A live test of automated facies prediction at wells for CO2 storage projects

AbstractAt least 900 m of image log data have been interpreted in detail through the Late Cretaceous and Cenozoic succession intersected at two purpose-drilled injection wells of the CO2CRC Otway Project. Interpretations have been calibrated against core observations where possible. Natural clusters for the combined signature of a common suite of coincident well log data were determined using an unsupervised Naïve Bayesian classification algorithm called Autoclass. A deterministic relationship between these modelled clusters and interpreted image log facies provides a two-step facies prediction algorithm that can be applied using well log data acquired at other wells intersecting sedimentary successions prospective for CO2 storage.Earlier this year the Division of Resources & Energy, Department of Trade & Investment, of the Australian state of New South Wales drilled a new stratigraphic test well within the Pondie Range Trough of the Darling Basin. The new well, Mena Murtee-1, was drilled close to a 2D seismic tie line linking the Pondie Range Trough depocenter with an old petroleum exploration well, Pondie Range-1, that is sited on a flanking high. Analyses and interpretation of data acquired at Mena Murtee-1 is the latest step in reducing the uncertainty surrounding CO2 storage potential within the Darling Basin. Interpretation of core and image log data acquired at the new well has provided a means by which to test facies predictions made on the basis of the models developed within the Otway Basin

A live test of automated facies prediction at wells for CO(2) storage projects

At least 900 m of image log data have been interpreted in detail through the Late Cretaceous and Cenozoic succession intersected at two purpose-drilled injection wells of the CO2CRC Otway Project. Interpretations have been calibrated against core observations where possible. Natural clusters for the combined signature of a common suite of coincident well log data were determined using an unsupervised Naive Bayesian classification algorithm called Autoclass. A deterministic relationship between these modelled clusters and interpreted image log facies provides a two-step facies prediction algorithm that can be applied using well log data acquired at other wells intersecting sedimentary successions prospective for CO2 storage. Earlier this year the Division of Resources & Energy, Department of Trade & Investment, of the Australian state of New South Wales drilled a new stratigraphic test well within the Pondie Range Trough of the Darling Basin. The new well, Mena Murtee-1, was drilled close to a 2D seismic tie line linking the Pondie Range Trough depocenter with an old petroleum exploration well, Pondie Range-1, that is sited on a flanking high. Analyses and interpretation of data acquired at Mena Murtee-1 is the latest step in reducing the uncertainty surrounding CO2 storage potential within the Darling Basin. Interpretation of core and image log data acquired at the new well has provided a means by which to test facies predictions made on the basis of the models developed within the Otway Basin.Mark Bunc

IMPROVING THE METHOD OF OPEN-PIT LIGNITE DEPOSITS DEVELOPMENT IN UKRAINE

Subject of the research is open-pit mining concerning a full- field industrial development of a number of lignite deposits; feasibility study has been performed for them as for the efficient environmental friendly processing of coal and associated minerals. Objective of the research is to develop both methodology and conceptual approaches to high-productive, economically viable, and environmental friendly methods for open-pit lignite mining in the context of suprasalt depressive basins. Task of the research is to analyze the current state of lignite mining in Ukraine; to characterize a new genetic Ukrainian coal type from geological and industrial viewpoint; to substantiate parameters of lignite open-pit mining on the basis of Novo-Dmytrivka mining and industrial district; to expand the capacities of lignite mining on the basis of Novo-Dmytrivka, Bantysh, Stepkivka, and Bereka deposits; to substantiate the integrated use of diverse rock masses in the context of the national economy; to use lignite in terms of its power; to produce montan wax; to apply sodium humite in the context of agriculture; to use overburden rocks for the construction of bordering dams of powerful water storages; and to develop recommendations concerning the design of Novo-Dmytrivka mining and industrial system with the integrated development of lignite and associated minerals. Methods of the research are: analytical estimation of resources of lignite deposits; geological and engineering-technical analysis; and integrated and feasibility studies of indices of mining and opening operations. Optimization of the process solutions relies upon the analysis of changes in rock mass coefficient use within the open-pit area in the context of complete land reclamation of the disturbed land and the development of new productive land instead of the littered territories. The updated research method is to determine the basic technological parameters of equipment taking into consideration significant water inflow in terms of working areas as well as the inflows effect on the output of the lignite open pit depending upon changes in the depth of mine workings. The carried out research helped study more thoroughly the geological and engineering-technical features of lignite deposits in Ukraine. Their geological structures, coal-bearing capacity and the coal grades, total reserves, and their commercial significance have been determined. Parameters of benches and working sites have been substantiated. The parameters make it possible to decrease the current volume of overburden rock mining and to transfer their maximum values to the final stage of the open pit operation. Rational systems of mining and transportation equipment for the development of the open-pit field in terms of criteria of capacity, efficiency, and power consumption have been substantiated involving different traffic flows of rock mass movement in open pits and at the surface. There were issued recommendations to design the development of Novo-Dmytrivka lignite deposit. Relying upon the analyzed deposits of north-west Donbas, it is expedient to develop the unified coal-mining complex for the processing of lignite and associated minerals to be used by plants of building materials and structures as well as chemical and metallurgical plants as the basic raw material. There has been substantiated a possibility of commercial development of a number of lignite deposits in Ukraine to develop mining and preproduction complex with coal output at the level of 9-10 min t/y and 23-24 min t/y of coaly mass as well as their processing by thermal power station which capacity is 1800-2400 MW; a plant to produce 15 thousand tons of montan wax a year; briquetting factory which capacity is 2 min t/y; and a concrete product plant to manufacture building structures with a capacity of 1 min of m2/y

