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Increasing global concern about climate change and its impact on the environment and society has led to a variety of strategies to reduce carbon dioxide emissions and to remove CO₂ from the atmosphere and find places to store it. Many companies are hard at work to perfect methods of carbon capture, use, and storage. Franek Hasiuk, associate scientist at Kansas Geological Survey, said CCUS is the best technology available to reduce emissions produced by the global economy. Hasiuk is part of a team of scientists working on the Integrated Midcontinent Stacked Carbon Storage Hub, a project to investigate subsurface geology in southwest Kansas and southwest Nebraska and demonstrate the viability of injecting CO₂ into underground rock layers.
Unconventional resource development has a remarkable history, combining breakthroughs and advances in both technology and geoscience. The pace of progress might have slowed in recent years, but that history is still being written.
The goal of reservoir characterization work carried out for a shale play is to enhance hydrocarbon production by identifying the favorable drilling targets. The drilling operators have the perception that in organic-rich shale formations, horizontal wells can be drilled anywhere, in any direction, and hydraulic fracturing at regular intervals along the length of the laterals can then lead to better production. Given that this understanding holds true, all fracturing stages are expected to contribute impartially to the production. However, studies have shown that only 50 percent of the fracturing stages contribute to overall production. This suggests that repetitive drilling of wells and their completions without attention to their placement must be avoided, and smart drilling needs to be followed by operators.
'Sourced in part by the Eagle Ford Group, the Austin Chalk has been a hot spot for operators on and off for a century. The rise of horizontal drilling and hydraulic fracturing brought a renewed interest in the formation, which has produced new discoveries in Texas and Louisiana. Yet in parts of the Austin Chalk, extracting oil and gas can be extremely tricky. Several years ago, the Carbonate Reservoir Characterization Research Laboratory at the University of Texas began a project to analyze approximately 40 cores from the Austin Chalk – the first group to do so.
Exploration of the Brookian-age Nanushuk and Torok formations on the North Slope of Alaska is a hot topic these days. The Nanushuk and Torok formations are Cretaceous progradational clastic deposits in the Colville basin of Alaska. These formations offer new opportunities to the oil and gas community because of their shallow depth, vast spatial extent, publicly available data, scope of development and other appealing features.
Geologists will soon have a set of software tools that can automatically correlate hundreds of stratigraphic tops that will encompass thousands of well logs. The new approach – a software Python package, ChronoLog – will potentially change how such compilations are done.
Some 257 people gathered at the beautiful new Hilton Hotel in Port Moresby, Papua New Guinea in the last week of February 2020 to attend the first AAPG/EAGE Papua New Guinea Petroleum Geoscience Conference and Exhibition. The theme for the conference was, “PNG’s Oil and Gas Industry Maturing Through Exploration Development and Production.”
In 1994, while chairman and CEO of Barrett Resources, I got a call from my good friend Ray Thomasson, who said, “Bill I have a prospect Larry McPeek has worked up in the Wind River Basin that you might find interesting.” I’d worked every feature of geology in Wyoming’s Wind River Basin and was familiar with about every well drilled there during my career, so I frankly considered myself somewhat of an expert on the basin ... The Cave Gulch Prospect was located along the Owl Creek Thrust in a geologically complex area.
AAPG functions because of you, the members, and there are many different ways for you to get involved in your organization. Some choose to start in their local affiliated society, working on committees and holding offices within them. Others get involved through leadership and organizing events within the sections and regions. These are the grassroots of our membership, and AAPG leadership is working to strengthen these roots.
Five internationally acclaimed geoscientists have been named for this season’s AAPG Distinguished Lecture program, the Association’s flagship offering of cutting-edge geoscience excellence that once again will be accessible to everyone, everywhere, at any time.
Join us for 'Sequence Stratigraphy of Deepwater Depositional Systems - what is practical and relevant to the African Margin?'. A webinar presented by Dr. Ali Jaffri, founder of Applied Stratigraphix LLC. Dr. Jaffri will revisit paradigms that many have held onto but make little geological sense. He will also look at lesser-known but powerful predictive stratigraphic models that can be used to predict the distribution and quality of deepwater sandstones.
