Results 121 to 130 of about 636 (179)

Asphaltene Deposition During CO2 Flooding

SPE Production & Facilities, 1999
SummaryIn this article we present results of dynamic and static precipitation tests to investigate the likelihood of asphaltene deposition problems in southeast Saskatchewan's Weyburn reservoir. Tests were conducted at the reservoir temperature and pressure conditions.
R. K. Srivastava, S. S. Huang, Mingzhe Dong   +2 more
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Asphaltene Deposition: Development and Application of Polymeric Asphaltene Dispersants

Proceedings of SPE Annual Technical Conference and Exhibition, 1991
ABSTRACT Asphaltene deposition has a significant detrimental effect on oilfield production. The key to effective treatment of asphaltene deposition is recognition of the problem. Asphaltenes can be identified and quantified using laboratory methods.
S. S. Schantz, W. K. Stephenson
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Asphaltene Deposition in Production Facilities

SPE Production Engineering, 1990
Summary Asphaltene deposition in the tubing and production facilities caused operational problems in the Ula reservoir. Laboratory and field studies were carried out to determine the point of asphaltene precipitation. Laboratory observations were made on the regimes of deposition as a function of decreasing pressure down to and below the
Ruksana Thawer, David C. A. Nicoll, Graeme Dick   +2 more
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Asphaltene Deposition

Canadian International Petroleum Conference, 2000
Introduction Production of heavy oils and paraffinic crude reserves often results in the deposition of organic solids, typically waxes or asphaltenes. The organic deposits can reduce the productivity of the reservoir as well as foul piping and surface equipment.
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Asphaltene Deposition in Capillary Flow

SPE Annual Technical Conference and Exhibition, 2013
Abstract Asphaltene precipitation and deposition may cause severe problems during production, transportation and processing of crude oil, hence affecting efficiency and cost of production in both upstream and downstream operations. During crude oil production they can deposit in rock reservoir pores, thus leading to possible blocking and
Christine Maria Seifried, Sadiqa Al Lawati, John P Crawshaw, Edo S Boek   +3 more
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Solubility Characterization of Asphaltene Deposits

SPE International Symposium on Oilfield Chemistry, 2015
Abstract In view of the great impact of asphaltene deposition in the petroleum industry, it is of paramount importance to estimate the tendency of crude oils and petroleum products towards precipitation as well as the potential amount of material that can precipitate. These are important parameters to consider in designing and monitoring
E. Rogel, C. Ovalles, M. Moir, J. Vien, H. Morazan   +4 more
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Controlling Asphaltene Deposition in Ageing Wells

SPE International Conference on Oilfield Chemistry, 2023
Abstract ADNOC Onshore produces asphaltene-unstable crudes subject to severe wellbore deposition, which is exacerbated by miscible WAG injection. In one of the oilfields, commissioned in 1973 and producing approximately 400,000 BPD from 4 key reservoirs a cluster of approximately 20 wells experienced severe asphaltene deposition.
Mark Grutters, Mohammed Alshamsi, Sameer Punnapala, Dalia Abdallah, Aamna Al-Ali   +4 more
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Asphaltene Deposition on Metallic Surfaces

Journal of Dispersion Science and Technology, 2004
Abstract The potential for asphaltene deposition in wellbores and flowlines is a major concern during design of oil production and transportation facilities, especially in deep‐water environments. Understanding the processes that control asphaltene deposition, especially the relationship between precipitation and deposition, can help to reduce the risk
Jianxin Wang, Jill S. Buckley, Jefferson L. Creek   +2 more
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Hydrodynamic Perspective on Asphaltene Agglomeration and Deposition

Energy & Fuels, 2015
In this work, we propose a detailed numerical model for asphaltene agglomeration and deposition, as induced by a resolved turbulent liquid carrier phase flow, in which transport, breakup, and re-entrainment are also taken into account. Asphaltene phase separation is represented by the appearance of adhesive primary particles, which bond upon collision ...
Schutte, K.C.J., Portela, L.M., Twerda, A., Henkes, R.A.W.M.   +3 more
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Alternative Methods in Preventing Asphaltene Deposition

Abu Dhabi International Petroleum Exhibition and Conference, 2010
Abstract Asphaltene deposition reduces oil productivity in afflicted wells and- in worst case- stops the wells from flowing due to complete plugging as a result of deposition inside the tubing. Currently, wellbore soaking and wire-line clean-up jobs are implemented to deal with asphaltene deposition.
Aamer Albannay, Tsutomu Masuzawa
openaire   +1 more source