Drill Collar

Drill collar Standard:api spec 7 drill collar Material:aisi 4145h alloy steel or non-magnetic material Specification: Od:3 1/8"-11" Length:10'-31' Type: slick drill collars and spiral drill collars

Types of drilling collar we offer: 1. Api spiral drilling collar 2. Slick drill collar 3. Non-magnetic drill collar Export packaging

Aisi 4330v mod forgings in different shape for various industries such as the drill rod for the mining industry, stabilizer & drilling jar for the oil industry

Stabilizer blank Forgings made from AISI 4145H or AISI 4145H Modified for stabilizers. Heat treated and machined as requirements from the customer. Can be with or without spirals. Size: Up to 26 working OD Material: AISI 4145H Mod, AISI4145H or under requirements. After heat treatment and machining, the Hardness is HB290-340, Strength is b b 965 Mpa (D2 160mm) b b 931 Mpa (D2 160mm) Impact strength is AK 54J. We inspect every piece by cutting a piece from its body, every forging should have an inspection report with delivery. Stabilizer with Hardfacing & thread The Stabilizer manufactured by our factory has three types according to its body/mandrel, The mechanical performances of the stabilizer are complied with API Spec.7.: 1.Integral Blade Stabilizer 2.Interchangeable Sleeve Stabilizer. The body (or mandrel) is made of modified alloy steel, and fully heat treated for prospective hardness, strength and impact strength. Through ultrasonic testing and magnetic testing, it is proved up to flowing grade. Material 40CrMnMo(4145H) Hardness HB290-340 Strength b b 965 Mpa (D2 160mm) b b 931 Mpa (D2 160mm) Impact strength AK 54J. The connections are up to API standard which have stress relief grooves and are cold rolled. The flank of thread is phosphatized or plated copper, coated with thread dope and equipped with thread protectors. It is mainly the spiral blades (usually three blades, also can be four blades under the customer's require) , which rub against the borehole wall. The working surface of the blades is hard faced. The hardfacing type we can provide are HF1000, HF2000, HF3000, HF4000. It is preferred operation that tungsten carbide inserts are cold inserted into the working surface of blades including its bevels. Braze welding tungsten carbide grains are also adopted according to customer's require.

Working loads rang from 250t to 500t, and cover pipe sizes from 3¨ö; to 6¨ý od, iu, eu, or ieu. 395kgs

Supplier: Drilling collars and HWDP
Services: Technical services
Buyer: Oilfield equipment bop top drive

Supplier: Oil field products, drill pipe, drill collar

Supplier: Casing, tubing, line pipe, drill pipe, drill collar, oil refinery, parking system

Supplier: Drill tool, casing, drilling rig, work over rig, drill pipe, drill collar, solid control system, petroleum equipment accessories