We supply API 6A LT Plug Valves 1",2",3",4",5" with repairt kits plug,insert,insert o-ring,adjust nut o ring, plug seal, fender washer,cap screw,valve handle,alignment stop screw,grease fitting.
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Email: rigparts@163.com Mobile/WhatsApp: 0086-18954079939 Skype: spareparts1960
2017年5月11日星期四
Supply FET Swivel -SJ15210MF,SJ15210MM,SJ15310MF, SJ15310MM, SJ15310MHDFHD,SJ124LR10MF,SJ124LR10MM, SJ15410MF,SJ15410MM
Swivel assy 2 in Fig 1502 FM STY 10 STD 15K SJ15210MF
Swivel assy 2 in Fig 1502 MM STY 10 STD 15K SJ15210MM
Swivel assy 3 in Fig 1502 FM STY 10 STD 15K SJ15310MF
Swivel assy 3 in Fig 1502 MM STY 10 STD 15K SJ15310MM
Swivel assy 3 in Fig 1502 FM STY 10 FHDMHD STD 15K SJ15310MHDFHD
Swivel assy LR 4 in Fig 1002 MF STY 10 STD 10K SJ124LR10MF
Swivel assy LR 4 in Fig 1002 MM STY 10 STD 10K SJ124LR10MM
Swivel assy 4 in 1502 FM STY 10 STD 15K SJ15410MF
Swivel assy 4 in 1502 MM STY 10 STD 15K SJ15410MM
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Swivel assy 2 in Fig 1502 MM STY 10 STD 15K SJ15210MM
Swivel assy 3 in Fig 1502 FM STY 10 STD 15K SJ15310MF
Swivel assy 3 in Fig 1502 MM STY 10 STD 15K SJ15310MM
Swivel assy 3 in Fig 1502 FM STY 10 FHDMHD STD 15K SJ15310MHDFHD
Swivel assy LR 4 in Fig 1002 MF STY 10 STD 10K SJ124LR10MF
Swivel assy LR 4 in Fig 1002 MM STY 10 STD 10K SJ124LR10MM
Swivel assy 4 in 1502 FM STY 10 STD 15K SJ15410MF
Swivel assy 4 in 1502 MM STY 10 STD 15K SJ15410MM
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Supply Casing bow-spring centralizers ,cable protector
We supply Casing bow-spring centralizers and centralizer,cross coupling cable protector installation instruction, mid-joint cable protector, cross coupling cable protector, centrlizer cable protector, dual channel cable protector, one-piece bow-spring casing centralizer,spiral weld rigid centralizer,cable protectors etc. at discount price.
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Supply API Spec 7-1 downhole drilling tools
We supply Supply API Spec 7-1 downhole drilling tools that include:
Kelly valves, kellys, drill stem subs, drill collors, heavy weight drill pipe, threading for ratory shouldered connections, rotary kelly,IBOP for Top drive,Float valve,Float valve sub,arrow type check valve, drop-in check valve, inside blow out preventer, circulation sub, integral spiral blade stabilizer, sleeve stabilizer, rotary reamer, hole opener, lift sub, lift plug, sub and joint, directional bent sub, core barrel, releasing and circulating overshot, releasing spear, taper taps & die collars, back-off releasing spear,back-off joint, sliding slip spear, safety joint, junk sub, internal hook & external hook ,impression block, multi-purpose fisher, casing spear, fishing magnet, reverse circulation junk basket, junk mills, window mill, washover pipe, drive sub, rotary shoe, section mill, internal cutter, external cutter, seating nipple, casing packer,crossover subs
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Supply ZP275 ROTARY TABLE and parts -API specification 7K
ZP275 rotary table is mainly used for:
1.1 Drive the drill pipe in the process of drill or fishing operation.
1.2 Equalize the torque reaction of the drill string during drill.
1.3 Suspend the pipe string while unloading the drill pipe or casing.
1.4 Loosen the thread join while raising the drill pipe.
TECHNICAL SPECIFICATION
Max. Static Load: 4500KN
Max. Rotating Speed: 300r/min
Opening Diameter: 698.5mm(27 ½ in)
