Late leaching under deep burial conditions: A case study from the Miocene Zhujiang carbonate reservoir, Soutnh China Sea

U. Sattler; V. Zampetti; W. Schlager; A.M. Immenhauser

doi:10.1016/j.marpetgeo.2004.05.005

Late leaching under deep burial conditions: A case study from the Miocene Zhujiang carbonate reservoir, Soutnh China Sea

U. Sattler, V. Zampetti, W. Schlager, A.M. Immenhauser

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

The Zhujiang carbonates are the hydrocarbon reservoir rock of the Liuhua 11-1 field. They comprise three porous zones of around 20 m intercalated with tight zones, parallel to bedding. Thin-section, cathodoluminescence and stable-isotope data were combined with well-log information in order to investigate the origin and spatial distribution of the abundant porosity. The vast majority of pores in the porous zones was generated or overprinted in deep burial settings by late leaching. Two tight zones, however, lack this porosity, because of meteoric cementation and increased compaction and related calcite precipitation prior to late leaching. We propose that migrating corrosive fluids were diverted along bedding-parallel flow barriers of the tight zones and leached the intervals in-between ( = the porous zones) thereby emphasizing the depositional pattern. © 2004 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	977-992
Journal	Marine and Petroleum Geology
Volume	21
DOIs	https://doi.org/10.1016/j.marpetgeo.2004.05.005
Publication status	Published - 2004

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title = "Late leaching under deep burial conditions: A case study from the Miocene Zhujiang carbonate reservoir, Soutnh China Sea",

abstract = "The Zhujiang carbonates are the hydrocarbon reservoir rock of the Liuhua 11-1 field. They comprise three porous zones of around 20 m intercalated with tight zones, parallel to bedding. Thin-section, cathodoluminescence and stable-isotope data were combined with well-log information in order to investigate the origin and spatial distribution of the abundant porosity. The vast majority of pores in the porous zones was generated or overprinted in deep burial settings by late leaching. Two tight zones, however, lack this porosity, because of meteoric cementation and increased compaction and related calcite precipitation prior to late leaching. We propose that migrating corrosive fluids were diverted along bedding-parallel flow barriers of the tight zones and leached the intervals in-between ( = the porous zones) thereby emphasizing the depositional pattern. {\textcopyright} 2004 Elsevier Ltd. All rights reserved.",

author = "U. Sattler and V. Zampetti and W. Schlager and A.M. Immenhauser",

year = "2004",

doi = "10.1016/j.marpetgeo.2004.05.005",

language = "English",

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TY - JOUR

T1 - Late leaching under deep burial conditions: A case study from the Miocene Zhujiang carbonate reservoir, Soutnh China Sea

AU - Sattler, U.

AU - Zampetti, V.

AU - Schlager, W.

AU - Immenhauser, A.M.

PY - 2004

Y1 - 2004

N2 - The Zhujiang carbonates are the hydrocarbon reservoir rock of the Liuhua 11-1 field. They comprise three porous zones of around 20 m intercalated with tight zones, parallel to bedding. Thin-section, cathodoluminescence and stable-isotope data were combined with well-log information in order to investigate the origin and spatial distribution of the abundant porosity. The vast majority of pores in the porous zones was generated or overprinted in deep burial settings by late leaching. Two tight zones, however, lack this porosity, because of meteoric cementation and increased compaction and related calcite precipitation prior to late leaching. We propose that migrating corrosive fluids were diverted along bedding-parallel flow barriers of the tight zones and leached the intervals in-between ( = the porous zones) thereby emphasizing the depositional pattern. © 2004 Elsevier Ltd. All rights reserved.

AB - The Zhujiang carbonates are the hydrocarbon reservoir rock of the Liuhua 11-1 field. They comprise three porous zones of around 20 m intercalated with tight zones, parallel to bedding. Thin-section, cathodoluminescence and stable-isotope data were combined with well-log information in order to investigate the origin and spatial distribution of the abundant porosity. The vast majority of pores in the porous zones was generated or overprinted in deep burial settings by late leaching. Two tight zones, however, lack this porosity, because of meteoric cementation and increased compaction and related calcite precipitation prior to late leaching. We propose that migrating corrosive fluids were diverted along bedding-parallel flow barriers of the tight zones and leached the intervals in-between ( = the porous zones) thereby emphasizing the depositional pattern. © 2004 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.marpetgeo.2004.05.005

DO - 10.1016/j.marpetgeo.2004.05.005

M3 - Article

SN - 0264-8172

VL - 21

SP - 977

EP - 992

JO - Marine and Petroleum Geology

JF - Marine and Petroleum Geology

ER -

Late leaching under deep burial conditions: A case study from the Miocene Zhujiang carbonate reservoir, Soutnh China Sea

Abstract

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