DEST008486MA - - Google Patents

Info

Publication number

DEST008486MA

DEST008486MA DEST008486MA DE ST008486M A DEST008486M A DE ST008486MA DE ST008486M A DEST008486M A DE ST008486MA

Authority

DE

Germany

Prior art keywords

coupling

pin

drill pipe

annular groove

diameter

Prior art date

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

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• 230000008878 coupling Effects 0.000 claims description 20
• 238000010168 coupling process Methods 0.000 claims description 20
• 238000005859 coupling reaction Methods 0.000 claims description 20
• 238000005553 drilling Methods 0.000 claims description 7
• 238000003466 welding Methods 0.000 claims description 3
• 238000004519 manufacturing process Methods 0.000 description 2
• VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 238000003801 milling Methods 0.000 description 1
• 230000008439 repair process Effects 0.000 description 1
• 239000002689 soil Substances 0.000 description 1