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- W2388337194 abstract "During drilling operations,drilling rigs must bear tensile,distortion,bending and other stress.At the same time,drilling rigs subject to corrosion and erosion of the mud,and have very harsh conditions of service.In order to improve the efficiency of production and safety,the situation of drilling damaged and expected life must be seriously tested.For avoiding the accident of drilling tools in the well effectively,based on the metal magnetic memory technique,an evaluating approach,which was suitable for the actual use of drilling tools,was brought out to evaluate the usage condition of the serviced drill and examine out the drill that can continue to use or not.The relationship between drillings magnetic signal and stress level was built up through theoretic deduction and local experiments.The stress factor model was developed base on the fracture mechanic principle.The attempt was carried out through using the FAD chart,and the results show that the testing method offers a guidance of drilling rigs evaluation." @default.
- W2388337194 created "2016-06-24" @default.
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- W2388337194 date "2011-01-01" @default.
- W2388337194 modified "2023-09-23" @default.
- W2388337194 title "Nondestructive Evaluation Technique for Drilling Rig Based on Metal Magnetic Memory" @default.
- W2388337194 hasPublicationYear "2011" @default.
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