Study on High-wax Oil Accumulation Mechanism in Dam intun Depression

SHI Jian-nan; HAO Fang JIANG; Jian-qun

Petroleum generation, evolution, migration and reservoir forming conditions and its controlling factors of Damintun Depression were discussed. Based on the basin evolution histories and conduit framework and potential source-rock, not only studied the evolution of the energy fields, but also the kinetic and dynamic processes, by integrated geological, geophysical and geochemical means and computer modeling advanced techniques. Detailed oil-source correlation showed that high2wax oil originates from " oil shale" of E₂ s²₄, and its reasons of generation are mainly due to organic matter and sedimentary environment. The well coup ling relationship of particular conformation-sediment development history and app rop riate geothermal-pressure circumstance is very avail of high-wax oil accumulation. Petroleum migration paths are mainly near-source charging and its charging history is about 37～33Ma. High-wax oil accumulation and distribution is as a result of fluid flow styles controlled by the energy field evolvement, valid source rocks and fluid conduit systems

Study on High-wax Oil Accumulation Mechanism in Dam intun Depression

Key Laboratory for Hydrocarbon Accumulation Mechanism,Ministry of Education, China University of Petroleurm,Beijing 102249

Received Date: 2004-07-06

Rev Recd Date: 2005-01-12

Publish Date: 2005-09-10

Key words:

Abstract: Petroleum generation, evolution, migration and reservoir forming conditions and its controlling factors of Damintun Depression were discussed. Based on the basin evolution histories and conduit framework and potential source-rock, not only studied the evolution of the energy fields, but also the kinetic and dynamic processes, by integrated geological, geophysical and geochemical means and computer modeling advanced techniques. Detailed oil-source correlation showed that high2wax oil originates from " oil shale" of E₂ s²₄, and its reasons of generation are mainly due to organic matter and sedimentary environment. The well coup ling relationship of particular conformation-sediment development history and app rop riate geothermal-pressure circumstance is very avail of high-wax oil accumulation. Petroleum migration paths are mainly near-source charging and its charging history is about 37～33Ma. High-wax oil accumulation and distribution is as a result of fluid flow styles controlled by the energy field evolvement, valid source rocks and fluid conduit systems

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Study on High-wax Oil Accumulation Mechanism in Dam intun Depression

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