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A. A. Yakovlev
A. A. Yakovlev
National Mineral Resources University (Mining University)
National Mineral Resources University (Mining University)

Articles

Oil and gas
  • Date submitted
    2019-03-25
  • Date accepted
    2019-05-14
  • Date published
    2019-08-25

Increase in Intake Capacity by Dynamic Operation of Injection Wells

Article preview

The method of pumping water to compensate for fluid withdrawals from an oil formation in order to maintain formation pressure has long established itself as an effective technology and is widely used at oil and gas fields. At the same time, field operator is often faced with the problem of reduction in the intake capacity of injection wells, which may be caused by various complications arising in the near-wellbore area due to a violation of water treatment technology or other factors. This problem is typical for reservoirs with low permeability values, which leads to a decrease in the performance indicators of the formation pressure maintenance system. In order to counter contamination of the bottomhole zone of the well, as a rule, injection of specialized acid compositions for the purpose of cleaning is used. To increase the effectiveness of this procedure, the authors of the article propose to discharge the injection well at the maximum permissible speeds. This event will allow primary cleaning of the bottomhole zone of the formation from moving particles clogging the pore space, and reduce formation pressure in the vicinity of the injection well, which will subsequently improve the intake capacity of the well during treatment with acid compositions. The decrease in formation pressure in the bottomhole zone of the well also has a positive effect on the radius of acid penetration into the formation. The proposed approach has been successfully tested on a number of injection wells at one of «Gazprom Neft» enterprises. The results of pilot operations showed an increase in the quality of cleaning the bottomhole zone of the formation and an increase in the intake capacity of injection wells with subsequent preservation of intake dynamics.

How to cite: Belonogov E.V., Korovin A.Y., Yakovlev A.A. Increase in Intake Capacity by Dynamic Operation of Injection Wells // Journal of Mining Institute. 2019. Vol. 238. p. 405. DOI: 10.31897/PMI.2019.4.405
Topical issues in prospecting and development of oil and gas deposits
  • Date submitted
    2013-01-27
  • Date accepted
    2013-03-24
  • Date published
    2013-07-01

Justification of the way and choice of the mud fluid for primary opening-out of layers with abnormally low pressure

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An analysis of oil and gas deposits with zones of abnormally low formation pressure of a productive layer has been completed. Investigation of technological properties of liquid-gas mixtures is conducted. Lathering ability of the fluids, kinetics of liquid-gas mixtures’ destructions and their rheological properties are investigated. Formulations of fluids for make-up liquid-gas mixtures according to shown requirements are offered.

How to cite: Yakovlev A.A., Turitsyna M.V. Justification of the way and choice of the mud fluid for primary opening-out of layers with abnormally low pressure // Journal of Mining Institute. 2013. Vol. 206. p. 116.
Present-day problems of geological exploration and well drilling
  • Date submitted
    2011-09-12
  • Date accepted
    2011-11-08
  • Date published
    2012-03-01

Anormal wear of diamond drill bits

Article preview

The diversity factors and types of stresses occurring in drilling diamonds  crucial thermal and mechanical stresses on stress-deformation condition and, ultimately, the efficiency of diamond tools. Showing ways to improve designs and ways to prevent their crowns abnormal wear.

How to cite: Gorshkov L.K., Yakovlev A.A. Anormal wear of diamond drill bits // Journal of Mining Institute. 2012. Vol. 197. p. 25.
Present-day problems of geological exploration and well drilling
  • Date submitted
    2011-09-30
  • Date accepted
    2011-11-12
  • Date published
    2012-03-01

Mathematical model of the distribution оf temperature in the hole and the surrounding mountain range when applying foamed cements

Article preview

Proposed the mathematical model of temperature distribution in borehole and the surrounding mountain, evaluated conditions reliable capacity wells foamed cements in pavements, rock.

How to cite: Yakovlev A.A. Mathematical model of the distribution оf temperature in the hole and the surrounding mountain range when applying foamed cements // Journal of Mining Institute. 2012. Vol. 197. p. 63.
Present-day problems of geological exploration and well drilling
  • Date submitted
    2011-09-04
  • Date accepted
    2011-11-06
  • Date published
    2012-03-01

Analysis of robust capacity wells of foamed cements

Article preview

Evaluated conditions reliable capacity wells foamed cements in pavements, rock and a current analysis of the temperature field of concrete pavements rocks with varying temperature, which allowed to establish conditions of reliable fastening of wells and the effective application of these foamed cements do not require special technological receptions for drilling of concrete pavements.

How to cite: Yakovlev A.A. Analysis of robust capacity wells of foamed cements // Journal of Mining Institute. 2012. Vol. 197. p. 71.
Without section
  • Date submitted
    1992-07-17
  • Date accepted
    1992-09-03
  • Date published
    1993-01-01

Температурный режим бурящейся скважины и окружающего массива мерзлых пород

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Прогнозирование температурного режима бурящейся скважины является одной из основных задач проектирования технологии бурения в зонах распро­странения мерзлых пород ...

How to cite: Kozlov A.V., Yakovlev A.A. // Journal of Mining Institute. 1993. Vol. 136. p. 46.
Without section
  • Date submitted
    1992-07-04
  • Date accepted
    1992-09-12
  • Date published
    1993-01-01

Температурный режим ступенчатых алмазных коронок при бурении с пеной

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Накопленный опыт показал необходимость учета владния температурного фактора при проектировании рациональных конструкций алмазного породоразрушающего инструмента, предназначенных для проходки скважин с очисткой забоя пеной, и оптимальной технологии их отработки ...

How to cite: Yakovlev A.A., Kozlov A.V. // Journal of Mining Institute. 1993. Vol. 136. p. 70.
Without section
  • Date submitted
    1987-08-24
  • Date accepted
    1987-10-21
  • Date published
    1988-02-01

Экспериментальные исследования температурного режима алмазных коронок при бурении с промывкой пеной

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Внедрение в практику буровых работ технологии алмазного бурения сква­жин с промывкой пенными очистными агентами показало необходимость разра­ботки режимных параметров бурения с учетом влияния температурного фактора  ...

How to cite: Klimov V.Y., Yakovlev A.A., Zavodchikov A.N., Romanov A.A. // Journal of Mining Institute. 1988. Vol. 116. p. 49.
Without section
  • Date submitted
    1984-09-02
  • Date accepted
    1984-11-20
  • Date published
    1985-03-01

Анализ и расчет температурного поля в теле алмазной коронки

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Развитие технологии алмазного бурения, основывающееся на применении высокоскоростных режимов, нового породоразрушающего инструмента и исполь­зовании низкотеплоемких очистных агентов (газожидкостных систем) предъяв­ляет повышенные требования к работоспособности и, в первую очередьк нор­мализации температурного режима работы алмазного породоразрушающего ин­струмента ...

How to cite: Kudryashov B.B., Yakovlev A.A. // Journal of Mining Institute. 1985. Vol. 105. p. 10.