Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate最新文献

{"title":"Pre-Khuff subsurface stratigraphy in Kuwait","authors":"A. Al-Bloushi, S. Tanoli, R. Husain, M. Al-Wadi, A. Horbury, P. Clews","doi":"10.3997/2214-4609.201900215","DOIUrl":"https://doi.org/10.3997/2214-4609.201900215","url":null,"abstract":"Abstract Only a few wells were drilled through the Pre-Khuff section in Kuwait and therefore limited data is available. A composite pre-Khuff stratigraphic section is attempted from this data by utilizing age dating data, the distinctive heavy mineral assemblages and by correlating with regional analogues. In north Kuwait, the oldest sediments encountered are evaporites overlain by carbonates likely belonging to the Hormuz Group of Infra-Cambrian to Early Cambrian age. The Permo-Carboniferous Unayzah Formation unconformably overlies these carbonates. In south Kuwait these strata are missing and the Upper Permian Khuff Formation directly overlies on the older sediments. The oldest sediments in south Kuwait consist of deformed, varve like deposits of finely laminated siltstone and mudstone probably belonging to the Murdama Group of Lower Ediacaran age. The overlying Rubtayn / Mataar Formation of possible latest Precambrian (Ediacaran) to earliest Cambrian age is made up of polymictic conglomerate, red sandstone and mudstone. The Badayi Formation overlies this sequence and consists of volcanics and volcaniclastic tuffs. These are overlain by red sandstone, siltstone and mudstones that could be laterally coeval to the Hormuz Formation. Heavy minerals in the Ediacaran to earliest Cambrian strata are typified by apatite while zircon is dominant in the Unayzah Formation.","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115469126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Infra-Cambrian and Early Paleozoic Extension in East Rub’ Al Khali Basins and Dibdibah Trough, Saudi Arabia","authors":"H. Xiao, A. Bhullar, N. Abbas","doi":"10.3997/2214-4609.201900207","DOIUrl":"https://doi.org/10.3997/2214-4609.201900207","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130217405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An updated Stratigraphic Framework for the Haima Supergroup of North Oman","authors":"G. Hughes, A. Lawati","doi":"10.3997/2214-4609.201900227","DOIUrl":"https://doi.org/10.3997/2214-4609.201900227","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131583565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imaging and inversion challenges for deep targets and low porosity plays: a case study from Illizi Basin, Algeria","authors":"L. D. Vincenzi, J. V. Dijk, S. Trezzi, T. Chelbi","doi":"10.3997/2214-4609.201900229","DOIUrl":"https://doi.org/10.3997/2214-4609.201900229","url":null,"abstract":"This case study summarizes the data reprocessing effort applied to improve the image quality of seismic data located in a structurally complex reservoir with low porosity & permeability and subsequent inversion to rock properties. The results show significant enhancements in structural definition, whilst the inversion to rock properties has enabled lithology and porosity characterization with increased confidence. The Tinrhert Nord Perimeter lies within the South Berkhine-North Illizi basin in Eastern Algeria. This is a highly productive petroleum province with a 60year exploration history (Dixon, 2010). Target reservoirs are classed into two petroleum systems. System I is sourced from Frasnian age shales with good quality reservoirs of Devonian and Silurian age sandstones. System II is sourced from Silurian age shales with reservoirs of Ordovician and Cambrian age sandstones. The latter reservoirs quality is considered poor, with less than 6% porosity and 15mD permeability. The prospect is covered by three separate legacy seismic data volumes. The final seismic data image quality in each case was of generally low resolution & limited bandwidth, and not considered conducive to obtain a proper reservoir characterization in the typically thin, low porosity reservoirs. The Tinrhert Nord legacy seismic volumes were therefore re-processed concurrently with a workflow designed to improve lateral event continuity, preserve sharper terminations at discontinuities such as faults and channels, decrease the amount of multiple contamination, and increase the temporal resolution through a wider signal bandwidth. The final pre-stack merged seismic volume shows a significant upgrade in image quality over pre-existing legacy data, indicating that the applied processing sequence was appropriate. Rock physics analysis and prestack simultaneous AVO inversion was then performed to estimate P-impedance and S-impedance from the conditioned seismic data. Well log and petrophysical analysis were carried out to establish the relationship between seismic attributes and rock properties. Results showed good sensitivity of the acoustic and elastic properties AI and SI to PHIT, VCL and SW. Pre-stack inversion attributes were used to characterize target reservoirs using the reprocessed seismic data. Consistent wavelet extraction