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

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.

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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!