نویسندگان
1 شرکت ملی مناطق نفت خیز جنوب
2 گروه حوضههای رسوبی و نفت، دانشگاه شهید بهشتی تهران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
This study aimed to investigate diagenetic processes and effects tectonic changes during time and its role in reservoir quality in the Asmari-Shahbazan reservoir. In this research examined two subsurface sections in the Dezful Embayment and three surface sections in the Lorestan area. to examine the of tectonic activity and on reservoir quality. biostratigraphy study, in Lorestan, Asmari carbonate Formation Early Miocene, but in the northeast of Dezful Embayment, it belongs to Oligocene to Early Miocene. The Shahbazan Formation is primarily composed of carbonate strata and ranges from the from the Middle and Late Eocene. According to research, from Dezful Embayment to Lorestan, the base of Asmari Formation becomes younger. With dolomitization being the most common activity in Shahbazan Formation, this study also discovered that diagenetic processes significantly affect reservoir quality over time. Diagenetic processes have an impact on reservoir quality by either enhancing or reducing their properties. Cementation, micritization, compaction, and dissolution are the primary processes. Eogenesis, mesogenesis, and telogenesis are three settings in which these activities occur. Cementation and compaction are main elements that reduce reservoir quality, whereas dissolution and dolomitization are the most significant activities that improve it. Because of tectonic uplift (collision Arabian plate) and marine retreat (Tethys closed), the Shahbazan Formation has undergone two stages of development, from eogenesis to telogenesis: 1.The first stage, which was characterized by regression, elevation, and dissolution, involved retrogressive deposition during the Pyrenean orogenic period. 2.Progradation and deposition of Asmari layer, burial diagenesis, and collision and uplift comprised the second stage.
کلیدواژهها [English]
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