Thamer Al-Ameri

• PhD Palynology and Petroleum G. Univ. London
• Professor (Full) at University of Baghdad

Bulk properties, stable carbon isotopes, whole crude Gas-Chromatography and oil mode ratios of sterane and terpanes data of analyzed samples of oil from the Cretaceous Formation reservoirs of East Baghdad oil field are from five producing wells (EB21, EB68, EB92, EB5 and EB31) from reservoirs of Zubair, Khasib, and Tanuma Formations. They are discu...

Analysis of δ¹³ C aromatics and saturates hydrocarbons plus extracts from source rocks plots in graphical diagram as well as their δ¹³C% and C28/C29 ratio of source age sterane biomarkers of 300 scattered Crude oil samples have enabled this study to assess hydrocarbons grouping into families' related to sedimentary basins in Iraq. Oil sources might...

This study is concerned with Jurassic – Cretaceous succession of oil field called Ad'daimah (local Arabic word meaning rainy clouds and might be abbreviated to Dima field) to explore the hydrocarbon potential in the Ad'daimah structure that formed mainly by salt diaper of the pre-Cambrian Hormz Formation. The sedimentary column thickness of Jurassi...

Yamama Formation (Late Berriasian- Aptian cycle) is one of the main Lower Cretaceous carbonate promising reservoir in the Mesopotamian Basin, southern Iraq. The Yamama obviously is oil producing throughout Rumaila North, Zubair, Majnoon, West Qurna, Nahr Umr, Nasiyria, Abu Khima, Rafedain, Samawa, and Luhais oilfields southern Iraq. Eight crude oil...

Workshop Overview Since the establishment of the first EAGE subsurface workshop on Iraq held in 2012 many of the southern Iraq fields have gone through major development and re-development programs. Major data acquisition programs (seismic, core, logs) and production and surveillance data have increased our understanding of the reservoirs. This und...

It is evident from this study that Yamama Formation is reservoir rocks and source rocks at the same time, based on occurrences of crude oil and source rocks. Bulk properties of Yamama oil in six wells as well as comparing several samples of Yamama oil by using the biological mark have indicated multi source of hydrocarbons with some pay having Jura...

Wetland of South Iraq (locally called Ahwar) are discussed in this study for their evolution, natural characteristics, human settlements and their development to evolve first world civilization as well as their use in present days with case studies to correlation of their character for including the site in the world heritage list. Correlation of t...

The petroleum system of Halfaya oil field shows that the hydrocarbon generation of these Formations such as Sha′uiba and Nahr Umr are immature and have generated few oil TR ≤ 50% which are neglected as compared to Formations below them which are very rich source rock. The Formations of Yamama, Ratawi and Sulaiy are mature with TR ≤ 100%. Other Form...

ظهر من الدراست البالينولوجيه و الجيولوجيه ان المنخفضات تكونت في وسط وجنوب العراق بسبب التاثيرات التكتونية وتشعبات مسارات نهري دجلة والفرات خاصة بعد تغير المصب من مكانه في مضيق هرمز جنوبي الخليج العربي الى موقعه الحالي جنوب البصرة قبل عشرة الاف سنة نتيجة ارتفاع مستوى سطح البحر سبعين مترا واندفاعه في وادي الخليج العربي الحالي مباشرة بعد ذوبان القطب ا...

The under taken study is concerned with Total Petroleum System of Upper Jurassic - Cretaceous succession of Majnoon Oil Field (TSP203001) in southern Iraq that contain several reservoirs in it. The Cretaceous sediments of the Mesopotamian basin of Iraq one of the richest petroleum systems in the world which contain carbonate and sandstone reservoir...

Halfaya oil field is of NW-SE trend in the Mesopotamian Basin and close to the Zagross Fold Belt, it is in production in Mesan Governorate. Nine oil samples of four production wells from this field are selected in this study from reservoirs of Khasib, Mishrif and Nahr Umr Formations. They are analyzed chemically for their crude oil characterization...

This paper deals with the generation of hydrocarbon and migration pathways in Ad'Daimah oil field was studied by usinga digital data model to evaluate the sedimentary basin for generation which is called PetroMod (1D) Software program, and by using seismic section interpretations to show the migration pathways through the geological time. PetroMod...

Analysis of δ¹³ C aromatics and saturates hydrocarbons plus extracts from source rocks plots in graphical diagram as well as their δ¹³C% and C28/C29 ratio of source age sterane biomarkers of 300 scattered Crude oil samples have enabled this study to assess hydrocarbons grouping into families' related to sedimentary basins in Iraq. Oil sources might...

