The Comprehensive Evaluation Method Based on GIS of Oil well Casing Damage

2013 ◽  
Vol 807-809 ◽  
pp. 2595-2601
Author(s):  
Wei Bin Xu ◽  
Qing Jie Zhu ◽  
Hai Bo Jia
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Influence Factors ◽  
Weighted Average ◽  
Combination Method ◽  
Oil Well ◽  
Oil And Gas Development ◽  
Multi Criteria Evaluation ◽  
Casing Damage ◽  
Ordered Weighted Average

Oil well casing damage is one of the security problems in petroleum engineering, it should be paid more attention in oil and gas development. Influence factors of oil well casing damage are very complicated, and the evaluation criteria of each influence factors are different. Therefore, for the assessment of casing damage, should be based on a comprehensive engineering and petroleum geology of the argument, using multi-criteria evaluation method to implement from the safety point of view. The development of multi-criteria evaluation method based on GIS oil well casing damaged isnt only consider the relative importance of each influence factor, but also fully consider the various factors of space walks and order of importance. With the help of IDRISI software, Jinzhou oil production plant in the 25 block as an example, calculating order weights and criteria weights, the comprehensive evaluation of damage to the casing pipe of oil well is made. By comparison of weighted linear combination method and the ordered weighted average (OWA) method, analyzes the ordered weighted average method advantage.

scholarly journals Weight Analysis of Influence Factors and Potential Evaluation Method for Chemical Combination Flooding

2018 ◽  
Vol 53 ◽  
pp. 01022
Author(s):  
LIU Zhaoxia ◽  
WANG Qiang ◽  
MA Desheng ◽  
Gaoming ◽  
LIU Wanlu
Keyword(s):  
Evaluation Method ◽  
Influence Factor ◽  
Comprehensive Evaluation ◽  
Influence Factors ◽  
Prediction Method ◽  
Weight Coefficient ◽  
New Method ◽  
Chemical Flooding ◽  
Evaluation Score ◽  
Chemical Combination

In this paper, the weight coefficient of influencing factors for chemical combination flooding is determined by using grey correlation theory. A calculation method for comprehensive evaluation score of chemical combination flooding is established. The influence factor grading and weight grading are combined in this method. By collecting and analysing chemical combination flooding field tests, a prediction method for chemical combination flooding is established by the exponential regression. It reflects the relationship between EOR of the chemical combination flooding and the comprehensive evaluation score. The new method is applied in 6 different reservoirs to evaluate the effect of chemical flooding. The new method determines the weight coefficient of influence factors for chemical combination flooding. It can quickly predict EOR factor of chemical flooding to provide a basis for chemical flooding planning in the field.

Comprehensive Evaluation Model of Resource Allocation for Construction Programme

2014 ◽  
Vol 584-586 ◽  
pp. 2215-2219
Author(s):  
Yi Xuan Wang ◽  
Ying Wei Ren ◽  
Yong Heng Yao
Keyword(s):  
Resource Allocation ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Weighted Average ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Engineering Construction ◽  
Correlation Degree ◽  
Comprehensive Evaluation Model

According to the characteristics of resource allocation for engineering construction programme, the comprehensive evaluation model of resource allocation rationality for programme is established with the combination of analytic hierarchy process and fuzzy comprehensive evaluation method. The rationality of resource allocation for programme is evaluated objectively based on the assessment of correlation degree between monomer project and the programme and the evaluation of resource allocation rationality for monomer projects. And the evaluation results have been analyzed and sorted through the principle of weighted average.

Efficiency Evaluation of Resources Value Flow Based on Circular Economy for Coal-Fired Power Plant

2012 ◽  
Vol 472-475 ◽  
pp. 3125-3128
Author(s):  
Zhi Ming Xie ◽  
Guo Hui Lan ◽  
Xuan Yi
Keyword(s):  
Power Plant ◽  
Circular Economy ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Influence Factors ◽  
Application Process ◽  
Resource Value ◽  
Comprehensive Evaluation Method ◽  
Value Flow

This paper applies extension comprehensive evaluation method to evaluate resources value flow (RVF) efficiency of coal-fired power plant (CFPP) in the development of circular economy, analyzes the influence factors of resource value efficiency level, and establishes the matter-element evaluation model of RVF efficiency for CFPP. It also illustrates the application process of extension comprehensive evaluation method through case studies, simply reflecting the efficiency level of RVF in CFPP.

