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Zhenjiang Boral Machinery and Equipment Co., Ltd.
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Product Description SUBSCrossover SubCrossover 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 JointDrill 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 SubCirculating 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 requirementsWear SubIn 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:ModelOD mm(inch)Conn.ID mm(inch)Casing Size (inch)FMJ133A133(5 1/4)NC3857.2(2 1/4)7FMJ156A156(6 9/64)NC3861.9(2 7/16)7FMJ178A178(7)NC5071.4(2 13/16)9 5/8FMJ191A191(7 33/64)NC5071.4(2 13/16)9 5/8FMJ197A197(7 3/4)NC5070(2 3/4)9 5/8Non-rotating structure with rubber:ModelOD mm(inch)Conn.ID mm(inch)Casing Size (inch)FMJ148B148(5 53/64)NC3150.8(2)7 5/8FMJ148B-2148(5 53/64)NC3857.2(2 1/4)7 5/8FMJ200B200(7 7/8)NC5071.4(2 13/16)9 5/8Latch structure with rubber:ModelOD mm(inch)Conn.ID mm(inch)Casing Size (inch)FMJ118C118(4 21/32)NC3138.1(1 1/2)6 5/8FMJ133C133.4(5 1/4)NC3850.8(2)7FMJ146C146(5 3/4)NC3138.1(1 1/2)7 5/8FMJ152C152(6)NC3850.8(2)7 3/4FMJ178C178(7)NC5071.4(2 13/16)8 5/8FMJ184C184(7 1/4)NC4657.2(2 1/4)8 5/8FMJ197C197(7 3/4)5 1/2FH71.4(2 13/16)8 5/8Non-rotating structure with low alloy steel (or hard facing with tungsten carbide):_____________________________________ ModelOD mm(inch)Conn.ID mm(inch)Casing Size (inch)FMJ148D148(5 53/64)NC3850.8(2)7 5/8FMJ197D197(7 3/4)NC5057.2(2 1/4)9 5/8FMJ200D200(7 7/8)NC5057.2(2 1/4)9 5/8FMJ210D210(81/4)NC5057.2(2 1/4)10 3/4FMJ240D240(9 29/64)NC5057.2(2 1/4)13 3/8Oriented 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:ModelOD mm(inch)ID mm(inch)OAL mm(inch)Conn.JTD105104.8(4 1/8)31.8(1 1/4)600(20 1/16)NC31JTD121120.7(4 3/4)70(2 3/4)600(20 1/16)NC38JTD165165(6 1/2)71.4(2 13/16)610(24)NC50JTD197197(7 3/4)71.4(2 13/16)610(24)6 5/8REGJTD203203.2(8)71.4(2 13/16)610(24)6 5/8REGOriented 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:ModelOD mm(inch)ID mm(inch)Bent Angle 0Conn.JTDW197197(7 3/4)71.4(2 13/16)1° ,1.5.,2.,2.5.6 5/8REGJTDW203203.2(8)71.4(2 13/16)1° ,1.5.,2.,2.5.6 5/8REGJTDW165165(6 1/2)71.4(2 13/16)1.,1.5.,2.,2.5.NC50JTDW152152(5 63/64)71.4(2 13/16)1.,1.5.,2.NC46JTDW120120.7(4 3/4)50.8(2)1.,1.5.,2.NC38JTDW105104.8(4 1/8)32(1 1/4)1.,1.5.,2.NC31Multi-cycle Circulating SubsThe 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:The Multi-cycle circulating sub is the perfect tool for use in high angle and horizontal wells.According to the standard, all tools have two large circulating ports which greatly reduce the risk of plugging.The Multi-cycle circulating sub is the only tool that permits full TFA reverse circulation.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.The Multi-cycle circulating sub can be opened in a fixed position when it has run into the well bore.The Multi-cycle circulating sub permit open and close at least six times, this number can be increased on request.Our MCCS is widely use in Middle-East and Russia.Specification:ModelOD mm(inch)ID mm(inch)Conn.OAL mm(inch)MCCS121121(4 3/4)45(1 3/4)NC382705(106 1/2)MCCS165165(6 1/2)63.5(2 1/2)NC503445(135 5/8)MCCS178178(7)63.5(2 1/2)NC503445(135 5/8)High Speed Bypass ValveHigh 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:ModelOD mm(inch)ID mm(inch)Upper Conn.Lower Conn.OAL mm(inch)TPF121121(4 3/4)25.4(1)NC383 1/2REG1270(50)TPF159159(6 1/4)38.1(1 1/2)NC504 1/2REG1270(50)
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