Stick-slip vibration presents one of the main problems in the quality of drilling performance
limiting tool life and productivity. This type of vibration can be suppressed by means of many …

Drilling is one of the most challenging and expensive processes in hydrocarbon extraction
and geothermal well development. Dysfunctions faced during drilling can increase the non …

Tubular strings in oil and gas wells are the backbone and central nervous system of oil and
gas drilling and production operations. Tubular mechanics in oil and gas wells is the most …

The complexity of designing and drilling extended-reach horizontal wells (ERHWs) depends
on the well objectives, target's location and wellbore trajectory. Axial load and torque …

Drilling extended-reach horizontal wells (ERHWs) have become a viable option for field
development because these wells bring additional reserves on line which may not be …

New and unconventional reserves are now being developed in more isolated and remote
locations by drilling extended-reach horizontal wells (ERWs). The complexity of designing …

在石油钻井过程中, 钻柱振动对钻头和钻柱有害, 甚至导致钻具失效. 研究近钻头振动数据规律
可以减少非生产时间(NPT), 提高钻井效率. 用功率谱密度和小波变换来分析振动信号 …

The failure of oil well drillstrings due to torsional and longitudinal stresses caused by stick-
slip phenomena during the drilling operation causes great expense to industry. Due to the …

During oil drilling process, drill string vibrations are detrimental to the bit and drill string,
which even causes failure of equipment. Researches show that, studying the law of near bit …

The drilling process is a major part of the hydrocarbon extraction process from the earth. It is
a very expensive process where any delay during the drilling process costs a substantial …