Analysis of Inter-Well Correlation in Carbonate Reservoir

2015 ◽  
Vol 1092-1093 ◽  
pp. 1337-1340
Author(s):  
Hang Zhang ◽  
Zhi Ping Li ◽  
Feng Peng Lai

The evaluation of inter-well correlation is an important basis which can instruct engineers to analyze reservoir water-flooding effect, propose the adjustment suggestion. To solve the difficulties of water-flooding evaluation of carbonate reservoir, a new method is proposed based on inter-well connectivity and unascertained math. Firstly, an independent evaluation index system is established before calculating the comprehensive evaluation index weights by the analytic hierarchy process and similarity weight method. Then the Uncertainty measure model is established to evaluate water-flooding effect of well group. This method has been applied in the X oilfield, and good results are gained. The results show that different adjustments should be taken to improve water-flooding effects in different units.

2021 ◽  
Vol 256 ◽  
pp. 01027
Author(s):  
Youzhuo Zheng ◽  
Yu Fu ◽  
Xiaobing Xiao

To utilize the objective information of index data and consider the important role of subjective judgment in the evaluation of distribution automation equipment testing results, a comprehensive evaluation method based on AHP (Analytic Hierarchy Process) and CRITIC (CRiteria Importance Through Intercriteria Correlation) method is proposed. Firstly, an evaluation index system of distribution automation equipment testing results considering seven big indicators and thirty-six small indicators is established. Secondly, AHP and CRITIC method are adopted to solve a practical evaluation problem of distribution automation equipment testing results. The subjective weights of each evaluation index are calculated by AHP, the objective weights of each evaluation index are calculated by the CRITIC method. Then, to achieve the sorting of distribution automation equipment testing results accurately, the comprehensive weights are obtained by combining the two weights. Finally, the analysis and comparison of case studies show that the proposed evaluation index system can accurately reflect the performance of distribution automation equipment and the comprehensive evaluation method of distribution automation equipment testing results which comprehensively considers the subjective comprehensive evaluation results.


2010 ◽  
Vol 156-157 ◽  
pp. 79-83 ◽  
Author(s):  
Jian Yu Chu ◽  
You Po Su

The site selection for earthquake emergency shelter is important to ensure the safety and service ability of shelter in earthquake disaster. It is aim to establish earthquake emergency shelter site evaluation index system, make use of analytic hierarchy process method to determine the index weight, using comprehensive fuzzy evaluation method to evaluate and order the shelters in certain areas, and ultimately select earquake emergency shelters.


2014 ◽  
Vol 955-959 ◽  
pp. 2683-2686
Author(s):  
Zhan Feng Zhou ◽  
Yan Wei Du

According to the decision attributes of green manufacturing and requirements of remanufacturing, an evaluation index system of waste product recycling ability was established, the weight of every level index was determined by using analytic hierarchy process, according to the fuzziness and uncertainty of evaluation index, the recycling ability was evaluated by applying the fuzzy comprehensive evaluation and an example was given. The result shows that the method is simple, accurate and has a good application.


Symmetry ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 847
Author(s):  
Guodong Liu ◽  
Jianjun Zhu ◽  
Xiaodi Liu

The development of the regional economy cannot be separated from the support of regional logistics, as the scientific decisions of regional logistics are helpful to promote the healthy development of the regional economy. The comprehensive evaluation of regional logistics competitiveness is the premise and foundation of regional logistics scientific decision-making; the evaluation index system, evaluation data, and index weight are the key links affecting a comprehensive evaluation. In order to improve the quality of a comprehensive evaluation, the study aims at addressing problems such as the evaluation index system of regional logistics competitiveness being complex and scattered, the normalized distribution of the evaluation data being extremely asymmetric and seriously deviating from the normal distribution, and the logic of calculating index weights by the analytic hierarchy process (AHP) not being accurate. To do this, a triangle model of regional logistics competitiveness is constructed based on Porter’s diamond model, and the evaluation index system of regional logistics competitiveness is refined from the three dimensions of resource supply, logistics service, and market demand. Based on the concept of symmetry theory, a normalization method of segmental mapping with quartiles as multiple reference points is proposed, which improves the distribution rationality, symmetry, and distance discrimination of normalized data. The dynamic index scale is used to determine the scale of the analytic hierarchy process, and the evaluation matrix is constructed based on the importance level grading table; the index weights are directly solved without a consistency check, which improves the logical accuracy of a subjective evaluation. Based on the data of segment mapping, the comprehensive evaluation value of the evaluation object is calculated, and the competitiveness of regional logistics is compared and ranked, which improves the differentiation and consistency of the results. Through the comparative analysis of the calculation results, it was proven that the improvement of the data standardization method is necessary when the range is too large. The method in this paper can make the distribution of data standardization with a range too large closer to the normal distribution. It was found that the ranking of regional logistics competitiveness is highly consistent with the total social logistics, and that the total amount of regional logistics has an important reference value for the competitiveness of regional logistics. The ranking calculated by the indicators and methods in this paper has a certain reference value for regional logistics decision-making.


