Abstract: According to the experimental data of the solubility of natural gas in the formation water with different salinities and types,plats of solubility of the natural gas have been drawn and the equation related to the solubility have been obtained by a regression of related data using a computer in this paper.The characteristic of the solubility of natural gas in the formation water and its geological significance have been studied under various conditions.In this paper,the experimental data of the solubility of natural gas in formation water,the phase state of natural gas and its quantity in its migration state has been studied in Langgu and Baxian depressions,Jizhong region.The resources of dissolved natural gas in formation water are calculated and evaluated in Baxian depression.

摘要： 根据不同成因类型天然气在矿化度不同、水型不同的地层水中的溶解度测定数据回归了有关方程式;讨论了天然气在地层水中的溶解度与地层水矿化度、水型、温度和压力的关系;研究了天然气及其各组分在不同温度和压力条件下地层水中的溶解度变化特征及其地质意义;预测了天然气富集带.结合冀中地区廊固和坝县凹陷的地质情况研究了天然气的运移相态,同时对坝县凹陷的水溶气资源进行了预测和评价.

关键词: 天然气, 溶解度, 水溶气, 天然气运移, 水溶气资源