SOURCE ROCK THERMAL AND MATURITY HISTORY MODELING IN C SAG OF THE WEIXINAN DEPRESSION, BEIBUWAN BASIN

GUO Feifei; GUO Xiaowen; SUN Jianfeng; CAO Qiang; ZHANG Yang

doi:10.3724/SP.J.1140.2010.02087

2010 Vol. 30, No. 2

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Article navigation > Marine Geology & Quaternary Geology > 2010 > 30(2): 87-93

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GUO Feifei, GUO Xiaowen, SUN Jianfeng, CAO Qiang, ZHANG Yang. SOURCE ROCK THERMAL AND MATURITY HISTORY MODELING IN C SAG OF THE WEIXINAN DEPRESSION, BEIBUWAN BASIN[J]. Marine Geology & Quaternary Geology, 2010, 30(2): 87-93. doi: 10.3724/SP.J.1140.2010.02087

Citation:

GUO Feifei, GUO Xiaowen, SUN Jianfeng, CAO Qiang, ZHANG Yang. SOURCE ROCK THERMAL AND MATURITY HISTORY MODELING IN C SAG OF THE WEIXINAN DEPRESSION, BEIBUWAN BASIN[J]. Marine Geology & Quaternary Geology, 2010, 30(2): 87-93. doi: 10.3724/SP.J.1140.2010.02087

SOURCE ROCK THERMAL AND MATURITY HISTORY MODELING IN C SAG OF THE WEIXINAN DEPRESSION, BEIBUWAN BASIN

Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China

Received Date: 10 June 2009

Revised Date: 11 October 2009

Abstract

Abstract

It is significant to study the source rock maturity history in the C sag of the Weixinan depression for the deep water exploration in this area of Beibuwan basin.Based on geohistory and thermal history of the C sag,the source rock maturity history of the sag is reconstructed with the usage of Easy%Ro model.The studies indicate:(1) In the early rifting stage,the heat flow in the C sag of the Weixinan depression reached the maximum(77 mW/m2), then decreased gradually and is about 54 mW/m2 at present. (2) The Liushagang Formation source rock in the C sag began to generate hydrocarbon (Ro=0.5%) at about 51 Ma,reached the hydrocarbon generation peak(Ro=1%) at about 42 Ma, and the high maturity (Ro=1.3%) at about 17 Ma. (3)Comparatively,maturity of the Liushagang Formation source rock of Well Wei1, in the deep water exploration area is higher and the hydrocarbon generation capacity is stronger,so the deep water exploration area has more cheerful prospect.
- burial history /
- thermal history /
- maturity history /
- basin modeling /
- Weixinan depression

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References

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