The Cross-Over Sub

Product Features:

The Cross-Over Sub

Business Terms:

Port: CHINA

Minimum Order Quantity: 1 Set/Sets

Payment Terms: L/C,T/T

Contact Supplier

Specifications and Product Details:

Cross-over sub acts for conversion and connection of drill stem component in petroleum ,natural gas and geology drilling work.It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations.

The cross over sub in 4 types of main structure.........

Sort	Description	Upper Connecting Part	Lower Connecting Part	Type
1	Kell cross-over sub	Kelly	Drill pipe sub
2	Drillpipe cross-over sub	Drill pipe sub	Drill pipe sub	A or B
3	Interim cross-over sub	Drill pipe sub	Drill collar	A or B
4	Drillcollar crossOver sub	Drill collar	Drill collar	A or B
5	Drill bit cross Over sub	Drill collar	Drill bit	A or B
6	Swivel Cross over sub	Swivel lower sub	Kelly	C
7	Fishing cross over sub	Kelly	Drill pipe sub	C
7	Fishing cross over sub	Drill pipe sub	Fishing tools	C

Type A stand for same diameter :one crossover sub has one size (D)on O.D.,code A.
Type B stands for reduce type:one crossover sub has two sizes (D1,D2) on O.D.,code B.
Type C is left hand thread type:the connection thread is left hand type,code C.
Lifting short sub type: cross over sub has connection on one end used for lifting of drill tool(without structure drawing).....