Drill pipe, used for well drilling, can be divided into SMLS and ERW steel pipe in our company. With the standard of API 5DP E 75/X 95/G 105/S 135, we shall supply customers their demand steel pipes.

Today, we'd like to discuss about the standard heavy weight for drill pipe used in oil and gas transmit. From the picture below, we can figure out that there are some main points we should pay attention to.

Elevator upset diameter, wear section upset diameter, upset diameter and nominal size should be point for the production process.

Box tool joint and pin tool joint is another key.

Of course, nominal length also plays an important role for whole drill pipe.