ERTS-1 imagery use in reconnaissance prospecting: Evaluation of commercial utility of ERTS-1 imagery in structural reconnaissance for minerals and petroleum

The author has identified the following significant results. This study was performed to investigate applications of ERTS-1 imagery in commercial reconnaissance for mineral and hydrocarbon resources. ERTS-1 imagery collected over five areas in North America (Montana; Colorado; New Mexico-West Texas; Superior Province, Canada; and North Slope, Alaska) has been analyzed for data content including linears, lineaments, and curvilinear anomalies. Locations of these features were mapped and compared with known locations of mineral and hydrocarbon accumulations. Results were analyzed in the context of a simple-shear, block-coupling model. Data analyses have resulted in detection of new lineaments, some of which may be continental in extent, detection of many curvilinear patterns not generally seen on aerial photos, strong evidence of continental regmatic fracture patterns, and realization that geological features can be explained in terms of a simple-shear, block-coupling model. The conculsions are that ERTS-1 imagery is of great value in photogeologic/geomorphic interpretations of regional features, and the simple-shear, block-coupling model provides a means of relating data from ERTS imagery to structures that have controlled emplacement of ore deposits and hydrocarbon accumulations, thus providing a basis for a new approach for reconnaissance for mineral, uranium, gas, and oil deposits and structures

Potential geothermal resources of Texas

UT Librarie

Ontology based data warehousing for mining of heterogeneous and multidimensional data sources

Heterogeneous and multidimensional big-data sources are virtually prevalent in all business environments. System and data analysts are unable to fast-track and access big-data sources. A robust and versatile data warehousing system is developed, integrating domain ontologies from multidimensional data sources. For example, petroleum digital ecosystems and digital oil field solutions, derived from big-data petroleum (information) systems, are in increasing demand in multibillion dollar resource businesses worldwide. This work is recognized by Industrial Electronic Society of IEEE and appeared in more than 50 international conference proceedings and journals

Geothermal Explorations on the Slate Formation of Taiwan

Currently, over 90% operated geothermal power plants are distributed in the volcanic- or magmatic intrusion-related geological systems. Only a few cases are done in metamorphic terranes, especially on the slate formation. Taiwan is located at the ring of fire and is famous for the young orogenic belt, which has wide distributions of rapid uplifting terranes with few active volcanoes. The metamorphic rocks, for example, schist and slate formations with high geothermal gradients, are occurring in the major mountain range. This chapter introduces the techniques or methods we used for geothermal exploration in the slate formation of the Chingshui geothermal field of Taiwan, where a 3-MW pilot geothermal power plant had been installed in 1983 and operated for 12 years

Oil and gas development and employment in Arctic communities: the case of Alberta and Finnmark

Master in Social Science - Nord universitet 201