Investigation of coupled axial-lateral-torsional drillstring vibrations using a multi-body dynamics approach. [PDF]
, 2014 Drillstring vibration is a very crucial phenomenon which has a great effect on the drilling process. The drillstring is responsible to transfer rotary motion and energy to the drill bit. Unwanted vibration causes reduction in the rate of penetration (ROP)
Fallahi, Ehsan
core +1 more source
Analysis of the effects of torsional impact tools on drill string stick–slip vibration
Energy Exploration & ExploitationTorsional impactor is widely used in deep and ultra-deep wells because it can suppress stick–slip vibration and increase ROP. As the direct factor affecting torsional impactor effect, it's working parameters study is still not sufficient.
Chaoyi She +5 more
doaj +1 more source
Detecting downhole vibrations through drilling horizontal sections: machine learning study. [PDF]
Sci Rep, 2023 Saadeldin R, Gamal H, Elkatatny S.
europepmc +1 more source
DIAGNOSTIC AND PERFORMANCE ANALYSIS OF DRILLSTRING VIBRATIONS IN ZUBAIR FIELD [PDF]
Romanian Journal of Petroleum & Gas Technology, 2020 In order to improve the drilling performance and prevent the drillstring damage, it is required to reduce the drilling vibrations of wells. Consequently, the main aim of paper is to diagnose and analyze the drilling vibrations for Zubair field wells ...
Hussein Al Gburi +3 more
doaj
Key Technology of Passive Compensation Device Control System
Shiyou jixie, 2020 A DC40/60-Y passive drillstring heave compensation device is developed to reduce the impact of the heave motion of drillstring with waves on the running and working of underwater equipment in deep-sea drilling operation and provide relatively constant ...
Wang Bofang +5 more
doaj
Analysis of Postbuckling Drillstring Vibrations in Rotary Drilling of Extended-Reach Wells
, 2011 One of the most serious concerns of extended-reach drilling is the dynamic behavior of the drillstring and the cleaning of well. Good cleaning requires an increased angular velocity.
Alexander I. Safronov, Vadim S. Tikhonov
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Laboratory scale evaluation of compliant drillstring with PDC bits in geothermal applications
, 2022 Polycrystalline diamond compact (PDC) bits have shown tremendous performance compared to roller cone bits and have gained attraction in deep geothermal drilling applications.
Barnett, Laymon
core
Solution and Analysis of Wellbore Temperature and Pressure Field Coupling Model under Lost Circulation. [PDF]
ACS Omega, 2022 Yang A, Zhu Z, Zhang N, Ye Y.
europepmc +1 more source
A method for optimizing and controlling rocking drillstring–assisted slide drilling
Natural Gas Industry BRocking the drillstring at the surface during slide drilling is a common method for reducing drag when drilling horizontal wells. However, the current methods for determining the parameters for rocking are insufficient, limiting the widespread use of ...
Yabin Zhang +4 more
doaj +1 more source
Thermal Characteristics of Borehole Stability Drilling in Hot Dry Rock. [PDF]
ACS Omega, 2021 Zhu Z, Wang C, Guan Z, Lei W.
europepmc +1 more source