This course examines the evolution of concepts in deep water models, providing the participants with the knowledge and tools to describe and predict deep water reservoirs from exploration through production scales.
This class provides insights into fracture mechanics and the origins of fractures, and uses those concepts in a very applied sense to instill an understanding of natural fractures and their potential effects on permeability and fluid flow. This has direct applications to the petroleum, geothermal, CO₂ sequestration and environmental industries.
Shales and other low-permeability formations require multistage completions, hydraulic fracturing, and horizontal wells to produce at economic rates. This course focuses on the multistage completion systems that are used in these applications, including plug-and-perf, ball-activated systems (frac sleeves), and coiled tubing-activated systems (annular fracturing).
Integration is key to Unconventional developments, and geomechanics, which spans multiple disciplines, can be a useful framework for integration. This course will provide both the basics of geomechanics as well as detailed applications for Unconventionals that will enhance the attendee’s ability to improve the integration within their Unconventional team.
This course provides a comprehensive methodology for the diagnosis, analysis, and forecasting of well production data in unconventional resources. An extensive evaluation of the diagnostic tools for assessing data viability, checking data correlation along with flow regime identification is presented.
This course introduces a workflow and reviews methods for performing quantitative rate-transient analysis of fractured vertical and multi-fractured horizontal wells (MFHWs), produced from unconventional (low-permeability) gas and light oil reservoirs, including shales.
This course provides a robust framework for assessing uncertainty and risk in unconventional projects. It begins by summarizing the key discipline-specific workflows and work products needed to characterize your project.
This course will review the theory of fracture-injection/falloff testing, the design of DFITs, and interpretation of DFIT data using both straight-line and type-curve methods. Design and interpretation methods will be illustrated with North American field examples, including horizontal and vertical well DFITs in unconventional reservoirs.
This 16 hour course is based on the successful 2019 SEG book “Understanding Signals: Basic waveform analysis from a geophysical perspective”. It is designed for students as well as professionals who work with and support geophysicists and presents a simple and informal discussion of the fundamental concepts which underlie the quantitative part of geophysical analysis and interpretation.
This 16 hour course will include a mix of lectures, short exercises and discussion sessions. The content will be prepared to anticipate the likelihood that participants will have different levels of technical knowledge about petroleum geology. In addition to defining the main unconventional reservoir types, the course will distinguish between exploration and development drivers, and expose participants (through short, hands-on exercises) to other types of geoscience and engineering tools (Rock Eval, XRD, decline curves, etc.) of importance for unconventional reservoir characterization.
In this SEG eight hour course the basic physics relevant to CO₂ are presented, including the descriptions of gas, liquid and super critical phases (scCO₂).
This 16 hour course covers a range of advanced data analysis topics including novel signal processing techniques, pre-stack depth migration, reservoir characterization, time lapse analysis and the road ahead.
This 16 hour course follows the life cycle of an oil or gas property, from concept to abandonment, from the engineer’s point of view. Case histories are used to illustrate the geophysical tools that the engineering group would apply to solve an oil field development problem at various points in the property’s lifetime.
Save the date! Join us for the Exploration in Mature Basins GTW to be held from 7-9 February 2022 in Muscat, Oman. More information to follow soon.
Save the date for the Future Challenging Exploration in Mega-Hydrocarbon Hub GTW to be held from 13-15 December 2021 in Cairo, Egypt. More information to follow soon.
This course provides a 40-year paleogeographic synthesis of the Caribbean, northern South America (Colombia to Suriname), southern Mexico, Central America, and the Antilles, highlighting principles, opportunities and risks used to construct a regional hydrocarbon exploration framework.
The Caribbean Technical Symposium and E&P Summit: Recent Activity and Exploration Opportunities includes a technical symposium featuring regional geology and hydrocarbon potential on September 14 and an E&P Summit featuring panel discussions with industry executives on September 15.
