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Product Details

“GAOFENG” has strict systems of scientific research and quality assurance

“GAOFENG” has strict systems of scientific research and quality assurance

Non-magnetic Drill Collars

Non-magnetic Drill CollarsNon-magnetic Drill Collars using self-developed low-carbon stainless steel as API specification and implementation of SY / T5144 standard, which can be cold thread rolling, machine special double shoulder screw thread and by other specifications.NMDC DIMENSIONDrill Collar ModelOD DID dOALL mmShoulder ChamferDF mmBending Strength RatiomminmminNC23-3179.43 1/831.81 1/4915076.22.57：1NC26-3588.93 1/238.11 1/2915082.92.42：1NC31-41104.84 1/850.829150 or 9450100.42.43：1NC35-47120.74 3/450.829150 or 9450114.72.58：1NC38-50127.0557.22 1/49150 or 9450121．02.38：1NC44-60152.4657.22 1/49150 or 9450144.52.49:1NC44-60152.4671.42 13/169150 or 9450144.52.84:1NC44-62158.86 1/457.22 1/49150 or 9450149.22.91:1NC46-62158.86 1/471.42 13/169150 or 9450150.02.63:1NC46-65165.16 1/257.22 1/49150 or 9450154.82.76:1NC46-65165.16 1/271.42 13/169150 or 9450154.83.05:1NC46-67171.46 3/457.22 1/49150 or 9450159.53.18:1NC50-67171.46 3/471.42 13/169150 or 9450159.52.37:1NC50-70177.8757.22 1/49150 or 9450164.72.54:1NC50-70177.8771.42 13/169150 or 9450164.72.73:1NC50-72184.27 1/471.42 13/169150 or 9450169.53.12:1NC56-77196.87 3/471.42 13/169150 or 9450185.32.70:1NC56-80203.2871.42 13/169150 or 9450190.13.02:16 5/8REG209.68 1/471.42 13/169150 or 9450195.72.93:1NC61-90228.6971.42 13/169150 or 9450212.73.17:17 5/8REG241.39 1/276.239150 or 9450223.82.81:1NC70-97247.69 3/476.239150 or 9450232.62.57:1NC70-100254.01076.239150 or 9450237.3281:18 5/8REG279.41176.239150 or 9450266.72.84:1 Tolerance for NMDC Major DimensionOD RANGEOD DID dOAL LShoulder ChamferDFmmin≤88.9≤3 1/2+1.2 0+1.6 0＋152.4±0.4＞88.9~114.3＞3 1/2~4 1/2+1.6 0＞114.3~139.7＞4 1/2~5 1/2+2.0 0＞139.7~165.1＞5 1/2~6 1/2+3.2 0＞165.1~215.9＞6 1/2~8 1/2+4.0 0＞215.9~241.3＞8 1/2~9 1/2+4.8 0＞241.3＞9 1/2+6.4 0 NMDC Mechanical PerformancesOD RANGEYIELD STRENGTH σ0.2 MPaTENSILE STRENGTH σb MPaELONGATION δ4 %mmin79.4~171.43 1/8~6 3/4≥758≥827≥18177.8~279.47~11≥689≥758≥20Magnetic Performance（Magnetic Field＝1×105/4πA/m）1.relative magnetic permeability Ur＜1.0102.magnetic field gradient：ΔB≤0.05μT

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Drilling Tools

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Detailed introduction

Non-magnetic Drill Collars using self-developed low-carbon stainless steel as API specification and implementation of SY / T5144 standard, which can be cold thread rolling, machine special double shoulder screw thread and by other specifications.

