气田开发

几种天然气偏差因子计算方法的适用性评价

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  • (中国石油塔里木油田分公司勘探开发研究院,新疆 库尔勒 841000)
阳建平(1974-),男,重庆开县人,工程师,主要从事气田开发研究工作.

收稿日期: 2006-08-14

  修回日期: 2006-12-27

  网络出版日期: 2008-06-20

APPLICABILITY ESTIMATION OF FOUR METHODS OF CALCULATING THE DEVIATION FACTOR OF NATURAL GAS

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  • Tarim Oilfield Company, PetroChina, Korla 841000, China

Received date: 2006-08-14

  Revised date: 2006-12-27

  Online published: 2008-06-20

摘要

天然气偏差因子是气藏工程计算中一项相当重要的参数,多采用Standing-Katz图版或经验公式求取,其中图版法人工读值误差较大且不便于计算机应用,而各种经验公式的计算精度和适用范围又难以确定。针对以上难点,采用数字化软件对Standing-Katz图版进行了数字化处理,并以该图版为参照,对目前工程计算最常用的4种经验公式的计算精度和有效适用范围进行了分析和评价,优选出了计算精度高的经验公式,为研究人员的使用提供了依据。


本文引用格式

阳建平,肖香姣,张峰,王海应 . 几种天然气偏差因子计算方法的适用性评价[J]. 天然气地球科学, 2007 , 18(1) : 154 -157 . DOI: 10.11764/j.issn.1672-1926.2007.01.154

Abstract

The deviation factor of natural gas is a great significant parameter for the gasreservoir engineering calculation, which is mainly obtained by the Standing-Katz graphic solution or empirical formula calculation. The graphic solution is with great deviation when the parameters are manually read and is not convenient for computer application. The precision and applicability of the empirical formula calculation are difficult to confirm. To resolve the shortcomings mentioned above, firstly we digitize the Standing-Katz graph with digital software, then with the digital graph we analyze and evaluate the calculations' precision and application range of the 4 kinds of empirical formulas which are widely used for thepresent engineering calculation, finally the most accurate empirical formula isoptimized to offer the reference for our research staff.

参考文献

[1 ] Dranchuk P M, Purvis R A, Robinson D B. Computer Calcul-ations of natural gas compressibility factors using the standing and katz c orrelation [J ].Inst of Petroleum Technical Series, 1974,36(4):76-80. 
[2]  杨继盛,刘建仪.采气实用计算 [M ].北京:石油工业出版社,1994:10-17.
 [3 ]  Dranchuk P M, Abu-Kassem J H.Calculation of Z-factors for natural gases  using equations-of-state [J ].JCPT,1975,40(4). 
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