Heavy Weight Oil Well API Non Magnetic Drill Collars
API Non Magnetic Drill Collar ( NMDC ) For Oil And Gas Drilling
Features
It has good low permeability and high strength. Excellent
mechanical properties, excellent intergranular corrosion
resistance, crack resistance and wear resistance.
Advantages
Since all magnetic measuring instruments sense the borehole's
geomagnetic field when measuring the direction of the borehole, the
measuring instrument must be in a non-magnetic environment.
However, in the drilling process, the drilling tool is often
magnetic and has a magnetic field, which affects the magnetic
measuring instrument and cannot obtain the correct wellbore
trajectory measurement information data. The use of a non-magnetic
drill collar can implement a non-magnetic environment and has the
characteristics of a drill collar during drilling .
Product parameters
| Machine Type | Drilling Tool |
| Material | Carbon Steel |
| Processing Type | Forging |
| Use | Well Drilling |
| bit size | 3 3/4"(95mm) |
| connected thread | 2 7/8''reg |
| lobe | 5:6 |
| stage | 4 |
| flow rate | 162-578 lpm |
| rotory speed | 121-432rpm |
| working pressure loss | 3.2mpa |
| output torque | 613 N.m |
| output power | 36kw |
| Applicable Industries | Building Material Shops, Machinery Repair Shops, Construction works
, Energy & Mining |
| Model | ToolOD mm | Connecting Thread | For Mud motor | IADC |
| 4 1/8” | 108 | 2 7/8IF | 5LZ95x7.0L-5-600 | 127 217 517 537 617 637 |
| 5” | 127 | 3 1/2IF | 5LZ120x7.0-5-864 |
| 6 3/4” | 172 | 4 1/2IF | 5LZ165x7.0-5-840 |
| 7 1/2” | 190 | 5 1/2FH | 5LZ172x7.0-5-840 |
| 8 1/4” | 210 | 6 5/8FH | 5LZ203x7.0 -5-840 |
Introduction
The non-magnetic drill collar is made of low carbon high chromium
manganese alloy steel. It is refined by strict chemical
composition, and its mechanical properties are obtained through
forging. When the magnetic field strength is 1×105/4marea/m, the
relative permeability bias of non-magnetic drill collars is
r≤1.010. The magnetic induction intensity gradient of non-magnetic
drill collar at any interval of 100mm along the inner hole≤0.05
Non-magnetic drill collars have unusual design requirements, and as
a result pose unique problems of corrosion resistance. Drill
collars are the bottom components in a drill string, where their
weight generates the force on the drill bit allowing it to drill
and their stiffness allows the force to be transmitted without
buckling. Conventional drill collars are made of alloy steel, like
the rest of the drill string, and their corrosion usually poses no
problems except to their threaded connections. A typical drill
collar is 30 feet long and 4 to 9 inches in diameter.
Used in
Pipeline transportation, boiler tube, hydraulic/automotive tube,
oil/gas drilling, food/beverage/dairy products, machinery, chemical
industry, mining, building decoration, special purpose.
Pic Show
FAQ:
1. How to order the products?
A: Please send the inquiry with detail item description or with
Model number.
2. How about the common packing?
A: If there is no special packing demand, we will take it as our
normal packing. First in small carton, and then put in the bigger
carton together to make sure goods completed.
3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy
international request.
4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any
misunderstanding or any links from our website for a better
understanding.
5. How to control quality?
A: We have our own experienced QC team,there will be strict
inspection and testing for each order before shipping out.
6. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we
have stock of your request size.
7. Competitive price:
A: Our factory can supply you the lowest price due to direct sale
to customers without distributor!
