Results 251 to 260 of about 62,218 (321)

Research on the prediction of drag and torque based on BP algorithm

Third International Seminar on Artificial Intelligence, Networking, and Information Technology, 2023
In the current oil fields in China, the horizontal well technology with a long horizontal interval has gradually become the core technology to develop conventional oil and gas reservoirs, and the accurate determination of the drag and torque of the drill
Wenqi Wu, Sen Fan, Lulu Hua, X. Wang
semanticscholar   +1 more source

Advanced Torque and Drag Considerations in Extended-Reach Wells

IADC/SPE Drilling Conference, 1996
Abstract Excessive torque and drag can be critical limitations in Extended-Reach Drilling (ERD). This paper details issues related to torque and drag prediction, monitoring, and management in ERD wells. Results are presented from sensitivity analyses of extreme ERD trajectories such as 7 to 8 km departures at 1600 m TVD.
M. L. Payne, Fereidoun Abbassian
  +4 more sources

Dynamic Torque and Drag Model

SPE Annual Technical Conference and Exhibition, 2020
Abstract It is generally acceptable to use soft string model for simple wells and stiff string for high dogleg wells. But these models fail to reveal the complex mechanical behaviors of tubular string in tripping in, tripping out, and sliding drilling operations with time as some segments of tubular string may move upward and downward ...
Robello Samuel, Wenjun Huang
openaire   +1 more source

Optimization Design of Oil Groove Shape on the Surface of Friction Plate in High-Speed Wet Clutch Aimed at Minimizing Drag Torque

Journal of tribology, 2023
The wet clutch, a crucial component of the vehicle transmission system, experiences high-frequency impact and friction between the friction plate and the steel plate under high-speed separation conditions.
Lin Zhang, Yuansheng Zhang, Wei Chao, Yunbing Yan   +3 more
semanticscholar   +1 more source

Dynamic Torque and Drag Model Coupled With Transient Hydraulic

Volume 9: Offshore Geotechnics; Petroleum Technology, 2023
Abstract A drill-string is an extremely slender mechanical structure and consequently it can oscillate very easily. Drill-string vibrations during drilling operations is the source of many drilling dysfunctions such as decreased drilling performance, damage to downhole equipment, or formation instabilities.
Eric Cayeux, Espen Jettestuen, Adrian Ambrus   +2 more
openaire   +1 more source

Theoretical and experimental study on drag torque of wet clutch considering surface tension and shrinkage of oil film

Proceedings of the Institution of mechanical engineers. Part D, journal of automobile engineering, 2022
The drag torque produced by the viscous shearing action of lubricating oil is an important component of the power loss of wet clutches. Studying the prediction model and its influencing factors will provide important theoretical support for reducing the ...
Chunjie Xu, Fangwei Xie, Xinjian Guo, R. Agarwal, Xiumei Liu, Kewei He, Zhibao Li   +6 more
semanticscholar   +1 more source

Torque and Drag Modeling Advanced Techniques and Troubleshooting

SPE Annual Technical Conference and Exhibition, 2012
Abstract Extreme torque and drag (T&D), especially when unplanned, is a primary limiter to the reach of horizontal and extended-reach wells. Many engineers use T&D software models without a thorough understanding of how the input affects the calculations in the program.
John McCormick, Gefei Liu
openaire   +1 more source

Torque and drag field applications in horizontal wells

International Journal of Oil, Gas and Coal Technology, 2017
The industry of drilling for oil, gas geothermal, and storage purposes necessitates construction of challenging wells in recent applications. Challenging wells are required to be designed prior to the drilling to selection of the equipment to be utilised while drilling.
Tuna Eren, Burak Kagan Caglayan, Mustafa Verşan Kök   +2 more
openaire   +1 more source

Torque and Drag Modeling for Horizontal Openhole Completions

SPE Annual Technical Conference and Exhibition, 2005
Proposal Since horizontal openhole sections are now being drilled to lengths that exceed 20,000 ft, placement of the completion string (CS) to planned total depth (TD) may not be possible under a proposed drilling plan. During the early years of horizontal-well construction, the hanging weight of the completion string was usually ...
R. Rezvani, B. Techentien
openaire   +1 more source

Torque and Drag in Directional Wells-Prediction and Measurement

Journal of Petroleum Technology, 1984
Summary A computer model has been developed to predict drillstring torque and drag, and a versatile rotary torque meter has been built to use in calibrating the model. The principle of the predictive model is that torque and drag forces in a directional wellbore are primarily caused by sliding friction.
C.A. Johancsik, D.B. Friesen, Rapier Dawson   +2 more
openaire   +1 more source