Gp 6 1/2³ Spiral Drill Collars

Making of aisi 4145h alloy steel, this is a kind of dill collar which add three right out of spiral groove on the outer circle of ordinary drill collar when processing. The main effect is to reduce the drill collar wall in the area of contact and friction when working, maintain uniformity with the mud through spiral mobile, keep the balance of drill string and prevent pressure sticking. The single weight of spiral dill collar is 4% lighter than the same specification of ordinary dill collar , the two ends of the thread and the general shape are the same with drill collar. According to the form of spiral it is divided into type i and type ii. It need to be discuss.

Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. MS brand spiral drill collars are manufactured strictly according to API Spec7-1 and standard SY5144.

A. Slick Drill Collar Note: Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. The Drill collar are manufactured strictly from API Spec7-1 and SY5411 standard. B. Spiral Drill Collar Note: Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144 C. Spiral Drill Collar With Elevator Groove And Slip Groove Note: Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API SPEC7-1. Hardbanding is optional at customersâ?? requests. D. Non-magnetic Drill Collar The as cold rooled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress,corrosion,cracking and the mechanical performance is greatly enganced.

Supplier: We are merchant traders have two different divisions, one is plant/ machineries, industrial equipements, and other divisions is export / import of agricultural commodities, spices, processed foods, we are exporters for all type of plants, machineries, and friction welding machine, friction stir welding machine, cnc heavy duty lathe machine, lathe machine, 8k 4k mirror polishing machine, gun driling machine, cnc vtl, cnc plano miller our commodities includes grains, pulses, spices, processed foods, coconut related products, rices, coconut powder, multani mitti ( fullers earth) , makhana, banana powder, etc
Services: We are exporters and importers of all type of commodities and machineries.
Buyer: We are importing all types of spices, grains, pulses, processed foods, coconut powder, coffee, cashew, nuts, vegetables, fruits etc

Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension.Manufactured from AISI 4145H modified quenched and tempered steel.

SPIRAL DRILL COLLAR Drilling Tool China drilling motor

Lowest price API 7-1 non magnetic spiral drill collar Product Description Drill Collar is the basic component in the BHA which provide weight on the bit for dirlling and keeps the drill string in tension.Drill collar is manufactured from AISI 4145H modified quenched and tempered steel and is heat treatment along its entire length for uniform toughness and durability. Srict netallurgical test are performed pre specifications to ensure that the heat treatment produces consisitent and maxium hardness through the depth of the bar. Feartures and benefits: 1. hardness rannge of 285 to 341 BHN and a charpy impact value of 40ft/lbs are guaranteed for evenly distributed 16 points in any cross sections at room temperature 2.Connections ar phosphate coated afther machinning to protect the threads from corrosive elements and to prevent galling upon initial make -up Thread roots are cold rolled on API and H0-90 connections 3.Pressed steel thread protectors are supplied fo all drill collar that are equipped with standard connections