Stratigraphy remains an essential part of geoscience practices. It provides our conceptual framework for visualizing how layers are arranged and connected in the subsurface. The workshop aims to share, discuss and explore many of the new ideas regarding the stratigraphy of the hydrocarbon-bearing basins throughout Sundaland.
This course covers a unique step-by-step methodology that covers the most important factors to consider when tackling conventional or unconventional carbonate plays. After each step, participants will get to work on real subsurface data from basins across the globe. Consider this course as the “top 10 things an oil finder must know about carbonates.”
Trip leader(s): Josep Anton Muñoz, Pablo Granado and Eduard Roca
Limit: 20 Participants
The aim of this 2-day field trip is the recognition of the key structural features of a fold and thrust belt detached on salt that has resulted from the inversion of a previous passive margin. To achieve this objective, some of the key and most spectacular localities of the southern Pyrenees have been selected along the ECORS-Pyrenees transect. This is a reference cross-section provided that for many years a huge amount of geological and geophysical data sets has been collected and integrating into a kinematic model of the South-Pyrenean fold and thrust belt. Subsurface data (well logs and seismic sections) will be combined with field observations. One of the main characteristics of the southern Pyrenees is the preservation of the synorogenic sediments since the earlier stages of deformation, which not only provide time constraints but also allow us discussion of kinematics of fault-related folds and thrust systems. Finally, the mild contractional deformation permits deciphering the initial geometry of the rift system and the salt structures that configure the structural grain of the passive margin before the inversion, allowing discussion of the role that these structures play during the fold and thrust belt development.
Itinerary: (day by day details of the trip)
Stop 1.1: The South-Pyrenean thrust front. Sant Llorenç de Montgai
Structure of a frontal thrust system and related unconformities. Out of sequence thrusts and synorogenic sediments.
The frontal thrust system of the South-central Pyrenees has been detached into the Triassic evaporites and involves a thin Mesozoic succession. It is characterized by an emergent thrust system during the sedimentation of upper Eocene and lower Oligocene continental sediments. Frontal thrusts were progressively buried by conglomerates, triggering a break-back thrusting sequence and the development of out-of-sequence thrusts bringing together strongly different Mesozoic successions, such as the Montroig thrust in the picture.
Stop 1.2: The Ager basin and the Montsec thrust sheet. Fontllonga
The Ager basin in the footwall of the Montsec thrust.
The Montsec thrust sheet developed from the Paleocene to the Early Eocene as recorded by continental to shallow marine sediments deposited in its footwall (Ager basin) as well as in the Tremp-Graus piggy-back basin. The lower Eocene sediments of these basins grade westward into the slope succession filling the Ainsa basin at the footwall of the Montsec thrust.
Stop 1.3: The frontal structure of the Montsec thrust sheet. Ametlla (optional: Montrebei)
Fault-propagation fold related with the inversion of Early Cretaceous extensional faults and growth deltaic sediments in the footwall syncline.
The Montsec thrust sheet involves the northern part of the Upper Cretaceous foreland basin characterised by a strong subsident turbiditic trough at the footwall of the Bóixols thrust. These turbidites grade southward into a carbonatic platform that constitutes the backbone of the Montsec Range (main ridge and cliff of the pictures). Underneath the Upper Cretaceous carbonates, some Early Cretaceous extensional faults are preserved in the hanging wall of the Montsec thrust, but others have controlled the development of a hanging wall frontal anticline. The geometry of this anticline as well as the structure of the growth sediments in the footwall Ager syncline are visible in the field. The subthrust geometry will be discussed integrating surface observations and the available seismic and well data.
