HYDROCARBON ACCUMULATION PATTERN OF WENCHANG B SAG, WESTERN PEARL RIVER MOUTH BASIN IN THE NORTHERN SOUTH CHINA SEA

LI Hui; ZHANG Yingzhao; NIU Cuiyin; LU Jiang; ZHOU Gang; ZHAN Yeping

doi:10.16562/j.cnki.0256-1492.2015.04.014

2015 Vol. 35, No. 4

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Article navigation > Marine Geology & Quaternary Geology > 2015 > 35(4): 133-140

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LI Hui, ZHANG Yingzhao, NIU Cuiyin, LU Jiang, ZHOU Gang, ZHAN Yeping. HYDROCARBON ACCUMULATION PATTERN OF WENCHANG B SAG, WESTERN PEARL RIVER MOUTH BASIN IN THE NORTHERN SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2015, 35(4): 133-140. doi: 10.16562/j.cnki.0256-1492.2015.04.014

Citation:

LI Hui, ZHANG Yingzhao, NIU Cuiyin, LU Jiang, ZHOU Gang, ZHAN Yeping. HYDROCARBON ACCUMULATION PATTERN OF WENCHANG B SAG, WESTERN PEARL RIVER MOUTH BASIN IN THE NORTHERN SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2015, 35(4): 133-140. doi: 10.16562/j.cnki.0256-1492.2015.04.014

HYDROCARBON ACCUMULATION PATTERN OF WENCHANG B SAG, WESTERN PEARL RIVER MOUTH BASIN IN THE NORTHERN SOUTH CHINA SEA

Research Institute, Zhanjiang Branch of CNOOC Ltd., Guangdong 524057, China

Received Date: 11 December 2014

Revised Date: 10 January 2015

Abstract

Abstract

Upon tectonic and sedimentary evolution, there are four kinds of hydrocarbon accumulation patterns in the Wenchang Sag of the Pearl River Mouth Basin. ① In the southern steep slope belt, hydrocarbon migrated vertically through deltaic sands and accumulated in the Paleogene fault-structures. ② In the southern steep slope belt, hydrocarbon migrated vertically through sands and fault and accumulated in the Neogene anticline structures. ③ In the northern gentle slope belt, hydrocarbon migrated laterally through sands and accumulate in the Paleogene stratigraphic traps. ④ In the northern high area, hydrocarbon migrated laterally for a long distance through sand and fault and accumulated in the Neogene anticline traps. The characteristics of each hydrocarbon accumulation pattern, which includes source, migration, accumulation and so on, are analyzed and the main controlling factors discussed. And the prediction of favorable traps have been proved by drilling.
- Wenchang B sag /
- tectonic evolution /
- hydrocarbon accumulation pattern /
- main controlling factor of hydrocarbon accumulation

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References

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