Oilfield 4145H Top Drive OD 187mm Kelly Saver Sub
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...tem. Not only acting as crossover sub, but also protecting lower IBOP. Top drive saver sub can be divided into general top drive saver sub and low temperature top drive saver sub. Our company provides varied, complete series of subs and joints, they are:...
Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
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Alloy Steel Drilling Accessories API 7-1 Drill Pipe Crossover Sub
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...Sub Product Description Crossover sub is mainly used to connect upper and lower drill tools in different connectors in drilling 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). Crossover sub Description Upper Connection pat Lower Connection Part Type Kelly cross-over sub Kelly......
Cang Zhou Creator Drill Equipment Scinence And Technology Co.,LTD
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API Standard Kelly Cock Valve, upper and lower kelly valve
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... Kelly valve is connected between lower end of swivel and upper end of Kelly; the lower Kelly valve is connected between upper end of drill pipe and lower end of Kelly or connected between lower end of Kelly saver subs. The Kelly valve can be opened on or...
Dongying On-tech Equipment Co., Ltd
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API Kelly Valves 10000PSI, API IBOP Upper Kelly Valve, API IBOP Lower Kelly Cocks
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... end of Kelly; the lower Kelly valve is connected between upper end of drill pipe and lower end of Kelly or connected between lower end of Kelly saver subs. The Kelly valve can be opened on or closed off by only turning the special operating wrench at 90°...
Shaanxi Haige Machinery 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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