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NMDC DIMENSION

Drill Collar Model OD D ID d

OAL

L mm

Shoulder Chamfer

DF mm

 Bending Strength Ratio
mm in mm in
NC23-31 79.4 3 1/8 31.8 1 1/4 9150 76.2 2.57：1
NC26-35 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42：1
NC31-41 104.8 4 1/8 50.8 2 9150 or 9450 100.4 2.43：1
NC35-47 120.7 4 3/4 50.8 2 9150 or 9450 114.7 2.58：1
NC38-50 127.0 5 57.2 2 1/4 9150 or 9450 121．0 2.38：1
NC44-60 152.4 6 57.2 2 1/4 9150 or 9450 144.5 2.49:1
NC44-60 152.4 6 71.4 2 13/16 9150 or 9450 144.5 2.84:1
NC44-62 158.8 6 1/4 57.2 2 1/4 9150 or 9450 149.2 2.91:1
NC46-62 158.8 6 1/4 71.4 2 13/16 9150 or 9450 150.0 2.63:1
NC46-65 165.1 6 1/2 57.2 2 1/4 9150 or 9450 154.8 2.76:1
NC46-65 165.1 6 1/2 71.4 2 13/16 9150 or 9450 154.8 3.05:1
NC46-67 171.4 6 3/4 57.2 2 1/4 9150 or 9450 159.5 3.18:1
NC50-67 171.4 6 3/4 71.4 2 13/16 9150 or 9450 159.5 2.37:1
NC50-70 177.8 7 57.2 2 1/4 9150 or 9450 164.7 2.54:1
NC50-70 177.8 7 71.4 2 13/16 9150 or 9450 164.7 2.73:1
NC50-72 184.2 7 1/4 71.4 2 13/16 9150 or 9450 169.5 3.12:1
NC56-77 196.8 7 3/4 71.4 2 13/16 9150 or 9450 185.3 2.70:1
NC56-80 203.2 8 71.4 2 13/16 9150 or 9450 190.1 3.02:1
6 5/8REG 209.6 8 1/4 71.4 2 13/16 9150 or 9450 195.7 2.93:1
NC61-90 228.6 9 71.4 2 13/16 9150 or 9450 212.7 3.17:1
7 5/8REG 241.3 9 1/2 76.2 3 9150 or 9450 223.8 2.81:1
NC70-97 247.6 9 3/4 76.2 3 9150 or 9450 232.6 2.57:1
NC70-100 254.0 10 76.2 3 9150 or 9450 237.3 281:1
8 5/8REG 279.4 11 76.2 3 9150 or 9450 266.7 2.84:1

Tolerance for NMDC Major Dimension

OD RANGE OD D ID d OAL L

Shoulder Chamfer

DF
mm in
≤88.9 ≤3 1/2 +1.2 0 +1.6 0 ＋152.4 ±0.4
＞88.9~114.3 ＞3 1/2~4 1/2 +1.6 0
＞114.3~139.7 ＞4 1/2~5 1/2 +2.0 0
＞139.7~165.1 ＞5 1/2~6 1/2 +3.2 0
＞165.1~215.9 ＞6 1/2~8 1/2 +4.0 0
＞215.9~241.3 ＞8 1/2~9 1/2 +4.8 0
＞241.3 ＞9 1/2 +6.4 0

NMDC Mechanical Performances

OD RANGE YIELD STRENGTH σ0.2 MPa TENSILE STRENGTH σb MPa ELONGATION δ4 %
mm in
79.4~171.4 3 1/8~6 3/4 ≥758 ≥827 ≥18
177.8~279.4 7~11 ≥689 ≥758 ≥20

Magnetic Performance（Magnetic Field＝1×105/4πA/m）

1.relative magnetic permeability Ur＜1.010

2.magnetic field gradient：ΔB≤0.05μT

Key words:

Gaofeng petroleum machinery and equipment, oil and gas drilling and production downhole tools

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Bucking Unit Type YXD20

The Bucking Unit Type YXD20 is a hydraulic make-up and break-out machine. The unit allows the operator to apply a torque to a connection without damaging the surface of the tool. It is designed for fast, easy servicing of drilling tools in either workshop or drill site locations. SpecificationsModelRating power kW(ft.lb/s)Max. Working Pressure of Hydraulic SystemMPa(bar)Rotation Rate(r/min)Tank Volume(L)Working MediumYXD207.5(5530)31.5(315)144080L-HM32anti-wear hydraulic oilThe Caliber of Service Toolmm(in)Strokemm(in)Working Pressure of Pneumatic SystemMPa(bar)Unscrew TorquekN·m(tf·m)Make-up TorquekN·m(tf·m)Physical Dimensionmm(in) (L×W×H)Φ80～Φ304(3 1/8～12)1000(39 3/8)0.5～1(5～10)250(25)190(19)5400×1760×1770( 213×69×70 )

