Of azerbaijan high technical educational institutions

PAHTEI 
PROCEEDINGS OF AZERBAIJAN HIGH TECHNICAL EDUCATIONAL INSTITUTIONS 
VOLUME 27 ISSUE 04 2023 
E-ISSN: 2674-5224 
is 18 thousand tons, the total liquid production is 79 thousand tons. In 1952, the number of wells 
began to increase to 6, and since 1968 their number has decreased again, and in 1995, the 
development of wells from this horizon was completely stopped. Wells were later drilled again, 
currently only one well is operating from this horizon. Despite the dense grid of wells, this did not 
affect the pace in any way. Between 1942 and 1952, the annual oil production dropped from 
12,000 tons to 8,000 tons. Due to the drilling of new wells in 1956, this figure increased to 17 
thousand tons. At present, the total volume is 1 thousand tons (fig. 3). 
Reservoir pressure dropped sharply from 13.8 MPa to 3.1 MPa compared to the initial periods. 
One of the main reasons for this is that no water is injected into the reservoir [5]. 
The above analysis of the operation process of the Bibieibat field allows us to identify some 
features of the operation process. In the section of the field, the oil-bearing of the layers is noted, 
starting from the I + II horizon of the productive formation and reaching the Kirmaki suite. The 
intensive production process carried out at the field has led to the realization of the resources of 
the exploitation objects at different levels.
 
Studying the difference between current oil rates
As mentioned above, the horizons at the Bibieibat field were put into operation at different times. 
In addition, if in the horizon “XIV suite” the development process was carried out intensively 
with a dense grid of wells, then in the horizon “XV layer” the number of wells was small, and the 
well network was sparse. Under such conditions, the factors that positively and negatively affect 
the flow of the liquid were studied. It has been established that the geological diversity of the 
second object is sharp in area and section, while the geological diversity of the first is not sharp. 
Since the permeability, porosity and other geological parameters of the rocks in the horizon “XIV 
suite” are good compared to the horizon “XV layer”, the hydrodynamic parameters of this horizon 
are high. Thus, if weak forms of fluid flow are detected over the area of the horizin “XV suite”, 
then in the horizon of the “XIV layer”, on the contrary, an active fluid flow is detected over the 
area as a result of the active layer regime [6].
As a result of the studies, it was found that the production volume of the horizon “XV layer” 
weakly depends on the number of wells. So, here the value of the correlation coefficient of the 
horizon “XV layer” is 0.5. In the horizon “XIV suite”, on the contrary, the number of wells is 
determined more sharply than the volume of oil production. So, the value of the correlation 
coefficient is 0.71. 
Horizon “XV layer” has been in operation since 1928. An increase in the number of wells 
operated did not have a significant impact on the increase in annual oil production. The horizon 
“XIV suite” has been developed since 1914, and the increase in the number of operating wells has 
had a serious impact on annual oil production [7]. 
The graphs below show the relationship between production wells and annual oil production for 
given horizons (fig. 4, 5). 

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