A well-preserved 250 million-year-old oil accumulation in the Tarim Basin, western China: Implications for hydrocarbon exploration in old and deep basins

Zhu, Guangyou; Zhang, Shuichang; Liu, Keyu; Yang, Haijun; Zhang, Bin; Jin, Sheng; Zhang, Yaguang

doi:10.1016/j.marpetgeo.2012.12.001

Cited by 38 publications

(19 citation statements)

References 17 publications

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“…Presently, they are embedded in very complex geological structures and have complex lithologies. Due to limited exploration, the hydrocarbon accumulations in the Precambrian strata are not well understood (Zhu et al, 2013a). For the past 20 years, although dozens of primary oil and gas fields or oil and gas shows have been discovered in Precambrian reservoirs (Parfenov et al, 1995;Kuznetsov, 1995Kuznetsov, , 1997Migurskiy, 1997), only a few commercial primary oil and gas accumulations (source rocks and reservoir rocks, all Precambrian) have been found on the Siberian Platform (Meyerhoff, 1980;Fowler and Douglas, 1987).…”

Section: Introductionmentioning

confidence: 99%

Giant gas discovery in the Precambrian deeply buried reservoirs in the Sichuan Basin, China: Implications for gas exploration in old cratonic basins

Zhu

Wang

Xie

et al. 2015

Precambrian Research

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133

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Section: Introductionmentioning

confidence: 99%

Giant gas discovery in the Precambrian deeply buried reservoirs in the Sichuan Basin, China: Implications for gas exploration in old cratonic basins

Zhu

Wang

Xie

et al. 2015

Precambrian Research

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133

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“…As a matter of fact, hydrocarbon preservation's lower temperature limit and effective reservoir burial depth's lower limit may vary largely due to different basin properties, or maybe these lower limits refer to a wide depth range (Zhu et al, 2006;Ma et al, 2007), and we can not give a definite answer by now. In addition, mutual complement between burial time and burial depth is crucial as well (Zhu et al, 2012a;2013a), which may exert great influence on the lower depth limit and result in complexity and diversification of deeplayer fluid phases (Zhang et al, 2011c;Yang et al, 2014;Wang et al, 2013;Zhu et al, 2011a;2013b;Chen et al, 2012). Tarim Basin marine deposit combination was developed mainly in the Paleozoic era, and it has undergone polycyclic superimposition and reconstruction, leading to its complicated oil and gas distribution (Yang et al, 2011;Zhu et al, 2013c;2013d).…”

Section: Introductionmentioning

confidence: 99%

Geology and Hydrocarbon Accumulation of the Large Ultra-Deep Rewapu Oilfield in Tarim Basin, China

Zhu

Liu

Zheng

et al. 2015

Energy Exploration & Exploitation

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Over the past five years, oil and gas exploration to marine facies carbonate rock in China took on a fast-growing tendency, and a lot of large-scale oil and gas fields were discovered in succession. Particularly in the north of Tarim Basin, the large-scale Rewapu oil field was recently discovered in the Ordovician carbonate rock layer system with buried depth of 7,000 meters, manifesting that a significant potential of exploration exists in Tarim Basin's deep layer and ultra deep layer of Tarim basin. The results indicate that reservoirs of Rewapu oilfield are low porosity and low permeability layers karst reservoirs, reservoir temperature is around at 160 ℃ with oil, and the crude oil comes from the upper Ordovician source rock of the Manjaer depression. The hydrocarbon accumulation time is in the Late Permian, and since the Triassic sedimentation, the reservoir is in the continuous process of burying. It belongs to the old oil and gas system. Due to low geothermal gradient and late quick deep burial, oil reservoir has yet to be cracked, so well-preserved old oil reservoir can be discovered at the depth of 7000 m. The Ordovician carbonate reservoir in Rewapu was a fracture-cavity oil reservoir, and the oil and gas distribution and enrichment are controlled not by the local structure, but by the distribution and the development degree of Ordovician carbonate reservoir. The reservoirs of Rewapu block are mainly distributed in the Ordovician Yijianfang formation and at the top Yingshan formation, and the reservoir development degree was controlled by the karstification, the degree of fracture development and the sedimentation facies, concentrating into belts in plane and not controlling by the depth vertically. The overlying strata are limestone of Tumuxiuke formation and marls and limestone of Sangtamu formation in the upper Ordovician. Rewapu oil reservoir features stratified oil and mainly contains normal oil with low viscosity and high wax. Research results show that Ordovician reservoirs in Rewapu block have relatively large depth of burial, but they are still favorable in quality and sit along the path for the oil and gas's northward migration. Therefore, this block has immense resources potential and boasts good exploration and development outlook. In this paper, we study Rewapu block oil reservoir's geological features and hydrocarbon accumulation mechanism, which is of important significance for directing the exploration to oil and gas at the deep layer and ultra deep layer of Tarim Basin.

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“…More than thirty oil fields (e.g., Dawanqi, Lunnan, Tahe, Tazhong, Hetian and Bashituo) have been discovered throughout the Tarim Basin during the past three decades (Xu et al, 2004;Zhao et al, 2004). More recently discovered is the deeply buried (>6000 m) (>19,685 ft) Early Paleozoic carbonate Yijianfang Formation in the Halahatang depression of the northern Tarim Basin that has a current estimated reserve of >4 Bbbls of oil (Zhu et al, 2013a), which supports the reported resource potential within the Tarim Basin (Li, 2009;Xu et al, 2004). However, both the source and timing of hydrocarbon generation and accumulation in the Tarim Basin remain debated (Chang et al, 2013a;Li, 2009;Li et al, 2010;Liao et al, 2010;Tian, 2005;Xiao et al, 2012).…”

Section: Introductionmentioning

confidence: 65%

Petroleum evolution within the Tarim Basin, northwestern China: Insights from organic geochemistry, fluid inclusions, and rhenium–osmium geochronology of the Halahatang oil field

Gao¹,

Shen²,

Selby³

et al. 2020

Bulletin

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CV Associés Engineering, France for the fluid inclusion analysis and PVTx modelling. DS acknowledges the Total Endowment Fund and the Dida Scholarship from CUG Wuhan. Xiang Ge was supported by a postgraduate award from the China Scholarship Council (CSC). We acknowledge the analytical support of Antonia Hofmann, Geoff Nowell and Chris Ottley. Lastly, we thank Barry J. Katz, Ling Gao and two anonymous reviewers for their constructive reviews which helped improve the paper.

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A well-preserved 250 million-year-old oil accumulation in the Tarim Basin, western China: Implications for hydrocarbon exploration in old and deep basins

Cited by 38 publications

References 17 publications

Giant gas discovery in the Precambrian deeply buried reservoirs in the Sichuan Basin, China: Implications for gas exploration in old cratonic basins

Giant gas discovery in the Precambrian deeply buried reservoirs in the Sichuan Basin, China: Implications for gas exploration in old cratonic basins

Geology and Hydrocarbon Accumulation of the Large Ultra-Deep Rewapu Oilfield in Tarim Basin, China

Petroleum evolution within the Tarim Basin, northwestern China: Insights from organic geochemistry, fluid inclusions, and rhenium–osmium geochronology of the Halahatang oil field

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