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Mileage and geospatial coordinates fitting method for pipeline body data

A geospatial and mileage technology, applied in electrical digital data processing, special data processing applications, structured data retrieval, etc., can solve problems such as the inability to accurately calibrate the direction of the pipeline and the location of defects

Active Publication Date: 2016-02-24
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a method for fitting the mileage and geographic space coordinates of the pipeline body data to solve the technical problems in the prior art that the direction of the pipeline cannot be accurately calibrated and the location of defects

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  • Mileage and geospatial coordinates fitting method for pipeline body data
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  • Mileage and geospatial coordinates fitting method for pipeline body data

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Embodiment Construction

[0033] The invention provides a method for fitting the mileage and geographic space coordinates of pipeline body data to solve the technical problems in the prior art that the direction of the pipeline cannot be accurately calibrated and the location of defects.

[0034] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0035] Establishing the alignment database of the pipeline specifically includes: modeling the data objects with geospatial coordinates or mileage and establishing the association relationship between each data object; after the alignment database is established, the detection results and Aligned data objects are respectively added to the alignment database; hard point selection and hard point alignment are performed on the data objects contained in the alignment database, wherein the data objects in the alignment database include two types, the first data...

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Abstract

The present invention relates to the field of inner detection on oil gas pipelines, and discloses a mileage and geospatial coordinates fitting method for pipeline body data so as to solve the technical problem that pipeline direction can not be accurately calibrated and defects can not be accurately positioned in the prior art. The method comprises: establishing an alignment database of a pipeline; after establishing the alignment database, separately adding a detection result with an inner detection mileage and an aligned data object into the alignment database; performing hard spot alignment on data objects contained in the alignment database; performing data segmentation and tension calibration; and after the hard spot alignment, implementing defect alignment of weld joints of the pipeline. The technical effect of not only accurately calibrating the pipeline direction, but also accurately positioning the defect can be achieved.

Description

technical field [0001] The invention relates to the field of detection in oil and gas pipelines, in particular to a method for fitting pipeline body data mileage and geographic space coordinates. Background technique [0002] In-pipeline detection technology refers to moving the internal detection detector (deformation, magnetic flux leakage, ultrasonic, etc.) Pipeline body information such as valves, and technologies including various types of defect points such as metal loss, cracks, and depressions, and defect characteristics such as length, depth, and width. [0003] Geospatial coordinates refer to the 3-dimensional coordinates (X, Y, Z) / (B, L, Z) based on the national surveying and mapping datum (Xi'an 80 coordinate system, WGS84 coordinate system). [0004] PIDM (Petrochina IntegrityDataModel: China Petroleum Complete Data Model), ArcGIS pipeline data model, used to collect, store and manage element information related to pipelines (especially gas and liquid systems),...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 周利剑李振宇冼国栋张兴龙余东亮刘洋张新建任武刘亮吴志强徐杰
Owner PIPECHINA SOUTH CHINA CO