Hydrocarbon Potentiality and Depositional Environment of Naokelekan Formation in Binari Serwan-1 Well, NE-Iraq Using Infrared Factors and Palynological Analysis Evidence

Abstract

The cuttings from the Jurassic Naokelekan Formation have been studied in the oil exploratory Binari-Serwan-1 Well in Dokan Town, Iraqi Kurdistan Region, NE Iraq. Both infrared spectrometry techniques and microscopic study were used for determining hydrocarbon generation potentiality. The prepared strewn slides have been studied under polarizing microscope. The Naokelekan Formation has revealed an excellent total organic carbon (TOC) wt. % content, ranging from 4.20 to 5.88 wt. %. The palynomorphs as well as phytoclasts are totally absent and only the amorphous organic matter (AOM) was identified. The concentrated kerogens of selected samples were analyzed by the Infrared Spectrometer. The results of these samples analysis show existence of kerogen types II and III, which coincides with the microscopic study. This organic matter is of gas and oil prone types. This study suggests that the sediments were deposited in a marine, suboxic to anoxic environment.
 
 http://dx.doi.org/10.25130/tjps.25.2020.030

Palaeogeographic reconstruction and sequence architecture of the middle‐upper Jurassic successions of Hawraman Basin (NW Iran): Implications for tectono‐depositional processes of the northeastern passive margin of the Arabian Plate

“…It is supposed that the deep‐water conditions in SIB continued throughout the Jurassic and also extended to the Cretaceous Garau or Balambo intrashelf basin (Aqrawi et al, 2010; Jassim & Goff, 2006). For example, in the Kurdistan region, due to the persistence of the Sargelu and Naokelekan deep‐water deposition (the Najmah Formation equivalent), the basin lasted throughout the Jurassic and Cretaceous (e.g., Abdula, 2017; Abdula, Abdulla, Salih, Isa, & Hashmi, 2020; Alsharhan, 2014; Sharezwri, Nourmohammadi, & Abdula, 2019). However, in NW Iran, evidence of an abrupt shift of the middle Jurassic basinal facies into the upper Jurassic peritidal carbonate platform suggests that HIB (the SIB equivalent) and the Pars intrashelf basin in SW Iran have only persisted until the MLJT.…”

Microfacies and Diagenetic Processes of the Late Jurassic Naokelekan Formation in selected wells at Balad, Ajil and Baiji Oilfields, Central Iraq

“…Abdula et al [10] through the Rock-Eval analysis and organic petrographical characterization of the upper Jurassic Naokelekan formation, northern Mesopotamian basin, Kurdistan region-Iraq, evaluated the formation and concluded that the Naokelekan Formation contains types II and III kerogen. Abdula et al [11] studied the hydrocarbon potentiality and depositional environment of Naokelekan Formation in Binari Serwan-1 Well, NE-Iraq using infrared factors and palynological analysis evidence. Sharezwri et al [12] concluded through his study on the Naokelekan Formation that this formation was mainly deposited within a ramp setting in two sub-environments: lagoon and shallow marine.…”