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Torque and Drag Modeling for Horizontal Openhole Completions
Journal of Petroleum Technology, 2006This article, written by Technology Editor Dennis Denney, contains highlights of paper SPE 97079, "Torque and Drag Modeling for Horizontal Openhole Completions," by R. Rezvani, Halliburton/Sperry Sun, and B. Techentien, Halliburton Energy Services Inc., prepared for the 2005 SPE Annual Technical Conference and Exhibition, Dallas, 9–12 October.
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Quantifying Tortuosities by Friction Factors in Torque and Drag Model
SPE Annual Technical Conference and Exhibition, 2002Abstract Tortuosity occurs when a well deviates from a straight hole. The most commonly known tortuosity is the local dogleg severity variation associated with the use of steerable motors in "slide/drill/slide" drilling. However, there is a tortuosity that exists in many wells, which the authors will refer to as "micro-tortuosity" in ...
Tom Gaynor +3 more
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Calculation and Analysis on Drag Torque of the Wet Clutch
Applied Mechanics and Materials, 2015In order to study the drag torque characteristics of wet clutch, the drag torque with no groove friction plates and with radial groove friction plates were analysed separately, and the influence factors of the drag torque such as the lubricating oil temperature, the depth of the groove, the average gap between the friction plates were also discussed ...
Li Ying Miao +3 more
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Digital Transformation Enables Automated Real-Time Torque-and-Drag Modeling
Journal of Petroleum Technology, 2021This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 199670, “Digital Transformation Strategy Enables Automated Real-Time Torque-and-Drag Modeling,” by Dingzhou Cao, Occidental Petroleum; Don Hender, SPE, IPCOS; and Sam Ariabod, Apex Systems, et al., prepared for the 2020 IADC/SPE International Drilling ...
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Torque and Drag-Two Factors in Extended-Reach Drilling
Journal of Petroleum Technology, 1994Summary This paper addresses the various aspects of torque and drag problems encountered in drilling extended-reach wells. It discusses how to use torque and drag calculations and measurements to plan long-reach well profiles, to execute drilling operations that minimize torque and drag effects, to monitor hole ...
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IEEE transactions on industrial electronics (1982. Print), 2019
Varieties of loss should be optimized to be as little as possible for the stability of the permanent magnet in a high-speed magnetic levitated permanent magnet synchronous motor (HSMLPMSM) rotor and ensure the high efficiency and low temperature of the ...
X. Liu, Gang Liu, Bangcheng Han
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Varieties of loss should be optimized to be as little as possible for the stability of the permanent magnet in a high-speed magnetic levitated permanent magnet synchronous motor (HSMLPMSM) rotor and ensure the high efficiency and low temperature of the ...
X. Liu, Gang Liu, Bangcheng Han
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Hydrodynamic force and torque models for cylindrical particles in a wide range of aspect ratios
The Physics of FluidsDuring the pneumatic conveyance of biomass in a coal-fired power station boiler, biomass particles have cylindrical shapes with different aspect ratios. They move through the fluid at any angle and rotate strongly.
Jingliang Wang +8 more
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Flight Dynamics of Boomerangs: Impact of Drag Force and Drag Torque
AIAA AVIATION 2020 FORUM, 2020Prasad Gudem +5 more
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Effect of Steerable BHA on Drag and Torque In Wells
European Petroleum Conference, 1990Abstract Steerable bottom hole assemblies are often used when drilling deviated wells. Planning of such deviated wells often include studies of torque and drag calculations for the planned well-path and BHA's in order to have a fairly good idea of friction and torque to be encountered when drilling.
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Analysis of Wet Clutch Drag Torque and Optimization of Drag Torque Reduction Measures
2023Dongyue Qu, Yunpeng Yun, Dongpeng Zhao
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