The Evolution of Giant Oil Field Production BehaviorSpringer Science and Business Media LLC - Tập 18 - Trang 39-56 - 2009
Mikael Höök, Bengt Söderbergh, Kristofer Jakobsson, Kjell Aleklett
The giant oil fields of the world are only a small fraction of the total number of fields, but their importance is huge. Over 50% of the world’s oil production came from giants by 2005 and more than half of the world’s ultimate reserves are found in giants. Based on this, it is reasonable to assume that the future development of the giant oil fields will have a significant impact on the world oil ...... hiện toàn bộ
Dynamics Behind Cycles and Co-movements in Metal Prices: An Empirical Study Using Band-Pass FiltersSpringer Science and Business Media LLC - Tập 29 - Trang 1487-1519 - 2019
Matias Marañon, Mustafa Kumral
After living one of the most intense metal price cycles, several ongoing macroeconomic phenomena with the potential of structurally redefining the long-run supply and demand for metals, and raising divergency regarding where the metal prices are trending, it is suitable to evaluate the dynamics in the metal prices, especially focus on the long cyclical components. This article studies in detail th...... hiện toàn bộ
Evolution of County Socio–Ecological Systems in Nature Reserves in Western China Over the Past 30 YearsSpringer Science and Business Media LLC - Tập 32 - Trang 1809-1822 - 2023
Qinhua Wang, Le Chen, Penglong Wang, Bao Wang, Taibao Yang
The evolution process of socio–ecological systems from 1990 to 2020 in the Tianzhu Tibetan Autonomous County, located in the National Key Ecological Function Area of western China, was analyzed quantitatively based on resilience theory and methodology combined with catastrophe theory and adaptive cycle theory, through field investigation, questionnaires and interviews, social data collection and r...... hiện toàn bộ
Evaluation of Source Rock Potentiality and Prediction of Total Organic Carbon Using Well Log Data and Integrated Methods of Multivariate Analysis, Machine Learning, and Geochemical AnalysisSpringer Science and Business Media LLC - Tập 31 - Trang 619-641 - 2022
Edwin E. Nyakilla, Selemani N. Silingi, Chuanbo Shen, Gu Jun, Alvin K. Mulashani, Patrick E. Chibura
In this study, integrated approaches based on multivariate analysis (MVA), machine learning (ML), and geochemical analysis are proposed to investigate the potential of hydrocarbon reserves and total organic carbon (TOC) prediction. These approaches employed the MVA technique as a future selection method in source rock evaluation. We used geochemical data from 30 core samples taken equally from wel...... hiện toàn bộ
A New Semi-greedy Approach to Enhance Drillhole PlanningSpringer Science and Business Media LLC - - 2020
Raphaël Dutaut, Denis Marcotte
In advanced exploration projects or operating mines, the process of allocating capital for infill drilling programs is a significant and recurrent challenge. Within a large company, the different mine sites and projects compete for the available funds for drilling. To maximize a project’s value to its company, a drillhole location optimizer can be used as an objective tool to compare drilling camp...... hiện toàn bộ