Formation and evolution of Weiyuan-Anyue tensional corrosion trough in Sinian system, Sichuan Basin

被引:18
作者
Li Zhongquan [1 ,2 ]
Liu Ji [1 ,2 ]
Li Ying [3 ]
Hang Wenyan [2 ]
Hong Haitao [4 ]
Ying Danlin [4 ]
Chen Xiao [4 ]
Liu Ran [1 ,2 ]
Duan Xinguo [1 ,2 ]
Peng Ji [1 ,2 ]
机构
[1] Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Peoples R China
[2] Chengdu Univ Technol, Minist Land & Resources, Key Lab Tecton Controls Mineralizat & Hydrocarbon, Sichuan Chengdu 610059, Peoples R China
[3] Missouri Univ Sci & Technol, Rolla, MO 65409 USA
[4] PetroChina Southwest Oil & Gas Field Co, Chengdu 610051, Peoples R China
基金
中国国家自然科学基金;
关键词
Sichuan Basin; Sinian; Weiyuan-Anyue; tensional corrosion trough; formation and evolution; ROCKS;
D O I
10.1016/S1876-3804(15)60003-9
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Based on comprehensive analysis of deposition and structure, the horizontal and vertical characteristics of the Weiyuan-Anyue erosion-extension groove have been studied by outcrop, drilling, well logging and seismic data. According to the strata, lithology, structure and regional evolution, Sinian system before the erosion has been reconstructed to show the development and transformation of the erosion-extension groove in the Tongwan movement. The Weiyuan-Anyue tensional corrosion trough is distributed along the Penglai-Anyue-Rongchang in NW direction, with the west area steeper than the east in groove. According to the study of the Weiyuan-Longnusi seismic profile across the middle area of erosion-extension groove, the formation of the Weiyuan-Anyue tensional corrosion trough is the synthetic result of different geological processes from differential uplift, differential erosion and dissolution in the Dengying Formation caused by the multiple-phase episode grabon or horst movement of the basement fault in Sinian. The formation of the Weiyuan-Anyue erosion-extension groove can be divided into three stages, and the erosion and dissolution can be calculated quantitatively by denudation recovery profile, its maximum can reach 600 m.
引用
收藏
页码:29 / 36
页数:8
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