基于TOPSIS方法的油气井射孔参数优化决策模型研究  

Based decision-making model to optimize perforating parameters in oil and gas wells

作　　者：叶翠莲[1] 刘啸峰[1] 王毅[1] YE Cuilian;LIU Xiaofeng;WANG Yi(Petroleum Engineering Technology Institute,Sinopec Southwest Oil&Gas Company,Deyang,Sichuan 618000,China)

机构地区：[1]中国石化西南油气分公司石油工程技术研究院,四川德阳618000

出　　处：《天然气技术与经济》2024年第5期36-42,共7页Natural Gas Technology and Economy

摘　　要：为了提升油气井的产能和经济效益,对射孔参数进行了深入研究,通过分析射孔过程的物理机理及其影响因素,提出了一套综合考虑套管安全、射孔孔眼参数和射孔通道表皮系数的多属性评价指标体系,全面评估了射孔参数对油气井安全和效益的影响;在此基础上,研究构建了一种基于TOPSIS的多属性决策模型,用于优化射孔参数选择。该模型通过计算各指标的权重和排序,可以有效筛选出最佳射孔参数组合。研究结果表明:①所提出的TOPSIS模型能够有效地优化射孔参数,提高射孔效率;②该模型确保了油气井的安全运行,降低了操作风险;③应用该模型显著提升了油气井的经济效益。这些成果验证了模型的有效性和优越性,与传统的经验法和试井法相比,提供了更为科学的决策支持。结论认为,该研究成果为油气井射孔参数的优化提供了一种新的科学决策方法,有助于指导实际的射孔操作,优化完井工艺,提高生产性能,为油气井经济效益的提升提供了理论支持和实践指导。In this study,perforating parameters were discussed to increase both productivity and economic benefits in oil and gas wells.And an evaluation index system with multiple attributes,including casing safety as well as perforating bore parameters and skin coefficient in perforating channel,was proposed after analyzing physical mechanisms and their controls on the perforation.And then the parameter impact on both safety and efficiency was fully accessed.Additionally,a decision-making model was set up on the basis of one Technique for Order Preference by Similarity to Ideal Solution(TOPSIS)to optimize the parameters.It can effectively calculate individual parameter's weight,put them in order,and find out the best parameter combination.Results show that(i)the proposed TOPSIS-based model can optimize perforating parameters and improve perforating efficiency;(ii)it ensures the wells in safe operation and reduces operational risks;and(iii)its application significantly raises economic benefits.All above results prove this model's availability and superiority.Compared with empirical and traditional well-testing methods,this model provides more assists in scientific decision-making.In conclusion,the research results suppose a new scientific decision-making methodology to optimize perforating parameters,which is helpful to guide practical perforation,optimize completion,advance production performance,and offer theoretical support and actual guidance for benefit increase.

关 键 词：射孔 相位角 射孔密度 射孔长度 套管剩余强度 表皮效应 

分 类 号：TE257.1[石油与天然气工程—油气井工程]