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Overview of non-magnetic weighted drill pipes

Overview of non-magnetic weighted drill pipes

The non-magnetic weighted drill rod is made of N1310 low-carbon alloy steel, which is forged through strict chemical composition analysis. The material has undergone mechanical performance testing to ensure that its hardness, toughness, impact value, and corrosion resistance meet the standards, and it has good low magnetic permeability and good mechanical processing performance.

2024/01/04

The characteristics of weighted drill pipes

The characteristics of weighted drill pipes

Weighted drill pipe is a transitional drill string section between ordinary drill pipes and drill collars. It can effectively alleviate stress concentration in the transitional section between drill collars and drill pipes, provide drilling pressure, and effectively reduce the connection area and outer diameter wear rate between drill pipes and wellbore.

2024/01/02

The role of petroleum drill rods

The role of petroleum drill rods

Oil drill pipe is a component in a tool that connects the drill bit and transmits power. The typical components of a drill string include: drill bit, drill collar, drill pipe, stabilizer, specialized joint, and square drill rod.

2023/12/25

The difference between drill collars and drill rods

The difference between drill collars and drill rods

The drill collar is attached to the drill pipe and plays a role in overall weighting to prevent deviation. The inner diameter of the drill collar is smaller than that of the drill pipe and the weight is larger than that of the drill pipe. During the drilling process, the drilling pressure is formed by the weight of the drill string (connected by the drill pipe), so the lower part of the drill string is subjected to compressive stress.

2023/12/19

Precautions for using non-magnetic drill collars

Precautions for using non-magnetic drill collars

1. After use, mud and dirt should be removed, the safety of each component should be checked, then anti rust oil should be applied and stored in a dry and ventilated place. 2. On site inspection, if one of the criteria for repair or scrapping is found, it should be recycled for repair or scrapping. 3. In order to ensure the accuracy of magnetic instrument measurement results, it is necessary to choose the length of the non-magnetic drill collar reasonably.

2023/12/13

The function of spiral drill collars

The function of spiral drill collars

Spiral drill collars are used to machine three right-handed spiral grooves on the outer cylindrical surface of circular drill collars. Leave a 305~560mm section at the external threaded end joint and a 457~610mm circular drill collar section without machining spiral grooves at the internal threaded end joint for ease of connection and repair. The weight is 4% less than that of circular drill collars of the same size.

2023/12/11

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