IGGCAS OpenIR  > 地球与行星物理院重点实验室
Mapping hydrocarbon charge-points in the Wessex Basin using seismic, geochemistry and mineral magnetics
Abubakar, R.1,2; Muxworthy, A. R.1; Fraser, A.1; Sephton, M. A.1; Watson, J. S.1; Heslop, D.3; Paterson, G. A.4,5; Southern, P.6
2020
Source PublicationMARINE AND PETROLEUM GEOLOGY
ISSN0264-8172
Volume111Pages:510-528
AbstractThis study reports a multidisciplinary approach to determining hydrocarbon charge-points and migration in the Wessex Basin, southern England. Geochemical analysis of reservoir core material (Bridport Sandstone and Inferior Oolite) using gas chromatography-mass spectrometry (GC-MS), suggests that the oil in the Wessex Basin is from a single source, and that small variations in environmentally sensitive biomarkers are likely due to small differences in maturity or depositional conditions during the formation of the oil over millions of years. Using seismic data, basin modelling revealed two potential hydrocarbon migration pathways from the hanging wall of the Purbeck fault into the Sherwood Sandstone reservoir at Wytch Farm. One of these potential pathways is represented by cores termed Creech and the other Bushey Farm. To try to distinguish between the two potential pathways, cores were studied using mineral magnetic techniques. The magnetic signature was characterised using low-temperature ( < 50 K) magnetic measurements; this is because much of the magnetic signature was dominated by nanoparticles < 30 nm, which are thermally activated at room temperature and magnetically "transparent". Wells that contained considerable amounts of hydrocarbons were dominated by nanometric magnetite ( < 30 nm). Such particles are small enough to migrate with the oil, through pore spaces, which are of the order similar to 100 nm. Wells located at the fringes of large hydrocarbon accumulation had enhanced pyrrhotite-dominated magnetic signals. Of the two potential migration pathways, the mineral magnetic results suggest that the oil migrated through Creech rather than through Bushey Farm.
KeywordMagnetics Geochemistry Seismic Petroleum migration
DOI10.1016/j.marpetgeo.2019.08.042
Funding OrganizationPetroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship
WOS KeywordSOUTHERN ENGLAND ; EXPLORATION HISTORY ; ENGLISH-CHANNEL ; MUPE BAY ; OIL ; BIODEGRADATION ; TEMPERATURE ; SANDS ; REMAGNETIZATION ; EVOLUTION
Language英语
Funding ProjectPetroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK[NE/J01334X/1] ; National Natural Science Foundation of China[41574063] ; NERC Independent Research Fellowship[NE/P017266/1]
Funding OrganizationPetroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Petroleum Technology Development Fund, Nigeria (PTDF) Nigeria to RA ; Natural Environment Research Council (NERC) UK ; Natural Environment Research Council (NERC) UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NERC Independent Research Fellowship ; NERC Independent Research Fellowship
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000498747300032
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95792
Collection地球与行星物理院重点实验室
Corresponding AuthorAbubakar, R.
Affiliation1.Imperial Coll London, Dept Earth Sci & Engn, London, England
2.Ahmadu Bello Univ, Dept Geol, Zaria, Nigeria
3.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia
4.Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool, Merseyside, England
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
6.UCL, Dept Med Phys & Biomed Engn, London, England
Recommended Citation
GB/T 7714
Abubakar, R.,Muxworthy, A. R.,Fraser, A.,et al. Mapping hydrocarbon charge-points in the Wessex Basin using seismic, geochemistry and mineral magnetics[J]. MARINE AND PETROLEUM GEOLOGY,2020,111:510-528.
APA Abubakar, R..,Muxworthy, A. R..,Fraser, A..,Sephton, M. A..,Watson, J. S..,...&Southern, P..(2020).Mapping hydrocarbon charge-points in the Wessex Basin using seismic, geochemistry and mineral magnetics.MARINE AND PETROLEUM GEOLOGY,111,510-528.
MLA Abubakar, R.,et al."Mapping hydrocarbon charge-points in the Wessex Basin using seismic, geochemistry and mineral magnetics".MARINE AND PETROLEUM GEOLOGY 111(2020):510-528.
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