China Inside Blowout Control Tools

Kelly Valve/Cock
Kelly valve also named Kelly cock or drill pipe safety valve. It is a hand control valve in drill string circulating system and it is one of the effective tools to prevent blowout. Kelly valve is divided into Upper Kelly Valve and Lower Kelly Valve. Upper Kelly Valve is connected between swivel sub and Kelly. Lower Kelly valve is connected between lower end of Kelly and top of drill pipe or lower end of Kelly save sub. Rotating the wrench of full opening safety valve 90° to realize on and off. In the drilling operation, in order to avoid malignant accidents, Kelly valves should be connected to both end of Kelly to prevent the loss of drilling fluid and blowout.
Specification

ModelOD mm(inch)Conn.ID mm(inch)Working Pressure (MPa)XS8686(3 3/8)NC2630(1 3/16)35,70XS111111(4 3/8)NC3140(1 9/16)35,70,105XS121121(4 3/4)NC3844.5(1 3/4)35,70,105XS146146(5 3/4)4 1/2REG LH44.5(1 3/4)35,70,105XS168168(6 5/8)NC5071.4(2 13/16)35,70,105XS178178(7)5 1/2FH71.4(2 13/16)35,70,105XS197197(7 3/4)6 5/8REG LH76.2(3)35,70,105

Arrow Type Check Valve
Arrow type check valve (drill check valve) is a kind of important inside blowout tool, usually used in the oil and gas drilling and workover. It works with the drilling tool into the well, in the process of drilling and workover in case of overflow, kick, or positive cycle to stop, the arrow type check valve will shut down rapidly under the action of reverse circulation pressure inside drill tools and spring force, cutting the channel within drilling tools, thus play a blowout purpose within drill tools.
Specification

ModelOD mm(inch)ID mm(inch)Working Pressure (MPa)Conn.FJ7979(3 1/8)25(1)35,70,1052 7/8HT PACFJ8686(3 3/8)25(1)NC26FJ111111(4 3/8)41.3(1 5/8)NC31FJ121120.7(4 3/4)54(2 1/8)NC38FJ127127(5)54(2 1/8)NC38FJ159159(6 1/4)70(2 3/4)NC46FJ165165(6 1/2)70(2 3/4)NC50FJ178178(7)70(2 3/4)5 1/2FHFJ203203(8)71.4(2 13/16)6 5/8REGFJ229229(9)76.2(3)7 5/8REG

Full Opening Safety Valve
Full opening safety valve is a hand control valve in drill string circulating system, and it is one of the effective tools to prevent blowout. In the drilling operation, in order to avoid malignant accidents, full opening safety valve shall be connected between drill pipes in drilling process. The special wrench of full opening safety valve may rotate 90 °according instruction to switch on and off. In well repair operation, whether need to lift the drill pipe or not, it is best to install opening safety valve as prevention.
Specification

ModelOD
mm(inch)ID
mm(inch)Conn.Working Pressure (MPa)QK7979(3 1/8)20(4/5)2 7/8HT PAC35,70QK8989(3 1/2)30(1 3/16)NC26QK111111(4 3/8)40(1 7/16)NC31QK121121(4 3/4)50(2)NC38QK127127(5)QK133133(5 1/4)60(2 5/16)NC40QK159159(6 1/4)71(2 13/16)NC46QK165165(6 1/2)71.4(2 13/16)NC50QK168168(6 5/8)QK190-1190(7 1/2)76.2(3)5 1/2FHQK190-2190(7 1/2)82(3 1/4)NC50

Tubing Valve
Tubing valve also named tubing cock, and drilling fluid can flow through the vale without pressure drop. This kind of valve is used as the tubing valves and install above tubing to control blowout or to prevent drilling fluid loss when unload the tubing.
Specification

ModelOD
inch(mm)ID
mm(inch)Upper Conn.Lower Conn.Working
Pressure
(MPa)XSY105105(4 1/8)40(1 9/16)2 7/8UP TBG2 7/8UP TBG35,70XSY127127(5)50(2)3 1/2UP TBG3 1/2UP TBGXSY130130(5 1/8)50(2)3 1/2UP TBG3 1/2UP TBGXSY130-2130(5 1/8)50(2)2NPT2 7/8UP TBGXSY130-3130(5 1/8)50(2)2NPT3 1/2UP TBGXSY130-4130(5 1/8)50(2)2 7/8UP TBG2 7/8UP TBGXSY130-5130(5 1/8)50(2)3 1/2UP TBG3 1/2TBGXSY140140(5 1/2)50(2)4 1/2UP TBG4 1/2UP TBGXSY130-6130(5 1/8)50(2)2-6023 1/2UP TBGXSY130-7130(5 1/8)40(1 9/16)2-15022 7/8UP TBG

