6 3/4" Non Mag Drill Collars NMDC Oil Gas Drilling Tool

6 3/4" Non Mag Drill Collars NMDC Oil Gas Drilling Tool

API Drill Collar Spiral Drill Collar And Non Magnetic Drill Collar

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 contains a magnetic field, which affects the magnetic measurement instrument and cannot obtain correct wellbore trajectory measurement information data. The use of non-magnetic drill collars can achieve a non-magnetic environment, which has the characteristics of drill collars during drilling.

Introduction

The non-magnetic drill collar is made of low carbon high chromium manganese alloy steel. After strict chemical composition refinement, the mechanical properties are achieved through forging. When the magnetic field intensity is 1×105 /4πA/m, the relative permeability of the non-magnetic drill collar μr≤1.010. 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 and therefore bring unique corrosion resistance issues. The drill collar is the bottom component of the drill string. The weight of the drill generates a force on the drill bit on the drill generates to make it drill in. The stiffness of the drill allows the force to be transmitted without bending. Like other drill strings, conventional drill collars are made of alloy steel. Except for threaded connections, there is usually no problem with their corrosion. A typical drill collar is 30 feet long and 4 to 9 inches in diameter.

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.

Features

It has good low permeability and high strength. Excellent mechanical properties, excellent intercrystalline corrosion resistance, cracking resistance and wear resistance.

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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!