نتایج جستجو برای: optimum drilling operation
تعداد نتایج: 288378 فیلتر نتایج به سال:
A virtual teeth drilling system whose basic aim is to be used for the training of dental students in the handling of drilling instruments is presented in this paper. A 3D model of the face and the oral cavity is utilized by the application. This model can be adapted to the characteristics of a specific person and animated. Drilling is performed within the oral cavity, on realistic teeth models ...
Background: Today, the drilling industry is one of the world's most dangerous occupations because of the many accidents it is facing. Therefore, the study and evaluation of the risks of activities and operations in the drilling industry can be helpful in reducing the accident in this industry. Methods: In this research, the safety and health risk assessment of drilling operations was carried ou...
Bone drilling process is the most prominent process in orthopedically surgeries and curing bone breakages. It is also very common in dentistry and bone sampling operations. Due to complexity of the material that is machined, bone, and the sensitivity of the process, bone drilling is one of the most important, common and sensitive processes in biomedical engineering field. The most critical prob...
Objective: Musculoskeletal disorders are a major part of occupational diseases in working environments. Prevention of the occurrence of these problems requires the use of ergonomic assessment techniques and intervention to improve working conditions. The purpose of this study was to investigate the prevalence of musculoskeletal disorders in workers in the blast furnace unit and the intervention...
Optimization of drilling fluid parameters such as mud weight, salt concentration, and temperature is essential to alleviate instability problems during drilling through shale sections. The selection of suitable mud parameters can benefit from analyses that consider significant instability processes involved in shale-drilling–fluid interactions. This paper describes the development of analytical...
Determination of optimum parameters on delamination in drilling of GFRP composites by Taguchi method
Drilling is one of the important machining processes in hole making operations. Delamination is a vital problem during any drilling operation. It causes structural integrity reduction and poor assembly tolerance as well as potential for long-term performance deterioration. As a result, drilling of any material requires dimensional stability and interface quality. In this study, glass fibre rein...
Nowadays, UnderBalanced Drilling (UBD) technology is widely applicable in the petroleum industry due to its advantages to an overbalanced drilling operation. UBD success depends on maintaining the drilling fluid circulating pressure below the reservoir pore pressure during operations. One of the main prerequisites of a successful UBD operation is the correct estimation of the pressure profi...
During the petroleum well drilling operation many mechanical and hydraulic parameters are observed by an instrumentation system installed in the rig named mud-logging system. The mud-logging system is composed by several sensors distributed in the rig; these sensors measure different operation parameters like: hook load, column rotation, mud pit level, pumping pressure, etc. The mudlogging syst...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید