摘要
建立了防砂方法适应条件知识库和技术评价综合模糊评价模型。用于优选最佳防砂方法的综合评价指标考虑了技术评价因子、有效期、净现值、投入产出比以及投资回收期等。该方法克服了以往防砂方法不确定因素对评价结果产生较大影响的缺点 ,可以用来针对单井或区块选择最佳防砂方法。通过修改适应条件知识库 ,使模型具有可开放性和可维护性 ,实例验证优选结果合理。
Knowledge database is built which contains the adaptability conditions of all sand control methods. A new integrated model for technical assessment is evolved by fuzzy mathematics theory of sand control methods. Integrated assessment indices, which are used in selecting the optimum sand control methods, include technical assessment factor, validity period, net present value, inputoutput ratio and payback period etc. This method can get rid of the considerable effect of some uncertain factors on the assessment result from the previous methods, and the best sand control method may be selected for single well or the whole block. The model will possess the features of openness and serviceability after the knowledge database is revised. Case study indicates that optimized result is reasonable.
出处
《油气地质与采收率》
CAS
CSCD
2003年第1期68-70,共3页
Petroleum Geology and Recovery Efficiency
关键词
防砂方法
综合评价模型
应用
模糊集
经济评价
油气井
sand control , method optimization,fuzzy assessment,fuzzy set,economic evaluation,mathematical model
