天然气含水量计算公式评价
Evaluation on Calculation Formulas for Water Content in Natural Gas
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- 引用格式:
-
陈思锭,付剑梅,张哲.天然气含水量计算公式评价[J].天然气与石油,2012,30(6):0.doi:
.Evaluation on Calculation Formulas for Water Content in Natural Gas[J].Natural Gas and Oil,2012,30(6):0.doi:
- DOI:
- 作者:
- 陈思锭1 付剑梅1 张 哲2
- 作者单位:
- 1.西南石油大学石油工程学院，2.中国石油规划总院油气田地面工程规划研究所
- 关键词:
- 天然气；含水量；水露点；公式；方法；评价
Natural gas； Water content； Water dew point； Formula； Methed； Evaluation
- 摘要:
- 含水量是管输天然气气质参数中一项重要的理化指标，其计算值的准确度直接影响天然气开采、集输与处理等过程中工艺计算的正确性。对目前国内外主要天然气含水量计算公式进行了归纳分析，利用文献报道的实测数据，采用六种统计指标和一个相对性能系数对计算公式进行基于误差分析的综合评价，筛选出计算精度相对较高的Bahadori、Bukacek-Saul-Wagner和宁英男等公式。建议在组成不太明确时使用Bahadori公式来计算酸气含量较低的天然气含水量。
Water content is one of significant physicochemical indexes of temperament parameters of natural gas transported by pipeline and accuracy of its calculated values will directly affect the accuracy of process calculations in natural gas exploitation， gathering and transportation. Summarized and analyzed are principal correlation formulas used for natural gas water content at home and abroad. Based on practical data in some publications， six kinds of statistical indexes and one relative performance coefficient are applied to conduct overall evaluation based on error analysis， selected are such correlation formulas with relative higher calculation accuracy as Bahadori and Bukacek-Saul-Wagner， etc. and it is suggested that Bahadori is applied to calculate water content of natural gas with lower acid gas content in undefined gas composition conditions.
