Experimental Simulation of Calculation on Coefficient of Downhole Hydrocarbon Gas Dissolved into Drilling Fluids and Its Application on Formation Evaluation
详细信息
- 责任者：Yang Mingqing (China University of Geosciences ; Beijing 100083 ; China) ; Li Sanguo
- 刊名：Petroleum Geology & Experiment
- 出版年：2013
- 卷期：35(5)
- 关键词：储层评价 ; reservoir evaluation
- 页码：p.579-582,586
- 图表：4 illus., 21 refs.
- 分类号：1003
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
When drilling bit has cut through strata,crushed rocks and gases are carried to ground by drilling fluid.Some of them are dissipated in the air immediately,and some are dissolved in drilling fluid. To detect the dissolved volume and volume fraction of hydrocarbon gas components is one of the most important methods to discover and evaluate oil-and-gas shows. Different hydrocarbon gas components have different dissolving capacities.And reservoir cannot be discovered and evaluated timely and accurately if the dissolving test of various hydrocarbon gases is just done. For this reason,a "dissolving coefficient"and its solving method are proposed for the first time. Through the dissolving test of various hydrocarbon gases with a rotary simulation device of drilling fluid in high temperature and high pressure,we recognize the dissolving coefficient in these circumstances. According to the dissolving coefficient,the true content of a certain hydrocarbon composition is calculated. This will be advantageous to discover and evaluate oil-and-gas shows timely and accurately.
© 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 |