25th International Meeting on Organic Geochemistry IMOG 2011

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O-17 Composition analysis of individual petroleum inclusions: Preliminary application in the reservoir-filling history of theTahe oil field, Tarim Basin, NW China Weijun Shi 1,2 , Maowen Li 1,2 , Binbin Xi 1,2 , Jin Xu 1,2 , Zhirong Zhang 1,2 , Jianzhong Qin 1,2 , Hong Jiang 1,2 1 Sinopec Research Institute of Petroleum Exploration and Production, Beijing, China, 2 Wuxi Institute of Petroleum Geology, Sinopec Research Institute of Petroleum Exploration and Production, Wuxi, China (corresponding author:shiwj0082@yahoo.com.cn) Individual hydrocarbon fluid inclusions can be extracted and verified under microscopic observation, different types of inclusions formed at different diagenetic stages can be then analyzed with a variety of techniques. This report presents the results of our recent project that uses an online gas chromatography-mass spectrometer (GC/MS) to study the chemical compositions of hydrocarbons in individual petroleum inclusions in carbonate reservoirs. Because of the small volume and the low concentration of hydrocarbons in individual inclusions, this work represents a significant technical breakthrough in the petroleum system study of the Tarim Basin, NW China.. Tahe oil field is situated in southwest of Arkekule Uplift, Tarim Basin. Crude oils are produced dominantly from the Ordovician carbonate reservoirs, overlain by Triassic-Lower Jurassic strata. Upper Carboniferous-Devonian and Upper-Middle Jurassic strata are absent in the study area. Ordovician carbonate core samples were collected from eastern Tahe oil field and analyzed for petroleum inclusions. Petroleum inclusions are extremely abundant in these samples, occurring mainly in calcite and quartz cements and calcite vein in carbonate rock matrix. Coeval aqueous and petroleum inclusions are readily identified and distinguished under the microscope by their fluorescence properties, occurrences and homogenization temperatures. Two types of petroleum inclusions are identified. The first and dominant type displays blue fluorescence, and the homogenization temperatures of the associated aqueous inclusions vary from 74 to 92 ooC. The second type of petroleum inclusions display yellow fluoresce, iand variable homogenization temperatures from 58℃ to 113℃ . Laser ablation supports the GCMS analysis of small samples (< 100 mm). It affords ultra-high sensitivity and an ability to separately analyse in situ microscopically discrete morphological entities. The new laser ablation GCMS facilities equipped with identical GC inlets have been recently established at the Wuxi Institute of Petroleum Geology, where the instrument uses a pulsed 193 nm excimer laser targeting the analyses of oil bearing inclusions. Excimer laser is the most suitable tool to open the fluid inclusions hosted in quartz or calcite and the high performance inlet ensures excellent products transfer . Results of our on-line GCMS analysis for individual inclusions indicate that C4-C30 hydrocarbons are present, and two types of petroleum inclusions bear distinctly different chemical compositions. The blue fluorescence inclusions have higher proportions of saturated hydrocarbons and gaseous hydrocarbons, but lower proportions of aromatic hydrocarbons than the yellow fluorescencing inclusions.. Normal alkanes in the blue fluorescencing inclusions show a unimodal distribution, with the maximum at n-C17, and those in the yellow fluorescencing inclusions have dual modal distribution, maximized at n-C15 and C25. In general, the yellow fluorescencing inclusions contain much more water soluble aromatic hydrocarbons than those in the blue ones, as indicated by the ratio of 1,7-dimethylnaphthalene/n- C14 alkane. TBecause the GC retention time of both compounds are similar, their ratio is unlikely to be affected by sample handling processes. Five samples were analyzed, and the results show that 1,7- DMN/nC14 ratios in the yellow fluorescencing inclusions are around 3.37, while those in the blue fluorescencing ones are only 0.46. It is reasonable to infer that the composition and the formation time are different for these two types of inclusions. On the basis of homogenization temperatures and fluorescence, in particular the composition,it can be delineated that there were two main stages of the petroleum-filling in the Tahe oil field. Compared with the blue fluorescence petroleum inclusions, the yellow ones have a lower maturity level, which may be caused by an early hydrocarbon charge. 75
O-18 Petroleum system analysis South East Abu Dhabi Peter Nederlof 1 , Özkan Huvaz 1 , Andy Bell 1 , Ahmed Khouri 2 , Abdelfatah El Agrab 2 , Raphael Rosell 2 , Artur Stankiewicz 3 1 Shell <strong>International</strong> E&P, Rijswijk, Netherlands, 2 ADCO, Abu Dhabi, United Arab Emirates, 3 Shell Abu Dhabi, Abu Dhabi, United Arab Emirates (corresponding author:p.nederlof@shell.com) The Abu Dhabi Company for Onshore Oil Operations (ADCO) is exploring for oil in a contract area in South East Abu Dhabi. In order to better understand the regional charge variations and to identify the best oil prospects, a large scale petroleum system analysis was carried out. The petroleum system analysis was carried out according to Shell‘s standards for Integrated Charge Evaluation (ICE). This comprises (1) a source rock evaluation, (2) a regional oil typing exercise and (3) a 3-D basin modelling study. The results from the oil analyses indicated that the petroleum systems in South East Abu Dhabi are different from the main petroleum system in Central Arabia, as illustrated by the compound specific isotope analysis of a suite of Abu Dhabi oils (Figure below). -24.0 -25.0 -26.0 -27.0 -28.0 -29.0 -30.0 -31.0 -32.0 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 The absence of the ‗regular‘ Hanifa hydrocarbon family is supported by the results from the source rock screening, which revealed that the Hanifa has little to no source potential in the immediate area. However, several source rock intervals were identified in the Cretaceous Thamama Group, in agreement with an earlier study by Taher (1997). The regional oil typing suggests that the oils in South East Abu Dhabi are generated in a separate kitchen area to the north and migrated up-dip in a southerly direction. The source rock maturation and hydrocarbon migration history was then modelled in 3-D Results from this study were used to rank the prospect portfolio and optimize the drilling sequence. 76
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25th Inter
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Dear Conference Delegates, Preface
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Monday 19 th September 2011 - Morni
