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Quantitative classification and recognition plate construction method and system of deep-water gravity current sandstone reservoirs

A technology of classification, identification and construction methods, applied in measurement devices, geophysical measurements, detection/exploration of underground/near-surface gas, etc. problems such as homogeneity, to achieve accurate results and reliable methods

Inactive Publication Date: 2019-03-08
CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1
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Problems solved by technology

However, this classification method has a strong subjective will, and has failed to realize the quantitative identification and division of reservoir classification, and has not formed the standardization and normalization of the classification process. Qualitative and quantitative characterization, it is difficult to finely characterize the heterogeneity inside the gravity flow reservoir, and it is impossible to objectively analyze the production dynamics and predict the remaining oil

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  • Quantitative classification and recognition plate construction method and system of deep-water gravity current sandstone reservoirs
  • Quantitative classification and recognition plate construction method and system of deep-water gravity current sandstone reservoirs
  • Quantitative classification and recognition plate construction method and system of deep-water gravity current sandstone reservoirs

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.

[0018] The method for constructing a quantitative classification identification plate of a deep-water gravity flow sandstone reservoir provided by the present invention comprises the following steps:

[0019] 1) According to the lithology, sedimentary structure and bedding characteristics of the deep-water gravity-flow sandstone reservoirs in the coring wells, the deep-water gravity-flow sandstone reservoirs are preliminarily classified, and the lithofacies of the reservoirs with the same or similar characteristics are classified into the same category, Seven types of lithofacies of deep-water gravity flow sandstone reservoirs were obtained, including massive bedding sa...

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Abstract

The invention relates to a quantitative classification and recognition plate construction method and system of deep-water gravity current sandstone reservoirs. The quantitative classification and recognition plate construction method is characterized by comprising the following steps: classifying the deep-water gravity current sandstone reservoirs and constructing 9 types of rock phase combinations of the deep-water gravity current sandstone reservoirs; selecting deep-water gravity current sandstone reservoir samples to be subjected to quantitative recognition; acquiring logging curve characteristic values of each type of the rock phase combinations on the deep-water gravity current sandstone reservoir samples; constructing a quantitative classification and recognition plate of the deep-water gravity current sandstone reservoir samples according to the acquired logging curve characteristic values. The quantitative classification and recognition plate construction method and system canbe widely applied to the technical field of oil and gas field development geology.

Description

technical field [0001] The invention relates to a method and system for constructing a quantitative classification identification chart of a deep-water gravity flow sandstone reservoir, and belongs to the technical field of oil and gas field development geology. Background technique [0002] Deep water gravity flow deposition is currently a hot spot in the world's exploration and development. It refers to the terrigenous clastic sediments deposited in deep water, that is, the gravity flow sediments brought to the bottom of the basin by the slope break of the continental shelf, including sliding, slumping, liquefaction flow, Sedimentary processes such as debris flow and turbidity flow. At present, the research on deep-water gravity flow mainly focuses on the sedimentary mechanism, depositional model, and classification of internal macro-sedimentary bodies. There is little research on the classification of deep-water gravity-flow sandstone reservoirs based on lithofacies. [...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01V9/00
CPCG01N33/24G01V9/007
Inventor 卜范青葛尊增张迎春张旭段瑞凯陈国宁陈筱王昊周改英宋来明
Owner CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD
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