WATER FLOODING EFFICIENCY IMPROVEMENT AT KARAZHANBAS FIELD
UDC: 622.276.43
DOI: 10.33285/0207-2351-2021-10(634)-5-13
Authors:
KULIKOV ALEXANDER NIKOLAEVICH1,
SILIN MIKHAIL ALEKSANDROVICH1,
VERBITSKY VLADIMIR SERGEEVICH1,
GORIDKO KIRILL ALEKSANDROVICH1,
POVALYAEV ANDREY ALEKSANDROVICH1,
KADYROV ERZHAN ASAROVICH2,
TURKOV VLADIMIR OLEGOVICH2
1 National University of Oil and Gas "Gubkin University", Moscow, Russian Federation
2 Karazhanbasmunai JSC, Aktau, Republic of Kazakhstan
Keywords: oil reservoir flooding optimization methods, alternating steam and water injection, leveling infectivity profile of injection well, high oil viscosity, fluid withdrawal compensation by injection, depletion of initial recoverable oil reserves, production watering rate indicator
Annotation:
The article presents the major geological and technological challenges affecting the waterflooding efficiency on the Karazhanbas field of high-viscosity oil. It reviews the techniques applied for production enhancement and increase of sweep efficiency, such as alternating steam and water injection, conformance improvement in injection wells. Additionally, the efficiency of gel-polymer flooding in the neighboring field (North Buzachi), associated the same productive formation, was evaluated. The paper presents the results of production profiles analysis, conducted for several development objects of the field and discusses the efficiency of conformance control on the selected sites of Karazhanbas field. The assessment of the alternating steam and water injection application on several waterflood cells is provided. On the basis of these evaluations, the practical recommendations were formed for water injection improvement and alternating steam/water injection were formed.
Bibliography:
1. Концепция развития месторождения Каражанбас: отчет о НИР. - М.: РГУ нефти и газа (НИУ) имени И.М. Губкина, 2019.
2. Реализация проекта полимерного заводнения в осложненных условиях месторождения Северные Бузачи с высоковязкой нефтью / А.В. Горшков, Хунянь Чжао, Чжао Бо [и др.] // Высоковязкие нефти и природные битумы: проблемы и повышение эффективности разведки и разработки месторождений: материалы науч.-практ. конф. - Казань, 2012.
3. Совершенствование методов планирования работ по повышению нефтеотдачи пластов / А.Н. Куликов, Л.А. Магадова, М.А. Силин [и др.] // Территория Нефтегаз. - 2016. - № 7-8. - С. 102-110.
4. РД 153-39.1-004-96. Методическое руководство по оценке технологической эффективности применения методов увеличения нефтеотдачи пластов. - М.: ВНИИнефть, 1996. - 87 с.
Back to issue