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Monday 19 th September 2011 - After
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Tuesday 20 th September 2011 - Afte
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Wednesday 21 st September 2011 - Mo
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Wednesday 21 st September 2011 - Af
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13.40 - 15.05 Poster Session 4 (In
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Friday 23 rd September 2011 - Morni
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Poster Sessions (in Kongress-Saal)
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P-026 Comparison of comprehensive t
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P-052 Incorporation of Archaeal and
Page 25 and 26: P-081 Geochemical evidence for two
Page 27 and 28: P-108 Organic geochemistry and Meso
Page 29 and 30: P-133 Can we estimate catchment-sca
Page 31 and 32: P-157 Can laterally advected interm
Page 33 and 34: P-182 The influence of hydrogen on
Page 35 and 36: P-207 Biomarkers along a holocene s
Page 37 and 38: P-232 Some experimental results on
Page 39 and 40: P-261 Natural gas generation, migra
Page 41 and 42: P-288 Re/Os fractionation during ge
Page 43 and 44: P-314 Chemometric analysis of oil-o
Page 45 and 46: P-340 Atypical fluids in offshore s
Page 47 and 48: P-366 Organic geochemical character
Page 49 and 50: P-392 Environmental forensic study
Page 51 and 52: P-416 Developing analytical protoco
Page 53 and 54: P-442 Deep-sea benthic archaea recy
Page 55 and 56: P-464 Effects of within-catchment p
Page 57 and 58: Poster Session 4 - Thursday 22 nd S
Page 59 and 60: Monday Oral Presentations 58
Page 61 and 62: O-02 Melting history of West Antarc
Page 63 and 64: O-04 Insights about the marine nitr
Page 65 and 66: O-06 Eocene out-of-India dispersal
Page 67 and 68: O-08 An integrated lipid biomarker
Page 69 and 70: O-10 Sulfur species as facilitators
Page 71 and 72: O-12 Sulfur isotope systematic of i
Page 73 and 74: O-14 Exploring the diversity of arc
Page 75: O-16 Improved genetic characterizat
Page 79 and 80: O-19 The borolithochromes: boron-co
Page 81 and 82: O-21 Study of the stable isotopic c
Page 83 and 84: O-23 Novel applications of trace me
Page 85 and 86: O-25 The chemical structure of inso
Page 87 and 88: O-27 Coenzyme factor 430: abundance
Page 89 and 90: O-29 Influence of temperature on me
Page 91 and 92: O-31 The fate of collembola derived
Page 93 and 94: O-33 Empirical relationship between
Page 95 and 96: O-35 Biomarker evidence for the Lat
Page 97 and 98: O-37 The seco-oleananes: identifica
Page 99 and 100: O-38 Microbial communities associat
Page 101 and 102: O-40 The importance of geochemical
Page 103 and 104: O-42 Charge history and petroleum g
Page 105 and 106: O-44 Bacterial formation of (di)eth
Page 107 and 108: O-46 Development of a novel tool fo
Page 109 and 110: O-48 Evolution of petroleum composi
Page 111 and 112: O-50 Beyond Orgas- BP’s new predi
Page 113 and 114: O-52 Nitrogen isotopes of amino aci
Page 115 and 116: O-54 Biomarker and petrographic evi
Page 117 and 118: O-55 The organic geochemistry of ca
Page 119 and 120: O-57 Exploring mass extinction even
Page 121 and 122: O-59 Black shale formation by micro
Page 123 and 124: O-61 The significant impact of weat
Page 125 and 126: O-63 Simultaneous shifts in tempera
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O-65 Fluxes and isotope composition
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O-67 Biogeochemical impact of CO2 e
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Bacteria number ml-1 Bacteria numbe
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O-71 Aquathermolysis: pressure effe
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O-73 Designing tight-shale producti
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O-74 Tracing 13C-labeled inorganic
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O-76 Carbon fluxes in phylogenetica
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O-78 Fluid property prediction from
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O-80 Denitrifying bacteria as poten
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O-82 Tetraether lipid profiles in c
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O-84 Prediction of gas volume and d
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Monday Poster Presentations 148
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P-002 Structure and function of asp
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P-004 Preliminary study of acid deg
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P-006 Chemical and geochemical char
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P-008 High resolution measurement o
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P-010 Acidic fraction analyses of B
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P-012 Heteroatom-containing compoun
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P-014 Evaluation of hydropyrolysis
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P-016 Iron isotopic compositions of
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P-018 Evaluation of accelerated sol
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P-020 Improvement of HPLC-protocols
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P-022 Open-system hydrous pyrolysis
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P-024 The phenolic characterisation
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P-026 Comparison of comprehensive t
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P-028 Characterisation of lignin de
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P-030 Trace analysis of methylated
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P-033 An evaluation of petroleum so
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P-035 Contrasting macromolecular or
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P-037 Evolution of depositional env
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P-039 Organic carbon content and ch
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P-041 Organic geochemistry of entra
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P-043 Petrological and organic geoc
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P-045 Occurrence and geochemical ch
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P-047 Characterization of lignites
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P-049 Organic matter of Lower Permi
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P-051 Kerogen sulphur, hydrogen and
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P-053 Sulfur-bound compounds in fre