at well locations indicated the high quality of the input seismic data, which was also observed form the excellent match between logged and inverted traces.","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114083110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sedimentological Controls on Reservoir Properties of a Paleozoic Tight Sandstone Reservoir, Saudi Arabia","authors":"O. Abdullatif, A. Alqubalee, L. Babalola, M. Makkawi","doi":"10.3997/2214-4609.201900217","DOIUrl":"https://doi.org/10.3997/2214-4609.201900217","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131040649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Overview of Fractured Basement Play Concept in Saudi Arabia","authors":"Awadelgied Adam, Yasir Ghorashi","doi":"10.3997/2214-4609.201900224","DOIUrl":"https://doi.org/10.3997/2214-4609.201900224","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123130718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sedimentology and Isotopes Stratigraphy of the Fara Formation in North Oman Outcrops and its Relation to the South Oman Subsurface","authors":"H. Rawahi, I. Gómez-Pérez, K. Bergmann, M. Cantine, C. Fonseca-Rivera","doi":"10.3997/2214-4609.201900213","DOIUrl":"https://doi.org/10.3997/2214-4609.201900213","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130187236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sequence Architecture and Reservoir Heterogeneity of the Late Ordovician Glacio-Fluvial Sarah Formation: Outcrop Analog From Qassim Region, Central Saudi Arabia","authors":"O. Abdullatif, A. Jarrah","doi":"10.3997/2214-4609.201900218","DOIUrl":"https://doi.org/10.3997/2214-4609.201900218","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115472196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rock Property of the Upper Ordovician in the Rub’ al-Khali Basin, Kingdom of Saudi Arabia","authors":"Z. Andegeorgs, K. Mah, J. Ismail, M. Husni","doi":"10.3997/2214-4609.201900222","DOIUrl":"https://doi.org/10.3997/2214-4609.201900222","url":null,"abstract":"Abstract In the Rub' al-Khali Basin, the Late Ordovician glacial sediments were deposited in a vast water body where laterally shifting depositional environments resulted in lateral facies changes, from well-sorted glacio-fluvial reservoir sandstone to diamictite deposits. The predominantly fluvial channel deposits, consisting of medium to very fine grained sheet sands and interfluve muddy siltstones, were widely distributed, the thicknesses of which ranged from tens to several hundreds of feet. In core, glacial outwash channels, braided plain sands, and lacustrine shale layers with drop-stones from melting ice were observed. The net sand-to-gross ratio is generally high due to the sedimentation dynamics, whereby moving icepressured meltwater jets became sorting agents in the process of glacial sedimentation. In the central Rub' al-Khali, core studies from drilled wells and associated log responses show variable reservoir quality. The overall reservoir quality is controlled by a number of primary and secondary factors. Primary controls are related to sedimentation and the depositional environment, which are manifested in these type of facies, grain size and sorting. Well-sorted, coarse sandstone is associated with high energy currents, and is mainly present in the fluvial system. Non-reservoir facies such as lacustrine shale and diamictite deposits are associated with low energy lacustrine or deep water deposits. The characteristic high net-to-gross ratio observed in the Rub' al-Khali Basin is primarily due to grain sorting. Thin sections from core indicate that mechanical compaction and silica cementation had, in areas, effected reservoir quality. Post-deposition diagenesis, particularly clay coatings, preserved intergranular porosity by preventing continued silica growth on sand grains. Mineral dissolution is not prevalent, and likely did not have significant effect on porosity. Evidence of pressure solution, such as micro-stylolites and sutured contacts between grains are present, indicating sandstone grains were subjected to significant mechanical compaction. Compaction is related to the depth of burial, and its impact on reservoir quality varies throughout the Rub' al-Khali Basin. Silica cementation appears to be sourced from stress inducing stylolites, where the silica cement is formed around the grains.","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"247 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116413278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting Facies and Reservoir Properties in the Amin Formation Tight Gas Play, Sultanate of Oman","authors":"J. Moss, R. Pereira, A. Aghbari, H. Zuhaibi, E. Adams","doi":"10.3997/2214-4609.201900211","DOIUrl":"https://doi.org/10.3997/2214-4609.201900211","url":null,"abstract":"","PeriodicalId":221727,"journal":{"name":"Seventh Arabian Plate Geology Workshop: Pre-Cambrian to Paleozoic Petroleum Systems in the Arabian Plate","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124428603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}