Ceramic Polymer: Internal Coating of Electric Dehydrator for Offshore Drilling Platform LuFeng 7-2 / South China Sea

Project:
Internal coating of electric dehydrator for offshore drilling platform

• Owner: Newfield China LDC
• Engineering and construction of the platform: Shenzhen CSE, Shekou Shenzhen/China
• Application of the coating: Shenzhen Yue Yang Company, Shenzhen/ China
• Coating Product: "Ceramic-Polymer SF/LF-ARAMCO-APCS-2i,28,117"
• Completion: April 2014

For the new built offshore drilling platform LuFeng 7-2 an electric dehydrator was coated internally with the premium coating "Ceramic-Polymer SF/LF-ARAMCO-APCS-2i,28,117".

More technical information

- Medium: crude oil, water
- Design pressure: 0.75 MPa
- Test pressure: 0.94 MPa
- Design temperature: 140°C
- Coating area: approx. 232 qm

The product "Ceramic-Polymer SF/LF-ARAMCO-APCS-2i,28,117" was tested extensively by research laboratories of “Saudi Aramco” and was approved for application in accordance with their demanding requirements of the standards APCS-2i, APCS-28 and APCS-117 (Engineering Standards 2010, SAES-H-001; Coating Selection and Application, Requirements for Industrial Plants and Equipment). Specific aspects for the achieved approval were e.g. the excellent chemical resistance at high operating temperatures up to 150°C and the extreme pressure resistance, which was proven by autoclave-tests with explosive decompressions.

Surface Preparation and Application of the Coating

The heavy corroded dehydrator before blasting and coating. Internal electrode components and pipe fittings were dismantled and treated separately.
The tank was cleaned with high pressure water jet to remove all contaminations, then it was sandblasted thoroughly according to standard SSPC-SP10. Afterwards the surface was visually inspected; it shows a roughness profile of 50-100 µm. Additional tests to determine the concentration of soluble salts (Bresle method) were conducted. They met all requirements.

The product "Ceramic-Polymer SF/LF-ARAMCO-APCS-2i,28,117" was applied by airless spraying in 2 layers of 400 µm each to achieve the required thickness of 800 µm. After full curing the total coating thickness was accurately measured and the surface was inspected with an electronic spark detector (Holiday tester, high voltage 5 kV). No pinholes were detected, the coating material showed a smooth surface. Thereafter, weld joints and supporting points of the holders inside the tank were additionally coated by brush.

Great Application Results for long-term Protection

For final completion the coated inlet pipelines and electrode components were reinstalled.

The Ceramic Polymer GmbH produces high-quality, solvent-free protective coatings for different kinds of industries. Due to the integration of microscopic ceramic and other special particles, coating systems with outstanding physical properties such as excellent chemical resistances, high temperature stabilities and extreme abrasion resistances are generated.
The Ceramic Polymer coatings are applied directly on the blasted substrate (e.g. steel, stainless steel, concrete) without the previous use of a primer. In this way extreme adhesion is achieved.
The scopes of the Ceramic Polymer coatings are for instance all kinds of storage tanks, pipelines or process vessels for the oil & gas industry as well as different maritime constructions, waste water or drinking water applications.

Ceramic Polymer GmbH

Stephanie Wuensch
Daimlerring 9
DE-32289 Roedinghausen / Germany

+49 (0)5223-96276-0

swu@ceramic-polymer.de
Web: www.proguard-coatings.de

This release was published on openPR.