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All material in this report, with accompanying figures, is property of SEG Advanced Modeling Corporation (SEAM). License to use the data and models can be obtained through SEAM. This document contains contributions from many different individuals and has been reviewed for accuracy. Reported errors will be fixed on a timely basis. The SEAM Life of Field Clastic model is the petroleum industry's only openly available time-lapse model of complex clastic reservoirs at field scale. Designed and built through a collaboration of 9 major oil and service companies in the SEAM Life of Field project (2016-2020), this digital Earth model tracks the evolution of geophysical properties caused by fluid flow and deformation during 10 years of production from shallow and deep clastic reservoirs, set in a deepwater sedimentary basin with active salt tectonics.
- Geology > Structural Geology > Tectonics (1.00)
- Geology > Rock Type > Sedimentary Rock > Clastic Rock (1.00)
- Geology > Geological Subdiscipline > Geomechanics (1.00)
- Geophysics > Borehole Geophysics (1.00)
- Geophysics > Seismic Surveying > Seismic Processing (0.97)
- Geophysics > Time-Lapse Surveying > Time-Lapse Seismic Surveying (0.96)
- (2 more...)
- North America > Cuba > Gulf of Mexico (0.89)
- Africa > West Africa (0.89)
Russell Fossler Ryan (1897-1935) an American geologist and was a founding member of SEG. Russell F. Ryan was born February 11, 1897, in Freeport, Illinois, and died in Houston, Texas, on October 8, 1935. His death resulted from an automobile collision near Hampstead, Texas, entirely the fault of the driver of another car. He is survived by his widow, Charlotte Cary Ryan, of Houston, Texas, his parents Mr. and Mrs. J. H. Ryan and one sister, Pearl Ryan, of Freeport, Illinois. Russell entered the University of Chicago in the fall of 1916, majoring in geology.
- Transportation > Ground > Road (0.59)
- Energy > Oil & Gas (0.48)
- North America > United States > Texas > West Gulf Coast Tertiary Basin > Tomball Field (0.94)
- North America > United States > Louisiana > Iowa Field (0.94)
- North America > United States > Louisiana > Cameron Meadows Field (0.94)
- North America > Cuba (0.89)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Julie E. Shemeta has been a prominent investigator and always a generous promoter and organizer in the fields of microseismicity and induced seismicity. Julie's involvement goes back long before the topic and technology became popular, or even available, as the commercial service now commonly used in the oil and gas industry. Her technical leadership in microseismology has been invaluable, exemplifying the ethical and technical standards SEG stands for. She has served as member and chair for The Leading Edge Editorial Board, coordinator of special sections, technical editor, and organizing committee chair for SEG Annual Meeting workshops. Julie E. Shemeta has been a prominent investigator and always a generous promoter and organizer in the fields of microseismicity and induced seismicity.
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
The Gulf of Mexico (GoM) FIGURE 1 is a long established prolific hydrocarbon basin located along the coast of the southern parts of the United States of America[1]. This area is notable not only for energy resources located offshore but also it's supporting infrastructure and refining capability onshore[2]. GoM origin is proposed to be related to the extensive regional subsidence of more than 10,000 ft during the Cretaceous time and its isolation is due to the continuous coeval carbonate growth of Florida and Yucatan platforms.[3] Large platform growth rates, compared to small depositions lead to the deepening of the GoM.[3] Present-day GoM size is the result of a huge mass of Cenozoic deposits which many refer to as the Gulf Coast Geosyncline.[3]
- North America > United States > Gulf of Mexico > Central GOM (0.30)
- North America > Mexico > Yucatán (0.25)
- Phanerozoic > Cenozoic (0.91)
- Phanerozoic > Mesozoic > Cretaceous (0.50)
- Geology > Geological Subdiscipline (1.00)
- Geology > Sedimentary Geology (0.73)
- Geology > Structural Geology > Tectonics > Compressional Tectonics > Fold and Thrust Belt (0.49)
- Geology > Rock Type > Sedimentary Rock > Clastic Rock > Mudrock (0.30)
- North America > United States > Gulf of Mexico > Central GOM > West Gulf Coast Tertiary Basin > Green Canyon > Block 727 > Tonga Field (0.99)
- North America > United States > Gulf of Mexico > Central GOM > West Gulf Coast Tertiary Basin > Green Canyon > Block 727 > Tahiti Field (0.99)
- North America > United States > Gulf of Mexico > Central GOM > West Gulf Coast Tertiary Basin > Green Canyon > Block 727 > Caesar Field (0.99)
- (18 more...)
