Fluid Inclusion Evidence for Oil Charge and Cracking in the Cambrian Longwangmiao Dolomite Reservoirs of the Central Sichuan Basin, China
Fluid Inclusion Evidence for Oil Charge and Cracking in the Cambrian Longwangmiao Dolomite Reservoirs of the Central Sichuan Basin, China
复制标题
川中寒武系龙王庙白云岩油藏流体包裹体证据
DOI：
10.1155/2022/3019100
复制
发表时间：
2022-04
期刊：
影响因子：
1.7
通讯作者：
Hua Jiang
中科院分区：
文献类型：
--
作者：
Xuewei Xiao;Honghan Chen;Chunquan Li;Xiuyan Liu;Zecheng Wang;Hua Jiang
四川盆地磨溪地区寒武系龙王庙气藏具有复杂的伴生气藏聚集史。在岩心薄片、流体包裹体分析和一维埋藏热模拟研究的基础上，重建了龙王庙组的成岩演化和油气成藏过程。各种成岩事件被识别出来，构成了一个完整的孔隙充填序列：固体沥青/白云岩→非荧光固体沥青→白云岩→石英/黄色荧光油性沥青→残余孔洞。油包裹体和含沥青包裹体的分析是了解油气成藏过程的关键。与烃类包裹体共生的包裹体Th值在74.3~214.3℃之间，结合埋藏-热史模拟结果表明，龙王庙碳酸盐岩储层存在两期充油和三期天然气聚集。这两期油气充注分别发生在志留纪晚期和中三叠世。三次成藏分别发生在中晚三叠世、中侏罗世至早白垩世和晚白垩世。
The Cambrian Longwangmiao gas reservoirs in the Moxi area of the Sichuan Basin have a complex associated gas accumulation history. Based on core and thin section examination, fluid inclusion analyses and 1-D burial-thermal modelling, the diagenetic evolution and hydrocarbon accumulation processes in the Longwangmiao Formation have been reconstructed. Various diagenetic events were identified, making up a complete pore fill sequence as follows: solid bitumen/dolomite→ nonfluorescent solid bitumen → dolomite → quartz/yellow fluorescent oily bitumen → residual hole. Analyses of oil inclusions and bitumen-bearing inclusions are key to the understanding of the hydrocarbon accumulation processes. The Th values of the aqueous inclusions that are contemporaneous with hydrocarbon inclusions range from 74.3 to 214.3°C. In conjunction with burial-thermal history modelling results, the results indicate that there were two stages of oil charge and three stages of natural gas accumulation in the Longwangmiao carbonate reservoirs. The two stages of oil charge occurred in the Late Silurian and Middle Triassic, respectively. Three gas accumulation events occurred in the Middle to Late Triassic, Middle Jurassic to Early Cretaceous, and Late Cretaceous, respectively.
登录
查看更多内容
中国西南地区龙门山冲断带北部的生油时限和生油来源：对多个生油事件和生油来源的启示
影响因子：
3.5
作者：
Xiang Ge;Chuanbo Shen;David Selby;Jie Wang;Liangbang Ma;Xiaoyan Ruan;Shouzhi Hu;Lianfu Mei
通讯作者：
Lianfu Mei
影响因子：
4.2
作者：
A. Su;Honghan Chen;Jian-xin Zhao;Tongwei Zhang;Yue‐xing Feng;Cunwu Wang
通讯作者：
A. Su;Honghan Chen;Jian-xin Zhao;Tongwei Zhang;Yue‐xing Feng;Cunwu Wang
影响因子：
1.8
作者：
Chi-hao Guo;Lu Huan
通讯作者：
Chi-hao Guo;Lu Huan
影响因子：
2.8
作者：
Ziye Lu;Honghan Chen;H. Qing;G. Chi;Qianglu Chen;D. You;Hang Yin;Siyang Zhang
通讯作者：
Ziye Lu;Honghan Chen;H. Qing;G. Chi;Qianglu Chen;D. You;Hang Yin;Siyang Zhang
影响因子：
4.2
作者：
F. Berra;K. Azmy;G. Porta
通讯作者：
F. Berra;K. Azmy;G. Porta