Recognition of thin interbedded reservoirs in the middle-shallow strata in the Songliao Basin is a great difficulty. In order to resolve this problem, we present a technique for predicting the distribution of thin res...Recognition of thin interbedded reservoirs in the middle-shallow strata in the Songliao Basin is a great difficulty. In order to resolve this problem, we present a technique for predicting the distribution of thin reservoirs using a broad frequency band and ultra high resolution seismic. Based on forward modeling, we recognized that a thin bed seismic reflection is characterized by changing amplitude with changing frequency （amplitude versus frequency, AVF）. We calculate the thickness of thin reservoirs from their AVF characteristics and predict the distribution of thin bed reservoir using broad frequency band and ultra high resolution seismic. The technique has been applied in the 3D seismic area of Zhaoyuan in the northern part of the Songliao Basin. The seismic resolution is increased by two or three times over that of conventional seismic and many thin reservoirs have been identified. The technique has extensive application to the exploration and development of oil and gas, such as optimizing the location of exploration wells, the design of wells （especially horizontal wells）, choice of production test layers, analyzing reservoir continuity in development wells, and so on.展开更多
The practice and research on the establishment of digital course environment and the reform of learning way breaks through the integration of information technology and teaching courses. Digital course environment pro...The practice and research on the establishment of digital course environment and the reform of learning way breaks through the integration of information technology and teaching courses. Digital course environment promotes the teaching interest and becomes the learning under the support of learning terminal, which must make students happy. The digitalization of teaching materials, platform of learning and learning according to requirements promotes the establishment of happy class. Establishment of learning environment is the basis of realizing the reform of learning and teaching ways. With the rapid development of information technology, intelligence learning is the necessary outcome of deep integration with education learning.展开更多
The purpose of this paper is to advance the interpretation of the Du Pont Equation, which is commonly used in the financial statements analysis of corporations. The paper makes a special interpretation of the three te...The purpose of this paper is to advance the interpretation of the Du Pont Equation, which is commonly used in the financial statements analysis of corporations. The paper makes a special interpretation of the three terms which appear in the Du Pont Equation that provides an understanding of the overall financial standing of the corporation under consideration. As a result of this interpretation, the order in which f＇mancial statements analysis is commonly performed should be reversed. That is, in financial statements analysis, one should start with the analysis of the Du Pont Equation, to gain an overall understanding of the financial situation of the corporation; and then, perform the ratio analysis, to gain a detailed understanding of the financial situation of the corporation. This order of analysis is in contrast to the order in which financial statements analysis is commonly performed, i.e., first, the ratio analysis is performed, and then, the Du Pont Equation is analyzed.展开更多
文摘Recognition of thin interbedded reservoirs in the middle-shallow strata in the Songliao Basin is a great difficulty. In order to resolve this problem, we present a technique for predicting the distribution of thin reservoirs using a broad frequency band and ultra high resolution seismic. Based on forward modeling, we recognized that a thin bed seismic reflection is characterized by changing amplitude with changing frequency （amplitude versus frequency, AVF）. We calculate the thickness of thin reservoirs from their AVF characteristics and predict the distribution of thin bed reservoir using broad frequency band and ultra high resolution seismic. The technique has been applied in the 3D seismic area of Zhaoyuan in the northern part of the Songliao Basin. The seismic resolution is increased by two or three times over that of conventional seismic and many thin reservoirs have been identified. The technique has extensive application to the exploration and development of oil and gas, such as optimizing the location of exploration wells, the design of wells （especially horizontal wells）, choice of production test layers, analyzing reservoir continuity in development wells, and so on.
文摘The practice and research on the establishment of digital course environment and the reform of learning way breaks through the integration of information technology and teaching courses. Digital course environment promotes the teaching interest and becomes the learning under the support of learning terminal, which must make students happy. The digitalization of teaching materials, platform of learning and learning according to requirements promotes the establishment of happy class. Establishment of learning environment is the basis of realizing the reform of learning and teaching ways. With the rapid development of information technology, intelligence learning is the necessary outcome of deep integration with education learning.
文摘The purpose of this paper is to advance the interpretation of the Du Pont Equation, which is commonly used in the financial statements analysis of corporations. The paper makes a special interpretation of the three terms which appear in the Du Pont Equation that provides an understanding of the overall financial standing of the corporation under consideration. As a result of this interpretation, the order in which f＇mancial statements analysis is commonly performed should be reversed. That is, in financial statements analysis, one should start with the analysis of the Du Pont Equation, to gain an overall understanding of the financial situation of the corporation; and then, perform the ratio analysis, to gain a detailed understanding of the financial situation of the corporation. This order of analysis is in contrast to the order in which financial statements analysis is commonly performed, i.e., first, the ratio analysis is performed, and then, the Du Pont Equation is analyzed.
