Displacement simulation experiments of migration effect on carbazole parameters of crude oil

Bibliographic Details
Title: Displacement simulation experiments of migration effect on carbazole parameters of crude oil
Authors: Shouyu ZHAO, Yaohui XU, Gang YAN, Xin HAN, Baolei LIU, Ming ZHONG, Shanshan LI
Source: Shiyou shiyan dizhi, Vol 46, Iss 2, Pp 402-411 (2024)
Publisher Information: Editorial Office of Petroleum Geology and Experiment, 2024.
Publication Year: 2024
Collection: LCC:Geophysics. Cosmic physics
LCC:Geology
Subject Terms: carbazole compound, displacement simulation, geochromatographic effect, crude oil migration, Geophysics. Cosmic physics, QC801-809, Geology, QE1-996.5
More Details: The investigation of oil and gas migration plays a vital role in the field of oil and gas exploration and development. Determining the direction and path of crude oil migration is challenging due to factors such as crude oil viscosity, complex chemical composition, and geological influences. Molecular geochemical parameters are a valuable tool for studying petroleum migration, although they can be affected by factors like compound formation, distribution, and maturation. One approach involves simulating these parameters under controlled laboratory conditions to isolate their individual effects. This study establishes a sandy-packed system to simulate oil-driven experiments and uses a C18 solid-phase extraction column to analyze carbazole compound fractions at different migration distances. The findings indicate that certain carbazole parameters, such as 1-/4-MCA, 1, 8-/1, 7-DMCA, 1, 8-/2, 4-DMCA, 1, 8-/2, 5-DMCA, and 1, 8-/2, 7-DMCA, increase significantly with transport distances. Notably, fully shielded and fully exposed isomers like 1, 8-/2, 4-DMCA and 1, 8-/2, 5-DMCA show enrichment levels of up to 63.97% and 35.50%, making them potential indicators of oil migration. However, parameters related to benzo [a]/[c] carbazole show inconsistencies with previous findings, likely due to intrinsic configurations and varying geological conditions that must be taken into account. The experimental results presented in this study offer insights for assessing specific reservoirs, with a recommendation to also consider molecular kinetics when selecting molecular parameters.
Document Type: article
File Description: electronic resource
Language: Chinese
ISSN: 1001-6112
Relation: https://doaj.org/toc/1001-6112
DOI: 10.11781/sysydz202402402
Access URL: https://doaj.org/article/51152e934fca428e995e3c1bc815f76e
Accession Number: edsdoj.51152e934fca428e995e3c1bc815f76e
Database: Directory of Open Access Journals
More Details
ISSN:10016112
DOI:10.11781/sysydz202402402
Published in:Shiyou shiyan dizhi
Language:Chinese