Geological Alloy Steel 3.5 Inch Crossover Sub Drilling API 5CT 5B
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Crossover Sub 3-1/2in Connecting Of Uppper Drilling Tool Description : Cross-over sub acts for conversion and connection of drill stem component in petroleum,natural gas and geology drilling work. It is used mainly for connecting of upper drill tools and ......
Suzhou Energy Tool Co., Ltd.
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Horizontal Directional Crossover Sub Drilling JS Saver Sub Drilling
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...increments of 2 inches with AISI 4145H, AISI 4145H Mod, AISI 4340, AISI 4140-4142 and Non-magnetic material. All connections are phosphate-coated or copper plated to improve resistance to corrosion. Crossover subs come in three basic types: A Pin (male)...
Cang Zhou Creator Drill Equipment Scinence And Technology Co.,LTD
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Drill sub Precision Underground Mining Tricone Drill Bit 140mm - 225mm Length
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... operations. Also it can be used to protect other tooling in drill stem (called saver sub) or be used to deliver outgoing air to the bit face just above the bit (called bit sub). The length of crossover subs is generally measured from shoulder to shoulder....
KSQ Technologies (Beijing) Co. Ltd
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Heavy Weight Rock 5 7/8 Inch Mining Drill Rod
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.... 3. Strick quality control. Rotary Subs: Roschen rotary subs include: Straight OD subs Reduced section OD subs Crossover subs Bit Subs Saver Subs Side Entry Subs Pump In Subs The rotary subs are available in standard sizes specified in API and in a...
ROSCHEN GROUP
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API Top Drive Parts Saver Sub For Oilfield TDS 11SA CANRIG Top Drive
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...er the special heat treatment process to achieve the desired hardness and strength and impact resistance. API Specification Top Drive Saver Sub For Oilfield Specification Item O.D. I.D. OAL Connection (mm/inch) (mm/inch) (mm/inch) API 1 187(7-23/64) 44.5(1...
Topland Oilfield Supplies Ltd.
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