Hydrocarbon generating-potential and maturity-related changes of the Khatatba Formation, Western Desert, Egypt

作     者：Mohammed A.Ahmed Mostafa M.A.Hassan 

作者机构：Geology DepartmentFaculty of ScienceMansoura University35516MansouraEgypt Egyptian General Petroleum CorporationCairoEgypt 

出 版 物：《Petroleum Research》 (石油研究（英文）)

年 卷 期：2019年第4卷第2期

页      面：148-163页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：Badr El Din Petroleum Company Egyptian General Petroleum Corporation 

主　　题：NEAG concession Abu Gharadig Basin Source rock evaluation Khatatba Formation Well logging 

摘      要：The petroliferous province of the Western Desert comprises several sedimentary basins with different hydrocarbon potentiality and production *** middle Jurassic Khatatba Formation was proved a potential source rock in some basins and active/effective in *** current study aims to give a comprehensive assessment and evaluation of the potential organic-rich intervals of the Khatatba Formation across JG and JD fields,northeast Abu Gharadig Basin(NEAG).The hydrocarbon generating capability and sourcing of the Khatatba Formation studied through organic geochemistry calibrated with well ***,the efficiency of some widely used plots of geochemistry is re-evaluated according to their accuracy and *** cuttings,thirteen cores and two oil samples obtained from three wells(JG-2,JG-3 and JD-4)were *** samples revealed total organic carbon(TOC)values ranging from 1 to 9 wt%,exhibiting a good-excellent potential source rock.A single sample in the JD-4 well attained a TOC value of 21.3 wt%with a generating potential(represented by S2 parameter)exceeding 146 mgHc/g rock required a special *** of the samples(mainly in the JD-4 well)attained a sufficient level of thermal maturity for hydrocarbon generation with a Tmax up to 449
*** vitrinite reflectance(%Ro)values(a common maturity-related indicator)acquired from the JD-4 well ranging between 0.76%and 0.92%.These values are tediously increasing with depth indicating a uniform geothermal *** Khatatba organofacies,with wide variety of kerogen types(I,II,II-S and II/III),contain marine organic matter with a slight terrigenous input,exhibiting anoxic-suboxic environmental ***-source correlations define the organic-rich intervals responsible for charging the accumulated hydrocarbon in the NEAG concession.