Non Mag Heavy Weight Drill Pipe Hwdp

• Customization: Available
• After-sales Service: Timely After-Sale Assistance
• Warranty: 12 Month
• Model NO.: According to the custom
• Manufacturing Process: CNC Milling
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Stainless Steel
• Transport Package: Standard Export Packing
• Specification: customizable
• Trademark: East heavy
• Origin: Henan China

Product Description

Product Description

Drill pipe in drilling engineering is a vital tool, which bears the heavy responsibility of transmitting torque and conveying drilling fluid. In modern drilling operations, the design and manufacturing process of drill pipe has been continuously optimized to ensure that it can cope with different geological environments and complex drilling requirements. Among them, heavy weight drill pipe (HWDP) as a special type of drill pipe is particularly important in the underground performance. This article will introduce the structure, function, manufacturing process and application of HWDP in drilling engineering in detail.


Basic structure and function of HWDP
Heavy weight drill pipe (HWDP) is one of the key components of the drill string. It is usually placed between ordinary drill pipe and drill collar to play a transitional role. Its main function is to alleviate the stress concentration problem between rigid drill collar and more flexible ordinary drill pipe, thereby effectively reducing the risk of fatigue failure of the drill string. The wall thickness of HWDP is significantly greater than that of ordinary drill pipe, which enables it to withstand higher drilling pressure and reduce the contact area between the drill string and the well wall, thereby slowing down the wear rate of the outer diameter.


HWDP is unique in that it has an outer diameter similar to that of ordinary drill pipe, which is not only convenient for drilling rig operation, but also allows for a seamless transition from ordinary drill pipe to drill collar. The thick wall design of HWDP allows it to absorb stress, thereby preventing potential failures caused by drill pipe fatigue. To extend the service life of HWDP, we usually add a wear pad in the center of its pipe body and harden it to increase wear resistance.


 

Product Parameters

 

The Non-magnetic heavy weight drill pipes are made of low carbon stainless steel.ace.to API Spec.7 and  API Spec.7 and SY/T5146. All threads are phosphated,copperized or cold worked.All Connet-ions are equipped with press steel thread protectors. All threads are machined with CNCLa-thes-Double-shouldered and special threads.

 

Non-magnetic heavy weight drill pipe specification

Size	OD		ID		Connerction				Body
					Style	OD		mm Bevel diameter Pin and box	Thickened part dimensions
	mm	in	mm	in		mm	in		mm Center area	mm End area
WJZ66-65/8FH-I	168.3	52/8	114.3	41/2	65/8FH	209.6	81/4	195.7	184.2	176.21
WJZ55-51/2FH-I	139.7	51/2	92.1	35/8	51/2FH	177.8	7	170.7	152.4	144.5
WJZ50-NC50-I	127	5	76.2	3	NC50	168.3	65/8	154	139.7	130.2
WJZ45-NC46-I	114.3	41/2	71.4	213/16	NC46	158.8	61/4	145.3	127	117.5
WJZ40-NC40-I	101.6	4	65.09	29/16	NC40	133.35	51/4	127.4	101.6	98.43
WJZ35-NC38-I	88.9	31/2	52.39	21/16	Nc38	120.7	43/4	116.3	101.6	92.1
WJZ29-NC31-I	73.03	27/8	50.8	2	NC31	104.8	41/8	100.4	84.1	81.0

 

Mechanical property

OD		Yieldstrength		Tensilestrength		Elongation	Shrinkage	Hardnes	Impact Akv
mm	in	Ksi	Mpa	Ksi	Mpa	%	%	HB	J
≤180	≤7	≥120	≥828	≥135	≥931	≥25	≥50	285-360	≥75
>180	>7	≥110	≥759	≥130	≥897	≥25	≥50	285-360	≥75

 

Magnetic property

(Magnetic field=1×10⁵/4π A/m)

1.Relative permeability μr<1.010

2.Magnetic field gradient :ΔB≤0.05μT

Jiyuan City East Heavy Industry Co., Ltd. is a new hi-tech enterprise that produces " East Heavy Industry" brand oil drilling and production equipment and geological exploration tools. It is located in Jiyuan City of Henan Province on the shore of the famous Xiaolangdi Hydro Complex. The Company covers a land area of over 30,000 square meters, possesses 100 million yuan of assets, and has established a good cooperative development relationship with authoritative units such as University of Petroleum, Taiyuan University of Technology, Xi'an Petroleum Pipe Research Institute, etc., providing strong technical force for product development.
 

 

The Company possesses a complete set of petroleum drilling tool production lines and mainly produces large deep-hole boring machines, ordinary lathes, CNC lathes, mill, printer, etc. The Company has established a dedicated testing center that is equipped with domestic and overseas advanced precision testing equipment and sound testing means to control the whole process of products and strictly abides by API 7-1, API 7-2, SY/T5144 and SY/T5146 standards to ensure that all performance indexes of the Company's products can meet international standards and standards of American Petroleum Institute (API). The Company has passed IS09001 quality management system certification and HSE management system certification and has obtained the right to use the logos of API petroleum drilling tools. Main drilling tools include non-magnetic drill collar, non-magnetic pressure drill pipe, ordinary drill collar, integrated heavy weight drill pipe, adapter, etc. The annual production capacity is 10,000 pieces. The Company can also machine products according to special requirements of users.
 

"Honest Based, Innovative Management, Keeping Improving and Pursuing Excellence" has always been the guideline of our company. We will perform extensive economic cooperation and technical exchange with friends in all walks of life at home and abroad relying on our high business reputation, strong capital force and technical strength, striving to develop and manufacture drilling and production equipment jointly and create a bright future. 



 

Certifications

 

 

 

FAQ

 

Q: What products do we manufacture? „
A: The main products are non-magnetic drill collar, non-magnetic pressure drill pipe, non-magnet short drill collar, Directional joint, ordinary drill collar, integrated heavy weight drill pipe, square drill pipe, hexagonal drill pipe, spiral drill pipe, centralizer, adapter and some long shaft products.


Q: What differentiates our company from other competitors? 

A:  Competitive Pricing

In today's competitive environment, price is the leading factor influencing customers' procurement choices. We are able to supply quality equipment and spares at competitive prices through our business relationship with a wide network of suppliers, an efficient inventory control and bulk-buying strategy.
 

Strong Customer Relationships with a Wide Customer Base

Over the more than 40 years we have been in business, we have developed strong customer relationships from a wide customer base from all over the world.
 

Strong Relationships with Suppliers

Similarly, throughout more than 4 decades, we have worked with and developed strong rapport with suppliers through shared business experiences.


Q: What certifications do we have that demonstrate our quality standards (i.e. ISO certifications, etc.)? 
A: Our tools are rigorously tested for quality and performance, ensuring compliance with industry standards like API 7-1, API 7-2, SY/T5144, and SY/T5146 specifications. The Company has passed IS09001 quality management system certification and HSE management system certification and has obtained the right to use the logos of API petroleum drilling tools. We also have our professional QC and all the products will be strict inspection and testing for every order before shipping out.