The Asia Pacific Region (APR) video library includes a collection of recordings from virtual events, including the Visiting Geoscientist series. Videos are available for viewing on demand.

Presented by David McNamara, University of Liverpool A 60-90 minute talk on 'Fractured geothermal systems: Processes enabling and hindering fluid flow'. Summary: Many geothermal systems are hosted within rocks where permeability is predominantly controlled by open structural networks. On the flip-side, fracture, if sealed with mineral material following fluid-rock interactions, can also form fluid flow baffles in geothermal systems. Characterisation of these structural networks and how they evolve is critical if we are to understand how they facilitate geothermal fluid circulation through the crust and improve well targeting and field planning. Doing this requires the adaptation of a range of existing analytical and sub-surface characterisation techniques, including borehole imaging, and mineral microanalysis. This talk will explore the use of these techniques to geothermal systems, highlighting where it has brought new insights to this sector.
Presented by Latinas in Earth and Planetary Sciences A 60-90 minute free webinar presented by Latinas in Earth and Planetary Sciences on 'GeoLatinas Beyond Borders: Multidisciplinary and Multiscale Careers in Industry and Academia'. Abstract: The under-representation of women in science and engineering is a reality and, although recent efforts have been made, gender balance has not yet been achieved. Moreover, this problem is exacerbated in the case of women of mixed heritage or from developing countries, who are rarely represented in leadership positions in academia and industry. GeoLatinas leaders from around the world and representing a wide range of disciplines, have overcome barriers such as stereotypes, prejudice and discrimination to belong to and thrive in the geosciences. We will showcase a range of technical profiles, highlighting a variety of data sources, temporal and spatial scales, objectives, workflows and the impact of each discipline on academia, industry and our communities. We work with and integrate data at various spatial and temporal scales to investigate the earth, explore and produce resources, and solve industry challenges. Integrating data from all scales is relevant for executing research ideas and informed business decisions. From crustal deformation analysis, sedimentary basin evolution, to reservoir and fluid characterization, in this team presentation we will illustrate the value of multiscale data integration and workflows that leverage successful research and multidisciplinary projects in industry.
Pesented by Dr. Yong Li, China University of Mining and Technology The Ordos Basin, China's second-largest sedimentary basin, boasts widespread resources in an area of 370, 000km2. It contributes most to the reserves of natural gas, coalbed methane (CBM), and coal already proven in China, accounting for nearly 6%, 13%, and 20%, respectively. Ordos Basin contains about 11 trillion m3 natural gas and 19 trillion m3 CBM. Upper Paleozoic sequence is an independent petroleum system separated from the Mesozoic and the lower Paleozoic strata. In this petroleum system, the source rocks are widely distributed coals and dark mudstones occurring in the Carboniferous–lower Permian coal measures. Continuous hydrocarbon accumulation units were identified within the Upper Paleozoic, including the Permian Taiyuan, Shanxi and Xiashihezi formations with great tight gas potential, and the Taiyuan and Shanxi formations also containing shale gas and coalbed methane. To clearly know the super gas bearing section, a few main questions require answers: (1) the capability of gas supplement from shale, and if there is development potential of the widely deposited transitional shales; (2) the temporal and spatial evolution of hydrocarbon accumulations in the vast area (500 km length); and (3) the accumulation mechanism of different types of natural gases, and if there is any favorable strata combinations.
Presented by Dr. Luca Guglielmetti, University of Geneva A 60-90 minute talk on 'Geothermal Energy: Opportunities Beyond Energy Production'. Summary: Geothermal energy is a renewable and flexible energy source with a broad variety of application spanning from power generation to heat production and storage. Covering a broad range of temperature, geothermal resource can also provide a clean supply of energy to the food supply chain and the number of commercial projects in increasing globally. From greenhouses to aquacolture, from beer to dairy processing, food dying and spirulina, these are only some of of the application of geothermal energy in the agri-food sector. This talk will provide an overview of geothermal energy, it's applications in complex energy systems and will provide insights on it's role in decarbonizing and creating new market opportunities in the agri-food sector.
Presented by Dr Basim Faraj, Faraj Consultants Pty Ltd; Australia The Base of Fish Scales Formation (BFSF) is basin-wide and marks the Albian/Cenomanian unconformity (Lower/Upper Cretaceous) boundary at the foreland Western Canada Sedimentary Basin (WCSB). The formation contains abundant fish remains within finely laminated, generally non-bioturbated, very fine sandstone, siltstone, tuff and organic rich mudstones. Regional log mapping of the formation as well as geochemical studies, facies and new core analyses integration allowed the elucidation of the main controls on BFSF productivity. The interplay between volcanic ash fall from Western Cordillera’s super volcanic eruptions, fish kill, authigenic dolomite & hydroxylapatite precipitation, the preservation of organic carbon and the sedimentation of sand/silt layers through storm action during major regression resulted in the preservation of this unique play. EOG Resources Canada and others have completed hundreds of vertical wells in the BFSF as either a stand-alone production zone or co-mingled with other producing zones. Production profiles shows a classic unconventional pattern.
