Evaluation of the Scaling Resistance of Different Coating and Material for Thermal Operations
- Vahidoddin Fattahpour (RGL Reservoir Management Inc.) | Mahdi Mahmoudi (RGL Reservoir Management Inc.) | Morteza Roostaei (RGL Reservoir Management Inc.) | Stephen Cheung (Calgary Rock and Materials Services Inc.) | Lu Gong (University of Alberta) | Xiaoyong Qiu (University of Alberta) | Jun Huang (University of Alberta) | Arian Velayati (University of Alberta) | Mohammad Kyanpour (RGL Reservoir Management Inc.) | Ahmad Alkouh (College of Technical Studies) | Raymond Strom (Calgary Rock and Materials Services Inc.) | Brent Fermaniuk (RGL Reservoir Management Inc.) | Hongbo Zeng (University of Alberta) | Jing-Li Luo (University of Alberta)
- Document ID
- Society of Petroleum Engineers
- SPE International Heavy Oil Conference and Exhibition, 10-12 December, Kuwait City, Kuwait
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 5.2 Reservoir Fluid Dynamics, 4.2 Pipelines, Flowlines and Risers, 1.8 Formation Damage, 4.3.4 Scale, 4.2.3 Materials and Corrosion, 1.8 Formation Damage, 5.2 Reservoir Fluid Dynamics
- AFM/SEM/EDX, Electroless nickel coating, Thermal production, Silica Scaling, Sand control screen
- 3 in the last 30 days
- 69 since 2007
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Several alloys and coating techniques have been used by industry for their anti-corrosion and anti-fouling properties in the industry. One of the major problems in thermal operation is related to silica and calcium carbonate scale. In this study, we intend to better understanding the relative scaling resistance performance of different coatings and alloys exposed to typical formation water in thermal operations. This paper provides a study on failed samples collected from various projects in Western Canada. Moreover, a review of research work on scaling properties of different materials in thermal applications will be presented.
Different failed screens were collected from various projects in Western Canada. Thin section analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM) joined with energy dispersive X-ray spectroscopy (EDX) were performed on collected failed pipeline samples to determine the composition of the scale material. Obtained results revealed that the main scaling materials are silicates and carbonates. Chert, clays and carbonates act as cement to bind sand grains (mainly quartz).
Later, a review was performed on an ongoing investigation regarding the materials and coatings for improving the anti-scaling properties. Bulk scaling tests, Atomic Force Microscopy (AFM), and in-situ field trials were used to investigate the anti-scaling properties of two RGL proprietary grade materials, proRC05, and proRS06, as well as electroless nickel (EN) coating. Carbon steel L80, carbon steel 4140 and EN30B alloy steel were used for comparison. The microstructural change of the material surface was studied using complementary techniques (e.g., XRD, SEM, and EDX). The tests have been performed under a complex chemical environment that represents the chemistry of the near screen condition in thermal operation, to assess the relative performance of different coatings. Among proRC05, proRS06, 4140 carbon steel and EN30B alloy steel, the anti-scaling performance follows the order of proRC05 > proRS06 > 4140 carbon steel > EN30B alloy steel. Comparison between EN-coated and uncoated samples shows that the EN-coated carbon steel L80 provides better anti-corrosion and fouling resistance performance with a small amount of iron oxides and silica foulants. Field trials of EN-coated technology have been also proven to be effective.
This work provides a detailed review on recent attempts on evaluating the anti-scaling properties of various materials and coatings to minimize the silica and calcium carbonate scale. Furthermore, field trials were reviewed for evaluating the scaling and corrosion properties in thermal production. The results of this study will help engineers select material for projects in which silica and calcium carbonate scaling could be a significant issue.
|File Size||2 MB||Number of Pages||17|
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