Version 1
: Received: 29 December 2023 / Approved: 29 December 2023 / Online: 29 December 2023 (16:44:55 CET)
How to cite:
Ni, Z.; Zhang, W.; Liu, J.; Shi, S.; Wang, X.; Su, Y. Occurrence Characteristics of Gold in Crude Oil and Its Geological Significance. Preprints2023, 2023122290. https://doi.org/10.20944/preprints202312.2290.v1
Ni, Z.; Zhang, W.; Liu, J.; Shi, S.; Wang, X.; Su, Y. Occurrence Characteristics of Gold in Crude Oil and Its Geological Significance. Preprints 2023, 2023122290. https://doi.org/10.20944/preprints202312.2290.v1
Ni, Z.; Zhang, W.; Liu, J.; Shi, S.; Wang, X.; Su, Y. Occurrence Characteristics of Gold in Crude Oil and Its Geological Significance. Preprints2023, 2023122290. https://doi.org/10.20944/preprints202312.2290.v1
APA Style
Ni, Z., Zhang, W., Liu, J., Shi, S., Wang, X., & Su, Y. (2023). Occurrence Characteristics of Gold in Crude Oil and Its Geological Significance. Preprints. https://doi.org/10.20944/preprints202312.2290.v1
Chicago/Turabian Style
Ni, Z., Xue Wang and Yang Su. 2023 "Occurrence Characteristics of Gold in Crude Oil and Its Geological Significance" Preprints. https://doi.org/10.20944/preprints202312.2290.v1
Abstract
Oil and petroleum are strategic resources of great importance to national security. Petroleum and hydrothermal gold deposits may form together, with similar evolutionary trends in their formation, migration, and enrichment. Petroleum reservoirs and gold deposits are closely coupled under certain geological conditions. The solubility of gold in crude oil and its forms of occurrence are important in determining the mechanisms of interaction between gold and petroleum and in facilitating the recovery of gold from gold-bearing petroleum. In this study, the occurrence of gold in crude oil from the Linnan Depression in the Bohai Bay Basin, China, was studied using inductively coupled plasma–mass spectrometry and X-ray photoelectron spectroscopy. Concentrations of gold in crude oil from the Linpan and Shanghe oilfields averaged 44.5 ppb, which is well above the minimum concentration required for hydrothermal gold mineralization. Gold has an affinity with carbon, oxygen, and sulfur, and its concentration in crude oil is positively correlated with total acid and sulfur contents. We speculate that gold may exist in crude oil as complexes with organic acids or thiols, with crude oil thus being a transport medium for gold.
Keywords
crude oil; gold; affinity; organic acid
Subject
Environmental and Earth Sciences, Geochemistry and Petrology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
