Software Development for Calculations of Voidage Replacement Ratio (VRR)

The objective of this project is to develop a software for the calculations of
Voidage Replacement Ratio (VRR). VRR is an indicator of the performanceof the water
injection process. Water injection is used to control and maintain the reservoir pressure.
In doing the calculations, there is a need for all these data required for the calculation to
be managed and used as input for the VRR calculations. Such data are the well test data
and data from daily activity report of the offshore operations.
Currently, all the data management and calculations are performed using
Microsoft Excel Spreadsheet. This method lacks security integrity and is vulnerable to
the data. Therefore, appropriate software must be developed in order to manage the data
and calculations properly and also to provide a secure database system.
To understand the calculation procedures and the relevance of various input data,
research was performed on reservoir pressure maintenance concepts, in general and the
water injection process, in particular.
Research was done on the basic reservoir engineering principles in reservoir
behavior such as fluids properties and PVT diagram and enhanced oil recovery by
waterflooding. In developing the software or system, which can perform the calculations
of VRR, four software were utilized. The software was Dreamweaver, which was used to
create the interfaces. Internet Information Services (IIS) software was used to make the
computer act as a server. Active Server Pages (ASP), whichis in the form of source code,
was used to responds to the users' request and finally Microsoft Access was used to
develop the database for the software.