The Environmental Impact Assessment of Power Transmission Project Based on Fuzzy Theory

2011 ◽  
Vol 281 ◽  
pp. 195-200
Author(s):  
He Rui Cui ◽  
Da Fang Qiu ◽  
Lu Chen
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Evaluation Method ◽  
Power Transmission ◽  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Weighted Average ◽  
Fuzzy Comprehensive Evaluation ◽  
Environment Impact

As environment impact has become the important constraining factors to the power transmission project, so it is necessary to expand the scope of environmental impact assessment (EIA) to provide some information to relevant departments for decision-making. This paper selected fuzzy comprehensive evaluation method to assess the environmental impact, which is fit for the uncertainties of the EIA. The results show that the project's impact on the environment is satisfactory and it still exists insufficient in environment protection and the improvement is still potential. The innovation of this paper is to assign the comprehensive evaluation vector by considering the weighted average confidence degree of the comments set-valued, so it can calculate the assessment values more accurately.

Evaluation of APP User’s Satisfaction Based on Fuzzy AHP

2014 ◽  
Vol 631-632 ◽  
pp. 1215-1218
Author(s):  
Ya Ran Chen ◽  
San Xing Cao
Keyword(s):  
Rapid Growth ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Ahp ◽  
Influence Factors ◽  
Evaluation Index ◽  
Fuzzy Mathematics

In recent years the number of APP users rapid growth, so the research on APP user’s satisfaction is particularly important.This paper makes analysis and research on the evaluation method of APP user’s satisfaction, in view of the different influence factors of users in the use of the APP, we put forward the evaluation index of APP user’s satisfaction set, and used AHP to determine the weight of evaluation index, finally we get the asessment for the APP user’s satisfaction situation through the fuzzy mathematics comprehensive evaluation model.In the end of the paper, we can get a conclusion that the method is objectivity, practicability and accuracy.

scholarly journals Application Of Comprehensive Evaluation Method In Oil Well Classification

2019 ◽  
Vol 131 ◽  
pp. 01061
Author(s):  
Fada Huang ◽  
Yifang Tang ◽  
Liang Huang ◽  
Haitao Zhang
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Oil Production ◽  
Evaluation Methods ◽  
Variation Method ◽  
Oil Well ◽  
Consistency Test ◽  
Evaluation Result ◽  
Control Factors ◽  
Combined Evaluation

China’s oil resources are very rich, but the effect of oil exploitation is not good. Precise prediction of oil production plays an extremely important role in formulating a reasonable oil planning plan and determining the direction of investment. In order to improve the accuracy of oil well exploitation, it is necessary to establish a scientific oil production forecasting system. First, pre-treatment research on the data of Baikouquan Oilfield to ensure the quality of oilfield data. Secondly, the main controlling factors affecting the production of oil wells are analyzed, and the single evaluation is carried out by the coefficient of variation method, the entropy method and the mean square error method. Then, the pre-examination test of the consistency test is performed on the single evaluation result, and the combination of the evaluation methods is selected. The combined evaluation method is the average method, and the fuzzy Borda method. It is again tested whether the combined evaluation result has passed the consistency test. After the consistency test, the sum of the squares of the errors of the three combined evaluations is calculated, and the optimal one is optimized. The combined evaluation method was used for the second combination evaluation, and the results of all the evaluation methods were compared to observe whether the combined evaluation results were effective, and 8 main control factors were analyzed and screened. Finally, the main control factor data analyzed by comprehensive evaluation is used for discriminant analysis, and the fitting effect is compared. It is found that the fitting results are basically consistent with the data of the oilfield site, indicating that the results of the main control factors analyzed by the comprehensive evaluation are better. The prediction accuracy meets the engineering requirements and is of great significance for the prediction of on-site oilfield production.

