Development of Mathematical Model for Controlling Drilling Parameters with Screw Downhole Motor

Dvoynikov, Mikhail; Kunshin, Andrey; Blinov, P. A.; Morozov, V. A.

doi:10.5829/ije.2020.33.07a.30

Cited by 4 publications

(3 citation statements)

References 17 publications

(29 reference statements)

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“…The performed computer simulation of drilling modes confirmed the possibility of the stick-slip effect occurrence, accompanied by high-frequency vibrations during bit stops, during which it is possible to change the direction of rotation of the bit, its accelerated wear and unscrewing of the drilling tool. The model can be used as a base for further improvement of the control of the rotary [43][44][45] and other [46][47][48][49] drilling methods.…”

Section: Discussionmentioning

confidence: 99%

A complex model of a drilling rig rotor with adjustable electric drive

Ershov

Komkov

Feoktistov

2023

PMI

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A modified mathematical model of an asynchronous electric drive of the rotor – a drill string – a bit – a rock is considered and implemented, which develops and generalizes the results of previously performed studies. The model includes the following subsystems: a model of an asynchronous drive with vector control; a model of formation of the resistance moment at the bottom of the bit, taking into account the peculiarities of the interaction between the bit and the rock; a model of a multi-mass mechanical part that takes into account the deformation of the drill string; subsystem for the drilling rig energy-technological parameters formation. The integrated model makes it possible to calculate and evaluate the selected drilling modes, taking into account their electro-mechanical, energy and technological efficiency and the dynamics of drilling processes. The performed computer simulation of drilling modes confirmed the possibility of a stick-slip effect accompanied by high-frequency vibrations during bit stops, which may change the direction of rotation of the bit, its accelerated wear and unscrewing of the drilling tool. Long bit stops lead to a significant decrease in the average bit rotation speed, which can explain the decrease in the ROP and increase in energy consumption when drilling in the zone of unstable bit rotation. The model can be used as a base for further improvement of rotary drilling control systems.

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Section: Discussionmentioning

confidence: 99%

A complex model of a drilling rig rotor with adjustable electric drive

Ershov

Komkov

Feoktistov

2023

PMI

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“…Since the PDM refers to volumetric hydraulic machines, its main parameter, which determines the characteristics and the main technical indicators, is the working volume [22,23].…”

Section: Calculation Of Geometric Parameters Of Alternative Ps Variantsmentioning

confidence: 99%

Optimization of the Configuration of the Power Sections of Special Small-Sized Positive Displacement Motors for Deep-Penetrating Perforation Using the Technical System “Perfobore”

Liagov¹,

Лягов

Liagova

2021

Applied Sciences

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Innovative technologies for the secondary drilling of productive reservoirs, based on the multihole drilling deeply remoted from the wellbore and with controlled trajectories, to overcome the contamination of the pay zone, and with the ability to carry out various geological and technological wellworks many times over, can significantly increase the efficiency of the development of old and marginal wells. To implement such tasks, it is necessary to use special technological drilling equipment, one such technical system (TS) is the Perfobore system, which uses a modular construction. The methodology allows to choose an optimal variant for the power sections with a high-torque, small-sized positive displacement motor PDM, previously developed by specialists at the Perfobore company. This made it possible to design universal sectional motors with diameters of 43 to 54 mm with improved characteristics compared to serial PDMs. The production of prototypes of multi-section PDMs and their successful bench and then field tests (FT), from 2018 to 2020, in the Uralopovolzhskaya and West Siberian oil and gas provinces, as part of the TS Perfobore, proved the correctness of the chosen technical strategy.

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“…Researchers use mathematical models to analyze various objects [5][6][7]. A lot of mathematical and computational studies for PD are presented.…”

Section: Introductionmentioning

confidence: 99%

An Improved Modeling of Parkinson’s Tremor and Investigation of Some Approaches to Remove this Symptom

Ghoreishian

Pooyan

2021

IJE

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Development of Mathematical Model for Controlling Drilling Parameters with Screw Downhole Motor

Cited by 4 publications

References 17 publications

A complex model of a drilling rig rotor with adjustable electric drive

A complex model of a drilling rig rotor with adjustable electric drive

Optimization of the Configuration of the Power Sections of Special Small-Sized Positive Displacement Motors for Deep-Penetrating Perforation Using the Technical System “Perfobore”

An Improved Modeling of Parkinson’s Tremor and Investigation of Some Approaches to Remove this Symptom

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