In this paper, the corrosion rate in the oil and gas production and collection systems of the Zhanazhol field is investigated. Research work has been carried out at the Zhanazhol field aimed at determining the rate of corrosion in oil and gas production and collection systems, as well as assessing the state of inhibitory corrosion protection. In the course of the study, pipelines and equipment of CDNG-1, CDNG-2 and CDGiK were examined. Corrosion is one of the main problems faced by oil and gas production and transportation systems, especially in the presence of aggressive hydrogen sulfide-containing liquids and wastewater. To combat this phenomenon, the KO-101 and KW-201 corrosion inhibitor is used at the Zhanazhol deposit, which is a complex composition of organic amines with additives and is used to protect pipelines and equipment from destruction. One of the advantages of these inhibitors is their ability to be introduced into the system without altering the technological process. Special attention is paid to the hydrodynamic flow of carbonated liquid, which has a significant effect on the distribution of corrosion through pipelines. Depending on the flow mode (emulsion mode, phase separation of the gas-liquid flow), corrosion manifests itself unevenly. For example, in the case of phase separation, corrosion localization is observed along the lower forming line of the pipeline. This is important because such areas are exposed to maximum exposure to aggressive components, such as the aqueous phase containing H₂S, CO₂ and O₂.Transporting large volumes of produced water together with oil significantly reduces the capacity of pipelines and increases energy consumption due to the increased viscosity of the oil-water mixture. Moreover, this contributes to the growth of the area of corrosion damage in the oil collection system, which in turn affects the efficiency of equipment and pipelines.

ALMATOVA B.G.

candidate of technical sciences, associate professor, Aktobe Regional University named after K.Zhubanov, Aktobe, Kazakhstan.

Е-mail: baian.73@mail.ru, https://orcid.org/0000-0002-1680-4682

SHILMAGAMBETOVA ZH.ZH.

candidate of pedagogical sciences, docent, Aktobe Regional University named after K.Zhubanov, Aktobe, Kazakhstan.

Е-mail: zhadra_69@mail.ru. https://orcid.org/0009-0008-8780-7160

MURZAGALIEVA А.А.

master of technical sciences, senior lecturer, Caspian University of Technology and Engineering named after Sh. Yesenova, Aktau, Kazakhstan

Е-mail: alma_7121972@mail.ru. https://orcid.org/0000-0001-8339-0590

DOSMAGAMBETOVA М.B.

1st year doctoral student, West Kazakhstan agrarian and Technical University named after Zhangir Khan, Uralsk, Kazakhstan

Е-mail: miramgul.dosmagambetova@bk.ru. https://orcid.org/0009-0002-6965-0207

TAKHANOVA G.ZH.

master of technical sciences, senior lecturer, Aktobe Regional University named after K.Zhubanov, Aktobe, Kazakhstan.

Е-mail: Gulsim.taxanova.78@mail.ru. https://orcid.org/0009-0005-6278-8280

1. Машаев А.Е., Бисенов Б.К. «Словарь-справочник нефтяника», Актобе, 2006 год.
2. Г.С. Фомин «Коррозия и защита от коррозии. Энциклопедия международных стандартов», Москва, ИПК издательство стандартов, 1999 год.
3. А.В.Беззубов, В.Н.Шаров, В.И. Дубовой, «Машинист насосной станции по закачке рабочего агента в пласт», Москва, «Недра», 1988 год.
4. К.Р. Низамов, «Проблемы защиты металлов от коррозии в нефтегазодобыче» «Нефтяное хозяйство».
5. ГОСТ 9.502-82 «Ингибиторы коррозии металлов для водных систем. Методы коррозионных испытаний».
6. ГОСТ 9.506-87 «Ингибиторы коррозии металлов в водно-нефтяных средах. Методы определения защитной способности».
7. РД 39-0147103-362-90 «Инструкция по применению технологии противокоррозионной защиты подземного и наземного оборудования месторождения «Жанажол» (для обводненной продукции)», ВНИИСПТнефть, Уфа, 1990 год.
8. РД 39-0147103-306-88 «Инструкция по применению технологии противокоррозионной защиты коммуникации и наземного оборудования систем ППД (при содержании Н2S до 300 мг/л) с применением ингибиторов коррозии типа «Нефтехим», ВНИИСПТнефть, Уфа, 1988 год.

corrosion, inhibitors, corrosion rate, Zhanazhol field, oil and gas extraction and collection system, corrosion monitoring, pipelines, database