The main parameters of the possible source rock within Zubair Formation are satisfying, in terms of quantity, quality, and thermal maturity. Thirty-eight samples (15 cores 23 cuttings) are analyzed to determine the pyrolysis parameters as well as nine rock samples (6 core and 3 cuttings) are introduced to gas charmotagraphy/mass spectrometry (GC/MS...

Oil biomarkers and isotope values, of the analyzed samples from the Saadi and Yamama Formation reservoirs of Santonian and Valanginian ages respectively from well Da-1 as well as Yamama Formation extracts are plotted on sterane triangle, hopane diagram, tricyclic terpane diagram, pristane to phytane ratio with canonian variables, δC13 saturate and...

Mishrif crude oil is characterized by low API˚ gravity, high sulfur content, and carbon isotope ratio of -27.59. The composition of Mishrif crude oil is mainly aromatic. The different relation between different biomarkers indicate that the source of Mishrif crude oil is an anoxic marine carbonate mature kerogen type II, with an age of Upper Jurassi...

Gas Chromatography GC, Gas Chromatography–Mass spectrometry GC/MS techniques used for analysis of the crude oils that taken from (10) producing wells in Nasiriyah oil field including (NS-1, NS-3, NS-4, NS-5, NS-6, NS-7, NS-8, NS-9, NS-10, and NS-12) from Mishrif reservoir . This reservoir is one of the important reservoirs in Al-Nasiriyah oil field...

The current work investigates the hydrocarbon potentiality of the upper Jurassic–lower Cretaceous rocks in the Marib-Shabwah Basin, Central Yemen, through the Sabatayn-1 well. Therefore, palynological and organic geochemical analyses were carried out on 37 ditch cutting and 12 core samples from the well. Palynofacies analysis of the Madbi (late Oxf...

Yamama Formation (Late Berriasian- Aptian cycle) is one of the main Lower Cretaceous carbonate promising reservoir in the Mesopotamian Basin, southern Iraq. The Yamama obviously is oil producing throughout Rumaila North, Zubair, Majnoon, West Qurna, NahrUmr, Nasiyria, Abu Khima, Rafedain, Samawa, and Luhais oilfields southern Iraq. Eight crude oil...

Mesopotamian people of the Babylonian and Sumerian civilization of 6000 – 3000 years before present have used asphalt as cementing material of blocks of their buildings and paving roads while oil were used by the Sumerian and Faraonis for saving human bodies after death. Continuation of that civilization, Islamic Abbasids Scientists had performed t...

قبل البدئ ببرنامج هذا المؤتمر العالمي الثاني لدراسات نفط العراق نستذكر ان اول من اول من وضع اسس العلوم التي استندت عليها علوم عصرنا هم العلماء العرب المسلمين و خاصة العلوم الجيولوجيه من قبل الشيخ ابن سينا و علوم الاستكشاف و التنقيب عن خامات المعادن و كنوز باطن الارض هو العالم الجليل البيروني. و كجزء من دراسات العراقيين في نفط العراق و بالتعاون مع ا...

1D (Petromod) hydrocarbon charge modeling and source rock characterization of the Lower Cretaceous and Upper Jurassic underlying the prolific Cretaceous and Tertiary reservoirs in the Basra oilfields in southern Iraq. The study is based on well data of the Majnoon, West Qurna, Nahr Umr, Zubair, and Rumaila oil fields. Burial histories indicate comp...

PALYNOMORPH STRATIGRAPHY, PALYNOFACIES AND ORGANIC GEOCHEMISTRY ASSESSMENTS FOR HYDROCARBON GENERATION OF RATAWI FORMATION, IRAQ Thamer Khazal Al-Ameri 1 , Afrah Hasan Al-Ekabi 1, and Sameer Noori Al-Jawadi³ 1& 2: Department of Geology, College of Science, University of Baghdad. 3: Reservoirs and Oil Field Development Institute, Ministry of Oil E...

Microscopic and chemical analysis of 85 rock samples from exploratory wells and outcrops in northern Iraq indicate that limestone, black shale and marl within the Middle Jurassic Sargelu Formation contain abundant oil-prone organic matter. For example, one 7-m (23-ft.)-thick section averages 442 mg HC/g S2 and 439 °C Tmax (Rock-Eval pyrolysis analy...

