Crossover Sub Saver Sub for Oil Well Drilling

• After-sales Service: Online Service
• Warranty: 12 Month
• Manufacturing Process: Forging
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: all model
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Steel Grade: AISI 4145h
• Thread Type: If Reg Nc Fh
• Thread Size: 2-3/8′′ to 6-5/8′′
• Standard: API 7-1
• Transport Package: Wooden Box
• Specification: CUSTOM MADE
• Trademark: JX PETRO
• Origin: Dongying
• HS Code: 84314310
• Production Capacity: 2000PCS/Month
• Package Size: 55.00cm * 25.00cm * 25.00cm
• Package Gross Weight: 80.000kg

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.

Product Parameters

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.

 

Pin-Box  Adaptors
Model	Size A(mm)	Size B(mm)	Size C(mm)	Wrench Flat(mm)
2 3/8 REG pin - 2 3/8 REG box	25	45	78	57
2 3/8 IF pin - 2 3/8 REG box	25	45	89	70
2 3/8 IF pin - 2 3/8 IF box	25	45	89	70
2 3/8 REG pin - 2 7/8 REG box	25	45	102	70
2 7/8 IF pin - 2 7/8 IF box	25	45	108	85
3 1/2 REG pin - 3 1/2 REG box	25	50	114	95

 

Box-Box Adaptors
Model	Size A(mm)	Size B(mm)	Size C(mm)	Wrench Flat(mm)
2 3/8 REG box - 2 3/8 REG box	97	45	89	70
2 3/8 REG box - 2 7/8 REG box	115	50	102	85
2 3/8 IF box - 3 1/2 REG box	102	50	114	95
2 7/8 REG box- 3 1/2 REG box	122	50	114	95

 

Pin-Pin Adaptors
Model	Size A(mm)	Size B(mm)	Size C(mm)	Wrench Flat(mm)
2 3/8 REG pin - 2 3/8 REG pin	21	45	89	70
3 1/2 REG pin - 3 1/2 REG pin	23	50	114	95
3 1/2 REG pin - 4 1/2 REG pin	30	50	140	102
4 1/2 REG pin - 4 1/2 REG pin	30	50	140	102

 

Detailed Photos

 

Drawing

 

 

machining process