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The Cross-Over Sub The Cross-Over Sub

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product description

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.

 

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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

 

 

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).

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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