The main part of the field seminar will focus on the description of the fractured carbonates and the extrapolation from the outcrop observations to the subsurface for building geologically plausible reservoir models.

This course is for earth scientists and engineers involved in exploration or production from carbonate rocks. This is an introductory course that assumes no pre-existing knowledge. It moves from basic principles to advanced ideas and case studies that will also help experienced geoscientists with practical aspects of carbonate depositional systems.

AAPG Europe are excited to announce the first event to be held in the beautiful capital city of Vilnius, Lithuania. This Geosciences Technology Workshop will be based around the main theme "Hydrocarbon Exploration in Lithuania and the Baltic Region" and we expect interests from Latvia, Estonia, Poland and Kaliningrad.

Join AAPG Europe and the Lithuanian Geological Survey for this exciting Core Workshop. This workshop will follow on from the 'Hydrocarbon Exploration in Lithuania and the Baltic Regions' event taking place at Vilnius University on 24th – 25th October.

The Early Palaeozoic Hydrocarbon System in the Baltic Basin and adjacent territories involves Middle-Late Cambrian, the Late Ordovician (Mossen & Fjacka Formations) and the Early Silurian Graptolitic Shales source rocks and the major complexes of reservoirs, associated with Middle Cambrian sandstones, Ordovician and Silurian reefogenic and carbonate build-ups.

The major reservoirs of the Baltic Basin are:

• The Middle Cambrian (Deimena Fm). Sandstones - Producing
• The Early Ordovician (Tremadoc, Salantai Fm.) sandstones
• Late Ordovician (Early Ashgill) organogenic limestones/carbonate buildups
• Late Silurian (Late Ludlow/Pridoli) reefogenic carbonate build-ups

Core Presentation:

Cores presented from the following 3 reference wells:

1. The Middle Cambrian - the Early Ordovician quartz sandstone reservoirs

The Middle Cambrian Deimena Group sandstones comprises all the major economically important oil fields located Lithuania, Latvia, Kaliningrad district and Polish onshore and Baltic Sea offshore. The other, much less significant, potential reservoirs are the Late Ordovician carbonate build-ups of Gotland (Sweden) and Southern part of Lithuania and the Late Silurian carbonate reefogenic buildups in South Lithuania (Zdanaviciute O., Sakalauskas J. eds., 2001, Zdanaviciute, Lazauskiene 2007; Kanev et al., 1994).

The reference sections would demonstrate core from fine-grained (dominated by 0.25-0.1 mm fraction (30-75%)) quartz sandstones containing thin clay and siltstone interlayers. The sandstones are to a different degree litified by compaction and predominantly cemented by quartz and diagenetic quartz cement that has the major control on reservoir properties.

The Early Ordovician

The early Ordovician Tremadoc age (Pakerort Regional Stage, Salantai Fm.) strata distributed rather locally are a reservoir unit at the base of the Ordovician succession, comprising quartz sandstones and quartz siltstones of only 0.5 to 4 m thick. It overlays directly to the Middle Cambrian Deimena Group sandstones and together form one reservoir unit with similar reservoir properties. The formation is overlain by the Early Ordovician shales. Several small oil fields are producing from this reservoir unit in the western part of Lithuania.

2. The Late Ordovician (Early Ashgill) and Late Silurian (Late Ludlow/Pridoli) organogenic limestone and reefogenic carbonate buildups reservoirs

The Late Ordovician - The Late Silurian

The reservoir rocks within the Silurian succession are the Wenlock - Early Ludlow and Pridolian reefogenic carbonates comprising secondary dolomites and reefal limestones with thicknesses of tens of meters. Silurian sequences are locally distributed along the Eastern slope of the Baltic Basin. The Wenlockian - Early Ludlow strata are up to 28 m thick; the effective porosity ranges from 12% to 17% and average permeabilities – 12-15 mD. The most favourable conditions for the formation of non-structural traps (reef-associated, lithologic-stratigraphic and combined) are associated with the carbonates (mainly stromoporoidal and crinoidal limestones) sucession of about 90 m thick of the late Ludlow- earliest Pridoli (Minija and Ventspils Formations). The reservoir rocks has mean porosities of 6-15 % and up to 26% and permeability ~465mD, reaching up to 2400mD. The Late Silurian reservoir rocks mainly occur in central and southern Lithuania in the central part of the basin.

