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Electrode Tool Logging Approaches for Casing Inner Coating Monitoring

Picture for Electrode Tool Logging Approaches for Casing Inner Coating Monitoring
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To control the casing's severe CO2 inner corrosion and minimize damage to oil wells drilled into the Yan'an formation of Jurassic reservoirs; internal plastic coating was applied to the portion of the casing below the dynamic liquid level (nearly 700 m) for each of the more than 4000 wells drilled over the last 10 years. Considering the cost factor, it was not economic for the whole wellbore to have internal coating, so only the section with serious internal corrosion was internally coated with a modified epoxy-phenolic. 

This kind of modified epoxy-phenolic coating has excellent mechanical and anti-corrosion performance. But it’s difficult to analyze the long term aging or local mechanical damage of downhole inner coating. New approaches by electrode logging tools have been studied for monitoring the inner coating.

Product Number: 51320-14795-SG
Author: Gang Guo, Qiongwei Li, Bihai Cheng, Wenwei Lu,Lihua Yang, Zhiping Zhou
Publication Date: 2020
Industries: Oil and Gas , Coatings
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05163 Predictive Internal Corrosion Monitoring on a Crude Oil Pipeline: A Case Study

Product Number: 51300-05163-SG
ISBN: 05163 2005 CP
Author: Thomas W. Pickthall, Enhance Co.; Alan Carlysle, Dynamic Monitoring Systems; Tommy Duncan, Jayhawk P
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03202 The use of Dedicated Simulation Software for the Design and Understanding of the Cathodic Protection of Underground Pipeline Networks under various Interference Conditions

Product Number: 51300-03202-SG
ISBN: 03202 2003 CP
Author: Leslie Bortels
Publication Date: 2006
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A simulation software for the cathodic protection (CP) of underground pipeline networks is presented.  In this paper, the software will be applied to two different cases. The first concerns the design of the cathodic protection of a 55 km pipeline section. The second is the evaluation of an existing pipeline network in the north-west of The Netherlands.
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02263 Impressed Current and Galvanic Discrete Anode Cathodic Protection for Corrosion Protection of Concrete Structures

Product Number: 51300-02263-SG
ISBN: 02263 2002 CP
Author: David W. Whitmore, P. Eng.
Publication Date: 2002
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Chloride induced corrosion is recognized as a significant disease in the nation's concrete infrastructure. This paper will provide an overview of the various corrosion mitigation techniques available and then focus on two innovative methods of using discrete anodes embedded within the concrete to provide corrosion protection to existing structures.
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