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
Kick-Off Point (KOP) and End of Buildup (EOB) Data Analysis in Trajectory Design [PDF]
, 2017 Well X is a development well which is directionally drilled. Directional drilling is choosen because the coordinate target of Well X is above the buffer zone.
Adrian, R. (Rafhie) +2 more
core +3 more sources
Drillstring Washout Diagnosis Using Friction Estimation and Statistical Change Detection [PDF]
, 2015 In oil and gas drilling, corrosion or tensile stress can give small holes in the drillstring, which can cause leakage and prevent sufficient flow of drilling fluid. If such \emph{washout} remains undetected and develops, the consequence can be a complete
Blanke, Mogens +3 more
core +3 more sources
The vibration modal characteristics of drillstring in compound drilling
Journal of Physics: Conference Series, 2022 The compound drilling plays an important role in improving borehole quality. The modal analysis model of drillstring is established to analyze the modal of longitudinal vibration, lateral vibration and torsional vibration, respectively.
Heyi Yuan +4 more
semanticscholar +1 more source
Nonlinear Dynamic Characteristic Analysis of a Landing String in Deepwater Riserless Drilling
Shock and Vibration, Volume 2018, Issue 1, 2018., 2018 The landing string is an important component of deepwater riserless drilling systems. Determination of the dynamic characteristics of the landing string plays an essential role in its design for ensuring its safe operation. In this paper, a dynamic model is developed to investigate the dynamic response characteristics of a landing string, where a ...
Jun Liu +5 more
wiley +1 more source
Ultrasonic Planetary Core Drill: Overview and Results from Field Trial [PDF]
, 2017 In the effort to explore the subsurface of terrestrial bodies, we seek to obtain better samples from ever greater depths. Many organisations are working towards technologies that can achieve this goal whilst ensuring compatibility with the likely ...
Harkness, Patrick +4 more
core
Analysis of Nonlinear Vibration of Hard Coating Thin Plate by Finite Element Iteration Method
Shock and Vibration, Volume 2014, Issue 1, 2014., 2014 This paper studies nonlinear vibration mechanism of hard coating thin plate based on macroscopic vibration theory and proposes finite element iteration method (FEIM) to theoretically calculate its nature frequency and vibration response. First of all, strain dependent mechanical property of hard coating is briefly introduced and polynomial method is ...
Hui Li +3 more
wiley +1 more source
Impact Force Magnitude Analysis of an Impact Pendulum Suspended in a Vibrating Structure
Shock and Vibration, Volume 19, Issue 6, Page 1359-1372, 2012., 2012 The purpose of this work is the experimental investigation and the mathematical modeling of the impact force behavior in a vibro‐impact system, where an impact pendulum is mounted on a cart that moves with a prescribed displacement. The dynamics of the system will be evaluated considering different excitation frequencies and changing the impact gap ...
R.R. Aguiar, H.I. Weber
wiley +1 more source
The Motion Decoupled Delivery System: A New Deployment System for Downhole Tools is Tested at the New Jersey Margin [PDF]
Scientific Drilling, 2013 The Motion Decoupled Hydraulic Delivery System (MDHDS) is a new downhole tool delivery system that is deployed by wireline and uses drillstring pressure to advance a penetrometer (or other downhole tool) into the formation at the bottom of offshore ...
P. B. Flemings +10 more
doaj +1 more source
Torsional vibrations of helically buckled drill-strings : Experiments and FE modelling [PDF]
, 2016 Acknowledgements The authors wish to thank Dr. Joseph Paez Chavez for his help in experimental work and acknowledge the financial support of BG Group plc.Peer reviewedPublisher ...
Hamaneh, V. V. +2 more
core +1 more source