松辽盆地北部长春岭背斜油源识别及油源区资源评价  

Oil-source identification and resource evaluation of oil-source area of Changchunling anticline in Northern Songliao Basin

作　　者：陈方文[1,2] 卢双舫[1,2] 李吉君[1,2] 刘海英[1,2] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]东北石油大学油气藏形成机理与资源评价省重点实验室,黑龙江大庆163318

出　　处：《中国石油大学学报（自然科学版）》2012年第3期26-31,37,共7页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家'973'前期专项课题(2011CB211701);国家自然科学基金项目(41172134;41002044)

摘　　要：通过分析原油成熟度差异、油气优势运移方向、油气分布规律、圈闭对油气运移的屏蔽作用及烃源岩地化特征,并结合化学动力学方法对松辽盆地北部长春岭背斜油源及油源区资源量进行研究。结果表明:长春岭背斜原油与王府凹陷原油成熟度相近,且明显低于三肇凹陷和朝阳沟阶地原油成熟度,长春岭背斜位于王府凹陷油气优势运移方向上,原油平面上环王府凹陷分布,朝阳沟阶地对由三肇凹陷而来的油气具有屏蔽作用,长春岭背斜原油主要来源于王府凹陷;王府凹陷青山口组烃源岩有机质丰度高、类型好,但成熟度较低,其油、气生成量分别为13.6×1011t和4.4×108m3,油、气资源量分别为(0.68～2.72)×108t和(0.022～0.088)×1011m3。By analyzing the difference of crude oil maturity, preferred direction of hydrocarbon migration, distribution of hydrocarbon, shielded effect of trap on hydrocarbon migration, and geochemical characteristics of source rocks, and by combining with chemistry kinetic method, the oil-source of Changchunling anticline in Northern Songliao Basin, and the resource of its oil-source area were studied. The results show that the crude oil maturity of Changchunling anticline is similar to that of Wangfu depression, but significantly lower than that of Sanzhao depression and Chaoyanggou terrace. Changchunling anticline is on the preferred direction of hydrocarbon migration from Wangfu depression. The distribution of crude oil is around Wangfu depression on level. Chaoyanggou terrace shields the hydrocarbon migration from Sanzhao depression to Changchunling anti- cline. The crude oil of Changchunling anticline comes mainly from Wangfu depression. The source rocks of Qingshankou formation in Wangfu depression are high abundance of organic matter, good type, but low maturity. The amount of oil and gas generation from Qingshankou formation are 13.6×10^11 t and 4.4×10^8 m^3 in Wangfu depression, and the resource of oil and gas are （0.68-2.72） ×10^8 t and （0. 022-0. 088） ×10^11 m^3 respectively.

关 键 词：松辽盆地北部 长春岭背斜 王府凹陷 油源 资源评价 

分 类 号：TE122.1[石油与天然气工程—油气勘探]