Liuhua 11-1 Field, South China Sea: A shallow carbonate reservoir developed using ultrahigh-resolution 3-D seismic, inversion, and attribute-based reservoir modeling

Story, Chip; Peng, Patrick; Heubeck, Christoph; Sullivan, Claire; Lin, Jian Dong

doi:10.1190/1.1438721

Cited by 28 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar carbonate dissolution fluid escape structures have been documented by Story et al . () in the Dongsha Uplift, in the northern SCS where the magmas intruded into the basement (Lüdmann & Wong, ). The fluids involved in the formation of the pipes likely include carbon dioxide and hot water exsolved from magma, heated pore fluids from the host sediments, perhaps as a result of contact metamorphism, and carbon dioxide and pore water produced from carbonate dissolution (Cartwright et al ., ).…”

Section: Discussionmentioning

confidence: 99%

“…The magmatic activity and related hydrothermal fluid systems led to dissolution of Early Miocene carbonates and this in turn promoted overburden collapse (Gong, ). This dissolution‐collapse mechanism has previously been linked to the formation of gas chimney collapse features (pipe structures) and secondary porosity in the Dongsha Uplift (Story et al ., ; Sattler et al ., ). Moreover, the magmatic activity is coupled to high heat flow in the study area (Sun et al ., ).…”

Section: Geological and Depositional Settingmentioning

confidence: 98%

See 1 more Smart Citation

Focused fluid flow systems of the Zhongjiannan Basin and Guangle Uplift, South China Sea

Sun

Cartwright

et al. 2012

Basin Research

View full text Add to dashboard Cite

In this article, we document a large number of focused fluid escape structures using high quality 2D seismic reflection data and multibeam bathymetry data from a poorly known area at the intersection of the northern South China Sea (SCS) and the western SCS. Three types of focused fluid escape systems are identified and described: mud volcanoes, pipes and associated pockmarks. The mud volcanoes occur singly or as clustered groups. The overpressure driving the mud volcanism is argued herein to be related to the generation of thermogenic hydrocarbons. The clustered distributions are related to localized tectonic uplift in the basin. Pipes mainly occur within the Guangle Uplift or accompany the mud volcano clusters. The pipes located within the Guangle Uplift are attributed to carbonate dissolution caused by hydrothermal fluids. Fluids ascended through these structures and were expelled at the palaeo-seabed or present seabed forming palaeo-pockmarks and present-day pockmarks. Some 'mega-pockmarks' show evidence of enlargement due to bottom currents. The marginal basins of the SCS are petroliferous, with attention gradually shifting to the deep-water area. Our results show that fluid migration must be taken into account when assessing seabed stability. This analysis also improves our understanding the petroleum geology in the study area, and is also useful for predicating where chemosynthetic ecosystems may be located.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Geological and Depositional Settingmentioning

confidence: 98%

Focused fluid flow systems of the Zhongjiannan Basin and Guangle Uplift, South China Sea

Sun

Cartwright

et al. 2012

Basin Research

View full text Add to dashboard Cite

show abstract

“…For the studied platform we see two problems with the exposure interpretation. First, in the youngest parts of the platform we found no seismic evidence of exposure in the form of lowstand systems tracts, erosional terraces or dolinas (Moldovanyi, Wall, & Zhang, 1995;Story, Peng, Heubeck, Sullivan, & Dong Lin, 2000). On the contrary, the uppermost part of the platform shows very smooth reflections (particularly well displayed in time slices) that change upward from horizontal to convex.…”

Section: Drowning and Subaerial Exposurementioning

confidence: 90%

Architecture and growth history of a Miocene carbonate platform from 3D seismic reflection data; Luconia province, offshore Sarawak, Malaysia

Zampetti

Schlager

Konijnenburg

et al. 2004

Marine and Petroleum Geology

128

View full text Add to dashboard Cite

“…Several investigations have documented the coexistence of reduced reflectivity or blurred seismic images and fluid migration pathways in sediments without having the influence of gas independently verified (Abrams, 1992;Traynor and Sladen, 1997;Heggland, 1998;Story et al, 2000;and Tingdahl et al, 2001). …”

Section: Seismic Characteristics Of Fluid Leakagementioning

confidence: 98%

The lack of relationship between overpressure and porosity in North Sea and Haltenbanken shales

Teige

Hermanrud

Wensaas

et al. 1999

Marine and Petroleum Geology

View full text Add to dashboard Cite

All rights reserved. No part of this publication may be reproduced or transmitted, in any form or by any means, without permission.Cover: Inger Sandved Anfinsen. Printed in Norway: AiT e-dit AS, Oslo, 2008. Produced in co-operation with Unipub AS. The thesis is produced by Unipub AS merely in connection with the thesis defence. Kindly direct all inquiries regarding the thesis to the copyright holder or the unit which grants the doctorate. Unipub AS is owned by The University Foundation for Student Life (SiO) III CONCLUSIONS / IMPLICATIONSThis dissertation was motivated by the realization that four concepts, which are too simplistic, are widely assumed in the petroleum industry:First, mechanical compaction and associated disequilibrium compaction are frequently assumed to be the main mechanism for overpressure formation, although data are rarely given to support this assumption. This thesis concludes that neither the North Sea nor the Haltenbanken shales compacted mechanically at moderate to deep burial. Therefore, high overpressures in these rocks were not caused by disequilibrium compaction, but more likely by diagenetic processes that were largely unaffected by fluid pressures. Traditional seismic and log-based pore pressure detection methods in these areas should be expected to result in under-prediction of fluid overpressures because the porosities are not higher in overpressured shales than in normally pressured shales.Second, observations of zods (zones of deteriorated seismic signals; at times termed gas chimneys) are often interpreted as evidence of hydrocarbon leakage. This thesis concludes that the occurrence of zods may identify hydrocarbon leakages and where pressure compartments leak. However, prior to interpreting these zones as hydrocarbon leakage, the interpreter must be aware of the various geological processes and non-geological origins that could cause such velocity variations: (a) hydrocarbon leakage, (b) leakage of water with dissolved gas (that could create an inhomogeneous gas saturation), (c) fault or fracture zones themselves, (d) fluid leakage above fault(s) or fault junction, or (e) data quality issues. As a result, applications of zods in hydrocarbon prospect evaluation should be performed more carefully than what is often seen in the industry today.Third, the consequences of high overpressures are often assumed to be hydrocarbon leakage through the caprock -either because of hydro-fracturing or because high water pressure force oil or gas through membrane seals. This thesis concludes that high overpressures are compatible with hydrocarbon preservation. Vertical water leakage from the apex of a trap may take place while oil and gas are retained by capillary forces within the structure. This result is consistent with the fact that several of the largest oil fields on IV the Norwegian Continental Shelf (Statfjord, Gullfaks, Snorre, Visund, and Kvitebjørn) are highly overpressured and leaky, and yet contain vast amounts of oil and gas.Finally, vertical leakage is often assumed to occu...

show abstract

Liuhua 11-1 Field, South China Sea: A shallow carbonate reservoir developed using ultrahigh-resolution 3-D seismic, inversion, and attribute-based reservoir modeling

Cited by 28 publications

References 0 publications

Focused fluid flow systems of the Zhongjiannan Basin and Guangle Uplift, South China Sea

Focused fluid flow systems of the Zhongjiannan Basin and Guangle Uplift, South China Sea

Architecture and growth history of a Miocene carbonate platform from 3D seismic reflection data; Luconia province, offshore Sarawak, Malaysia

The lack of relationship between overpressure and porosity in North Sea and Haltenbanken shales

Contact Info

Product

Resources

About