Results 51 to 60 of about 24,626 (266)

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

Deep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand, Ang Li, Wenbo Huang, Juanwen Chen, Qingshan Ma, Fangming Jiang   +5 more
wiley   +1 more source

An improved modeling approach for asphaltene deposition in oil wells including particles size distribution

Oil & Gas Science and Technology, 2018
There are several approaches to model Asphaltene deposition process in the wellbore. There are different assumptions to simplify the problem in the previous investigations for specific conditions, limiting the prediction range of the models. In this work,
Eyni Leila, Assareh Mehdi, Ayatollahi Shahab, Ranjbaran Mohammad   +3 more
doaj   +1 more source

FORMULASI DAN UJI KINERJA ASPHALTENE DISSOLVER DENGAN PENGGUNAAN SURFAKTAN ANIONIK DARI MINYAK SAWIT

Jurnal Teknologi Industri Pertanian, 2017
Asphaltene deposition is a major problem in petroleum industry causing slow production or even operational shutdown for removal of deposits. This research was conducted to obtain the best formulation of asphaltene dissolver to dissolve asphaltene ...
Felga Zulfia Rasdiana, Erliza Hambali, Pudji Permadi   +2 more
doaj   +1 more source

An Experimental Investigation and Prediction of Asphaltene Deposition during Laminar Flow in the Pipes Using a Heat Transfer Approach [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2017
In this study, asphaltene deposition from crude oil has experimentally and theoretically been studied using a test loop and an accurate temperature monitoring during a laminar flow.
Farhad Salimi, Shahab Ayatollahi, Mohsen Vafaie Seftie   +2 more
doaj   +1 more source

From Coal-Heavy Oil Co-refining Residue to Asphaltene-Based Functional Carbon Materials

ACS Sustainable Chemistry and Engineering, 2019
Asphaltene-based carbon fiber, needle coke, and porous carbon nanosheets were synthesized using the extracted asphaltene from coal-heavy oil co-refining residue.
Fangfang Qin, Wei Jiang, Guosong Ni, Jiashi Wang, Pingping Zuo, Shijie Qu, Wenzhong Shen   +6 more
semanticscholar   +1 more source

Synthesis of Coal Tar‐Based Hypercrosslinked Polymers via Friedel‐Crafts Alkylation: An Efficient Way to Access Carbon Electrode Material for Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Liquid coal tar (CT) is synthesized into hypercrosslinked polymers (HCPs) via the Friedel–Crafts alkylation, followed by oxidation‐carbonization to form disordered microporous carbon. The resulting CF2CT exhibits a high three‐electrode specific capacitance of 342 F g−1 at 1 A g−1, and the assembled symmetric supercapacitor illuminates a light sign ...
Zhichao Ren, Yanchun Pei, Xueyan Wu, Yan Lv, Rui Xue, Jixi Guo, Xiaogang Zhang   +6 more
wiley   +1 more source

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

Energy Science &Engineering, EarlyView.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou, Wenchao Jiang, Xiaolin Wu, Jian Gai, Liqiang Zheng, Jie Chen, Shuanghua Wang, Shouliang Lu, Bin Huang, Jichao Sun, Long Su   +10 more
wiley   +1 more source

Prediction of asphaltene precipitation upon injection of various gases at near-wellbore conditions: A simulation study using PC-SAFT EoS

Oil & Gas Science and Technology, 2019
The depletion of oil reservoirs and increased global oil demand have given impetus to employ various secondary and tertiary oil recovery methods. Gas injection is widely used in both secondary and tertiary modes, though the major problem associated with ...
Mahmoudvand Saba, Shahsavani Behnam, Parsaei Rafat, Malayeri Mohammad Reza   +3 more
doaj   +1 more source

Model molecules mimicking asphaltenes [PDF]

Advances in Colloid and Interface Science, 2015
Asphalthenes are typically defined as the fraction of petroleum insoluble in n-alkanes (typically heptane, but also hexane or pentane) but soluble in toluene. This fraction causes problems of emulsion formation and deposition/precipitation during crude oil production, processing and transport.
Sjøblom, Johan, Simon, Sebastien Charles, Xu, Zhenghe   +2 more
openaire   +3 more sources

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source