<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" article-type="research-article" dtd-version="1.1d1" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher">Kazakhstan journal for oil &amp; gas industry</journal-id><journal-title-group><journal-title>Kazakhstan journal for oil &amp; gas industry</journal-title></journal-title-group><issn publication-format="print">2707-4226</issn><issn publication-format="electronic">2957-806X</issn><publisher><publisher-name>KMG Engineering</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">89510</article-id><article-id pub-id-type="doi">10.54859/kjogi89510</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Controlled deep perforation by radial drilling of channels with the "Perfobur" technical system to intensify the reservoir inflow</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Bashirov</surname><given-names>A. I.</given-names></name><bio>&lt;p&gt;руководитель геологической службы&lt;/p&gt;</bio><email>abashirov@perfobur.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Galas</surname><given-names>I. R.</given-names></name><bio>&lt;p&gt;директор по развитию бизнеса&lt;/p&gt;</bio><email>galas@perfobur.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Lyagov</surname><given-names>I. A.</given-names></name><bio>&lt;p&gt;канд. техн. наук, генеральный директор&lt;/p&gt;</bio><email>ilyagov@perfobur.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Nazyrov</surname><given-names>M. F.</given-names></name><bio>&lt;p&gt;менеджер по управлению проектами&lt;/p&gt;</bio><email>mnazyrov@perfobur.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff id="aff-1">ООО «Перфобур»</aff><pub-date date-type="epub" iso-8601-date="2021-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2021</year></pub-date><volume>3</volume><issue>2</issue><fpage>99</fpage><lpage>110</lpage><history><pub-date date-type="received" iso-8601-date="2021-11-30"><day>30</day><month>11</month><year>2021</year></pub-date><pub-date date-type="accepted" iso-8601-date="2021-11-30"><day>30</day><month>11</month><year>2021</year></pub-date></history><permissions><copyright-statement>Copyright © 2021, Bashirov A.I., Galas I.R., Лягов I.A., Nazyrov M.F.</copyright-statement><copyright-year>2021</copyright-year></permissions><abstract>&lt;p&gt;The paper presents a technology for controlled deep penetrating perforation using the Perfobur technical system to intensify inflow by drilling radial channels 69 mm in diameter, up to 25 metres in length. This technology was first applied to a carbonate reservoir in the Bashkirian tier, characterised by high heterogeneity and close proximity of bedrock water.&lt;/p&gt;&#13;
&lt;p&gt;An adjacent well, close to the acid fracture well, with identical reservoir properties, was selected. Well "A" was acid fractured and well "B" was drilled using Perfobur technology with two directional channels, each 14 metres in length. In well "B", after drilling the channels, hydrochloric acid solution was injected through a special hydromonitor nozzle at two points. A total of 48 m3 of acid was injected into the "B" well.&lt;/p&gt;&#13;
&lt;p&gt;Comparing the results of well "B" with the well where the hydrofracturing was performed allow speaking about high efficiency of the controlled radial drilling technology. The ability to predict the channel trajectory, knowledge of its actual trajectory in combination with acid treatment of the reservoir using hydromonitor nozzle at a considerable distance from the reservoir allows achieving a significant increase in oil flow rate with lower water cut of the produced oil.&lt;/p&gt;</abstract><kwd-group xml:lang="en"><kwd>deep penetrating perforation</kwd><kwd>radial channels</kwd><kwd>controlled radial drilling</kwd><kwd>radial stimulated completion</kwd></kwd-group><kwd-group xml:lang="kk"><kwd>терең ену перфорациясы</kwd><kwd>радиалды арналар</kwd><kwd>басқарылатын радиалды бұрғылау</kwd><kwd>қабаттарды радиалды ашу</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>глубокопроникающая перфорация</kwd><kwd>радиальные каналы</kwd><kwd>управляемое радиальное бурение</kwd><kwd>радиальное вскрытие пласта</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lyagov I.A., Baldenko F.D., Lyagov A.V., Yamaliev V.U., Lyagova A.A. UDK 622.243.92 «Methodology for calculating technical efficiency of power sections in small-sized screw downhole motors for the «Perfobur» system». – Записки Горного института, 2019, т. 240, с. 508-514. DOI: 10.31897/PMI.2019.6.508.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Лягов А.В., Лягов И.А., Сулейманов И.Н. Антивибрационные – стабилизирующие _компоновки бурильной колонны для технической системы «Перфобур». – Socar Proceedings, 2020, выпуск 4, с. 024–032.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Lyagov I.A., Vasilev N.I, Reich M., Mezzetti M. Analytical research and experimental tests on the technology fov drilling small diameter channels with small radius of curvature. – Oil Gas European Magazine, 2014, 40(3), р. 124–129.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Lyagov A.V., Malikov E.L., Kuznetsova N.Yu., Shamov N.A., Lyagova M.A., Simonov A.S. Sovershenstvovanie tekhnologii vtorichnogo vskrytiya i osvoeniya skvazhin (Improving the technology of the secondary opening and development of wells). – Neftegazovoe delo. Oil and Gas Business, 2011, Issue 6, pp. 160 – 173. URL: http://www.ogbus.ru/authors/Lyagov/Lyagov_3.pdf.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Bashirov А., Lyagov I., Lyagov I. Combination Of Radial Drilling Technology With Acid Jetting: New Approach In Carbonate Reservoir Stimulation. – 2020 Abu Dhabi International Petroleum Exhibition &amp; Conference, SPE-202661-MS.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Лягов И.А., Лягов А.В., Сулейманов И.Н., Качемаева М.А. Создание технической системы «Перфобур» и исследование её работоспособности в сильно искривленном канале при вынужденных продольных колебаниях. – Нефтегазовое дело, 2015, №5, с. 45-105.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Лягов А.В., Лягов И.А. Выбор допустимых радиусов кривизны скважин сверхмалого диаметра (каналов) для технической системы «Перфобур». – Экспозиция Нефть и Газ, 2014. №6, с.47–52.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Лягов И.А. Анализ результатов промысловых испытаний технической системы «Перфобур». Аналитический синтез базовых узлов «Перфобура» повышенной надежности для бурения сверхдлинных каналов по прогнозируемой траектории. – Нефтегазовое дело, 2014, №1, с. 52–76.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Lyagov I.A. Bottomhole Formation Zone Completion through Ultra Deep Multibranch Channels: Experimental Research of a New Technology. – In Mine Planning and Equipment Selection Proceedings of the 22nd MPES Conference. Dresden: Springer International Publishing, 2014, р. 1221–1229.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Лягов И.А., Губайдуллин А.Г., Лягов А.В., Попов А.Н. Прогнозирование рисков заклинивания для исключения возможности прихватов технической системы «Перфобур» при бурении разветвленных каналов в терригенных коллекторах. – Известия Томского политехнического университета. Инжиниринг георесурсов, 2019, 330(10), с. 126–136.</mixed-citation></ref></ref-list></back></article>
