Numerical analysis of underwater suspended pipes with one crack flaw

Numerical analysis of underwater suspended pipes with two interaction crack flaws

The little displacement of supports can induce vibration of suspended pipeline.

Motive respondence of three-dimension submarine suspended pipeline is investigated by means of mode analysis,also the respondent spectrum is given.

Based on the force balance condition of suspended pipeline,the simultaneous deformation of both ends of the pipeline is solved.

Numerical modeling of oil pipeline bending caused by migrating pingos in the permafrost on the northern Qinghai-Tibet Plateau;

A new method of synchronized design for oil pipeline and thermal insulation layer;

Design and implementation of the oil pipelines leak detection system based on wireless local area network;

The concept of synchronous design for oil transmission pipeline and its insulating layer is put forward from the angle of total expenses.

Leakage location system for oil pipeline based on stress wave detection;

Study of oil pipeline leakage detection based on fuzzy methods;

Analysis of the oil pipeline leakage feature vector extraction based on wavelet packet;

Detection of underground petroleum pipeline with infrared imaging method;

The technology of heat effect and chemical cleaning in petroleum pipeline;

With the operation time extention, various flaws, faults and damages occur with the effects of internal and external causes in petroleum pipeline.