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《GEOCHIMICA》 1995-03
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COMPARISON OF THE R_0 VALUE CALCULATED ON TTI MODEL AND THAT ON KINETIC MODEL──EXEMPLIFIED BY STUDY OF NORTHERN PART OF SOUTH CHINA SEA

Deng Xiao; Zhang Juming; Chen Moxiang; Wang Ji'an(Institutc of Geology, The Chinese Academy of Sciences, Beijing 100029)Huang Zhongming; Li Yuliang(Scientific Research Institute for Petroleum Exploration and Development, NHWOC,CNOOC, Zhanjiang 524057)  
The R0 values (vitrinite reflectance) obtained on the TTI model and on the chemical kinetic model are compared, and their implications in the evolution of oilmatuation for the northern shelf of South China Sea are discussed. The R0 value obtained based on the TTI model is not consistent with that on the chemical kinetic model. The depth of oil threshold resulting from the kinetic model is shallower than that from the TTI model. The difference between them increases with increasing heating rate, and the increasing order of the difference for the western area of northern shelf of South China Sea is as follows: Beibuwan Basin─Jusan Depression─Yingqiong Basin.
【Fund】: 国家自然科学基金
【CateGory Index】: P59
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