api 7 1 spiral drill collar

Brand Name:TR Solids Control

Model Number:TRDT

Place of Origin:Xi'an China

.... The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144. 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

Place of Origin:China

Brand Name:SHUGUANG

The surface finish of slick drill collar shall be hot-rolled and mill –finished. Spiral drill collar is to do slot turning outside the surface. Spiral groove on drill collar 's OD make the drilling fluid evenly, equal pressure, with less differential ...

Model Number:All types

Place of Origin:China

API 7-1 Spec 6-3/4" AISI 4145H Spiral DC Drill Collar For Oil Well Drilling 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

Place of Origin:China

Brand Name:Kangyu

Model Number:ZH-JZ55-5 1/2FH

Drill Collar features: • High quality, unique material • Special medium frequency heat treatment method • Meet the requirements of API SPEC7-1 • Aadvanced super magnetic method and mechanical properties •Strict quality management system •We can provide the common drill collar, Spiral drill collar,and non-magnetic Drill Collar...

Brand Name:JCDRILL

Model Number:175*4500mm

Place of Origin:Hebei,China

... to drill pipe and centralize the drill bit. According to API Spec7-1 specifications, the material quality is 4145H that’s after heat treatment, thread hardening treatment and phosphate to better anti-seize. It also can be produced upon ...

Place of Origin:Jiyuan, China (Mainland)

Brand Name:KY

... heated to meet or exceed the mechanical property requirements of API Spec.Hardness range of 285-341HB and a charpy “V”notch impact value of 54 joules are guaranteed one inch below the surface When enquiries or orders,please specify: Slick or spiral ;

Brand Name:Pangolin

Place of Origin:Hebei China

Spiral Non Magnetic Drill Collars Non Magnetic Drill Collar Spiral Drill Collars For Oil Field Equipment Introduction The non-magnetic drill collar is made of low-carbon high-chromium manganese alloy steel. It is refined by strict chemical composition, and...

Brand Name:Pangolin

Place of Origin:Hebei China

...'s geomagnetic field when measuring the direction of the borehole, the measuring instrument must be in a non-magnetic environment. However, in the drilling process, the drilling tool is often magnetic and contains a magnetic field, which affects the

Brand Name:SWS

Place of Origin:China

Product Description: Stop Collar Product Overview The Stop Collar, also known as Drilling Stop Collar, Pipe Stop Ring or Oilfield Equipment, is an essential component used in oil and gas drilling operations. It is designed to prevent the drill pipe from ...

Brand Name:ZS

Model Number:13 3/8″ to 4 1/2″

Place of Origin:China,Henan

API-certified Casing Centralizer Stop collars 1.Application and characteristic of stop collar: Position device (stop ring or stop collar), called position ring, stop circular, brake ring, etc. It is used to limit the centralizer or cement basket slip on ...