Standards for Selection of Surfactant Compositions used in Completion and Stimulation Fluids

Petrakov, D.G.; Loseva, Anna; Alikhanov, Nazim; Jafarpour, H.

doi:10.5829/ije.2023.36.09c.03

Cited by 3 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second approach is based on the theory of turbulence: the balance between the energy required to weigh particles and the energy released when the turbulent vortices are stratified. Models Oroskari and Turian (37), Danielson (38) and others (39)(40)(41) are the most widespread.…”

Section: Mathematical Models Of Critical Flow Velocity In Horizontal ...mentioning

confidence: 99%

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

Tananykhin

2024

IJE

View full text Add to dashboard Cite

The paper presents a new scientifically based approach for the selection of sand control technology, which is dedicated to enhance the efficiency of the development of unconsolidated reservoirs. Established laboratory and methodological complexes for physical simulating of the sand producing process were analyzed in order to obtain new knowledge and confirm the available theories. All of them have their advantages and disadvantages, but their simultaneous application revealed characteristic dependencies between the sand production and the studied parameter (grain size distribution, pressure drop, clay content, water cut, gas/oil ratio, etc.). Author proposed concepts of mathematical apparatus improvement to increase the quality of assessing the ability of formation fluids to transport particles of different grain size distribution within the formation, as well as in the inner part of tubing. The effect of each of the characterizing factors on suspended solids concertation (SSC) was studied as a result of more than 300 laboratory experiments. According to the observation, there is a sharp decrease in SSC after the first stage (sampling). Thus, the author determined that the main inflow of mechanical impurities occurs during flow stimulation and after shutdowns. In conclusion, author substantiated the method for limiting sand production using polymers with shape memory based on the results of the performed set of tests. Proposed method allows limited passage of particles with diameter less than 50 µm, which creates conditions for noncolmaticity of screen while maintaining geomechanical stability of bottom-hole formation zone.

show abstract

Section: Mathematical Models Of Critical Flow Velocity In Horizontal ...mentioning

confidence: 99%

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

Tananykhin

2024

IJE

View full text Add to dashboard Cite

show abstract

“…Immediately before injecting a working solution of flocculant into the cylinder, it was made and left until the emulsion had completely dissolved (the minimum time required is 1.5 h). The technological regulations recommend the use of an additive in the solution in the form of sodium hydroxide in the amount of 10 g per 1 L of flocculant solution, which increases the efficiency of interaction of pulp particles with the flocculant due to the formation of an alkaline environment and leads to a reduction in the amount of polymer used [36,37].…”

Section: Verification Of the Algorithmmentioning

confidence: 99%

Modeling of Particle Size Distribution in the Presence of Flocculant

Fedorova,

Pupysheva,

Morgunov

2024

Symmetry

View full text Add to dashboard Cite

This study presents a mathematical description of the solid fraction aggregation process in the presence of a flocculant and its result. The basis is a population balance equation. The model is realized in Python language. Verification was carried out using red mud from the investigated enterprise; Flomin AL P 99 VHM was used as a flocculant. The mean square deviation for the parameter “mean aggregate diameter” is equal to 19.88 μm. The time required for the model calculation is about 3 min. The time spent on modeling depends on the number of calculation channels. In this study, 40 channels (20 with PSD source data, and 20 with empty values required for the calculation) were used for the calculation. The time spent on the model calculation is much shorter than the inertia via each of the communication channels for the studied symmetric radial type thickener. A user interface is developed, where the input parameters are the initial pulp particle size distribution, viscosity and density of pulp in the thickener, particle surface area, concentration and flow rate of flocculant, concentration of solid particles, inner diameter and height of the feed well, and simulation time. The result of the simulation is particle size distribution in the feed well of the washer and the mean flocculus diameter.

show abstract

“…The most effective technological approach for ARPD management involves the use of chemical inhibitors with a crucial focus on minimizing inhibitor loss (29) due to adsorption by the surrounding rock formations (30). A comprehensive methodology for mitigating ARPD formation in the wellbore area has been proposed (31), incorporating well washing with specialized solvents to dissolve existing deposits.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Nucleation Time of Gas Hydrates in Presence of Paraffin During Mechanized Oil Production

Korobov,

Vorontsov,

Buslaev

et al. 2024

IJE

View full text Add to dashboard Cite

The objective of this study is to investigate the nucleation timing of gas hydrate molecules in oil flows. This research focuses on examining how paraffin particles impact the formation timing of hydrate deposits during the mechanical production of oil. A thorough comprehension and control over the formation of organic deposits within the wellbore can substantially mitigate equipment maintenance expenses, enhance the safety and consistency of production, and bolster the economic viability of extracting hydrocarbons. The initial segment of the paper outlines a methodology for identifying the formation depths of gas hydrates and asphaltene-resin-paraffin deposits (ARPD) in operational oil wells through the resolution of thermobaric differential equation systems. Subsequent laboratory experiments were conducted to assess the nucleation timing of gas hydrates in the presence of paraffin. These tests were performed in a specialized high-pressure autoclave that enables the establishment of requisite thermobaric conditions. An internal agitator in the autoclave facilitates the needed dispersion within the system to emulate well flow conditions. Experimental findings revealed that paraffin particles impede the formation of gas hydrate deposits and decelerate their nucleation process. Notably, a 3% increase in paraffin concentration within the mixture was observed to prolong the nucleation timing of gas hydrates by a factor of nine. Based on the review of available literature, it is deduced that further comprehensive investigations are essential for the advancement of a temporal model governing the operational dynamics of production wells under the influence of gas hydrate and ARPD formation.

show abstract

Standards for Selection of Surfactant Compositions used in Completion and Stimulation Fluids

Cited by 3 publications

References 19 publications

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

Modeling of Particle Size Distribution in the Presence of Flocculant

Analysis of Nucleation Time of Gas Hydrates in Presence of Paraffin During Mechanized Oil Production

Contact Info

Product

Resources

About