Carbon dioxide (CO2 ) geological storage potential of the Bass Basin

AbstractEvaluation of the Bass Basin’s suitability for CO2 storage has been undertaken by analysing several key basin analysis elements, including seal capacity and integrity, reservoir quality, petroleum systems modelling and CO2 migration and storage modelling.Seal geometry, capacity and integrity of the Demons Bluff Formation has been investigated to evaluate CO2 containment in the basin. The study revealed good to excellent sealing capacity for the Demons Bluff Formation and for the intraformational seals within the Eastern View Group (EVG). Faults traversing the reservoir/regional seal boundary, as well as faults intersecting the top of the regional seal were evaluated for future risk of reactivation. There is some risk of reactivation associated with N-E striking faults, fortunately these faults are mostly confined to the margins of the basin.Reservoirs of the Upper EVG generally have high porosity and permeability. Hydrocarbon migration and accumulation in the basin were simulated, to examine the petroleum potential of specific reservoirs within the basin. Migration models suggest most of the trapped hydrocarbons occur in the reservoir sands of the Middle EVG. Reservoirs of the Upper EVG were have received little hydrocarbon charge, except for the northeastern part of the basin.CO2 migration paths within reservoirs of the Upper EVG were simulated based on a buoyancy driven migration model. Migration pathways within the Upper EVG and CO2 accumulations under the regional seal were identified. In addition, total available pore volumes for CO2 storage associated with structural traps was calculated at >2 billionm3

Methods to Isolate Possible Bacteriophage for Micrococcus Luteus and Acinetobacter Baumannii

The increasing prevalence of antibiotic-resistant strains of bacteria has led to a crisis in treatment options. Acinetobacter baumannii is an example of a bacterium that has developed a dangerous level of multidrug resistance. Not only does it have genes allowing for the resistance to antibiotics, but it also produces a biofilm that protects it. In recent years, A. baumannii has become a major contributor to nosocomial infections making it critical to develop new treatment methods. Micrococcus luteus, while typically not thought of as a pathogen, is also developing a resistance to antibiotics. M. luteus is capable of forming a biofilm on its own making it worrisome as it has increasingly been noted as an opportunistic pathogen. One potential new treatment of antibiotic resistance is the development of bacteriophage therapy, using bacterial viruses to target the infection and treat it. This study examines methods for isolating novel bacteriophage from dairy cattle feces, specifically for the biofilm producers A. baumannii and M. luteus

Captive rearing of larvae of the Dublin Bay prawn Nephrops norvegicus (L)

Wild caught Nephrops larvae were maintained in aquaria for as long as possible, in 1969, 1970 and 1971 together with a few which were hatched in the laboratory in 1971. Experiments were conducted at temperature ranges of 16°0 to 22°C and 11°C to 13 °C; the latter range is close to the ambient temperature of larvae in the sea. Direct observations, were obtained of the duration of all stages from first larval to third post larval (six successive stages in all), though percentage survival rates were rather low in some groups

Some Problems and Methods in Dublin Bay Prawn (Nephrops norvegicus) Research

Much is in the process of being learned about the Dublin Bay Prawn or Norway Lobster Nephrops norvegicus (referred to simply as the prawn hereafter) but compared with many other commercially fished species much still remains a mystery. This paper describes methods of examination of its biology and ecology designed to yield information on habits, movements and especially growth and death-rates, these being the two most important factors in the prosperity of the fishery

Field Observations on Larvae of the Dublin Bay Prawn Nephrops norvegicus (L.) in the Western Irish Sea

The occurrence of Nephrops norvegicus larvae in the western Irish Sea determined by survey cruises during 1969, 1970 and 1971 showed distribution patterns of the Irish coastal population which appeared to be, to some extent, separated from others adjacent (e.g. S.W. Manx), Vertical distribution showed the greatest numbers at 10-15 fm depth by day, ascending by approximately 5 fm around dusk; numbers deeper than 20 fm were very small except late in the season when they increased greatly. Differences between the Irish Sea and Faeroe, north~eastem English and Adriatic waters in larval season and rate of development were also found

The Whiting Fishery Off Counties Dublin and Louth On the East Coast of Ireland

The whiting Merlangius merlangus (L) has for over 30 years been the leading demersal species by weight in the landings of commercial fisheries on the east coast of Ireland. The present study was commenced in the autumn of 1959, using samples of both the commercial fishery and the research vessel Cú Feasa. The present paper describes the commercial catch from port samples supplemented with research vessel material where extra detail is desirable

A diving study on Dublin Bay prawns Nephrops norvegicus (L) and their burrows off the east coast of Ireland

During 1971 a team of divers studied the structure and numbers of entrances of burrows of Nephrops norvegicus in the Irish Sea off Clogherhead and counted their numbers in plots of 28sq.m area. Numbers of entrances found ranged from one to six with a peak at 3 and the densities of Nephrops norvegicus found ranged from 1 per 2.5sq.m downwards

Contemporary stress orientations in the Faroe-Shetland region

The Faroe-Shetland Region (FSR) of the NE Atlantic continental margin contains a number of complexly structured Mesozoic-Palaeogene-age rift basins, but in comparison to the contiguous British Isles and North Sea Basin, the state of crustal stress in the FSR is poorly understood. The orientation of maximum horizontal compressional stress (σHmax) across most of NW Europe is ~NW-SE, which is considered to be controlled by forces acting at the plate boundaries. We have determined 16 B-D quality σHmax orientations based on borehole breakouts interpreted in petroleum wells, and define three distinct stress provinces within the FSR. Stress orientations in the NE are ~NW-SE, consistent with the regional pattern of stresses in NW Europe and local neotectonic structural trends. However, contemporary stress orientations in the central and SW of the FSR exhibit short-wavelength (distances <10-50 km) variation, with NE-SW, N-S and E-W orientations that are parallel or sub-parallel to underlying structural trends. This variation is interpreted in terms of stress deflections towards weak faults that downthrow the Mesozoic-Cenozoic sedimentary successions against basement highs. These local-scale sources are superposed on a background ~WNW-ESE σHmax orientation that is controlled by both plate boundary forces and regional-scale sources of stresses