Retrievable Drop-in Check Valve
Retrievable drop-in check valve is a drill string inside BOP valve. It has a landing sub and connected to the right position of drill string, then put into the well, to help the check valve assembly into place. Retrievable drop-in check valve is one kind of one way check valve to prevent back flow when well kick. It allows fluid down to return well.This valve can control pressure in the drilling process and improve the well control obviously. As long as drop in, it can be into place in the land sub automatically, easy operate, so that achieve the purpose of the blowout control. In addition, compared with other previous drop- in check valve, the disassembly of this check valve can save a lot of manpower and material resources.
Specification

ModelCheck
Valve Assy.OD mm(inch)Landing SubConn.Working
Pressure
(MPa)OAL
mm(inch)OD mm(inch)ID mm(inch)HFT12160.5(2 19/50)121(4 3/4)50.8(2)NC3835, 70776(30 11/20)HFT127127(5)HFT16573(2 7/8)165(6 1/2)71.4
(2 13/16)NC5035, 70804(31 21/32)

Drop-in Check Valve
Drop-in check valve is a drill string inside BOP valve. It also can be used for block off drill pipe on all kinds of offshore drilling floating equipment. only after block off borehole and the annular space outside the drill string, that can be complete tasks to prevent blowout accident, as long as block off high pressure flow in the bore of drilling string, the well blowout is easy to control which occurred between borehole and the annular space outside the drill string. It has a landing sub, which connect to the need position of drill string then put into the well, help check valve into place, drop-in check valve is a kind of single flow check valve, stored on the platform, when found blowout omen, drop it into drill pipe bore, just oncetimedrop in can be into place on the land sub automatically, when high pressure flow of downhole, the check valve could cut off high pressure flow of upward jet in the drill string.
Specification

ModelValve Assy.
OD mm(inch)Landing SubConn.Working
Pressure MPaOAL
mm(inch)OD mm(inch)ID mm(inch)FT10539(1 17/32)104.8(4 1/8)40.5(1 5/8)NC3135,70572(22 13/25)FT12151(2 1/64)120.7(4 3/4)53(2 3/32)NC38794(31 1/4)FT12752(2 1/16)127(5)54(2 1/8)NC38794(31 1/4)FT15968(2 11/16)159(61/4)70(2 3/4)NC46867(34 1/8)FT16269(2 23/32)162(6 3/8)71(2 13/16)NC50872(34 5/16)FT16567(2 41/64)165(61/2)69(2 23/32)NC50872(34 5/16)FT16868(2 11/16)168(6 5/8)70(2 3/4)NC50867(34 1/8)FT19078(3 5/64)190(7 1/2)80(3 9/64)5 1/2FH906(35 11/16)FT20967(2 41/64)209(8 1/4)69(2 23/32)6 5/8REG891(35 1/16)FT241114(41/2)241.3(9 1/2)116(4 9/16)7 5/8REG975(38 3/8)

FPJ Inside BOP Valve
FPJ Inside BOP Valve is a large pressure drop check valve. Valve seal is the arrow type valve seal, the arrow type check valve will shut down rapidly under the action of reverse circulation pressure inside of drill tools and spring force, cut off the channel within drilling tools, thus arrieved prevent a blowout purpose within drill tools. It can be reserved on the platform, or release its top open device, then install it between drill pipe and drill bit, to prevent the high pressure oil and gas spewing from the drilling tools. A special release tool makes the valve in a normally open state, could allow backflow throudh.This release tool is per-installer in the float valve and the whole assembly kept ready on the platform for quick installation ai the first sings of backflow when drill pipe is pulled out of the well.
Specification:

ModelOD mm(inch)ID mm(inch)Conn.Working Pressure (MPa)FPJ8685.7(3 3/8)31.8(1 1/4)NC2635,70FPJ105104.8(4 1/8)41.3(1 5/8)NC31FPJ127127(5)54(2 1/8)NC38FPJ165165(6 1/2)70(2 3/4)NC50FPJ178178(7)70(2 3/4)5 1/2FHFPJ203203(8)71.4(2 13/16)6 5/8REG

Inside BOP Valve
Inside BOP Valve is a large pressure drop check valve, the tapered plug of valve, reduce the cutting action of the mud on the seat to ensure the closed position. Inside BOP Valve connected with drill string can protect swivel, hose and stand pipe. It can also be used It is aslo a releasing tool to make the valve opening usually,and allows the backflow through.Thisoptional release tool is installed in the float valve and the whole assembly is kept ready on the platform for quick installation at the frist sings of backflow when drill pipe is pulled out of the well.
Specification:

