The Experts below are selected from a list of 9387 Experts worldwide ranked by ideXlab platform
Wu Wan-ron - One of the best experts on this subject based on the ideXlab platform.
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Study on Feeding System of Hydraulic Drilling Rig Based on High Speed on-off Valve
Computer Simulation, 2014Co-Authors: Wu Wan-ronAbstract:Feeding pressure of hydraulic Drilling Rig control is a critical technology of Drilling quality during the Drilling process.In order to control feeding pressure accurately during hydraulic Drilling Rig's working,a new feeding system was proposed on the basis of the cartridge valve controlled by high-speed on / off valve.Feeding pressure was exported proportionally via control of high-speed on / off valve's Pulse Width Modulation(PWM) input signal.Its simulation model was built using AMESim software,to select appropriate the frequency of PWM control signal on the basis of the analysis of characteristics of the cartridge valve controlled by high-speed on / off valve,and to analyze the feeding system's response to commanded pressure signal.The analysis results show that the feeding pressure can be regulated proportionally and that the control performance of the feeding pressure can be improved by increasing moderately the frequency of PWM signal,which provides a reliable reference for the further optimization of hydraulic system of Drilling Rig.
Jinjun Liu - One of the best experts on this subject based on the ideXlab platform.
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Study and design of power quality control for oilfield Drilling Rig electrical system
2011 IEEE Energy Conversion Congress and Exposition, 2011Co-Authors: Hao Yi, Fang Zhuo, Xin'xin Sun, Jinjun LiuAbstract:This paper focuses on a power quality improvement project for an oilfield Drilling Rig electrical system. For economic reason, an active current compensator and a passive current compensator are designed against features of power system in oilfield Drilling Rig. And then the current detection point arrangement of this hybrid system is taken into consideration to build the whole system much more effective and reliable. Now the compensators are working well in application field, and the power quality of system is greatly improved.
Li Yao-jie - One of the best experts on this subject based on the ideXlab platform.
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Application of PLC in oil Drilling Rig
Electric Drive Automation, 2009Co-Authors: Li Yao-jieAbstract:By the application of electric drive Drilling Rig in oil field,PLC become the core of the control,the design method of system integration by using SIMATIC S7-300 is also given.
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Current status and development of oil Drilling-Rig control system
Electrical Drive Automation, 2005Co-Authors: Li Yao-jieAbstract:The current status of oil Drilling-Rig control system is preserted,the developing tendency and developing direction of oil Drilling-Rig control system are also given.
Khadisov Magomed - One of the best experts on this subject based on the ideXlab platform.
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Directional Drilling: Trajectory Design and Position Uncertainty Study for a Laboratory Drilling Rig.
University of Stavanger Norway, 2020Co-Authors: Khadisov MagomedAbstract:Master's thesis in petroleum engineering.This thesis investigates how trajectory optimisation and position uncertainty calcu- lations can be performed on a laboratory Drilling Rig. The improvements made are to be used on the Drilling Rig designed and manufactured by UiS Drillbotics team, for the international Drillbotics competition. This year's competition presented a new set of challenges, including a pre-planned trajectory, hitting target points before exiting the well and an integrated error model. The requirements are presented in detail in the guidelines provided by Drilling Systems Automation Technical Section (DSATS) committee. The models presented in this thesis are intended to advance the current system, where automated optimisation of trajectories and position uncertainty calculations can easily be performed and visualised. Using Bezier curves for trajectory optimisa- tion and the ISCWSA error model, these calculations are presented and tested for both fi eld cases, and generated trajectories with the dimensions of the laboratory Drilling Rig. The solutions presented offers a possibility to intuitively visualise the results to the driller and observers. The trajectory optimisation is a process conducted before any Drilling is initiated, and imported to the main GUI for comparison between planned trajectory and drilled trajectory. The position uncertainty calculations are exible, and can be speci cally con gured for different sensor packages and con dence lev- els. The uncertainty calculations are plotted together with the trajectory, which enables the driller and system to identify deviations and reconsider the trajectory if necessary
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Directional Drilling: Trajectory Design and Position Uncertainty Study for a Laboratory Drilling Rig.
University of Stavanger Norway, 2020Co-Authors: Khadisov MagomedAbstract:This thesis investigates how trajectory optimisation and position uncertainty calcu- lations can be performed on a laboratory Drilling Rig. The improvements made are to be used on the Drilling Rig designed and manufactured by UiS Drillbotics team, for the international Drillbotics competition. This year's competition presented a new set of challenges, including a pre-planned trajectory, hitting target points before exiting the well and an integrated error model. The requirements are presented in detail in the guidelines provided by Drilling Systems Automation Technical Section (DSATS) committee. The models presented in this thesis are intended to advance the current system, where automated optimisation of trajectories and position uncertainty calculations can easily be performed and visualised. Using Bezier curves for trajectory optimisa- tion and the ISCWSA error model, these calculations are presented and tested for both fi eld cases, and generated trajectories with the dimensions of the laboratory Drilling Rig. The solutions presented offers a possibility to intuitively visualise the results to the driller and observers. The trajectory optimisation is a process conducted before any Drilling is initiated, and imported to the main GUI for comparison between planned trajectory and drilled trajectory. The position uncertainty calculations are exible, and can be speci cally con gured for different sensor packages and con dence lev- els. The uncertainty calculations are plotted together with the trajectory, which enables the driller and system to identify deviations and reconsider the trajectory if necessary
Lujun Zhang - One of the best experts on this subject based on the ideXlab platform.
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an energy saving oil Drilling Rig for recovering potential energy and decreasing motor power
Energy Conversion and Management, 2011Co-Authors: Lujun ZhangAbstract:An energy-saving oil Drilling Rig is researched. A large accumulator is adopted in this Rig to store the energy of the motor during the auxiliary time of lifting the drill stem and the potential energy of the drill stem when lowered. The equipped power of this Rig decreases remarkably compared with the conventional Drilling Rig, and this Rig can also recover and reuse the potential energy of the drill stem. Therefore, this Rig owns remarkable energy-saving effect compared with the conventional Drilling Rig, and the energy-saving effect of the energy-saving oil Drilling Rig is also verified by the field tests. The mathematical model of the energy-saving oil Drilling Rig lowering the drill stem was derived and simulation analysis was conducted. Through simulation the curves of the drill stem lowering velocity and lowering displacement with time were obtained, and some conclusions were reached: (1) the heavier the drill stem lowered, the higher the lowering velocity is, and the shorter the lowering time is; (2) the smaller the displacement of the variable pump-motor, the higher the lowering velocity is, and the shorter the lowering time is.
