history of the Bass Basin. Sixteen 2D surveys providing ~20,000 km of reflection seismic data were interpreted in order to understand the structural setting of the Bass Basin and to constrain its morphology for input into 2D and 3D basin models. The seismic interpretation resulted in recognising a rotation in stress directions from the Early Eocene to the Late Eocene, which was associated with the creation of a new set of faults during the deposition of the Upper Eastern View Group and the Demons Bluff Formation. These faults are interpreted to have reactivated during the Miocene, with reactivation leading to hydrocarbon breach in accumulations within the northeastern part of the Bass Basin. Key horizons and faults interpreted from seismic data were depthconverted and input into PetroMod software for basin modelling. Reservoirs of the Upper Eastern View Group demonstrate an average core porosity of 26% and an average permeability of ~200 mD. Thicker sand bodies in the Middle EVG exhibit an average log-derived porosity of 20%, even at depths greater than 3000 m. It is interpreted that these porosities are maintained at relatively great burial depth due to the occurrence of coarser-grained sands within lower sections of finingupward sedimentary cycles. Coarser-grained sands have resisted compaction and cementation due to their grain texture and have preserved better intergranular porosity and reservoir quality. The Demons Bluff Formation, is the regional seal overlying the Eastern View Group, and was analysed and found to have excellent sealing capacity. Some samples were interpreted to be capable of supporting in excess of 2 km oil column height. The potential source rocks of the Bass Basin are interbedded coals and shales deposited mainly in freshwater lakes. Coaly source rocks of the Narimba (Early Eocene), Tilana (Palaeocene) and Furneaux (Maastrichtian) sequences are the key potential source rocks. The Otway Megasequence (Early Cretaceous) may also contain potential source rocks. Geochemical analysis suggests a Type II-III source rock for potential source rocks of the Early Eocene. Activation energy and kinetic reactions for source rocks of this age were modelled according to the results of geochemical analysis, while Palaeocene and other older source rocks were modelled as Type III source rocks to signify their terrestrial nature. 2D and 3D hydrocarbon generation models constructed for the Bass Basin suggest oil-prone source rocks of the Middle Eocene succession are immature and Early Eocene source rocks are partially mature for hydrocarbon expulsion. Source rocks of the Palaeocene and older are mature for hydrocarbon expulsion and have generated the majority of the gaseous hydrocarbons in the basin. This thesis has highlighted the significance of fault conductivity in controlling the distribution of hydrocarbons within the Bass Basin. Migration modelling suggests faults were impermeable during the Late Palaeocene when hydrocarbon expulsion from the Early Cretaceous source rocks commenced. Impermeable faults, together with intraformational seals within the Lower and Middle Eastern View Group largely prevented vertical hydrocarbon migration into the Upper Eastern View Group. In the central and northeastern parts of the basin, the Upper Eastern View Group reservoirs were charged by Early Eocene source rocks, which commenced expulsion during the Pliocene. Fault reactivation during the Miocene may have resulted in breaching some deeper accumulations within reservoir sands of the Narimba and Tilana sequences and migration into reservoir sands of the Upper Eastern View Group. Basin models predict trapped hydrocarbons within reservoirs of the Middle Eastern View Group where mature source rocks exist, while the majority of the Upper Eastern View Group reservoirs under the regional seal were left without hydrocarbon charge. Deeper troughs such as the Yolla, Cormorant and Pelican troughs in the Cape Wickham Sub-basin (western part of the Bass Basin) are predicted to have the most accumulations in the basin. Few accumulations are predicted in the Durroon Sub-basin (eastern part of the Bass Basin). The basin models suggest several new and untested plays within the Bass Basin which may increase its prospectivity, notably by implementing a new exploration strategy targeting quality reservoirs of the Middle Eastern View Group. Regional assessment and modelling of the carbon dioxide (CO₂) storage potential of the Bass Basin was also undertaken and suggests the basin has the potential to provide excellent CO₂ storage. Since many reservoirs of the Upper Eastern View Group have not received hydrocarbon charge, CO₂ storage in these reservoirs will not interfere with hydrocarbon exploration.Thesis (Ph.D.) -- University of Adelaide, Australian School of Petroleum, 201

Upheavals to scholarly communication have not embraced Robert Merton’s normative guide to good scientific research.