- Reservoir Description and Dynamics > Unconventional and Complex Reservoirs (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (0.70)
- Reservoir Description and Dynamics > Reservoir Characterization > Exploration, development, structural geology (0.56)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Carlos Calderón-Macías joined ION Geophysical in 2006 advising seismic multicomponent, imaging, and model building. He is currently chief geophysicist in research and development. Carlos graduated with a PhD in geophysics from the University of Texas at Austin in 1997 and earned a bachelor's degree in geophysical engineering from the National Autonomous University of Mexico in 1992. Upon graduating from UT Austin, Carlos joined Mobil Technology as a visiting scientist conducting research in multiple elimination and imaging technology. He joined the Mexican Institute of Petroleum (2000) conducting research in multicomponent seismic for hydrocarbon exploration.
- South America > Brazil > Brazil > South Atlantic Ocean (0.89)
- North America > Cuba > Gulf of Mexico (0.89)
Gulf of Mexico (GOM) Lease Sale 261 will not be held on 8 November as scheduled by the US Bureau of Ocean Energy Management (BOEM). The agency said this week that as a result of the order issued by the US Court of Appeals for the Fifth Circuit on 26 October in Louisiana v. Haaland(Case No. 23-30666), it would postpone the sale. An appeals panel stayed a preliminary injunction granted earlier to plaintiffs, the American Petroleum Institute, State of Louisiana, and Chevron, who petitioned the court to have the sale move forward. The next arguments in the case are set for 13 November. Sale 261 was originally scheduled for 27 September, and later scheduled for 8 November, in response to judicial orders.
- Government > Regional Government > North America Government > United States Government (1.00)
- Energy > Oil & Gas (1.00)
- Oceania > Papua New Guinea > Papuan Peninsula > Central Province > National Capital District > Petroleum Retention License 15 > P’nyang Field (0.89)
- Oceania > Papua New Guinea > Papuan Peninsula > Central Province > National Capital District > Petroleum Retention License 15 > Elk-Antelope Field (0.89)
- Oceania > Papua New Guinea > Papuan Peninsula > Central Province > National Capital District > Petroleum Retention License 15 > Angore Field (0.89)
- (11 more...)
Making Available High Resolution UT Technology for Subsea Wall Thickness Scans
Oliveira, Nathan (Shell, London, United Kingdom) | Rincon, Pedro (Shell, London, United Kingdom) | Chittenden, Paul (TSC Subsea, Milton Keyes, United Kingdom) | Kenny, Stuart (TSC Subsea, Milton Keyes, United Kingdom) | Monnerat, Marcio (TSC Subsea, Milton Keyes, United Kingdom)
Abstract High resolution thickness mapping is a widely accepted method for fitness for service inspection and provides a permanent and quantitative record for remaining life assessment and through periodic campaigns can be used for comparative analysis. Subsea infrastructure introduces many challenges for inspection delivery and although robotic systems have been readily accepted, traditional methods of ultrasonic thickness reading is not possible through a large range of subsea coatings. In 2017, a major Oil Company started a collaboration with a subsea inspection service specialist to investigate the plausibility of Acoustic Resonance Technology (ART) on its insulated pipeline inventory. Having recognized the potential impact this technology could have in the subsea integrity process, the company supported the commercialization of this technology with the subsea service provider in 2020 and since then the method has continued to evolve. Nowadays in 2023, acoustic resonance technology is becoming rapidly recognized for the first-choice method for insulated and coated piping for subsea infrastructure. It provides fully quantitative information, is radiation free and can collect large areas of data points extremely quickly. The paper will explain the timeline of technology evolution from initial concept, lab tests and successful field trials. It will describe the method that was applied, how the signal processing and software algorithms determine resonance as a wall thickness and provide practical examples of the benefits of this method. It will talk about the different coatings that are typical for subsea applications and describe how the new acoustic resonance technology can eliminate the requirement to remove this coating or deploy a less productive and sometimes challenging radiographic method.
