The Application of Multistage Fuzzy Comprehensive Evaluation Mathematics Method for the Analysis of Determining the Remaining Oil in Ultra-High Water-Cut Oilfield

You, Chun Mei; Wang, Jia Chun; Sun, Xiao Jun; Lv, Xian Hu; Song, Shao Ming

doi:10.4028/www.scientific.net/amr.926-930.4429

Cited by 3 publications

(2 citation statements)

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“…His findings indicate that a miner who spent twenty years working underground would face a one in thirty chance of dying in an occupational accident, and the most important cause of fatalities was falls of ground [22]. You et al analyzed the comprehensive classification reservoir's producing conditions during the ultra-high water cut construction phase based on a multilevel FCE evaluation mathematics method for solving the problem of analyzing remaining oil in different kinds of reservoirs [23]. These studies do not adopt the analyzed AHP-FCE method in their risk evaluation analyses, and consequently, they face some flaws such as subjectivity in determining the weight vector of the evaluation criteria, rigid cutting of the membership degree of the risk evaluation grade, etc.…”

Section: Introductionmentioning

confidence: 99%

Safety Risk Assessment and Management of Panzhihua Open Pit (OP)-Underground (UG) Iron Mine Based on AHP-FCE, Sichuan Province, China

Deng

et al. 2023

Sustainability

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In order to prevent accident cases and improve safety in the mining industry, a safety risk assessment and management process is needed to identify and respond to high-risk hazards in mines. This study aims to investigate the main safety risks factors influencing the typology of accidents in the Panzhihua OP-UG iron ore mine with the concept of minimizing them, reducing injuries and fatalities, and improving prevention policies. A methodology based on the analytic hierarchy process and fuzzy comprehensive evaluation (AHP-FCE) is applied to conduct a study on the assessment and evaluation of mine safety risks. Upon investigating the safety situation at the mine site, 85 risk factors were identified, of which 49 factors were considered to be non-threatening and therefore compatible with existing control measures. The remaining potential hazards, altogether 36 factors, were ultimately categorized into six major specific groups. A mine safety index system and safety risk evaluation model are established to support the evaluation process. The results show that the overall risk level of the Panzhihua OP-UG iron mine is at a medium level with a score of 86.5%. Appropriate risk management measures were recommended for each risk factor from the perspectives of theoretical analysis, safety system optimization of mine technology, disaster prevention and control of slope failure, etc. Finally, this research serves as a great industrial value and academic significance to provide technical support for the safety production of mining enterprises. Hence, the FCE method can serve as a technique to accurately evaluate the impact of iron mine risk.

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Section: Introductionmentioning

confidence: 99%

Safety Risk Assessment and Management of Panzhihua Open Pit (OP)-Underground (UG) Iron Mine Based on AHP-FCE, Sichuan Province, China

Deng

et al. 2023

Sustainability

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“…Zheng et al (2011) established the reservoir evaluation index system by fuzzy comprehensive evaluation method based on water flooding reservoir characteristics and influential factors. You et al (2014) analyzed the comprehensive classification reservoir's producing conditions during the ultra-high water cut developing phase based on multilevel fuzzy comprehensive evaluation mathematics method. Moreover, they established a quantitative evaluation method from geological and developmental factors, which solved the problem of analyzing remaining oil in different kinds of reservoirs and pointed out the quantitative characterization of remaining oil in the ultra-high water cut oilfield.…”

Section: Introductionmentioning

confidence: 99%

Application of fuzzy comprehensive evaluation to evaluate the effect of water flooding development

Zhang

Gao

2018

J Petrol Explor Prod Technol

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Fuzzy comprehensive evaluation (FCE) is a synthetic appraisement method based on fuzzy mathematics, and evaluation result is practical and reliable, therefore, which is widely used in petroleum, construction and many other fields. This paper applies it to the evaluation of water flooding effect of oilfield. This paper introduces the principle of FCE method and the evaluation steps. The method is applied to the evaluation of water flooding development effect, which is helpful to improve the analysis level of oil and gas field development. Compared with the traditional method, this proposed method can reflect the difference of the evaluation units. Meanwhile, the weight vector is gotten by entropy method and analytic hierarchy process (AHP), which making the evaluation results more convincing. Taking W oilfield as an example, the ten factors (e.g., reserves controlled degree of water flooding, reserves producing degree of water flooding, recovery percent of recoverable reserves, water cut, water storage rate, oil recovery rate of residual recoverable reserves, cumulative water injection, maintenance of formation pressure, comprehensive decline rate, water flooding recovery) were evaluated by proposed FCE method. Then the membership matrix is established, and the weight vector is calculated by the entropy method and the AHP. Finally, the evaluation results of the two methods are obtained by fuzzy transformation and are consistent with the actual water flooding effect. Thus, the FEC method can be used as method to accurately evaluate the effect of oil field water flooding.

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Fine classification of ultra-low permeability reservoirs around the Placanticline of Daqing oilfield (PR of China)

Dongqi

Yin

Yazhou

2019

Journal of Petroleum Science and Engineering

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The Application of Multistage Fuzzy Comprehensive Evaluation Mathematics Method for the Analysis of Determining the Remaining Oil in Ultra-High Water-Cut Oilfield

Cited by 3 publications

References 0 publications

Safety Risk Assessment and Management of Panzhihua Open Pit (OP)-Underground (UG) Iron Mine Based on AHP-FCE, Sichuan Province, China

Safety Risk Assessment and Management of Panzhihua Open Pit (OP)-Underground (UG) Iron Mine Based on AHP-FCE, Sichuan Province, China

Application of fuzzy comprehensive evaluation to evaluate the effect of water flooding development

Fine classification of ultra-low permeability reservoirs around the Placanticline of Daqing oilfield (PR of China)

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