The comparison of effects of injection of natural/nitrogen gases on asphaltene precipitation process

Alireza Hajizadeh, Reza Rostami Ravari, Mahmood Amani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Asphaltene and wax depositions in the course of production of many Iranian reservoirs have become a serious problem. In order to investigate the effects of injecting rich and dry gases and also nitrogen, on the asphaltene precipitation process, a comprehensive research study was launched. The three phase equilibrium calculation of NGHIEM and his colleagues was used [6]. In the method pure asphaltene in the oil was considered as solid and the heavy part of the oil was split as precipitating and non-precipitating. The provided model was able to describe the phase behavior of reservoir oil encountered with a compositional disturbance caused by injecting light fluids into the reservoir during the production period. In this work, first, the natural depletion model of each case was constructed and then the changes of behavior by injecting rich and dry natural gases and also high nitrogen content gas were investigated. Also the changes in the onset of asphaltene precipitation for different injections were shown. The achieved results showed that the nitrogen gas had more moderate effect on precipitation process compared to more vigorous effect of dry and rich gases.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery
Pages103-115
Number of pages13
Volume1
Publication statusPublished - 2009
EventSPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery - Abu Dhabi, United Arab Emirates
Duration: 19 Oct 200921 Oct 2009

Other

OtherSPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery
CountryUnited Arab Emirates
CityAbu Dhabi
Period19/10/0921/10/09

Fingerprint

asphaltene
Nitrogen
Injection
Gases
Oils
nitrogen
gas
oil
Phase Equilibria
Natural Gas
Waxes
phase equilibrium
Phase behavior
Depletion
wax
Phase equilibria
natural gas
Natural gas
Disturbance
disturbance

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology
  • Modelling and Simulation

Cite this

Hajizadeh, A., Ravari, R. R., & Amani, M. (2009). The comparison of effects of injection of natural/nitrogen gases on asphaltene precipitation process. In Society of Petroleum Engineers - SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery (Vol. 1, pp. 103-115)

The comparison of effects of injection of natural/nitrogen gases on asphaltene precipitation process. / Hajizadeh, Alireza; Ravari, Reza Rostami; Amani, Mahmood.

Society of Petroleum Engineers - SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery. Vol. 1 2009. p. 103-115.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hajizadeh, A, Ravari, RR & Amani, M 2009, The comparison of effects of injection of natural/nitrogen gases on asphaltene precipitation process. in Society of Petroleum Engineers - SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery. vol. 1, pp. 103-115, SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery, Abu Dhabi, United Arab Emirates, 19/10/09.
Hajizadeh A, Ravari RR, Amani M. The comparison of effects of injection of natural/nitrogen gases on asphaltene precipitation process. In Society of Petroleum Engineers - SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery. Vol. 1. 2009. p. 103-115
Hajizadeh, Alireza ; Ravari, Reza Rostami ; Amani, Mahmood. / The comparison of effects of injection of natural/nitrogen gases on asphaltene precipitation process. Society of Petroleum Engineers - SPE/EAGE Reservoir Characterization and Simulation Conference 2009 - Overcoming Modeling Challenges to Optimize Recovery. Vol. 1 2009. pp. 103-115
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