Overnight in Tremp
Stop 2.1: The Sant Corneli-Bóixols anticline
Inversion of the rift margin
The Sant Corneli-Bóixols anticline is the most prominent frontal structure of the Bóixols thrust sheet in the central Pyrenees. This fold trends east–west and crops out for greater than 40 km along strike. The Sant Corneli-Bóixols anticline involves a thick Mesozoic succession detached on top of Triassic evaporites. The prefolding sequence consists of up to 5 km of prerift, synrift, and postrift carbonates ranging in age from Jurassic to Upper Cretaceous. Synfolding Upper Cretaceous sediments start with the upper Santonian carbonates and continue with a succession of Campanian and Maastrichtian marls and turbidites.
The Sant Corneli–Bóixols anticline is an example of an inversion fold developed along the rift margin of the Lower Cretaceous basin. Its geometry is related with the inverted extensional system. In particular, the three-dimensional geometry, including the saddles between culminations, is inherited from the previous transfer faults of the segmented rift margin.
Available seismic data and 3 exploratory wells constrain the geometry at depth.
Stop 2.2: The synororgenic Paleogene conglomerates
Inverted Lower Cretaceous basin and Eocene-Oligocene synorogenic conglomerates at Collegats gorge.
Stop 2.3 (optional): The Sopeira and Aulet minibasins. Sopeira
Minibasins developed by extensional collapse and salt evacuation during the thermal subsidence at the southern Pyrenean rift margin. Inversion of these mini-basins at the early stages of Pyrenean contractional deformation during Late Cretaceous.
Additional logistic information
Transportation will be with a small bus, assisted by minivans to have access to some of the outcrops.
Physical demand, equipment and safety
This is an easy field trip with very easy and limited hikes to get to the outcrops. Outcrops will be from main sealed roads.
Safety vests will be available, to be used by everybody of the group wherever required and asked to. There will be First Aid Kits available in each car during fieldwork.
The climate during mid-end November in the fieldwork area can be cold and rainy, although dry and sunny days may occur as well. The temperature for November in Tremp can range between 30C and 170C. Participants should be prepared in case we should encounter bad weather and you should bring warm and waterproof clothes and suitable hiking boots. -->
This 2-day conference brings together diverse experts working on modern and ancient turbidite, MTDs, contourite and hybrid/mixed systems in order to improve the present-day knowledge, models and predictive power.
This workshop brings together experts from academia and industry from a range of disciplines to share experiences, new approaches, new data and new ways of integrating information that can help in reducing the uncertainties related to the exploration activities in Thrust Belt Systems.
Join us in Salzburg, the “castle of salt” and cradle of Mozart and Doppler, for a meeting aimed at bringing together different perspectives in the science of evaporite basins: from their formation to their deformation, from description and characterization to modelling. Exploratory success in evaporite-rich basins worldwide has depended on the role of evaporites as a deformable substrate, as a seal, or even as a good thermal conductor. The aim of this workshop is to improve our understanding and predictive ability by addressing evaporite systems in an integrated manner, all the way from precipitation to structuration, and exploring the multiple properties of evaporite sequences. The pre- and post-meeting field trips will also explore the salt mining heritage of the region, first exploited by the Celts 3500 years ago, and the salt-related structures of the Northern Calcareous Alps.
Date: 25 November, 2021
Time: To be determined
View Information On CO2 Laboratory
Further details to come.
High CO2 fields and marginal fields (due to high levels of contaminants) are some of the challenges that are prevalent in the Asia Pacific petroleum industry. Join AAPG Asia Pacific for a 2-day workshop focused on best practices, risk-based planning and the role geoscientists and engineers will play in these changing times.
Date: 25 November 2021
Time: To be determined
Organized by: Southeast Asia Carbonate Research Laboratory, SEACARL, The Department of Geosciences, Faculty Fundamental Sciences, Information system Technology, Universiti Teknologi PETRONAS.
While AAPG and EAGE welcome this Field Trip in conjunction with our 2-day Geosciences Technology Workshop, all management and attending responsibilities will be taken care of by Universiti Teknologi PETRONAS.
Further details to come.
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.
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.
Gas hydrates, ice-like substances composed of water and gas molecules (methane, ethane, propane, etc.), occur in permafrost areas and in deep water marine environments.
The course will review core data, petrophysical comparisons, rock physics modeling (including pseudo logs and mechanical properties).
