[an error occurred while processing this directive] ������� 2012, 31(1) 127-133 DOI:     ISSN: 1004-5589 CN: 22-1111/P

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Oil source correlation and controlling factor analysis of hydrocarbon accumulation in Changchunling anticline zone in southern Songliao Basin
SONG Li-Zhong-1, 2, CHEN Jian-Fa-1, LIU Ling-Tong-1, 3, DOU Xu-Ming-4, TANG Min-2, SHEN Xia-2
1. State Key Laboratory of Petroleum Resource and Prospecting��China University of Petroleum��Beijing 102249��China; 2. Petrochina E �� D Research Institute of Jilin Oilfield��Songyuan 138000��Jilin��China; 3. CNOOC Energy Technology �� Service-oilfield Enginneering Institutes��Tianjin 300452��China; 4. CNOOC Energy Technology �� Services Ltd�� Supervision �� Technology Co�� ��Tianjin 300452��China
Abstract:

Changchunling anticline zone is located in the southeast uplift of Songliao Basin��adjacent to Shuangcheng and Sanzhao hydrocarbon-generation depression�� In order to clear the oil source correlation and controlling factors of hydrocarbon accumulation��the authors study the crude oil type and oil-oil correlation according to the research on biomarkers ( triterpane��gammacerane and hopane) �� The results indcate the oil of Fuyu oillayer in Changchunling and Chaoyanggou as I type��while in the Shuangcheng depression as II type�� From the ratios between Tricyclic terpenes /Pentacyclic triterpenoid and Tm/Ts��it is supported that the oil in Changchunling is similar with in Chaoyanggou��and obviously different from in the Shuangcheng depreesion�� Combined with the maturityof source rock��generate-discharge ability and plane distribution��it is illustrated that the oil in Changchunling anticline mainly originates from the source rock of the K1qn1 in Sanzhao depression characterized by the oil generated in top and storaged in the bottom�� The reason of the poor oil came from the south part is the low maturity and the poor expulsion ability of hydrocarbon�� The paleogeography reinstated by the way of mudstone compaction indicates that the wells of fall exploring in the high-order position presently located in the bottom of the paleostructure where is not the main direction of oil and gas migration�� The main controlling factors for oil and gas accumulations in Changchunling anticline include the distribution of hydrocarbon-generating center��the tectonic-paleogeography background on accumulation period��the sandbody nearly south-north orientation and faults��

Keywords: oil source   migration   hydrocarbon-generation depression   paleostructure   Changchunling anticline zonei   southern Songliao Basin  
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1�� ��ѩ��, �ź���.��������ذ�����氼����Դ�����ۼ���Դ�Ա�[J]. �������, 2011,30(2): 231-237
2����ƽ1����ͯ2����ռʢ1��������1.WASP ˮ��ģ���ں�����Ӫ���������е�Ӧ��[J]. �������, 2011,30(2): 265-269
3�� ����1, ��С��2.�������������ϰ��������˾۳ɲ�����[J]. �������, 2012,31(2): 365-370

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