Structural-sedimentary evolution char acter istics of Paleogene in Liaohe Depr ession

LI Chuan-liang

doi:10.3969/j.issn.1673-8926.2008.02.010

Lithologic Reservoirs >

2008 , Vol. 20 >Issue 2: 60 - 65

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.02.010

Structural-sedimentary evolution char acter istics of Paleogene in Liaohe Depr ession

LI Chuan-liang

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Liaohe Oilfield Company, PetroChina, Panjin 124010, China

Online published: 2008-06-15

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Abstract

Liaohe Depression is a Cenozoic oil-bearing depression which overlaps Mesozoic basin. The rift characteristics are very obvious at the early stage of Paleogene, but in the later period, the depression characteristics are marked. The evolution of Liaohe Depression could be divided into three periods, including Sha 4 and Sha 3 rift period, Sha 1+2 rift-depression period and Dongying depression period. Fan delta and sublacustrine fan facies developed during rift period of Sha 4 and Sha3; fan delta facies and alluvial facies chiefly developed during rift-depression period of Sha 1+2; delta facies and flood plain facies mainly developed during the depression period of Dongying stage.

Key words： rock; petroleummigration; primary migration; secondary migration; capillary pressure

Cite this article

LI Chuan-liang . Structural-sedimentary evolution char acter istics of Paleogene in Liaohe Depr ession[J]. Lithologic Reservoirs, 2008 , 20(2) : 60 -65 . DOI: 10.3969/j.issn.1673-8926.2008.02.010

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