Transmission Ratio: 3.67:1
Distance between rotary table center and
the row 1: 1353mm
Weight: 6163kg
Size(L×W×H): 2391.5×1670×685 mm
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
1.1 Drive the drill pipe in the process of drill or fishing operation.
1.2 Equalize the torque reaction of the drill string during drill.
1.3 Suspend the pipe string while unloading the drill pipe or casing.
1.4 Loosen the thread join while raising the drill pipe.
TECHNICAL SPECIFICATION
Max. Static Load: 4500KN
Max. Rotating Speed: 300r/min
Opening Diameter: 698.5mm(27 ½ in)
Transmission Ratio: 3.67:1
Distance between rotary table center and
the row 1: 1353mm
Weight: 6163kg
Size(L×W×H): 2391.5×1670×685 mm
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Service Calipers DBS75-3-00 for Beijing Hyd.DISC BRAKE For drawworks
We supply parts for disc brake
Service Calipers DBS75-3-00
Service Brake Valve:YK02-01-00
Brake discs Brake pads DBS75-2-01
Connection ring Spring washer GB93-87
Hexagon head bolt GB/T5783-1986 Hexagon head bolt GB32.1-88A
Spring washer GB93-87 Clamp body DBS75-2-02
Nut GB6175-86 Shaft sleeve DBS75-2-15
Lower floor Pin DBS75-2-16
Safety gear DBS90-2-00 Elastic ring for shaft GB894.2-86
Clamp Press the oil cup GB1152-79
Shaft sleeve SF-1 Small extension spring DBS75-2-05
Working clamp DBS90-3-00 Shaft sleeve DBS75-2-14
Roller Bolts for joints GB798-88
On the floor Hanging shaft DBS75-2-04
Hexagon head bolt GB/T5783-1986 Nut GB6170-86
Spring washers GB93-87 lever DBS75-2-03
Hexagon socket head cap screws GB70-85 Pin DBS75-2-09
Resilient washer GB93-87 Shaft sleeve DBS75-2-08
Dust seal A1 8002 P5008 Cross recessed countersunk head screw GB819-85
Piston rod seal B3 8088 P5008 Blocking plate DBS75-2-17
Manometric exhaust connector PPT-3 Safety gear cylinder assembly DBS75-2-07.0
End cap DBS75-2-07.1 Shaft sleeve DBS75-2-13
Guide belt F3 0520 25097 Shaft sleeve DBS75-2-12
O-ring GB1234-76 Pin DBS75-2-11
Shaft sleeve DBS75-2-07.11 Strut DBS75-2-06
piston DBS75-2-07.2 Semi-circular retaining ring DBS75-2-10
B7 sealing ring B7 0150A P5008 Hexagon head bolt GB5783-86
Guide belt F3 0520 25150 Elastic snap ring for shaft GB894.2-86
Elastic guide sleeve DBS75-2-07.5 Brake pads DBS75-2-01
Disc spring DBS75-2-07.4 Resilient washer GB93-87
Limit sets DBS75-2-07.12 Hexagon head bolt GB32.1-88A
Cylinder DBS75-2-07.3 Clamp body DBS75-2-02
fasten the screw nut DBS75-2-07.6 Shaft sleeve DBS75-2-15
Countersunk head screw GB819-85 Pin DBS75-2-16
Retaining ring DBS75-2-07.9 Elastic ring for shaft GB894.2-86
Adjusting nut DBS75-2-07.7 Press the oil cup GB1152-79
mandrel DBS75-2-07.10 Small extension spring DBS75-2-05
Hexagon Socket Head Cap Screws GB70-85 Shaft sleeve DBS75-2-14
Spring washer GB93-87 Bolts for joints GB798-88
Dust seal A1 8002 P5008 Hanging shaft DBS75-2-04
BA piston rod seal BA 8007 00030 Nut GB6170-86
Respirator DBS75-3-02.5 lever DBS75-3-01
End cap DBS75-3-02.1 Nut GB6170-86
O-ring GB1235-76 Pin DBS75-3-05
Guide belt F3 052 25097 Adjust the screw DBS75-3-04
bushing DBS75-2-7.11 Shaft sleeve DBS75-2-08
piston DBS75-3-02.2 Blocking plate DBS75-2-17
Guide belt F3 052 25150 Cross recessed countersunk head screw GB819-85
Piston seal B7 C215 P5008 Working clamp cylinder assembly DBS75-3-02.0
bushing DBS75-3-02.8 Shaft sleeve DBS75-2-13
Cylinder body DBS75-3-02.3 Shaft sleeve DBS75-2-12
Manometric exhaust connector PPT-3 Pin DBS75-2-11
Pull cover DBS75-3-02.4 Semi-circular retaining ring DBS75-2-10
