API 7-1 Crossover Sub of 3-1/2 Reg Pin X Nc38 Box

• After-sales Service: Online Support
• Warranty: /
• Manufacturing Process: Forging
• Surface Treatment: Painting
• Operation Pressure: /
• Material: Alloy
• Model NO.: API 7-1 Crossover Sub of 3-1/2 REG pin x NC38 box
• Name: API 7-1 Crossover Sub of 3-1/2 Reg Pin X Nc38 Box
• End: 3-1/2 Reg Pin X Nc38 Box
• MOQ: 10ea
• Quality: High Level
• Standard: API 7-1
• Transport Package: Wooden Carton / Iron Carton
• Specification: API 7-1 Crossover Sub of 3-1/2 REG pin x NC38 box
• Trademark: LK
• Origin: China
• HS Code: 84314310
• Production Capacity: 50000PCS/Month

Product Description

API 7-1 Crossover Sub of 3-1/2 REG pin x NC38 box

Product Description

Crossover sub is mainly used to connect upper and lower drill tools in different connectors in drilling operations. Also it can be used to protect other tooling in drill stem (called saver sub) or be used to deliver outgoing air to the bit face just above the bit (called bit sub).

The length of crossover subs is generally measured from shoulder to shoulder. Typical lengths range from 6" - 28" long going up in increments of 2 inches with AISI 4145H, AISI 4145H Mod, AISI 4340, AISI 4140-4142 and Non-magnetic material. All connections are phosphate-coated or copper plated to improve resistance to corrosion. Crossover subs come in three basic types: A Pin (male) * Box (female); B Pin (male) * Pin (male); C Box (female) * Box (female)

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.

 

Detailed Photos

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Company Profile

Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Following the principle of "quality first, science and technology innovated, people oriented", every Lake Petro person is sparing no effort to provide the customers with best products and services. Through efforts of Lake Petro staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.

 

Certifications

 

FAQ

How to order?

Please send us your inquiry with detail item description or with Model number.

If there is no packing demand we take it as our regular exported standard packing.

We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

You send us your detail requirement, we provide quotation to you.

Can I expect a quality products?

All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.

 

The information you may like to know before Payment:

 

1. Methods of Payment:

T/T (Telegraphic Transfer) or L/C at sight

 

2. Shipping way

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.

 

3. Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.