Results 101 to 110 of about 972,039 (207)

PDC Drill Bit Design Improvement using Reverse Engineering Method to Analyze Effect on Rate of Penetration [PDF]

, 2013
In the petroleum industry, drilling is one of the most important aspects due to the economics. Reduction in drilling time is required to minimize the cost of operations.
Ismail, Mohamad Zamri
core  

Laboratory Experimental Study on Rock Breaking Efficiency and Stability of PDC Bit

Shiyou jixie, 2020
In order to evaluate the rock breaking efficiency and stability of the newly developed PDC bit in the target lithologic formation, and guide the optimization, improvement and efficient use of the newly developed PDC bit, full scale laboratory rock ...
Zhang Jiawei, Meng Zhao, Ji Guodong, Cui Meng, Wang Haige, Yang Xiongwen, Yu Lianjie   +6 more
doaj  

New Progress and Development Trends of PDC Bits in China and Abroad

Shiyou jixie
PDC bits have developed rapidly in recent years.The new progress of PDC bits used in oil and gas wells in China and abroad was reviewed,and CNPC's efforts in the research and application of new bits were introduced.Furthermore,the situation and ...
Hu Huaigang, Huang Hongchun, Wang Haige, Li Zhongming, Xi Chuanming, Wu Qiang, Liu Li   +6 more
doaj  

Study on the Bottom Hole Flow Field Analysis Platform of PDC Bit

Shiyou jixie, 2017
The conventional numerical simulation of hydraulic performance of the bottom hole flow field of PDC bit has the shortcomings like high threshold, time-consuming and repetitive work.
Kuang Yuchun, Wang Fang, Wei Lihong, Dong Zongzheng, Luo Jinwu   +4 more
doaj  

Experiment and Simulation of Self-excited Torkbuster

Shiyou jixie, 2017
The stick-slip vibration is a technical bottleneck restricting for PDC bit in efficient drilling deep hard formation. To reduce the stick-slip vibration of drill bit during drilling deep hard formations, a torkbuster has been introduced.
Ma Hongyan, Wang Hongbo, Wang Daning, Zhang Jingsong, Zhang Yanrui, Quan Hulin   +5 more
doaj  

Model of deep refining wells of PDC wells with bit

, 2017
Рассмотрена модель буримости для долот PDC, включающая три константы идентификации: начальную скорость, темп падения скорости из-за износа алмазно-твердосплавного вооружения во времени, и показатель степени, в которой возводится время.
Шарауова, А.Б., Федоров, Б.В., Ратов, Б.Т.   +2 more
core  

Methods of Drilling Speed Promotion for Several Typical Difficult Drilling Formations

Shiyou jixie, 2016
Considering the low ROP and short service life of PDC bit in extra-hard, strong abrasion and soft and hard interlayered heterogeneous formation, new drilling tools and methods are needed to address the drilling speed promotion challenge in difficult ...
Tong Jinwang
doaj  

Laser-assisted full-size PDC bit: Drilling performance and parameter optimization

Journal of Rock Mechanics and Geotechnical Engineering
Bin Liu, Bin Xu, Biao Li, Bo Zhang, Xin-Jie Huang, Tongyuan Liu   +5 more
semanticscholar   +1 more source

Development and application of a hybrid PDC bit for drilling the high temperature granite formation in the deep geothermal exploration well Fushenre-1

Energy Geoscience
Huai-Zhong Shi, Sen-Lin He, Chao Xiong, Zhongwei Huang, Wen-Hao He, Gensheng Li   +5 more
semanticscholar   +1 more source

Rock Breaking Simulation and Optimization of PDC Bit for Jimsar Shale Formation

Conventional planar-cutter PDC bit exhibits prominent problems in drilling， such as severe wear， frequent cutter breakage and short footage， resulting in low drilling efficiency and high cost. To improve the drilling speed and reduce the drilling cost in
Zang Chuanzhen
core   +1 more source