Petroleum accumulation in the deeply buried reservoirs in the northern Dongying Depression, Bohai Bay Basin, China: New insights from fluid inclusions, natural gas geochemistry, and 1-D basin modeling

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• 作者：Hongwei Ping^a ; ^b ; ^{howping@qq.com} ; Honghan Chen^a ; Guanghua Jia^c
• 关键词：Oil inclusion ; Fluorescence spectroscopy ; PVT thermodynamics modeling ; Carbon isotope ; Oil cracking ; Gas injection ; Gas condensate ; Overpressure
• 刊名：Marine and Petroleum Geology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：80
• 期：Complete
• 页码：70-93
• 全文大小：6252 K
• 卷排序：80

文摘

Natural gas derived from kerogen and crude oil has been recognized using carbon isotope data. The API gravities of oil inclusions and reservoir oil were used to analyze contributions to petroleum accumulations. Gas condensates generated from highly mature kerogen and from gas injection into pre-existing oil were identified. The pressure-volume-temperature-composition (PVTX) evolution of petroleum were reconstructed. Kerogen cracking gas and oil cracking gas accumulation models were developed.