| Turkmenistan is located in the southwest of Central Asia and Amy River Right Bank Block is located on the Right Bank of the Amy River in Turkmenistan.Exploration in the Right Bank of the Amy river began in the 1950 s and since 1960 s gas fields has been gradually discovered.In the 1990 s,Turkmenistan has carried out foreign cooperation research at this area.Until October 2006,21 gas fields were discovered and 160 evaluation and exploration wells drilled in the area.Due to the cooperation between Turkmenistan and China’s natural gas projects,Turkmenistan will export 30 billion cubic meters of natural gas to China through the Central Asian natural gas pipeline in the next 30 years.In order to ensure that annual gas production meets this goal,it is necessary to recognize and evaluate the prospects of evaluation and development in the region as far as possible.This time through the study of the reservoir characteristics of the target area,the target area is divided into four genetic types of reservoir facies belts,namely,basin facies,slope facies,reef facies,and coastal lagoon-tidal flat facies;two sets of petroleum systems.The Middle-Lower Jurassic is a source of hydrocarbons,including the sandstone gas-bearing strata and the Upper Jurassic Karlov-Oxygen reef and carbonate gas-bearing strata and the dark mudstones and limestones in the Cretaceous.It is a source rock,which includes the clastic gas bearing system of the Nokum Sandykly Formation of the Lower Cretaceous.Then analysis of the gas-bearing area and reserves of typical gas fields shows that the middle and lower Jurassic coastal marsh phases contain coal mudstone and thin coal seams;the Upper Jurassic marine argillaceous carbonate rocks have large hydrocarbon generation potential and abundant reserves.In order to further verify the reserves,the reserves of 21 gas fields discovered were evaluated for potential reserves,and C1 and C2 reserves were calculated respectively.Only the reserves of the Samandepe gas field and Altyn-Asyr3 D zone were implemented,and other gas fields need to be further studied.implement.According to research on reservoirs,gas reservoirs and reserves,most of the gas fields in the project area are concentrated in the central region,and the eastern and western regions and the south-central region are still in the pre-exploration stage section of the new area,and the exploration potential is huge,which is an important guarantee for the replacement of reserves in the next step.Therefore,exploration should be gradually carried out on the basis of ensuring the production capacity.Finally,this paper combines the research results to make a reasonable development plan for the work area,including the design of favorable prospective area division and development plan,so as to meet the required requirements for reserves evaluation and gas production volume in the work area. |
