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Volume 27 Issue 6
Nov.  2016
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Hongyu Wang, Tailiang Fan, Xuesong Fan. Principles of Trap Development and Characteristics of Hydrocarbon Accumulation in a Simple Slope Area of a Lacustrine Basin Margin: An Example from the.... Journal of Earth Science, 2016, 18(6): 1027-1037. doi: 10.1007/s12583-016-0683-7
Citation: Hongyu Wang, Tailiang Fan, Xuesong Fan. Principles of Trap Development and Characteristics of Hydrocarbon Accumulation in a Simple Slope Area of a Lacustrine Basin Margin: An Example from the.... Journal of Earth Science, 2016, 18(6): 1027-1037. doi: 10.1007/s12583-016-0683-7

Principles of Trap Development and Characteristics of Hydrocarbon Accumulation in a Simple Slope Area of a Lacustrine Basin Margin: An Example from the...

doi: 10.1007/s12583-016-0683-7
  • Received Date: 2016-12-26
  • Rev Recd Date: 2016-12-26
  • Publish Date: 2016-12-26
  • The western slope of the Songliao Basin is a gently dipping monoclinal slope featured by stratum overlap, gradual change of stratum inclination and limited fault development, which formed during basin depression interrupted by a tectonic inversion stage. Structure, sedimentation and reservoir characteristics show that the development of the slope and its sand bodies’ depositional genesis determined the types, distribution and evolution of traps. Up-dip wedge-out traps in distributary channels, lenticular traps in distal sand bars and sand sheets in the delta front are the main lithologic trap types and usually have thin reservoir beds, small areas, and are distributed in clusters and belts. The episode of tectonic inversion led to the formation of structural traps and combination traps. The combination traps are characterized by large numbers of thin oil-bearing beds occurring along fold belts. Matching axial directions of distributary channel sand bodies in delta fronts with channel morphology during the period between deposition of sand bodies and sealing by an unconformity above is the key to the search for large scale traps in a simple slope area.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Principles of Trap Development and Characteristics of Hydrocarbon Accumulation in a Simple Slope Area of a Lacustrine Basin Margin: An Example from the...

doi: 10.1007/s12583-016-0683-7

Abstract: The western slope of the Songliao Basin is a gently dipping monoclinal slope featured by stratum overlap, gradual change of stratum inclination and limited fault development, which formed during basin depression interrupted by a tectonic inversion stage. Structure, sedimentation and reservoir characteristics show that the development of the slope and its sand bodies’ depositional genesis determined the types, distribution and evolution of traps. Up-dip wedge-out traps in distributary channels, lenticular traps in distal sand bars and sand sheets in the delta front are the main lithologic trap types and usually have thin reservoir beds, small areas, and are distributed in clusters and belts. The episode of tectonic inversion led to the formation of structural traps and combination traps. The combination traps are characterized by large numbers of thin oil-bearing beds occurring along fold belts. Matching axial directions of distributary channel sand bodies in delta fronts with channel morphology during the period between deposition of sand bodies and sealing by an unconformity above is the key to the search for large scale traps in a simple slope area.

Hongyu Wang, Tailiang Fan, Xuesong Fan. Principles of Trap Development and Characteristics of Hydrocarbon Accumulation in a Simple Slope Area of a Lacustrine Basin Margin: An Example from the.... Journal of Earth Science, 2016, 18(6): 1027-1037. doi: 10.1007/s12583-016-0683-7
Citation: Hongyu Wang, Tailiang Fan, Xuesong Fan. Principles of Trap Development and Characteristics of Hydrocarbon Accumulation in a Simple Slope Area of a Lacustrine Basin Margin: An Example from the.... Journal of Earth Science, 2016, 18(6): 1027-1037. doi: 10.1007/s12583-016-0683-7

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