Chapter 13 Characterization of Asphaltenic Deposits from Oil Production and Transportation Operations

Carbognani, Lante; Espidel, J.; Izquierdo, Alejandro

doi:10.1016/s0376-7361(09)70284-5

Cited by 42 publications

(52 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6. Carbognani et al 7,8 reported similar results when comparing asphaltenes from stable and unstable crude oils based on field data. Fig.…”

Section: Structural Analysis and Models Of Asphaltene And Resinmentioning

confidence: 72%

“…Recent studies have pointed out that the nature of asphaltenes together with the nature of the dispersion medium are also important factors that determine the relative stability of crude oils and related materials. [6][7][8] A possible way of avoiding asphaltene precipitation is by adding an asphaltene stabilizer, i.e., an amphiphile. Asphaltene stabilizers or inhibitors act in a way similar to resins, peptizing the asphaltenes and keeping them in solution.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Asphaltene Stability in Crude Oils

Rogel

León

Espidel

et al. 2001

SPE Production &Amp; Facilities

View full text Add to dashboard Cite

The influence of different factors on the asphaltene stability in crude oils was evaluated. Compositional studies and structural characterization of resins and asphaltenes were carried out to study a possible relationship between these properties and asphaltene deposition behavior. Asphaltenes were obtained by precipitation with n-heptane and characterized by elemental analysis and spectroscopic techniques. Low hydrogen to carbon ratios, high aromaticities, and high condensation of aromatic rings were the main characteristics of the asphaltenes from unstable crude oils. According to these results, the stability behavior of the asphaltenes was influenced strongly by their structural characteristics. However, it was also found that stabilization by means of a commercial inhibitor was affected by the composition of the crude oil. In particular, a high content of basic functionalities in the crude oil can be related to the decrease of the inhibitor's effectiveness (dodecylbenzene sulphonic acid). Based on these findings, some useful suggestions applicable to the oilfield operations are made.

show abstract

“…6. Carbognani et al 7,8 reported similar results when comparing asphaltenes from stable and unstable crude oils based on field data. Fig.…”

Section: Structural Analysis and Models Of Asphaltene And Resinmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Asphaltene Stability in Crude Oils

Rogel

León

Espidel

et al. 2001

SPE Production &Amp; Facilities

View full text Add to dashboard Cite

show abstract

“…al. 7,8 reported similar results when comparing asphaltenes from stable and unstable crude oils based on field data. Fig.…”

Section: Structural Analysis and Models Of Asphaltene And Resinmentioning

confidence: 61%

“…But, this is not always the case. Recent studies have pointed out that the nature of asphaltenes together with the nature of the dispersion medium are also important factors that determine the relative stability of crude oils and related materials 6,7,8 .…”

Section: Introductionmentioning

confidence: 99%

Asphaltene Stability in Crude Oils

Rogel¹,

Leon²,

Espidel³

et al. 1999

Proceedings of Latin American and Caribbean Petroleum Engineering Conference

Self Cite

View full text Add to dashboard Cite

TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe influence of different factors on the asphaltene stability in crude oils was evaluated. Compositional studies and structural characterization of resins and asphaltenes were carried out in order to study a possible relationship between these properties and the asphaltene deposition behavior. Asphaltenes were obtained by precipitation with n-heptane and characterized by elemental analysis and spectroscopic techniques. Low hydrogen to carbon ratios, high aromaticities and high condensation of aromatic rings were the main characteristics of the asphaltenes from unstable crude oils. According to these results, the stability behavior of the asphaltenes was strongly influenced by their structural characteristics. However, it was also found that stabilization by means of a commercial inhibitor was affected by the composition of the crude oil. In particular, a high content of basic functionalities in the crude oil can be related to the decrease of the inhibitor's effectiveness (dodecylbenzene sulphonic acid). Based on these findings, some useful suggestions applicable to the oilfield operations are made.

show abstract

“…In the colloidal models, it is assumed that the asphaltene particles are held in suspension in the crude oil by resins and that the precipitation is not reversible. On the other hand, in the solution models, it is assumed that the asphaltene molecules are dissolved in the crude oil like other hydrocarbon molecules and form a homogeneous solution [4,[6][7][8][9][10][11][12] .…”

mentioning

confidence: 99%

Development of a Transient Model to Predict the Asphaltene Deposition along Tubing String during Production

Zamani¹,

Pourafshary²,

Riahi³

2014

Journal of Dispersion Science and Technology

View full text Add to dashboard Cite

In this paper, we present a comprehensive transient procedure to predict asphaltene deposition along the tubing string in the production system. For this approach, an accurate two-phase fluid flow model was coupled with a solid asphaltene precipitation model and a (semi-Lagrangian) particle deposition model in turbulent flow with the ability to predict the deposition of particles in vertical surfaces. The developed approach can be used to predict the possibility and location of the asphaltene precipitation in the wellbore during the production period due to the different production parameters. Downloaded by [University of Southern Queensland] at 03:35 10 October 2014 2

show abstract

Chapter 13 Characterization of Asphaltenic Deposits from Oil Production and Transportation Operations

Cited by 42 publications

References 34 publications

Asphaltene Stability in Crude Oils

Asphaltene Stability in Crude Oils

Asphaltene Stability in Crude Oils

Development of a Transient Model to Predict the Asphaltene Deposition along Tubing String during Production

Contact Info

Product

Resources

About