Stick-Slip Vibration Analysis and Drilling Parameter Optimization of Horizontal Well Drill String System [PDF]
Stick⁃slip vibration is one of the main vibration forms in the process of horizontal well drilling, and usually leads to adverse consequences such as reduction of bit cutting efficiency and failure of drilling tools.
Li Wenzhe +5 more
doaj +2 more sources
Nonlinear Self-Excited Vibration Mechanism for Under-Actuated Oil-Well Drilling System with Stick-Slip Vibration [PDF]
Exploration of oil or gas wells is usually carried out by using drilling system. When the kilometers of drilling system is externally disturbed, the drilling system is prone to undesired stick-slip vibration of the drill-string.
doaj +2 more sources
On the stick-slip vibration in the suspension of a freight wagon [PDF]
Damping based on the dry friction is frequently in suspensions of the freight wagons. The paper presents some aspects of vertical vibration of freight wagons. It uses a simple model considering that the vehicle was reduced to a mass suspended on a wheel,
Mazilu Traian, Dinu Vlăduţ Marian
doaj +5 more sources
The inhibition mechanism of ultrasonic vibration on stick-slip phenomenon of sliding friction pair [PDF]
Frictional vibration often occurs during sliding, commonly referred to as the stick-slip phenomenon. It is more likely to occur in the range of the Stribeck curve, where friction and velocity have negative gradient characteristics.
Lingjie Luo +6 more
doaj +2 more sources
Suppression of Drill-String Stick-Slip Vibration [PDF]
We investigate experimentally and numerically suppression of drill-string torsional vibration while drilling by using a sliding mode control. The experiments are conducted on the novel experimental drilling rig developed at the University of Aberdeen [1]
Vaziri Vahid +2 more
doaj +2 more sources
Experimental investigation into friction reduction induced by normal vibration from frequency dependence to unified vibration velocity amplitude [PDF]
Vibration is recognized as an effective method for reducing friction. However, the underlying mechanisms governing friction reduction at different frequencies remains to be investigated.
Jiandong Lu +3 more
doaj +2 more sources
DETECTION OF STICK-SLIP OCCURRENCES THROUGH NEAR FIELD NOISE MEASUREMENTS [PDF]
The present study is concerned with evaluating the pin-on-disk test rig usage and the measurements conducted to recognize the occurrence of the stick-slip phenomenon.
Nadim A. Emira
doaj +2 more sources
Stick-slip vibration generally exists in the process of drilling and construction, and near-horizontal directional drilling in underground coal mines is no exception.
WANG Siyi
doaj +1 more source
Friction-induced stick-slip vibration and its experimental validation [PDF]
Friction is known to cause vibration in many situations and one particular kind of friction-induced vibration is in the form of stick-slip vibration, which is of fundamental significance in science due to its ubiquitous nature.
Huang, B +4 more
core +2 more sources
For the problem of stick-slip vibration caused by hard rock formation in the process of drill bit penetrating in coal mine, and the discrete element method (DEM) was employed to study the rock cutting performance and stick-slip vibration behavior of PDC ...
Jian CHEN +6 more
doaj +1 more source

