Abstract
The main factors affecting the nature of uneven hydrocarbon saturation of the AC10 formation reservoir at Priobskoye field located in Western Siberia are considered. The formation is characterized by extreme heterogeneity caused by macro- and microstructure, which is determined by the lithofacial and structural-morphological conditions of sedimentation. The formation is characterized by high variability of lithological-mineralogical composition and textural and structural features. To bring to light the nature of the uneven hydrocarbon saturation of the reservoir, the combined analysis of the findings obtained from the study of the size of capillary channels and pores, as well as the investigation of the degree of their filling with clay and carbonate material, was performed. The analysis has shown that the filler composition, its amount in the pore space, and the (core) hydrocarbon saturation collectively evened the AC10 formation electrical resistance in different saturation zones, which led to distortion of the hydrocarbon saturation of the reservoir as a whole.
Highlights
Введение Неоднородность горных пород является фундаментальным свойством материи
Однако в теории и практике подсчета запасов углеводородного сырья этот вопрос остается менее изученным и ограничивается лишь определением коэффициентов, характеризующих неоднородность, и типизацией по ним нефтяных залежей [5, 9]
An Investigation of Permeability, Porosity, and Residual Water Saturation Relationships for Sandstone Reservoirs // The Log Analyst, 1968, Vol 9, No 4, pp
Summary
2. Данные ГИС и фотографии керна в дневном и ультрафиолетовом свете пород пласта АС10 скважины 2 Приобского месторождения. Для пород зоны 1 песчаная фракция изменяется от 40,4 до 59,2 % (среднее значение составляет 44,6 %), алевритовая – от 33,2 до 49,2 % (45,0 %), глинистая – от 7,3 до 12,7 % (10,3 %), карбонатность варьирует в пределах 2,5 9,6 % (4,9 %). Для пород зоны 2 песчаная фракция изменяется от 23,6 до 47,9 % (среднее значение составляет 35,4 %), алевритовая – от 38,7 до 59,6% (50,4%), глинистая – от 10,5 до 24,1 % (14,2 %), карбонатность варьирует в пределах 4,6 30,9 % (9,3 %)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
