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What is the working condition of the drill string during drilling

What is the working condition of the drill string during drilling

During the drilling process, the drill string alternates between working in two operations: tripping in and out and normal drilling.

2026/04/22

How to effectively manage and utilize the drill string, as well as how to select an appropriate drill bit combination, is particularly crucial during the drilling process

How to effectively manage and utilize the drill string, as well as how to select an appropriate drill bit combination, is particularly crucial during the drilling process

The drill string consists of the kelly, drill pipe, drill collar, stabilizer, and various other accessories.

2026/04/15

The transition characteristics of heavy drill pipe from flexible drill pipe to rigid drill collar during drilling

The transition characteristics of heavy drill pipe from flexible drill pipe to rigid drill collar during drilling

The transition characteristics of heavy drill pipes from flexible drill pipes to rigid drill collars during drilling

2026/04/09

What are the advantages of using heavy drill pipes instead of drill collars in softer geological formations

What are the advantages of using heavy drill pipes instead of drill collars in softer geological formations

Heavyweight drill pipe can replace drill collars to address a series of issues arising in vertical drilling under relatively soft geological formations。

2026/04/01

Under what circumstances will fatigue fracture occur in oil drill pipes

Under what circumstances will fatigue fracture occur in oil drill pipes

Oil drill pipes are subjected to various alternating loads in complex working environments. When the cumulative effect of these loads exceeds the fatigue limit of the material, fatigue fracture occurs.

2026/03/25

Oil drill pipes achieve intelligence and greening, leading the industry transformation

Oil drill pipes achieve intelligence and greening, leading the industry transformation

Oil drill pipes achieve intelligent and green transformation, leading the industry's evolution

2026/03/18

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