The Hydrogeochemical Characteristic of Carboniferous Kalagang Formation (C2K) and LTS Relationship with Oil-Gas Accumulation in Malang Depression
详细信息
- 责任者：Liu Yuanping (College of Energy Resources ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Xu Xingan
- 刊名：Xinjiang Oil & Gas
- 出版年：2013
- 卷期：9(2)
- 关键词：油气聚集 ; oil and gas accumulation ; 水化学 ; hydrochemistry ; 新疆 ; Xinjiang
- 页码：p.1-7
- 图表：illus., 2 tables, 23 refs.
- 分类号：1003
- issnNo：ISSN1673-2677
- isbnNo：CN65-1253/TE
摘要
The Hydrocarbon generation,migration,aggregation,saved and lost are in the environment of formation water or the participation of the formation water.The formation water movement is the hydrocarbon migration and accumulation of power and carrier.Its chemical composition,directly or indirectly reflects the environment and conditions for oil and gas accumulation.the Formation water and oil and gas in the process of geological history are interdependent and they constraint to each other.From the hydrogeological point of view to take advantage of the various chemical characteristics parameters of the formation water,as rNa+/rCl-ratios、(rSO42-×102) /rCl-ratios、(rHCO3-+ rCO32-) /rCa2+ ratios、rCl-/rMg2+ ratio and combined features.Analysis of the oil and gas storage conditions,the degree of closure of the strata,and oil and gas migration conditions,from chemistry characteristics of formation water is done,in order to master distribution of oil and gas reservoirs and look for favorable hydrocarbon accumulation zone.The stuldy shows that the formation water of Kalagang Formation in Santanghu Basin,with higher of salinity and rCl-/rMg2+ ratios,rNa+/rCl-ratios、(rSO42-×102)/rCl-ratios、(rHCO3-+ rCO32-)/rCa2+ ratio are lower.Salinity,the waterborne coefficient and water changes have good consistency.That hydrogeological conditions are favorable to the preservation of oil and gas in the area.The analysts believe that the formation water geological environment is stable and has the closed conditions in the slope zone,so it is conducive to hydrocarbon accumulation.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |