scholarly journals Utilizing Integrated Prediction Error Filter Analysis (INPEFA) to divide base-level cycle of fan-deltas: A case study of the Triassic Baikouquan Formation in Mabei Slope Area, Mahu Depression, Junggar Basin, China

2018 ◽  
Vol 10 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Rui Yuan ◽  
Rui Zhu ◽  
Jianhua Qu ◽  
Jun Wu ◽  
Xincai You ◽  
...  
Keyword(s):  
Prediction Error ◽  
Junggar Basin ◽  
Coarse Grained ◽  
Positive Trend ◽  
Medium Term ◽  
Short Term ◽  
Base Level ◽  
Fan Delta ◽  
Depositional Systems ◽  
Filter Analysis

Abstract The Mahu Depression is an important hydrocarbon-bearing foreland sag located at the northwestern margin of the Junggar Basin, China. On the northern slope of the depression, large coarse-grained proximal fan-delta depositional systems developed in the Lower Triassic Baikouquan Formation (T1b). Some lithologic hydrocarbon reservoirs have been found in the conglomerates of the formation since recent years. However, the rapid vertical and horizontal lithology variations make it is difficult to divide the base-level cycle of the formation using the conventional methods. Spectral analysis technologies, such as Integrated Prediction Error Filter Analysis (INPEFA), provide another effective way to overcome this difficultly. In this paper, processed by INPEFA, conventional resistivity logs are utilized to study the base-level cycle of the fan-delta depositional systems. The negative trend of the INPEFA curve indicates the base-level fall semi-cycles, adversely, positive trend suggests the rise semi-cycles. Base-level cycles of Baikouquan Formation are divided in single and correlation wells. One long-term base-level rise semi-cycle, including three medium-term base-level cycles, is identified overall the Baikouquan Formation. The medium-term base-level cycles are characterized as rise semi-cycles mainly in the fan-delta plain, symmetric cycles in the fan-delta front and fall semi-cycles mainly in the pro-fan-delta. The short-term base-level rise semi-cycles most developed in the braided channels, sub-aqueous distributary channels and sheet sands. While, the interdistributary bays and pro-fan-delta mud indicate short-term base-level fall semi-cycles. Finally, based on the method of INPEFA, sequence filling model of Baikouquan formation is established.

Controls of Short-Term Base-Level Cycle on Macroscopic Heterogeneity of Reservoir: a Case Study of the Major Oil Layer of Liuzan Oilfield in Nanpu Sag

2011 ◽  
Vol 347-353 ◽  
pp. 56-59
Author(s):  
Rui Zhang ◽  
You Liang Ji
Keyword(s):  
Short Term ◽  
Delta Front ◽  
River Sand ◽  
Significant Control ◽  
Plain Area ◽  
Delta Plain ◽  
The Third ◽  
Base Level ◽  
Fan Delta ◽  
Nanpu Sag

Based on the depositional model and characteristics of fan delta, the short-term base-level cycle of the third submember of the third member of Shahejie Formation （Es33）in North region major oil layer of Liuzan Oilfield of Nanpu Sag is divided into three basic categories applying high-resolution sequence stratigraphy with the reference to core and logging data, namely, deepening-upward asymmetrical type, shallowing-upward asymmetrical type and symmetrical type. Different variation models for macroscopic heterogeneity of reservoir belonging to different categories of short-term base-level cycle were established in this paper; it was further pointed out that the changes of base-level and the ancient landform were major factors controlling the characteristic discrepancy of macroscopic heterogeneity of reservoir. In fan delta plain area, the ancient landform is smooth. Deepening-upward asymmetrical cycle is mainly composed of braided river sand body, and the changes of base-level exert little control on porosity with significant control on permeability. At the delta front slope, the landform becomes steep. Deepening-upward asymmetrical cycle is mainly composed of underwater distributary channel with genetic mechanism of gravity flow. The vertical variations of porosity and permeability inside the cycle are rather complicated. Since the physical properties are mainly manifested as the control on autogenic cycle, they do not directly influence the changes of base level.

scholarly journals Peculiarities, factors and trends of financial behavior of youth (on the example of the Republic of Bashkortostan)

2021 ◽  
pp. 31-41
Author(s):  
Gulshat Rashitovna Fatkullina ◽  
Aibulat Galimyanovich Karimov
Keyword(s):  
Financial Literacy ◽  
Social Institutions ◽  
Financial Behavior ◽  
Poor People ◽  
Positive Trend ◽  
Medium Term ◽  
Short Term ◽  
Republic Of Bashkortostan ◽  
The Subject ◽  
The Republic