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P-055 Organic matter preservation i
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P-058 Characterization of aromatic
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P-060 Biomarkers parameters used to
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P-063 Origin of crude oil with high
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P-065 Molecular maturation of Bitum
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P-067 C21-C23 steroidal tricyclic t
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P-069 The age and palaeoenvironment
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P-071 Structural characterization o
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P-074 Discussion on appliance of 25
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P-076 Lanostanes as the new biomark
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P-079 Geochemistry of ―just gener
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P-081 Geochemical evidence for two
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P-083 Thermal maturity assessment o
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P-085 Flash pyrolysis-gas chromatog
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P-087 Petroleum geochemistry of the
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P-089 Addressing thermogenic and bi
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P-091 Investigation of oil stabilit
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P-093 Organic geochemistry, petrole
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P-095 Natural petroleum fractionati
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P-097 Geochemistry of low-boiling
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P-099 Oxygen-containing compounds i
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P-101 Formation of giant deep-burie
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P-103 Geochemical characteristics o
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P-105 Challenges on the origin of o
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P-107 Caldera of the Uzon volcano a
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P-109 A saga on organic geochemistr
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P-111 An integrated inorganic and o
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P-114 Hydrocarbon generation potent
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P-116 Marine transgressional event
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P-118 The cracking kinetics of two
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P-120 The generation potential of t
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P-122 Organic geochemical character
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P-124 Compositional features of org
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P-126 The value of generation hydro
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P-128 Investigation of fish pond ma
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P-130 Bituminous mixtures of Hakemi
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P-132 Combined � 13 C - �D anal
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P-134 Biomarkers preserved in cave
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P-136 Analysis of insoluble organic
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P-139 Role and nature of organic ma
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P-141 Biosurfactants - a green alte
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P-143 Phenolic compounds in water l
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P-145 Current level of the organic
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P-147 The d13C composition of indiv
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P-149 Targeted chemical and physica
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P-151 Cu(II) complexation with humi
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P-153 Differentiation of indoor and
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P-156 A detailed study of the intac
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P-158 Unusual distribution of long-
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P-160 Biomarker signatures of metha
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P-162 Lipid biomarkers and bulk bio
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P-164 Chemotaxonomic composition an
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P-166 The role of two submarine can
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P-168 Correlation of crenarchaea an
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P-170 Microbial activity and abunda
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P-172 Microbially mediated carbonat
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P-174 Distinct microbial inventorie
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P-176 Microbial consortium mediatin
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P-178 Diversity of microbial commun
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P-180 Inhibition of anaerobic oil d
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P-182 The influence of hydrogen on
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P-184 Have they lost their heads? D
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P-187 Paleohydrological changes on
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P-189 Paleoenvironmental variations
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P-191 Highly branched isoprenoid al
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P-193 A new global calibration for
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P-195 Molecular fossils and the lat
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P-197 Sediment trap and core top st
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P-199 Detection of environmental ch
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P-201 Carbon and hydrogen isotope b
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P-203 Biogeochemical processes in H
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P-205 Lipid biomarker analysis of f
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P-207 Biomarkers along a holocene s
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P-209 A comparison of methane emiss
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P-211 Paleocene-Eocene Thermal Maxi
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P-213 Biomarker proxies indicate si
