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Study on Hydrocarbons Accumulation Dynamics and Petroliferous Quality of Lithologic Reservoirs in Linnan Subsag(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第03期
Page:
272-276
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Study on Hydrocarbons Accumulation Dynamics and Petroliferous Quality of Lithologic Reservoirs in Linnan Subsag
Author(s):
DUAN Yun-ge CHANG Xiang-chun
(School of Geological Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, Shandong, China)
Keywords:
linnan subsag lithological reservoirs equivalent charging pressure shoulder-bed surplus pressure reservoir forming index oil filling degree
PACS:
P618.13;TE122.3
DOI:
-
Abstract:
In order to determine the hydrocarbon accumulation dynamics and evaluate the oil-bearing properties, the equivalent charging pressure, shoulder-bed surplus pressure and reservoir index of each kind of lithological reservoirs in this area have been quantitatively evaluated based on the well logging and the analyzing of typical reservoirs. It is indicated that lenticular reservoirs have the highest filling degree due to the “surrounded within the mature source rocks” model and the excellent source-reservoir-sealing assemblage, the relatively largest pool-forming dynamics and the best reservoir forming conditions. Upclined pinch-out reservoirs have a high filling degree, in that it is provided with the excellent combination between source and reservoir rocks and carrier system, and the high forming dynamics. The unstable physical properties of structure-lithological reservoirs result in variable forming-dynamics and petroliferous quality, and make a low filling degree.

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Last Update: 2009-09-20