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API 7-2 Cross-Over Sub

  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
  • API 7-2 Cross-Over Sub
Model No.︰-
Brand Name︰-
Country of Origin︰China
Unit Price︰-
Minimum Order︰-
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Product Description

Cross-Over Sub
Cross-over sub serves to conversion and connection . It is the basic component in downhole work.It is divided into drill string crossover and tubing Crossover.Drill string Cross-over is divided into type A, type B and type C.

Technical Parameter of Drill String Cross-Over Joint

Sort
Description
Upper Connection Part
Lower Connection Part
Type
1
Kelly cross-over sub
Kelly
Drill pipe
A or B
2
Drill pipe cross-over sub
Drill pipe
Drill pipe
A or B
3
Interim cross-over sub
Drill pipe
Drill collar
A or B
4
Drill collar cross-over 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
C
Drill pipe
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.


Drill Pipe Cross-Over Sub
OD DF Id Drill Pipe Joint Code
NB Grade mm mm mm
60.3 E 85.7 83 44.5 NC26-E(2 3/8IF-E)
X NC26-X(2 3/8IF-X)
G NC26-G(2 3/8IF-G)
73 E 104.8 100.4 54 NC31-E(2 7/8IF-E)
X 50.8 NC31-X(2 7/8IF-X)
G NC31-G(2 7/8IF-G)
S 111.1 41.3 NC31-S(2 7/8IF-S)
88.9 E 120.7 116.3 68.3 NC38-E(3 1/2IF-E)
X 127 65.1 NC38-X(3 1/2IF-X)
G 61.9 NC38-G(3 1/2IF-G)
S 54 NC38-S(3 1/2IF-S)
E 65.1 NC38-E(3 1/2IF-E)
X 61.9 NC38-X(3 1/2IF-X)
G 54 NC38-G(3 1/2IF-G)
101.6 E 152.4 145 82.6 NC46-E(4IF-E)
X NC46-X(4IF-X)
G NC46-G(4IF+G)
S 76.2 NC46-S(4IF-S)
114.3 E 168.3 154 95.3 NC50-E(4 1/2IF-E)
X NC50-X(4 1/2IF-X)
G NC50-G(4 1/2IF-G)
S 88.9 NC50-S(4 1/2IF-S)
E 92.1 NC50-E(4 1/2IF-E)
X 88.9 NC50-X(4 1/2IF-X)
G NC50-G(4 1/2IF-G)
S 76.2 NC50-S(4 1/2IF-S)
127 E 168.3 154 95.3 NC50-E(4 1/2IF-E
X 88.9 NC50-X(4 1/2IF-X)
G 82.6 NC50-G(4 1/2IF-G)
S 69.9 NC50-S(4 1/2IF-S)
E 88.9 NC50-E(4 1/2IF-E)
X 76.2 NC50-X(4 1/2IF-X)
G 69.9 NC50-G(4 1/2IF-G)
139.7 E 177.8   170.7   95.3 5 1/2FH-E
X 51/2FH-X
G 51/2FH-G
S 184.2 88.9 51/2FH-S
E   177.8 51/2FH-E
X 51/2FH-X
G 184.2 51/2FH-G
S 82.6 51/2FH-S
Specifications︰According to API Specification, Drill String Cross-over Sub is made from AISI4145H modified chromium molybdenum alloy steel that are heat-treated according to drill collar specifications to ensure a hardness range of 285-341. Brinell. Charpy “V” notch minimum impact strength of 40 ft-lb at 700F are guaranteed one inch below the surface. it acts as connecting and change-over, deliver torque function in different types of drill tools. All connections are phosphated or coppered coating to minimize galling on initial make-up and drilling operation.
We supply three types of subs: Straight OD Subs, Reduced Section Subs and Left Hand Subs. All threads are cold rolled, copperized, and phosphated.
Standard Met︰API-7-2 Threading and Gauging of Rotary Shouldered Thread Connections
API-7-1 Rotary Drill Stem Elements
API-17D Subsea Wellhead and Christmas Tree Equipment
API-6A Wellhead and Christmas Tree Equipment
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