Results 31 to 40 of about 801 (206)
Drilling String Vibration: Modelling and Simulation
Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering, 2018 The offshore industry has a significant impact on the global economy and it is expected to grow over the next 4 years. A crucial part of an offshore structure is the drill string. Drill strings can be seriously damaged by vibration during drilling operations. The control of vibrations in drill strings is essential.
Amat, Sergio +2 more
openaire +2 more sources
Vibration Characteristics Study of Drill String Based on Rotary-impact Drilling Tool in Horizontal Well [PDF]
Journal of Petroleum Science and Technology, 2021 To address the problems of large drilling friction and low rate of penetration (ROP) in the drilling process of horizontal well, the vibration characteristics research of drill string is conducted on the basis of rotary-impact.
Jialin Tian +3 more
doaj +1 more source
Stress Analysis on Drilling String Vibration in Gas Drilling
Energy Procedia, 2012 AbstractUsing the finite element method, attempting to solve the serious drilling tools failure in gas drilling, this paper modelled the transient response of string vibration, and worked out the distribution regularity of the transient stress at two different drilling states: gas and mud drilling.
Jianhong, Fu +6 more
openaire +1 more source
A REVIEW DYNAMIC VIBRATION ON DRILL STRING IN DRILLING OPERATION
Sebatik, 2019 For decades, researchers have investigated the phenomenon of vibrations in drilling activities. One of the interesting things is the vibration in the drillstring. Vibration might be caused by Interfere with each other between the drilling mud and drilling string, contact forces between the drillstring and wellbore, and interfere with each other between
Hasan Basri, Afriansyah Afriansyah
openaire +2 more sources
Shiyou jixie, 2022 In deepwater riserless drilling system,drill string in seawater is affected by external ocean load,torque of top rotary table and bottom bit-formation force,so it is prone to vibrate in the three directions of longitudinal,transverse,and torsional,making
Liu Jun +3 more
doaj
Analysis of Drill String Coupled Vibration and Drilling Fluid Pressure in Downhole Section
Shiyou jixie, 2021 To address the problem of nonlinear coupled vibration of the drill string in the axial, lateral and torsional direction in the downhole section of deepwater drilling, a mathematical model of nonlinear coupled vibration of the drill string in the downhole
Liu Jing +5 more
doaj
On physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations
Petroleum, 2020 This paper introduces physical models of drill string whirling and torsional vibrations and analyses the physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations: “V.I. Gulyayev, L.V.
Zifeng Li, Chaoyue Zhang, Guangming Song
doaj +1 more source
Vibration wave characteristics in Conventional and Periodic Drill string models [PDF]
, 2016 Drill string models are of two major types- Conventional and Periodic. Conventional drill string models are widely used due to their simplicity in manufacturing and dynamics analysis.
Sassi, Sadok +3 more
core +1 more source
Vibration and Control Characteristics of Downhole Drill String System
Shiyou jixie, 2022 Stick slip vibration seriously affects the life of drill string system,prolongs the drilling cycle,and endangers the safety of staff.In order to solve the problem of stick slip vibration caused by linear torque load and friction load in drilling ...
Ma Sunan +6 more
doaj
Study on Drill String Stick-slip Vibration Pattern Under Bit-Rock Interaction
Shiyou jixie, 2023 Stick-slip vibration leads to high-frequency shear stress on drill string and premature fatigue of drill string.Therefor,the torsional vibration model of drill string system considering bit-rock interaction was built by coupling the bit-rock interaction ...
Xing Xuesong +4 more
doaj