Late leaching under deep burial conditions: a case study from the Miocene Zhujiang Carbonate Reservoir, South China Sea

Sattler, U.; Zampetti, Valentina; Schlager, Wolfgang; Immenhauser, Adrian

doi:10.1016/j.marpetgeo.2004.05.005

Cited by 59 publications

(43 citation statements)

References 20 publications

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“…Five types of reef developed upon the Xisha carbonate platform: patch reef, platform-edge reef, pinnacle reef, atoll reef, and horseshoe reef. The seismic facies of reefs in this area are characterized by chaotic bedding, discontinuous internal reflections, chaotic or blank reflections, mounded reflections, and apparent amplitude anomalies, similar to the seismic facies of the Zengmu Basin, Qiongdongnan Basin, and Pearl River Mouth Basin (Erlich et al, 1990;Sattler et al, 2004;Wu et al, 2008).…”

Section: Seismic Characteristicsmentioning

confidence: 66%

Seismic characteristics and development of the Xisha carbonate platforms, northern margin of the South China Sea

Fuliang³

et al. 2011

Journal of Asian Earth Sciences

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Section: Seismic Characteristicsmentioning

confidence: 66%

Seismic characteristics and development of the Xisha carbonate platforms, northern margin of the South China Sea

Fuliang³

et al. 2011

Journal of Asian Earth Sciences

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“…The diagenesis such as mechanical compaction, intergranular pressure solution, cementation (Heydari, 2000), thermochemical sulfate reduction Zhu et al, 2006;Hill, 1995), dissolution produced by corrosive diagenetic fluids of diverse nature (Davies et al, 2006;Sattler et al, 2004;Cheng et al, 2002;Morad et al, 2000;Huang and Song, 1997;Qing and Mountjoy, 1992;Giles and Marshall, 1986), burial dolomitization (Esteban and Taberner, 2003;Lee and Friedman, 1987) and tectonic hydrothermal dolomitization (Davies et al, 2006) during the deep burial condition, can modify the secondary vug created during subaerial karstification and develop new secondary vugs as well. It is disputable that the ultimate vug of these carbonates is determined by subaerial karstification or deep burial diagenesis (Heydari, 2003;Dickson and Saller, 1995).…”

Section: Introductionmentioning

confidence: 99%

Characteristics of subaerial karstification and late reconstruction in the Dengying Formation, Sichuan basin, southwestern China

Wang

Liu

et al. 2010

J. Earth Sci.

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Tectonic uplift at the end of Sinian resulted in the denudation of the Dengying (灯影) Formation on a different scale and the development of a great number of secondary dissolution vugs beneath the unconformity between Sinian and Cambrian. Geological and geochemical characteristics such as the development of caves, sinkholes, karst tubes and weathering crust, abrupt depletion and negative deflection of δ 13 C and δ 18 O in country rock and vug filling toward unconformity surface suggest that subaerial karstification is responsible for the development of secondary karst vugs within 150 m or so beneath the unconformity surface. This kind of secondary dissolution vug was partially or completely filled by different stage dolomite, calcite, quartz and bitumen during the later deep burial and uplift. Facts such as the obvious difference in δ 13 C and δ 18 O of the filling in the subaerial karst vug from the country rock and the value of δ 13 C and δ 18 O of the filling increasing or decreasing with that of the country rocks, suggest that the hydrothermal fluid charged in vugs is allogenic fluid. Subaerial karstification vug acted as a conduit for allogenic corrosive fluid which can create new secondary vugs and enlarge previous karst vugs. corrosive fluid introduction and petroleum thermal cracking, caused contraction or enlargement of the subaerial karstification vugs and the development of new secondary vugs during the deep burial and uplift. The ultimate vug of deep burial dolomitite is determined not only by fluid charge, dissolution, mineral precipitant, and petroleum thermal cracking during the deep burial and tectonic uplift, but also by Characteristics of Subaerial Karstification and Late Reconstruction in the Dengying Formation, Sichuan Basin 291 the amount of initial secondary dissolution vugs created by subaerial karstification.

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“…Reef carbonate is also an important reservoir type in the deep water area of the north margin of the SCS Zampetti et al, 2005;Sattler et al, 2004). Deepwater basins of the SCS lie in the tropic and subtropic area, suitable for reef development.…”

Section: Reservoirsmentioning

confidence: 99%

“…The reef carbonate can be divided into 8 epochs according to its deposition and digenetic evolution process: reef formed in early phase, exposure and corrosion in early period, reef formed in late period, exposure and corrosion in middle period, hydrocarbon accumulation in early period, corrosion in late period, hydrocarbon accumulation in late period, and regional groundwater corrosion. The reservoir is limestone of the Zhujiang Formation in the Miocene and characterized by high porosity and high permeability (Zampetti et al, 2005;Sattler et al, 2004).…”

Section: Reservoirsmentioning

confidence: 99%

“…The seismic profiles show that there exists a very thick Tertiary stratum. Since the discovery of the giant LH11-1 oil field (Yue et al, 2005;Zampetti et al, 2005;Sattler et al, 2004), especially the LW3-1 gas field, the deepwater basins of the northern SCS have been considered potential hydrocarbon basins . This article mainly discusses the petroleum system of the deepwater basins in the northern SCS based on the seismic data and comparison with typical deepwater hydrocarbon reservoirs in the world.…”

Section: Introductionmentioning

confidence: 99%

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Petroleum system in deepwater basins of the northern South China Sea

Han

et al. 2009

J. Earth Sci.

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The northern South China Sea margin has experienced a rifting stage and a post-rifting stage during the Cenozoic. In the rifting stage, the margin received lacustrine and shallow marine facies sediments. In the post-rifting thermal subsidence, the margin accumulated shallow marine facies and hemipelagic deposits, and the deepwater basins formed. Petroleum systems of deepwater setting have been imaged from seismic data and drill wells. Two kinds of source rocks including Paleogene lacustrine black shale and Oligocene-Early Miocene mudstone were developed in the deepwater basin of the South China Sea. The deepwater reservoirs are characterized by the deep sea channel fill, mass flow complexes and drowned reef carbonate platform. Profitable capping rocks on the top are mudstones with huge thickness in the post-rifting stage. Meanwhile, the faults developed during the rifting stage provide a migration path favourable for the formation of reservoirs. The analysis of seismic and drilling data suggests that the joint structural and stratigraphic traps could form giant hydrocarbon fields and hydrocarbon reservoirs including syn-rifting graben subaqueous delta, deepwater submarine fan sandstone and reef carbonate reservoirs. KEY WORDS: deepwater reservoir, source rock, petroleum system, northern South China Sea.

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Late leaching under deep burial conditions: a case study from the Miocene Zhujiang Carbonate Reservoir, South China Sea

Cited by 59 publications

References 20 publications

Seismic characteristics and development of the Xisha carbonate platforms, northern margin of the South China Sea

Seismic characteristics and development of the Xisha carbonate platforms, northern margin of the South China Sea

Characteristics of subaerial karstification and late reconstruction in the Dengying Formation, Sichuan basin, southwestern China

Petroleum system in deepwater basins of the northern South China Sea

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