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 will be introducing signal processing techniques as a means to maximize extracting geomechanical data from petrophysical logs.
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.
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.
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.
The carbonate sequences that were deposited in the now exhumed Tethyan Ocean influence many aspects of our lives today, either by supplying the energy that warms our homes and the fuel that powers our cars or providing the stunning landscapes for both winter and summer vacations. They also represent some of the most intensely studied rock formations in the world and have provided geoscientists with a fascinating insight into the turbulent nature of 250 Million years of Earth’s history.
By combining studies from the full range of geoscience disciplines this presentation will trace the development of these carbonate sequences from their initial formation on the margins of large ancient continental masses to their present day locations in and around the Greater Mediterranean and Near East region.
The first order control on growth patterns and carbonate platform development by the regional plate-tectonic setting, underlying basin architecture and fluctuations in sea level will be illustrated. The organisms that contribute to sequence development will be revealed to be treasure troves of forensic information. Finally, these rock sequences will be shown to contain all the ingredients necessary to form and retain hydrocarbons and the manner in which major post-depositional tectonic events led to the formation of some of the largest hydrocarbon accumulations in the world will be demonstrated.
Request a visit from Keith Gerdes!
In comparison with the known boundary conditions that promote salt deformation and flow in sedimentary basins, the processes involved with the mobilization of clay-rich detrital sediments are far less well established. This talk will use seismic examples in different tectonic settings to document the variety of shale geometries that can be formed under brittle and ductile deformations.
Request a visit from Juan I. Soto!
Microseismicity induced by hydraulic fracture stimulation of a horizontal well was mapped with a near-surface buried array. Distinct linear trends of events were not parallel to the direction of fast shear wave polarization measured in the reservoir with a crossed-dipole anisotropy tool. Analysis of core from a nearby well revealed numerous calcite-filled fractures that did not induce shear wave polarization, but did significantly impact the failure behavior of the reservoir rock during the stimulation treatment. Hydraulic fracture simulation with DFN modeling and source mechanism analysis supports the interpretation of reactivated existing fractures rather than the formation of hydraulically-induced tensile fractures.
Request a visit from Sherilyn Williams-Stroud!
The following short course option was developed for geology and geophysics students that have not had much exposure to how geoscience is applied in industry. It can be tailored for undergraduate juniors and seniors or graduate students. The agenda can be modified to meet specific needs and time constraints. Contact the presenter to discuss options.
Request a visit from Fred Schroeder!
Analysis of microseismicity induced by hydraulic fracture stimulation in the Marcellus Shale shows changes in stress state for different zones of failure. During the treatment, shear failure occurs on both the J1 and J2 fracture orientations in response to different maximum stress orientations, indicating localized changes in the orientation during the treatment. Reactivation of a fault near the wellbore is associated with failure mechanisms with a higher volumetric component, indicating possible inflation of faults and fractures by the introduction of the slurry. Quantification of the stress conditions that are associated with inflation could potentially be used to optimize the stimulation by identifying which fractures will preferentially take on slurry volume.
The following short course option was developed for geology and geophysics students that have not had much exposure to how geoscience is applied in industry. It can be tailored for undergraduate juniors and seniors or graduate students. The agenda can be modified to meet specific needs and time constraints.
The Betic hinterland, in the westernmost Mediterranean, constitutes a unique example of a stack of metamorphic units. Using a three-dimensional model for the crustal structure of the Betics-Rif area this talk will address the role of crustal flow simultaneously to upper-crustal low-angle faulting in the origin and evolution of the topography.
This is a less-technical education topic. It can be condensed to an hour or given as 2 two-hour sessions. It stresses selected controversial aspects of fracking that touch some combination of environment and economics and includes a short video of how fracking is done.
Request a visit from David Weinberg!
Hydraulic fracturing has been around for decades. This talk describes some of the first applications of the technology, how it developed over time, and our current understanding of its impacts with some discussion of both water and earthquake hazards.
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