Non Magnetic Oil Rig Drilling Spiral Drill Collar

Spiral Drill Collar Non Magnetic Drill Collar For Oil Rig Drilling

Introduction

The non-magnetic drill collar is made of a low-carbon high-chromium manganese alloy steel. It is refined after strict chemical composition and achieved its mechanical properties by forging. When the magnetic field strength is 1 × 105 / 4π A / m, the relative permeability μr≤1.010 of the non-magnetic drill collar. The gradient of the magnetic induction intensity of the non-magnetic drill collar at any interval of 100mm along the inner hole is ≤0.05μT.

Non-magnetic drill collars have unusual design requirements, resulting in unique corrosion resistance issues. The drill collar is the bottom part of the drill string. Its weight generates the force on the drill bit to allow the drill bit to be drilled out. The rigidity of the drill collar prevents the force transmission from buckling. Traditional drill collars are made of alloy steel, just like other parts of the drill string, their corrosion usually does not cause any problems, except for their threaded connections. A typical drill collar is 30 feet long and 4 to 9 inches in diameter.

Features

It has good low permeability and high strength. Mechanical properties, excellent intergranular corrosion cracking resistance and excellent wear resistance.

Product parameters

Used in

Pipeline transportation, boiler tubes, hydraulic/automotive tubes, oil/gas drilling, food/beverage/dairy products, machinery industry, chemical industry, mining, construction and decoration, special purpose.

Advantages

Since all magnetic measuring instruments can sense the geomagnetic field in the borehole when measuring the borehole direction, 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 can not get the correct wellbore trajectory measurement information data. Non-magnetic environment can be realized by using non-magnetic drill collar, which has the characteristics of drill collar during drilling.

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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!