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Yu. D. Muraev
Yu. D. Muraev
National Mineral Resources University (University of Mines)
National Mineral Resources University (University of Mines)

Articles

Oil and gas
  • Date submitted
    2015-08-03
  • Date accepted
    2015-10-06
  • Date published
    2016-02-01

Technical and technological solutions to ensure stability of downhole drilling motors

Article preview

The article shows research analysis of engineering and technological solutions that aimed at improving the efficiency of drilling wells using optimization of dynamic of work downhole drill-ing motors. As the technical solutions that reduce vibration, considered two options of construc-tion of the power section. A first embodiment involves the production of a hollow rotor which can reduce its moment of inertia. The second solution is the production of modular rotor, which are changing the eccentricity (misalignment) of rotating parts of the engine. The research of fluctuations throughout the length of the power section of the working bodies and the spindle of the engine, taking into account changes in its energy characteristics has been con-ducted to ensure stable operation of the engine in a well, identifying optimal loading parameters. Indicators of shaft speed ensuring minimum vibration amplitude of the engine has been Iden-tified. Optimal speed range of the rotor to prevent buckling of the BHA and to sustain its operation is shown to be between 15-20 % of the frequency of the engine at idle. The maximum reduction in speed during the drilling process should not exceed 30 % by conducted research.

How to cite: Dvoinikov M.V., Muraev Y.D. Technical and technological solutions to ensure stability of downhole drilling motors // Journal of Mining Institute. 2016. Vol. 218. p. 198.
Present-day problems of geological exploration and well drilling
  • Date submitted
    2011-09-20
  • Date accepted
    2011-11-27
  • Date published
    2012-03-01

Microphotography of drilling foam as a means of expanding of information content in scientific research

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Some results of research of properties of foams which find  widespread  of application in field of oil, gas and geological prospecting drilling.

How to cite: Muraev Y.D. Microphotography of drilling foam as a means of expanding of information content in scientific research // Journal of Mining Institute. 2012. Vol. 197. p. 75.
Present-day problems of geological exploration and well drilling
  • Date submitted
    2011-09-30
  • Date accepted
    2011-11-29
  • Date published
    2012-03-01

Influence of geological factors on the composition of foam agent for geological prospecting drilling

Article preview

Efficiency and environmental safety of drilling process requires consider of geological conditions of field. The recommendations on  the composition  of reagents for  different geological conditions are given in the article. The results of experimental work are given.

How to cite: Muraev Y.D. Influence of geological factors on the composition of foam agent for geological prospecting drilling // Journal of Mining Institute. 2012. Vol. 197. p. 79.
Applied and fundamental research in physics and mathematics
  • Date submitted
    2009-09-01
  • Date accepted
    2009-11-19
  • Date published
    2010-03-01

Structural features of gas-liquid mixture

Article preview

the effectiveness of the foam flush drilling connects of foam ability to reduce the friction force and drilling shaft oscillation. The main factors are foam viscosity and foam bubble’s diameter.

How to cite: Muraev Y.D., Shkryabin V.L., Guseinov S.Z. Structural features of gas-liquid mixture // Journal of Mining Institute. 2010. Vol. 187. p. 79-82.
Diagnostics and control of technical systems and their elements. New technologie
  • Date submitted
    2007-11-24
  • Date accepted
    2008-01-05
  • Date published
    2008-05-01

Well damper

Article preview

It is necessary to decrease the vibration of bits to increase the productivity of drilling. This hole damper decrease the vibration when we use the foam liquids.

How to cite: Muraev Y.D., Kuzmin M.I. Well damper // Journal of Mining Institute. 2008. Vol. 178. p. 188-190.
Without section
  • Date submitted
    1981-09-21
  • Date accepted
    1981-11-23
  • Date published
    1982-03-01

Основы теории и расчет давления при движении пены в скважине

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Пена - одна из разновидностей промывочных агентов, особенно пер­спективна при бурении скважин в осложненных условиях. Практическое ос­воение этого аффективного технологического средства требует обоснован­ного расчетами выбора насосного и компрессорного оборудования, проекти­рования рациональных режимов циркуляции ...

How to cite: Kudryashov B.B., Muraev Y.D., Klimov V.Y. // Journal of Mining Institute. 1982. Vol. 93. p. 3.
Without section
  • Date submitted
    1981-09-27
  • Date accepted
    1981-11-01
  • Date published
    1982-03-01

Применение пенных агентов при алмазном бурении

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Специфические свойства пей - низкая плотность, малое эрозионное действие на стенки скважины, повышенная по сравнении с водой выносная способность и т.п. ...

How to cite: Gorshkov L.K., Muraev Y.D., Vasilev V.I. // Journal of Mining Institute. 1982. Vol. 93. p. 28.