3. Late Ordovician (Mossen & Fjacka Formations) and the Early Silurian Llandovery Black Shales

The Late Ordovician Shales

In the central and eastern part of the Baltic Basin the potential source rocks comprises dark grey and black shales of the Late Ordovician Late Caradoc-Early Asghill Fjacka and Mossen formations. Both units are generally thin, reaching only up to 5–10 m; the thicknesses of Fjack & Mossesn Formations are 6 m and 4 m respectively. TOC content are mostly in the 0.9 to 10 % range, with occasional higher values of up to 15 %. The source rock facies are kerogen type II and II-III.

The Early Silurian Shales

Potential source rocks in the Silurian succession are found within the Llandovery, Wenlock and, presumably, Ludlow-aged strata. The Silurian source rocks are composed of dark grey and black graptolite shales and dark grey and black clayey marlstones. Within the Baltic Basin organic matter content generally ranges from 0.7 to 9–11%, but can be as high as 16.46 % (fig. 5.5.b; Zdanaviciute, Lazauskiene, 2004). In terms of petrography, the organic matter is dominated by syngenetic, sapropelic and marine material, together with vitrinite-like particles and abundant faunal remains. Detrital sapropel is scattered as very fine-grained particles and lenses. Liptinite (up to 20%) generally occurs together with dispersed liptodetrinite in sapropelic organic matter, or more rarely as scattered particles. (Zdanavičiūtė, Swadowska 2002, Zdanaviciute, Lazauskiene, 2004, 2007, 2009).

Maturities in the area of interest attain at pre-Silurian level 1.3% Ro and around 1.0% Ro at Silurian source rock level, and reach 1.9% on the prominent West-Lithuanian local temperature high Zdanaviciute, Lazauskiene, 2004, 2007, 2009)

Please note registration for the Core Workshop is available to attendees of the upcoming GTW "Hydrocarbon Exploration in Lithuania and the Baltic Region" on the 24th - 25th October 2016. Please click here for information about the event.

This two-day workshop aims at sharing knowledge and ideas on the advancements in subsurface mapping. This includes recent technologies in acquiring seismic and non seismic data, improvements in imaging the subsurface and advances in data interpretation.

Join leading scientists and industry practitioners at Moving toward the Prediction of Unconventional Plays: Lessons Learned from Tight and Shale Reservoirs in Neuquén Basin, Argentina, a Geosciences Technology Workshop (GTW) hosted by the American Association of Petroleum Geologists (AAPG) and the Argentine Association of Petroleum Geologists and Geophysicists (AAGGP).

Welcome to a workshop in which we will bring together experts, equipment providers, robotics experts, and others knowledgeable in a wide range of commercial drone usage, which includes monitoring in the oil industry, digital outcrop surveying, safety and security monitoring, utility inspection, real estate, agriculture, construction, environmental protection, and more.

Here is an introduction to the tools and techniques that geologists and geophysicists use to locate gas and oil, that drillers use to drill the wells and that petroleum engineers use to test and complete the wells and produce the gas and oil. Exercises throughout the course provide practical experience in well log correlation, contouring, interpretation of surface and subsurface, contoured maps, seismic interpretation, well log interpretation, and decline curve analysis.

The paradigm of sequence stratigraphy has entered a new phase and these once revolutionary concepts are now applied in pre-drill exploration at ever-increasing resolution. The concepts also prove useful in production geology, especially in enhanced oil recovery efforts in previously abandoned fields.

The paradigm of sequence stratigraphy has entered a new phase and these once revolutionary concepts are now applied in pre-drill exploration at ever-increasing resolution. The concepts also prove useful in production geology, especially in enhanced oil recovery efforts in previously abandoned fields.

The paradigm of sequence stratigraphy has entered a new phase and these once revolutionary concepts are now applied in pre-drill exploration at ever-increasing resolution. The concepts also prove useful in production geology, especially in enhanced oil recovery efforts in previously abandoned fields.

An overview of a new ambient seismic imaging method and applications of the method throughout the lifecycles (exploration through refracing) of unconventional oil and/or gas fields.

The goal of this e-symposium is to review an important dimension in the ways geologist can build and update geological models using information from performance data.

The Eagle Ford Shale in South Texas is one of the more exciting shale plays in the United States at the current time.

This e-symposium will focus on how surface geochemical surveys and Downhole Geochemical Imaging technologies can be utilized jointly to directly characterize the composition of hydrocarbons vertically through the prospect section.

The presentation will discuss key reservoir information and how to develop a predictive pressure model.