Operate the valve YK02-01-00 Hexagon head bolt GB5783-86
Screw GB70-85 Elastic snap ring for shaft GB894.2-86
Valve frame YK02-02-00 Tension spring DBS75-3-03
Valve group YK02-03-00 Strut DBS75-2-06
Screw GB70-85 Brake operating mechanism YK02-01-00
Valve group YK02-04-00 Brake valve LT07MKA-2X
Button valve K23R5-L8-(103) Connector
Pneumatic connector Parking valve DG17V-3-2N-6
PVC pipe Throttle powered by Z2SF6-30/S2
Stainless steel tube Screw GB70-85
Stainless steel tube Bottom plate YK02-03-01A
Steel plate YK02-05 Screw plug JB1001-77
Screw GB819-85 Fittings JB978-77.2
Oil block YK02-04-01 Direct - operated relief valve DBS6K10/200
stainless steel pipe Pressure line filter ZU.1-E25X10BD-P
Pneumatic control valve 4WP6D5X/N Check valve 08MK650
Hydraulic pilot valve 3WH6A5X Nuts 90251000
Throttle powered by Z2SF6-30/S2 Screw GB70-85
Hydraulic pilot valve 3WH6B5X Double - head bolt MECC
Screws GB70-85 Nut MECC
Pipe joint YK02-04-02-00 Connector body JB984
Pipe fitting YK02-04-03-00 Pressure gauges PT-7
Fittings JB966-77.5 High pressure ball core globe valve QJH-10G
Screw plug JB1001-77 High pressure hose 221-600KA JB1885-77
Screw plug JB1001-77 High pressure ball core globe valve QJH-20G
Pressure measuring hose HFJ1-P1-2-P-2 Hand pump QH-25
Fittings JB1883-77.5 High pressure ball core globe valve QJH-15G
Gas line quick connector Accumulator NXQ-F6.3/200
Pipe joint JB978-77.1 Return oil filter RFA-40X10Y
Fittings JB978-77.2 Cooler powered by KMCL-3Y04
Explosion - proof electrical machinery YB100L1-4W Pipe fitting JB966
High pressure ball core globe valve PKH10 air filter QUQ2
PVC pipe with stiffeners d20mm Explosion - proof electric heater BGY2-220/1
Screw GB5780-86 O-ring Ø75x3.1 GB1235-76
Explosion - proof electrical control box EXX Screw GB70-85
Bolt GB5780-86 Oil block 90251002
Bolt GB5780-86 Oil block 902510010262004
Sleeve flange 90261001 Connector body 262004
Plum coupling ML2 Quick Change Connector 3 / 8BSP H2-62
Tank 90L Tank Hydraulic station box 90252000
Plunger pump noun engin A10V Control valve block assembly 9025100
Fittings JB966.4.00 Connector body 90262003
Connector body JB984 Quick Change Connector 1 / 2BSP H4-62
Screw JB70-85 Plastic pipe clamps THPG1-228
Connector body JB984 Fittings HB970
High pressure hose assembly JB1885 Fittings JB966
High pressure hose assembly JB1885 Line filter SP-06X25
Level thermometer YW2-150 Pressure gauge 0-16Mpa YN60-III
Fittings JB966 Pressure measuring hose HFH2-P1-2-P-1.5
Reducing tube 22/28 Straight pipe coupling JB974
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Service Calipers DBS75-3-00
Service Brake Valve:YK02-01-00
Brake discs Brake pads DBS75-2-01
Connection ring Spring washer GB93-87
Hexagon head bolt GB/T5783-1986 Hexagon head bolt GB32.1-88A
Spring washer GB93-87 Clamp body DBS75-2-02
Nut GB6175-86 Shaft sleeve DBS75-2-15
Lower floor Pin DBS75-2-16
Safety gear DBS90-2-00 Elastic ring for shaft GB894.2-86
Clamp Press the oil cup GB1152-79
Shaft sleeve SF-1 Small extension spring DBS75-2-05
Working clamp DBS90-3-00 Shaft sleeve DBS75-2-14
Roller Bolts for joints GB798-88
On the floor Hanging shaft DBS75-2-04
Hexagon head bolt GB/T5783-1986 Nut GB6170-86
Spring washers GB93-87 lever DBS75-2-03
Hexagon socket head cap screws GB70-85 Pin DBS75-2-09
Resilient washer GB93-87 Shaft sleeve DBS75-2-08
Dust seal A1 8002 P5008 Cross recessed countersunk head screw GB819-85
Piston rod seal B3 8088 P5008 Blocking plate DBS75-2-17
