<?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="kk"><front><journal-meta><journal-id journal-id-type="publisher">Қазақстанның мұнай-газ саласының хабаршысы</journal-id><journal-title-group><journal-title>Қазақстанның мұнай-газ саласының хабаршысы</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">95595</article-id><article-id pub-id-type="doi">10.54859/kjogi95595</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Application of corrosion-resistant tubes on problematic producing wells of the Uzen field</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Khassanov</surname><given-names>D.</given-names></name><email>khassanov_d@kaznipi.kz</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Sikhayev</surname><given-names>M.</given-names></name><email>sikhayev_m@kaznipi.kz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff id="aff-1"></aff><pub-date date-type="epub" iso-8601-date="2020-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2020</year></pub-date><volume>2</volume><issue>4</issue><fpage>63</fpage><lpage>69</lpage><history><pub-date date-type="received" iso-8601-date="2021-12-29"><day>29</day><month>12</month><year>2021</year></pub-date><pub-date date-type="accepted" iso-8601-date="2021-12-29"><day>29</day><month>12</month><year>2021</year></pub-date></history><permissions><copyright-statement>Copyright © 2020, Khassanov D., Sikhayev M.</copyright-statement><copyright-year>2020</copyright-year></permissions><abstract>&lt;p&gt;&lt;em&gt;In the Uzen field, the main causes of corrosion of underground equipment are the high watercut and the presence of acidic gases (&lt;/em&gt;&lt;em&gt;Н&lt;/em&gt;&lt;em&gt;2S and CO2) in the produced fluid. Corrosion of tubing leads to premature shutdown of wells, accidents and, as a result, reduction of oil production. The paper discusses the nature of the corrosive environment, as well as the extent, causes and conditions of the origin of hydrogen sulfide and carbon dioxide corrosion. Results of laboratory studies of samples of steel grade 25 ChMFA after operation are given. A new approach to the problem of corrosion is being justified by conducting a pilot-industrial test of 25 ChMFA corrosionresistant steel tubing.&lt;/em&gt;&lt;/p&gt;</abstract><kwd-group xml:lang="en"><kwd>Corrosion of underground equipment</kwd><kwd>inter-repair period of the well</kwd><kwd>aggressive corrosion environment</kwd><kwd>injection of waste and seawater</kwd><kwd>sulphate reducing bacteria</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>коррозия подземного оборудования</kwd><kwd>межремонтный период скважины</kwd><kwd>агрессивная коррозионная среда</kwd><kwd>закачка сточной и морской воды</kwd><kwd>сульфатвосстанавливающие бактерии</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Авторский надзор за реализацией проектного документа на разработку месторождения Узень. – Филиал ТОО «КМГ Инжиниринг» КазНИПИмунайгаз, Актау, 2015.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Отчет «Подбор коррозионностойкого подземного оборудования в условиях месторождения АО «ОМГ» – Филиал ТОО «КМГ Инжиниринг» КазНИПИмунайгаз, Актау, 2015.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Информационный отчет «PSL зонированию месторождений АО «Озенмунайгаз» и адресного применения футерованных насосно-компрессорных труб» – ТОО «КМГ Инжиниринг», Нур-Султан, 2019.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Papavinasam S. Corrosion control in the oil and gas industry. – Elsevier, chapter 6, 2014.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Информационный отчет «Исследование причин преждевременного разрушения НКТ при эксплуатации в добывающих скважинах Узеньского месторождения АО «Озенмунайгаз». – ИТ-Сервис, Самара, 2019.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Трубы бесшовные насосно-компрессорные и муфты к ним сероводородо- и хладостойкие. – ТУ 1308-006-96380705-2009.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Field monitoring of bacterial growth in oil and gas systems. – NACE-TM0194-2014, 32 р.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Detection, testing and evaluation of microbiologically influenced corrosion on internal surfaces of pipelines. – NACE-TM0212-2018, 52 р.</mixed-citation></ref></ref-list></back></article>
