scholarly journals Evaluation of Gas Generation Potential Using Thermal Maturity Modelling—The Katakolo Case: A Probable Pathway to Energy Transition

2021 ◽  
Vol 5 (1) ◽  
pp. 70
Author(s):  
Vagia Makri ◽  
George Panagopoulos ◽  
Konstantinos Nikolaou ◽  
Spyridon Bellas ◽  
Nikos Pasadakis

It is evident that the increased focus on energy transition, will increase the demand for gas as it is the transitional fuel to the net zero CO2 emission era. The West Katakolo field is the only oil and gas discovery in Western Greece, and it is operated by Energean. The three offshore West Katakolo wells have defined both the oil and the gas zones, while onshore exploration wells have penetrated biogenic gas-saturated Plio-Pleistocene sands. This study assesses the gas generation potential of the local Plio-Pleistocene and Triassic sources using thermal maturity modelling based on the available legacy data, with limitations being addressed by running several case-scenarios. In conclusion, this study supports the generation of thermogenic and biogenic gas from the Triassic and Plio-Pleistocene sources respectively, demonstrating the importance of maturity modelling in hydrocarbon exploration, applied on the Katakolo case; a potential gas source to facilitate the energy transition in Greece.

2021 ◽  
Vol 73 (09) ◽  
pp. 50-50
Author(s):  
Ardian Nengkoda

For this feature, I have had the pleasure of reviewing 122 papers submitted to SPE in the field of offshore facilities over the past year. Brent crude oil price finally has reached $75/bbl at the time of writing. So far, this oil price is the highest since before the COVID-19 pandemic, which is a good sign that demand is picking up. Oil and gas offshore projects also seem to be picking up; most offshore greenfield projects are dictated by economics and the price of oil. As predicted by some analysts, global oil consumption will continue to increase as the world’s economy recovers from the pandemic. A new trend has arisen, however, where, in addition to traditional economic screening, oil and gas investors look to environment, social, and governance considerations to value the prospects of a project and minimize financial risk from environmental and social issues. The oil price being around $75/bbl has not necessarily led to more-attractive offshore exploration and production (E&P) projects, even though the typical offshore breakeven price is in the range of $40–55/bbl. We must acknowledge the energy transition, while also acknowledging that oil and natural gas will continue to be essential to meeting the world’s energy needs for many years. At least five European oil and gas E&P companies have announced net-zero 2050 ambitions so far. According to Rystad Energy, continuous major investments in E&P still are needed to meet growing global oil and gas demand. For the past 2 years, the global investment in E&P project spending is limited to $200 billion, including offshore, so a situation might arise with reserve replacement becoming challenging while demand accelerates rapidly. Because of well productivity, operability challenges, and uncertainty, however, opening the choke valve or pipeline tap is not as easy as the public thinks, especially on aging facilities. On another note, the technology landscape is moving to emerging areas such as net-zero; decarbonization; carbon capture, use, and storage; renewables; hydrogen; novel geothermal solutions; and a circular carbon economy. Historically, however, the Offshore Technology Conference began proactively discussing renewables technology—such as wave, tidal, ocean thermal, and solar—in 1980. The remaining question, then, is how to balance the lack of capital expenditure spending during the pandemic and, to some extent, what the role of offshore is in the energy transition. Maximizing offshore oil and gas recovery is not enough anymore. In the short term, engaging the low-carbon energy transition as early as possible and leading efforts in decarbonization will become a strategic move. Leveraging our expertise in offshore infrastructure, supply chains, sea transportation, storage, and oil and gas market development to support low-carbon energy deployment in the energy transition will become vital. We have plenty of technical knowledge and skill to offer for offshore wind projects, for instance. The Hywind wind farm offshore Scotland is one example of a project that is using the same spar technology as typical offshore oil and gas infrastructure. Innovation, optimization, effective use of capital and operational expenditures, more-affordable offshore technology, and excellent project management, no doubt, also will become a new normal offshore. Recommended additional reading at OnePetro: www.onepetro.org. SPE 202911 - Harnessing Benefits of Integrated Asset Modeling for Bottleneck Management of Large Offshore Facilities in the Matured Giant Oil Field by Yukito Nomura, ADNOC, et al. OTC 30970 - Optimizing Deepwater Rig Operations With Advanced Remotely Operated Vehicle Technology by Bernard McCoy Jr., TechnipFMC, et al. OTC 31089 - From Basic Engineering to Ramp-Up: The New Successful Execution Approach for Commissioning in Brazil by Paulino Bruno Santos, Petrobras, et al.


2021 ◽  
Author(s):  
John Young ◽  
Myrtle Dawes ◽  
Andrew Smith ◽  
Keiren Lake ◽  
Keith Lawton

Abstract This paper discusses the challenges that must be addressed to support the financing of novel technologies needed to achieve the United Kingdom's stated goal of achieving net zero emissions by 2050. It identifies practical steps that stakeholders providing investment funding, as well as technology developers can take to drive net zero outcomes. The paper represents the first time such a diverse group of independent industry professionals have come together to explore financing challenges associated with the Energy Transition. Apart from the diversity of the authors backgrounds and expertise, a survey was conducted of 121 respondents from across the energy landscape while preparing this paper. The survey was launched to an international audience, however, respondents were largely from the oil and gas and renewable industries from both the UK and Europe. The paper seeks to align investors in technological developments and will enable them to more accurately value the risks of novel technology deployment. This requires developers to present their solutions in a manner that investors can understand, and which enables financial risk to be more accurately aligned with the Technology Readiness Level (TRL) approach. Another critical element is making sure the rush to develop newer technologies to achieve Net Zero takes into account the right Environmental, Social, and Governance (ESG) considerations. The ultimate goal of the paper is to begin a dialogue that will eventually lead to a shift in the way that private and public institutions think about financing nascent technologies.


