QUALITY IS OUR CORE.
OUR CONCEPT.
PRODUCTS
Quality is our core our concept
PRODUCT QUICK FIND
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DRILLING RIG & ACCESSORIES
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MUP PUMP AND EXPENDABLE
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Expendable & Part of Mud Pump
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FLUID END MOUDULES
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FLUID END EXPENDABLES
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FLUID END SPARES
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L SHAPE FLUID ENDS
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LINERS
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PISTONS
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POWER ENDS
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PULSATION DAMPENERS
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RODS & CLAMPS
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VALVES & SEATS
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EWS MUD PUMPS
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F SERIES MUD PUMPS
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GD MUD PUMPS
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WELL SERVICE PUMPS
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OIFFIELD BEARINGS
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PLUNGER PUMP FLUID ENDS
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FRAC PLUNGERS
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PLUNGER PUMP VALVES & SEATS
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WELL SERVICE PUMP PACKING AND
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SHALE SHAKER SCREEN
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WASH PIPES
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Mud Pump
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HBF
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HB3NB
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HBZ Triplex Mud pump
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Mud Pump Packaging
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Mud Pump Pressure Gauge
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Pressure Pump
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HANDING TOOL
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BOP & COMPONENTS
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SOLID CONTROL SYSTEM
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DRILLING TOOLS
DRILL STEM ACCESSORIES
Pup joints:
Any type of pub joints is made from the same material as our drill collars. All connections are phosphate coated to improve resistance to galling. Standard lengths are 5ft,10ft, 15ft, 20ft, and additional sizes are available upon request. Integral pub joints have the same properties in tensile, yield and torsion as compared with S-135 which has the same ID, All products are conformed with API Specification.
Lift subs and lift plugs:
Lift subs and lift plugs are manufactured to the same specifications used for drill collars.
(A) Lift plug plate diameter is approximately 2 Inches larger than drill collar diameter.
Lift subs can be ordered with top connection.
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Lifting size for drill collar |
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No. |
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Inside diameter d/mm |
Connection of pin thread |
Lifting end |
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Thread type |
Outside Diameter DP ± 0.08( ± 1/32)mm(in) |
Bevel Diameter DF/mm |
Length of tong snap-in LPB/mm |
Outside Diameter DB ± 0.08mm |
Round angle radius of elevator shoulder end RSE ± 0/04mm |
Length of tong snap-in LB/mm |
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1 |
73.0(2 7/8) |
31.8 |
NC23 |
79.4(3 1/8) |
76.2 |
250.0 |
111.1 |
4.8 |
100.0 |
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2 |
44.5 |
NC26(2 3/8) |
88.9(3 1/2) |
82.9 |
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3 |
88.9(3 1/2) |
54.0 |
NC31(2 7/8) |
104.8(4 1/8) |
100.4 |
127.0 |
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4 |
50.8 |
NC35 |
120.7(4 3/4) |
114.7 |
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5 |
68.3 |
NC38(3 1/2IF£© |
127.0(5) |
121.0 |
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6 |
127.0(5) |
71.4 |
NC44 |
152.4(6) |
144.5 |
168.3 |
6.4 |
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7 |
158.8(6 1/4) |
149.2 |
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8 |
82.6
95.3 |
NC46(4IF) |
158.8(6 1/4) |
150.0 |
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9 |
165.1(6 1/2) |
154.8 |
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10 |
171.5(6 3/4) |
159.5 |
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11 |
NC50(4 1/2IF) |
177.8(7) |
164.7 |
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12 |
184.2(7 1/4) |
169.5 |
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13 |
NC56 |
196.8(7 3/4) |
185.3 |
300.0 |
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14 |
203.2(8) |
190.1 |
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15 |
6 5/8REG |
209.6(8 1/4) |
195.7 |
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16 |
NC61 |
228.6(9) |
212.7 |
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17 |
7 5/8 REG |
241.3(9 1/2) |
223.8 |
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18 |
NC70 |
247.7(9 3/4) |
232.6 |
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19 |
254.0(10) |
237.3 |
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20 |
NC77 |
279.4(11) |
260.7 |
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QINGDAO OILRIG TRADE CO., LTD. has been dedicating itself to export business of oilfield equipment and components to North/South America, Europe, Middle East, South East Asia .
OILRIG warrants our products for a period of one year to be free from defective material and workmanship. OILRIG's products equal or exceed the quality and tolerances of the products provided by the original manufacturer.
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