منابع مشابه
L1 Adaptive Control for Directional Drilling Systems
This paper considers downhole directional drilling systems in the presence of unexpected variations in steering force, input delays, measurement noise and measurement delays, and explores the application of L1 adaptive controller for the trajectory control problem. The Explicit Force, Finitely Sharp, Zero Mass (EFFSZM) model is used for the steering system, in which spatial delays, modeling ina...
متن کاملHorizontal Directional Drilling-Length Detection Technology While Drilling Based on Bi-Electro-Magnetic Sensing
The drilling length is an important parameter in the process of horizontal directional drilling (HDD) exploration and recovery, but there has been a lack of accurate, automatically obtained statistics regarding this parameter. Herein, a technique for real-time HDD length detection and a management system based on the electromagnetic detection method with a microprocessor and two magnetoresistiv...
متن کاملMonte Carlo Simulation of Bottomhole Coordinates in Directional Drilling
ENGLISH/ANGLAIS] Affiliations: Department of Mechanical Engineering, University of Nigeria, Nsukka, NIGERIA Address for Correspondence/ Adresse pour la Correspondanc e: ekeochaj@yahoo. com Accepted/Accepté : December, 2013 Citation: Ekeocha RJO. Monte Carlo Simulation of Bottomhole Coordinates in Directional Drilling. World Journal of Engineering and Pure and Applied Sciences 2013;3(1): Increas...
متن کاملRotary Steerable Directional Drilling Stick/Slip Mitigation Control
This paper details the online-identification-based adaptive design of a stick/slip minimization algorithm and top-drive servo control for Rotary Steerable System (RSS) directional drilling tools. Stick/slip in this context refers to the downhole angular velocity variation of the bit about a nominal value. The basic pole placement controller designs are SISO linear but recursively evaluated base...
متن کاملOutput-feedback inclination control of directional drilling systems
Directional drilling techniques, based on rotary steerable systems, are used to generate complex curved boreholes. In practice, however, boreholes drilled with such systems often show instability-induced borehole spiraling, which negatively affects the borehole quality and increases drag losses while drilling. As a basis for controller synthesis, we present a directional drilling model in terms...
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ژورنال
عنوان ژورنال: Journal of the Japanese Association for Petroleum Technology
سال: 1949
ISSN: 1881-4131,0370-9868
DOI: 10.3720/japt.14.100