초록 ▼

A pipeline monitoring system for determining profile, ovality and displacement of oil, gas and products pipelines. The system comprises one or more pig carriers housing a plurality of sensors including a strapdown inertial measurement system, a secondary sonar measurement system, digital recorder, w

A pipeline monitoring system for determining profile, ovality and displacement of oil, gas and products pipelines. The system comprises one or more pig carriers housing a plurality of sensors including a strapdown inertial measurement system, a secondary sonar measurement system, digital recorder, weld detector and odometer. The inertial measurement system detects primary acceleration and orientation data of the monitoring system within a pipeline and the secondary system generates redundant data for verifying the acceleration orientation information provided by the inertial system. The digital recorder records all of the information generated by the various measurement systems and sensors for post ash processing analysis to determine the aforementioned features of profile, ovality and displacement of pipelines.

대표청구항 ▼

A pipeline monitoring system, comprising: (a) carrier means adapted for travelling through a pipeline; (b) a strapdown inertial system mounted within said carrier means for measuring dynamic characteristics of said carrier means within said pipeline relative to an inertial frame of reference, and in

A pipeline monitoring system, comprising: (a) carrier means adapted for travelling through a pipeline; (b) a strapdown inertial system mounted within said carrier means for measuring dynamic characteristics of said carrier means within said pipeline relative to an inertial frame of reference, and in response generating first predetermined digital signals representative of said characteristics; (c) secondary sensor means different from the inertial system mounted within said carrier means for redundant measuring of one or more of said dynamic characteristics relative to said pipeline, and in response generating further predetermined digital signals representative thereof; and (d) recorder means mounted within said carrier means for receiving and recording said first and further predetermined digital signals for subsequent retrieval, whereby upon retrieval said first and further predetermined digital signals yield a nonunique solution of profile and structural characteristics of said pipeline.