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P-215 Distributions of long-chain d
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P-217 The Vinylguaiacol/Indole or V
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P-219 The age and palaeoenvironment
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P-221 Differences in distribution o
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P-225 The change of land plant deri
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P-227 Terrestrial organic matter in
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P-229 Geochemical peculiarities of
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P-231 Bacteriohopanepolyol content
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P-233 Branched GDGTs in the Yenisei
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P-235 Simulation of organic matter
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P-237 Nature of C29 sterols in the
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P-239 Differentiation of organic ma
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P-242 Changes of Rock-Eval HI, OI,
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P-244 Identification and distributi
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P-246 Carbon isotopes and lipid bio
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P-248 Comparison of soil organic ma
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P-250 Biomarker distribution along
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Wednesday Poster Presentations 388
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P-255 Gas source classification in
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P-257 The components and carbon iso
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P-259 Stable carbon isotopes of coa
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P-261 Natural gas generation, migra
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P-264 Natural gas geochemistry of t
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P-266 Geochemical and isotopic char
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P-269 Distribution of alkylbenzenes
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P-271 Terrestrial-derived biomarker
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P-273 Preservation of β-carotane i
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P-275 Aromatic hydrocarbons in oils
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P-277 Statistical analysis of diamo
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P-279 Characterization of biomarker
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P-281 The significance of novel A-n
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P-283 Correlation between compositi
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P-285 Understanding Fluid Inclusion
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P-287 The hydrocarbon occurrence an
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P-289 Correlation of crude oils res
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P-291 Geochemical parameters for un
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P-293 Hydrocarbon biomarkers in the
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P-295 Using diamondoids to unravel
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P-297 Significance of aromatic biom
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P-299 Drilling conditions making we
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P-301 Biomarker distributions and
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P-303 Evaluation of petroleum syste
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P-305 Geochemical indices of hydroc
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P-307 Basin modelling of the Hammer
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P-309 Comparative characteristics o
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P-311 High water pressure induced c
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P-313 Calibration of absolute matur
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P-315 Organic Geochemistry of Lower
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P-317 Laboratory simulation of vert
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P-319 The study of C1-C3 gas genera
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P-321 Hydrocarbon potential of Maik
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P-323 Paleoenvironment significance
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P-325 Origin of abnormal sonic resp
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P-327 Organic geochemistry and orga
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P-329 Characterising the deposition
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P-331 Organic-geochemical character
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P-335 Geochemistry of aqua-bitumoid
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P-337 Application of electrospray i
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P-339 Geochemical characterization
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P-341 Simulation studies on the ads
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P-343 Effective diffusivities of CO
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P-345 Oil Fingerprinting associated
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P-347 Strategies for the assessment
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P-349 Fluid pressure evolution and
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P-351 The releasing of covalently-b
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P-354 Sulfur isotope fractionation
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P-356 Controls on the kinetics of t
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P-358 Sulfur compounds in liquid pr
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P-360 High pressure pyrolysis of hy
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P-362 The reaction of elemental sul
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P-365 Geochemical evaluation of the
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P-367 Geochemical controls on shale
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P-369 Evolution of pores in organic
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P-371 Preliminary investigations in
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P-373 Geochemistry of coalbed metha
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P-375 Integration of basin modeling
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P-377 Oil shales occurring in Mongo
