Orignal Article

The axial channel provenance system and natural gas accumulation of the Upper Miocene Huangliu Formation in Qiongdongnan Basin, South China Sea

  • XIE Yuhong ,
  • LI Xushen ,
  • FAN Caiwei ,
  • TAN Jiancai ,
  • LIU Kun ,
  • LU Yi ,
  • HU Wenyan ,
  • LI Hu ,
  • WU Jie
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  • Zhanjiang Branch of CNOOC Ltd., Zhanjiang 524057, China

Online published: 2016-11-02

Abstract

Based on the data of regional outcrop observation, high-precision 3-D seismic detection and wellbore rock-electricity, this paper researched macro-water distribution, seismic architecture of sedimentary-filling, rock composition, heavy mineral assemblage, and zircon age. The axial channel provenance system and accumulation of natural gas of the Upper Miocene Huangliu Formation in the Qiongdongnan Basin was analyzed. The research showed that axial channels deposits were provided with two depression stages, multiple provenances, and gravity flows by bottom current rework. Early channels sandstone with small size and formation overpressure was mainly from terrigenous material of southwest drainage system in Hainan uplift, while Qiupen River in the central Kunsong uplift was the primary provenance of late channels sandstone with large scale of sediments, good continuity and normal formation pressure. There are three types of axial channel sandstone traps: litho-stratigraphic, lithologic and tectono-stratigraphic trap. Natural gas of early channels was driven by deep overpressure and vertically migrated into reservoir along fissures, while natural gas of late channels lateral migrated from west to east.

Cite this article

XIE Yuhong , LI Xushen , FAN Caiwei , TAN Jiancai , LIU Kun , LU Yi , HU Wenyan , LI Hu , WU Jie . The axial channel provenance system and natural gas accumulation of the Upper Miocene Huangliu Formation in Qiongdongnan Basin, South China Sea[J]. Petroleum Exploration and Development, 2016 , 43(4) : 521 -528 . DOI: 10.11698/PED.2016.04.03

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