油气水物化性质与油气运移及保存  

The relations between the fluid features in reservoir and the migration and preservation of oil and gas

作　　者：朱玉双[1] 王震亮[1] 高红[2] 林艳萍[2] 

机构地区：[1]西北大学地质学系,陕西西安710069 [2]胜利油田物探公司,山东东营257000

出　　处：《西北大学学报（自然科学版）》2000年第5期415-418,共4页Journal of Northwest University（Natural Science Edition）

基　　金：国家"九五"攻关项目!(96 -110-05 -03-03)

摘　　要：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。Carboniferous system in the hinterland of Zhunga′er basin was used as an example to analyse the condition about the oil and gass migration and preservation according to the fluid features in reservoir . In the study the formation water salinity, type, ratio of Na + and Cl -( r Na +/ r Cl -) ,coefficient of desulphuration( r SO 2- 4×100/ r Cl -) and the density , viscosity , solidification point of oil and the amount of CH 4 in gas and Δ R 3 was used. The results indicate the hydrodynamic force condition becomes weak from northeast to south and from all around to the middle, it is good for oil and gas to be preserved. The hydrodynamic force is stronger at well Lun2, from well Lun3 to well Xiayan1, and at well Cai4 than in other areas. These places are not good for oil and gas to be preserved. The possible migration direction of oil and gas is from northwest to southeast. So the gas and oil may be stored abundantly in the south of the basin.

关 键 词：油气水物化性质 油气运移 保存 油田地质 

分 类 号：P618.130.1[天文地球—矿床学]