CAJ | 학술논문

以南襄盆地泌阳凹陷北部斜坡带生物降解油为例，在评价三环萜烷抗生物降解能力的基础上，研究了三环萜烷在生物降解油油源对比中的应用。对比分析表明，三环萜烷至少可以抵抗8级强度的原油生物降解，C23～C26／C19～C22－三环萜烷、C19～C26／C28～C29－三环萜烷及C19～C26－三环萜烷／C29－Ts等参数是有效的油源对比指标。三环萜烷指标、碳稳定同位素及三芳甾烷组成特征指示，泌阳凹陷北部斜坡带核三下亚段生物降解油来自深凹区核三下亚段烃源岩，核三上亚段生物降解油主要来自深凹区核三上亚段烃源岩。在珠江口盆地珠Ⅰ坳陷中，上述三环萜烷参数确定的油源关系与现有认识一致，进一步表明了这些参数的有效性。
이남양분지비양요함북부사파대생물강해유위례，재평개삼배첩완항생물강해능력적기출상，연구료삼배첩완재생물강해유유원대비중적응용。대비분석표명，삼배첩완지소가이저항8급강도적원유생물강해，C23～C26／C19～C22－삼배첩완、C19～C26／C28～C29－삼배첩완급C19～C26－삼배첩완／C29－Ts등삼수시유효적유원대비지표。삼배첩완지표、탄은정동위소급삼방치완조성특정지시，비양요함북부사파대핵삼하아단생물강해유래자심요구핵삼하아단경원암，핵삼상아단생물강해유주요래자심요구핵삼상아단경원암。재주강구분지주Ⅰ요함중，상술삼배첩완삼수학정적유원관계여현유인식일치，진일보표명료저사삼수적유효성。
Biodegrade d oils from the northern slope of the Biyang Sag were analyzed to examine the application of tricyclic terpanes to biodegraded oil?source correlation. Tricyclic terpanes are resistant to biodegradation ( biode?gradation rank 8) . New tricyclic terpane parameters, such as (C23-C26/C19-C22)?tricyclic terpanes, (C19-C26/C28-C29)?tricyclic terpanes and (C19-C26)?tricyclic terpanes/C29?Ts are effective oil?source correlation parame?ters. Correlation results suggested that the biodegraded oils in the lower member of Eh3 on the northern slope of the Biyang Sag came from the mudstones in the lower member of Eh3 of the central sag, and the oils in the upper member of Eh3 mainly came from the mudstones in the upper member of Eh3 of the central sag. The correlation results of oils and source rocks in the ZhuⅠDepression of the Pearl River Mouth Basin determined by the three tricyclic terpane parameters were consistant with previous results, further supporting the effectiveness of the pa?rameters.