This work investigates how heterogeneity can be defined and how we can quantify this term by describing a range of statistical heterogeneity (e.g. coefficient of variation and the Lorenz coefficient).

Effective hydraulic fracture stimulation is critical for shale development, and microseismic is the only technology able to map the growth of these hydraulic fracture networks.

This study will focus in the combination of λρ – μρ inversion with clustering analysis techniques in order to discriminate brittle zones in the Barnett Shale.

There are more approximately 1,000 oil and gas fields in the world that have been classified as "giant," containing more than 500 million barrels of recoverable oil and /or 3 trillion cubic feet of gas.

This presentation will look at well placement vertically in the pay, well azimuth and well trajectory with explanations of how geology and post-depositional effects can make the difference between a successful well and a failure.

Projects in several shales will be discussed, including Marcellus, Eagle Ford, Haynesville, Fayetteville, Montney, and Barnett, as will several seismically-detectable drivers for success including lithofacies, stress, pre-existing fractures, and pore pressure.

Unger Field, discovered in1955, has produced 8.6 million barrels of oil from a thinly (several ft) bedded, locally cherty dolomite containing vuggy and intercrystalline porosity.

This presentation describes a proven workflow that uses a standard narrow azimuth 3D seismic, conventional logs, image logs and core data to build five key reservoir properties required for an optimal development of shale plays.

This e-symposium focuses on methods for predicting connectivity within clastic fluvial systems.

The goal of this e-symposium is to provide an overview of the latest trends and technologies for water management for oil and gas drilling, completions, and production.

This talk will present a brief overview of proppants followed by a comprehensive discussion of the major considerations that are driving proppant selection in these plays.

This e-symposium presents techniques for predicting pore pressure in seals by examining case studies from the Gulf of Mexico and incorporating the relationship between rocks, fluids, stress, and pressure.

This presentation discusses one operator’s approach to fully integrate data captured in the Marcellus Shale in order to optimize horizontal well performance.

This e-symposium provides highlights of the hydraulic fracturing mechanics, analysis, and design, and is derived from a two and one-half (2-1/2) day course which is designed for drilling, completion, production engineers, engineering technicians, geologists, well-site and completion supervisors, and managers, who desire to possess a comprehensive and integral knowledge of Hydraulic Fracturing.

The Niobrara Petroleum System of the U.S. Rocky Mountain Region is a major tight petroleum resource play.

This e-symposium will provide information on which tools, processes, and procedures all geoscientists, engineers, and technical professionals working in shale plays need to understand and implement.

The Mississippian-Devonian Bakken Petroleum System of the Williston Basin is characterized by low-porosity and permeability reservoirs, organic-rich source rocks, and regional hydrocarbon charge.

This e-symposium covers how to conduct an interdisciplinary evaluation of mature fields to determine the best approach to recover remaining reserves.

The presentation will focus on hydraulic fracture geometry in shales, the materials used in the fracturing process, and treatment monitoring via microseismic.

This presentation will show where there are cases of missing sections, but none of them can be attributed to normal faulting.

Upon successful completion of this course, you will be able to describe geomechanics in shale reservoirs and discuss differences between plays.

This 1-hour web-cast will arm the G&G asset team professionals with a core-competency understanding of these critical field realities, with direct reference to recent documented field experience and learnings

This esymposium takes a close look at workflows associated with resource plays, and analyzes where integration must occur between disciplines, data, and workflows at all phases of the process.

This course can help you gain the ability to describe the complex and highly variable reservoirs, which are typified by complex internal heterogeneity.

This e-symposium introduces you to the practical benefits of thermal profiling for a variety of unconventional oil and gas projects, including tight gas sands, oil shale, low-gravity oil.

Join two GIS/geoscience experts Scott Sires and Gerry Bartz as they use information from the Teapot Dome Field in Wyoming (DOE/RMOTC program).

Unconventional Resources is an online course that enables participants to learn about shale gas, shale oil and coalbed methane.

This course introduces the learner to the fundamentals of shale gas, including current theories that explain its origin, and how to determine which reservoirs are commercially viable.

Biomass Energy Basics is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for biopower and biofuel.

Renewable & Non-Renewable Resources is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for renewable energy.

Solar Energy Basics is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for solar energy.

Wind Energy Basics is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for wind energy.

Geothermal Energy Basics is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for geothermal energy.

This online course provides an overview of the petroleum industry from what is natural gas and crude oil to how to explore, drill, and produce oil and gas.