Автор: Oleksii Filipov
Дата: 07.12.07 17:28
Dear Andrej,
You may download the eval version of gasprop software:
http://www.starlingassoc.com
This is an extract fron their "white paper":
A.G.A. Report NX-19 was developed for calculations of supercompressibility
factors of natural gases containing up to 15 mole percent N2 and up to 15
mole percent CO2 with a specific gravity limit of 1.0. In practice, however,
these composition limits have been exceeded as a matter of necessity. With
the adoption of A.G.A. Report No. 8 for most natural gases at typical
pipeline conditions, the uncertainties in computer supercompressibility and
compressibility factors will be less than 0.05% and 0.1% on the average,
respectively (the relative uncertainty of the supercompressibility factor is
one-half that of the compressibility factor). For natural gases which have
high gravities, due either to carbon dioxide or ethane plus heavier
hydrocarbons, uncertainties using A.G.A. Report NX-19 will be much higher
than these.
Regards
Alex
2007/12/7, Фильченков Андрей <forum-asutp@xxxxx.xx.xx>:
>
> Так то оно так. Эти уравнения мне известны.
> Но, что удивительно, на днях общался с геологами из другой конторы - и они
> делают то же самое - Измеряют дебит газовой скважины,
> используя показатель
> СВЕРХсжимаемости. Выходит, что скорее всего их расчет прикидочный и
> точность определения дебита невысока. Узнать бы эту точность!
>
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