scholarly journals A New Uncertainty Evaluation Method and Its Application in Evaluating Software Quality

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Jiqiang Chen ◽  
Litao Ma ◽  
Chao Wang ◽  
Hong Zhang ◽  
Jie Wan
Keyword(s):  
Software Quality ◽  
Average Method ◽  
Evaluation System ◽  
Uncertainty Theory ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Weighted Average ◽  
Comprehensive Evaluation Method ◽  
Weighted Average Method ◽  
Uncertain Variables

Uncertainty theory is a branch of axiomatic mathematics dealing with experts’ belief degree. Considering the uncertainty with experts’ belief degree in the evaluation system and the different roles which different indices play in evaluating the overall goal with a hierarchical structure, a new comprehensive evaluation method is constructed based on uncertainty theory. First, index scores and weights of indices are described by uncertain variables and evaluation grades are described by uncertain sets. Second, weights of indices with respect to the overall goal are introduced. Third, a new uncertainty comprehensive evaluation method is constructed and proved to be a generalization of the weighted average method. Finally, an application is developed in evaluating software quality, which shows the effectiveness of the new method.

scholarly journals Conflicting Values in Rural Planning: A Multifunctionality Approach through Social Multi-criteria Evaluation

2018 ◽  
Author(s):  
Itziar Barinaga-Rementeria ◽  
Iker Etxano ◽  
Oihana García
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Basque Country ◽  
Forest Policy ◽  
Local Character ◽  
Territorial Planning ◽  
Multi Criteria Evaluation ◽  
Trade Offs ◽  
Multiple Dimensions ◽  
Development Alternatives

The planning of rural land depends to a large extent on the agrarian and forestry development model agreed upon for it. Within the framework of agrarian multifunctionality, to evaluate different development alternatives and their effect on territorial planning, its multiple dimensions must be considered as well as the interests and needs of the stakeholders. This work thus addresses the comprehensive evaluation of development alternatives for the rural area of a municipality of the Basque Country (Spain) through the implementation of a multi-criteria evaluation method with social participation. The results show, firstly, the existence of trade-offs between the functions to be promoted in the various development models evaluated. Secondly, the results indicate the need to reverse recent trends in the sector and the convenience of moving towards an agro-livestock model of greater ecological and local character, independently of the followed forest model. In fact, the evaluation carried out also reveals, thirdly, the existence of more or less latent conflicts, in particular with regards to forest policy.

Assessments on Fire and Explosion of Petrochemical Wharf Storage Tank Area Using DOW Method and Fuzzy Comprehensive Evaluation Model

2014 ◽  
Vol 638-640 ◽  
pp. 1986-1992 ◽  
Author(s):  
Shi Tao Peng ◽  
Yi Sun ◽  
Ran Zhou ◽  
Xiao Li Wang ◽  
Wen Ling Guan
Keyword(s):  
Storage Tank ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Weighted Average ◽  
Fuzzy Comprehensive Evaluation ◽  
Weight Vector ◽  
Risk Level ◽  
Entropy Weight ◽  
Fire And Explosion

Based on the features of fire and explosion accidents in petrochemical wharf storage tank area, the DOW method and fuzzy comprehensive evaluation method were applied to evaluate risk of fire and explosion. First of all, DOW method was employed to evaluate the hazard of fire and explosion of petrochemical wharf storage tank area preliminarily and risk indexes of various tanks were obtained. Then, 5 first-level and 24 second-level indexes were identified by the fuzzy mathematics, in which the entropy weight method was introduced to determine weight vector of arrangement analysis, and applied to an actual risk evaluation for a petrochemical wharf storage tank area to determine fuzzy sets. On the basis of the weighted average method, the risk level is medium. Arranges the second-level indexes, and the main factors affecting the accident were concluded,including the violation rate of labor discipline, characteristics of hazardous materials, fire facilities, safety checks, operation of the security emergency response system and so on.

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