东濮凹陷文东地区沙三段层序地层学特征

廖远涛; 张世民; 夏鹏远; 何汉坤; 王家豪

Volume 30 Issue 2

Mar. 2005

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Article Navigation > Earth Science > 2005 > 30(2): 133-139

LIAO Yuan-tao, ZHANG Shi-min, XIA Peng-yuan, HE Han-kun, WANG Jia-hao, 2005. Sequence Stratigraphy of Es3 Member in Wendong District, Dongpu Depression. Earth Science, 30(2): 133-139.

Citation:

LIAO Yuan-tao, ZHANG Shi-min, XIA Peng-yuan, HE Han-kun, WANG Jia-hao, 2005. Sequence Stratigraphy of Es₃ Member in Wendong District, Dongpu Depression. Earth Science, 30(2): 133-139.

LIAO Yuan-tao, ZHANG Shi-min, XIA Peng-yuan, HE Han-kun, WANG Jia-hao, 2005. Sequence Stratigraphy of Es3 Member in Wendong District, Dongpu Depression. Earth Science, 30(2): 133-139.

Citation:

LIAO Yuan-tao, ZHANG Shi-min, XIA Peng-yuan, HE Han-kun, WANG Jia-hao, 2005. Sequence Stratigraphy of Es₃ Member in Wendong District, Dongpu Depression. Earth Science, 30(2): 133-139.

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Sequence Stratigraphy of Es₃ Member in Wendong District, Dongpu Depression

1.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
Gas Exploration Department of Zhongyuan Oilfield Branch Company, SINOPEC, Puyang 457001, China
3.
No.1 Production Factory of Zhongyuan Oilfield Company, SINOPEC, Puyang 457071, China

Received Date: 2004-07-15
Publish Date: 2005-03-25

Abstract

Abstract

Wendong district is a very important exploration area in Dongpu depression,and the sequence stratigraphy study is critical to find subtle trap and increase reserve and production in this district. Based on the analysis of high-resolution sequence stratigraphy in well logs (including core facies analysis,single well sequence analysis and cross wells sequence division),and interpretation of sequence stratigraphy in seismic sections,the Es₃ member in Wendong district,Dongpu depression is divided into four third-order sequences: SQ₁,SQ₂,SQ₃ and SQ₄. Four main sedimentary systems can be identified in Es₃. They are lacustrine-delta system,lacustrine system,gravity flow system and fan delta system. The former opinions show that shallow lake developed on the Wendong slope,gravity flow system developed in topical place and fan delta system developed in the east reigion and regressed gradually in SQ₁. From SQ₂ to SQ₄,lacustrine system (including lacustrine beach,semideep lake,deep lake and saline lake) and the front of lacustrine delta developed on the Wendong slope; at the same time,fan-delta system developed in the east reigion and the scope became small. On the basis of the analysis of sequence stratigraphy and the depositional system,the front sand body of the lacustrine delta,and the sand bodies of the fan-delta system and gravity flow are favorable targets to explore lithologic reservoir and lith-structural reservoir in Wendong district.
- sequence stratigraphy,
- sedimentary system,
- Wendong distict,
- Dongpu depression

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References(21)

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