吉林省双阳盆地油气地质条件研究
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摘要
野外地质调查、地震剖面解释及双参1井钻探资料分析表明:吉林省双阳盆地下白垩统长安组湖相暗色泥岩分布广且厚度稳定,有机质丰度高,有机质类型以Ⅱ1型干酪根为主,有机质演化处于成熟阶段,生烃潜力好,是盆内好-最好烃源岩的有利烃源岩层位;此外,分布广泛的盆地基底中二叠统范家屯组暗色泥岩也有一定的生气能力。其与长安组发育的扇三角洲非常规致密储集层砂体及具有一定储集性能的安民组、金家屯组中酸性火山建造,形成了自生自储、上生下储、下生上储等有利生储盖组合;并与盆地中部的次级隆起共同构架了较为有利的中部油气聚集区带,具有一定的勘探前景。
Field geological surveys,interpretation of seismic sections and Shuangcan 1 drilling data show that the dark mudstone of the Lower Cretaceous Chang'an Formation in Shuangyang Basin of Jilin province is widely distributed,with stable thickness and high organic matter content. The organic matter type is mainly Ⅱ1 type kerogen,the organic matter evolution is at the mature level,and with better hydrocarbon-generating potential. It is considered to be the favorable source rock formation for good-best source rocks in Shuangyang Basin. Additionally,the dark mudstone of the Middle Permian Fanjiatun Formation which is widely distributed in the basement of the basin has good gas-generating potential. Fan-delta unconventional tight reservoir sand bodies were developed in the Chang'an Formation,while medium-acid volcanic structures with certain reservoir properties were developed in the Anmin Formation and Jinjiatun Formation. Favorable self-sourcing and self-reservoiring,lower-sourcing and upper-reservoiring,upper-sourcing and lower-reservoiring assemblages were formed. Together with the secondary uplift in the central part of the basin,a favorable central oil and gas accumulation zone with certain exploration prospects was formed.
Field geological surveys,interpretation of seismic sections and Shuangcan 1 drilling data show that the dark mudstone of the Lower Cretaceous Chang'an Formation in Shuangyang Basin of Jilin province is widely distributed,with stable thickness and high organic matter content. The organic matter type is mainly Ⅱ1 type kerogen,the organic matter evolution is at the mature level,and with better hydrocarbon-generating potential. It is considered to be the favorable source rock formation for good-best source rocks in Shuangyang Basin. Additionally,the dark mudstone of the Middle Permian Fanjiatun Formation which is widely distributed in the basement of the basin has good gas-generating potential. Fan-delta unconventional tight reservoir sand bodies were developed in the Chang'an Formation,while medium-acid volcanic structures with certain reservoir properties were developed in the Anmin Formation and Jinjiatun Formation. Favorable self-sourcing and self-reservoiring,lower-sourcing and upper-reservoiring,upper-sourcing and lower-reservoiring assemblages were formed. Together with the secondary uplift in the central part of the basin,a favorable central oil and gas accumulation zone with certain exploration prospects was formed.
引文
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[13]王璞珺,侯启军,刘万洙,等.松辽盆地深层火山岩储层岩相特征和天然气的来源[J].世界地质,2007,26(3):319-325.WANG Pu-jun, HOU Qi-jun, LIU Wan-zhu, et al.Characteristics of volcanic facies and genesis of natural gases in deep Songliao Basin,NE China[J]. Global Geology,2007,26(3):319-325.
[14]任燕宁,崔桐,刘杨,等.松辽盆地东部榆树断陷下白垩统岩相展布特征及有利勘探区带预测[J].世界地质,2017,36(1):174-181.REN Yan-ning,CUI Tong,LIU Yang,et al. Lithofacies distribution and prediction of favorable exploration play of Lower Cretaceous in Yushu Fault Depression,eastern Songliao Basin[J]. Global Geology,2017,36(1):174-181.
[15] Lou R X,Dong Q S,Nie H. Exploration prospects of shale gas resources in the Upper Permian Linxi Formation in the Suolun-Linxi area,NE China[J]. Energy Fuels,2017,31(2):1100-1107.
[2]王洪力.双阳盆地聚煤作用及煤层分布特点[J].中国煤田地质,2006,18(6):11-12,16.WANG Hong-li. Coal-accumulation regulation in Shuangyang Basin and prediction of promising area for coal looking[J]. Coal Geology of China,2006,18(6):11-12,16.
[3]董清水,郭少斌.吉林双阳地区多期聚煤作用及找煤方略探讨[J].长春地质学院学报,1995,25(3):294-300.DONG Qing-shui,GUO Shao-bin. Multistage coal accumulation anddiscussion on coal exploration in Shuangyang region of Jilin province[J]. Journal of Changchun College of Geology,1995,25(3):294-300.
