A general method for simulating reactive dissolution in carbonate rocks with arbitrary geometry

Liu, Piyang; Couples, Gary Douglas; Ye, Jun; Huang, Zhaoqin; Song, Wenhui; Ma, Jingsheng

doi:10.1007/s10596-018-9746-4

Cited by 8 publications

(13 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A relatively large number of numerical simulations of the dissolution process have been performed over the years [6,12,13,[27][28][29], in various setups and geometries. For the present study, the most relevant are the studies in radial geometry [13,18,19,30]. Most of these studies, however, are performed for relatively large heterogeneities of the medium, which makes it harder to observe the initial wavelengths of the instability (for the discussion of the interplay of heterogeneities in the initial conditions and instability mechanism, see Ref.…”

Section: Comparison With Numerical Simulationsmentioning

confidence: 99%

“…In their derivation, Chadam et al have considered rectangular geometry with a pressure gradient applied along the length of the system. However, in many cases (e.g., in the acidization of oil reservoirs) the reactive fluids are injected through a well and thus the relevant geometry is radial rather than rectangular [3,13,[16][17][18][19][20]. Motivated by this, here we carry out the linear stability analysis of the reactive-infiltration problem in radial geometry, with the fluid injection at the center of the system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reactive-infiltration instability in radial geometry: From dissolution fingers to star patterns

Grodzki

Szymczak

2019

Phys. Rev. E

View full text Add to dashboard Cite

We consider the process of chemical erosion of a porous medium infiltrated by a reactive fluid in a thin-front limit, in which the width of the reactive front is negligible with respect to the diffusive length. We show that in the radial geometry the advancing front becomes unstable only if the flow rate in the system is sufficiently high. The existence of such a stable region in parameter space is in contrast to the Saffman-Taylor instability in radial geometry, where for a given flow rate the front always eventually becomes unstable, after reaching a certain critical radius. We also examine the similarities between the reactive-infiltration instability and the similar instability in the heat transfer, which is driving the formation of star-like patterns on frozen lakes.

show abstract

Section: Comparison With Numerical Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reactive-infiltration instability in radial geometry: From dissolution fingers to star patterns

Grodzki

Szymczak

2019

Phys. Rev. E

View full text Add to dashboard Cite

show abstract

“…All the values remain fixed unless otherwise stated. Because the effect of injection rate, acid properties and rock heterogeneous on dissolution patterns and breakthrough volume has been studied in detail in previous literature [6,27,32,44,[50][51][52][53][54], it will not be repeated here. This work only focuses on the influence of non-Darcy flow on the dissolution structure and breakthrough volume.…”

Section: Results and Analysismentioning

confidence: 99%

“…The governing equations are discretized using the finite volume method [32]. In order to avoid the instability issues, the model is solved implicitly in time, i.e.…”

Section: Dimensionless Modelmentioning

confidence: 99%

“…Based on previous works, Panga et al [26] presented a continuum model that can capture both the kinetic and mass transfer controlled regime simultaneously. After that, the continuum model has been widely used to investigate the effect of rock or fluid properties, including flow geometry (linear and radial) [30][31][32], completion methods [33], the type of injected acid (hydrochloric acid and self-diverting acid) [34][35][36][37][38], medium heterogeneity (the presence of vugs and fractures) [20,23,39,40], and reservoir temperature [41][42][43] on wormhole propagation and optimal injection volume.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Three-dimensional simulation of acidizing process in carbonate rocks using the Darcy–Forchheimer framework

Liu

Ren

Kong

et al. 2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

Self Cite

View full text Add to dashboard Cite

Acidizing is an economical and effective practice to remove the near wellbore damage, which is performed by injecting acid into the formation through the wellbore. The injected acid dissolves the rock, by which the permeability nearby the wellbore can be improved. For a carbonate reservoir, the injected acid dissolves some of the minerals and some narrow and long channels, named wormholes, are formed then. These wormholes can bypass the damaged zone and hence improve the productivity of the well. The process for acid dissolving rocks involves complex physicochemical change, including the chemical reactions at the pore scale and the fluid flow at Darcy scale. In this paper, a 3-D reactive flow model with non-Darcy framework is developed based on the two-scale continuum model, and is solved by using the finite volume method. Five types of dissolution patterns, named face dissolution, conical wormhole, wormhole, ramified wormhole, and uniform dissolution, are obtained as the injection velocity increases. The effect of non-Darcy flow on dissolution pattern and breakthrough volume is analyzed. It is found that there is no effect of non-Darcy on dissolution structure and breakthrough volume when the injection velocity is very low. However, when the injection velocity is very high, the generated wormhole has more branches when using the Forchheimer equation than using the Darcy equation. Moreover, the optimal injection velocity is found to be the same whether considering the non-Darcy flow or not.

show abstract

Modeling and analysis of the acidizing process in carbonate rocks using a two-phase thermal-hydrologic-chemical coupled model

Liu

Yan

et al. 2019

Chemical Engineering Science

Self Cite

View full text Add to dashboard Cite

A general method for simulating reactive dissolution in carbonate rocks with arbitrary geometry

Cited by 8 publications

References 45 publications

Reactive-infiltration instability in radial geometry: From dissolution fingers to star patterns

Reactive-infiltration instability in radial geometry: From dissolution fingers to star patterns

Three-dimensional simulation of acidizing process in carbonate rocks using the Darcy–Forchheimer framework

Modeling and analysis of the acidizing process in carbonate rocks using a two-phase thermal-hydrologic-chemical coupled model

Contact Info

Product

Resources

About