Drill pipe failure prevention-Corrosion protection with drill pipe surface coating and management of drill pipe use with fatigue database-
نویسندگان
چکیده
منابع مشابه
Research on Three-point Centering Device of Cylindrical Drill Pipe
In the process of tightening up and screwing off the iron roughneck, it is required that the center of clamping pliers and the center of drill pipe are coincident, so as to avoid the damage of the circular guide in clamping system, and to ensure the iron roughneck work normally. While the traditional method of centering is artificial in iron roughneck, its precision is low, so it is easy to dam...
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Among the power drills ( Electrical/ Pneumatic/Battery ) used in Orthopedic surgery, battery drill has got several advantages. Surgeons in low resource settings could not routinely use Orthopedic battery drills (OBD) due to the prohibitive cost of good drills or poor quality of other drills. “Hardware” or Engineering battery drill (HBD) is a viable alternative to OBD. HBD is easy to procure, ru...
متن کاملSimulation analysis of flow field and shear stress distribution in internal upset transition zone of drill pipe
Perforation in internal upset transition zone is one of the main failure styles for drill pipes. Due to the flow channel specificity of upset transition zone, in this paper, drill pipe failure analysis from the point of flow erosion was put forward. Flow field of drilling fluid in the internal upset transition zone of U127 mm API IEU S135 drill pipe under various conditions were obtained using ...
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After 50 years the connections between fresh water pipes (800-1000mm diameter) need to be repaired due to aging and dissolution of the filling material. Only in Vienna 3000km of pipes need to be improved, which requires a robotic solution. The main challenge is to accurate place the robot in the center of the pipe while overcoming the push back forces and vibrations caused in the cleaning proce...
متن کاملDrill failure during ORIF of the mandible. Complication management.
A case of a drill breakage during open reduction and internal fixation (ORIF) of a mandibular fracture is reported. The clinical decision, diagnosis and surgical management of the complication are described.
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ژورنال
عنوان ژورنال: Journal of the Japanese Association for Petroleum Technology
سال: 2006
ISSN: 1881-4131,0370-9868
DOI: 10.3720/japt.71.445