Well Drilling Spiral Drill Collars Suppliers and Manufacturers

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.

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.

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

Orchid Energy could supply slick type drill collar, spiral drill collar and Non-magnetic drill collar (NMDC). Orchid Energy can provide three types of Non Magnetic Drill Collar: Non Magnetic Slick Drill Collar, Non Magnetic Spiral Drill Collar, Non Magnetic Flex Drill Collar, Pony Collar.(P530,P550 material etc) Non Magnetic Drill Collar (NMDC) are made from low-carbon stainless steel as API specification and implementation of SY/T5144 standard, which can be cold thread rolling, machine special double shoulder thread and do as other specifications request. Non Magnetic Drill Collar are as a housing for MWD tools and also could provide weight for drill string. Test and Inspection carried out on each bar: Chemical Composition, Tensile Test, Impact Test, Hardness Test, Metallographic Test, Corrosion Test, Ultrasonic Test over the whole length of the bar, Relative magnetic permeability Test, Hot spot Test, Dimensional Inspection. Slick/Spiral Drill collar is produced by AISI 4145H modified quenched and tempered steel as API specification and implementation of SY / T5144 standard, which can be cold thread rolling, copper or phosphate processing, machine special double shoulder thread and other specifications. Slick/Spiral Drill collarFeatures & Benefits: Pressed steel thread protectors are supplied for drill collar; Stress relief groove & bore back Box applied if needed; Hardbanding material ARNCO 100XT,ARNCO 300XT,TCS8000 applied if needed; Slip and elevator recess are machined in accordance with API7-1;

The spiral drill collars are made of 4145HMOD modified chromium-molybdenum alloy steel according to API Spec 7-1 . All threads can be phosphated,copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and a special thread, the max diameter of spiral drill collar is 14 inch. Out diamete: 3 7/8"~ 14"(inch) Depth of cut: 4.0 ~ 11.9 (mm) Length: 9150+150(mm) Standard size�?� for�?� drill collar Connection # OD ID L mm DF mm Bending strength ratio mm in mm In NC23-31 79.4 3 1/8 31.8 1 1/4 9150 76.2 2.57:1 NC26-35 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42:1 NC31-41 104.8 4 1/8 50.8 2 9150 or 9450 100.4 2.43:1 NC35-47 120.7 4 3/4 50.8 2 9150 or 9450 114.7 2.58:1 NC38-50 127.0 5 57.2 2 1/4 9150 or 9450 121.0 2.38:1 NC44-60 152.4 6 57.2 2 1/4 9150 or 9450 144.5 2.49:1 NC44-60 152.4 6 71.4 2 13/16 9150 or 9450 144.5 2.84:1 NC44-62 158.8 6 1/4 57.2 2 1/4 9150 or 9450 149.2 2.91:1 NC46-62 158.8 6 1/4 71.4 2 13/16 9150 or 9450 150.0 2.63:1 NC46-65 165.1 6 1/2 57.2 2 1/4 9150 or 9450 154.8 2.76:1 NC46-65 165.1 6 1/2 71.4 2 13/16 9150 or 9450 154.8 3.05:1 NC46-47 171.4 6 3/4 57.2 2 1/4 9150 or 9450 159.5 3.18:1 NC50-67 171.4 6 3/4 71.4 2 13/16 9150 or 9450 159.5 2.37:1 NC50-70 177.8 7 57.2 2 1/4 9150 or 9450 164.7 2.54:1 NC50-70 177.8 7 71.4 2 13/16 9150 or 9450 164.7 2.73:1 NC50-72 184.2 7 1/4 71.4 2 13/16 9150 or 9450 169.5 3.12:1 NC56-77 196.8 7 3/4 71.4 2 13/16 9150 or 9450 185.3 2.70:1 NC56-80 203.2 8 71.4 2 13/16 9150 or 9450 190.1 3.02:1 6 5/8 REG 209.6 8 1/4 71.4 2 13/16 9150 or 9450 195.7 2.93:1 NC61-90 228.6 9 71.4 2 13/16 9150 or 9450 212.7 3.17:1 7 5/8 REG 241.3 9 1/2 76.2 3 9150 or 9450 223.8 2.81:1 NC70-97 247.6 9 3/4 76.2 3 9150 or 9450 232.6 2.57:1 NC70-100 254.0 10 76.2 3 9150 or 9450 237.3 2.81:1 8 5/8REG 279.4 11 76.2 3 9150 or 9450 266.7 2.84:1 8 5/8REG 355.6 14 76.2 3 9150 or 9450 266.7 2.84:1

Drill collars are extra-heavy integral tools used to concentrate weight onto the drill bit so as to produce sufficient force for the drill bit to break rock efficiently while drilling. They are made of AISI 4145H or 4145H modified steel and are connected between drill pipes and drill bits. Our drill collar connections comply with dimensional requirements specified in API Spec 7-1. Drill collars also come with slip and elevator recesses for safe and efficient handling. Slip and elevator recesses can be used together or separately. Contact Us For more information, you can contact me : Looking forward to cooperating with you!

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EQUIPMENT SUMMARY Price : $4,300.00Type : Equipment For SaleDate : April 18, 2022Make : Grant PridecoModel :Year :Condition : NewWarranty : NoLocation : USA DESCRIPTION 51 joints of Grant Prideco 6 1/2â?³ Spiral Drill Collars NC-46 w/ MTR Price is per collar We also have at the same price per collar Grant Prideco 6 3/4³ Spiral Drill Collars, NC -50 with MTR 3 joints

We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.

4145h api 7-1 drill collars are made of modified aisi 4145h chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain astm a-370 mechanical properties. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of 285 to 341 bhn and an impact value of 40 ft.-lbs. At room temperature one inch below the surface. To ensure close tolerance bores, all drill collar bars are trepanned then drifted to api specifications. Bar surface finish is “as rolled” which is original mill finish. Connections: All connections are precision-machined to api specifications. Api relief groove pin and bore back box stress relief are available on request. Thread roots are cold-worked to offer a greater resistance to fatigue. All connections are phosphated to minimize galling during makeup and applied with thread storage compound. Thread protectors are installed to ensure adequate joint protection during shipment.

Command Energy’s drill collars are made of modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain mechanical properties as specified by API Spec 7-1. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of 285 to 341 BHN and an impact value of 40 ft-lbs at room temperature, one inch below surface. All drill collar bars are trepanned then drifted to API specifications to ensure close tolerance bores. Drill collars are also supplied with the outer surface either machined or rough peeled.