收稿日期: 2006-06-14
修回日期: 2006-07-10
网络出版日期: 2006-12-10
基金资助
国家“十五”重点科技攻关课题“中国大中型天然气田勘探开发关键技术研究”(编号:2004BA616A02-03)资助.
THE STUDY OF GASEOUS Z-FACTOR ASCERTAINING METHOD OF DEEP LAYER AND ULTRAHIGH PRESSURE GAS RESERVOIR
Received date: 2006-06-14
Revised date: 2006-07-10
Online published: 2006-12-10
江同文;肖香姣;郑希潭;唐明龙;林娜;王洪峰 . 深层超高压气藏气体偏差系数确定方法研究[J]. 天然气地球科学, 2006 , 17(6) : 743 -746 . DOI: 10.11764/j.issn.1672-1926.2006.06.743
Gaseous Z-factor is key data that is used to calculate the reserves of gas reservoir, we can generally make certain Z-factor by Z-factor charts, experience methods and experimentation. However,because deep layer and ultrahigh pressure gas reservoir has high temperature and high pressure, we are devoid of proof of practical measurement whether these conventional methods are applicable. Experiment of high temperature and high pressure show Z-factor and critical pressure are greatly excessive lowpressured gas reservoirs under ultrahigh pressure condition, which has gone beyond applicable scope of Z- factor charts, so conventional methods are usually inapplicable; Z-factor and pressure has good linearity relation under high temperature and high pressure condition, therefore, it is feasible for Z-factor of ultrahigh pressure gas reservoir to apply experiment result and linearity relation to extrapolate the original stratum pressure condition, which will greatly reduce the request of experiment equipment, and predigest the process of experiment.
[1]STANDING M B, KATZ D L. Density of natural gases[J]. AIME, 1942,46:140-149.
[2]DRANCHUK P M, PURVIS R A, ROBINSON D B. Computer calculation of natural gas compressibility factors using the Standing and Katz correlation[J]. Inst of Petr Tech Series,1974,(1):74-108.
[3]HALL K R, YARBOROUGH L. How to solve equation of state for Z-factors[J]. Oil and Gas J,1974,72(7):86-88.
[4]袁自学.计算偏差系数经验公式的优化选择[J].新疆石油地质,1996,17(2):163-167.
[5]秦同洛.实用油藏工程方法[M].北京:石油工业出版社,1983:2-4.
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