An impact-driven scholarly communication system may offer new levels of views for research and new metrics to assess these works, but are the upheavals actually reinforcing the cumulative advantage of those already in power? Drawing on Robert Merton’s norms for the production of science, Avtar Natt reframes current scholarly developments and finds the roots are too deep for a fair and equal system of knowledge production

Implementering av jämställdhetsarbete på kommunal nivå - En komparativ studie om genomförandet av gender budgeting i Göteborgs stad

This study focuses on the implementation of gender budgeting, which is about highlighting the resource allocation between women and men behind a budget, in public organizations. More specific the study focuses on how the implementation of gender budgeting works in Gothenburg city in two administrations areas. The reason why we have chosen to study the work of gender budgeting on a local level is mainly because it is not legislated in Sweden. Nevertheless some cities have decided to adopt gender budgeting as a political goal. One of these cities is Gothenburg. According to a few civil servants in Gothenburg that actively works with gender budgeting, many of the administrations in the city is facing a huge challenge with the implementation of gender analysis, which is a significant part of the gender budgeting goal. With the background of Mazmanian and Sabatiers theory of six steps that are necessary for a full implementation in organizations that are vertically controlled, the aim is to observe how well impleented gender budgeting are in these two chosen administrations areas. Furthermore, we want to identify if the main challenges that these administrations areas are facing is the lack of gender analysis. We also want to find out more on a general basis what the main concerns are with the implementation of gender budgeting in the administration.The result reveals that both administrations areas are lacking in the work with gender analysis. It also reveals that one of the administrations areas also has difficulties with the groundwork of finding gender statistics. We can thus draw the conclusion that the six steps in Mazmanian and Sabatiers theory are not fulfilled. One of the ground causes for the deficient implementation is due to the lack of research and education. To make this implementation work, one important condition is to realize that it is important with different methods depending on the administration area. In the current situation there is no working method which is applicable in all administration areas in Gothenburg

Применение полномостового резонансного инвертора для ремонта специальной техники в полевых условиях

Определено, что при проведении ремонтов автотранспортной и специальной техники вдали от стационарных баз наиболее энергоемкими и трудозатратными являются сварочные работы. На основании проведенного исследования была предложена инновационная конструкция сварочного инвертора, использующего эффект резонанса, обладающая повышенной надежностью, недорогого конструктивного исполнения (в условиях серийного производства). С целью повышения надежности и удешевления предлагаемой конструкции инвертора предложен целый ряд новых подходов. Исследуется инверторный полномостовой источник сварочного тока с реализацией резонансного эффекта, обладающий стабильностью и плавностью работы, высокой надежностью, потому что схема данного преобразователя не чувствительна к перепадам питающего напряжения

The methodology used for the Times Higher Education World University Rankings’ citations metric can distort benchmarking

LSE Impact Blog The Times Higher Education World University Rankings can influence an institution’s reputation and even its future revenues. However, Avtar Natt argues that the methodology used to calculate its citation metrics can have the effect of distorting benchmarking exercises. The fractional counting approach applied to only a select number of papers with high author numbers has led to a situation whereby the methodologists have unintentionally discriminated against certain types of big science paper. This raises questions about the benchmarking and also reiterates the importance of such rankings maintaining transparency in their data and methods

The methodology used for the Times Higher Education World University Rankings’ citations metric can distort benchmarking

LSE Impact Blog The Times Higher Education World University Rankings can influence an institution’s reputation and even its future revenues. However, Avtar Natt argues that the methodology used to calculate its citation metrics can have the effect of distorting benchmarking exercises. The fractional counting approach applied to only a select number of papers with high author numbers has led to a situation whereby the methodologists have unintentionally discriminated against certain types of big science paper. This raises questions about the benchmarking and also reiterates the importance of such rankings maintaining transparency in their data and methods

mRNA fusion constructs serve in a general cell‐based assay to profile oligonucleotide activity

A cellular assay has been developed to allow measurement of the inhibitory activity of large numbers of oligonucleotides at the protein level. The assay is centred on an mRNA fusion transcript construct comprising of a full‐length reporter gene with a target region of interest inserted into the 3′‐untranslated region. Luciferase and fluorescent reporter genes were used in the constructs. The insert can be from multiple sources (uncharacterised ESTs, partial or full‐length genes, genes from alternate species, etc.). Large numbers of oligonucleotides were screened for antisense activity against a number of such constructs bearing different reporters, in different cell lines and the inhibitory profiles obtained were compared with those observed through screening the oligonucleotides against the corresponding endogenous genes assayed at the mRNA level. A high degree of similarity in the profiles was obtained indicating that the fusion constructs are suitable surrogates for the endogenous messages for characterisation of antisense oligonucleotides (ASOs). Furthermore, the results support the hypothesis that the secondary structure of mRNAs are divided into domains, the nature of which is determined by primary nucleotide sequence. Oligonucleotides whose activity is dependent on the local structure of their target mRNAs (e.g. ASOs, short interfering RNAs) can be characterised via such fusion RNA construct