Manometric exhaust connector PPT-3 Safety gear cylinder assembly DBS75-2-07.0
End cap DBS75-2-07.1 Shaft sleeve DBS75-2-13
Guide belt F3 0520 25097 Shaft sleeve DBS75-2-12
O-ring GB1234-76 Pin DBS75-2-11
Shaft sleeve DBS75-2-07.11 Strut DBS75-2-06
piston DBS75-2-07.2 Semi-circular retaining ring DBS75-2-10
B7 sealing ring B7 0150A P5008 Hexagon head bolt GB5783-86
Guide belt F3 0520 25150 Elastic snap ring for shaft GB894.2-86
Elastic guide sleeve DBS75-2-07.5 Brake pads DBS75-2-01
Disc spring DBS75-2-07.4 Resilient washer GB93-87
Limit sets DBS75-2-07.12 Hexagon head bolt GB32.1-88A
Cylinder DBS75-2-07.3 Clamp body DBS75-2-02
fasten the screw nut DBS75-2-07.6 Shaft sleeve DBS75-2-15
Countersunk head screw GB819-85 Pin DBS75-2-16
Retaining ring DBS75-2-07.9 Elastic ring for shaft GB894.2-86
Adjusting nut DBS75-2-07.7 Press the oil cup GB1152-79
mandrel DBS75-2-07.10 Small extension spring DBS75-2-05
Hexagon Socket Head Cap Screws GB70-85 Shaft sleeve DBS75-2-14
Spring washer GB93-87 Bolts for joints GB798-88
Dust seal A1 8002 P5008 Hanging shaft DBS75-2-04
BA piston rod seal BA 8007 00030 Nut GB6170-86
Respirator DBS75-3-02.5 lever DBS75-3-01
End cap DBS75-3-02.1 Nut GB6170-86
O-ring GB1235-76 Pin DBS75-3-05
Guide belt F3 052 25097 Adjust the screw DBS75-3-04
bushing DBS75-2-7.11 Shaft sleeve DBS75-2-08
piston DBS75-3-02.2 Blocking plate DBS75-2-17
Guide belt F3 052 25150 Cross recessed countersunk head screw GB819-85
Piston seal B7 C215 P5008 Working clamp cylinder assembly DBS75-3-02.0
bushing DBS75-3-02.8 Shaft sleeve DBS75-2-13
Cylinder body DBS75-3-02.3 Shaft sleeve DBS75-2-12
Manometric exhaust connector PPT-3 Pin DBS75-2-11
Pull cover DBS75-3-02.4 Semi-circular retaining ring DBS75-2-10
Operate the valve YK02-01-00 Hexagon head bolt GB5783-86
Screw GB70-85 Elastic snap ring for shaft GB894.2-86
Valve frame YK02-02-00 Tension spring DBS75-3-03
Valve group YK02-03-00 Strut DBS75-2-06
Screw GB70-85 Brake operating mechanism YK02-01-00
Valve group YK02-04-00 Brake valve LT07MKA-2X
Button valve K23R5-L8-(103) Connector
Pneumatic connector Parking valve DG17V-3-2N-6
PVC pipe Throttle powered by Z2SF6-30/S2
Stainless steel tube Screw GB70-85
Stainless steel tube Bottom plate YK02-03-01A
Steel plate YK02-05 Screw plug JB1001-77
Screw GB819-85 Fittings JB978-77.2
Oil block YK02-04-01 Direct - operated relief valve DBS6K10/200
stainless steel pipe Pressure line filter ZU.1-E25X10BD-P
Pneumatic control valve 4WP6D5X/N Check valve 08MK650
Hydraulic pilot valve 3WH6A5X Nuts 90251000
Throttle powered by Z2SF6-30/S2 Screw GB70-85
Hydraulic pilot valve 3WH6B5X Double - head bolt MECC
Screws GB70-85 Nut MECC
Pipe joint YK02-04-02-00 Connector body JB984
Pipe fitting YK02-04-03-00 Pressure gauges PT-7
Fittings JB966-77.5 High pressure ball core globe valve QJH-10G
Screw plug JB1001-77 High pressure hose 221-600KA JB1885-77
Screw plug JB1001-77 High pressure ball core globe valve QJH-20G
Pressure measuring hose HFJ1-P1-2-P-2 Hand pump QH-25
Fittings JB1883-77.5 High pressure ball core globe valve QJH-15G
Gas line quick connector Accumulator NXQ-F6.3/200
Pipe joint JB978-77.1 Return oil filter RFA-40X10Y
Fittings JB978-77.2 Cooler powered by KMCL-3Y04
Explosion - proof electrical machinery YB100L1-4W Pipe fitting JB966
High pressure ball core globe valve PKH10 air filter QUQ2
PVC pipe with stiffeners d20mm Explosion - proof electric heater BGY2-220/1
Screw GB5780-86 O-ring Ø75x3.1 GB1235-76
Explosion - proof electrical control box EXX Screw GB70-85