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Full-hydraulic Mounting Rack Type YZJ200

This is controlled by hydraulic pressure, Model “YZJ 2000” Mounting Rack can not only make-up and screw off a large torque, but also rotate the thread quickly without the changed tooth block for five synchronous held. It has many  advantages of complete function, high automaticity, larger application and safety and so on. Moreover, it is suitable to serve the down-hole tools for oil filed pipe shop and petroleum machinery manufacturer. SpecificationsModelRating power kW(ft.lb/s)Max. Working Pressure of Hydraulic SystemMPa(bar)Rotation Rate(r/min)Tank Volume(L)Working MediumYZJ20011(7820)28(280)150080L-HM32anti-wear hydraulic oilThe Caliber of Service Toolmm(in)The Held Length Scope of Calibermm(in)Make-up TorquekN·m(tf·m)Unscrew TorquekN·m(tf·m)Physical Dimensionmm(in) (L×W×H)The Stand Held Center-heightmm(in)Φ80～Φ380(3 1/8～15)≥1000( ≥39 )200(20)200(20)12540×1460×1850( 494×57×73 )1140(44 7/8)

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Hydraulic Test Stand Models S120, 1150, and 2200

The Hydraulic Jar Tester is self contained unit that are designed to test the tensile property and pressure property of drilling jars, fishing jars and other down-hole tools.

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Simple Assembly Stand Type JZP

It is a simple semi-mechanized equipment, being suitable for assembling and disassembling various shafts and casing parts of the fishing and jarring tools. SpecificationsModelStroke of the Working Hydraulic Cylindr mm(in)Stroke of the Hand Hydraulic Cylindr mm(in)The Caliber of Service Tool mm(in)Physical Dimension mm(in) (L×W×H)JZP980(38  1/2)180(7  3/32)Φ100～Φ230(4～9)8000×490×1320( 315×19×52 )

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Pilot Junk Mill Type GMX/YMX

Model “GMX” Pilot Junk Mill can be inserted into milling fish-top of fishes water-hole from the polit part. Model YMX Guide Mill Shoe can be used for milling inner bore and fish-top, or the unfixed fishes ( just like drill pipe, drill collar and tubing etc. ) The milling surface can be made of carbide alloy, and the water groove on mill body can make the drilling fluids flow. SpecificationsNominal O.D.  mm(in)Connection APImm(in)Suitable well diameter mm(in)97(3.82)NC2673～89(2.87～3.5)107.9～114.3(4.25～4.5)121(4.76)NC31、2-7/8REG、3-1/2REG90～102(3.54～4)130～139.7(5.11～5.5)130(5.12)100～160(3.93～6.3)142.9～152.4(5.63～6)140(5.51)110～120(4.33～4.72)155.6～165.1(6.13～6.5)156(6.14)3-1/2REG127(5)168～187.3(6.6～7.37)178(7)4-1/2REG158～168(6.22～6.61)190.5～209.5(7.5～8.25)200(7.87)168～178(6.61～7)212.7～241.3(8.37～9.5)232(9.13194(7.64)244.5～269.9(9.62～10.63)257(10.12)6-5/8REG210～219(8.26～8.62)273～295.3 (10.75～11.63)279(10.98)220～230(8.66～9)298.5～317.5 (11.75～12.5)295(11.61)240～246(9.45～9.68)320.6～346.1 (12.62～13.63)330(13)273(10.74)349.3～406.4 (13.75～16)381(15)320(12.61)406.4～444.5 (16～17.5)

