• API Standard：API-5CT
• Transport Package：Standard Export Case
• Trademark：NSJ
• Origin：China
• Production Capacity：10000 Pieces Per Year

Basic Info.

API Standard API-5CT Transport Package Standard Export Case Trademark NSJ Origin China Production Capacity 10000 Pieces Per Year

Product Description

SUBS
Crossover Sub
Crossover sub is mainly used in oil, gas and geology drilling process to connect with other drill stem parts. It is connected of upper drilling tools and lower drilling tools. It has well structure and well property. Because of the different connecting components, there are different requirments to crossover subs. It has "A","B" and "C" type.
Specification:AII sizes.
How to order:
Sizes & connections;
Please specify special requirements.
Tool Joint
Drill pipe is one of important tools in drilling process. The tool joints are the main components for producing the drill pipe. Weld the tool joints on two sides of drill pipe body by friction welding, the drill pipe are finished producing.
Specification:AII sizes.
How to order:
Sizes & connections;
Please specify special requirements.
Circulating Sub
Circulating sub is installed in the top of drilling stem. The upper thread is connected with circulating system of casing, tubing, and union thread to circulate the drilling fluid. It divided into casing circulating sub, tubing circulating sub, union circulating sub and tee sub.
How to order:
Sizes & connections; Please specify special requirements
Wear Sub
In rotating drilling process, the rotating power of drill bit is from rotary rig platform or top-drive equipment through the drill stem. In the process of directional,dirlling because of the friction between drill stem and well wall or drill stem and casing, it is difficult to transfer the rotating power, especially in horizontal well. Because of the loss of torque, it will effect the rig efficiency and reduce the rig drilling power. The friction between drill stem and well wall or drill stem and casing will reduce the life of drill stem and casing, also the well wall will become irregularity. Because of the loss of passing torque, it should increase the torque load of drill stem in order to keep the drilling torque on bit. So it will reduce the drill stem's safety factor. All these will effect the safety, quality and rapid drilling.
Wear sub can valid resolve the above mentioned problems in the process of oil and gas drilling. It can reduce the drilling torque and friction between drill stem and casing by rotating drilling. So it can protect the casing and drill pipe.

Specification: Integral structure with rubber:

Model OD mm(inch) Conn. ID mm(inch) Casing Size (inch) FMJ133A 133(5 1/4) NC38 57.2(2 1/4) 7 FMJ156A 156(6 9/64) NC38 61.9(2 7/16) 7 FMJ178A 178(7) NC50 71.4(2 13/16) 9 5/8 FMJ191A 191(7 33/64) NC50 71.4(2 13/16) 9 5/8 FMJ197A 197(7 3/4) NC50 70(2 3/4) 9 5/8

Non-rotating structure with rubber:

Model OD mm(inch) Conn. ID mm(inch) Casing Size (inch) FMJ148B 148(5 53/64) NC31 50.8(2) 7 5/8 FMJ148B-2 148(5 53/64) NC38 57.2(2 1/4) 7 5/8 FMJ200B 200(7 7/8) NC50 71.4(2 13/16) 9 5/8

Latch structure with rubber:

Model OD mm(inch) Conn. ID mm(inch) Casing Size (inch) FMJ118C 118(4 21/32) NC31 38.1(1 1/2) 6 5/8 FMJ133C 133.4(5 1/4) NC38 50.8(2) 7 FMJ146C 146(5 3/4) NC31 38.1(1 1/2) 7 5/8 FMJ152C 152(6) NC38 50.8(2) 7 3/4 FMJ178C 178(7) NC50 71.4(2 13/16) 8 5/8 FMJ184C 184(7 1/4) NC46 57.2(2 1/4) 8 5/8 FMJ197C 197(7 3/4) 5 1/2FH 71.4(2 13/16) 8 5/8

Non-rotating structure with low alloy steel (or hard facing with tungsten carbide):_____________________________________

