A cable logging geological interface identification method and system based on multi-parameter cooperation

CN122447068APending Publication Date: 2026-07-24CHINESE ACAD OF GEOLOGICAL SCI
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Patent Information

Application Number
CN202610578920.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the process of geological exploration and well logging interpretation in plateau areas, traditional single-parameter well logging methods are difficult to accurately identify permafrost interfaces, are easily affected by geological differences and salinization, leading to misjudgment, and the acquisition of well logging response characteristics is unreliable, which cannot meet the engineering requirements of high-precision geological interface identification.

Method used

A multi-parameter collaborative cable logging method is adopted. By collecting resistivity data, sonic transit time data, compensated neutron data and geothermal data, a geological interface identification parameter system is constructed after preprocessing. Combined with preset threshold rules, collaborative judgment is performed to confirm the bottom boundary depth and response characteristics of the geological interface.

Benefits of technology

It has achieved multi-parameter collaborative and precise identification of geological interfaces in plateau areas, improved the accuracy and reliability of bottom boundary depth positioning of geological interfaces, generated reliable geological reference reports, and provided data support for plateau engineering construction.

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Abstract

The application discloses a kind of cable logging geological interface identification method and system based on multi-parameter cooperation, it is related to plateau permafrost logging identification technical field, the method includes: the multidimensional logging data of target stratum area is collected;Pretreatment is carried out, and standardized logging data set is obtained;Geological interface identification parameter system is constructed;Resistance difference parameter, acoustic travel time difference parameter and compensation neutron difference parameter are determined cooperatively, and the depth of bottom boundary of geological interface and corresponding logging response characteristics are output;Geological reference report is generated.The application solves the technical problems that existing technology is easy to be affected by geological difference and salinization when carrying out geological interface identification in plateau area, leading to misjudgment of identification, inaccurate positioning of the depth of bottom boundary of geological interface, and unreliable acquisition of logging response characteristics in plateau area, achieves multi-parameter cooperative accurate identification of geological interface in plateau area, and improves the accuracy and reliability of the depth of bottom boundary of geological interface positioning in plateau area.
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