Author(s):  
V. Mykhailov ◽  
O. Karpenko

Based on the analysis of numerous works and publications, the studying of core samples, the interpretation of well-logging data, the studying of geochemical features and the degree of thermal processing of oil and gas strata, the prospects for unconventional oil and gas potential of geological structures and formations of the Zachepiliv-Liventsivsk shaft of the southern zone of the Dnieper-Donetsk Depression (DDD) are determined, which corresponds to the Rudenkivsko-Proletarsky oil and gas region. Based on the studies, it is proved that the thermal maturity of the rocks of the southern zone within the Zachepiliv-Liventsivsk shaft is extremely uneven both in area and in section and only in certain areas (Bagatoyska-25, Kernosivska-2 wells), or at depths greater than 1500 m (well Zachepilsvska-100) or even 2700 m (well Ulyanivska-18), reaches favorable values sufficient for gas generation. Therefore, despite the rather high content of TOC, which, as a rule, significantly exceeds 1–2 %, the prospects of this section of the southern zone of the DDD with respect to the discovery of shale gas or gas of tight rocks are very problematic. According to the set of indicators characterizing potentially gas-containing shale rocks, the most promising section of this part of the southern zone is the well area. Bagatoyska-25 and Kernosivska-2. Predicted shale gas resources of this section can be preliminary estimated at 40–50 billion m3. This should be taken into account when planning further exploration for shale gas. From the data analysis, one can distinguish depth intervals at which rocks enriched with organic matter can generate oil – from 900 to 3100 m, fatty gas with condensate – from 2100 to 4000 m and dry gas – from 2300 to deeper than 4000 m.


2017 ◽  
pp. 28-35 ◽  
Author(s):  
Yu. I. Salnikova ◽  
R. N. Abdrashitova ◽  
V. A. Beshentsev

Hydrogeochemical conditions of the West and East Messoyakhsk fields are discussed in the article. These conditions of the complex hydrogeological Mesozoic basin are important in the formation and preservation of oil and gas deposits. The geological structure is characterized by the presence of a large number of disjunctive dislocations. The fields belong to the Elysion geodynamic water drive system - the Omsk-Gydansk structural zone. This determined the conditions and intensity of oil and gas generation.


2020 ◽  
Vol 10 (4) ◽  
pp. 95-120
Author(s):  
Rzger Abdulkarim Abdula

Burial history, thermal maturity, and timing of hydrocarbon generation were modeled for five key source-rock horizons at five locations in Northern Iraq. Constructed burial-history locations from east to west in the region are: Taq Taq-1; Qara Chugh-2; Zab-1; Guwair-2; and Shaikhan-2 wells. Generally, the thermal maturity status of the burial history sites based on increasing thermal maturity is Shaikhan-2 < Zab-1 < Guwair-2 < Qara Chugh-2 < Taq Taq-1. In well Qara Chugh-2, oil generation from Type-IIS kerogen in Geli Khana Formation started in the Late Cretaceous. Gas generation occurred at Qara Chugh-2 from Geli Khana Formation in the Late Miocene. The Kurra Chine Formation entered oil generation window at Guwair-2 and Shaikhan-2 at 64 Ma and 46 Ma, respectively. At Zab-1, the Baluti Formation started to generate gas at 120 Ma. The Butmah /Sarki reached peak oil generation at 45 Ma at Taq Taq-1. The main source rock in the area, Sargelu Formation started to generate oil at 47, 51, 33, 28, and 28 Ma at Taq Taq-1, Guwair-2, Shaikhan-2, Qara Chugh-2, and Zab-1, respectively. The results of the models demonstrated that peak petroleum generation from the Jurassic oil- and gas-prone source rocks in the most profound parts of the studied area occurred from Late Cretaceous to Middle Oligocene. At all localities, the Sargelu Formation is still within the oil window apart from Taq Taq-1 and Qara Chugh-2 where it is in the oil cracking and gas generation phase.


Author(s):  
Joseph A. Curiale ◽  
Stephen R. Larter ◽  
Robert E. Sweeney ◽  
Bruce W. Bromley

Significance The IEA describes the technological necessities and the many challenges, noting that the energy transition will require unprecedented international cooperation. The scale of the actions needed, coupled with current trends, suggest that the world is unlikely to achieve carbon neutrality by 2050. Impacts Carbon standards may divide global trade, with developing nations unable to afford to export products to developed nations in key sectors. Pressure on western oil and gas companies to align their spending with net zero carbon targets will grow. Energy transition technologies will attract sizeable government funding to speed up deployment and reap the benefits of early leadership. Japan, Australia and the Philippines have said they will ignore the IEA roadmap and still invest in coal, oil, and natural gas projects.


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