The object of this research is the youth of the Republic of Bashkortostan. The subject of this research is the financial behavior of youth. Based on the results of online pilot study carried out in the Republic of Bashkortostan via Google Form, the authors analyze the relevant questions pf financial behavior of youth. The survey included the questions that allowed determining the process of formation of financial literacy, degree and level of participation of the key social institutions in teaching the younger generation the fundamentals of financial literacy, as well as financial behavior practices that exist in the families of respondents. Emphasis is placed on the analysis of financial literacy of youth, as it is largely determined by the financial literacy of the population, which includes knowledge, practical skills and skills, and attitudes of citizens in the field of personal finance. The research interest is also focused on the differences in financial behavior of Z generation (zoomers) and Y generation (millennials). The author determines insufficient level of teaching financial literacy at all stages of education, which entails irrational (risky) financial behavior among youth. Half of the respondents can be regarded as poor people; however, they do not seek for solution to change the situation, such as getting themselves a job. As a positive trend, the author notes noted that in a certain way modern youth is concerned about the future and tries to develop the strategies of financial behavior (mostly medium-term and short-term).

scholarly journals Reservoir prediction of shallow braided delta front by Comprehensive Prediction Error Filtering Analysis

2021 ◽  
Vol 245 ◽  
pp. 01029
Author(s):  
Wenjuan Li
Keyword(s):  
High Resolution ◽  
Sequence Stratigraphy ◽  
Prediction Error ◽  
Oil Field ◽  
Delta Front ◽  
Reservoir Prediction ◽  
Base Level ◽  
High Resolution Sequence Stratigraphy ◽  
Fifth Order ◽  
Filter Analysis

For a more accurate reservoir prediction of braided delta front, the method of High Resolution Sequence Stratigraphy was adopted in Moxizhuang Oil Field with the assistance of Comprehensive Prediction Error Filter Analysis. J1s2 was divided into 2 fifth-order base-level cycles, 5 sixth-order base-level cycles, with the turnaround surfaces of base-level rise to fall, and time-equal correlation of shallow braided delta front was achieved. Through study of microfacies correlation in High Resolution Sequence Stratigraphy frame, it is apparent that base-level cycles control microfacies distribution, and furthermore reservoir distribution: reservoirs around turnaround surface of base-level falling to rising are thick and laterally connected, while reservoirs near the middle of base-level falling and base-level rising are relatively thinner and less laterally connected, and reservoirs close to the beginning of base-level falling and the end of base-level rising are undeveloped.

Analysis of High-Frequency Sequence Stratigraphy Architecture of Putaohua Oil Layer in Sanzhao Sag of Songliao Basin

2013 ◽  
Vol 868 ◽  
pp. 177-180 ◽  
Author(s):  
Zheng Li ◽  
Shi Zhong Ma ◽  
Yu Sun ◽  
Jin Yan Zhang
Keyword(s):  
High Resolution ◽  
Sequence Stratigraphy ◽  
High Frequency ◽  
Songliao Basin ◽  
The South ◽  
Medium Term ◽  
Short Term ◽  
Base Level ◽  
Frequency Sequence ◽  
High Resolution Sequence Stratigraphy

Using high-resolution sequence stratigraphy theory and its technology, based on 22 well cores and 4 256 logging data, interface types and characteristics of different grades the base-level cycle in Putaohua oil layer of Sanzhao Sag was systematically analyzed, and Putaohua oil layer is divided into 1 medium-term base level cycle, 4 short-term base level cycles, 8 super-short-term base level cycles, established high-resolution sequence strata framework, and proposed sequence stratigraphy model of middle super-short-term base level cycles meridionally grado-thin and up to vanish with syndepositional structure lifting control in the south of Putaohua oil layer. Sandstone is offlap Pinch-out in the upper of Putaohua oil layer, and Sandstone is onflap Pinch-out in the under of Putaohua oil layer from north to south.

Is money the creation of the state or the market? (On the “modern monetary theory” as described in the textbook by W. Mitchell, L. R. Wray and M. Watts “Macroeconomics”)

2020 ◽  
pp. 121-134
Author(s):  
S. A. Andryushin
Keyword(s):  
Public Debt ◽  
Scientific Community ◽  
Full Employment ◽  
Term Effect ◽  
Scientific Concept ◽  
Monetary Theory ◽  
Left Wing ◽  
Medium Term ◽  
Short Term ◽  
Stimulation Of

In 2019, a textbook “Macroeconomics” was published in London, on the pages of which the authors presented a new monetary doctrine — Modern Monetary Theory, MMT, — an unorthodox concept based on the postulates of Post-Keynesianism, New Institutionalism, and the theory of Marxism. The attitude to this scientific concept in the scientific community is ambiguous. A smaller part of scientists actively support this doctrine, which is directly related to state monetary and fiscal stimulation of full employment, public debt servicing and economic growth. Others, the majority of economists, on the contrary, strongly criticize MMT, arguing that the new theory hides simple left-wing populism, designed for a temporary and short-term effect. This article considers the origins and the main provisions of MMT, its discussions with the mainstream, criticism of the basic tenets of MMT, and also assesses possible prospects for the development of MMT in the medium term.

scholarly journals Long-Term Data Traffic Forecasting for Network Dimensioning in LTE with Short Time Series

Electronics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1151
Author(s):  
Carolina Gijón ◽  
Matías Toril ◽  
Salvador Luna-Ramírez ◽  
María Luisa Marí-Altozano ◽  
José María Ruiz-Avilés
Keyword(s):  
Time Series ◽  
Deep Learning ◽  
Time Series Analysis ◽  
Data Traffic ◽  
Medium Term ◽  
Short Term ◽  
Traffic Forecasting ◽  
Series Analysis ◽  
Radio Planning

