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DRILL PIPE USA™
TEL:
281-370-7447 – FAX: 281-576-1150
Houston, Texas
Email: pipe@drillpipe.us
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Drill Pipe USA distributes virtually all sizes of
drill pipe for all your drilling needs. In many of the more popular sizes, Drill
Pipe USA
is a stocking distributor of the most popular sizes and we also supply drill
collars and hevi-wate pipe. We import from the best
mills from Japan, China, USA and other major mills around the world. Please let
us quote your next drill string and we look forward to doing business with you.
Kelly
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DPU can produce customized square or hexagonal Kellys with regular range of 12.19 meters. The raw materials utilized is AISI 4145H
alloy steel. Kelly ends and drive sections, I.D.s
and connections are all machined according to SY/T
6509-2000 standards.

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Square Kelly Specification
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Norminal
Size
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Length
(ft)
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Top Upset Joint
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Bottom Upset
Joint
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Bore ID
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Drive Section
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Est. Weight
k.g.
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APIBOX
Thread Left
Hand
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Du
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Right Hand
Connections
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DL
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Across
Corners
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Across
Flats
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3-1/2
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40
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6 5/8REG
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7 3/4
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NC38(3 1/2IF)
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4 3/4
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2 1/4
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4.437
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3 1/2
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596
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4-1/4
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40
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6 5/8REG
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7 3/4
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NC46(41F)
NC50(4 1/2IF)
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6~6 3/8
6 1/8~6 3/8
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2 13/16
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5.500
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4 1/4
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820
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5-1/4
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40
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6 5/8REG
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7 3/4
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NC50
5 1/2FH
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7
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3 1/4
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6.750
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5 1/4
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1250
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6
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40
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6 5/8REG
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7 3/4
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6 5/8REG
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7 3/4
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3 1/2
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7.625
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6
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1665
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Hexagonal
Kelly Specification
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Norminal
Size
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Length
(ft)
|
Top Upset Joint
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Bottom Upset Joint
|
Bore ID
|
Drive Section
|
Est. Weight
k.g.
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APIBOX
Thread Left
Hand
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Du
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Right Hand
Connections
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DL
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Across
Corners
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Across
Flats
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3-1/2
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40
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6 5/8REG
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7 3/4
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NC31(2 7/8IF)
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4 1/8
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1 3/4
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3.937
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3 1/2
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580
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4-1/4
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40
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6 5/8REG
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7 3/4
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NC38(3 1/2IF)
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4 3/4
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2 1/4
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4.781
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4 1/4
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780
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5-1/4
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40
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6 5/8REG
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7 3/4
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NC46(4 IF)
NC50(4 1/2 IF)
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6~6
3/8
6 1/8~6 3/8
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3
3 1/4
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5.900
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5 1/4
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1147
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© 2006 - All Rights Reserved
Drill Pipe USA™ is a Trademark of Wesley
Holley RBI Industries LLC.