Some Problems on Lithofacies Paleogeography in Oil and Gas Area

WANG Duo-yun; ZHENG Ximin; LI Feng-jie

In recently twenty years, sedimentary geologists working in oil and gas seemingly concern much the development of stratigraphy (seismic stratigraphy, sequence stratigraphy and high-resolution stratigraphy ), while pay little attention to creation of theory and research of method in the research of lithofacies paleogeographic environment. In fact, there are much abundant contents in research of palegeographic information and its source of driving force and driving mechanism in petrostratigraphic record. The new methods and techniques of extracting information and environment are continuously appearing, and the development of lithofacies paleogeography is still facing many important problems of theory and technique. In this paper, some problems are expounded in lithofacies paleogeography of oil and gas area, which include coupling relationship and their sensibility between the process of structure and distributary model of sedimentary lithofacies, time scale and resolution of reconstruction of lithofacies paleogeography, delicate description and depiction of lithofacies and environmental units, prediction of distribution of lithofacies units, source of information and its symmetry of reconstruction of lithofacies paleogeography, and mapping of digital lithofaies paleogeography.

Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000

Received Date: 2003-01-06

Rev Recd Date: 2003-01-10

Publish Date: 2003-03-10

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Abstract: In recently twenty years, sedimentary geologists working in oil and gas seemingly concern much the development of stratigraphy (seismic stratigraphy, sequence stratigraphy and high-resolution stratigraphy ), while pay little attention to creation of theory and research of method in the research of lithofacies paleogeographic environment. In fact, there are much abundant contents in research of palegeographic information and its source of driving force and driving mechanism in petrostratigraphic record. The new methods and techniques of extracting information and environment are continuously appearing, and the development of lithofacies paleogeography is still facing many important problems of theory and technique. In this paper, some problems are expounded in lithofacies paleogeography of oil and gas area, which include coupling relationship and their sensibility between the process of structure and distributary model of sedimentary lithofacies, time scale and resolution of reconstruction of lithofacies paleogeography, delicate description and depiction of lithofacies and environmental units, prediction of distribution of lithofacies units, source of information and its symmetry of reconstruction of lithofacies paleogeography, and mapping of digital lithofaies paleogeography.

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Some Problems on Lithofacies Paleogeography in Oil and Gas Area

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