Results 201 to 210 of about 4,548 (235)

Engineers’ Trilemma: Use and Limitation of Torque and Drag Models

SPE/IADC International Drilling Conference and Exhibition, 2023
Abstract Different methods to calculate torque and drag have been used by the oil industry for years. Various assumptions are used in formulating these models. Opinions have often varied as to which model is better and whether the assumptions are valid. This paper discusses the trilemma considerations for an engineer 1. Soft string model
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The Benefits of Monitoring Torque & Drag in Real Time

IADC/SPE Asia Pacific Drilling Technology, 2000
Abstract Monitoring Torque and Drag effects in real time has been done for some time now in the oil industry. However, the service is still used only in a small percentage of the total drilling hours and the analyzing techniques used are quite diverse.
Bart Vos, Reiber Frank
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Drag Torque in Disk Brakes: Significance, Measurement and Challenges

SAE International Journal of Commercial Vehicles, 2015
<div class="section abstract"><div class="htmlview paragraph">Drag torque is generated in disk brakes as a result of contact (dynamic friction) between brake disk and brake pads when the braking system is not actuated. Among the negative implications of drag torque are, notably, dispensable additional fuel consumption as well as increased ...
Achim Reich, Angelo Sarda, Martin Semsch
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Analysis of Wet Clutch Drag Torque and Optimization of Drag Torque Reduction Measures

2023
Dongyue Qu, Yunpeng Yun, Dongpeng Zhao
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Flight Dynamics of Boomerangs: Impact of Drag Force and Drag Torque

AIAA AVIATION 2020 FORUM, 2020
Prasad Gudem, Martin Laslett, Gino Carfano, Manuel Schütz, Kyle Holland, Hector Murguia   +5 more
openaire   +1 more source

Torque and Drag-Two Factors in Extended-Reach Drilling

Journal of Petroleum Technology, 1994
Summary 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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A Numerical Simulation for Predicting the Gear Drag Torque

Transactions of the Korean Society of Mechanical Engineers - B, 2020
Jongrak Choi, Nahmkeon Hur
openaire   +1 more source

AIRCRAFT ACCESSORY DRAG TORQUE DURING ENGINE STARTS

2017
<div class="section abstract"> <div class="htmlview paragraph">This SAE Aerospace Information Report (AIR) presents a discussion of drag torques of engine accessories operating at cold temperature. Various conditions of temperature, speed, and acceleration rates are reviewed showing the merits of each method and recommending a standard ...
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Torque and drag field applications in horizontal wells

International Journal of Oil, Gas and Coal Technology, 2017
Tuna Eren, Burak Kagan Caglayan, Mustafa Verşan Kök   +2 more
openaire   +1 more source

Long-Step Steady State Torque and Drag Calculations

IADC/SPE International Drilling Conference and Exhibition
Abstract Recently, several initiatives have been launched to use generative methods for creating an ensemble of planned trajectories when evaluating alternatives for a drilling program. These automatically generated trajectories must be ranked according to their hydromechanical characteristics. Given that hundreds of trajectories need
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