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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 50724 (06)
- University: Sharif University of Technology
- Department: Chemical and Petroleum Engineering
- Advisor(s): Shad, Saeed
- Abstract:
- Production of solid particles is a phenomenon that occurs in most oil and gas well. This phenomenon can cause many problems in every life stage of a well such as erosion of surface equipment, subsurface equipment and environmental problems associated with solid particles disposal. On the other hand, this phenomenon can increase the permeability of near wellbore areas, which is considered to be the advantages of solid particles production. In this study, nine sandstone samples were prepared and different pressure ratios have been used for evaluation production of sand in different situations. Also, in the next step, by numerical simulations, studies of stresses around a well and identification of possible areas for production of solid particles were performed. The experimental results demonstrate that the production of sand in each case shows behavior similar to power law functions. Also when the pressure ratio applied to the samples decreased, the production of sand will be increased. The samples permeability is increased as a result of sand production, and behaves stationary which is a function of the weight of cumulative produced sand and the initial permeability of the samples. Accordingly, we have tried to develop relationships to predict sample permeability and the weight of the produced sand in different pressure ratios. Numerical simulations represent stress variations due to fluid production. The areas around the well are more likely to be sandy areas
- Keywords:
- Sand Production ; Permeability ; Geomechanical Process ; Rock Mechanics ; Solid Particles
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