Drill pipes tool joint/drilling crossover sub

Overview

Quick Details

Place of Origin:    Hebei, China

Brand Name:     longyue, Longyue

Type:       Bit Breaker, Core Drill Bit, bit breaker

Machine Type:       Drilling Tool, Drilling Tool

Material:       Iron, High Carbon Steel, Iron

Processing Type:      Forging

Use:      Well Drilling

Place of Origin: Hebei, China (Mainland):       Place of Origin: Hebei, China (Mainland)

Model Number:      12 1/4"

MQO:       1 pc

Certification:        API

Supply Ability

Supply Ability

300 Piece/Pieces per Month

Packaging & Delivery

Packaging Details      wooden caess or as customer's request

Port           Tianjin Seaport or Beijing Airport

Welcome

 

Company Information

 

 

 

Hejian Longyue Drill Bit Manufacturer Co.,Ltd

is a manufacturer of Drill Bit with well-equpiied testing facilities andstrong technical force.With a wide range, good quality,reasonadle price and prompt delivery,our products are extensively used in oil filed,wrll Drilling,No Dig filed and other industries.our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and from all walks of life to contact us for future business relationships andmutual success!

 

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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)

 

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.

 

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