hexagonal kelly

API 7-1 Square and Hexagonal Kelly for Oilfield Drilling Product Introduction Kellys is the driving section of wohole drill stem. Kelly is available w...

Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment Kelly is the main driver of the whole drill string.It transmits torsional energy from th...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

API 7K Roller kelly bushing Product Description Roller kelly bushing is a necessary tool for drilling, by matching with rotary square to drive kelly p...

API 7K Square Drive and Pin Drive Roller Kelly Bushing, Heavy, Medium and Light Type Roller Kelly bushing is a necessary tool for drilling, by matchin...

LS Drilling Rig Rotary Table ZP375 API Spec. 7K Standard for oil&gas drilling rig Technical Features The pinion and the gear are made of alloy ste...

Accessories-Drill Rod Interlocking Kelly bar Interlocking Kelly bar is located at the upper end of the drill string. It can be divided into square and...

Red Track Mounted Drill Rig , Crawler Drill Machine XY-1A For Water Well XY-1A core drilling machine is a light type core drill rig at high speed with...

Diamond Core Drilling 150 Meters Depth XY-1A Hydraulic Borewell Drilling Rig Machine XY-1A Hydraulic Borewell Drilling Rig Machine Introduction With h...

API Spec 7-1 and SY5411 Standard Hexagonal Kelly for Oilfield Product Introduction Kelly is located in the top of the drill string, with square and he...

API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling Kelly is the drive part of whole drill string, it transmits the torsional e...

Oil and Gas Rotary Kelly Drill String Square or Hexagonal Type Product Overview Kelly is located in the top of the drill string, with square and hexag...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...

Each kelly shall be conduct 4145H full length heat treatment to ensure that hardness can reach 285-341HB at 1inch from OD; impact energy more than 54J...