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IJSTR >> Volume 9 - Issue 1, January 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Effect Of Rock And Fluid Properties On Pressure Transient And Radial Flow During Fall-Off Test

[Full Text]

 

AUTHOR(S)

Muhammad Taufiq Fathaddin, Ratnayu Sitaresmi, Mohammad Firdaus Sabaruddin, Kunto Wibisono, Ilman Muhammad Azmi

 

KEYWORDS

Oil Well, Pressure Fall-off Test, Pressure Transient, Radial Flow, Radius of Investigation, Injection, Shut-in Time.

 

ABSTRACT

The physical properties of rock and fluid tend to affect the velocity of transient pressure propagation and the formation of a radial flow pattern. In this study, the pressure fall-off test data of the X-1 well, which is one of five injection wells located in an oil field in Borneo Island was analyzed using software. Based on the well test result and other available data, a proper pressure fall-off test was designed for the field. Furthermore, sensitivity tests of several parameters, namely compressibility viscosity, permeability, porosity, and shut-in time were conducted, to analyze the effect of rock and fluid properties. The permeability and shut-in time were directly proportional to the radius of investigation, while porosity, compressibility, and viscosity were inversely proportional. A constant value of the correlation of investigation radius obtained from this research was 1491, while the radial flow periods were determined from the pressure derivative curve observed. The effect of porosity on the formation of radial flow regime was ignored, the radial flow regime came earlier due to the increase in compressibility and permeability, while viscosity delayed the start of radial flow regime.

 

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