CAJ | 학술논문

利用岩心样品和钻井液进行CO_2脱气实验,分析钻井液类型对CO_2气测产生的影响.结果表明:地层条件下含CO_2气的岩心与不含CO_2的岩心相比,前者脱出气的CO_2体积分数明显高于后者.这表明岩心脱气分析可以帮助识别地层条件下岩石中是否存在CO_2,推测岩屑也能起到这一作用.4种常用的钻井液脱气分析显示,不同类型的钻井液脱出气中CO_2体积分数差异也很大,说明钻井液类型对CO_2气测也产生影响.
이용암심양품화찬정액진행CO_2탈기실험,분석찬정액류형대CO_2기측산생적영향.결과표명:지층조건하함CO_2기적암심여불함CO_2적암심상비,전자탈출기적CO_2체적분수명현고우후자.저표명암심탈기분석가이방조식별지층조건하암석중시부존재CO_2,추측암설야능기도저일작용.4충상용적찬정액탈기분석현시,불동류형적찬정액탈출기중CO_2체적분수차이야흔대,설명찬정액류형대CO_2기측야산생영향.
Through the degassing analysis of the core samples, we came to the conclusion that, under reservoir conditions, the CO_2 bearing core was compared with the CO_2 free core, the degassing carbon dioxide content of the former is significantly higher than that of the latter. This indicates that degassing analysis of the core can help to identify whether carbon dioxide exists in the rock under reservoir conditions, speculates that the debris can also play this role. Degassing analysis of the four kinds of drilling fluid shows that the degassing carbon dioxide content for different types of drilling fluid also makes a great difference, this illustrates that the type of drilling fluid may also have an impact on the carbon dioxide measurement.