API Oilfield Downhole Tools Drill Pipe Float Valve Sub Model G and Model F Drill Pipe Float Valve

Description

Stinger stab in sub dowhole tool float valve for oil field,Bit Sub Plunger Float Valve Flapper.

Model “FZF” Float Sub is a new-style drilling tool inside blowout prevent. During normal drilling, valve open, drilling fluid circulation clearly while down- hole happen to kick or blowout. The valve cap shut off in order to achieve blowout prevention. When tripping in or out, it preventing drilling fluid flowing from back and prevent mud entering into the drill string, realizing the function of preventing block. It is a special tool for preventing blowout and block in drilling operation.

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.

Float Valve:
Float Valve Sub is an important tool in petroleum exploration and drilling engineering. The float valve sub is connected at upper part of drill bit, the float valve assembly in sub is near the bit connecting thread and the float valve sub also can be necessary position of drill string. The main application is,when connect with single piece pipe, to prevent mud coming in, mud up returning and blocking hole. When blowout takes place,blowout in drill string will be avoided because nozzle is closed automatically by valve cap for float valve assembly .

Float valve subs are avaiable in two models:
VALVES MODEL “F” PLUNGER TYPE
VALVES MODEL “G” FLAPPER TYPE
Type
Dia. of Valve Assembly mm(inch)
Length Of Valve Assembly mm(inch)
Dia. Of Float Recess mm(inch)
Sub Box
Other Popular Connections
Connection API
Depth Of Recess mm(inch)
Connection API
Depth Of Recess mm(inch)
1R
42.1(1-21/32)
149.2(5-7/8)
42.9(1-11/16)
2-3/8Reg.
231.8(9-1/8)
NC23
231.8(9-1/8)
2F-3R
61.1(2-13/32)
165.1(6-1/2)
61.9(2-7/16)
3-1/2Reg.
266.7(10-1/2)
NC31
260.35(10-1/4)
3-1/2 F
79.4(3-1/8)
254(10)
80.2(3-5/32)
NC38
362.0(14-1/4)
4R
88.1(3-15/32)
211.1(8-5/16)
88.9(3-1/2)
4-1/2Reg.
325.4(12-13/16)
NC44
331.8(13-1/16)
5R
98.4(3-7/8)
247..7(9-3/4)
99.2(3-29/32)
5-1/2Reg.
374.7(14-3/4)
NC50
368.3(14-1/2)
5F-6R
121.4(4-25/32)
298.5(11-3/4)
122.2(4-13/16)
6-5/8Reg..
431(17)
5-1/2IF
431.8(17)

get a quote now!

Contact Us