2014 ◽  
Vol 971-973 ◽  
pp. 2329-2332
Author(s):  
Zhong Lv

In order to evaluate the quality of the air passenger service objectively and accurately, based on analyzing the characteristics of comprehensive evaluation of service level, and applied the theory of Maslow’s hierarchy of need, the evaluation index system of air passenger service quality has been built from six aspects, such as objective, economy, service, quickness, comfort and convenience. The evaluation index weight vector is determined by means of the improved analytic hierarchy process. The fuzzy theory is used for comprehensive evaluation, and the model is analyzed through example. The results show that the evaluation system can effectively reflect the level of air passenger transport service quality and reduce the influence of human factors.


2012 ◽  
Vol 614-615 ◽  
pp. 999-1007
Author(s):  
Zhi Dong Wang ◽  
Ke Li ◽  
Zi Fa Liu

The characteristics of wind power such as wave properties, intermittence, seasonal nature, counter regulation and so on have negative effect on power grid; grid-connected wind power on a scale is limited. To aim at the problem that there lacks quantification evaluation method on grid-connected wind power, an comprehensive evaluation index system concerning safety, adequacy, power quality and economy on the power grid which wind power is accepted. By using current advanced fuzzy interval analytic hierarchy process (FIAHP) , analyzing index such as static stability reserve coefficient, peak margin and transmission reliability margin and so on, coming up with the potential risk, thus on the condition of system safety and steady operation, penetrating power can be maximization, utilization rate improved. At last, analysis of the example proves that the evaluation index system and evaluation method is scientific and feasible.


2011 ◽  
Vol 71-78 ◽  
pp. 399-402
Author(s):  
Jian Wei Zhang ◽  
Min Jie Zhu ◽  
Li Wei Zhang

There is all kinds of risk consisting in every logistic transportation link of construction because of the bigger construction transportation district and the more complex transportation goods, a wide variety, quantity, and so on. Any question in a single of earlier link happened will affect accuracy, security and timeliness of indicator. This paper constructs evaluation index system and evaluation module by Analytical Hierarchy Process (AHP) and Fuzzy Comprehensive Evaluation(FCE).


2011 ◽  
Vol 71-78 ◽  
pp. 4300-4303
Author(s):  
Shi Gui Li ◽  
Xiao Ping Li ◽  
Jing Cheng Liu

Emergency capability is the key to control the development of gas pipeline, reduce the social loss, and protect the safety of city.city gas pipeline emergency capability evaluation index system is set up. The weight of the evaluation index would be analyzed by analytic hierarchy process, and then the fuzzy comprehensive evaluation index could be calculated through the establishment of a multi-level fuzzy comprehensive evaluation matrix. At last, the estimation scale of emergency capability of gas pipeline could be obtained.


2013 ◽  
Vol 869-870 ◽  
pp. 1048-1051 ◽  
Author(s):  
Li Min Ma ◽  
You Jun Li ◽  
Shao Jun Hu

Based on the analysis of the low carbon transition of resource-based city faced obstacles, fully consider the characteristics of resources city, from the construction of the 8 low carbon economic development level of resource type city evaluation index system. From the vertical by calculating its comprehensive evaluation index fuzzy analytic hierarchy process, from the horizontal data envelopment analysis of low carbon economic development level between each resource type city, the longitudinal and transverse analysis results put forward specific proposals are evaluation of resource based city the development of low carbon economy.


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