Oil and gas fields in Iraq are distributed in geographic locations with giant oil fields toward the east and giant gas field toward the west of Iraq, except Diala region that have separated gas and oil fields in the north east. Farther more, their reservoirs are scattered in stratigraphic successions. On the basis of Crude oil analysis mainly by GC...

اوضحت الدراسة الحالية بالادلة العلمية من تحليلات حبوب الطلع (لقاح النباتات) البرية المنشأ ومتكيسات ذات السوطين البحرية الموطن في ترسبات الاثنان والعشرون الف سنة السابقة في الآبار المحفورة قرب شط العرب ونهري دجلة والفرات ومنخفض الرزازة (البحيرة حالياً) واهوار جنوب العراق وكهوف شمال العراق بالاضافة الى الدراسات التضاريسية من تفسير الصور الجوية ان الط...

This study was based on the results of geochemical analysis of 332 core and 10 cutting rock samples from Triassic Jurassic, Cretaceous, and Triassic age, in addition to seismic sections, logs, initial drilling results, final reports of oil wells, and previous studies. Constructing models from these data are to assess new oil reservoirs, evaluation,...

Findings of the oil source affinity for oil sample collected from shallow borehole already drilled for ground water purposes at the Sakran area, NE Haditha city, western Iraq, is performed in this study by biomarker studies with addition to the analysis of gravity map. Petroleum geochemistry study is carried out on oil sample. The terpane and stera...

Abstract This study was based on the results of geochemical analysis of 332 core and 10 cutting rock samples from Triassic Jurassic, Cretaceous, and Triassic age, in addition to seismic sections, logs, initial drilling results, final reports of oil wells, and previous studies. Constructing models from these data are to assess new oil reservoirs, ev...

Rock Eval pyrolysis, total organic carbon (TOC) analysis are carried on for the Upper Jurassic and the Cretaceous Formations of core samples from the Kifl, Morjan and Ekheither oil wells for dating and evaluation of the source rocks. Najmah_Sargelu Formation had generated quantity of oil hydrocarbons according their TOC weight percent of 0.5–6.7 wi...

Abstract: Rock Eval pyrolysis, total organic carbon (TOC) analysis are carried on for the Upper Jurassic and the Cretaceous Formations of core samples from the Kifl, Morjan and Ekheither oil wells for dating and evaluation of the source rocks. Najmah_Sargelu Formation had generated quantity of oil hydrocarbons according their TOC weight percent of...

72 core and cutting samples of the Ratawi Formation from selected wells of Central and Southern Iraq are analized for their sedimentary organic matters. Dinoflagellates, spores and pollen are extracted by palynological techniques from these rocks. Accordingly, Hauterivian and late Valanginian ages are suggested for their span of depositional time....

Palynological Application for the Palaeogeograohy of Tripolitania During the Silurian Time

Abstract Three exploration wells were selected near Mosul city (Az-29, Bm-15, and Kd-1) to study the palynozones and hydrocarbon generation potential of the Upper Triassic Baluti and Kurrachine Formations. This study was completed in two phases: The first was a study of palynofacies and their paleoenvironmental indications, degree of preservation,...

Six sections of 1–2.7-m depth contain ten sediment samples, each collected from the caves of Shanidar, Hawdian, and Hazar Merd with the nearby river valley sites of Zawi-Chemi, Gawra River, and Barda Balka, respectively, in North Iraq. They have been analyzed palynologically for their climatic significance and vegeta-tional cover during late Quater...

Systematic studies on acritarchs of Ordovician, Silurian and Devonian ages of North Africa, the British Isles and Podolia showed varieties of six types of wall structures and five types of excystment mechanism. These are well documented in this study and may form the main basis for a natural classification in future work.

Euphrates Flood Plain sediments are recorded in Barwana city which is 6 km south of Haditha City. Much vegetation and climatic and archaeological evidences in this study pointed to several stages of old human settlements in that area. Palynological evidences show the livelihood of those humans before the great Noah Deluge of the period 10,500 years...

Abstract Palynological analysis were done on 12 rock samples for Ratawi Formation from Rumailah well 131 and eight samples for the same formation from Zubair well 47, South Iraq, to extract sedimentary organic matters. Microscopic examination led to diagnose large numbers of spores, pollen, dinoflagellates (proximat, cavate, and chorate), foraminif...

Findings of the oil source affinity for oil sample collected from shallow borehole already drilled for ground water purposes at the Sakran area, NE Haditha city, western Iraq, is performed in this study by biomarker studies with addition to the analysis of gravity map. Petroleum geochemistry study is carried out on oil sample. The terpane and stera...

