TUBULAR DRILLING MATERIAL, a type of DRILLING EQUIPMENT AND MATERIALS.
Tubular Drilling Material are a type of Drilling Equipment and Materials. This subcategory encompasses oil country tubular goodsseamless rolled products such as drill pipe, casing and tubingand their accessories. It also includes drilling tools like kellys, jars and shoes, as well as OCTG accessories such as bar stocks, pump joints, float equipment, swages and cross?overs, valves and blow?out preventer rams, scrapers, drifts, wash tools, centralisers, cementing plugs and other joints that connect the OCTG components inside the borehole. Manifolds are addressed under the well completion group. Premium casing and tubing refer to proprietary threaded products offered by certain manufacturers, and API or premium thread machining denotes licensed facilities that machine OCTG threads. Drilling mills are considered smaller types of drill bits.