东营凹陷古近系岩性地层油气藏层序地层学特征

doi:10.11743/ogg20100204

Abstract

Abstract:

In this paper,sequence stratigraphic theories are used to analyze the hydrocarbon pooling factors and distribution pattern of the Paleocene lithologic and stratigraphic reservoirs in the Dongying Depression.According to the study,the sequence stratigraphy has a major control on the hydrocarbon pooling factors of the lithologic and stratigraphic reservoirs,such as hydrocarbon generation,preservation,sealing,migration and accumulation.Lithologic and stratigraphic reservoirs are mainly distributed below slope break,near unconformity surface or near flooding surface.System tracts and sedimentary base level cycle control the types of reservoirs: stratigraphic re-servoirs mainly occur in the lake transgression system tract,while lithologic reservoirs are mainly found in low system tract and high system tract.The pool-forming efficiencies are different for sandbodies on different orders of sequence boundaries.

Key words: sedimentary base level, system tract, pool-forming factor, lithologic and stratigraphic reservoir, sequence stratigraphy

WANG Hua-Ai-. Sequence stratigraphic characteristics of the Paleocene lithologic and stratigraphic reservoirs in the Dongying Depression[J]. Oil & Gas Geology, 2010, 31(2): 158-164.

References

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Sequence stratigraphic characteristics of the Paleocene lithologic and stratigraphic reservoirs in the Dongying Depression

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