Network dimensioning is a critical task in current mobile networks, as any failure in this process leads to degraded user experience or unnecessary upgrades of network resources. For this purpose, radio planning tools often predict monthly busy-hour data traffic to detect capacity bottlenecks in advance. Supervised Learning (SL) arises as a promising solution to improve predictions obtained with legacy approaches. Previous works have shown that deep learning outperforms classical time series analysis when predicting data traffic in cellular networks in the short term (seconds/minutes) and medium term (hours/days) from long historical data series. However, long-term forecasting (several months horizon) performed in radio planning tools relies on short and noisy time series, thus requiring a separate analysis. In this work, we present the first study comparing SL and time series analysis approaches to predict monthly busy-hour data traffic on a cell basis in a live LTE network. To this end, an extensive dataset is collected, comprising data traffic per cell for a whole country during 30 months. The considered methods include Random Forest, different Neural Networks, Support Vector Regression, Seasonal Auto Regressive Integrated Moving Average and Additive Holt–Winters. Results show that SL models outperform time series approaches, while reducing data storage capacity requirements. More importantly, unlike in short-term and medium-term traffic forecasting, non-deep SL approaches are competitive with deep learning while being more computationally efficient.

scholarly journals Multidimensional assessment of women after severe maternal morbidity: the COMMAG cohort study

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e041138
Author(s):  
Elton C Ferreira ◽  
Maria Laura Costa ◽  
Rodolfo C Pacagnella ◽  
Carla Silveira ◽  
Carla B Andreucci ◽  
...  
Keyword(s):  
Cohort Study ◽  
Sexual Function ◽  
Screening Test ◽  
Maternal Morbidity ◽  
Severe Maternal Morbidity ◽  
Medium Term ◽  
Short Term ◽  
Multidimensional Assessment ◽  
Index Pregnancy ◽  
Sf 36

ObjectivesTo perform a multidimensional assessment of women who experienced severe maternal morbidity (SMM) and its short-term and medium-term impact on the lives and health of women and their children.DesignA retrospective cohort study.SettingA tertiary maternity hospital from the southeast region of Brazil.ParticipantsThe exposed population was selected from intensive care unit admissions if presenting any diagnostic criteria for SMM. Controls were randomly selected among women without SMM admitted to the same maternity and same time of childbirth.Primary and secondary outcome variablesValidated tools were applied, addressing post-traumatic stress disorder (PTSD) and quality of life (SF-36) by phone, and then general and reproductive health, functioning (WHO Disability Assessment Schedule), sexual function (Female Sexual Function Index (FSFI)), substance abuse (Alcohol, Smoking and Substance Involvement Screening Test 2.0) and growth/development (Denver Developmental Screening Test) of children born in the index pregnancy in a face-to-face interview.ResultsAll instruments were applied to 638 women (315 had SMM; 323 were controls, with the assessment of 264 and 307 children, respectively). SF-36 score was significantly lower in the SMM group, while PTSD score was similar between groups. Women who had SMM became more frequently sterile, had more abnormal clinical conditions after the index pregnancy and a higher score for altered functioning, while proportions of FSFI score or any drug use were similar between groups. Furthermore, children from the SMM group were more likely to have weight (threefold) and height (1.5 fold) for age deficits and also impaired development (1.5-fold).ConclusionSMM impairs some aspects of the lives of women and their children. The focus should be directed towards monitoring these women and their children after birth, ensuring accessibility to health services and reducing short-term and medium-term repercussions on physical, reproductive and psychosocial health.

High Resolution Sequence Stratigraphic Frameworks Research in the XII Group of the Member III of Qing Shankou Formation in the Qian'an Oilfield

2013 ◽  
Vol 339 ◽  
pp. 728-731 ◽  
Author(s):  
Cun Lei Li ◽  
Lei Qin ◽  
Xue Li ◽  
Xi Long Zhang
Keyword(s):  
High Resolution ◽  
Stratigraphic Correlation ◽  
Short Term ◽  
Middle Term ◽  
Sequence Stratigraphic ◽  
Base Level ◽  
Mud Logging ◽  
High Resolution Sequence Stratigraphy ◽  
Symmetric Structures

With the instruction of the high resolution sequence stratigraphy and sedimentology theory, and the comprehensive application of 11 wells core, more than 800 mud logging and log data, high resolution sequence stratigraphic characteristics research in the XII Group of the Member III of Qing Shankou Formation in the Qianan oilfield has been finished. The results show that the study area can be divided into one middle-term base level cycle and five short-term base level cycles. The only sequence structure of middle term cycle is (B type) and the short term cycle mainly consists of B types meanwhile there are small mounts of upward deepening structures (A type) and symmetric structures (C type). Based on the classification of base-level cycles, fine stratigraphic correlation is conducted by using isochronous cycle correlations. In addition, 15 high resolution sequence stratigraphic frameworks are established which unify the study area and provide the solid geological basis for the sandstone distribution, the identification of mainly oil-bearing sand bodies and potential oil reservoirs.

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