Analysis of Deformation Patterns and Controlling Factors of Salt Structures
The salt structure is developed in China's oil and gas basins.The complexity of its structural deformation mechanism and its close relationship with oil and gas accumulation have become one of the hotspots in the field of structural geology and oil and gas exploration.Due to the different tectonic backgrounds of sedimentary basins,salt structures are affected by different factors,so various styles of salt structures are developed in different regions.In this paper,through the investigation of a large number of literatures,on the basis of previous studies,the typical style and deformation control factors of salt structure are analyzed.The results show that the salt tectonic deformation styles mainly include salt pillow,salt anticline,salt wall,salt plant,salt mat,hanging body,tear drop body,hump-shaped salt diapir,salt ridge,salt canopy and other structural styles.The structural deformation is affected by the thickness of salt layer,sedimentary differential load and,pre-existing structures,progradation and other factors.Finally,taking the salt structure developed in the Kuqa Depression as an example,the typical salt structure deformation characteristics and the influencing factors of salt structure deformation in this area are discussed.
salt structurestructural stylecontrol factorsKuqa Depression
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