Made of low carbon steel suitable for most applications
Parts are interchangeable with Baker style equipment
Provide added blowout protection at the bottom of the drill
Prevent flow-back when adding joints and bit plugging while making connections
This Drill Pipe Float Valve is normally installed in a standard bore-back of the bit sub, to provide fluid flow control at the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections.
Features and advantages:
1. excellent comprehensive mechanical properties.
2. wear resistant.
3. high fatigue strength and long fatigue life.
4. good flushing effect to ensure high drilling rate.
5. widely application and accurate size.
6. origin of material: our materials are come from bao steel which is the best steel factory in China.
API Standard cross-over sub
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 lower drill tools during drilling operations
|sort||name||top connection||bottom connection||type|
|1||Kelley saver sub||kelly||drill pipe||A or B|
|2||Tool joint||drill pipe||drill pipe||A or B|
|3||Crossover sub||drill pipe||drill collar||A or B|
|4||Dril colar sub||drill collar||drill collar||A or B|
|5||Bit sub||drill collar||bit||A or B|
|6||Swivel sub||swivel bottom sub||kelly||C|
|7||Junk sub||kelly||drill pipe||C|
|drill pipe||fishing tool||C|
Contact me: Yilia
Sitio web: http://superiorbit.com/