Presented by Gary Greene, Moss Landing Marine Labs, San Jose State University and President, Circum-Pacific Council The Queen Charlotte transform (QC) fault system is a major structural feature that extends from near the northern end of Vancouver Island, Canada to the Fairweather Range of Alaska, where it connects to the Fairweather (FW) Fault system. The QC-FW transform marks the margin between the North America and Padific plates. Until recently the QC fault system, exclusively located in the oceanic realm, was poorly mapped but through the efforts of the USGS, Geological Survey of Canada, U. Alaska, and NOAA, the entire ca 900 km length of the fault and its immediate surrounding seafloor have been surveyed using multibeam echosounder and geophysical instruments. These data present a straight 'knife edged' fault that appears to accomodate the majority of the relative plate motion along the priary strand of the system. However, extensive deformation associated with volcanism and fluid seeps are present throughout most of the length of the system. Elongated conjugate ridges, volcanic cones, and mud volcanoes are well imaged in the bathymetry and in seismic-reflection profiles. Multiple fluid sources including thermogenic formed fluids from hydrocarbon basins are speculated. Seafloor structures and geomorphic feature formed on the seafloor from volcanism and fluid flow provide valuable habitats for various organisms that live at depth in the region.
Presented by Amanda Barlow, Independent Wellsite Geologist Amanda will be giving a run down on the progression of her career from working in mineral drilling roles to working as a wellsite geologist in offshore oil and gas drilling operations. Being a female in a male-dominated industry can present obstacles but Amanda will cover this, as well as such topics as: Deciding what field of geology to study at university What role options there are for graduate geologists and how to choose what's right for you Taking a career break to start a family Resuming your career when the time is right Making the decision to cross industries from minerals to oil and gas What a wellsite geologist actually does Navigating the ever-increasing shift from full-time employment to contractor employment Evaluating your suitability to field based work compared with office based work Deciding if you should stay in the industry or look elsewhere for work during a downturn in the O&G industry Ideas for surviving a downturn in the industry Becoming a published author and how to share your knowledge and experience with the world through writing and publishing your own books
Patawarta Diapir, approximately 2-6km2 located in the Central Flinders Ranges, South Australia, has been interpreted as a single allochthonous salt sheet containing Tonian-aged igneous and layered evaporite sedimentary intrasalt inclusions derived from the Callanna Group. In this webinar, Rachelle Kernen describes the diapir as five primarily silty limestone inclusions (0.5-2km2), re-interpreted as Ediacaran-aged Wonoka Formation and Patsy Hill member of the Bonney Sandstone (Wilpena Group). Webinar presented Thursday 3 December 2020 at 11:00 SGT (GMT+8) Singapore time
Hear John Kaldi speak about Integrated Approaches to Determining Net Pay: Caveats & Lessons Learned. Webinar presented via Zoom on Thursday 19 November 2020 at 11:00 SGT (GMT+8) Singapore time.
Join us to hear Jean-Jaques Biteau talk about key parameters controlling pressure regimes, trap sealing at the level of both the basin and the prospect, as well as areas of uncertainty. Webinar was presented on Thursday 22 October at 15:00 SGT (UTC+8) Singapore time zone.
Join us as Doug Peacock discusses how changes in oil price impact reserves in theory, and with practical industry examples. Webinar was presented via Zoom on Thursday 8 October 15:00 SGT (UTC+8) Singapore time zone
Join AAPG Asia Pacific to hear Agus Ramdahn, PhD to hear about a method of combining Bowers Method with density-sonic cross plots to estimate overpressure in the shelfal area of the Lower Kutai Basin This webinar was presented via Zoom on Thursday 1 October at 11:00 Singapore Time
In the past 3 decades the sequence stratigraphy jargon has proliferated, resulting in multiple definitions of the same surface or new surfaces and units based on drawings of deposition in response to relative changes in sea level. The close association between base-level changes, the formation of surfaces, and specific stratal stacking that define systems tracts are at the heart of the confusion. This webinar is proposed a back-to-basics approach, emphasizing key observations that can be made from any geologic data: lithofacies, lithofacies association, vertical stacking, stratal geometries, and stratal terminations.
Economic oil and gas fields have been increasingly found in deep-water continental margins for the past decade, where potential prospects record the key tectonic events associated with plate breakup and continental drift. In these regions, the exploitation of economic resources must take into account sustainable practices and environmental concerns of local populations. This talk will present case studies from multiple continental margins to then extrapolate major findings to basins in SE Asia.
