Chunhui Cao
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View article: Optimizing Helium Exploration: Noble Gas Isotopes as Probes for Migration–Enrichment Processes
Optimizing Helium Exploration: Noble Gas Isotopes as Probes for Migration–Enrichment Processes Open
Helium, as a strategic resource with broad applications in industry and science, has drawn increasing global attention due to its scarcity and non-renewable nature. Noble gas isotopes, especially those of helium, neon, and argon, provide u…
View article: The Use of Noble Gases to Constrain Subsurface Fluid Dynamics in the Hydrocarbon Systems
The Use of Noble Gases to Constrain Subsurface Fluid Dynamics in the Hydrocarbon Systems Open
Geochemical techniques have been widely applied to study the generation and migration of hydrocarbons in sedimentary basins over the last several decades. Diagnostic biomarkers and stable carbon and hydrogen isotopes (such as δ 13 C and D)…
View article: First Estimates of Hydrothermal Helium Fluxes in Continental Collision Settings: Insights From the Southeast Tibetan Plateau Margin
First Estimates of Hydrothermal Helium Fluxes in Continental Collision Settings: Insights From the Southeast Tibetan Plateau Margin Open
Continental regions are essential for the outgassing of deeply‐sourced helium in response to volcanic and tectonic processes. However, the helium fluxes remain largely unknown for continental collision settings such as the Tibetan Plateau.…
View article: Regional fault-controlled shallow dolomitization of the Middle Cambrian Cathedral Formation by hydrothermal fluids fluxed through a basal clastic aquifer
Regional fault-controlled shallow dolomitization of the Middle Cambrian Cathedral Formation by hydrothermal fluids fluxed through a basal clastic aquifer Open
This study evaluates examples of hydrothermal dolomitization in the Middle Cambrian Cathedral Formation of the Western Canadian Sedimentary Basin. Kilometer-scale dolomite bodies within the Cathedral Formation carbonate platform are compos…
View article: Factors Affecting Shale Gas Chemistry and Stable Isotope and Noble Gas Isotope Composition and Distribution: A Case Study of Lower Silurian Longmaxi Shale Gas, Sichuan Basin
Factors Affecting Shale Gas Chemistry and Stable Isotope and Noble Gas Isotope Composition and Distribution: A Case Study of Lower Silurian Longmaxi Shale Gas, Sichuan Basin Open
The Weiyuan (WY) and Changning (CN) fields are the largest shale gas fields in the Sichuan Basin. Though the shale gases in both fields are sourced from the Longmaxi Formation, this study found notable differences between them in molecular…
View article: Method for Analyzing the Molecular and Carbon Isotope Composition of Volatile Hydrocarbons (C<sub>1</sub>–C<sub>9</sub>) in Natural Gas
Method for Analyzing the Molecular and Carbon Isotope Composition of Volatile Hydrocarbons (C<sub>1</sub>–C<sub>9</sub>) in Natural Gas Open
Solid-phase microextraction (SPME) coupled with gas chromatography-isotope ratio mass spectrometry (GC-IRMS) has already been applied to collect and identify volatile light hydrocarbons in oil and source rocks. However, this technology has…
View article: Gas geochemistry characteristic of shale gas in Longmaxi Formation, SE Sichuan Basin, China
Gas geochemistry characteristic of shale gas in Longmaxi Formation, SE Sichuan Basin, China Open
Shale gas samples collected from Lower Silurian Longmaxi Formation of Southern Sichuan Basin in Weiyuan were analysed for stable isotope composition of noble gases and molecular composition, stable carbon isotope composition of hydrocarbon…
View article: Development of a new method for hydrogen isotope analysis of trace hydrocarbons in natural gas samples
Development of a new method for hydrogen isotope analysis of trace hydrocarbons in natural gas samples Open
A new method had been developed for the analysis of hydrogen isotopic composition of trace hydrocarbons in natural gas samples by using solid phase microextraction (SPME) combined with gas chromatography-isotope ratio mass spectrometry (GC…
View article: Geochemical characteristics and implications of shale gas from the Longmaxi Formation, Sichuan Basin, China
Geochemical characteristics and implications of shale gas from the Longmaxi Formation, Sichuan Basin, China Open
Gas geochemical analysis was conducted on the shale gas from the Longmaxi Formation in the Weiyuan-Changning areas, Sichuan Basin, China. Chemical composition was measured using an integrated method of gas chromatography combined with mass…