- South America > Brazil (0.48)
- Europe (0.29)
- South America > Brazil > Espírito Santo > South Atlantic Ocean > Campos Basin > Block BC-10 > Parque das Conchas Field (0.98)
- South America > Brazil > Brazil > South Atlantic Ocean (0.89)
- North America > Cuba > Gulf of Mexico (0.89)
- Facilities Design, Construction and Operation > Offshore Facilities and Subsea Systems (1.00)
- Facilities Design, Construction and Operation > Pipelines, Flowlines and Risers > Risers (0.71)
- Facilities Design, Construction and Operation > Pipelines, Flowlines and Risers > Materials and corrosion (0.47)
WellRisk: A Program to Implement a Risk-Informed Decision System for Well Integrity
Colombo, D. (Petrobras, CENPES, Rio de Janeiro, Rio de Janeiro, Brasil) | Junior, F. C. Couvre (Petrobras, Rio de Janeiro, Rio de Janeiro, Brasil) | Junior, I. Ikeda (Petrobras, Rio de Janeiro, Rio de Janeiro, Brasil) | De Almeida, L. M. (Petrobras, Rio de Janeiro, Rio de Janeiro, Brasil) | Pedrassa, M. H. (Petrobras, Rio de Janeiro, Rio de Janeiro, Brasil)
Abstract This paper presents WellRisk, a program designed to implement a risk-informed decision system for well integrity management during the operational phase. It explores the industry's evolution regarding well integrity and safety practices, advocating for a new paradigm centered on quantitative risk assessment within a data-oriented approach. The methodology combines three pillars: reliability data from well barrier elements, figures of merit and acceptance criteria for decision-making inspired by the probabilistic safety assessment from the nuclear industry, and a specific quantitative risk model specially developed for operational decisions. The paper illustrates the application with a case study considering the failure of a well barrier element, the impact of mitigation actions, and the comparison with the risk of replacing the failed element through a heavy workover. The main message of the paper is, however, how to systematically implement the methodology and transition from subjective approaches to a data-oriented decision-making process, yielding improved efficiency in resource allocation, reduced operational expenses, increased well production uptime, and enhanced safety.
- North America > Cuba > Gulf of Mexico (0.89)
- Europe > United Kingdom > North Sea (0.89)
- Europe > Norway > North Sea (0.89)
- (2 more...)
Abstract Under the environment of complex wellbore trajectory, deviated wells, or lateral drilling, be it for oil and gas, geothermal or carbon-sequestration, the newly developed downhole sensors, data-transmission in real-time together with data-analytics has enabled utilize all information contained in weight-on-bit, rate-of-penetration, rotational speed, torque, effective mud-weight used, and drilling vibrations. The high-resolution drilling data helps us mitigate drilling dysfunction and complement formation logs. In some cases, when conventional log acquisition is not possible, downhole drilling data may become the only source for formation properties. The paper presents our investigations in the standalone use of downhole drilling data. The process evaluates formation properties and integrates with other petrophysical logs to improve real-time data quality and interpretation. Case studies are included from both lab experiments and field examples. The current research efforts are encouraged by technological developments, in downhole sensors, which can now be included with the bottom-hole drilling assembly and used in in-situ acquisition of drilling data. We use downhole drilling data and consider both rule-based and machine-learning (ML) methods, to evaluate formation for lithological and geomechanical heterogeneities. A well from Gulf of Mexico is selected to apply the concept. Results are verified against established log-based formation properties estimation. In wells with high deviations, or complex trajectories, downhole drilling data is found to be more reliable compared to use of similar measurements made at surface followed by surface-to-downhole conversions. In the present work, we trained the system using 75% of downhole drilling data, together with measured vibrational and bending moment. The model was then applied in the remaining 25% of untrained intervals and demonstrated ability to predict formation properties with good correlation. The evaluation was done on memory-based data received after drilling, however, can also be implemented as automatic processing to support real-time operation. Drilling data is always available, whenever a well is being drilled. Real-time formation evaluation, based on this information, provides the drilling engineers and geoscientists an additional resource which can be either standalone or complementary to log data. Downhole drilling data is also available early in time compared to LWD sensors typically placed several tens of feet behind the bit. Ongoing improvements in sensor specifications, data quality and interpretation methods, is promising especially for environments where conventional real-time logging is not feasible. For robust ML application, training data from a range of geographical regions and reservoir is included to ensure correct prediction in all scenarios.
