Method and device for identifying lithologic character of altered volcanic rock

A lithology identification and volcanic rock technology, applied in seismic signal processing, seismology for logging records, etc., can solve the problems of inaccuracy and complex identification of altered volcanic rocks

Active Publication Date: 2011-05-11
PETROCHINA CO LTD
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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for identifying altered volcanic rock lithology, whi

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  • Method and device for identifying lithologic character of altered volcanic rock
  • Method and device for identifying lithologic character of altered volcanic rock
  • Method and device for identifying lithologic character of altered volcanic rock

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Such as figure 1 Shown is a flow chart of an altered volcanic rock lithology identification method according to an embodiment of the present invention.

[0033] Step 101, establish the association between volcanic rock lithology and corresponding drilling and logging data.

[0034] Among them, the drilling data in the drilling and logging data comes from some recorded data generated during the drilling process, such as time, drill bit pressure, drill bit sp...

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Abstract

The invention relates to the field of geological exploration, particularly to a method and a device for identifying the lithologic character of altered volcanic rock. The method comprises the following steps: the relation between the lithologic character of volcanic rock and the corresponding drilling-logging data is established; lithologic character parameters are extracted from the drilling-logging data relating to the lithologic character of the volcanic rock; the extracted lithologic character parameters undergo information fusion, so as to obtain the feature model for drilling and logging the lithologic character of the volcanic rock; the measuring parameters of the volcanic rock to be measured before the drilling-logging are obtained; the measuring parameters of the volcanic rock to be measured are combined to a group identical with the character parameters in the information fusion, so as to be matched with the feature model; and if the matching is successful, the lithologic character of the volcanic rock corresponding to the volcanic rock to be measured is output. The embodiment of the invention can be used for visually, correctly, quickly and effectively identifying the lithologic character of the volcanic rock, and especially the knowledge on the altered volcanic rock is remarkably improved.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to a method and device for identifying altered volcanic rock lithology. Background technique [0002] Volcanic rock research has a history of more than 100 years. The basis of lithology identification is the lithology classification of volcanic rocks. Mineral content, chemical composition, origin, structure, and structure are the basis for the classification and naming of igneous rocks. Due to the different points of view of each classification and the diversity of volcanic rocks, there are more than 1,000 names of volcanic rocks. Although this reflects the complex and diverse facts of volcanic rocks, it also shows the confusion caused by human factors in the classification and naming. The identification of rock thin sections based on the polarizing microscope and the optical characteristics of minerals is the basis for determining the classification and lithology of volcanic ...

Claims

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Application Information

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IPC IPC(8): G01V1/28G01V1/40
Inventor 陈福利冉启全刘运成孙圆辉徐青阮宝涛李冬梅王拥军袁大伟李忠诚刘宇
Owner PETROCHINA CO LTD
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