西南石油大学学报(自然科学版) ›› 2005, Vol. 27 ›› Issue (5): 1-4,13.DOI: 10.3863/j.issn.1000-2634.2005.05.01

• 地质勘探 •     Next Articles

DISCUSSION ON THE FAULT SEALING AND CHARACTERISTICS OF O IL HYDROCARBON ON THE WEST SLOPE OF Q INAN SAG, HUANGHUA DEPRESSION

ZHANG Jie1 QIU Nan-sheng1 WEIA-juan2 et al
  

  1. Basin& ReservoirResearch Center, University ofPetroleum, Beijing 102249,China
  • Received:2004-10-08 Revised:1900-01-01 Online:2005-10-20 Published:2005-10-20
  • Contact: ZHANG Jie

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Abstract:

Fault sealing is divided into lateral sealing and vertical sealing. Based on this point, this paperdiscusses the fault sealing on thewestslope of Qinan bymeans ofdetermining the shale content of fault fillingmaterials and analyzing the shale smearon fault surface. In order to know the fault sealing in geology history, the course of themain faults (F2, F3, F6, F7, F8) evolution history is revealed. The characters of fault sealing on west slope ofQinan sag are as follows: (1) The second tectonic activity has limited effect on lateral sealing of faults. (2) The faults prevent oilmigrating in Es3 in west slope ofQinan sag.(3) Hydrocarbon migrates from the center ofQinan sag to the west slope through sands.

Key words: fault sealing, ateral sealing, vertical sealing, Huanghua epression, hydrocarbon migration.

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