Reservoir characteristics and their effects on hydrocarbon accumulation in lacustrine turbidites in the Jiyang Super-depression, Bohai Bay Basin, China

Chen, Dongxia; Pang, Xiongqi; Jiang, Zhenxue; Zeng, Jianhui; Qiu, Nansheng; Li, Maowen

doi:10.1016/j.marpetgeo.2008.03.003

Cited by 74 publications

(23 citation statements)

References 20 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, Garcia-Castellanos (2006) has shown that endorheic lakes can be long-lived in rapidly subsiding basins, and they can accumulate large amounts of clastic sediment. Lacustrine turbiditic sequences are analyzed in details by Chen et al (2009) and Caineng et al (2010), but as the ancient lakes studied in these papers had persistent connection to the sea, their depositional sequences proved to be similar to the well-known model for marine basins.…”

Section: Introductionmentioning

confidence: 97%

Water-level changes and their effect on deepwater sand accumulation in a lacustrine system: a case study from the Late Miocene of western Pannonian Basin, Hungary

Uhrin¹,

Sztanó

2011

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

Major deepwater sand accumulations are known to be connected to sea-level lowstands in marine basins, due to the relative lack of accommodation space on the shelf. This model was tested for the Late Miocene Lake Pannon, a large endorheic lake depositing a sedimentary succession up to 3-4 km thick. The progradation of the shelf between 9.7 and 6 Ma was tracked along a 2D seismic network. The shelf-edge trajectory indicates continuous, moderate lake-level rise between 9.7 and 9 Ma. This is followed by alternating intervals of quasi-steady and rapidly rising relative lake level with a period of ca. 250 ky. However, due to the lack of significant lake-level drops, no third-order sequence boundary was identified in the studied time span (9.7-6 Ma). The sand ratio of the deepwater deposits does not show strong correlation with these lakelevel changes; moreover, the units deposited under rising lake-level conditions generally contain slightly larger proportion of sand. These features can be explained by the climatic origin of water-level rises: increasing precipitation enhances not only water inflow, but also sediment influx, which can overwhelm the well-known effect of accommodation space on the sand transport toward the deep water. The results suggest that shelf-margin trajectory might not be an efficient tool for predicting deepwater accumulations of sand in endorheic lacustrine basins.

show abstract

Section: Introductionmentioning

confidence: 97%

Water-level changes and their effect on deepwater sand accumulation in a lacustrine system: a case study from the Late Miocene of western Pannonian Basin, Hungary

Uhrin¹,

Sztanó

2011

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

show abstract

“…Otherwise, T 7 boundary is a seismic surface characterized by moderate to low frequency and moderate reflection amplitude. Also, the seismic reflection terminations such as truncation, toplap, onlap, and downlap can be found as good indicators for the above sequence boundaries (Catuneanu 2006;Vail et al 1977;Weimer and Link 1991). Furthermore, in each third-order sequence, three systems tracts can be identified by the integration of stratal stacking patterns, types of bounding surfaces, and base level changes, i.e., …”

Section: Geologic Settingmentioning

confidence: 99%

“…Sedimentary characterization of sublacustrine fans plays a crucial role in controlling reservoir formation and hydrocarbon accumulation (Bellaiche et al 1994;Chen et al 2009;Dasgupta 2002). A clear understanding of sedimentary characteristics, facies relationships, tectonic responses, and reservoir qualities is of importance for exploring and exploiting this kind of reservoir efficiently.…”

Section: Introductionmentioning

confidence: 99%

Fine-grained and coarse-grained Paleogene sublacustrine fan systems in Fushan Depression, Beibuwan Basin, South China Sea: implications for sedimentary characteristics and depositional processes

et al. 2016

View full text Add to dashboard Cite

The Fushan Depression is a hydrocarbon-bearing half-graben rift sub-basin located in the southeast of the Beibuwan Basin, South China Sea. The sublacustrine fan systems in the Paleogene Liushagang Formation have recently become important targets in this depression, while the depositional process and detailed characterization of these systems are little known. Analysis of drilled cores, wire-line logs, and 3-D seismic survey suggest that the Fushan Depression develops two different types of sublacustrine fan systems. The fine-grained sublacustrine fan system located in the western area is mainly composed of fine-to medium-grained light gray sandstones interbedded with layers of silt-rich shales. This kind of sediment slumped from the distal bar of the delta front due to high sediment pore pressures at the slope edge as well as the activity of the Meitai Fault. By contrast, the coarsegrained sublacustrine fan system formed in the eastern area is characterized by medium to coarse gray sandstones and conglomerates with the development of various deformed lenticular beddings, deformed pillow structures, and micro-faults. Further study suggests that its sedimentation process is closely related to the geomorphology of flexure slope-break belt. The slope changed abruptly from 3°~5°to 7°~9°across the flexure slope point, increasing the accommodation space under the flexure belt. The coarse-grained sublacustrine fan formed when coarse-grained sediment spillover the slope-break toward the increased accommodation space. As the reservoir quality of these sublacustrine fan systems is well controlled by the sedimentary characteristics and sedimentation processes, our results should be of great significance for the development of future exploration.

show abstract

“…Subtle petroleum traps have become an important target for exploration in the Bohai Bay Basin, eastern China (Gao et al, 2004;Li et al, 2004a;Niu et al, 2005;Chen et al, 2009) (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

“…No stratigraphic traps (stratigraphic overlap or truncation associated with unconformities) have been discovered to date. Previous work focused mainly on statistical analysis of location, scale and oil saturation as well as favorable sedimentary facies for the subtle traps in the depression (Zheng et al, 2002;Gao et al, 2004). It was suggested that the petrophysical properties of the surrounding rocks, reservoir quality, tectonic setting, as well as the depositional environments are essential factors controlling the formation of a subtle oil pool (Pang et al, 2003a;Zhang et al, 2003;Li et al, 2004a).…”

Section: Introductionmentioning

confidence: 99%

Molecular and isotopic evidence for mixed-source oils in subtle petroleum traps of the Dongying South Slope, Bohai Bay Basin

Li¹,

Pang²,

Jin³

et al. 2010

Marine and Petroleum Geology

Self Cite

View full text Add to dashboard Cite

Reservoir characteristics and their effects on hydrocarbon accumulation in lacustrine turbidites in the Jiyang Super-depression, Bohai Bay Basin, China

Cited by 74 publications

References 20 publications

Water-level changes and their effect on deepwater sand accumulation in a lacustrine system: a case study from the Late Miocene of western Pannonian Basin, Hungary

Water-level changes and their effect on deepwater sand accumulation in a lacustrine system: a case study from the Late Miocene of western Pannonian Basin, Hungary

Fine-grained and coarse-grained Paleogene sublacustrine fan systems in Fushan Depression, Beibuwan Basin, South China Sea: implications for sedimentary characteristics and depositional processes

Molecular and isotopic evidence for mixed-source oils in subtle petroleum traps of the Dongying South Slope, Bohai Bay Basin

Contact Info

Product

Resources

About