- Geology > Rock Type (1.00)
- Geology > Geological Subdiscipline > Geomechanics (1.00)
- North America > United States > New Mexico > San Juan Basin > San Juan Basin Field > Mancos Formation (0.99)
- North America > United States > Colorado > San Juan Basin > San Juan Basin Field > Mancos Formation (0.99)
- North America > Cuba > Gulf of Mexico (0.93)
- (4 more...)
Abstract Carbon capture and storage (CCS) is an essential technology that will play a major role in transitioning toward net-zero carbon emissions. CCS is the only group of technologies that reduces emissions in key energy and industrial sectors directly but also reduces CO2 to balance emissions in sectors difficult to abate. Offshore CCS offers most of the CO2 storage opportunities to achieve the growth required in storage capacity beyond the feasible onshore storage. Geomechanical screening of potential CCS sites for safe and efficient CO2 injection in deep geological formations is still a substantial challenge, especially over large areas with hundreds of drilled structures and fields, such as the shallow water Gulf of Mexico (GOM). In this study, we collect existing geophysical and petrophysical logs, drilling data (e.g., mud weight, leak-off test), pore pressure (MDT) and temperature data from 123 wells to evaluate potential CO2 leakage via the caprock due to gas injection-induced fault reactivation or fracturing. For this, we develop pore pressure and 1D mechanical Earth models for six wells, strategically distributed throughout the study area with all the required data, and map Shear Stress Levels (SSL) and Pressure Rooms (PR) for all potential storage formations. We further develop stress polygons based on friction equilibrium and poroelastic failure criteria for gas injection-induced shear failure. We characterize the contemporary state of stress in GOM by normal faulting (NF) stress, which is consistent with the predominantly extensional regime in the western intraplate North America. Using the World Stress Map (WSM) database, we find a mean SH orientation of N98° (±47°) based on 79 borehole breakouts with an overall length of 1241 m in 23 offshore wells in GOM. Stress orientations are locally affected by salt bodies and faults. We observe a pore pressure transition from hydrostatic at a shallow depth (i.e., wide PR) to an extreme overpressure zone (i.e., narrow PR), which makes deep reservoirs more sensitive to tensile fracturing during CO2 injection. We show that SSL is less than 0.4 in all reservoirs and seals in the GOM area, and PR decreases northwest of the study area. Furthermore, we reveal that the critical pressure and temperature limits for shear failure are far beyond the PR limit. Hence, following the PR limit, gas injection-induced reservoir failure and fault reactivation is unlikely in the study area, providing confidence that caprock mechanical leakage is a low-risk issue for long-term CO2 storage.
- Geology > Geological Subdiscipline > Geomechanics (1.00)
- Geology > Structural Geology > Tectonics > Plate Tectonics > Earthquake (0.69)
- Geophysics > Seismic Surveying (1.00)
- Geophysics > Borehole Geophysics (1.00)
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > North America Government > United States Government (0.46)
- North America > United States > Utah > Paradox Basin > Greater Aneth Field > Aneth Field > Paradox Formation > Desert Creek Zone (0.99)
- Europe > United Kingdom > North Sea > Northern North Sea > Northern North Sea Basin (0.99)
- Europe > Norway > North Sea > Northern North Sea > Northern North Sea Basin (0.99)
- (2 more...)
- Reservoir Description and Dynamics > Storage Reservoir Engineering > CO2 capture and sequestration (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)
- Health, Safety, Environment & Sustainability > Sustainability/Social Responsibility > Sustainable development (1.00)
- Health, Safety, Environment & Sustainability > Environment > Climate change (1.00)