Results 41 to 50 of about 9,449 (231)
Research on a Model of Nonlinear Coupled-vibration of Directional Well Drill String [PDF]
Drill string vibrations are inevitable movement patterns during drilling process, the drill string vibrations form including longitudinal, lateral and torsional are recognized by most scholars.
BI, Xueliang +5 more
core +2 more sources
Space weather effects on drilling accuracy in the North Sea [PDF]
The oil industry uses geomagnetic field information to aid directional drilling operations when drilling for oil and gas offshore. These operations involve continuous monitoring of the azimuth and inclination of the well path to ensure the target is ...
Allen, W. +6 more
core +5 more sources
The oil and gas resources stored in deep strata are an important replacement field of the petroleum industry. Accelerating the exploration and development of deep oil and gas is of great significance to the security of energy strategy.
Yongwang Liu +3 more
doaj +1 more source
A REVIEW DYNAMIC VIBRATION ON DRILL STRING IN DRILLING OPERATION
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
Analysis of vibration efficiency of drill string using the theory of random vibrations [PDF]
The paper presents the main results of the research work related to the development of theoretical and experimental methods for assessment of vibration strength level of the drill string components using probability theory.
Hohol, V. I. +2 more
core
Analysis of longitudinal, torsional and bending vibrations of drill string [PDF]
The paper considers longitudinal, torsional and bending vibrations of the drill string that occur during the bottom-hole deepening. The equations are presented that show the possibility of applying vibration velocity to evaluate the strength and ...
Hohol, V. I. +2 more
core
Analysis of Drill Pipe Failure Mechanism in SHYB-583 Well in Saudi Arabia [PDF]
Aiming at the problem of drill pipe washout in the SHYB583 well in Saudi Arabia, the failure mechanism of drill rod is studied by analyzing the physical and chemical properties of thickened transition zone, stress analysis of transition zone under the ...
CHEN, Hongxia
core +1 more source
Random Fatigue Analysis of Drill-Strings in Frequency Domain
Predicting fatigue damage induced by vibrations is of benefit to oil and gas industry. In this paper a spectral method is developed to estimate the damage of vibration, including both deterministic and random vibration, on the fatigue life of ...
Zheng JiaHao, Yang Jianming, Yang Ping
doaj +1 more source
Modeling and Analysis of Drill String–Casing Collision under the Influence of Inviscid Fluid Forces
The current study aims to study the drill string–casing system operating in an inviscid fluid under imbalanced and rubbing damage types. The Navier–Stokes equations were linearized to establish the hydrodynamic forces surrounding the drill string and ...
Bernard Xavier Tchomeni Kouejou +2 more
doaj +1 more source
Аналіз вібраційної міцності бурильної колони з використанням теорії випадкових коливань [PDF]
У статті викладено основні результати науково-дослідної роботи, пов’язаної з розробкою теоретичних і експериментальних методів оцінки рівня вібраційної міцності елементів бурильної колони із застосуванням теорії ймовірності.
Гоголь, В. І. +2 more
core

