Sealing of Aogula Faulted Zone and Its Control on Oil and Gas Migrationand Accumulation of the West Slope of Songliao Basin

ZHOU Qing-hua,; Lv Yan-fang  ;WANG Song ;GAO Xiao-hui ; WANG Peng-Yan ; FU Guang

doi:10.11764/j.issn.1672-1926.2008.02.210

2008 , Vol. 19 >Issue 2: 210 - 215

DOI: https://doi.org/10.11764/j.issn.1672-1926.2008.02.210

Sealing of Aogula Faulted Zone and Its Control on Oil and Gas Migrationand Accumulation of the West Slope of Songliao Basin

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(1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;  2.Geological Logging Subcompany, Daqing Oil Field Company Ltd., Daqing 163411, China;  3. School of Earth Science, Daqing Petroleum Institute, Daqing 163318, China; 4. Logging and Testing Services Subcompany, Daqing Oilfield Company Ltd., Daqing 163153, China)

Received date: 2007-10-31

Revised date: 2008-02-28

Online published: 2008-04-10

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Abstract

Aogula fault zone locates in the north of the Songliao basin. It includes Xiaolinke fault, Aogula fault and Talahai fault from north to south. Through the analysis of five seismic section data, this paper studies the fault lateral sealing using the docking probability method and the fault vertical sealing using the sectional pressure method. The development characteristics of the fault zone and the fault sealing indicate that its main formations of K₂qn, K₂y, K₂n₁and K₂n2 have good lateral sealing and its vertical sealing is average to good. Oil source correlation shows that the oil and gas comes from the Qijia Gulong sag. The Aogula fault zone may hinder the oil and gas migration, and it can also divide and accumulate the oil and gas migrating to the west slope. This makes oil and gas distribute in strings to the west of the Aogula fault zone.

Key words： Songliao basin; Aogula fault zone; Fault seal; Path; Oil and gas; Migration and accumulation.

Cite this article

ZHOU Qing-hua,; Lv Yan-fang ;WANG Song ;GAO Xiao-hui ; WANG Peng-Yan ; FU Guang . Sealing of Aogula Faulted Zone and Its Control on Oil and Gas Migrationand Accumulation of the West Slope of Songliao Basin[J]. Natural Gas Geoscience, 2008 , 19(2) : 210 -215 . DOI: 10.11764/j.issn.1672-1926.2008.02.210

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