海洋地质前沿2017，Vol.33Issue(11)：54-59,6.DOI:10.16028/j.1009-2722.2017.11008
渤海油田轻质油气藏气测流体评价方法
FLUID EVALUATION OF LIGHT OIL-GAS ACCUMULATIONS WITH GAS LOGGING IN BOHAI OILFIELD
刘娟霞 1刘朋波 2袁胜斌 1刘永华 1马金鑫 3刘坤3
作者信息
- 1. 中法渤海地质服务有限公司,天津300452
- 2. 中海石油(中国)有限公司天津分公司,天津300452
- 3. 中海油能源发展股份有限公司,天津300452
- 折叠
摘要
Abstract
Light oil and gas are mostly accumulated in middle-deep formations in the Bohai oilfield.Owing to the low density and high gas/oil ratio of the crude oil,gas coexists with oil.Light oil usually has similar mud logging curves with gas layers.In addition to it,logging data are deficient in some of the wells because of bad borehole conditions.These lead to the difficulties in fluid identification.Therefore,research for light fluid evaluation has been taken for the commonly used gas logging system.The 3H combined model based on conventional gas components (C1-C5) shows certain regular pattern which is quite different from traditional 3H model.Condensate gas and light oil as well as the interface of them are effectively recognized by the combination of 3H model and star charts,which are used to identify the fluid phase.Three fluid indexes based on C1-C8 detected by FLAIR system can sensitively reflect the abundance of hydrocarbon.They have obvious advantages in fluid evaluation of light oil-gas reservoir in the Bohai oilfield.The research promotes the recognition of oil and gas distribution pattern and reserve confirmation of the structural belt and is valuable for further application to other light oil-gas zones.关键词
轻质油气藏/常规气测/3H解释模型/星型图板/FLAIR/流体指数Key words
light oil-gas reservoir/conventional gas logging/3H interpretation model/star chart/FLAIR/fluid index分类
能源科技引用本文复制引用
刘娟霞,刘朋波,袁胜斌,刘永华,马金鑫,刘坤..渤海油田轻质油气藏气测流体评价方法[J].海洋地质前沿,2017,33(11):54-59,6.
