Development of methods to collect and analyze gasoline range (C5–C12) hydrocarbons from seabed sediments as indicators of subsurface hydrocarbon generation and entrapment

Abrams, Michael A.; Dahdah, Nicola F.; Franců, Eva

doi:10.1016/j.apgeochem.2009.07.009

Cited by 22 publications

(16 citation statements)

References 12 publications

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“…It has been observed that migrated gasoline-range hydrocarbon compositions can vary from those found in reservoir oils (Abrams et al 2009). The origins of gasoline-range (volatile) hydrocarbons (C 5 to C 12 ) in near-surface sediments are difficult to determine due to limited knowledge of inputs from recent organic matter.…”

Section: Chemistrymentioning

confidence: 99%

Oil and Gas Seeps in the Gulf of Mexico

Kennicutt

2017

Habitats and Biota of the Gulf of Mexico: Before the Deepwater Horizon Oil Spill

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Section: Chemistrymentioning

confidence: 99%

Oil and Gas Seeps in the Gulf of Mexico

Kennicutt

2017

Habitats and Biota of the Gulf of Mexico: Before the Deepwater Horizon Oil Spill

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“…Sediment pass quickly through a fixed blade breaking apart sediment sample and releasing interstitial gases into disrupter container headspace without transferring sample from the shipboard storage container to a blender. The sample transfer has been shown to result in differential volatile fractionation (Abrams et al, 2009).…”

Section: Sample Analysis Screening Analysis Programmentioning

confidence: 99%

“…Conventional headspace gas analysis is the most common sediment extraction method used to evaluate gasoline plus range hydrocarbons in unconsolidated shallow marine sediments. This method has been proven to work with fresh macroseepage samples but is not an effective extraction method for low level seepage samples (Abrams et al, 2009). A second method used by industry is the Gore Sorber® module.…”

Section: Gasoline Plus Range Hydrocarbons (C 5 To C 12 )mentioning

confidence: 99%

Best Practices for the Collection, Analysis, and Interpretation of Seabed Geochemical Samples To Evaluate Subsurface Hydrocarbon Generation and Entrapment

Abrams

2013

All Days

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The detection and measurement of migrated hydrocarbons in near-surface marine sediments is a relatively routine exploration method to investigate issues of hydrocarbon charge. The presence of near-surface migrated thermogenic hydrocarbons provides strong evidence that an active petroleum system is present, as well as critical information on source, maturity and migration pathways. There are multiple methods currently applied by industry to collect, prepare, extract, and analyze migrated hydrocarbons within near-surface marine sediments.

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“…1摇实验方法传统的油气化探方法主要是以 C 1 -C 5 烃类为研究对象,因为这部分烃类为气态烃,从油气微渗漏理论方面来讲,它们更容易从油气藏中向上运移到地表或近地表土壤或海底沉积物中。然而,由于 C 6 -C 12 部分的烃组分属于挥发或半挥发烃类,它们也能沿着含油气盆地的一些关键的油气运移通道向上渗漏到近地表的土壤或海底沉积物中 [1][2][3] 。如果说土壤或沉积物中的 C 1 -C 4 烃类还有可能是细菌作用形成的 [4] ,那么 C 6 -C 12 的烃组分则应该完全为热成因的 [5] 认为 HS-SPME 可以用来检测样品中的汽油烃组分,并具有很大的应用前景。胡斌等 [7] 通过比较 SPME 技术与吸附丝法不同之处, 并总结该技术在油气相关有机物 ( 如烷…”

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Application of headspace single-drop microextraction (HS-SDME) technique in geochemical exploration for petroleum

Zhao¹,

Liang²,

Xiong³

et al. 2015

Petroleum geology experiment

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All surface geochemical exploration methods for oil and gas are based on the theory that hydrocarbons generated and trapped at depth seep in varying but detectable quantities to the surface, and the main components detected are usually C 1 -C 5 hydrocarbons. The C 1 -C 4 hydrocarbons could come from degradation of organic mat鄄 ter by microbial organisms, while the gasoline range hydrocarbons are totally sourced from thermogenic proces鄄 ses. Therefore, the detection of gasoline range hydrocarbons in soils or sediments could be the most direct evi鄄 dence for hydrocarbon seepage and the method used to detect the C 6 -C 12 range hydrocarbons could be a useful technique for surface geochemical exploration method for petroleum. However, because the concentration of gaso鄄 line range hydrocarbons in the soils or sediments are usually very low, and the present techniques for detecting those hydrocarbons are not adequate, the gasoline range hydrocarbons have seldom been used in surface geo鄄 chemical exploration for oil and gas. In this study, the headspace single鄄drop microextraction ( HS鄄SDME) tech鄄 nique coupled with gas chromatography鄄flame ionization detection ( GC鄄FID) was employed to determine C 6 -C 12 gasoline range hydrocarbons in well drilling mud sample. The results show that the C 6 -C 12 hydrocarbons in the samples could be detected by HS鄄SDME, and the reservoir depth determined by the concentration of C 6 -C 12 hy鄄 drocarbons was the same with the actual petroleum reservoir depth, which indicated further that the HS鄄SDME method could be used in geochemical exploration for petroleum.

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Development of methods to collect and analyze gasoline range (C5–C12) hydrocarbons from seabed sediments as indicators of subsurface hydrocarbon generation and entrapment

Cited by 22 publications

References 12 publications

Oil and Gas Seeps in the Gulf of Mexico

Oil and Gas Seeps in the Gulf of Mexico

Best Practices for the Collection, Analysis, and Interpretation of Seabed Geochemical Samples To Evaluate Subsurface Hydrocarbon Generation and Entrapment

Application of headspace single-drop microextraction (HS-SDME) technique in geochemical exploration for petroleum

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