Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

98670 THE USE OF DIFFERENTIAL GPS AS AN INSPECTION TOOL IN THE EXTERNAL CORROSION CONTROL OF BURIED PIPELINES

Picture for 98670 THE USE OF DIFFERENTIAL GPS AS AN
Available for download
Product Number: 51300-98670-SG
ISBN: 98670 1998 CP
Author: Angel R. Kowalski
Industry: Oil and Gas Production
$0.00
$20.00
$20.00
A maintenance program was designed to improve the cathoclc protection level of two oil gathering pipeiines of an oil production facility in Eastern Venezuela. The program was built upon the information obtained from a coating condition evaluation and the soil resistivity proiile along the pipeline corridors. The external coating was inspected with the Direct Current Voltage Gradient technique, DCVG; the soil resistivity of the pipeline corridor was measured every 100 meters (328 ft.). All the geographical information was obtained with Differential Global Positioning System (DGPS). This allowed the pipeline operator to relocate all coating defects with a sub metric accuracy that considerably reduced the rehabilitation costs. The coating inspection covered a total distance of twelve thousand, nine hundred and thirty-six meters (12,936 meters). Two hundred and ninety two (292) defects were found; 54 defects belonged to Category 3 and will need immediate repair. The soil corrosiveness along the pipeline corridors was established by the resistivity gradient. Critical areas were established and exploratory digs were recommended to asses exposed metal condition. Keywords Direct Current Voltage Gradient technique, cathodic protection, soil resistivity, %IR, Differential GPS.
A maintenance program was designed to improve the cathoclc protection level of two oil gathering pipeiines of an oil production facility in Eastern Venezuela. The program was built upon the information obtained from a coating condition evaluation and the soil resistivity proiile along the pipeline corridors. The external coating was inspected with the Direct Current Voltage Gradient technique, DCVG; the soil resistivity of the pipeline corridor was measured every 100 meters (328 ft.). All the geographical information was obtained with Differential Global Positioning System (DGPS). This allowed the pipeline operator to relocate all coating defects with a sub metric accuracy that considerably reduced the rehabilitation costs. The coating inspection covered a total distance of twelve thousand, nine hundred and thirty-six meters (12,936 meters). Two hundred and ninety two (292) defects were found; 54 defects belonged to Category 3 and will need immediate repair. The soil corrosiveness along the pipeline corridors was established by the resistivity gradient. Critical areas were established and exploratory digs were recommended to asses exposed metal condition. Keywords Direct Current Voltage Gradient technique, cathodic protection, soil resistivity, %IR, Differential GPS.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 98671 INTEGRAL EVALUATION OF THE EXTERNAL
Available for download

98671 INTEGRAL EVALUATION OF THE EXTERNAL CORROSION CONTROL SYSTEM FOR BURIED PIPELINES

Product Number: 51300-98671-SG
ISBN: 98671 1998 CP
Author: Angel R. KowaIski
$20.00
Picture for 11181 Methodology for Surveying Buried Plant Piping for Coating Condition and CP Effectiveness
Available for download

11181 Methodology for Surveying Buried Plant Piping for Coating Condition and CP Effectiveness

Product Number: 51300-11181-SG
ISBN: 11181 2011 CP
Author: Andy Smart, Steve Biagiotti, Andy Jensen and Eric Elder
Publication Date: 2011
$20.00
Picture for 10069 Finding & Determining Cause of External Corrosion on Coated & Cathodically Protected Pipelines
Available for download

10069 Finding and Determining the Cause of External Corrosion on Coated and Cathodically Protected Pipelines

Product Number: 51300-10069-SG
ISBN: 10069 2010 CP
Author: Richard Norsworthy
Publication Date: 2010
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support