Group-type characterization of crude oil and bitumen. Part I: Enhanced separation and quantification of saturates, aromatics, resins and asphaltenes (SARA)

KKA Bissada, J Tan, E Szymczyk, M Darnell, M Mei - Organic geochemistry, 2016 - Elsevier
Compositional analysis of crude oils is very important along the entire value chain of the oil
industry, from upstream to midstream and downstream operations. An essential step of this …

Preparation of a kind of reactive pour point depressant and its action mechanism

T Liu, L Fang, X Liu, X Zhang - Fuel, 2015 - Elsevier
A series of reactive pour point depressants (PPD) with anhydride group were prepared, and
their action mechanism had been investigated by Fourier transform infrared spectroscopy …

Molecular markers, carbon isotopes, and rare earth elements of highly mature reservoir pyrobitumens from Sichuan Basin, southwestern China: Implications for …

Z Chen, BRT Simoneit, TG Wang, Z Ni, G Yuan… - Precambrian …, 2018 - Elsevier
Abstract The Moxi–Gaoshiti Bulge of the Sichuan Basin in southwestern China is unique
because it provides insights into the geochemistry of Lower Cambrian reservoir bitumens …

Source characterization of highly mature pyrobitumens using trace and rare earth element geochemistry: Sinian–Paleozoic paleo-oil reservoirs in South China

C Shi, J Cao, J Bao, C Zhu, X Jiang, M Wu - Organic Geochemistry, 2015 - Elsevier
Understanding the relationships between migrated hydrocarbons and source rocks under
highly mature conditions (ie, pyrobitumen–source correlation) is a critical and challenging …

Substantial enhancement of heavy crude oil dissolution in low waxy crude oil in the presence of ionic liquid

S Velusamy, S Sakthivel, RL Gardas… - Industrial & …, 2015 - ACS Publications
Enormous production losses have ascended in diverse operational and technical issues
due to deposition of heavy crude oil (HCO) in various production components like tubing …

Spectroscopic investigations to understand the enhanced dissolution of heavy crude oil in the presence of lactam, alkyl ammonium and hydroxyl ammonium based …

S Sakthivel, RL Gardas, JS Sangwai - Journal of Molecular Liquids, 2016 - Elsevier
The deposition of crude oil in various production and surfaces facilities such as oil storage
tanks in the form of tank-bottom sludge, pipeline deposition, skin formation at the near well …

Experimental study of asphaltene deposition in transparent microchannels using the light absorption method

Y Zhuang, A Goharzadeh, YJ Lin, YF Yap… - Journal of Dispersion …, 2018 - Taylor & Francis
This study focuses on an experimental investigation of asphaltene deposition in a vertical
transparent microchannel. Heptane-induced asphaltene precipitation is utilized to …

The effect of a kind of hyperbranched polyester with different carbon length on flowability for crude oil

H Quan, L Chen, Z Huang, J Wang, C Zheng - Fuel, 2018 - Elsevier
In this work, using the pentaerythritol with phthalic anhydride and different long-carbon chain
alcohols to synthesize a kind of hyperbranched polyester (FI) as flow improver for crude oil …

Synthesis and mechanism analysis of a new oil soluble viscosity reducer for flow improvement of Chenping heavy oil

Y Ren, S Xia - Chinese Journal of Chemical Engineering, 2022 - Elsevier
Oil soluble viscosity reducers have gradually attracted the attention of petrochemical
research due to their cleanliness and high efficiency. Considering the high viscosity and non …

Upgrading heavy crude oils and extra heavy fractions in supercritical methanol

MK Khan, W Kwek, J Kim - Energy & Fuels, 2017 - ACS Publications
Herein, we report a method of upgrading unconventional crude oils and extra heavy
fractions using supercritical methanol (scMeOH) and compare it to supercritical water …