Нефть ва газ конлари геологияси ҳамда қидируви институти, Ўзбекистон нефть-газ саноати илмий– тадқИҚот ва лойихалаш институти, тошкент давлат

The aim of research work
is identification peculiar features of the structural 
plans carbonate and salt-anhydrite formations and their influence on placement of 
deposits of oil and gas within a southeastern part of Bukhara-Khiva region for 
building of reserves of hydrocarbons.
The object of the research work
is Jurassic carbonate and salt-anhydrite 
formations of the southeastern part of the Bukhara-Khiva region.
Scientific novelty of the research work 
is as follows: 
the asymmetric ridges of the near-fault folds were identified in the carbonate 
and lower part of the salt-anhydrite formations for a group of fields confined to 
regional disjunctive faults of the north-east strike allowing to increase hydrocarbon 
reserves; 
the system of regional faults of the northeastern strike and the associated 
structural plans of the carbonate and salt-anhydrite formations were supported 
which allows to identify prospective targets for the discovery of tectonically 
screened deposits; 
industrial oil-bearing capacity of the oyster-ammonite horizon within the 
southeastern part of the Bukhara-Khiva region has been proven, which allows to 
increase oil reserves in the zone of development of depression deposits; 
the allocation of prospective zones was justified on the basis of the developed 
scheme for the distribution of gas, oil and gas, and oil deposits within the Jurassic 
carbonate formation, which will make it possible to forecast hydrocarbon 
accumulations according to their phase states.
Implementation of the research results. 
Based on the results on the 
structural plans of the carbonate and salt-anhydrite formations in the south-eastern 
part of the Bukhara-Khiva region the following was performed:
Spotting of prospecting and exploration wells in the Ahirbulak, Chilkuvar, 
Kirkkuloch fields was implemented at SC Uzgeoburneftgaz (Uzbekneftegaz 
Reference No. 02-14 / 1-111 dated December 27, 2018). As a result, the regional 
productivity of the Middle Upper Jurassic carbonate formation was confirmed, the 
geological structure of the deposits was studied, the contours of productivity were 
significantly expanded, and a significant increase in hydrocarbon reserves was 
obtained; 
Recommendation on the prediction of the type of hydrocarbon deposits by 
geochemical indicators at the Chilkuvar field was implemented at SC 
Uzgeoburneftgaz (Uzbekneftegaz Reference No. 02-14 / 1-111 dated December 
27, 2018). As a result, the presence of oil accumulation in the XV horizon of the 
Jurassic sediments was established; 
Prospecting and detailed CDP 3D seismic survey within the northwestern 
part of the Beshkent trough, eastern, and northeastern part of the Kultak uplift was 
implemented by SC Uzgeoburneftgaz (JSC Uzbekneftegaz Reference No. 02-14 / 
1-111 dated December 27, 2018). As a result, new oil and gas prospects were 
identified.

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