Oil Field Non Magnetic Drill Collars
Drill Rig Tools Standard Non Magnetic Drill Collar For Oil Field
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 the non-magnetic drill collar
r≤1.010. Magnetic induction intensity gradient of non-magnetic
drill collar at random intervals of 100mm along the inner hole
≤0.05
Non-magnetic drill collars have unusual design requirements, thus
creating unique corrosion resistance issues. The drill collar is
the bottom part of the drill string. Its weight generates a force
on the drill bit, which enables the drill bit to be drilled out,
and the rigidity of the drill collar prevents the transmission of
force from buckling. Traditional drill collars are made of alloy
steel, and like other parts of the drill string, their corrosion
usually does not cause any problems unless they are threaded. A
typical drill collar is 30 feet long and 4 to 9 inches in diameter.
Features
It has good low permeability and high strength. Excellent
mechanical properties, excellent intergranular corrosion
resistance, crack resistance and wear resistance.
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 |
Used in
Pipeline transportation, boiler pipes, hydraulic/automobile pipes,
oil/gas drilling, food/beverage/dairy products, machinery,
chemicals, mining, building decoration, special uses.
Advantages
Since all magnetic measuring instruments can sense the geomagnetic
field of the borehole when measuring the direction of the borehole,
the measuring instruments 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 data. The use of non-magnetic drill collars
can achieve a non-magnetic environment, with the characteristics of
drill collars in the drilling process.
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!
