从China供应商批发进口4145h 3 1/2" 6 3/8" Heave Weight Drill Pipe — FOB条款

This heavy weight drill pipe (HWDP) is an intermediate-weight drill stem component manufactured from premium 4145H chromoly alloy steel, supplied by Dongying Lake Petroleum Technology Company in China. Designed for use between drill collars and standard drill pipe, it offers enhanced stiffness to reduce buckling in vertical and directional drilling applications. The 3 1/2 inch nominal size features a 6 3/8 inch OD tool joint connection, with heavy wall construction for durability in high-stress environments.

The pipe is produced from one-piece AISI 4145H modified steel, quenched and tempered for toughness in demanding oil and gas drilling operations. Standard design includes a center upset or wear pad to extend tube life, reduce hole drag, and minimize differential sticking. Connections are phosphate coated to prevent galling, with cold-rolled thread roots on API and H-90 connections. Pressed steel thread protectors are supplied as standard, while internal coating and hardfacing are available on request.

HWDP from this Shandong-based supplier is widely used in international oilfield services, particularly where additional weight on bit is required without the bulk of drill collars. Buyers typically source this as API oil country tubular goods (OCTG) for deepwell and directional drilling projects. The product is traded globally under standard API specifications, with spiral and non-magnetic variants available for specialized applications.

Dongying Lake Petroleum Technology Company is based in Dongying, Shandong Province, China, with its address listed along Huanghe Road in the 257000 postal district. The company specializes in oilfield equipment, including heavy weight drill pipe and other API tubular goods. Its product lineup targets international buyers in the oil and gas exploration sector, with a focus on durable components for high-stress drilling environments.

The supplier’s profile indicates a harbor trust tier, though current response metrics are unavailable. The company positions itself as a manufacturer of premium alloy steel drill stem components, with capabilities to provide custom specifications such as spiral or non-magnetic designs. No additional verification details, client references, or historical data are provided in the available listing.