There are over 300 known active onshore mud volcanoes globally, and many more offshore. Mud volcanoes are subsurface fluid escape features in which high pore pressures drive fluids, gases, and subsurface sediments to the surface. This talk will summarize mud volcanoes around the world and examine mud volcano plumbing systems and their link to petroleum systems.
Geologic interpretations are the basis of most exploration workflows, whether building a 3-D framework, a geocellular model, or modeling HC basins and estimating HC reserves. All these workflows rely on the most realistic and accurate interpretation in order to produce high-confidence results. Join us to hear from Catalina Luneburg, founder and director of TerraEx Group and specialist in the validation of HC basins and structural geology modeling.
These core purposes are as important now as they were when AAPG formed in 1917. AAPG is a mainstay of Gretchen's career because of the geoscientific knowledge, networking, education, and training she has received in more than 20 years of actively volunteering and from passively consuming AAPG publications earlier in her career. In this webinar, Gretchen Gillis, current President-Elect of AAPG, will illustrate the value of AAPG to its members in the current economic environment.
Bruce Ainsworth, Principal Reservoir Geoscientist, Chevron Sequence stratigraphy based on wireline logs, cores and outcrops is entering its fourth decade of mainstream usage in industry and academia. The technique has proved to be an invaluable tool for improving stratigraphic analyses in clastic shallow marine systems. In this talk we will present a simple quantitative technique to support sequence stratigraphic interpretations. The technique, utilizes two pieces of data that are readily available from every subsurface field or outcrop study; 1) parasequence thickness (T) and 2) parasequence sandstone fraction (SF). The key assumptions are that parasequence thickness can be used as a proxy for accommodation at the time of deposition, and parasequence SF can be used as a proxy for sediment supply. This means that quantitative proxies for rates of accommodation development and sediment supply can be acquired from wireline logs, cores and outcrop data. Vertical trends in parasequence thickness divided by SF (T/SF) approximate trends expected in systems tracts for changes in the ratio of rate of accommodation development to rate of sediment supply (δA/δS). The technique, termed “TSF analysis”, can also be applied at lower-order sequence and composite sequence scales. It provides a quantitative and objective methodology for determining rank and order of sequence stratigraphic surfaces and units. Absolute TSF values can be utilized to determine shoreline, stacked shoreline and shelf margin trajectories. Case studies are presented which demonstrate the robustness of the technique across a range of different data sets. Implications and potential future applications of TSF analyses will also be discussed. 
Presented by Kevin C. Hill, Associate Professor, University of Melbourne Gravity modelling of Australia's southern margin reveals that the initial rift with Antarctica was beneath the current Ceduna Delta. A regional, high-quality seismic traverse from the coast to oceanic crust across the Bight Basin has been assembled and interpreted in detail, then balanced, restored, decompacted, and replaced at paleo-water depths. The Late Cretaceous Ceduna Delta developed above a Late Jurassic-Early Cretaceous rift basin in three stages punctuated by significant pulses of uplift and erosion across areas >100 km wide and with up to 1 km of erosion. The Cenomanian White Pointer delta prograded into deepening water and hence underwent gravitational collapse. This was terminated in the Santonian when the Antarctic margin was pulled out from below, thus supplying heat to a remnant thicker outer margin crust, causing doming and erosion. Importantly, this established the saucer-shaped geometry of the Ceduna Delta that persisted throughout its development, so that any hydrocarbons generated in the southern half of the basin would have migrated towards this outer margin high. The Tiger Formation was deposited in shallow water in a full rift basin prior to breakup, which was followed by regional thermal subsidence. The Hammerhead delta developed on the newly formed passive margin but was terminated by another pulse of uplift and erosion, perhaps associated with a change in plate motion at the end of the Cretaceous. The finite element modelling of this proposed tectonic evolution will test its validity and predict hydrocarbon generation and migration through time.
Presented by Alexei V. Milkov, Director of Potential Gas Agency, Colorado School of Mines An exploration company is successful when it predictably and consistently creates high value from petroleum exploration. When defined like that, exploration success depends on the right combination of property (acreage), processes, people, and luck. In this talk, I will address less-understood elements of the exploration success equation such as forecasting abilities explorers, related biases, and the role of randomness, serendipity, and luck in the outcomes of exploration projects.
Salt welds form due to salt thinning by mechanical (e.g., salt-flow) and/or chemical (e.g., salt-dissolution) processes. This webinar explores how we use 3-D seismic reflection, borehole, and biostratigraphic data to constrain the thickness and composition of salt welds, and to test the predictions of analytical models for salt welding.
Henry W. Posamentier discusses the application of 3-D seismic stratigraphic analyses to the mitigation of risk associated with lithology prediction prior to drilling – workflows and techniques. Principles and workflows of seismic stratigraphy and seismic geomorphology will be discussed and numerous examples will be shown from a variety of different depositional settings.


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