Bolt GB5780-86 Oil block 90251002
Bolt GB5780-86 Oil block 902510010262004
Sleeve flange 90261001 Connector body 262004
Plum coupling ML2 Quick Change Connector 3 / 8BSP H2-62
Tank 90L Tank Hydraulic station box 90252000
Plunger pump noun engin A10V Control valve block assembly 9025100
Fittings JB966.4.00 Connector body 90262003
Connector body JB984 Quick Change Connector 1 / 2BSP H4-62
Screw JB70-85 Plastic pipe clamps THPG1-228
Connector body JB984 Fittings HB970
High pressure hose assembly JB1885 Fittings JB966
High pressure hose assembly JB1885 Line filter SP-06X25
Level thermometer YW2-150 Pressure gauge 0-16Mpa YN60-III
Fittings JB966 Pressure measuring hose HFH2-P1-2-P-1.5
Reducing tube 22/28 Straight pipe coupling JB974
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
Supply JYS21-25 Pressure reducing and regulating valve and parts
1 Locking handle 9161100003
2 Hand wheel 9161100001
3 Hidden hex-flat end screw 4201030190 M6×10
4 Hexangular thin nut 4204000140 M16
5 Adjusting screw 9161100002
6 Spring foundation 9161100008
7 Orienting sleeve 9161200010
8 O-ring 5303001270 48.7×3.55
9 Oil- inlet flange 9161100013
10 Hidden hex screw 4201120250 M10×35
11 Valve body 9161100012
12 Connecting rod 9161200009
13 Cylinder pin 4207010080 6×20
14 O-ring 5303001040 20×2.4
15 Retaining ring 9161100020
16 Sealing case 9161200015
17 Spring 9161200016
18 Waving spring 9161100022
19 Oil–drain sealing ring 9161100021
20 O-ring 5303001350 63×3.55
21 Plunger 9161100024
22 Hidden hex screw 4201120090 M6×25
23 O-ring 5303001330 56×3.55
24 Down plug 9161100018
25 Flange 9161100023
26 Oil-outlet flange 9161100025
27 Hidden hex screw 4201120240 M10×30
28 O-ring 5303001180 33.5×3.55
29 Spring adjusting cover 9161101000
30 O-ring 5303001130 30×2.65
31 Pressure reducing sealing ring 9161200017
32 Big spring 9161100006
33 O-ring 5303001010 17×2.65
34 Oil-inlet plunger 9161200019
35 Small spring 9161100007
36 Spring director 9161200005
37 Bearing 4301000060 8102
38 Bearing cover 9161200014
39 Sealing plunger 9161100004
40 Elastic retaining ring for rod 4206021050
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
2 Hand wheel 9161100001
3 Hidden hex-flat end screw 4201030190 M6×10
4 Hexangular thin nut 4204000140 M16
5 Adjusting screw 9161100002
6 Spring foundation 9161100008
7 Orienting sleeve 9161200010
8 O-ring 5303001270 48.7×3.55
9 Oil- inlet flange 9161100013
10 Hidden hex screw 4201120250 M10×35
11 Valve body 9161100012
12 Connecting rod 9161200009
13 Cylinder pin 4207010080 6×20
14 O-ring 5303001040 20×2.4
15 Retaining ring 9161100020
16 Sealing case 9161200015
17 Spring 9161200016
18 Waving spring 9161100022
19 Oil–drain sealing ring 9161100021
20 O-ring 5303001350 63×3.55
21 Plunger 9161100024
22 Hidden hex screw 4201120090 M6×25
23 O-ring 5303001330 56×3.55
24 Down plug 9161100018
25 Flange 9161100023
26 Oil-outlet flange 9161100025
27 Hidden hex screw 4201120240 M10×30
28 O-ring 5303001180 33.5×3.55
29 Spring adjusting cover 9161101000
30 O-ring 5303001130 30×2.65
31 Pressure reducing sealing ring 9161200017
32 Big spring 9161100006
33 O-ring 5303001010 17×2.65
34 Oil-inlet plunger 9161200019
35 Small spring 9161100007
36 Spring director 9161200005
37 Bearing 4301000060 8102
38 Bearing cover 9161200014
39 Sealing plunger 9161100004
40 Elastic retaining ring for rod 4206021050
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
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