API Standard Oilfield Drilling Crossover Joint / Saver Sub/ Bit Sub

• Customization: Available
• After-sales Service: 24/7
• Warranty: 12 Months
• Model NO.: BOBAN
• Manufacturing Process: Casting
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Alloy Steel
• Application: Oil and Gas Well Drilling
• Advantage: High Performance
• Machine Type: Drilling Equipment
• Thread: Nc23
• Transport Package: by Container or Bulk Vessel
• Specification: As per sizes
• Trademark: BOBAN & OEM
• Origin: China
• HS Code: 8431431000
• Production Capacity: 1000PCS Per Month

Product Description

Product Description

Cross-over sub acts for conversion and connection and is the basic component in downhole work. It is divided into drill string cross-over sub and tubing Cross-over sub. Drill string Cross-over sub is divided into type A, type B and type C.And we can desgin and manufacture special types of subs to satisfy clients' ideas or drawings . 

1.OD:57mm-168mm

2.Material:35CrMo/40Cr/4137H

3.Length: N:235mm M:195mm or as your request

4.Apply to connection 50mm drill rod Well Drilling,Geological drilling

5.Tool Joint: NC26, NC31, NC38, NC40, NC46, NC50, Vam Top or as your request

Lift Sub
A lift Sub enables safe and efficient handling of straight OD tubulars such as drill collars, shock tools, jars, directional equipment and other tools by using the drill pipe elevators.

Saver Sub
When rods is added to increase the depth of drilling, the loosening of the threads are now performed at the bottom end of the Saver Sub  as opposed to the bottom of the Kelly which is the most valuable part of the drill string. This means that the connection between the top end of the Saver sub and Kelly is seldom used, and suffers minimal  wear and tear, whereas the lower connection is used in almost all cases displacing the most wear and tear from the rotary head connection to the much cheaper Saver Sub which is expendable and reduce cost.

Crossover sub
Description	Upper Connection pat	Lower Connection Part	Type
Kelly cross-over sub	Kelly	Drill pipe	A or B
Drill pipe cross-over sub	Drill pipe	Drill pipe	A or B
Interim cross-over sub	Drill pipe	Drill collar	A or B
Drill collar cross-over sub	Drill collar	Drill collar	A or B
Drill bit cross-over sub	Drill collar	Drill bit	A or B
Swivel cross-over sub	Swivel lower sub	Kelly	C
Fishing cross-over sub	Kelly	Drill pipe	C
	Drill pipe	Fishing tools	C
** Crossover sub can be customized as per customer's design.

 

Detailed Photos

Packaging & Shipping

Company Profile

Xi′an BOBAN Oil Tools Co., Ltd. Make & Supply a full line of equipment for O& G, horizontal directional drilling (HDD), micro-tunnelling, pipe jacking, etc, In O& G section, we can supply drilling rig component, downhole drilling tools, fishing tools, tubular handling tools, well control equipments, drilling fluid mixing & Recycling system, solid controling equipments and other relevant oiltools,
All our products are API certified, and we are also authorized by ISO: 9001-2000. With advanced production facilities, rigorous quality management, and the joint efforts of our experting staff, Boban has been qualified vendor for many renowned companies in Italy, Germany, Poland, UAE, Kuwait, Egypt, & South East Asia, etc since its establishment in 2018. And obtained a good reputation among the offshore customers as well as other industrial clients.
With our reasonnal prices, quick reaction, high quality products and deliver anywhere on time as well as superior service, Boban has stablished good cooperation relationship with many well-known customers in the world, and also wish to have the chance to work with more and more customers from all over the world! 

 

Certifications

Why choose us?

1. As a professional oil and gas service company, Boban petroleum has many good experience is selling and serve for the oilfield industries, quality is the culture of the company, we obtained the API standard for all the oiltools, and also certified by ISO:9001-2000.
2. Good service for the communication, delivery and after sales.
3. With rich experience, so we can be your long term supplier.
4. Own factories in China mainland
5. QUALITY SESTEM to make sure the superior high quality
6. Large product series for one-stop service 
7. Consulting, suggesting, help find perfect solution