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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">10.17073/2500-0632-2016-2-50-65</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-27</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 ROCK PROPERTIES. ROCK MECHANICS AND GEOPHYSICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СВОЙСТВА ГОРНЫХ ПОРОД. ГЕОМЕХАНИКА И ГЕОФИЗИКА</subject></subj-group></article-categories><title-group><article-title>Analysis of porosity parameter with involvement of elements of regional petrophysics (electrofacies) and clayness type</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ параметра пористости с привлечением элементов региональной петрофизики (электрофаций) и типа глинистости</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>Ратников</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ratnikov</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Deputy General Director on scientific work</p></bio><email xlink:type="simple">IBRatnikov@mail.ru</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>Шульга</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shulga</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="en"><p>Head of the Department of petrophysics</p></bio><email xlink:type="simple">romshulga@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романов</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanov</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Director of petrophysics Department</p></bio><email xlink:type="simple">romanovea@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бастриков</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bastrikov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>General Director</p></bio><email xlink:type="simple">bastrikov@sibniinp.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Нефтеком»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC «Neftecom»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО «Сибирский научно-исследовательский институт нефтяной промышленности»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>PJSC «SibNIINP»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>22</day><month>07</month><year>2016</year></pub-date><volume>0</volume><issue>2</issue><fpage>50</fpage><lpage>65</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ratnikov I.B., Shulga R.S., Romanov E.A., Bastrikov S.N., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Ратников И.Б., Шульга Р.С., Романов Е.А., Бастриков С.Н.</copyright-holder><copyright-holder xml:lang="en">Ratnikov I.B., Shulga R.S., Romanov E.A., Bastrikov S.N.</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/27">https://mst.misis.ru/jour/article/view/27</self-uri><abstract><p>The most important estimation parameter – the open porosity coefficient (Kp) - in petrophysical laboratories is, as a rule, determined for the productive formation on the whole and without taking into account its regional heterogeneity. As a basic criterion at selecting the samples to construct the model Rp = f(Kp) a range of the porosity value is taken. In this case it is assumed that the higher is Δ Kp , the higher is the validity of the relation Rp = f(Kp). However, in practice such concept often creates the problems of ambiguity in determining the porosity by the electric resistivity of water saturated samples in different wells even within one field. This phenomenon is resulted from neglecting, on one hand, the specific features of the regional petrophysics object - facies, which are reflected in the form of well logging curves including SP, and, on the other hand, the element of the general petrophysics object – a type of clayness. The breakdown (classification) of the formation by facies, determination and taking into consideration the type of clayness as well as distinguishing and analysis of petrophysical types of rock based on the rock porosity and permeability characteristics within a formation permit to obtain satisfactory relations between electric resistivity and porosity of the rock.</p></abstract><trans-abstract xml:lang="ru"><p>Важнейший подсчетный параметр – коэффициент открытой пористости (Kп) – в петрофизических лабораториях, как правило, определяется для объекта (пласта) в целом и без учета его региональной неоднородности. Основным критерием при отборе коллекции образцов для составления модели Pп = f(Kп) служит размах величины. При этом полагается: чем больше, тем выше достоверность связи Pп = f(Kп). Однако на практике зачастую такая концепция создает проблемы неоднозначности определения по удельному электрическому сопротивлению (УЭС) водонасыщенных образцов в разных скважинах даже в пределах одного месторождения. Это явление обусловлено недоучетом особенностей, с одной стороны, объекта региональной петрофизики – фаций, которые находят свое отражение в форме кривых ГИС, в том числе ПС, с другой - элемента объекта общей петрофизики – типа глинистости. Разбиение (классификация) пласта по фациям, определение и учет типа глинистости, а также выделение и анализ петрофизических типов пород на основе фильтрационно-емкостных свойств пород в пределах пласта позволяют получить удовлетворительные связи между УЭС и породы.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>открытая пористость</kwd><kwd>удельное электрическое сопротивление</kwd><kwd>фации</kwd><kwd>глинистость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>porosity</kwd><kwd>electric resistivity</kwd><kwd>facies</kwd><kwd>claynes</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">Abbaszaden M.D., Fujii H. and Fujimoto F. Permeability Prediction by Hydraulic Flow Units - Theory and Application. SPE Formation Evaluation, December 1996. P. 263-271.</mixed-citation><mixed-citation xml:lang="en">Abbaszaden M.D., Fujii H. and Fujimoto F. 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