This standard specifies the structure, technical requirements, coating application, quality inspection, marking, packaging, storage, loading, unloading and transportation of non-metallic inner coatings on drill pipes. This standard applies to internal coatings for drill pipes of various types and specifications that comply with API Spec 5D, SY/T 5561. Internally coated drill pipes using this standard are recommended for use in oil and gas drilling conditions where the drilling temperature is no higher than 204°C and the pH value of the drilling fluid is 2 to 12.5. Use in environments containing HS corrosive media requires consultation with the user.
SY/T 0544-2010 Referenced Document
API Spec 5D Specification for Drill Pipe Fifth Edition*, 2024-04-19 Update
ASTM D714 Standard Test Method for Evaluating Degree of Blistering of Paints
GB 12348 Emission standard for industrial enterprises noise at boundary
GB 7692 Safety code for painting.Safety、ventilation and air clean-up for pretreatment process of painting*, 2012-07-31 Update
GB/T 1727 General methods for preparation of coating films*, 2021-08-20 Update
GB/T 228 Metallic materials--Tensile testing at ambient temperature
GB/T 8923 Rust grades and preparation grades of steel surfaces before application of paints and related products
GBZ 1 Hygienic standards for the design of industrial enterprises
JJG 2018 Verification Scheme of Measuring Instruments for Surface Roughness