Results 11 to 20 of about 345,800 (104)
Drillstring Failure: Analytical and Experimental Approach [PDF]
MATEC Web of Conferences, 2019 Drilling is one of the costliest activities in oil and gas industry due to the complexity of interactions with downhole rock formation. Under such conditions, the uncertainty of drillstring behaviour increase and hence it becomes difficult to predict the
Hassan Edris +3 more
doaj +2 more sources
Effect of automobile operating condition on the subjective equivalence of steering wheel vibration and sound [PDF]
, 2006 The research described here was performed to define curves of subjective equivalence between steering wheel rotational vibration and sound using stimuli from different automobile operating conditions.
Giacomin, J, Ajovalasit, M
core +8 more sources
Journal of Sensors, Volume 2022, Issue 1, 2022., 2022 This study presented an empirical correlation to estimate the drilling rate of penetration (ROP) while drilling into a sandstone formation. The equation developed in this study was based on the artificial neural networks (ANN) which was learned to assess the ROP from the drilling mechanical parameters.
Ahmad Al-AbdulJabbar +4 more
wiley +1 more source
Analysis on the lateral vibration of drill string by mass effect of drilling fluid [PDF]
Mechanical Sciences, 2019 It is well known that the influence of the internal and external drilling fluid on the lateral vibration characteristics of drillstring cannot be ignored. In this paper, experiment apparatus for simulating drillstring vibration was established. Hammering
C. Yang +4 more
doaj +1 more source
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 High‐frequency measurements can provide much more new insights for drillstring dynamics compared to traditional instruments, leading to a new realm of understanding of drillstring behaviors in great detail than before. In this paper, data acquisition tools with high‐frequency sample rates and the data processing are introduced.
Lixin Li +7 more
wiley +1 more source
Drillstring Oscillations: The Influence of Fluid Loading and Stabilizer Effects
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 Drillstring vibrations can be undesirable for drilling operations. Here, attention is focused on vibrations of the upper portion of a drillstring as these vibrations can cause drillpipe wear and casing wear. A reduced‐order model is developed to study the motions of a drillstring by taking fluid loading and stabilizer effects into account.
Yongsheng Liu +5 more
wiley +1 more source
IEEE Access, 2023 A detailed methodology to develop a digital twin has many useful applications in the era of technology 4.0. This study provides a framework to develop a digital twin for vibration prediction and fatigue life prognosis of a vertical oil well drillstring ...
Mihiran Galagedarage Don, Geoff Rideout
doaj +1 more source
Experimental Study on Axial Impact Mitigating Stick‐Slip Vibration with a PDC Bit
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 Stick‐slip vibration reduces the drilling rate of penetration, causes early wear of bits, and threatens the safety of downhole tools. Therefore, it is necessary to study suppression methods of stick‐slip vibration to achieve efficient and safe drilling.
Yong Wang +8 more
wiley +1 more source
Fractional-order controllers for stick-slip vibration mitigation in oil well drill-strings
Journal of Low Frequency Noise, Vibration and Active Control, 2021 Drillstring–borehole interaction can produce severely damaging vibrations. An example is stick–slip vibration, which negatively affects drilling performance, tool integrity and completion time, and costs.
Massinissa Derbal +4 more
doaj +1 more source
Dynamic Reliability Analysis of Rotary Steering Drilling System [PDF]
Mechanical Sciences, 2019 Vibration and high shock are major factors in the failure of downhole tools. It is important to study the causes of vibration and shock formation to prevent failure of the drillstring and bottom hole assembly (BHA). At present, it is generally recognized
L. Huang +9 more
doaj +1 more source