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This project was a study on tight gas reservoir. Tight gas reservoirs have been known to be difficult to produce due to its low permeability. And several studies had been made on fracture stimulation so that this tight gas reservoir productivity can be increased. Because of that, this project will be on fracture stimulation for tight gas focusing on the proppant diameter. In fracture stimulation, several fracture parameters plays a vital role in improving the production of a reservoir. We need to identify the fracture half length and dimensionless fracture conductivity that can generate a high absolute permeability and also the proppant median diameter for doing the fracturing job. Thus, the objectives of this project were to determine and analyze the value of dimensionless fracture conductivity that can result in a high value of fracture half length which will be used for doing simulation with 4 different sizes of proppant (median diameter) and its permeability on the production responses. In the early stage of this project, research will be done on tight gas reservoir, and fracture stimulation. After that, the reservoir parameters including the rock, fluids, and PVT parameters that is needed to do the simulation will be constructed as our input. This project requires the use of software (WellFlo) to do simulation on the fracture. After the project had been conducted it' was acquired that the fracture halflength will increase as we decrease the FCD, thus we had chosen FCD = 1 to be used for doing simulation using the WellFlo. Using this value of FCD, the simulation on fracturing is conducted to see the trend of AOF after we had introduce fracturing using different size of proppant median diameter. As the end result, the value of proppant median diameter chosen is 0.69lmm as it gave us the highest value of AOF where the AOF increases from 50.299MMscf/d before fracture to 140.385MMscf/d after fracture. As the conclusion, the productivity of the tight gas reservoir can be enhanced by conducting fracture stimulation on the reservoir and it depends on several fracture parameters such as the dimensionless fracture conductivity, fracture half-length, fracture width, proppant permeability, proppant median diameter and etc.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir characterization and well testing - Naturally fractured reservoirs
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 12 Nov 2013 16:00
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10480

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