The Effect of Confining Pressure on the Sand Production in Hydrocarbon Reservoirs by Using Discrete Element Method

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Seyed Atashi m.; GOSHTASBI K.; Basirat r.

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Journal: JOURNAL OF ROCK MECHANICS Year:2017 | Volume:1 | Issue:1 Page(s): 35-42

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Title

The Effect of Confining Pressure on the Sand Production in Hydrocarbon Reservoirs by Using Discrete Element Method

Author(s)

Seyed Atashi m. | GOSHTASBI K. | Basirat r. | Issue Writer Certificate

Keywords

Sand Production

Discrete Element Method

Confining Pressure

PFC3D Software

Fluid Flow

Abstract

Iran has the first world's gas reserves and the fourth largest oil reserves, which most of them are located in the sandstone reservoirs. In fields such as Mansoori, Ahvaz and Rag Sefid have more problem of Sand Production than other reservoirs. This problem should be investigated for these reservoirs. Summary The problem of Sand Production as one of the major challenges has attracted many researchers over the years. In this regard, many techniques have been developed and significant evolutionary growth. Some of these methods are laboratory, analytical and numerical methods. The effect of various parameters on the Sand Production is studied by using these methods. The best approach is three-dimensional modeling of Sand Production due to the complexities of this problem. In this paper, threedimensional modeling is done in PFC3D Software. The results showed that Sand Production is raised with increasing of Confining Pressure. Introduction Studies show that many factors affected on the failure and separation of sand grains from reservoir rock. The prediction of Sand Production is very complicated, because of the combination of hydrodynamic and geomechanical processes in the mechanism of failure, erosion and transport of grains at the same time. One of the methods for examining of the mechanism of Sand Production in the well is numerical modeling of reservoir rock and Fluid Flow with integrated solving of fluid and rock equations. One of the parameters in the Sand Production is Confining Pressure, in other words earth lateral pressure that the effect of this parameter should be studied. Methodology and Approaches In this paper, the effect of Confining Pressure was investigated by using Discrete Element Method in PFC3D Software. The Navier-Stokes equation is used for modeling of Fluid Flow between the particles and the effect of liquid on solid particles in the path of Fluid Flow is considered in each of the elements. At the first, the numerical results were compared with experimental model. The impact of Confining Pressure on Sand Production is investigated after validation of the numerical. Results and Conclusions Sand Production rate in numerical models has a good agreement with experimental results in the wells without gravel pack. Numerical results showed that rock around the wells are loosed with beginning of the Sand Production and loosed region is expanded with increasing of production. The results also showed that the weak formations, that Confining Pressure is high, are more stimulated compared with the formations have less stress. So, Sand Production is risen with increasing Confining Pressure.

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APA: Copy

Seyed Atashi, m., GOSHTASBI, K., & Basirat, r.. (2017). The Effect of Confining Pressure on the Sand Production in Hydrocarbon Reservoirs by Using Discrete Element Method. JOURNAL OF ROCK MECHANICS, 1(1 ), 35-42. SID. https://sid.ir/paper/268312/en

Vancouver: Copy

Seyed Atashi m., GOSHTASBI K., Basirat r.. The Effect of Confining Pressure on the Sand Production in Hydrocarbon Reservoirs by Using Discrete Element Method. JOURNAL OF ROCK MECHANICS[Internet]. 2017;1(1 ):35-42. Available from: https://sid.ir/paper/268312/en

IEEE: Copy

m. Seyed Atashi, K. GOSHTASBI, and r. Basirat, “The Effect of Confining Pressure on the Sand Production in Hydrocarbon Reservoirs by Using Discrete Element Method,” JOURNAL OF ROCK MECHANICS, vol. 1, no. 1 , pp. 35–42, 2017, [Online]. Available: https://sid.ir/paper/268312/en

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