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Thursday Poster Presentations 508
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P-381 Permissible concentration of
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P-383 Accumulation and degradation
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P-385 Source determination and dept
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P-387 The use of phospholipid fatty
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P-389 Biogeochemical process studie
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P-391 Environmental forensics-recen
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P-395 Source characterization using
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P-397 Impact of different operating
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P-399 Resolving sources and preserv
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P-402 New insights into soil organi
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P-404 Amino sugars as biomarkers fo
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P-406 Biogeochemistry of lake Soppe
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P-408 Sea surface salinity reconstr
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P-410 Carbon cycling in lacustrine
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P-412 Radiocarbon distributions in
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P-414 European lake sediment calibr
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P-416 Developing analytical protoco
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P-418 Extreme intra- and intermolec
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P-420 � 2 H differences among lip
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P-424 Intact polar lipid and associ
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P-426 Bacterial versus archaeal act
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P-428 Study of microbial activity a
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P-430 New bacteriochlorophyll degra
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P-432 Thermally stable anammox biom
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P-434 Impact of a high CO2 partial
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P-436 Methane oxidation in the wate
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P-438 Lipid biomarkers of archaeal
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P-440 Estimation of endospore numbe
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P-442 Deep-sea benthic archaea recy
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P-444 Isolating and cultivating env
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P-446 Distribution of ammonia-oxidi
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P-448 Genetic and metabolic charact
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P-450 Proxies based on archaeal and
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P-453 Experimental palaeochemotaxon
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P-455 Long term cooling and punctua
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P-457 Molecular and isotopic eviden
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P-459 Long-term variations of palae
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P-461 Miocene to Pliocene environme
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P-463 Holocene paleoclimatic variat
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P-465 Hydrological and biogeochemic
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P-467 Molecular hydrogen isotope sy
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P-469 Impact of anaerobic methane o
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P-471 Integrating biomarker and mic
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P-473 Application of TEX86-paleothe
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P-475 Stable isotopes (C, S) and hy
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P-478 The first findings of 12- and
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P-480 The 3 P’s* and the Albian o
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P-482 Meter-scale oxygen gradients
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P-484 Coupling of Miocene-Pliocene
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P-486 New molecular marker and spec
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P-488 Paleoenvironmental changes fr
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P-491 Methoxy-serratenes as discrim
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P-493 Vegetation and soil organic m
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P-497 Decomposition of wheat straw
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P-499 The relationship between peat
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P-501 Land use and climatic effects
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Page 627 and 628:
P-505 Organic carbon composition an
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P-507 Dynamics of soil organic matt
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P-509 Exploiting isotopic, organic,
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P-511 The effect of soil moisture o
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P-513 Anaerobic oxidation of plant-
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P-515 Variability of terrestrially-
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Author Index 638
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Anselmetti Flavio S. O-63 Ansong Ge
Page 643 and 644:
Brinkhuis Henk P-200, P-468 Britton
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de Souza Carvalho Ismar P-017 Dedys
Page 647 and 648:
Francu Juraj P-037, P-266 Frank Ric
Page 649 and 650:
Hart Malcolm O-09 Hartkopf-Fröder
Page 651 and 652:
Jin Zhijun P-094 Jingjing Li P-179
Page 653 and 654:
Lausmaa Jukka O-58 Lavrieux Marlèn
Page 655 and 656:
Marsh Steven P-509 Marshall Chris O
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Nemchenko- Rovenskaya Alla P-112 Ne
Page 659 and 660:
Radovic Miljana P-152 Ramanathan AL
Page 661 and 662:
Schröder Jan P-020, P-029 Schubert
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Strelnikova Eugenia P-099 Stuart-Wi
Page 665 and 666:
Wakeham Stuart G. O-69 Walters Clif
Page 667 and 668:
Zhang Jing P-515 Zhang Jingru P-398
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25th International Meeting on Organic Geochemistry IMOG 2011

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