2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University 10.31897/pmi.2020.2.179 pmi-13383 https://pmi.spmi.ru/pmi/article/view/13383 Нефтегазовое дело Oil and gas Development of mathematical models to control the technological properties of cement slurries Разработка математических моделей управления технологическими параметрами тампонажных растворов Chernyshov Sergei E. Чернышов С. Е. Chernyshov Sergei E. nirgnf@bk.ru 0000-0002-2034-3014 Пермский национальный исследовательский политехнический университет (Пермь, Россия) Perm National Research Polytechnic University (Perm, Russia) Galkin Vladislav I. Галкин В. И. Galkin Vladislav I. vgalkin@pstu.ru Пермский национальный исследовательский политехнический университет (Пермь, Россия) Perm National Research Polytechnic University (Perm, Russia) Ulyanova Zoya V. Ульянова З. В. Ulyanova Zoya V. z.v.uljanova@pstu.ru Пермский национальный исследовательский политехнический университет (Пермь, Россия) Perm National Research Polytechnic University (Perm, Russia) Macdonald David I.M. Макдоналд Дэвид Иаин Макферсон Macdonald David I.M. d.macdonald@abdn.ac.uk Абердинский университет (Абердин, Соединённое Королевство) University of Aberdeen (Aberdeen, United Kingdom) 24 04 2020 2020 242 179 190 09 07 2019 26 09 2019 24 04 2020 © 2020 С. Е. Чернышов, В. И. Галкин, З. В. Ульянова, Дэвид Иаин Макферсон Макдоналд © 2020 Sergei E. Chernyshov, Vladislav I. Galkin, Zoya V. Ulyanova, David I.M. Macdonald 2020 С. Е. Чернышов, В. И. Галкин, З. В. Ульянова, Дэвид Иаин Макферсон Макдоналд Sergei E. Chernyshov, Vladislav I. Galkin, Zoya V. Ulyanova, David I.M. Macdonald Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0) This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0) https://pmi.spmi.ru/pmi/article/view/13383

Нефтегазодобывающие компании предъявляют все более высокие требования к качеству крепления обсадных колонн скважин, в том числе к процессу непосредственной закачки и продавки тампонажного раствора с учетом требований к высоте подъема тампонажного раствора в кольцевом пространстве, исключения вероятного ГРП, разрабатывая при этом гидравлическую программу цементирования. Необходимо предотвратить глубокое проникновение фильтрата тампонажного раствора в проницаемые пласты для исключения загрязнения продуктивных толщ. Выполнить одновременно все указанные требования без использования модифицирующих добавок невозможно, все чаще разрабатываются и применяются сложные цементные композиции. При этом необходимость корректировки рецептур тампонажных составов появляется практически для каждой конкретной скважины. С целью выбора и обоснования рецептур тампонажных составов, а также для оперативной корректировки с учетом требований проектных документов и геолого-технических условий цементирования обсадных колонн были разработаны математические модели основных технологических свойств тампонажных растворов для крепления эксплуатационных колонн скважин в условиях Пермского края. Выполнен анализ влияния поликарбоксилатного пластификатора (Пл) и понизителя фильтрации на основе гидроксиэтилцеллюлозы (Пф) на пластическую вязкость (В), растекаемость (Р) и фильтрацию (Ф) тампонажных растворов. Разработка математических моделей выполнена по данным более 90 измерений.

Oil and gas producing enterprises are making increasingly high demands on well casing quality, including the actual process of injection and displacement of cement slurry, taking into account requirements for the annular cement level, eliminating possible hydraulic fracturing, with developing a hydraulic cementing program. It is necessary to prevent deep invasion of cement slurry filtrate into the formation to exclude bridging of productive layers. It is impossible to fulfill all these requirements at the same time without application of modifying additives; complex cement compositions are being developed and applied more often. Furthermore, need to adjust cement slurries recipes appears for almost every particular well. In order to select and justify cement slurries recipes and their prompt adjustment, taking into account requirements of well construction project, as well as geological and technical conditions for cementing casing strings, mathematical models of the main technological properties of cement slurries for cementing production casing strings in the Perm Region were developed. Analysis of the effect of polycarboxylic plasticizer (Pl) and a filtration reducer (fluid loss additive) based on hydroxyethyl cellulose (FR) on plastic viscosity (V), spreadability (S) and filtration (F) of cement slurries is conducted. Development of mathematical models is performed according to more than 90 measurements.

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