Abstract
In 1952 the author described that the performance behavior of Mobara gas field was the results of gravity drive in the report "The Development of Mobara gas field". In this report some more details are explained.
The most significant characters of the Mobara reservoirs are generally not very well understood because of the complexities. To explain these conditions in somewhat more detail, it is necessary to use the performance curves in the field being now developed.
On gravity drainage, counter-current flow of gas up-dip may become important factor. When water drains down-structure it must be replaced by gas.
So that wells high on structure show increase of gas water ratio more rapidly than wells low on structure.
The M. E. R. (most efficient rate of production) is about 15, 000-20, 000 m3 gas per day per6, 000, 000 square meters in the case of which water level declines 6 meters per year.
