Dating method based on logging Milankovitch cycle analysis method
A technology of Mie cycle and analysis method, applied in the field of petroleum geological exploration, can solve the problems of spectrum analysis results and filtering results errors, sediment dating errors and other problems
Active Publication Date: 2014-10-08
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology
[0004] However, for the traditional Mie cycle dating technique, if there are sediments formed by sudden events in the sediments, it will cause large errors in the spectrum analysis results and filtering results
This led to certain errors in the dating of sediments (including event sediments)
Method used
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Embodiment Construction
[0049] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings. Embodiment 1 of the present invention provides the basic flow of the dating method based on the logging Mie cycle analysis method, such as figure 2 shown, including the following steps:
[0050] S201, obtaining sedimentation record data and corresponding depth values of sediments at different depths in the target interval;
[0051] S202. Obtain core samples and depth values of sediments at different depths in the target interval, and analyze the core samples to determine the depth of the incident sediments;
[0052] S203, removing the sedimentary record data at the depth of the incident sediment from the sedimentary record data, so as to obtain the data to be analyzed by spectrum and the depth value;
[0053] S204, matching the data to be analyzed and the depth value with the pre-acquired astronomical period, so...
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The invention relates to the field of petroleum geological exploration, and particularly relates to a dating method based on a logging Milankovitch cycle analysis method. According to the dating method based on a logging Milankovitch cycle analysis method, based on a conventional dating method of a Milankovitch cycle analysis method, by judging whether sediments in different depths in an interval of interest is eventfully deposited or not, further, corresponding data and corresponding depth values containing eventful deposition are eliminated from deposition recording data and corresponding depth values of sediments in different depths, wherein the sediments are obtained by using the conventional Milankovitch cycle analysis method, and ages of the sediment in the appointed depth is calculated by using the data and the depth value obtained after the corresponding data and corresponding depth values containing eventful deposition are eliminated. Therefore, the influence on dating of the sediments due to eventful deposition is prevented so that the dated age of the sediment is accurate.
Description
technical field [0001] The invention relates to the field of petroleum geological exploration, in particular to a dating method based on a logging Mie cycle analysis method. Background technique [0002] With the advancement of geological research to the quantitative direction, there is an urgent need to determine the age of sediments. The determination of sediment ages is of great significance for establishing the isochronous stratigraphic framework of basins and for oil and gas exploration. The determination of sediment age mainly includes isotope dating, zircon dating and traditional Milankovitch dating (traditional Mie cycle dating technique). [0003] The isotope dating method and zircon dating method used in the precise dating of ancient sediments are expensive in testing and have strict requirements on sample quality, that is, both methods are limited by samples and costs. Cannot be effectively used on a large scale. Another traditional Milankovitch cycle method for...
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IPC IPC(8): G01N23/00G01N15/02
Inventor 张元福姜在兴张海波王志峰高维维
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)