The paleoecological model of Aqra formation reflect one of the most important MaastrIchtian green house. The Kurdistan foreland basin is characterized by the presence of massive carbonates rich in giant rudists, gastropodes , echnoides. They are associated by large forminiferal assemblages comprised of several species related to the following gener...

Organic geochemical analysis and palynological studies of the organic matters of subsurface Jurassic and Lower Cretaceous Formations for two wells in Ajeel oil field, north Iraq showed evidences for hydrocarbon generation potential especially for the most prolific source rocks Chia Gara and Sargelu Formations. These analyses include age assessment...

Calculated C28/C29 sterane ratio, δC13 ‰ isotopes and plots of tricyclic terpane (C22/C21, C24/C23, and C26/C25 and hopane (C35S/C34S, C29/C30, and C31R/C30) of Najaf and Karbala Governorates oil seeps are used to assess the Jurassic Butmah, Sargelu, and Lower unit of Najmah formations in Kifle, West Kifle, Merjan, and Ekhaither fields western part...

Palynomorps of mainly dinoflagellate cysts are used in this study to assess age of Middle Jurassic (Bajocian-Bathonian) Sargelu, Upper Jurassic (Upper Callovian-Lower Oxfordian) Naokelekan, Upper Jurassic (Kimeridgian and Oxfordian) Gotnia and Barsarine, and Upper Jurassic-Lower Cretaceous (Beriassian-Tithonian) Chia Gara source rock Formations. Ma...

Structured organic matters of the Palynomorphs of mainly dinoflagellate cysts are used in this study for dating the limestone, black shale, and marl of the Middle Jurassic (Bajocian–Bathonian) Sargelu Formation, Upper Jurassic (Upper Callovian – Lower Oxfordian) Naokelekan Formation, Upper Jurassic (Kimeridgian and Oxfordian) Gotnia and Barsarine F...

Three exploration wells were selected near Mosul city (Az-29, Bm-15, and Kd-1) to study the palynozones and hydrocarbon generation potential of the Upper Triassic Baluti and Kurrachine Formations. This study was completed in two phases: The first was a study of palynofacies and their paleoenvironmental indications, degree of preservation, diversity...

With the start of our First International Conference on Iraqi Oil Studies, it will be worth to remember the first uses of oil in the history. Mesopotamian people of the Babylonian and Sumerian civilization of 6000 – 3000 years before present, have used asphalt as cementing material of blocks of their buildings and paving roads while oil were used b...

Gas chromatography, palynomorph constituents, and maturation are analyzed for oil samples of the Campanian Khasib and Tannuma Formations in the wells of East Baghdad oil field for biomarker studies, while palynomorph constituents and their maturation, Rock Eval pyrolysis, total organic carbon (TOC) analysis are carried on for the Upper Jurassic and...

This work presents new insights of the generation, quality and migration pathways of the hydrocarbons in the East Baghdad Oil Field.The Khasib and Tannuma formations in East Baghdad are considered as oil reservoirs according to their high porosity (15–23%) and permeability (20–45 mD) in carbonate rocks. The hydrocarbons are trapped by structural an...

قد تم جمع نماذج من ستة (6) مقاطع تربه تتراوح اعماقها بين متر واحد الى متران و سبعة سنتمترات (2,07) عمقاَ. ان مواقع هذه المقاطع هي كهوف شانيدار و هاوديان و هازارمرد و مواقع نهريه قريبه منها شملت زاوي جمي و نهركاوره و بارده بالكه بالتعاقب في شمال العراق. اجريت على هذه النماذج التحليلات البالينولوجيه للتعرف على اهميتها المناخيه و غطائها النباتي خلال ا...

The Lower Miocene Jeribe Formation in northern and NE Iraq is composed principally of dolomitic limestones with typical porosity in the range of 10–24% and mean permeability of 30 mD. The formation serves as a reservoir for oil and gas at the East Baghdad field, gas at Mansuriya, Khashim Ahmar, Pulkhana and Chia Surkh fields, and oil at Injana, Gil...

Organic geochemical analysis, palynology, and PetroMod software for the organic matters of subsurface Tithonian to Valanginian Sulaiy formation of six wells in Basrah Region, South Iraq showed evidences for hydrocarbon generation potential. These analyses include quantitative studies such as pyrolysis, fluorescence spectroscopy, and total organic c...