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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">gscience</journal-id><journal-title-group><journal-title xml:lang="en">Mining Science and Technology (Russia)</journal-title><trans-title-group xml:lang="ru"><trans-title>Горные науки и технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-0632</issn><publisher><publisher-name>The National University of Science and Technology MISiIS (NUST MISIS)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/2500-0632-2016-1-33-38</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-16</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MINING MACHINERY, TRANSPORT, AND MECHANICAL ENGINEERING</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ГОРНЫЕ МАШИНЫ, ТРАНСПОРТ И МАШИНОСТРОЕНИЕ</subject></subj-group></article-categories><title-group><article-title>About a half-wave length of the bottom-hole core drill composed of structural elements of different stiffness</article-title><trans-title-group xml:lang="ru"><trans-title>О длине полуволны призабойной части колонкового бурового снаряда, составленного из конструктивных элементов разной жесткости</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федоров</surname><given-names>Б. В.</given-names></name><name name-style="western" xml:lang="en"><surname>FEDOROV</surname><given-names>B. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Professor</p></bio><email xlink:type="simple">kuzinevgen@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коргасбеков</surname><given-names>Д. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>KORGASBEKOV</surname><given-names>D. R.</given-names></name></name-alternatives><bio xml:lang="en"><p>Teacher</p></bio><email xlink:type="simple">daha_korg@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>КазНИТУ</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Kazakh national research technical university after K.I.Satpaev</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>13</day><month>05</month><year>2016</year></pub-date><volume>0</volume><issue>1</issue><fpage>33</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; FEDOROV B.V., KORGASBEKOV D.R., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Федоров Б.В., Коргасбеков Д.Р.</copyright-holder><copyright-holder xml:lang="en">FEDOROV B.V., KORGASBEKOV D.R.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://mst.misis.ru/jour/article/view/16">https://mst.misis.ru/jour/article/view/16</self-uri><abstract><p>In the formation of the well under the influence of an axial load and speed core drilling shell is curved, with its lower bottomhole part consists of elements of different stiffness: a set of core and drill pipe. To determine the length of the half-wave in this part of the technological tools used energy method, according to which the whole work of external forces on the length of said potential energy goes into twisted drill. The solution of the corresponding equation is possible to obtain a formula for determining the length of the halfwave of the bottom-hole shell. The resulting relationship is different from the well-known formula B. I. Vozdvizhenskogo, MG Vasilyeva that it additionally takes into account the ratio of the core set, and half-wave ratio of moments of inertia and the core set of drill pipes and the mass ratio of coring and drilling labor per unit length. To reduce the curvature of the wells is recommended to install in the "crests" half-waves of the bottomhole shell ribs.</p></abstract><trans-abstract xml:lang="ru"><p>При формировании скважины под влиянием осевой нагрузки и частоты вращения колонковый буровой снаряд искривляется, причем его нижняя призабойная часть состоит из элементов разной жесткости: колонкового набора и бурильной трубы. Для определения длины полуволны в этой части технологического инструмента использовал энергетический метод, в соответствии с которым вся работа внешних сил на упомянутой длине переходит в потенциальную энергию искривленного бурового снаряда. Решение соответствующего уравнение позволило получить формулу для определения длины полуволны призабойной части снаряда. Полученная зависимость отличается от известной формулы Б.И. Воздвиженского, и М.