论文详情
东海海礁凸起、钱塘凹陷中、古生代地层展布探讨
海洋石油
2005年 25卷 第3期
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Title
Study on the Distribution of Mesozoic and Paleozoic Layer in Haijiao Doming and Qiantang Depression in the East China Sea
Authors
GAO De-zhang
TANG Jian
BO Yu-ling
单位
中国石化 上海海洋油气分公司 研究院, 上海 200120
Organization
Institute of Shanghai Offshore Oil & Gas Company, SINOPEC, Shanghai 200120, China
摘要
基于东海海礁钱塘地区1:20万重磁成果, 采用小波多尺度分解、全磁纬变倾角化极等技术, 对该地区前新生代地层的展布与含油气远景进行了探讨。依据研究成果认为:研究区存在中生界, 可能存在古生界;沉积层底界面埋深大于4500m的地区可能存在侏罗纪暗色泥岩;研究采用的方法技术可行、有效, 可用于前新生代地层展布研究与含油气远景预测。
Abstract
On the basis of 1:200000 gravity and magnetic results in Haijiao-Qiantang area in the East China Sea, using wavelet analysis and all magnetic latitude variable inclination turning to the pole, the distribution of pre-Cenozoic layer and the petroleum resources are discussed. It is considered:here exist Mesozoic group and Paleozoic group;in the area where the depth of bottom boundary of sedimentary stratum is greater than 4500m, Jurassic dark mud rock maybe exist;the study method and technique are feasible and available, and can be widely used in the study of distribution of pre-Cenozoic layer and forecasting oil-gas perspective.
关键词:
海礁凸起;
钱塘凹陷;
重力异常;
磁力异常;
沉积层底界面;
中、古生代地层;
含油气远景预测;
小波多尺度分解;
全磁纬变倾角化极;
Keywords:
Haijiao doming;
Qiantang depression;
gravity anomaly;
magnetic anomaly;
bottom boundary of sedimentary stratum;
Mesozoic and Paleozoic layer;
oil-gas perspective;
wavelet analysis;
all magnetic latitude variable inclination turning to the pole;