Results 131 to 140 of about 636 (179)

Asphaltene Deposition and Fouling in Reservoirs

Offshore Technology Conference, 2017
In this paper, we will highlight some of the impactful collaborative efforts completed within DeepStar Phase XII of the X200 Flow Assurance committees leading to the development, integration and deployment of novel technologies. This project aims to establish in what cases asphaltene deposition in reservoirs is a real ...
Mohammad Tavakkoli, Peng He, Pei-Hsuan Lin, Sara Rezaee, Maura Puerto, Rocio Doherty, Jefferson Creek, Jianxin Wang, Greg Kusinski, Joseph Gomes, Walter Chapman, Sibani Lisa Biswal, Francisco M. Vargas   +12 more
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Modeling Asphaltene Deposition in Production Pipelines

Energy & Fuels, 2006
A multiphase (oil/gas/asphaltene/water) multicomponent hydrodynamic model is proposed to represent the phenomenon of asphaltene deposition in producing wells. The model is based on the assumption that asphaltene particles are thermodynamically formed at a given set of p−T−x conditions during the flow, and both molecular diffusion and shear removal are ...
E. Ramirez-Jaramillo, C. Lira-Galeana, O. Manero   +2 more
openaire   +1 more source

New Correlation for Predicting Asphaltene Deposition

SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, 2015
Abstract Precipitation and deposition of hydrocarbon solids such as asphaltenes and wax are some of the major challenges facing the oil and gas processing and transportation industry. Deep-water, high pressure and high temperature (HPHT) environment are currently being explored for meeting the ever increasing energy demand and operating ...
A. A. Sulaimon, K. Govindasamy
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Influence of asphaltene on wax deposition: Deposition inhibition and sloughing

Fuel, 2020
Abstract Asphaltenes are the heaviest and most polar constituents of crude oils. The influences of asphaltene on wax deposition were investigated with model oils utilizing a Taylor-Couette device. The composition and rheological properties of the deposits and the chemical properties of the asphaltenes entrained in the deposits were analyzed.
Huiyuan Li, Jinjun Zhang, Qinggong Xu, Chengyu Hou, Yadong Sun, Yu Zhuang, Shanpeng Han, Changchun Wu   +7 more
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Comparing asphaltenes: Deposit versus crude oil

Fuel, 2015
Abstract Changes in operating conditions such as pressure, temperature and composition of the oil can trigger asphaltene deposition during oil recovery operations. In the present work, an asphaltene deposit obtained during cleaning of a submersible pump was analyzed. The oilfield was under CO2 flooding as secondary EOR process.
Estrella Rogel, Toni Miao, Janie Vien, Michael Roye   +3 more
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Controlling Asphaltene Deposition in Oil Wells

SPE Production & Facilities, 1995
Summary The deposition of asphaltenes in oil producing formations and production systems has caused problems for years. Selection of chemical control agents in the past has been limited to bulk dissolution studies on samples retrieved from production systems.
D. C. Thomas, H. L. Becker, R. A. Del Real Soria   +2 more
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A Fundamental Study of Asphaltene Deposition

Energy & Fuels, 2013
Asphaltenes are a solubility class of petroleum crude oil that can destabilize and deposit in both upstream and downstream processes. In this study, asphaltene deposits were generated in metal capillaries by heptane addition to crude oils, and it was found that deposition is caused by submicrometer asphaltene aggregates.
Michael P. Hoepfner, Vipawee Limsakoune, Varun Chuenmeechao, Tabish Maqbool, H. Scott Fogler   +4 more
openaire   +1 more source

Combined Asphaltene Aggregation and Deposition Investigation

Energy & Fuels, 2016
This study discusses experimental and modeling results of asphaltene aggregation and deposition using various n-alkanes as precipitants to destabilize asphaltenes from a crude oil. The amount of asphaltenes precipitated as a function of precipitant carbon number and concentration was obtained after monitoring the slow kinetic aggregation process.
Wattana Chaisoontornyotin, Nasim Haji-Akbari, H. Scott Fogler, Michael P. Hoepfner   +3 more
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The Asphaltene and Wax Deposition Envelopes

Fuel Science and Technology International, 1996
ABSTRACT Asphaltene and wax phase behavior is quite different than the conventional “PVT” phase behavior. Asphaltenes exhibit a behavior at some thermodynamic states called flocculation. That is, asphaltene particles or micelles aggregate or flocculate into larger aggregates or flocs.
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Do Asphaltene Deposition Troubles Happen in Low Asphaltene Content of Crude Oil?

Abu Dhabi International Petroleum Conference and Exhibition, 2012
Abstract An extensive CO2 EOR study was done for one of a super giant oil field reservoir in offshore Abu Dhabi. This study aimed to evaluate the effectiveness of CO2 injection to the target reservoir and to address uncertainties based on laboratory and simulation studies.
Katsumo Takabayashi, Haruo Maeda, Yoshihiro Miyagawa, Masayuki Ikarashi, Hiroshi Okabe, Satoru Takahashi, Hamad Rashed Al-Shehhi, Hamdan Mohamed Al-Hammadi   +7 more
openaire   +1 more source