The influence of submarine landslides on the distribution and enrichment of gas hydrate and free gas | |
Zhou JiLin1,2,3,4; Wang XiuJuan1,2,3,5,6; Zhu ZhenYu7; Jin JiaPeng1,2; Song HaiBin8; Su PiBo9; Qian Jin1,2; Zhang GuangXu1,2 | |
2022-09-01 | |
发表期刊 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION |
ISSN | 0001-5733 |
卷号 | 65期号:9页码:3674-3689 |
通讯作者 | Wang XiuJuan(wangxiujuan@ouc.edu.cn) |
摘要 | Submarine landslides, gas hydrate and free gas are identified from the three dimensional (3D) seismic data and logging while drilling (LWD) data in the southern Pearl River Mouth Basin. It is a typical area to study the influence of submarine slides on the distribution and enrichment of gas hydrate and free gas. Based on the effective medium model and Archie equation, the P-wave velocity and resistivity of water-saturated sediments are calculated and compared with the measured P-wave velocity and resistivity from LWD data, and gas hydrate-bearing layer and multiple free gas-bearing layers are identified from the anomalies. The differences of the spatial distributions of gas hydrate, free gas and faults in different submarine landslide zones are shown from the coherence and amplitude attributes generated from 3D seismic data. The base of gas hydrate stability zone (BGHSZ) shifts downward due to seafloor erosion caused by submarine landslides. Gas hydrates are widely distributed if the modified BGHSZ is located beneath the sand-rich sediments and the locally developed faults connect free gas-bearing layers to BGHSZ. However, gas hydrate will not be formed where faults cannot arrive at the BGHSZ and free gas is just trapped in local strata due to the lack of fluid flow conduits. This study provides direct evidence to reveal the relationship between the distributions of gas hydrate, free gas and submarine landslides, and also provides the suggestions to find the joint exploitation target of gas hydrate and free gas in the future. |
关键词 | Submarine landslide Gas hydrate Free gas Faults Pearl River Mouth Basin |
DOI | 10.6038/cjg2022P0957 |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Geochemistry & Geophysics |
WOS类目 | Geochemistry & Geophysics |
WOS记录号 | WOS:000851307600030 |
出版者 | SCIENCE PRESS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/180772 |
专题 | 海洋地质与环境重点实验室 |
通讯作者 | Wang XiuJuan |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Shandong, Peoples R China 2.Lab Marine Mineral Resources, Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Shandong, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, MOE, Qingdao 266100, Shandong, Peoples R China 6.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Shandong, Peoples R China 7.CNOOC Res Inst Co Ltd, Beijing 100027, Peoples R China 8.Tongji Univ, Sch Ocean & Earth Sci, Shanghai 200092, Peoples R China 9.MNR, Guangzhou Marine Geol Survey, Guangzhou 510760, Peoples R China |
第一作者单位 | 中国科学院海洋研究所 |
通讯作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Zhou JiLin,Wang XiuJuan,Zhu ZhenYu,et al. The influence of submarine landslides on the distribution and enrichment of gas hydrate and free gas[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2022,65(9):3674-3689. |
APA | Zhou JiLin.,Wang XiuJuan.,Zhu ZhenYu.,Jin JiaPeng.,Song HaiBin.,...&Zhang GuangXu.(2022).The influence of submarine landslides on the distribution and enrichment of gas hydrate and free gas.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,65(9),3674-3689. |
MLA | Zhou JiLin,et al."The influence of submarine landslides on the distribution and enrichment of gas hydrate and free gas".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 65.9(2022):3674-3689. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论