Comparison of Permian Petroleum Accumulation Conditions between the Zaysan Basin and the Northwestern Margin of Junggar Basin
Zhu Xiangfeng
Shen Chuanbo
Zhao Bin
Hu Shouzhi
Wang Chenglin
Abstract：The Zaysan basin is located in northeastern Kazakhstan, one important country along "the Belt and Road".However, Permian petroleum accumulation research in Zaysan basin is relatively few.In this paper, Permian exploration potentials of the Zaysan basin are explored by a comparative study with adjacent northwestern margin of Junggar basin in tectonic and sedimentary evolution, hydrocarbon source rocks, reservoir cap assemblages, migration and accumulation patterns on the basis of background of tectonic evolution of the Zaysan basin.The results show both of them are the products of plate collisions and the sedimentary systems are all controlled by faults;similar to the Fengcheng Formation, the types of Maichat Formation source rocks are type I and type II;sources rocks deposited in high salinity, reducing environment and they are good source rocks;the reservoirs in the Zaysan basin are of medium porosity and low permeability reservoirs which indicates that the reservoir quality is relatively better.In Permian strata of the Zaysan basin there exists a large set of stratigraphic traps where the oil and gas can be directly accumulated so as to form oil and gas reservoirs.It is suggested that the oil and gas of the Permian strata in the Zaysan basin is characterized by huge potentials for exploration.
Keywords：Zaysan basinnorthwestern margin of the Junggar basinPermianaccumulation conditionspetroleum geology
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 435-446 )