Model OD mm(inch) Conn. ID mm(inch) Casing Size (inch) FMJ148D 148(5 53/64) NC38 50.8(2) 7 5/8 FMJ197D 197(7 3/4) NC50 57.2(2 1/4) 9 5/8 FMJ200D 200(7 7/8) NC50 57.2(2 1/4) 9 5/8 FMJ210D 210(81/4) NC50 57.2(2 1/4) 10 3/4 FMJ240D 240(9 29/64) NC50 57.2(2 1/4) 13 3/8

Oriented SubThe oriented sub is used for the bent screw drilling tool getting into orientated. Put the gradiograph in the directional bond. It is used for kicking off in directional well, side tracking and vertical well. It has the advantages of simple structure, easy to use and low cost.
Specification:

Model	OD mm(inch)	ID mm(inch)	OAL mm(inch)	Conn.
JTD105	104.8(4 1/8)	31.8(1 1/4)	600(20 1/16)	NC31
JTD121	120.7(4 3/4)	70(2 3/4)	600(20 1/16)	NC38
JTD165	165(6 1/2)	71.4(2 13/16)	610(24)	NC50
JTD197	197(7 3/4)	71.4(2 13/16)	610(24)	6 5/8REG
JTD203	203.2(8)	71.4(2 13/16)	610(24)	6 5/8REG

Oriented Bent SubThe oriented bent sub is use for the straight screw drilling tool getting into orientated. The oriented bent sub is a tool use for deflecting of power drilling tools. Under the action of bent sub, a continuous lateral force imposed on the bit, and make the bit continuous side cutting wall of a well, drilled well body carve track. It has the advantages of simple structure, easy to use and low cost.
Specification:

Model	OD mm(inch)	ID mm(inch)	Bent Angle 0	Conn.
JTDW197	197(7 3/4)	71.4(2 13/16)	1° ,1.5.,2.,2.5.	6 5/8REG
JTDW203	203.2(8)	71.4(2 13/16)	1° ,1.5.,2.,2.5.	6 5/8REG
JTDW165	165(6 1/2)	71.4(2 13/16)	1.,1.5.,2.,2.5.	NC50
JTDW152	152(5 63/64)	71.4(2 13/16)	1.,1.5.,2.	NC46
JTDW120	120.7(4 3/4)	50.8(2)	1.,1.5.,2.	NC38
JTDW105	104.8(4 1/8)	32(1 1/4)	1.,1.5.,2.	NC31

Multi-cycle Circulating Subs
The Multi-cycle circulating sub is a sub to provide cycle and cooperate by dropping the ball several times. The operating steps of this tool is to achieve "shift" of product structure by dropping ball operation. It can generate a definite open or close position when dropping.
The drop ball cannot be pumped thru the tool during the cycle open function.
Advantage:

1. The Multi-cycle circulating sub is the perfect tool for use in high angle and horizontal wells.
2. According to the standard, all tools have two large circulating ports which greatly reduce the risk of plugging.
3. The Multi-cycle circulating sub is the only tool that permits full TFA reverse circulation.
4. Due to the unique design of the Multi-cycle tool, the flow ports are open before the activating ball reaches the catcher seat, in order to prevent the ball into the process being crushed.
5. The Multi-cycle circulating sub can be opened in a fixed position when it has run into the well bore.
6. The Multi-cycle circulating sub permit open and close at least six times, this number can be increased on request.
7. Our MCCS is widely use in Middle-East and Russia.

Specification:

Model	OD mm(inch)	ID mm(inch)	Conn.	OAL mm(inch)
MCCS121	121(4 3/4)	45(1 3/4)	NC38	2705(106 1/2)
MCCS165	165(6 1/2)	63.5(2 1/2)	NC50	3445(135 5/8)
MCCS178	178(7)	63.5(2 1/2)	NC50	3445(135 5/8)

High Speed Bypass Valve
High speed bypass valve provides the circulating cooperation by pressure difference to control the bypass orifice open and close. It is an ideal tool in large displacement well and horizontal well.
Specification:

Model	OD mm(inch)	ID mm(inch)	Upper Conn.	Lower Conn.	OAL mm(inch)
TPF121	121(4 3/4)	25.4(1)	NC38	3 1/2REG	1270(50)
TPF159	159(6 1/4)	38.1(1 1/2)	NC50	4 1/2REG	1270(50)