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Tapered Mill Type XZ

The Tapered Mill Type XZ is used to recover bore size. It is mainly used to mill collapsed casing or eliminate restrictions, and can clear mineral crystals and some other hard debris stranding on the well wall. SpecificationsNominal O.D. mm(in)Connection APISuitable Hole Diameter mm(in)89(3.50)NC26、3-3/8REG95.2～101.6 (3.76～4)97(3.82)107.9～114.3(4.25～4.5)110(4.33)NC31、2-7/8REG、3-1/2REG117.5～127.0(4.63～5)121(4.76)130～139.7(5.11～5.5)130(5.12)142.9～152.4(5.63～6)140(5.51)NC38、3-1/2REG、4-1/2REG155.6～165.1(6.13～6.5)156(6.14)168～187.3(6.6～7.37)178(7)190.5～209.5(7.5～8.25)200(7.87)NC50、4-1/2REG212.7～241.3(8.37～9.5)232(9.13244.5～269.9(9.62～10.63)257(10.12)6-5/8REG273～295.3(10.74～11.63)279(10.98)298.5～317.5(11.75～12.5)295(11.61)320.6～346.1(12.62～13.63)330(13)349.3～406.4(13.75～16)381(15)406.4～444.5(16～17.5)406(15)7-5/8REG431.8～508(17～20)432(17)457.2～533.4(18～21)534(21)558.8～660(22～26)686(27)711.2～863.6(28～34)

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Flat Bottom Junk Mill Type MXP

Junk Mill Type MXP can be divided into three kinds: flat-bottom (or concave-bottom) milling shoe, guide milling shoe and cone milling shoe, according to its structure and shape. At the milling surface, the carbide particles are built up by welding, which plays a part of self-milling. It is used to mill the fallen substances, such as tooth wheel, slipdog, fittings for deep-well pump, etc. with the advantages of anti impact and longer service life. SpecificationsModelO.D. mm(in)Connection APIOverall length mm(in)MXP(A)80C-2A3080(3 1/8)2 3/8REG300(11 3/4)MXP(A)89C-2A3089(3 1/2)2 3/8REG500(19 5/8)MXP(A)92C-NC2392(3 5/8)NC23500(19 5/8)MXP(A)102C-210102(4)NC31500(19 5/8)MXP(A)108C-2A10108(4 1/4)NC26500(19 5/8)MXP(A)114C-210114(4 1/2)NC31500(19 5/8)MXP(A)146C-310146(5 3/4)NC38500(19 5/8)MXP(A)159C-310159(6 1/4)NC38500(19 5/8)MXP(A)190C-410190(7 1/2)NC50500(19 5/8)MXP(A)203C-410203(8)NC50500(19 5/8)MXP(A)292C-630292(11 1/2)6 5/8REG500(19 5/8)MXP(A)305C-630305(12)6 5/8REG500(19 5/8)MXP(A)410C-730410(16 1/8)7 5/8REG450(17 5/8)MXP(A)425C-630425(16 3/4)6 5/8REG500(19 5/8)

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WD-S hydraulic external cutting knife

It is usually connected with the washover pipe and can cut the fish at its any section. Compared with the mechanically-actuated one, it has the advantages of simple operation and quick cutting.

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WD-J type mechanical external cutting knife

It is spring fed automatically so that it can avoid the cutter breakdown which may be resulted from the larger pulling force.

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NG type mechanical internal cutting knife

it is pressured to rotate for cutting the drill string. If it is equipped with the spear, cutting and recovering can be completed at the same time.

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FJ type arrow check valve

Arrow Back-Pressure Sub Type FJ is an important kind of internal blowout preventer, with the function of preventing high-pressure oil and gas from blowing out of the drill string.

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LXF type continuous circulation valve

Model LXF continuous circulating valve is a kind of key tools used in continuous circulating well-drilling technology. The purpose is to solve a series of problems under the well caused by annulus pressure fluctuation due to the stop/start the circulation when unloading a single column during the well-drilling and stripping-in process.

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Floating valve core

In normal well-drilling, the valve cover of the floating valve core opens, then the drilling fluid circulates smoothly.

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NFQ type drilling tool internal blowout preventer

Model NFQ inner blowout preventer (Grey Valve) is a necessary blowout preventing device during drilling process specified by IADC (International Association of Drilling Contractors).

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