ModelOD mm(inch)ID mm(inch)Conn.Working Pressure (MPa)FP8685.7(3 3/8)31.8(1 1/4)NC26 FP105104.8(4 1/8)44.5(1 3/4)NC31 FP127127(5)45(1 25/32)NC38 FP165165(6 1/2)57.2(2 1/4)NC5035,70FP178178(7)57.2(2 1/4)5 1/2FH FP203203(8)71.4(2 13/16)6 5/8REG FP241241(9 1/2)71.4(2 13/16)7 5/8REG

Plate Check Valve
Plate check valve is an important blowout control tool. Compared with other structure back pressure valve,it has high strength,large flow area, high temperature resistant to high pressure,drilling fluid erosion resistance and easy maintenance,etc.
Specification:

ModelOD mm(inch)ID mm(inch)Conn.Working Pressure (MPa)FD121121(4 3/4)56(2 3/16)NC38 FD159159(6 1/4)65(2 9/16)NC4635,70FD165165(6 1/2)79.4(3 1/8)NC50FD178178(7)88.9(3 1/2)5 1/2FH

Ball Check Valve
Ball check valve is a wellhead inside blowout tool, in order to realize safety control in drilling operation.lt can effectively solve the overflow, kick occur in trip process. Put it into the well with drill stem and control the mud back flow pressure automatically.
Specification

ModelOD mm(inch)ID mm(inch)Conn.Working Pressure (MPa)FQ165165(6 1/2)71(2 13/16)NC50 FQ127127 (5)57.2(2 1/4)NC3835, 70FQ120120.7(4 3/4)57.2(2 1/4)NC38FQ105104.8(4 1/8)50.8(2)NC31

How to order:
Sizes, working pressure, connections;Please specify special requirements.
Float Valve
Float valve is one of necessary tool for oil drilling,it consists of float valve sub and float valve, The main function are to prevent drill cuttings come into mud when connecting each joint and the bit bore block caused by back flow of silt.When the well blowout or kick,the valve cover of float valve turn off the bore automatically# will prevent well blowout accident.The working pressure of float valve is supposed to be 5000psi or 10000psi.
Float Valve sub Specification:

ModelOD mm(inch)ID mm(inch)Conn.Float Valve TypeFZF8382.6(3 1/4)31.8(1 1/4)NC23 Bx2 3/8REG B1RFZF105104.8(4 1/8)31.8(1 1/4)NC31 Bx2 7/8REG B1F-2RFZF127127(5)50.8(2)3 1/2REG BxNC38 B2F-3RFZF178178(7)71.4(2 13/16)4 1/2REG BxNC50 B4RFZF165165(6 1/2)71.4(2 13/16)NC50(BxP)5RFZF203203(8)71.4(2 13/16)6 5/8REG Bx6 5/8REG B5F-6RFZF229FZF241229(9)/241(9 1/2)76.2(3)7 5/8REG Bx7 5/8REG B5F-6R

Float Valve Specification:

ModelOD
mm(inch)OAL
mm(inch)ID
mm(inch)Box Conn.Other Conn.Conn.Bore Depth mm(inch)Conn.Bore Depth mm(inch)1R42.1(1 21/32)149.2(5 7/8)42.9(1 11/16)2 3/8REG231.8(9 1/8)NC23231.8(9 1/8)1F-2R48.4(1 29/32)158.8(6 1/4)49.21(1 15/16)2 7/8REG254(10)NC26241.3(9 1/2)2F-3R61.1(2 13/32)165.1(6 1/2)61.9(2 7/16)3 1/2REG266.7(10 1/2)NC31260.35(10 1/4)3F71.4(2 13/16)254(10)72.2(2 27/32) 3 1/2FH355.6(14)3 1/2F79.4(3 1/8)254(10)80.2(3 5/32) NC38362(14 1/4)4R88.1(3 15/32)211.1(8 5/16)88.9(3 1/2)4 1/2REG325.4(12 13/16)NC44331.8(13 1/16)4F92.8(3 21/32)304.8(12)93.7(3 11/16) NC46425.4(16 3/4)5R98.4(3 7/8)247.6(9 3/4)99.2(3 29/32)5 1/2REG374.6(14 3/4)NC50368.3(14 1/2)5F-6R121.4(4 25/32)298.4(11 3/4)122.2(4 13/16)7 5/8REG438.2(17 1/4)5 1/2FH431.8(17)