نتایج جستجو برای: drilling operation

تعداد نتایج: 223558  

2016
Jie Ma Yongqi Yang Xiaoli Dai Changgang Li Qinghong Wang Chunmao Chen Guangxu Yan Shaohui Guo

Contamination due to improper disposal of oilfield drilling waste is a serious environmental problem all over the world. This study used bench-scale experimental columns to investigate the effectiveness of combining soil vapor extraction (SVE) with bioremediation (bioaugmentation plus biostimulation) in treating drilling waste from onshore oil wells. The drilling waste used in this study was he...

Journal: :Bio-medical materials and engineering 2015
Dangxiao Wang Siming Zhao Teng Li Yuru Zhang Xiaoyan Wang

To evaluate the fidelity of the iDental system and investigate its utility and performance on simulated drilling operations, user studies consisting of objective and subjective evaluations were performed. A voxel-based drilling simulation sub-system in the iDental system was employed for evaluation. Twenty participants were enrolled to take part in the experiments and were divided into two grou...

Bayatzadehfard, Z., Fattahi , H.,

Horizontal Directional Drilling (HDD) is extensively used in geothechnical engineering. In a variety of conditions it is essential to predict the torque required for performing the reaming operation. Nevertheless, there is presently not a convenient method to accomplish this task. To overcome this problem, in this research, the application of computational intelligence methods for data analysis...

Journal: :Indian Journal of Science and Technology 2015

Journal: :Journal of the Japanese Association for Petroleum Technology 1968

Journal: :Journal of the Japanese Association for Petroleum Technology 2001

Journal: :international journal of nano dimension 0
s. alizadeh department of nano chemical engineering, shiraz university, shiraz, iran. s. sabbaghi department of nano chemical engineering, shiraz university, shiraz, iran. m. soleymani research institute of petroleum industry (ripi), tehran, iran.

maybe viscosity in drilling fluid is the most important parameter because cutting removal from well are task of viscose fluid. if viscosity of fluid is less than particular value, cutting will settle down in well and drilling operation will be stopped. in this study, synthesis of alumina/polyacrylamide nanocomposite through solution polymerization method was performed. rheological behavior of m...

2014
José Díaz-Álvarez Alvaro Olmedo Carlos Santiuste María Henar Miguélez

Carbon Fiber Reinforced Polymer (CFRPs) composites are extensively used in structural applications due to their attractive properties. Although the components are usually made near net shape, machining processes are needed to achieve dimensional tolerance and assembly requirements. Drilling is a common operation required for further mechanical joining of the components. CFRPs are vulnerable to ...

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