Hole-cleaning performance in non-vertical wellbores: A review of influences, models, drilling fluid types, and real-time applications
The efficient removal of cuttings from all types of wellbore poses a substantial challenge.
Hole cleaning (HC) depends on the physicochemical interplay between wellbore formations …
Hole cleaning (HC) depends on the physicochemical interplay between wellbore formations …
[HTML][HTML] A method for applying the use of a smart 4 controller for the assessment of drill string bottom-part vibrations and shock loads
Optimization of drilling processes for oil and gas and geothermal wells requires the effective
use of mechanical energy for the destruction of rocks. When constructing a well, an …
use of mechanical energy for the destruction of rocks. When constructing a well, an …
Hybrid backstep** sliding mode controller for stick–slip vibrations mitigation in rotary drilling systems
The main objective of this paper is to suppress the stick–slip vibrations in the drilling system
so that the drill bit can follow the desired nominal angular velocity of the Top Drive in an …
so that the drill bit can follow the desired nominal angular velocity of the Top Drive in an …
An Analytical–Numerical Model for Determining “Drill String–Wellbore” Frictional Interaction Forces
Currently, drilling of directional oil and gas wells under complex technical-technological and
mining-geological conditions requires the use of drill pipes made of various materials. In …
mining-geological conditions requires the use of drill pipes made of various materials. In …
Statistical Process Control Charts Applied to Rock Disintegration Quality Improvement
Featured Application In the presented research, classical control charts were applied to the
technological process of rock disintegration by rotary drilling. The significance of the …
technological process of rock disintegration by rotary drilling. The significance of the …
Stick-slip vibration suppression in drill string using observer-based LQG controller
Hydrocarbon exploration and production activities are guaranteed through various
operations including the drilling process, which is realized by using rotary drilling systems …
operations including the drilling process, which is realized by using rotary drilling systems …
Observer-Based H∞ Controller Design for High Frequency Stick-Slip Vibrations Mitigation in Drill-String of Rotary Drilling Systems
The drilling process is among the most crucial steps in exploration and production activities
in the petroleum industry. It consists of using mechanical mechanisms to crush rocks by the …
in the petroleum industry. It consists of using mechanical mechanisms to crush rocks by the …
Development of Automatic Electric Drive Drilling System for Core Drilling
Z Zhou, Y Hu, B Liu, K Dai, Y Zhang - Applied Sciences, 2023 - mdpi.com
Core drilling has been widely used in mineral exploration with diamond-impregnated drilling
technology. Automation is a critical technology in improving core drilling efficiency and …
technology. Automation is a critical technology in improving core drilling efficiency and …
Modeling of hydrocarbons rotary drilling systems under torsional vibrations: a survey
Modeling of vibrations dynamic during drilling hydrocarbons wells is one of the main
challenge facing drillers. Indeed, in order to design controllers that can eliminate or at least …
challenge facing drillers. Indeed, in order to design controllers that can eliminate or at least …
Decentralized overlap** control design with application to rotary drilling system
The main objective of this paper is the development of overlap** decomposition strategy
for controller design of rotary drilling systems based on the state feedback technique. The …
for controller design of rotary drilling systems based on the state feedback technique. The …