[4]张兴洲,郭冶,曾振,等.东北地区中-新生代盆地群形成演化的动力学背景[J].地学前缘,2015,22(3):88-98.ZHANG Xing-zhou,GUO Ye,ZENG Zhen,et al. Dynamic evolution of the Mesozoic-Cenozoic basins in the northeastern China[J]. Earth Science Frontiers,2015,22(3):88-98.
[5]王世磊,孟元林,张文浩,等.双阳盆地三叠系煤系泥岩烃源岩特征与页岩气勘探潜力[J].中国锰业,2017,35(4):63-65.WANG Shi-lei,MENG Yuan-lin,ZHANG Wen-hao,et al. Characteristic of coaly mudstone source rocks and shale gas exploration potential of Shuangyang Basin[J].China's Manganese Industry,2017,35(4):63-65.
[6]黄第藩,李晋超.陆相有机质演化和成烃机理[M].北京:石油工业出版社,1984:10-47.HUANG Di-fan,LI Jin-chao. Terrestrial organic matterevolution and hydrocarbon generation mechanism[M].Beijing:Petroleum Industry Press,1984:10-47.
[7]王丹丹,周新桂,李世臻,等.通化盆地下白垩统烃源岩石油地质特征及生烃潜力研究[J].地质学报,2017,91(9):2119-2130.WANG Dan-dan,ZHOU Xin-gui,LI Shi-zhen,et al.Petroleum geologic features and generation potential of the Lower Cretaceous hydrocarbon source rocks in the Tonghua Basin[J]. Acta Geologica Sinica, 2017, 91(9):2119-2130.
[8]邬立言,顾信章.热解技术在我国生油岩研究中的应用[J].石油学报,1986,7(2):13-19.WU Li-yan,GU Xin-zhang. The application of pyrolysis technique in source rock research[J]. Acta Petrolei Sinica,1986,7(2):13-19.
[9]秦建中,金聚畅,刘宝泉.海相不同类型烃源岩有机质丰度热演化规律[J].石油与天然气地质,2005,26(2):177-184.QIN Jian-zhong,JIN Ju-chang,LIU Bao-quan. Thermal evolution pattern of organic matter abundance in various marine source rocks[J]. Oil&Gas Geology,2005,26(2):177-184.
[10]李延钧,陈义才,徐志明,等.低丰度高演化海相碳酸盐烃源岩有机质原生性研究[J].沉积学报,2000,18(1):146-150.LI Yan-jun,CHEN Yi-cai,XU Zhi-ming,et al. The study on indigenous characteristics of organic matter in marine carbonate hydrocarbon source rock with low abundance and high evolution[J]. Acta Sedimentologica Sinica,2000,18(1):146-150.
[11]张振苓,邬立言,舒念祖.烃源岩热解分析参数Tmax异常的原因[J].石油勘探与开发,2006,33(1):72-75.ZHANG Zhen-ling,WU Li-yan,SHU Nian-zu. Cause analysis of abnormal Tmax values on Rock-Evalpyrolysis[J]. Petroleum Exploration and Development,2006,33(1):72-75.
[12]王继远,董清水,林冬萍,等.松辽盆地南部双辽断陷生储盖特征与成藏主控因素分析[J].世界地质,2017,36(1):166-173.WANG Ji-yuan,DONG Qing-shui,LIN Dong-ping,et al. Analysis of source-reservoir-cap association and major factors controlling hydrocarbon accumulation in Shuangliao Fault Depression, southern Songliao Basin[J]. Global Geology,2017,36(1):166-173.
[13]王璞珺,侯启军,刘万洙,等.松辽盆地深层火山岩储层岩相特征和天然气的来源[J].世界地质,2007,26(3):319-325.WANG Pu-jun, HOU Qi-jun, LIU Wan-zhu, et al.Characteristics of volcanic facies and genesis of natural gases in deep Songliao Basin,NE China[J]. Global Geology,2007,26(3):319-325.
[14]任燕宁,崔桐,刘杨,等.松辽盆地东部榆树断陷下白垩统岩相展布特征及有利勘探区带预测[J].世界地质,2017,36(1):174-181.REN Yan-ning,CUI Tong,LIU Yang,et al. Lithofacies distribution and prediction of favorable exploration play of Lower Cretaceous in Yushu Fault Depression,eastern Songliao Basin[J]. Global Geology,2017,36(1):174-181.
[15] Lou R X,Dong Q S,Nie H. Exploration prospects of shale gas resources in the Upper Permian Linxi Formation in the Suolun-Linxi area,NE China[J]. Energy Fuels,2017,31(2):1100-1107.