Short Drill Collar Type DZT
group nameDownhole Tools
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Min Order1 piece
modelDZT
payment methodL/C, Western Union, MoneyGram, T/T
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update timeTue, 09 Oct 2012 20:00:35 GMT
Paramtents
FUNCTION drilling tools
CERTIFICATE API 7-1
TYPE short drilling cillar
Packging & Delivery
Min Order1 piece
Briefing
Detailed
The short drill collar type DZT selects the special high strength alloy steel. It's properties meet the requirement of specification. The connection meets the the requirement of API specifications. It is mainly used for connecting special tools or constituting a certain number of drilling group.
Specification Series and Performance Parameters
Normal size specification Mm(in) | Connection API | Water hole Mm(in) | Length series M(ft) |
105 (4 1/8″) | NC31 | 50(2") | 1.5(4 9/10'), 2.5(8 1/5') 3(9 7/8'), 3.5(11 1/2'),
|
121 (4 3/4″) | NC35 | 50(2") | |
127 (5″) | NC38 | 57(2 1/4") | |
146 (53/4″) | 41/2FH | 57(2 1/4") |
|
159 (61/4″) | NC46 | 71(2 4/5" ) | |
165 (6 1/2″) | NC46 | 71(2 4/5") | |
178 (7″) | NC50 | 71(2 4/5") | |
203（8″） | NC56 | 71(2 4/5") | |
229（9″） | NC61 | 71(2 4/5") |
