以准噶尔盆地腹部石炭系为例 ,利用油气水物理化学性质的变化 ,采用地层水的矿化度、水型、钠氯比值、脱硫系数 ,原油的密度、粘度、凝固点 ,以及天然气中的甲烷含量、ΔR3等参数 ,分析判断了油气运移及保存的情况。结果表明 :准噶尔盆地腹部石炭系由东北向南 ,由周边向中央水动力变弱 ,对油气保存有利 ;在伦 2井、伦 3井至夏盐 1井一带及彩 4井处 ,是水动力相对较强的区域 ,对油气的保存不利 ;油气运移方向可能为由西北向东南。认为该盆地南部富存油气的可能性较大 Taking the Carboniferous in the abdomen of Junggar Basin as an example, taking advantage of the change of physico -chemical properties of oil and gas, this paper uses the salinity of formation water, water type, sodium-chlorine ratio, desulfurization coefficient, density, viscosity and freezing point of crude oil and methane content in natural gas , ΔR3 and other parameters, analysis and judgment of hydrocarbon migration and preservation of the situation. The results show that the abyssal Carboniferous in the Junggar Basin weakens from the northeast to the south and weakens from the periphery to the center, which is favorable for the preservation of oil and gas. In Lunnan 2, Lun 3, Xiayan-1 well and Cai 4 well, it is hydrodynamic Relatively strong region, the preservation of oil and gas adverse; hydrocarbon migration direction may be from northwest to southeast. The southern part of the basin is considered to be more likely to be rich in hydrocarbons