摘要
根据里群等实测的高含H2S天然气偏差系数Z值,利用非整数幂多项式拟合方法,建立了新的高含H2S天然气偏差系数计算模型。利用新模型和Dranchuk-Abu-Kassem-Wichert-Aziz(DAK-W-A)模型对实测偏差系数进行了拟合计算。与实验值对比结果表明,新模型平均相对误差为0.276%,最大相对误差为2.734%,精度明显高于DAK-W-A模型,且具有计算快速、容易进行微分积分运算等特点。
The development of new model for calculation of H2S-rich natural gas deviation factor is based on the deviation factor Z value measured by Li Qun,et al.and non-integral power polynomial fitting method.The measured deviation factor is calculated by simulation using this new model and Dranchuk-Abu-Kassem-Wichert-Aziz model.The comparison results with tested data show that the new model is in good accordance with experimental Z value,with average relative error of 0.276% and maximal relative error of 2.734%,obviously higher than that of Dranchuk-Abu-Kassem-Wichert-Aziz model in accuracy.In addition,the new model is characterized by quick calculation and convenient differential-integral calculation.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2010年第5期524-526,共3页
Xinjiang Petroleum Geology
基金
国家863计划项目(2007AA062209)
