CAJ | 학술논문

利用岩心观察、薄片鉴定、电子探针和拉曼光谱等分析手段,从缝合线特征描述入手,分析塔河油田缝合线的成因及其油气意义.结果表明:研究区缝合线可分为3种,即顺层缝合线、倾斜缝合线和竖直缝合线;研究区缝合线有压实、压裂和压溶3种成因类型,其中顺层缝合线以压实成因为主,倾斜缝合线和竖直缝合线以压裂成因为主;压实缝合线或压裂缝合线是形成压溶缝合线的基础,而压溶缝合线是压实或压裂缝合线的延续;塔河油田奥陶系碳酸盐岩缝合线比基质有较高的有机质丰度,为油气生成的有利场所,同时为油气的运移提供了有利通道,也有利于提高储层物性.
이용암심관찰、박편감정、전자탐침화랍만광보등분석수단,종봉합선특정묘술입수,분석탑하유전봉합선적성인급기유기의의.결과표명:연구구봉합선가분위3충,즉순층봉합선、경사봉합선화수직봉합선;연구구봉합선유압실、압렬화압용3충성인류형,기중순층봉합선이압실성인위주,경사봉합선화수직봉합선이압렬성인위주;압실봉합선혹압렬봉합선시형성압용봉합선적기출,이압용봉합선시압실혹압렬봉합선적연속;탑하유전오도계탄산염암봉합선비기질유교고적유궤질봉도,위유기생성적유리장소,동시위유기적운이제공료유리통도,야유리우제고저층물성.
By using methods of core observation, thin-section analysis, electron probe and Raman spectrum analysis, the sty-lolite genesis and its petroleum significance in Tahe Oilfield were described based on stylolite characteristics. The results show that there are three kinds of stylolites including bedding, inclined and vertical stylolite. There are three kinds of genetic types for stylolites including compaction, fracturing and pressolution. Compaction is main contribution factor for bedding stylolite , and fracturing is main genetic type for inclined and vertical stylolite. Compaction stylolite or fracturing stylolite are the prerequisite of forming pressolutional stylolite, and pressolutional stylolite is the continuation of compaction stylolite or fracturing stylolite. In Ordovician carbonate rocks of Tahe Oilfield, the stylolites have higher organic matter abundance than matrix , which are also the favorable structure for hydrocarbon generation, migration pathway and advantage to improve physical properties of reservoir.