Potential of Palaeofluid Analysis for Understanding Oil Charge History

Hydrocarbon sources and charge history in the Southern Slope Region, Kuqa Foreland Basin, northwestern China

“…Fluid inclusions can provide valuable information on the reservoir pressure and temperature at the time of the fluid migration and entrapment as well as on the compositions of the fluids involved in diagenesis and may thus provide important insight on the mineral diagenesis and fluid dynamics within sedimentary basins (Burruss, 1987). Fluid inclusion entrapment temperature in conjunction with burial and thermal history plots can be used to determine the petroleum charge history (Lisk et al, 1998;Bhullar et al, 1999;Parnell, 2010). Both fluid inclusion petrography and microthermometry were used to determine petroleum inclusion types and the trapping temperatures of the coeval aqueous inclusions.…”

Multiple hydrocarbon charging events in Kuh‐e‐Mond oil field, Coastal Fars: evidence from biomarkers in oil inclusions

“…), and Mesozoic reservoirs in North Sea, West of Shetland and Jeanne d'Arc Basin in the UK (Parnell et al . ; Parnell ). They highlighted different histories in different oil fields (e.g.…”

Petroleum generation and charge history of the northern Dongying Depression, Bohai Bay Basin, China: Insight from integrated fluid inclusion analysis and basin modelling

“…The timing of petroleum charge may be determined by using fluid inclusion entrapment temperatures combined with burial (thermal) history plots, predictions of oil generation and migration from heat flow and subsidence models, or using the age of minerals precipitated before or after the oil charge (Parnell, 2010). During and after fluid migration in subsurface, including oil migration and entrapment in reservoirs, tiny fluids may be encapsulated as inclusions during mineral precipitation and/or microfracture annealing (Parnell et al, 2001).…”

“…Fluid inclusions therefore provide valuable information on the pressure and temperature of mineral growth at the time of the fluid migration and entrapment as well as on the compositions of the fluids involved in diagenesis and may provide important insight on the mineral diagenesis and fluid dynamics within sedimentary basins (Burruss, 1987). Despite the problems of dealing with typically tiny and rare inclusions, and with the uncertainties involving extrapolation of the results from small fluid samples to a basin scale, fluid inclusions are particularly useful in determining (1) the temperature and pressure history (Burruss, 1989;Swarbrick, 1994;Aplin et al, 2000); (2) the timing of petroleum migration/entrapment relative to the paragenesis (Mclimans, 1987;Rezaee and Tingate, 1997) and the history of petroleum charge (Oxtoby et al, 1995;Lisk et al, 1998;Parnell, 2010), including migration pathways, petroleum types, and sources ; and (3) the evolution in pore-water compositions, which may be critical for evaluating the possible influence of fluid flow upon mineral cementation (Burley et al, 1989;Wilkinson et al, 1998;Hartmann et al, 2000). Petroleum and aqueous inclusions can sometimes be trapped simultaneously in suitable mineral hosts during the heterogeneous migration of petroleum in water saturated reservoir rocks.…”