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H₂S/CO₂-油-水環境におけるSMSS 13CrおよびDSS 22Cr

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Introduction The corrosion behaviors of Super Martensitic Stainless Steel (SMSS) 13Cr and Duplex Stainless Steel (DSS) 22Cr in an H₂S/CO₂-oil-water environment are of significant interest, especially in the oil and gas industry, where these materials are often exposed to such harsh conditions. Here’s an overview of how each material behaves under these conditions: 1. Super Martensitic Stainless Steel (SMSS) 13Cr: Composition: SMSS 13Cr typically contains around 12-14% Chromium, with small amounts of Nickel and Molybdenum. The high Chromium content gives it good resistance to corrosion, while the martensitic structure provides high strength. Corrosion Behavior: CO₂ Corrosion: SMSS 13Cr shows moderate resistance to CO₂ corrosion, primarily due to forming a protective […]

石油貯蔵タンクの建設：プレートの選択とプロセス

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Introduction Building oil storage tanks is critical to the oil and gas industry. These tanks must be designed and built precisely to ensure safety, durability, and efficiency in storing oil products. One of the most critical components of these tanks is the selection and processing of plates used in their construction. This blog provides a detailed overview of the plate selection criteria, fabrication processes, and considerations for building oil storage tanks. Importance of Plate Selection Plates are the primary structural component of oil storage tanks. The selection of appropriate plates is crucial for several reasons: Safety: The suitable plate material ensures the tank can withstand the stored product’s internal pressure, […]

ジェット A-1 燃料パイプラインに適したエポキシプライマーコーティングの選択

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Introduction In the highly specialized field of aviation fuel transportation, ensuring the integrity and safety of Jet A-1 fuel pipelines is critical. These pipelines must withstand harsh chemical environments, prevent corrosion, and minimize the risk of static electricity build-up. Selecting the proper epoxy primer coating is essential for achieving these goals. This blog explores the best epoxy primer coating for Jet A-1 fuel pipeline options and their significance in maintaining efficient and safe fuel transport systems. Why Epoxy Primer Coatings? Epoxy primer coatings are widely used in the fuel industry for their exceptional protective properties. They provide a robust barrier against corrosion and chemical attacks, extending the pipeline’s lifespan and […]

石油・ガス田におけるスーパー13Crの応用

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Introduction In the ever-demanding world of oil and gas exploration, where harsh environments and extreme conditions are the norm, selecting suitable materials is crucial for operational success and safety. Among the array of materials used in the industry, Super 13Cr stainless steel stands out as a top choice for applications requiring exceptional corrosion resistance and durability. Let’s explore why Super 13Cr is the material of choice for modern oil and gas field applications and how it outperforms other options. What is Super 13Cr Stainless Steel? Super 13Cr stainless steel is a high-chromium alloy designed to withstand the severe conditions found in oil and gas operations. Its composition typically includes around […]

NACE MR0175/ISO 15156 とは何ですか?

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NACE MR0175/ISO 15156 is a globally recognized standard that provides guidelines for selecting materials resistant to sulfide stress cracking (SSC) and other forms of hydrogen-induced cracking in environments containing hydrogen sulfide (H₂S). This standard is essential for ensuring the reliability and safety of equipment used in the oil and gas industry, particularly in sour service environments. Critical Aspects of NACE MR0175/ISO 15156 Scope and Purpose: The standard addresses the selection of materials for equipment used in oil and gas production that are exposed to environments containing H₂S, which can cause various forms of cracking. It aims to prevent material failure due to sulfide stress, corrosion, hydrogen-induced cracking, and other related […]

油井完成：石油・ガス井における OCTG の適用と設置手順

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Introduction Oil and gas exploration and production involve complex equipment and processes. Among these, the proper selection and use of tubular goods—drill pipes, drill collars, drill bits, casing, tubing, sucker rods, and line pipes—are crucial for the efficiency and safety of drilling operations. This blog aims to provide a detailed overview of these components, their sizes, and their sequential use in oil and gas wells. 1. Drill Pipe, Drill Collar, and Drill Bit Sizes Drill Pipes are the backbone of the drilling operation, transmitting power from the surface to the drill bit while circulating drilling fluid. Common sizes include: 3 1/2 inches (88.9 mm) 4 inches (101.6 mm) 4 1/2 […]