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American University in CairoAUC Knowledge Fountain Theses and Dissertations 212016Multiaxial fatigue in drill pipes under nonproportional loading Nahla HelmyFollow this and additional works at: https://fount.aucegypt.edu/etdsRecommended

How to fill out fatigue estimation of drill-string

How to fill out fatigue estimation of drill-string

1. Determine the design life of the drill string.
2. Identify the critical components that are prone to fatigue failure.
3. Gather information on the operating conditions, such as tension, torque, and bending moments.
4. Calculate the stress cycles experienced by each critical component using the operating conditions.
5. Use fatigue curves or calculations to estimate the fatigue life of each critical component.
6. Sum the fatigue life of all critical components to estimate the overall fatigue life of the drill string.

Who needs fatigue estimation of drill-string?

1. Engineers involved in the design and maintenance of drilling equipment.
2. Operators of drilling rigs who want to ensure the safety and reliability of their equipment.
3. Researchers studying fatigue failure in drilling operations.

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What is fatigue estimation of drill-string?

Fatigue estimation of drill-string refers to the assessment process that evaluates the wear and tear on the drill-string components due to cyclic loading and fatigue over time, helping to predict the life expectancy and reliability of the equipment.

Who is required to file fatigue estimation of drill-string?

Operators and drilling contractors who utilize drill-string equipment in their operations are required to file fatigue estimations to ensure safety and compliance with industry standards.

How to fill out fatigue estimation of drill-string?

To fill out a fatigue estimation of drill-string, the operator must collect operational data, including load cycles, material properties, and environmental conditions, and then apply standardized methodologies to calculate and document the fatigue life and necessary evaluations in a prescribed format.

What is the purpose of fatigue estimation of drill-string?

The purpose of fatigue estimation of drill-string is to prevent equipment failures, ensure the safety of drilling operations, and optimize maintenance schedules by accurately predicting the remaining life of the drill-string components based on operational history.

What information must be reported on fatigue estimation of drill-string?

Key information that must be reported includes the operating conditions, load history, calculated fatigue life, material specifications, and any maintenance or inspections performed on the drill-string components.