Caiyuan Dong

Machine learning-inspired process-based models for adsorption selectivity between CO2 and CH4 on coal

Wenrui Liu, Lei Hou, Derek Elsworth, Ze Deng et autres

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Hydrocarbon source correlation and multiphase accumulation in the northern Kuqa Thrust Belt: Implications from geochemical fingerprinting and tectono-thermal evolution of the Dibei Field, NW China

Caiyuan Dong, Liang Zhang, Jin Li, Chen Changchao

Abstract The Kuqa Depression, a prolific hydrocarbon province in China’s Tarim Basin, hosts a dual-source petroleum system with Jurassic coal-bearing and Triassic lacustrine strata. However, the origins and accumulation mechanisms of hydrocarbons in the Dibei Structural Belt remain contentious, particularly regarding contributions …

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Geological characteristics of Jurassic coal rock gas and evaluation of favorable zones in the northern structural belt of the Kuqa Depression, Tarim Basin, China

Zeqing Guo, Caiyuan Dong, Bin Wang, Zhenglian Pang et autres

The Kuqa Depression in the Tarim Basin has developed two sets of coal-bearing strata: the Triassic and the Jurassic. The Jurassic coals are characterized by multiple layers, large cumulative thickness, and a wide distribution area, providing a strong material basis for the …

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Research on Lithofacies Paleogeography and Caprock Evaluation of the Middle Cambrian in the Tarim Basin, NW China

Xueqiong Wu, Wei Yang, Dongmei Bo, Tianyu Ji et autres

Cambrian subsalt dolomite is an important strategic area for natural gas exploration in the Tarim Basin. The gypsum-salt rocks, argillaceous mudstone and argillaceous dolomite strata developed in large areas of the Middle Cambrian can be used as good caprocks. The sealing ability …

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Lower limits of physical properties and classification evaluation criteria of the tight reservoir in the Ahe Formation in the Dibei Area of the Kuqa depression

Caiyuan Dong, Wei Min Yang, Jun Li, Li Dejiang et autres

Abstract The Ahe Formation in the Dibei Area is a key natural gas exploration formation in the northern structural belt. Based on geological data such as formation tests and physical properties, the tight reservoirs were determined using the empirical statistics method, distribution …

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Geochemistry and mineralogy of the Upper Ordovician Wufeng formation, Southwestern China: Implications for Paleoclimate construction

Caiyuan Dong, Li Dejiang, Ye Zhang, Dahua Li et autres

Wufeng Formation shale is an important source rock of unconventional hydrocarbons in the Lower Paleozoic shales of Sichuan Basin. However, the study on its provenance and paleoclimate is still relatively limited. In this study, mineralogical and geochemical data of the shales from …

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Characteristics of orderly hydrocarbon accumulation of deep reservoirs in Kuqa Depression and its exploration implications

Jun Li, Xianzhang Yang, Caiyuan Dong, Jin Li et autres

The Kuqa depression is an important oil and gas production area in western China, and there are abundant natural gas resources in the deep and ultra‐deep tight reservoirs. In this study, the accumulation law of deep oil and gas in the Kuqa …

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Genesis of Cambrian Dolomites in the Bachu Area, Tarim Basin, NW China: Constraints from Petrology, Geochemistry, and Fluid Inclusions

Zhipeng Chen, Yanfei Yang, Caiyuan Dong, Ningxi Li et autres

The dolomitization of carbonate rocks has always been a hot topic in the study of the dolomite reservoir. In this study, the genesis of Cambrian dolomite in the Bachu area, Tarim Basin, was assessed through petrographic examinations, isotope compositions (C, O, and …

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Reservoir Characteristics of Tight Sandstone and Sweet Spot Prediction of Dibei Gas Field in Eastern Kuqa Depression, Northwest China

Guangjie Zhao, Xianqing Li, Mancang Liu, Caiyuan Dong et autres

Great progress has been made in the exploration of tight sandstone gas resources in Kuqa depression. Great progress has been made in Dibei structural belt, which proves the previously unproven favorable area for tight sandstone gas. The physical properties, controlling factors, and …

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Chemical characteristics of Middle Permian formation water and hydrocarbon preservation conditions in Northwest Sichuan

Chunlong Yang, Zengye Xie, Senqi Pei, Jianying Guo et autres

Abstract The analysis of the chemical characteristics of the Middle Permian formation water in 10 wells in the northwest of Sichuan Basin indicates that: the TDS of the Middle Permian formation water in Northwest Sichuan increases longitudinally with the burial depth of …

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Geochemical characteristics and genesis of the Middle Devonian and the Middle Permian natural gas in the Sichuan Basin, China

Zengye Xie, Chunlong Yang, Caiyuan Dong, Xin Dai et autres

Breakthroughs have been made for the natural gas exploration of the Middle Devonian and the Middle Permian formations in the Sichuan Basin in recent years. Nevertheless, its natural gas source is still not clear, which then affects the next exploration deployment decision. …

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Geochemical characteristics and accumulation model of Devonian natural gas in Northwestern Sichuan Basin, China

Zengye Xie, Chunlong Yang, L Zhang, Caiyuan Dong et autres

Abstract Gas exploration has made major breakthrough firstly in Devonian strata in northwest Sichuan Basin, and its natural gas source have attracted much attention. In this work we developed comprehensive researches on natural gas geochemistry, reservoir bitumen and related source rock biomarkers …

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