Г. Васильева тем, что она дополнительно учитывает отношение длин колонкового набора и полуволны, отношение моментов инерции колонкового набора и бурильных труб и отношение масс колонковой и бурильных труб, приходящихся на единицу длины. Для уменьшения искривления скважины рекомендуется устанавливать в «гребнях» полуволн призабойной части снаряда ребра жесткости.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>искривление</kwd><kwd>колонковый буровой снаряд</kwd><kwd>ребра жесткости</kwd><kwd>длина полуволны</kwd><kwd>гребни полуволн</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bending</kwd><kwd>core drill</kwd><kwd>ribs</kwd><kwd>half-wave length</kwd><kwd>half-wave crests</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Туякбаев Н.Т., Федоров Б.В. Теория формирования и технические средства отбора керна из скважин. Алма-Ата: Наука, 1988.</mixed-citation><mixed-citation xml:lang="en">Tujakbaev N.T., Fedorov B.V. Teorija formirovanija i tehnicheskie sredstva otbora kerna iz skvazhin. [Theory formation and technical means of the coring holes.] Alma-Ata: Nauka, 1988</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ганджумян Р.А., Калинин А.Г., Никитин Б.А. Инженерные расчеты при бурении глубоких скважин. М: Недра, 2000.</mixed-citation><mixed-citation xml:lang="en">Gandzhumjan R.A., Kalinin A.G., Nikitin B.A. Inzhenernye raschety pri burenii glubokih skvazhin. [The theory of formation and technical means of coring wells] M:: Nedra, 2000.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Заурбеков С.А., Федоров Б.В. Направленное бурение скважин. Алматы: КазНТУ, 2015. – С. 292.</mixed-citation><mixed-citation xml:lang="en">Zaurbekov S.A., Fedorov B.V. Napravlennoe burenie skvazhin. [Directional drilling] KazNTU, 2015. – P. 292.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Пат. №14120 РК KZ (13) А(Буровой снаряд) /Федоров Б.В. Касенов А.К. и др.; опубл. 2010, Бюл. № 3.</mixed-citation><mixed-citation xml:lang="en">Pat. No 14120 PK KZ (13) A(Drill)/ Fedorov B.V. Kasenov A.K. and others; 2010,</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Иогансен К.В. Спутник буровика: Справочник - М.: Недра, 1990.</mixed-citation><mixed-citation xml:lang="en">Iogansen K.V. Sputnik burovika [Satellite driller] Manual. – M: Nedra, 1990</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Flemings, P.B., Polito, P.J., Pettigrew, T.L., Iturrino, G.J., Meissner, E., Aduddell, R., Brooks, D.L., Hetmaniak, C., Huey, D., Germaine, J.T., and the IODP Expedition 342 Scientists, 2013. The Motion Decoupled Delivery System: a new deployment system for downhole tools is tested at the New Jersey Margin. Scientific Drilling, 15:51–56.</mixed-citation><mixed-citation xml:lang="en">Flemings, P.B., Polito, P.J., Pettigrew, T.L., Iturrino, G.J., Meissner, E., Aduddell, R., Brooks, D.L., Hetmaniak, C., Huey, D., Germaine, J.T., and the IODP Expedition 342 Scientists, 2013. The Motion Decoupled Delivery System: a new deployment system for downhole tools is tested at the New Jersey Margin. Scientific Drilling, 15:51–56.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Paul Bommer. A Primer of Oilwell Drilling. - University of Texas Continuing education, 2008.</mixed-citation><mixed-citation xml:lang="en">Paul Bommer. A Primer of Oilwell Drilling. - University of Texas Continuing education, 2008.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Wilson Bridge Rd., Water Well Journal. National Water Well Association, 500 W. Suite 130, Columbis, Ohio 43085 U.S.A. (Monthly periodical.) Intended for commercial well drillers and water well equipment suppliers in the U.S. The magazine annually publishes a buyers' guide and a directory of manufacturers as well as offering interesting articles on new and old techniques and equipment, business and industry practices</mixed-citation><mixed-citation xml:lang="en">Wilson Bridge Rd., Water Well Journal. National Water Well Association, 500 W. Suite 130, Columbis, Ohio 43085 U.S.A. (Monthly periodical.) Intended for commercial well drillers and water well equipment suppliers in the U.S. The magazine annually publishes a buyers' guide and a directory of manufacturers as well as offering interesting articles on new and old techniques and equipment, business and industry practices</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
